CN112293358B - Crab pot with improved structure - Google Patents

Crab pot with improved structure Download PDF

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Publication number
CN112293358B
CN112293358B CN202011277557.1A CN202011277557A CN112293358B CN 112293358 B CN112293358 B CN 112293358B CN 202011277557 A CN202011277557 A CN 202011277557A CN 112293358 B CN112293358 B CN 112293358B
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China
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connecting rod
crab
fixedly connected
circular ring
connecting pipe
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CN112293358A (en
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魏天琪
郑雄胜
朱卢山
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K69/00—Stationary catching devices
    • A01K69/06—Traps
    • A01K69/10—Collapsible traps

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)

Abstract

The invention provides a crab pot with an improved structure, and belongs to the technical field of aquatic product fishing. The crab catching device comprises a connecting pipe, a first circular ring, a second circular ring, a first crab feeding mechanism, a second crab feeding mechanism, an adjusting mechanism and a telescopic mechanism, wherein the first circular ring is coaxially arranged at the left end of the connecting pipe through a first net cylinder, a first spiral spring is arranged on the inner side wall of the first net cylinder, the second circular ring is coaxially arranged at the right end of the connecting pipe through a third net cylinder, a second spiral spring is arranged on the inner side wall of the third net cylinder, a crab catching cavity is formed among the first net cylinder, the third net cylinder and the connecting pipe, the first crab feeding mechanism can enable crabs to climb into the crab catching cavity, the second crab feeding mechanism can enable crabs to climb into the crab catching cavity, the adjusting mechanism can simultaneously open and close the first crab feeding mechanism and the second crab feeding mechanism, and the telescopic mechanism can adjust the distance between the first circular ring and the second circular ring. The crab pot can change the size of the crab pot and simultaneously can prevent crabs from escaping.

Description

Crab pot with improved structure
Technical Field
The invention belongs to the technical field of tidal current energy power generation, and relates to a crab pot with an improved structure.
Background
The crab cage is used as a tool for catching crabs, the main body of the crab cage is of a frame net cage structure, and holes for inducing the crabs to enter the cage body are formed in the net.
The conventional crab pot comprises a fixed crab pot and a telescopic crab pot, the fixed crab pot is fixed in size, the number of crabs caught is limited, and the telescopic crab pot is easily influenced by waves, so that the size of the crab pot is changed, and the crabs enter the crab pot.
In addition, a plurality of crab inlet holes are formed in the periphery of the crab pot, the crab inlet holes of the existing crab pot are too large or too small, when the crab inlet holes are large, crabs in the crab pot easily escape from the crab pot along with waves, and when the crab inlet holes are small, the crabs cannot easily enter the crab pot through the crab inlet holes, so that the fishing quantity is reduced, and the fishing efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a crab pot with an improved structure, which can change the size of the crab pot according to needs, can also change the size of crab inlet holes, avoids crabs escaping, and improves the fishing efficiency.
The purpose of the invention can be realized by the following technical scheme:
the crab pot with the improved structure comprises a connecting pipe, wherein the connecting pipe is horizontally arranged;
the first ring is coaxially arranged at the left end of the connecting pipe, a first net barrel is connected between the first ring and the left end of the connecting pipe, a first spiral spring is arranged on the inner side wall of the first net barrel, one end of the first spiral spring is fixedly connected with the first ring, and the other end of the first spiral spring is fixedly connected with the left end of the connecting pipe;
the second ring is coaxially arranged at the right end of the connecting pipe, a third net barrel is connected between the second ring and the right end of the connecting pipe, a second spiral spring is arranged on the inner side wall of the third net barrel, one end of the second spiral spring is fixedly connected with the second ring, the other end of the second spiral spring is fixedly connected with the right end of the connecting pipe, and a crab catching cavity is formed among the first net barrel, the third net barrel and the connecting pipe;
the first crab feeding mechanism is arranged in the first circular ring and can enable crabs to climb into the crab catching cavity;
the second crab feeding mechanism is arranged in the second circular ring and can enable crabs to climb into the crab catching cavity;
the adjusting mechanism is arranged in the connecting pipe and can close the first crab feeding mechanism and the second crab feeding mechanism simultaneously when waves exist in water;
the telescopic mechanism is arranged between the first circular ring and the second circular ring, and the distance between the first circular ring and the second circular ring can be adjusted by the telescopic mechanism, so that the volume of the crab catching cavity is changed.
In the crab pot with the improved structure, the first crab feeding mechanism comprises:
the second net barrel is coaxially arranged in the first net barrel, the left end of the second net barrel is fixedly connected with the first circular ring, and the cross section of the second net barrel is gradually reduced from left to right;
the first opening, first opening is the rhombus, the other end and the first opening of second net section of thick bamboo link firmly, first opening has: the connecting rod comprises a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod, wherein the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are sequentially hinged together end to end;
and one end of the first reset spring is fixedly connected with the hinged shaft between the first connecting rod and the second connecting rod, and the other end of the first reset spring is fixedly connected with the hinged shaft between the third connecting rod and the fourth connecting rod.
In the crab pot with the improved structure, the second crab feeding mechanism comprises:
the fourth net cylinder is coaxially arranged in the second net cylinder, the right end of the fourth net cylinder is fixedly connected with the second ring, and the cross section of the fourth net cylinder is gradually reduced from right to left;
the second opening, the second opening is the rhombus, the other end and the second opening of fourth net section of thick bamboo link firmly, the second opening has: the fifth connecting rod, the sixth connecting rod, the seventh connecting rod and the eighth connecting rod are sequentially hinged together end to end;
and one end of the second return spring is fixedly connected with the hinged shaft between the fifth connecting rod and the sixth connecting rod, and the other end of the second return spring is fixedly connected with the hinged shaft between the seventh connecting rod and the eighth connecting rod.
In the crab pot with the improved structure, the adjusting mechanism comprises:
the first adjusting structure is arranged on the connecting pipe and can reduce an included angle between the first connecting rod and the third connecting rod by using wave energy and simultaneously reduce an included angle between the fifth connecting rod and the seventh connecting rod;
the second adjusting structure is arranged on the connecting pipe and can reduce an included angle between the second connecting rod and the fourth connecting rod by using wave energy and simultaneously reduce an included angle between the sixth connecting rod and the eighth connecting rod.
In the crab pot with the improved structure, the first adjusting structure comprises:
the second rotating shaft is horizontally and rotatably arranged on the left side of the connecting pipe and is provided with a plurality of second rotating blade plates along the circumferential direction;
one end of the second rotating shaft extends into the connecting pipe, the end part of the second rotating shaft is fixedly connected with the first fixing plate, a first roller is fixedly arranged on one side, away from the second rotating shaft, of the first fixing plate, and the first roller and the second rotating shaft are coaxially arranged;
one end of the first pull rope is fixedly connected with the first fixing plate, and the other end of the first pull rope is fixedly connected with a hinged shaft between the first connecting rod and the third connecting rod;
and one end of the second pull rope is fixedly connected with the first fixing plate, and the other end of the second pull rope is fixedly connected with a hinged shaft between the fifth connecting rod and the seventh connecting rod.
In the crab pot with the improved structure, the second adjusting structure comprises:
the third rotating shaft is horizontally and rotatably arranged on the right side of the connecting pipe, and a plurality of third rotating blades are circumferentially arranged on the third rotating shaft;
one end of the third rotating shaft extends into the connecting pipe, the end part of the third rotating shaft is fixedly connected with the second fixing plate, a second roller is fixedly arranged on one side, away from the third rotating shaft, of the second fixing plate, and the second roller and the third rotating shaft are coaxially arranged;
one end of the third pull rope is fixedly connected with the second fixing plate, and the other end of the third pull rope is fixedly connected with a hinged shaft between the second connecting rod and the fourth connecting rod;
and one end of the fourth pull rope is fixedly connected with the second fixing plate, and the other end of the fourth pull rope is fixedly connected with a hinged shaft between the sixth connecting rod and the eighth connecting rod.
In the crab pot with the improved structure, the wheel surfaces of the first roller and the second roller are provided with arc-shaped grooves.
In foretell crab pot of improvement structure, the top of connecting pipe is equipped with first perforation, first fenestrate upper end articulates there is the apron, first fenestrate lower extreme is connected with the pipe, the lower extreme of pipe is equipped with the shrouding, the bait box has been placed in the pipe, set up a plurality of second perforation on the pipe wall of pipe lower extreme, be equipped with actuating mechanism on the apron, actuating mechanism can utilize the wave energy to extrude bait water around the bait box to the crab intracavity.
In the crab pot with the improved structure, the driving mechanism comprises:
the vertical rotation of first pivot sets up on the apron, the upper end of first pivot is equipped with the first rotor plate of a plurality of along circumference, the lower extreme of first pivot extends to in the pipe and the tip has set firmly the impeller.
In the crab pot with the improved structure, the bottom of the first circular ring is provided with the first seat plate through the first supporting plate, the bottom of the second ring is provided with a second seat plate through a second supporting plate, the first seat plate and the second seat plate are positioned in the same horizontal plane, the bottom of the connecting pipe is provided with a limiting block, the limiting block is provided with a first through hole and a second through hole, a first screw rod is horizontally and fixedly arranged on one side of the first supporting plate close to the limiting block, the other end of the first screw rod passes through the first through hole, a first baffle is arranged at the end part of the first screw rod, a first nut is connected on the first screw rod between the first supporting plate and the limiting block in a threaded manner, a second screw rod is horizontally and fixedly arranged on one side, close to the limiting block, of the second supporting plate, a second baffle is arranged at the other end of the second screw rod after the other end of the second screw rod penetrates through the second through hole and the end of the second through hole, and a second nut is connected to the second screw rod between the second supporting plate and the limiting block through threads.
Compared with the prior art, the invention has the following advantages:
1. the distance between the first circular ring and the second circular ring is adjusted through the telescopic mechanism, the crab pot is adjusted to be in a proper size, a bait box is placed in the crab pot and then placed in water, crabs are attracted to the position near the crab pot and enter the crab catching cavity through the first crab feeding mechanism and the second crab feeding mechanism, and when waves exist in the water, the first crab feeding mechanism and the second crab feeding mechanism can be closed through the adjusting mechanism at the same time, so that the crabs in the crab catching cavity are prevented from being taken out of the crab pot by the waves, and the number of the crabs in the crab catching cavity is increased;
2. the bait box is placed in the crab catching cavity, and the left end of the second net cylinder is connected with the first circular ring, so that the opening at the left end is larger, crabs can conveniently enter the second net cylinder, and in an initial state, under the action of the first return spring, the first opening is in an open state and is in a flat rhombus shape, so that the crabs can enter the crab catching cavity through the second net cylinder and cannot easily escape from the crab catching cavity, and the crab catching efficiency is improved;
3. the bait box is placed in the crab catching cavity, and the left end of the fourth net cylinder is connected with the second circular ring, so that the opening at the right end is larger, the crabs can conveniently enter the fourth net cylinder, and in an initial state, under the action of the second return spring, the second opening is in an open state and is in a flat rhombus shape, so that the crabs can enter the crab catching cavity through the fourth net cylinder and cannot easily escape, and the crab catching efficiency is improved;
4. when waves exist in water, the included angle between the first connecting rod and the third connecting rod is reduced through the first adjusting structure and the second adjusting structure, the included angle between the second connecting rod and the fourth connecting rod reduces the size of the first opening, the crabs are prevented from escaping from the first opening, the included angle between the fifth connecting rod and the seventh connecting rod, the included angle between the sixth connecting rod and the eighth connecting rod is reduced through the first adjusting structure and the second adjusting structure, the size of the second opening is reduced, the crabs are prevented from escaping from the second opening, and when the waves disappear, the first opening and the second opening are opened again, so that the crabs can enter the device, and the operation is simple;
5. the wave pushes the second rotating blade plate to drive the second rotating shaft to rotate, the first fixing plate rotates to wind the first pull rope and the second pull rope on the first roller, the hinge shaft between the first connecting rod and the third connecting rod is driven to move towards the left side, the size of the first opening is reduced, the fifth connecting rod and the seventh connecting rod are driven to move towards the left side, the size of the second opening is reduced, the structure is simple, the sizes of the first opening and the second opening are reduced by using wave energy, and time and labor are saved;
6. the wave pushes the third rotating vane plate to drive the third rotating shaft to rotate, the second fixing plate rotates to wind the third pull rope and the fourth pull rope on the second roller, the hinge shaft between the second connecting rod and the fourth connecting rod is driven to move towards the right side, the size of the first opening is reduced, the sixth connecting rod and the eighth connecting rod are driven to move towards the right side, the size of the second opening is reduced, the structure is simple, the sizes of the first opening and the second opening are reduced by utilizing wave energy, and time and labor are saved;
7. the second net cylinder and the fourth net cylinder are long, so that the bait box is inconvenient to place in the crab catching cavity, the cover plate can be opened at the moment, the bait box is placed in the round pipe, the side wall of the round pipe is provided with a plurality of second through holes, bait can flow into the crab catching cavity through the second through holes, the operation is simple, and under the condition of waves, the driving mechanism can quickly extrude water in the round pipe into the crab catching cavity, so that crabs can be attracted into the cage conveniently; in addition, the round pipe is arranged in the connecting pipe, so that the bait box is positioned in the middle of the crab catching cavity, the situation that the bait box moves in the crab catching cavity due to the movement of the crab catching cavity and is finally clamped at a certain corner of the crab catching cavity, so that crabs cannot be attracted into the crab catching cavity correctly, and the crab catching efficiency is reduced;
8. when the crab pot is extended, the first circular ring and the second circular ring are moved to two sides, the first spiral spring and the second spiral spring are lengthened, the first screw rod and the second screw rod slide along the first through hole and the second through hole respectively, the volume of the crab catching cavity is increased, at the moment, the first nut is rotated to the left side of the contact limiting block, the second nut is rotated to the right side of the contact limiting block, the positions of the first circular ring and the second circular ring are fixed, the first circular ring and the second circular ring are prevented from moving along with continuous waves, the volume of the crab pot is changed, and the crab entering cage is influenced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 2;
FIG. 4 is a cross-sectional view at C-C of FIG. 2;
FIG. 5 is a cross-sectional view taken at D-D of FIG. 2;
fig. 6 is a cross-sectional view at E-E in fig. 1.
In the figure, 1, a first circular ring; 11. a first net drum; 12. a first coil spring; 13. a second mesh drum; 14. a first seat plate; 141. a first support plate; 15. a first screw; 151. a first baffle plate; 152. a first nut; 2. a second circular ring; 21. a third net drum; 22. a second coil spring; 23. a fourth mesh drum; 24. a second seat plate; 241. a second support plate; 25. A second screw; 251. a second baffle; 252. a second nut; 3. a connecting pipe; 31. a first perforation; 4. a first opening; 41. a first link; 42. a second link; 43. a third link; 44. a fourth link; 45. a first return spring; 5. a second opening; 51. a fifth link; 52. a sixth link; 53. a seventh connecting rod; 54. an eighth link; 55. a second return spring; 6. a cover plate; 61. a first rotating shaft; 611. a first vane plate; 612. an impeller; 62. a circular tube; 621. a second perforation; 63. closing the plate; 631. a bait cartridge; 64. a support bar; 7. a second rotating shaft; 71. a second rotating vane plate; 72. a first fixing plate; 721. a first pull cord; 722. a second pull cord; 73. a first roller; 731. an arc-shaped groove; 8. a third rotating shaft; 81. a third rotating blade plate; 82. a second fixing plate; 821. a third pull cord; 822. A fourth pull cord; 83. a second roller; 9. a limiting block; 91. a first through hole; 92. a second via.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 6, a crab pot with an improved structure comprises a connecting pipe 3, a first circular ring 1, a second circular ring 2, a first crab feeding mechanism, a second crab feeding mechanism, an adjusting mechanism and a telescopic mechanism.
The connecting pipe 3 is horizontally arranged.
The coaxial setting of first ring 1 is at the left end of connecting pipe 3, be connected with first net section of thick bamboo 11 between the left end of first ring 1 and connecting pipe 3, be equipped with first coil spring 12 on the inside wall of first net section of thick bamboo 11, the one end of first coil spring 12 links firmly with first ring 1, and the other end links firmly with the left end of connecting pipe 3.
The second ring 2 is coaxially arranged at the right end of the connecting pipe 3, a third net cylinder 21 is connected between the second ring 2 and the right end of the connecting pipe 3, a second spiral spring 22 is arranged on the inner side wall of the third net cylinder 21, one end of the second spiral spring 22 is fixedly connected with the second ring 2, the other end of the second spiral spring is fixedly connected with the right end of the connecting pipe 3, and a crab catching cavity is formed among the first net cylinder 11, the third net cylinder 21 and the connecting pipe 3.
The first crab feeding mechanism is arranged in the first circular ring 1 and can enable crabs to climb into the crab catching cavity.
The first crab feeding mechanism is arranged in the second circular ring 2, and the second crab feeding mechanism can enable crabs to climb into the crab catching cavity.
The adjusting mechanism is arranged in the connecting pipe 3, and when waves exist in water, the adjusting mechanism can close the first crab feeding mechanism and the second crab feeding mechanism simultaneously.
The telescopic mechanism is arranged between the first circular ring 1 and the second circular ring 2, and the telescopic mechanism can adjust the distance between the first circular ring 1 and the second circular ring 2, so that the volume of the crab catching cavity is changed.
The distance between the first circular ring 1 and the second circular ring 2 is adjusted through the telescopic mechanism, the crab pot is adjusted to be in a proper size, the bait box 631 is placed in the crab pot and then placed in water, crabs are attracted to the position near the crab pot and enter the crab catching cavity through the first crab feeding mechanism and the second crab feeding mechanism, when waves exist in the water, the first crab feeding mechanism and the second crab feeding mechanism can be closed through the adjusting mechanism, the crabs in the crab catching cavity are prevented from being brought out of the crab pot by the waves, and the number of the crabs in the crab catching cavity is increased.
Specifically, the first crab feeding mechanism comprises a second net barrel 13, a first opening 4 and a first return spring 45.
The second net barrel 13 is coaxially arranged in the first net barrel 11, the left end of the second net barrel 13 is fixedly connected with the first circular ring 1, and the cross section of the second net barrel 13 is gradually reduced from left to right.
The first opening 4 is in a diamond shape, the other end of the second net cylinder 13 is fixedly connected with the first opening 4, and the first opening 4 is provided with: the connecting rod mechanism comprises a first connecting rod 41, a second connecting rod 42, a third connecting rod 43 and a fourth connecting rod 44, wherein the first connecting rod 41, the second connecting rod 42, the third connecting rod 43 and the fourth connecting rod 44 are sequentially hinged together end to end.
One end of the first return spring 45 is fixedly connected with the hinge shaft between the first connecting rod 41 and the second connecting rod 42, and the other end of the first return spring is fixedly connected with the hinge shaft between the third connecting rod 43 and the fourth connecting rod 44.
The bait box 631 is arranged in the crab catching cavity, and the left end of the second net cylinder 13 is connected with the first circular ring 1, so that the left end opening is large, the crabs can conveniently enter the second net cylinder 13, and in an initial state, under the action of the first return spring 45, the first opening 4 is in an open state and is in a flat rhombus shape, so that the crabs can enter the crab catching cavity through the second net cylinder 13 and cannot easily escape from the crab catching cavity, and the crab catching efficiency is improved.
Specifically, the second crab feeding mechanism comprises a fourth net barrel 23, a second opening 5 and a second return spring 55.
The fourth net cylinder 23 is coaxially arranged in the second net cylinder 21, the right end of the fourth net cylinder 23 is fixedly connected with the second ring 2, and the cross section of the fourth net cylinder 23 is gradually reduced from right to left.
The second opening 5 is a rhombus, the other end of the fourth net cylinder 23 is fixedly connected with the second opening 5, and the second opening 5 is provided with: the connecting rod comprises a fifth connecting rod 51, a sixth connecting rod 52, a seventh connecting rod 53 and an eighth connecting rod 54, wherein the fifth connecting rod 51, the sixth connecting rod 52, the seventh connecting rod 53 and the eighth connecting rod 54 are sequentially hinged together end to end.
One end of the second return spring 55 is fixedly connected with the hinge shaft between the fifth connecting rod 51 and the sixth connecting rod 52, and the other end of the second return spring is fixedly connected with the hinge shaft between the seventh connecting rod 53 and the eighth connecting rod 54.
The bait box 631 is placed in the crab catching cavity, and the left end of the fourth net cylinder 23 is connected with the second ring 2, so that the right end opening is large, so that crabs can enter the fourth net cylinder 23 conveniently, and in an initial state, under the action of the second return spring 55, the second opening 5 is in an open state and is in a flat rhombus shape, so that the crabs can enter the crab catching cavity through the fourth net cylinder 23 and cannot escape easily, and the crab catching efficiency is improved.
Specifically, the adjustment mechanism includes a first adjustment structure and a second adjustment structure.
The first adjusting structure is provided on the connecting pipe 3, and the first adjusting structure can reduce the included angle between the first connecting rod 41 and the third connecting rod 43 and simultaneously reduce the included angle between the fifth connecting rod 51 and the seventh connecting rod 53 by using wave energy.
The second adjusting structure is provided on the connecting pipe 3, and the second adjusting structure can reduce the included angle between the second connecting rod 42 and the fourth connecting rod 44 and simultaneously reduce the included angle between the sixth connecting rod 52 and the eighth connecting rod 54 by using wave energy.
When waves exist in water, the included angle between the first connecting rod 41 and the third connecting rod 43 is reduced through the first adjusting structure and the second adjusting structure, the included angle between the second connecting rod 42 and the fourth connecting rod 44 is reduced, the size of the first opening 4 is reduced, the crabs are prevented from escaping from the first opening 4, the included angle between the fifth connecting rod 51 and the seventh connecting rod 53 is reduced through the first adjusting structure and the second adjusting structure, the included angle between the sixth connecting rod 52 and the eighth connecting rod 54 is reduced, the size of the second opening 5 is reduced, the crabs are prevented from escaping from the second opening 5, and after the waves disappear, the first opening 4 and the second opening 5 are opened again, so that the crabs can enter the device conveniently, and the operation is simple.
Specifically, the first adjusting structure includes the second rotating shaft 7, the first fixing plate 72, the first pulling rope 721, and the second pulling rope 722.
The second rotating shaft 7 is horizontally and rotatably arranged on the left side of the connecting pipe 3, and a plurality of second rotating blade plates 71 are arranged on the second rotating shaft 7 along the circumferential direction.
One end of the second rotating shaft 7 extends into the connecting pipe 3, the end of the second rotating shaft is fixedly connected with the first fixing plate 72, a first roller 73 is fixedly arranged on one side, away from the second rotating shaft 7, of the first fixing plate 72, and the first roller 73 and the second rotating shaft 7 are coaxially arranged.
One end of the first pulling rope 721 is fixedly connected to the first fixing plate 72, and the other end of the first pulling rope is fixedly connected to the hinge shaft between the first connecting rod 41 and the third connecting rod 43.
One end of the second pull rope 722 is fixedly connected with the first fixing plate 72, and the other end of the second pull rope is fixedly connected with a hinge shaft between the fifth connecting rod 51 and the seventh connecting rod 53.
Wave promotes second rotating vane plate 71 and drives second pivot 7 and rotate, first fixed plate 72 rotates and twines first stay cord 721 and second stay cord 722 on first roller 73, it moves to the left side to drive the hinge axle between first connecting rod 41 and the third connecting rod 43, reduce the size of first opening 4, drive fifth connecting rod 51 and seventh connecting rod 53 simultaneously and move to the left side, reduce the size of second opening 5, moreover, the steam generator is simple in structure, utilize the wave energy to reduce the size of first opening 4 and second opening 5, time saving and labor saving.
Specifically, the second adjusting structure includes a third rotating shaft 8, a second fixing plate 82, a third pulling rope 821 and a fourth pulling rope 822.
The third rotating shaft 8 is horizontally and rotatably arranged on the right side of the connecting pipe 3, and the third rotating shaft 8 is circumferentially provided with a plurality of third rotating blade plates 81.
One end of the third rotating shaft 8 extends into the connecting pipe 3, the end of the third rotating shaft is fixedly connected with the second fixing plate 82, a second roller 83 is fixedly arranged on one side, away from the third rotating shaft 8, of the second fixing plate 82, and the second roller 83 and the third rotating shaft 8 are coaxially arranged.
One end of the third pulling rope 821 is fixedly connected with the second fixing plate 82, and the other end is fixedly connected with a hinge shaft between the second connecting rod 42 and the fourth connecting rod 44.
One end of the fourth pulling rope 822 is fixedly connected with the second fixing plate 82, and the other end of the fourth pulling rope is fixedly connected with the hinge shaft between the sixth connecting rod 52 and the eighth connecting rod 54.
Wave promotes third rotating vane plate 81 and drives third pivot 8 and rotates, second fixed plate 82 rotates and twines third stay cord 821 and fourth stay cord 822 on second roller 83, it moves to the right side to drive the hinge pin between second connecting rod 42 and the fourth connecting rod 44, reduce the size of first opening 4, drive sixth connecting rod 52 and eighth connecting rod 54 simultaneously and move to the right side, reduce the size of second opening 5, moreover, the steam generator is simple in structure, utilize the wave energy to reduce the size of first opening 4 and second opening 5, time saving and labor saving.
Specifically, the wheel surfaces of the first roller 73 and the second roller 73 are provided with arc-shaped grooves 731.
The arc-shaped groove 731 on the first roller 73 can prevent the first and second pull cords 721, 722 from sliding downward off the first roller 73, the arc-shaped groove 731 on the second roller 83 can prevent the third and fourth pull cords 821, 822 from sliding downward off the second roller 83, and the first and second pull cords 721, 722 can be wound around the first roller 73, and the third and fourth pull cords 821, 822 can be wound around the second roller 83.
Specifically, the top of connecting pipe 3 is equipped with first perforation 31, the upper end of first perforation 31 articulates there is apron 6, the lower extreme of first perforation 31 is connected with pipe 62, the lower extreme of pipe 62 is equipped with shrouding 63, bait box 631 has been placed in the pipe 62, a plurality of second perforation 621 has been seted up on the pipe wall of pipe 62 lower extreme, be equipped with actuating mechanism on the apron 6, actuating mechanism can utilize the wave energy to extrude bait water around the bait box 631 to the crab-catching intracavity.
The length of the second net cylinder 13 and the fourth net cylinder 23 is long, so that the bait box 631 is inconvenient to place in the crab catching cavity, the cover plate 6 can be opened at the moment, the bait box 631 is placed in the circular tube 62, the inner side wall of the circular tube 62 is provided with the plurality of second through holes 621, bait can flow into the crab catching cavity through the second through holes 621, the operation is simple, and under the condition of waves, the driving mechanism can quickly extrude water in the circular tube 62 into the crab catching cavity, so that crabs can be attracted into the cage conveniently; in addition, the round tube 62 is arranged in the connecting tube 3, so that the bait box 631 is positioned in the middle of the crab catching cavity, and the situation that the bait box 631 moves in the crab pot due to the movement of the crab pot and is finally clamped at a certain corner of the crab catching cavity, so that crabs cannot be attracted into the crab pot correctly, and the crab catching efficiency is reduced is avoided.
Specifically, the drive mechanism includes a first shaft 61.
The first rotating shaft 61 is vertically and rotatably arranged on the cover plate 6, a plurality of first rotating vane plates 611 are arranged at the upper end of the first rotating shaft 61 along the circumferential direction, the lower end of the first rotating shaft 61 extends into the circular tube 62, and an impeller 612 is fixedly arranged at the end of the first rotating shaft 61.
Water flow pushes the first rotating blade plate 611 to rotate, the first rotating shaft 61 is driven to rotate, the impeller 612 at the lower end of the first rotating shaft 61 rotates, water at the upper end of the circular tube 62 is pushed to the lower end of the circular tube 62 and then is extruded into the crab catching cavity through the second perforation 621, bait in the bait box 631 flows into the crab catching cavity along with the water in the circular tube 62, and the attracting efficiency of the bait box 631 is improved.
Specifically, the bottom of the first ring 1 is provided with a first seat plate 14 through a first support plate 141, the bottom of the second ring 2 is provided with a second seat plate 24 through a second support plate 241, the first seat plate 14 and the second seat plate 24 are in the same horizontal plane, the bottom of the connecting pipe 3 is provided with a limit block 9, the limit block 9 is provided with a first through hole 91 and a second through hole 92, one side of the first support plate 141 close to the limit block 9 is horizontally and fixedly provided with a first screw 15, the other end of the first screw 15 passes through the first through hole 91 and is provided with a first baffle 151 at the end, the first screw 15 between the first support plate 141 and the limit block 9 is in threaded connection with a first nut 152, one side of the second support plate 241 close to the limit block 9 is horizontally and fixedly provided with a second screw 25, the other end of the second screw 25 passes through the second through hole 92 and is provided with a second baffle 251 at the end, a second nut 252 is threadedly coupled to the second screw 25 between the second support plate 241 and the stopper 9.
When the crab pot needs to be extended, the first circular ring 1 and the second circular ring 2 are enabled to move towards two sides, the first spiral spring 12 and the second spiral spring 22 are lengthened, the first screw 15 and the second screw 25 respectively slide along the first through hole 91 and the second through hole 92, the volume of the crab catching cavity is increased, at the moment, the first nut 152 is rotated to the left side contacting the limiting block 9, the second nut 252 is rotated to the right side contacting the limiting block 9, the positions of the first circular ring 1 and the second circular ring 2 are fixed, and the situation that the volumes of the crab pot are changed and the crab entering into the crab pot are influenced due to the fact that the first circular ring 1 and the second circular ring 2 continuously move along with waves is avoided.
In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (9)

1. The crab pot with the improved structure is characterized by comprising a connecting pipe (3), wherein the connecting pipe (3) is horizontally arranged;
the first circular ring (1) is coaxially arranged at the left end of the connecting pipe (3), a first net barrel (11) is connected between the first circular ring (1) and the left end of the connecting pipe (3), a first spiral spring (12) is arranged on the inner side wall of the first net barrel (11), one end of the first spiral spring (12) is fixedly connected with the first circular ring (1), and the other end of the first spiral spring is fixedly connected with the left end of the connecting pipe (3);
the second circular ring (2) is coaxially arranged at the right end of the connecting pipe (3), a third net barrel (21) is connected between the second circular ring (2) and the right end of the connecting pipe (3), a second spiral spring (22) is arranged on the inner side wall of the third net barrel (21), one end of the second spiral spring (22) is fixedly connected with the second circular ring (2), the other end of the second spiral spring is fixedly connected with the right end of the connecting pipe (3), and a crab catching cavity is formed among the first net barrel (11), the third net barrel (21) and the connecting pipe (3);
the first crab feeding mechanism is arranged in the first circular ring (1) and can enable crabs to climb into the crab catching cavity;
the second crab feeding mechanism is arranged in the second circular ring (2) and can enable crabs to climb into the crab catching cavity;
the adjusting mechanism is arranged in the connecting pipe (3), and can close the first crab feeding mechanism and the second crab feeding mechanism simultaneously when waves exist in water;
the telescopic mechanism is arranged between the first circular ring (1) and the second circular ring (2), and can adjust the distance between the first circular ring (1) and the second circular ring (2) so as to change the volume of the crab catching cavity;
the first crab feeding mechanism comprises:
the second net cylinder (13) is coaxially arranged in the first net cylinder (11), the left end of the second net cylinder (13) is fixedly connected with the first circular ring (1), and the cross section of the second net cylinder (13) is gradually reduced from left to right;
a first opening (4), the first opening (4) is rhombus, the other end of the second net barrel (13) is fixedly connected with the first opening (4), and the first opening (4) is provided with: the connecting rod mechanism comprises a first connecting rod (41), a second connecting rod (42), a third connecting rod (43) and a fourth connecting rod (44), wherein the first connecting rod (41), the second connecting rod (42), the third connecting rod (43) and the fourth connecting rod (44) are sequentially hinged together end to end;
and one end of the first return spring (45) is fixedly connected with a hinged shaft between the first connecting rod (41) and the second connecting rod (42), and the other end of the first return spring is fixedly connected with a hinged shaft between the third connecting rod (43) and the fourth connecting rod (44).
2. The crab pot with an improved structure as claimed in claim 1, wherein the second crab feeding mechanism comprises:
the fourth net cylinder (23) is coaxially arranged in the second net cylinder (13), the right end of the fourth net cylinder (23) is fixedly connected with the second circular ring (2), and the cross section of the fourth net cylinder (23) is gradually reduced from right to left;
a second opening (5), the second opening (5) is rhombus, the other end of the fourth net barrel (23) is fixedly connected with the second opening (5), and the second opening (5) is provided with: the connecting rod mechanism comprises a fifth connecting rod (51), a sixth connecting rod (52), a seventh connecting rod (53) and an eighth connecting rod (54), wherein the fifth connecting rod (51), the sixth connecting rod (52), the seventh connecting rod (53) and the eighth connecting rod (54) are sequentially hinged together end to end;
and one end of the second return spring (55) is fixedly connected with a hinged shaft between the fifth connecting rod (51) and the sixth connecting rod (52), and the other end of the second return spring (55) is fixedly connected with a hinged shaft between the seventh connecting rod (53) and the eighth connecting rod (54).
3. The crab pot of claim 2, wherein the adjustment mechanism comprises:
the first adjusting structure is arranged on the connecting pipe (3) and can reduce an included angle between the first connecting rod (41) and the third connecting rod (43) by utilizing wave energy and simultaneously reduce an included angle between the fifth connecting rod (51) and the seventh connecting rod (53);
and the second adjusting structure is arranged on the connecting pipe (3) and can reduce an included angle between the second connecting rod (42) and the fourth connecting rod (44) by utilizing wave energy and simultaneously reduce an included angle between the sixth connecting rod (52) and the eighth connecting rod (54).
4. The crab pot of claim 3, wherein the first adjustment structure comprises:
the second rotating shaft (7) is horizontally and rotatably arranged on the left side of the connecting pipe (3), and a plurality of second rotating blade plates (71) are arranged on the second rotating shaft (7) along the circumferential direction;
one end of the second rotating shaft (7) extends into the connecting pipe (3) and the end part of the second rotating shaft is fixedly connected with the first fixing plate (72), a first roller (73) is fixedly arranged on one side, far away from the second rotating shaft (7), of the first fixing plate (72), and the first roller (73) and the second rotating shaft (7) are coaxially arranged;
one end of the first pull rope (721) is fixedly connected with the first fixing plate (72), and the other end of the first pull rope (721) is fixedly connected with a hinged shaft between the first connecting rod (41) and the third connecting rod (43);
and one end of the second pull rope (722) is fixedly connected with the first fixing plate (72), and the other end of the second pull rope (722) is fixedly connected with a hinged shaft between the fifth connecting rod (51) and the seventh connecting rod (53).
5. The crab pot of claim 4, wherein the second adjustment structure comprises:
the third rotating shaft (8) is horizontally and rotatably arranged on the right side of the connecting pipe (3), and a plurality of third rotating blade plates (81) are arranged on the third rotating shaft (8) along the circumferential direction;
one end of the third rotating shaft (8) extends into the connecting pipe (3) and the end part of the third rotating shaft is fixedly connected with the second fixing plate (82), a second roller (83) is fixedly arranged on one side, far away from the third rotating shaft (8), of the second fixing plate (82), and the second roller (83) and the third rotating shaft (8) are coaxially arranged;
one end of the third pull rope (821) is fixedly connected with the second fixing plate (82), and the other end of the third pull rope (821) is fixedly connected with a hinged shaft between the second connecting rod (42) and the fourth connecting rod (44);
and one end of the fourth pull rope (822) is fixedly connected with the second fixing plate (82), and the other end of the fourth pull rope (822) is fixedly connected with a hinged shaft between the sixth connecting rod (52) and the eighth connecting rod (54).
6. An improved crab pot as claimed in claim 5 wherein the first (73) and second (83) rollers have arcuate grooves (731) in their faces.
7. The crab pot with the improved structure according to claim 6, wherein a first through hole (31) is formed in the top of the connecting pipe (3), a cover plate (6) is hinged to the upper end of the first through hole (31), a round pipe (62) is connected to the lower end of the first through hole (31), a sealing plate (63) is arranged at the lower end of the round pipe (62), a bait box (631) is placed in the round pipe (62), a plurality of second through holes (621) are formed in the pipe wall of the lower end of the round pipe (62), and a driving mechanism is arranged on the cover plate (6) and can extrude bait water around the bait box (631) into the crab catching cavity by means of wave energy.
8. The improved crab pot of claim 7, wherein the drive mechanism comprises:
first pivot (61), the vertical rotation of first pivot (61) sets up on apron (6), the upper end of first pivot (61) is equipped with the first rotor plate of a plurality of (611) along circumference, the lower extreme of first pivot (61) extends to in pipe (62) and the tip has set firmly impeller (612).
9. The crab pot with an improved structure according to claim 8, wherein the bottom of the first ring (1) is provided with a first seat plate (14) through a first support plate (141), the bottom of the second ring (2) is provided with a second seat plate (24) through a second support plate (241), the first seat plate (14) and the second seat plate (24) are located in the same horizontal plane, the bottom of the connecting pipe (3) is provided with a limit block (9), the limit block (9) is provided with a first through hole (91) and a second through hole (92), one side of the first support plate (141) close to the limit block (9) is horizontally and fixedly provided with a first screw rod (15), the other end of the first screw rod (15) passes through the first through hole (91) and is provided with a first baffle (151), the first screw rod (15) located between the first support plate (141) and the limit block (9) is in threaded connection with a first nut (152), one side of the second support plate (241) close to the limiting block (9) is horizontally and fixedly provided with a second screw (25), the other end of the second screw (25) penetrates through the second through hole (92) and the end part of the second through hole is provided with a second baffle (251), and a second nut (252) is connected to the second screw (25) between the second support plate (241) and the limiting block (9) in a threaded mode.
CN202011277557.1A 2020-11-16 2020-11-16 Crab pot with improved structure Active CN112293358B (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN113729947B (en) * 2021-08-26 2023-06-02 浙江省人民医院 Abdominal cavity suction device for robot operation
CN114097718B (en) * 2021-11-19 2022-11-22 浙江工业大学 Bait hanging type sea crab catching cage

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3075693B2 (en) * 1996-07-09 2000-08-14 幸男 大野 Stationary net
CN2896880Y (en) * 2006-04-19 2007-05-09 吴孝顺 Lobster catching cage
CN101720728A (en) * 2008-10-27 2010-06-09 陈堂光 Crab pot
CN205213906U (en) * 2015-10-26 2016-05-11 东山县盈晖网具制品有限公司 Elastic expansion catches cage

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