CN211496593U

CN211496593U - Crab pot suspension hook capable of automatically tripping

Info

Publication number: CN211496593U
Application number: CN201922162387.1U
Authority: CN
Inventors: 魏志军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-15
Anticipated expiration: 2029-12-05

Abstract

The utility model provides a crab pot that can automatic unbuckle hangs lifting hook, including the pendant, the top of pendant is provided with the couple, be provided with the structure of unbuckling on the couple, the structure of unbuckling includes the connector of unbuckling and elastic mechanism, elastic mechanism includes the connector, lower connector and two barrel springs, the pendant is buckled by the metal strip and forms, the couple is buckled by the metal strip upper end and forms, the lower part of two vertical metal strips about the connector connection is down, it is located the top of connector down and can slide from top to bottom to go up the connector, two barrel springs are located between connector and the lower connector and the cover is arranged in a vertical metal strip that corresponds, the upper end of two barrel springs corresponds the bottom surface with last connector respectively and is connected, and the lower extreme of two barrel springs corresponds the top surface with lower connector respectively. The utility model has the advantages that: the pendant plays the supporting role to cylindric spring, reduces the deformation that cylindric spring appears by external force impact striking.

Description

Crab pot suspension hook capable of automatically tripping

Technical Field

The utility model relates to an equipment manufacturing technical field is catched to the ocean, especially indicates a crab pot that can automatic unbuckle hangs lifting hook.

Background

The original Chinese patent application with the application number of CN201910747284.3 named as shrimp and crab cage hanger capable of automatically unbuckling discloses a shrimp and crab cage hanger capable of automatically unbuckling, which comprises a hanger, wherein the bottom of the hanger is provided with a connecting part connected with a hanging rope, the top of the hanger is provided with a hook, an unbuckling structure is arranged on the hook of the shrimp and crab cage hanger, the unbuckling structure comprises an unbuckling block and an elastic mechanism, the unbuckling block can axially rotate and is movably connected with a push rod, the lower end of the push rod is connected with the elastic mechanism, the elastic mechanism can return the tail end of the unbuckling block to a slide rod higher than the hook tip of the hook, and when the hanging rope is pulled by external force to automatically unbuckle, the elastic mechanism drives the tail end of the unbuckling block to slide downwards along the slide rod, and the hanging rope in the hook slides out of the hook to separate from the hook. The invention has the advantages of firm structure and long service life, can easily, easily and conveniently hang the shrimp and crab cages on the lifting ropes, can automatically drop the shrimp and crab cages hung on the lifting ropes from the main cable through the tripping bodies, and effectively reduces the labor intensity. However, the cylindrical spring of the elastic mechanism in the hanger is sleeved outside the metal elastic strip, lacks support or protection, and is easily deformed due to external impact and impact, and the service life of the hanger is affected, so the structure of the hanger needs to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide a design benefit, sound construction, the cylindric spring has bearing structure and non-deformable, long service life, can automatic unhook and automatic unhook convenient operation, efficient crab pot hang the lifting hook.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this can automatic crab pot of unbuckling hangs lifting hook, including the pendant, the bottom of pendant is provided with the connecting portion that can be connected with the string rope of crab pot, the top of pendant is provided with can hangs the couple of detaining mutually with the lifting rope still be provided with on the couple and can hang the automatic tripping device who breaks off of lifting rope of detaining in the couple, the tripping device includes trip piece and elastic mechanism, the front end of trip piece can be followed the couple hook tip and is made axial rotation, and the tail end of trip piece is connected with push rod upper end activity, just the afterbody of trip piece can be followed the slide bar on the pendant and can reciprocate as spacing rail, elastic mechanism sets up on the pendant of couple below, the lower extreme of push rod is connected with elastic mechanism, its characterized in that: elastic mechanism includes connector, lower connector and two barrel springs, the pendant is buckled by the metal strip and forms, the couple is buckled by the metal strip upper end and forms, lower connector is connected and is buckled into the lower part of controlling two vertical metal strips at the metal strip, the top that the connector is located down the connector just can wear to arrange in with sliding from top to bottom about the upper portion of two vertical metal strips, two barrel springs are located between connector and the lower connector and set in about two vertical metal strips that correspond separately in, the upper end of two barrel springs corresponds the bottom surface with last connector respectively and is connected, and the lower extreme of two barrel springs corresponds the top surface with lower connector respectively and is connected.

As an improvement, the upper connector may preferably be a cylindrical body, the lower end of the push rod is movably connected with the top of the cylindrical body, a cylindrical through hole capable of penetrating through the corresponding vertical metal strip is vertically arranged on the cylindrical body, two bottom surface cavities capable of extending into the upper ends of the corresponding cylindrical springs are arranged on the bottom surface of the cylindrical body corresponding to the cylindrical through hole, and the top ends of the two cylindrical springs are respectively connected with the bottom surfaces of the corresponding bottom surface cavities.

In a further improvement, the top ends of the two cylindrical springs can be preferably welded or bonded with the bottom surfaces of the corresponding bottom surface cavities respectively, the lower connecting body is a disc body or a strip body, and the bottom ends of the two cylindrical springs are welded or bonded with the corresponding top surfaces of the lower connecting body respectively.

The improved structure of the push rod is characterized in that a waist-shaped groove can be preferably arranged on the top surface of the cylindrical body, a rotating shaft penetrating through the side wall of the waist-shaped groove is inserted into the side portion of the cylindrical body, the lower end of the push rod extends into the waist-shaped groove, a rotating sleeve is arranged at the lower end of the push rod, and the rotating sleeve can be rotatably sleeved on the rotating shaft.

As an improvement, the hanger may preferably be formed by bending an elastic metal strip, the hook is formed by bending the upper end of the elastic metal strip, and the two cylindrical springs are respectively sleeved on the left rod body and the right rod body of the elastic metal strip.

In a further improvement, the connecting part of the elastic metal strip can be preferably an arc-shaped part which can reduce the abrasion of a hanging rope of the traction crab pot.

As an improvement, a sealing part which can automatically close the opening of the hook after the lifting rope enters the hook cavity of the hook can be preferably arranged at the hook.

The improved structure of the metal strip sealing device is characterized in that the sealing part comprises a movable sealing block and a top cylinder rod, wherein the fixed protrusion is arranged on the top surface of an upper connector, one end of the metal strip sequentially penetrates through the inner cavities of the lower connector, the upper connector and the top cylinder rod from bottom to top to extend out of the top surface of the top cylinder rod, the lower part of the movable sealing block is connected with the end part of the metal strip positioned above the top cylinder rod in a rotating mode, the top cylinder rod can move up and down along the metal strip along with the up-and-down movement of the upper connector, a torsion spring capable of keeping the movable sealing block in a trend of rotating outwards is arranged at the rotating position of the movable sealing block, an extending part is arranged at the top of the top cylinder rod upwards, and when the external force state does not exist, the extending part is tightly.

Further improvement, an arc-shaped notch which is convenient for the hanging rope to be clamped in can be preferably arranged on the movable sealing block.

As an improvement, the trip block can be preferably a groove movable plate with an opening at the top, the hook can be arranged in a groove above the trip block, the front part of the trip block is rotatably connected with the hook through a rotating shaft pin, the tail part of the trip block connects two groove side plates together through a rear shaft pin, the rear shaft pin is positioned in front of the sliding rod and below the bottom surface of the hook and is movably connected with the upper end of the push rod on the rear shaft pin positioned below the bottom surface of the hook, or the trip block has two trip blocks, the two trip blocks are symmetrically clamped on two side surfaces of the hook, the front part of the trip block is rotatably connected with the hook through the rotating shaft pin, the tail part of the trip block connects the two trip blocks together through the rear shaft pin, the rear shaft pin is positioned in front of the sliding rod and below the bottom surface of the hook, and the rear shaft pin is movably connected with the upper end of the push rod, the sliding rod is a metal strip of the shank section of the pendant, and the concave cavity at the tail of the trip block can be clamped on the metal strip of the shank section in a vertically sliding manner.

Compared with the prior art, the utility model has the advantages of: according to the elastic mechanism of the crab pot suspension hook, the two cylindrical springs are used for providing the restoring force of the tripping block, the two cylindrical springs apply force to the upper connecting body symmetrically, so that the upper connecting body can slide up and down stably relative to the hanging piece, and based on the same principle, when the upper connecting body is pressed, the two cylindrical springs can also disperse the extrusion force on the upper connecting body, so that the buffering effect on the upper connecting body is improved; meanwhile, the two cylindrical springs are respectively sleeved in the corresponding vertical metal strips in the left and right vertical metal strips, and the vertical metal strips play a certain supporting role on the corresponding cylindrical springs, so that the impact and the impact of external force on the cylindrical springs are reduced, the deformation conditions of the cylindrical springs, such as recess, eccentricity and fracture, are delayed, and the service life of the cylindrical springs is prolonged; in addition, as the number of the cylindrical springs is two, even if one of the cylindrical springs is damaged, the crab pot hanging hook can still be used for a period of time, and the service life of the crab pot hanging hook is further prolonged; the upper connector can be a cylindrical body, and two bottom surface cavities are arranged on the bottom surface of the cylindrical body, so that the two cylindrical springs can be sleeved in the corresponding bottom surface cavities, namely, a protective sleeve is sleeved on each of the two cylindrical springs, the service life of each cylindrical spring is further prolonged, the contact area between each cylindrical spring and the cylindrical body is increased by the bottom surface cavities, the cylindrical springs and the cylindrical body are connected more firmly, and the cylindrical springs are prevented from falling out of the bottom surface cavities; the hanger is made of metal strips, so that the weight is light, the processing, carrying and installation are very convenient, the manufacturing cost is low, the corrosion resistance effect is good, and the fishing hanger is suitable for fishing; the sealing part increases the sealing effect of the opening of the hook, and the lifting rope cannot easily fall out of the hook cavity of the hook after being sleeved in the hook cavity of the hook, so that the connecting effect of the lifting rope is improved, and the crab pot loss in the fishing process is reduced; this crab pot hangs lifting hook design benefit, sound construction, long-term use is difficult to damage, and use this crab pot to hang the lifting hook and can effectively prevent losing of catching the crab pot, and this crab pot hangs the lifting hook and can relax with the help of the piece that declutches, easily, conveniently hangs the crab pot on the lifting rope (the lifting rope is fixed connection on the master cable rope), again can will hang the crab pot on the lifting rope through the piece that declutches from the master cable rope automatic drop off, intensity of labour has been reduced effectively, and it is very convenient to use, and the operation is safe, simple, not only laborsaving but also save money, the efficiency of the crab catching operation has been improved greatly. The crab pot hanging hook has the advantages of convenience and safety in use and few operators, and the efficiency and the economic benefit of shrimp and crab catching operation are greatly improved by adopting the crab pot hanging hook.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a perspective view of the crab pot of FIG. 1 after being suspended;

FIG. 5 is an exploded view of the structure of FIG. 1;

FIG. 6 is an exploded view of the trip block of FIG. 1 in an alternate configuration;

FIG. 7 is a further exploded view of the undeployed portion of FIG. 6;

FIG. 8 is a further exploded view of the undeployed portion of FIG. 7;

FIG. 9 is a perspective view of FIG. 1 after the lifting rope has been looped in;

FIG. 10 is a perspective view of the upper connector of FIG. 9 pressed to pull the trip block to open the hook opening;

FIG. 11 is a perspective view of the lanyard of FIG. 10 fully disengaged from the hook;

FIG. 12 is a view showing an effect of the application of the ship for catching shrimps and crabs of FIG. 1;

FIG. 13 is an enlarged view of portion I of FIG. 12;

fig. 14 is an enlarged view of a portion II in fig. 13.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 14, the crab pot hanging hook capable of automatically tripping of the embodiment includes a hanging member 1, a connecting portion 13 capable of being connected with a hanging rope 6 of a crab pot 7 is disposed at the bottom of the hanging member 1, a hook 11 capable of being hooked with a hanging rope 5 is disposed at the top of the hanging member 1, a tripping structure capable of automatically tripping the hanging rope 5 hooked in the hook 11 is further disposed on the hook 11, the tripping structure includes a tripping block 3 and an elastic mechanism 2, the front end of the tripping block 3 can axially rotate along the hook end portion of the hook 11, the tail end of the tripping block 3 is movably connected with the upper end of a push rod 20, the tail portion of the tripping block 3 can move up and down along a sliding rod 10 on the hanging member 1 as a limiting rail, the elastic mechanism 2 is disposed on the hanging member 1 below the hook 11, the lower end of the push rod 20 is connected with the elastic mechanism 2, the elastic mechanism 2 includes an upper connecting body 21, a lower connecting body 23 and two cylindrical springs 22, the pendant 1 is formed by bending metal strips, the hook 11 is formed by bending the upper end of the metal strips, the lower connecting body 23 is connected to the lower part of the left and right vertical metal strips formed by bending the metal strips, the upper connecting body 21 is positioned above the lower connecting body 23 and can penetrate the upper parts of the left and right vertical metal strips in a vertically sliding manner, the two cylindrical springs 22 are positioned between the upper connecting body 21 and the lower connecting body 23 and sleeved in the corresponding vertical metal strips in the left and right vertical metal strips, the upper ends of the two cylindrical springs 22 are respectively connected with the corresponding bottom surfaces of the upper connecting body 21, and the lower ends of the two cylindrical springs 22 are respectively connected with the corresponding top surfaces of the lower connecting body 23.

The upper connecting body 21 returns the tail end of the trip block 3 to the slide rod 10 higher than the height of the hook tip of the hook 11 without external force, when the lifting rope 5 is pulled by external force to automatically trip, the upper connecting body 21 drives the push rod 20 to move downwards when the clamping frame 8 is automatically clamped and the pulling force of the lifting rope 5 is greater than the return elastic force of the two cylindrical springs 22, meanwhile, the push rod 20 pulls the trip block 3 to enable the tail end of the trip block 3 to slide downwards along the slide rod 10, and when the tail end of the trip block 3 is at the hook tip position of the hook 11 to enable the bottom edge 31 of the trip block 3 to form an angle of sliding of the lifting rope 5, the lifting rope 5 in the hook 11 slides out of the hook 11 to be separated from the hook 11.

The upper connector 21 is a cylindrical body, the lower end of the push rod 20 is movably connected with the top of the cylindrical body, a cylindrical through hole 210 capable of penetrating through a corresponding vertical metal strip is vertically arranged on the cylindrical body, two bottom surface cavities 211 capable of extending into the upper ends of the corresponding cylindrical springs 22 are arranged on the bottom surfaces of the cylindrical bodies corresponding to the cylindrical through hole 210, and the top ends of the two cylindrical springs 22 are respectively connected with the bottom surfaces of the corresponding bottom surface cavities 211. The top ends of the two cylindrical springs 22 are welded or bonded to the bottom surfaces of the corresponding bottom surface cavities 211, the lower connecting body 23 is a disk body or a strip body, and the bottom ends of the two cylindrical springs 22 are welded or bonded to the corresponding top surfaces of the lower connecting body 23. A waist-shaped groove 212 is arranged on the top surface of the column body, a rotating shaft 213 penetrating through the side wall of the waist-shaped groove is inserted into the side part of the column body, the lower end of the push rod 20 extends into the waist-shaped groove 212, a rotating sleeve 201 is arranged at the lower end of the push rod 20, and the rotating sleeve 201 can be rotatably sleeved on the rotating shaft 213. The upper connecting body 21 may be a circular disk body, preferably a cylindrical body in this embodiment, and the cylindrical body may be a cylinder, so that the surface of the cylinder is smooth and not easy to scratch a user, and the top angle and the bottom angle of the cylinder are rounded corners.

The hanger 1 is formed by bending an elastic metal strip, the hook 11 is formed by bending the upper end of the elastic metal strip, and the two cylindrical springs 22 are respectively sleeved on a left rod body 101 and a right rod body 102 of the elastic metal strip. The connecting part 13 of the elastic metal strip is an arc-shaped part which can reduce the abrasion of the hanging rope 6 of the traction crab pot 7. The arc part and the lower connector 23 enclose a connecting ring for connecting the hanging rope 6.

The hook 11 is provided with a sealing part which can automatically close the opening of the hook after the lifting rope 5 enters the hook cavity of the hook. The sealing part comprises a movable sealing block 4, a top barrel rod 24 fixedly and convexly arranged on the top surface of an upper connecting body 21, one end of a metal strip sequentially penetrates through a lower connecting body 23 from bottom to top, the inner cavities of the upper connecting body 21 and the top barrel rod 24 extend out of the top surface of the top barrel rod, the lower part of the movable sealing block 4 is connected with the end part of the metal strip positioned above the top barrel rod 24 in a rotating mode, the top barrel rod 24 can move up and down along with the upper connecting body 21, a torsion spring 44 capable of keeping the movable sealing block 4 to move outwards is arranged at the rotating position of the movable sealing block 4, an extending part 25 is upwards arranged at the top of the top barrel rod 24, and when the external force state does not exist, the extending part 25 is closely attached to the back part of the movable sealing block 4 through the torsion force of the torsion spring 44 and is. The movable sealing block 4 is provided with an arc-shaped notch 41 into which the lifting rope 5 can be conveniently clamped.

The trip block 3 is a groove movable plate with an opening at the top, the hook 11 can be arranged in a groove above the trip block 3, the front part of the trip block 3 is rotatably connected with the hook 11 through a rotating shaft pin 32, the tail part of the trip block 3 connects two groove side plates together through a rear shaft pin 33, the rear shaft pin 33 is positioned in front of the slide bar 10 and below the bottom surface of the hook 11, and is movably connected with the upper end of the push rod 20 on the rear shaft pin 33 positioned below the bottom surface of the hook 11, or the trip block 3 has two trip blocks, the two trip blocks 3 are symmetrically clamped on two side surfaces of the hook 11, the front part of the trip block 3 is rotatably connected with the hook 11 through the rotating shaft pin 32, the tail part of the trip block 3 connects the two trip blocks 3 together through the rear shaft pin 33, the rear shaft pin 33 is positioned in front of the slide bar 10 and below the bottom surface of the hook 11, the rear shaft pin 33 is movably connected with the upper, the sliding rod 10 is a metal strip of the shank section of the pendant 1, and the concave cavity at the tail part of the trip block 3 can be clamped on the metal strip of the shank section in a vertically sliding manner.

The lower connecting body can be a disk or a strip, the through holes 231 of the two metal strips on the lower connecting body are oblique through holes capable of buckling the lower connecting body 23 in the metal strips above the arc-shaped portion, and the distance between the center connecting lines of the two top surface holes on the top surface of the lower connecting body 23 of the two oblique through holes is greater than the distance between the center connecting lines of the two bottom surface holes on the bottom surface of the lower connecting body 23. The lower connecting body 21 may also be welded directly to the metal strip.

The working principle is as follows:

firstly, connecting a connecting part at the lower part of a crab pot hanging hook with a hanging rope 6 of a crab pot 7;

secondly, opening the hook 11 according to the movable sealing block 4, enabling the bottom of the lifting rope 5 to enter the inner cavity of the hook 11 of the crab pot hanging hook from the opening of the hook 11, and then connecting the upper end of the lifting rope 5 with the main cable 9, so that each crab pot 7 is fixedly hung on the main cable 9 at intervals through the respective crab pot hanging hook;

thirdly, the shrimp and crab catching boat sails on the sea surface and gradually releases the main mooring rope 9, and the crab pot 7 is completely sunk into the sea water to carry out shrimp and crab catching operation;

fourthly, after the shrimp and crab catching operation is finished, the shrimp and crab catching boat gradually winds and retracts the main cable 9, the main cable 9 passes through the clamping frame 8 which is in a portal frame shape above the boat body, the lifting rope 5 sequentially passes through the clamping groove 81 in the clamping frame 8, because the transverse width of the upper connecting body 21 is larger than the transverse width of the clamping groove 81, when the upper connecting body 21 of the crab pot hanging hook reaches the clamping frame 8, the upper connecting body 21 is blocked outside the clamping frame 8, the main cable 9 continuously passes through the clamping groove 81, the upper connecting body 21 obtains external force to compress the upper connecting body 21, the push rod 20 on the upper connecting body 21 moves downwards to pull the tail part of the tripping block, the tail part of the tripping block 3 swings downwards by taking the hook tip of the hook 11 as the center, meanwhile, the top cylinder rod 24 moves downwards along with the upper connecting body 21 to separate the top surface of the top cylinder rod 21 from the tripping block 3, at the moment, the movable sealing block 4 loses the supporting force of the tripping block 3 and then passes through the outward torsion force of, the movable sealing block 4 is enabled to rotate outwards, the top of the movable sealing block 4 is separated from the hook tip of the hook 11 to form an opening of the hook 11, when the pulling force of the lifting rope 5 is continuously increased, the tail end of the movable trip block is enabled to be at the hook tip position, and the bottom edge 31 of the movable trip block 4 forms an angle that the lifting rope 5 slides out, the lifting rope 5 in the hook 11 slides out of the opening of the hook 11 to be separated from the hook 11, and the crab pot 7 automatically falls into the crab pot due to gravity.

The setting of card frame 8 is in the front portion of hull support, the top of card frame 8 is fixed mutually through the top of connecting horizontal pole with the hull support, is provided with the relative hull support pivoted cylinder of ability on the upper portion of hull support, and the one end of total cable 9 is connected with the drive roller that can convolute total hawser 9 and release total hawser 9, and the other end of total cable 9 stretches into in the ocean backward through the cylinder change.

Claims

1. The crab pot hanging hook capable of automatically tripping comprises a hanging piece (1), wherein a connecting part (13) capable of being connected with a hanging rope (6) of a crab pot (7) is arranged at the bottom of the hanging piece (1), a hook (11) capable of being buckled with a hanging rope (5) is arranged at the top of the hanging piece (1), a tripping structure capable of automatically tripping the hanging rope (5) buckled in the hook (11) is further arranged on the hook (11), the tripping structure comprises a tripping block (3) and an elastic mechanism (2), the front end of the tripping block (3) can axially rotate along the hook end part of the hook (11), the tail end of the tripping block (3) is movably connected with the upper end of a push rod (20), the tail part of the tripping block (3) can move up and down along a sliding rod (10) on the hanging piece (1) as a limiting rail, and the elastic mechanism (2) is arranged on the hanging piece (1) below the hook (11), the lower extreme of push rod (20) is connected with elastic mechanism (2), its characterized in that: the elastic mechanism (2) comprises an upper connecting body (21), a lower connecting body (23) and two cylindrical springs (22), the hanging piece (1) is formed by bending a metal strip, the hook (11) is formed by bending the upper end of the metal strip, the lower connecting body (23) is connected with the lower parts of the left and right vertical metal strips bent by the metal strips, the upper connecting body (21) is positioned above the lower connecting body (23) and can be penetrated at the upper parts of the left and right vertical metal strips in a vertically sliding manner, the two cylindrical springs (22) are positioned between the upper connecting body (21) and the lower connecting body (23) and are sleeved in the corresponding vertical metal strip of the left vertical metal strip and the right vertical metal strip, the upper ends of the two cylindrical springs (22) are respectively connected with the corresponding bottom surfaces of the upper connecting body (21), and the lower ends of the two cylindrical springs (22) are respectively connected with the corresponding top surfaces of the lower connecting bodies (23).

2. The crab pot suspension hook of claim 1, wherein: the upper connecting body (21) is a cylindrical body, the lower end of the push rod (20) is movably connected with the top of the cylindrical body, a cylindrical through hole (210) capable of penetrating through a corresponding vertical metal strip is vertically arranged on the cylindrical body, two bottom surface cavities (211) capable of extending into the upper ends of the corresponding cylindrical springs (22) are arranged on the bottom surfaces of the cylindrical bodies corresponding to the cylindrical through hole (210), and the top ends of the two cylindrical springs (22) are respectively connected with the bottom surfaces of the corresponding bottom surface cavities (211).

3. The crab pot suspension hook of claim 2, wherein: the top ends of the two cylindrical springs (22) are respectively welded or bonded with the bottom surfaces of the corresponding bottom surface cavities (211), and the bottom ends of the two cylindrical springs (22) are respectively welded or bonded with the corresponding top surfaces of the lower connecting bodies (23).

4. The crab pot suspension hook of claim 2, wherein: the top surface of the column body is provided with a waist-shaped groove (212), the side part of the column body is inserted with a rotating shaft (213) penetrating through the side wall of the waist-shaped groove, the lower end of the push rod (20) extends into the waist-shaped groove (212), the lower end of the push rod (20) is provided with a rotating sleeve (201), and the rotating sleeve (201) can be rotatably sleeved on the rotating shaft (213).

5. A crab pot suspension hook as claimed in any one of claims 1 to 4, wherein: the hanger (1) is formed by bending an elastic metal strip, the hook (11) is formed by bending the upper end of the elastic metal strip, and the two cylindrical springs (22) are respectively sleeved on a left rod body (101) and a right rod body (102) of the elastic metal strip.

6. The crab pot suspension hook of claim 5, wherein: the connecting part (13) of the elastic metal strip is an arc-shaped part which can reduce the abrasion of the hanging rope (6) of the traction crab pot (7).

7. A crab pot suspension hook as claimed in any one of claims 1 to 4, wherein: the hook (11) is provided with a sealing part which can automatically close the opening of the hook after the lifting rope (5) enters the hook cavity of the hook.

8. The crab pot suspension hook of claim 7, wherein: the sealing part comprises a movable sealing block (4) and a cylinder ejection rod (24) fixedly and convexly arranged on the top surface of the upper connecting body (21), one end of the metal strip sequentially passes through the lower connecting body (23), the upper connecting body (21) and the inner cavity of the ejection cylinder rod (24) from bottom to top and extends out of the top surface of the ejection cylinder rod, the lower part of the movable sealing block (4) is rotatably connected with the end part of the metal strip positioned above the cylinder ejecting rod (24), and the cylinder ejection rod (24) can move up and down along the metal strip along with the up-and-down movement of the upper connecting body (21), a torsion spring (44) which can keep the outward rotation trend of the movable sealing block (4) is arranged at the rotating position of the movable sealing block (4), an extension part (25) is arranged on the top of the top cylinder rod (24) upwards, when no external force is applied, the extension part (25) is supported together by the torque force of the torsion spring (44) and clinging to the back of the movable sealing block (4).

9. The crab pot suspension hook of claim 8, wherein: the movable sealing block (4) is provided with an arc-shaped notch (41) which is convenient for the lifting rope (5) to be clamped in.

10. A crab pot suspension hook as claimed in any one of claims 1 to 4, wherein: the buckle release block (3) is a groove movable plate with an opening at the top, the hook (11) can be arranged in a groove above the buckle release block (3), the front part of the buckle release block (3) is rotationally connected with the hook (11) through a rotating shaft pin (32), the tail part of the buckle release block (3) is used for connecting two groove side plates together through a rear shaft pin (33), the rear shaft pin (33) is positioned at the lower position of the front part of the sliding rod (10) and the bottom surface of the hook (11) and is movably connected with the upper end of the push rod (20) on the rear shaft pin (33) positioned below the bottom surface of the hook (11), or the buckle release block (3) is provided with two blocks, the two buckle release blocks (3) are symmetrically clamped on the two side surfaces of the hook (11), the front part of the buckle release block (3) is rotationally connected with the hook (11) through the rotating shaft pin (32), and the tail part of the buckle release block (3) is used for connecting the two buckle release blocks (3) together through the rear shaft pin (33, the rear shaft pin (33) is located in the front of the sliding rod (10) and below the bottom surface of the hook (11), the rear shaft pin (33) is movably connected with the upper end of the push rod (20), the sliding rod (10) is a metal strip of a shank section of the pendant (1), and a concave cavity at the tail of the trip block (3) can be clamped on the metal strip of the shank section in a vertically sliding mode.