阅读说明：本技术 一种蟹笼自动脱钩及回收装置 (A kind of crab pot is automatically-unhooked and recyclable device ) 是由 冯武卫 蒋猛 于 2019-09-30 设计创作，主要内容包括：本发明提供了一种蟹笼自动脱钩及回收装置,属于渔具设备技术领域。它解决了现有蟹笼不能自动化回收等技术问题。本回收装置包括安装架,安装架上设有振动箱和振动器,振动箱的上方设有定滑轮和脱钩块,安装架上设有驱动电机,脱钩块位于定滑轮的一侧且位于振动箱的正上方,蟹笼养殖的主绳上设有挂钩,蟹笼挂接在挂钩上且驱动电机带动主绳移动时能够在脱钩块的挤压下使蟹笼脱离挂钩；振动箱的两侧分别设有用于装螃蟹的小车一和用于装空的蟹笼的小车二,振动箱与小车一之间通过斜向设置的回收管道相连通,振动箱与小车二之间通过斜向设置的滑板相连接。本发明中的装置能够自动化回收蟹笼和螃蟹,使用方便,稳定高效。(The present invention provides a kind of crab pot is automatically-unhooked and recyclable device, belong to fishing gear equipment technical field.It, which solves existing crab pot, cannot automate the technical problems such as recycling.This recyclable device includes mounting rack, mounting rack is equipped with vibrating bin and vibrator, the top of vibrating bin is equipped with fixed pulley and unhook block, mounting rack is equipped with driving motor, unhook block is located at the side of fixed pulley and is located at the surface of vibrating bin, the main rope of crab pot cultivation is equipped with hook, and crab pot is articulated in when hook is upper and driving motor drives main rope mobile can make crab pot be detached from hook under the extruding of unhook block；The two sides of vibrating bin are respectively provided with the trolley one of dress crab and the trolley two for filling empty crab pot, are connected between vibrating bin and trolley one by angularly disposed recovery channel, are connected between vibrating bin and trolley two by angularly disposed slide plate.Device in the present invention can automate recycling crab pot and crab, easy to use, stability and high efficiency.)

1. a kind of crab pot is automatically-unhooked and recyclable device, including mounting rack (1), which is characterized in that the mounting rack (1) is equipped with The top of vibrating bin (2) and the vibrator (3) for being able to drive the vibrating bin (2) vibration, the vibrating bin (2) is equipped with fixed pulley (4) and unhook block (5), the unhook block (5) are two and relative spacing setting, and the mounting rack (1) is equipped with driving motor (6), crab pot (16) cultivation main rope (7) one end can sequentially pass through between two unhook blocks (5) and fixed pulley (4) and with The output axis connection of the driving motor (6), the unhook block (5) are located at the side of the fixed pulley (4) and are located at the vibration The main rope (7) of the surface of dynamic case (2), crab pot (16) cultivation is equipped with hook (8), and crab pot (16) is articulated in the hook (8) The upper and described driving motor (6) can make the crab pot under the extruding of the unhook block (5) when driving the main rope (7) mobile (16) it is detached from the hook (8)；The two sides of the vibrating bin (2) are respectively provided with the trolley one (9) of dress crab and for filling The trolley two (10) of empty crab pot (16) passes through angularly disposed recovery tube between the vibrating bin (2) and the trolley one (9) Road (11) is connected, and is connected between the vibrating bin (2) and the trolley two (10) by angularly disposed slide plate (12).

2. crab pot according to claim 1 is automatically-unhooked and recyclable device, which is characterized in that on the upside of the mounting rack (1) With installation crossbeam (1a), the fixed pulley (4) and unhook block (5) are installed in the bottom for installing crossbeam (1a), described Unhook block (5) is located at the side of the fixed pulley (4) and between the two every setting；The driving motor (6) is installed in the installation The bottom of frame (1) and the other side for being located at the fixed pulley (4)；Capstan winch is installed on the output shaft of the driving motor (6) (13)。

3. crab pot according to claim 2 is automatically-unhooked and recyclable device, which is characterized in that the vibrator (3) is fixed On the mounting rack (1), the vibration box is installed in the upper end of the vibrator (3), and the upper end of the vibration box, which has, opens One (21) of mouth, the side of the vibration box have two (22) of opening, and the slide plate (12) is oblique to be installed in the mounting rack (1) On, the upper end of the slide plate (12) is docked with two (22) of the opening, and the peace is stretched out in the lower end of the slide plate (12) obliquely Shelve (1) outside；The bottom of the vibration box offers through-hole, and the upper end of the recovery channel (11) is connected to each other with the through-hole, The mounting rack (1) is stretched out outside in the lower end of the recovery channel (11) obliquely.

4. crab pot according to claim 3 is automatically-unhooked and recyclable device, which is characterized in that the recovery channel (11) and Slide plate (12) is located at the two sides of the mounting rack (1), and the trolley one (9) and trolley two (10) are located at the mounting rack (1) two sides, the trolley one (9) and trolley two (10) bottom are equipped with idler wheel (14), the trolley one (9) and trolley two (10) opening three (15) is all had on the upside of, the trolley one (9) can be moved to below the lower end of the recovery channel (11), The trolley two (10) can be moved to below the lower end of the slide plate (12).

5. crab pot according to claim 1 or 2 or 3 or 4 is automatically-unhooked and recyclable device, which is characterized in that the crab pot (16) there is connecting rod (16a) on, be connected with branch line (17) on the connecting rod (16a), the outer end of the branch line (17) has Annular collar (17a)；The hook (8) includes link block (81) and sleeve (82), and the link block (81) and crab pot (16) are supported The main rope (7) grown is connected, and sliding is provided with locking bar (83) in the sleeve (82), the upper end of the locking bar (83) and the company It connects block (81) to be connected by drawstring (84), positioned at the inner end and the sleeve (82) of the locking bar (83) in the sleeve (82) Upper end between be equipped with compressed spring (85)；The side of the sleeve (82) has the connecting rod (86) being bent in an arc shape obliquely, institute The lower end for stating connecting rod (86), which is bent towards on the underface of the sleeve (82) and the end outer peripheral surface of the connecting rod (86), to be had vertically Through hole (86a), the annular collar (17a) is set on the connecting rod (86) and the locking bar (83) can be plugged in institute It states in through hole (86a).

6. crab pot according to claim 5 is automatically-unhooked and recyclable device, which is characterized in that the unhook block (5) is in length Strip, unhook block (5) lower end have the flange protruded inwardly, and the top of the link block (81) is in plane, the company The top for connecing block (81) is connected with main rope (7), the arc-shaped spherical surface in bottom of the link block (81)；The link block (81) Bottom connects the drawstring (84).

Technical field

The invention belongs to fishing gear technical fields, are related to a kind of recyclable device, and especially a kind of crab pot is automatically-unhooked and recycles Device.

Background technique

Crab is Decapoda short-tail time purpose crustacean, and there are many kinds of classes for crab, and most of crab class is edible, and crab shell is available To refine raw material of industry chitin, aminoglucose can also be obtained through refining.The crab young or adult can make bait and feed；For food in crab class Mainly there are Portunus trituberculatus Miers, Portunus pelagicus, mud crab and Eriocheir sinensis etc.；Blue crab meat is more, fertile, nutrition is rich Richness is a kind of main fished species of important economic crab and China's crab pot fishing operation fishing boat in China's Coastal Areas.Crab When cage fishing boat fishing operation, the cage ring section that unloads during crab pot pulls out relies primarily on manual type and completes；Every time in crab pot It rises and needs to unload 3000 or so crab pots when pulling out, unload cage quantity per minute at 26 or so, the probably heavy 2Kg of each crab pot, in crab Cage, which rises, to be pulled out link and needs 4 professional to unload cage personnel and alternate operation and could complete.Crab fishery boat probably plays cage daily and puts It cage operation 4 times, needs to link up with and break off relations 12000 times or so per capita, labor intensity of workers is very high, and crab pot ship catches phase master in addition Easily to make fisherman that the personal safety accidents such as maloperation caused by heatstroke and fatigue occur in summer, high temperature, high-intensitive labour. The previous crab fishery boat one-stop operation of mesh will withdraw 3000-4000 crab pot, and 22 crab pots or so only can be recycled per minute, because The labor intensity that this collects crab pot this work post is very big, and time-consuming, so cost is very high.And high-intensitive work is easy to make People's fatigue, in addition personnel are closer apart from ship side when work, it is easy to which fall into the sea accident.

For the safety for reducing cost, improving fish production, need to design it is a kind of can be automatically by crab pot from main rope On retract and the device that is recycled is artificial to replace.

China's patent (notification number: CN105908402A；The day for announcing: 2016-08-31) it discloses a kind of crab pot and automatically grabs Device, crab pot include upper ledge circle, lower frame ring and vertical bar, vertical bar along upper ledge circle circumferentially-spaced arrangement and connect upper ledge circle and lower frame Circle, grabbing device include grasping mechanism and drive upside down mechanism, drive upside down mechanism and connect with grasping mechanism and drive upside down machine Structure is able to drive grasping mechanism and moves up and down；Grasping mechanism includes pedestal, push plate, a horizontal driving units and multiple set of jaws Part, clip claw assembly are installed between pedestal and push plate, and all clip claw assemblies are all arranged along the circumferential uniform intervals of pedestal, wherein One clip claw assembly is fixedly connected with push plate, and remaining clip claw assembly is slidably connected with push plate, drives push plate by horizontal driving units Radial translation drives all clip claw assemblies radially to extend out the crawl that the upper ledge circle stretching of crab pot is realized to crab pot.

Structure is complicated for crab pot automatic grabbing device in above patent document, and manufacturing cost is high, and use is not convenient enough.Although Single crab pot no longer needs manually to open the lock of hook manually, but the structure design of crab pot hook is not convenient to use machine Electric equipment is carried out a large amount of retract of automation and is separated with crab pot, and production efficiency is influenced.

Summary of the invention

The present invention addresses the above problems in the prior art, provides that a kind of crab pot is automatically-unhooked and recyclable device, this The technical problems to be solved by the invention are: how to improve the convenience and the degree of automation that crab pot breaks off relations from main rope and improve crab The high efficiency of cage separation.

Object of the invention can be realized by the following technical scheme:

A kind of crab pot is automatically-unhooked and recyclable device, including mounting rack, which is characterized in that the mounting rack is equipped with vibration Case and the vibrator for being able to drive the vibrating bin vibration, the top of the vibrating bin is equipped with fixed pulley and unhook block, described de- Hooked scarf is two and relative spacing is arranged, and the mounting rack is equipped with driving motor, and main rope one end of crab pot cultivation can be successively Across two unhook blocks and fixed pulley and with the output axis connection of the driving motor, the unhook block is located at described The side of fixed pulley and the surface for being located at the vibrating bin, the main rope of crab pot cultivation are equipped with hook, and crab pot is articulated in described The crab pot can be made to be detached under the extruding of the unhook block on hook and when the driving motor drives the main rope mobile The hook；The two sides of the vibrating bin are respectively provided with the trolley one of dress crab and the trolley two for filling empty crab pot, It is connected between the vibrating bin and the trolley one by angularly disposed recovery channel, the vibrating bin and the trolley two Between be connected by angularly disposed slide plate.

It is articulated on main rope its working principles are as follows: several crab pots pass through hook, the corresponding hook of each crab pot, Many crab pots are intervally distributed on each main rope.When needing to recycle crab pot and crab, one end of main rope passes through two unhook blocks Between；Further around fixed pulley is crossed, capstan winch recycling is then driven by the rotation of driving motor with the output axis connection of driving motor Main rope；Hook and crab pot on main rope successively reach at unhook block, so that crab pot is detached from hook by the extruding of unhook block；Equipped with crab The crab pot of crab is fallen in vibrating bin, and vibrating bin constantly appropriateness vibration, crab under the action of vibrator come out from crab pot, is returned The diameter in closed tube road is greater than the size of crab and is much smaller than the size of crab pot, vibration box it is continuous vibrate under, crab is from recycling Pipeline enters in trolley one, realizes the centralized recovery of crab；And the volume of crab pot is larger, in continuous vibration and other crab pots It in the case where exclusion, is slided in trolley two from slide plate, realizes the centralized recovery of empty crab pot.

Crab pot in the present invention is automatically-unhooked and recyclable device using unhook block realizes being automatically separated for crab pot；And realize crab Crab and crab pot being automatically separated and dispensing, and overall structure is simple, and high degree of automation, cost is small, easy to operate, securely and reliably； The operation intensity for significantly reducing worker, improves operating efficiency.

Above-mentioned crab pot is automatically-unhooked and recyclable device in, there is installation crossbeam on the upside of the mounting rack, it is described to determine cunning Wheel and unhook block be installed in it is described installation crossbeam bottom, the unhook block be located at the side of the fixed pulley and between the two every Setting；The driving motor is installed in the bottom of the mounting rack and is located at the other side of the fixed pulley；The driving motor Output shaft on be installed with capstan winch.

Above-mentioned crab pot is automatically-unhooked and recyclable device in, the vibrator is installed on the mounting rack, the vibration Dynamic box is installed in the upper end of the vibrator, and the upper end of the vibration box has opening one, and the side of the vibration box, which has, opens Mouth two, the slide plate is oblique to be installed on the mounting rack, and the upper end of the slide plate is docked with the opening two, the slide plate Lower end is stretched out obliquely outside the mounting rack；The bottom of the vibration box offers through-hole, the upper end of the recovery channel and institute It states through-hole to be connected to each other, the lower end of the recovery channel is stretched out obliquely outside the mounting rack.The diameter of through-hole is greater than the ruler of crab Size that is very little and being much smaller than crab pot, in the case where vibrator drives the continuous vibration of vibration box, crab comes out from crab pot, subsequently into In through-hole, enter in trolley one from recovery channel, realizes the centralized recovery of crab；And the volume of crab pot is larger, is constantly shaking It is mobile to two sides of opening in the case that dynamic and other crab pots enter exclusion, it finally slides in trolley two, realizes empty from slide plate The centralized recovery of crab pot.This principle is similar to maize sheller.

Above-mentioned crab pot is automatically-unhooked and recyclable device in, the recovery channel and slide plate are located at the mounting rack Two sides, the trolley one and trolley two be located at the two sides of the mounting rack, and the trolley one and two bottom of trolley are equipped with rolling The upside of wheel, the trolley one and trolley two all has opening three, and the trolley one can be moved under the recovery channel End lower section, the trolley two can be moved to below the lower end of the slide plate.Centralized recovery in this way convenient for crab and crab pot is defeated It send.

Above-mentioned crab pot is automatically-unhooked and recyclable device in, there is connecting rod on the crab pot, connect in the connecting rod It is connected to branch line, the outer end of the branch line has annular collar；The hook includes link block and sleeve, the link block and crab pot The main rope of cultivation is connected, and sliding is provided with locking bar in the sleeve, and the upper end of the locking bar and the link block pass through drawstring It is connected, is equipped with compressed spring in the sleeve between the inner end of the locking bar and the upper end of the sleeve；The sleeve Side there is the connecting rod that is bent in an arc shape obliquely, the lower end of the connecting rod bends towards the underface of the sleeve and the connecting rod There is vertical through hole, the annular collar is set on the connecting rod and the locking bar can be plugged on the end outer peripheral surface In the through hole.

Above-mentioned crab pot is automatically-unhooked and recyclable device in, the unhook block is in long strip, unhook block lower end tool There is the flange protruded inwardly, the top of the link block is in plane, and the top of the link block is connected with main rope, the company Connect the arc-shaped spherical surface in bottom of block；The bottom of the link block connects the drawstring.The distance between two unhook blocks, which are greater than, to be connected It connects the lateral dimension of block and is less than the lateral dimension of crab pot, crab pot cannot be by the gap between two unhook blocks, and main rope moves Shi Ladong link block, the elastic force that link block pulls drawstring that locking bar is made to overcome compressed spring are shunk to sleeve inner, and locking bar is from even Extraction in the through hole of bar, is detached from connecting rod, and annular collar can be detached from connecting rod from the lower end of connecting rod at this time, to keep crab pot de- From hook.

The structure design of this hook is conducive to carry out to automate using electromechanical equipment to retract crab pot；Hook is using spring and lock The close structure of bar combines, and achievees the purpose that lock crab pot so that locking bar and connecting rod precision combine；It is convenient and reliable, it is safe and efficient.

Compared with prior art, the crab pot in the present invention is automatically-unhooked and recyclable device has the advantage that

1, the structure design of this hook is conducive to carry out to automate using electromechanical equipment to retract crab pot；Hook using spring with The close structure of locking bar combines, and achievees the purpose that lock crab pot so that locking bar and connecting rod precision combine；Convenient and reliable, safety is high Effect.

2, the crab pot in the technical program is automatically-unhooked and recyclable device using unhook block realizes being automatically separated for crab pot；And Realize being automatically separated and dispensing for crab and crab pot, overall structure is simple, and high degree of automation, cost is small, easy to operate, safety Reliably；The operation intensity for significantly reducing worker, improves operating efficiency.

Detailed description of the invention

Fig. 1 is that this crab pot is automatically-unhooked and the schematic perspective view of recyclable device.

Fig. 2 is the attachment structure schematic diagram of crab pot and hook.

In figure, 1, mounting rack；1a, installation crossbeam；2, vibrating bin；21, opening one；22, opening two；3, vibrator；4, fixed Pulley；5, unhook block；6, driving motor；7, main rope；8, it links up with；81, link block；82, sleeve；83, locking bar；84, drawstring；85, Compressed spring；86, connecting rod；86a, through hole；9, trolley one；10, trolley two；11, recovery channel；12, slide plate；13, capstan winch； 14, idler wheel；15, opening three；16, crab pot；16a, connecting rod；17, branch line；17a, annular collar.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

As depicted in figs. 1 and 2, this crab pot is automatically-unhooked and recyclable device includes mounting rack 1, and mounting rack 1 is equipped with vibration The top of case 2 and the vibrator 3 for being able to drive the vibration of vibrating bin 2, vibrating bin 2 is equipped with fixed pulley 4 and unhook block 5, and unhook block 5 is Two and relative spacing setting, mounting rack 1 are equipped with driving motor 6, and 7 one end of main rope that crab pot 16 cultivates can sequentially pass through two Between a unhook block 5 and fixed pulley 4 and the output axis connection with driving motor 6, unhook block 5 are located at the side of fixed pulley 4 and position In the surface of vibrating bin 2, the main rope 7 that crab pot 16 cultivates is equipped with hook 8, and crab pot 16 is articulated on hook 8 and driving motor 6 Crab pot 16 can be made to be detached from hook 8 under the extruding of unhook block 5 when driving main rope 7 mobile；The two sides of vibrating bin 2 are respectively equipped with use In the trolley 1 of dress crab and the trolley 2 10 of the crab pot 16 for filling sky, set between vibrating bin 2 and trolley 1 by oblique The recovery channel 11 set is connected, and is connected between vibrating bin 2 and trolley 2 10 by angularly disposed slide plate 12.

As shown in Fig. 2, having connecting rod 16a on crab pot 16, branch line 17, the outer end of branch line 17 are connected on connecting rod 16a With annular collar 17a；Hook 8 includes link block 81 and sleeve 82, and link block 81 is connected with the main rope 7 that crab pot 16 cultivates, Sliding is provided with locking bar 83 in sleeve 82, and the upper end of locking bar 83 is connected by drawstring 84 with link block 81, is located in sleeve 82 Compressed spring 85 is equipped between the inner end of locking bar 83 and the upper end of sleeve 82；The side of sleeve 82 has to be bent in an arc shape obliquely Connecting rod 86, the lower end of connecting rod 86, which is bent towards, has vertical through hole on the end outer peripheral surface of the underface of sleeve 82 and connecting rod 86 86a, annular collar 17a are set on connecting rod 86 and locking bar 83 can be plugged in through hole 86a；Unhook block 5 is in long strip, takes off 5 lower end of hooked scarf has the flange protruded inwardly, and the top of link block 81 is in plane, and the top of link block 81 is connected with main rope 7 It connects, the arc-shaped spherical surface in the bottom of link block 81；The bottom connection stay cord 84 of link block 81；The distance between two unhook blocks 5 are big In link block 81 lateral dimension and be less than the lateral dimension of crab pot 16, crab pot 16 cannot be by between two unhook blocks 5 Gap.

Several crab pots 16 are articulated on main rope 7 by hook 8, the corresponding hook 8 of each crab pot 16, each main rope Many crab pots 16 are intervally distributed on 7.When needing to recycle crab pot 16 and crab, one end of main rope 7 pass through two unhook blocks 5 it Between；Further around fixed pulley 4 is crossed, then capstan winch 13 is driven to return by the rotation of driving motor 6 with the output axis connection of driving motor 6 Receive main rope 7；Hook 8 and crab pot 16 on main rope 7 successively reach at unhook block 5, and main rope 7 pulls on link block 81, link block 81 pulling drawstrings 84 make locking bar 83 overcome the elastic force of compressed spring 85, and to 82 internal contraction of sleeve, locking bar 83 is from connecting rod 86 Extraction in through hole 86a, is detached from connecting rod 86, and annular collar 17a can be detached from connecting rod 86 from the lower end of connecting rod 86 at this time, thus Crab pot 16 is set to be detached from hook 8；Crab pot 16 equipped with crab is fallen in vibrating bin 2, vibrating bin 2 under the action of vibrator 3 not Appropriateness of breaking vibration, crab come out from crab pot 16, and the diameter of recovery channel 11 is greater than the size of crab and is much smaller than crab pot 16 Size, under the continuous vibration of vibration box, crab enters in trolley 1 from recovery channel 11, realizes the centralized recovery of crab；And The volume of crab pot 16 is larger, in the case where continuous vibration and other crab pots 16 enter exclusion, slides to trolley from slide plate 12 In 2 10, the centralized recovery of empty crab pot 16 is realized.

Crab pot in the present embodiment is automatically-unhooked and recyclable device using unhook block 5 realizes being automatically separated for crab pot 16；And Realize being automatically separated and dispensing for crab and crab pot 16, overall structure is simple, and high degree of automation, cost is small, easy to operate, peace It is complete reliable；The operation intensity for significantly reducing worker, improves operating efficiency.

Further, as shown in Figure 1, there is installation crossbeam 1a, fixed pulley 4 and unhook block 5 are installed on the upside of mounting rack 1 The bottom of crossbeam 1a is installed, unhook block 5 is located at the side of fixed pulley 4 and between the two every setting；Driving motor 6 is installed in mounting rack 1 bottom and the other side for being located at fixed pulley 4；Capstan winch 13 is installed on the output shaft of driving motor 6；Vibrator 3 is installed in peace It shelves on 1, vibration box is installed in the upper end of vibrator 3, and the upper end of vibration box has opening 1, and the side of vibration box, which has, opens Mouth 2 22, slide plate 12 is oblique to be installed on mounting rack 1, and the upper end of slide plate 12 is docked with opening 2 22, and the lower end of slide plate 12 is oblique Outside lower stretching mounting rack 1；The bottom of vibration box offers through-hole, and upper end and the through-hole of recovery channel 11 are connected to each other, recovery channel 11 lower end is stretched out obliquely outside mounting rack 1；Recovery channel 11 and slide plate 12 are located at the two sides of mounting rack 1, one 9 He of trolley Trolley 2 10 is located at the two sides of mounting rack 1, and trolley 1 and 2 10 bottom of trolley are equipped with idler wheel 14, trolley 1 and trolley 2 10 Upside all have opening 3 15, trolley 1 can be moved to below the lower end of recovery channel 11, and trolley 2 10 can be moved to Below the lower end of slide plate 12.The diameter of through-hole be greater than crab size and be much smaller than crab pot 16 size, vibrator 3 drive shake Under the continuous vibration of dynamic box, crab comes out from crab pot 16, subsequently into through-hole, enters in trolley 1 from recovery channel 11, Realize the centralized recovery of crab；And the volume of crab pot 16 is larger, enters the feelings of exclusion in continuous vibration and other crab pots 16 It is mobile to 2 22 sides of opening under condition, it is finally slided in trolley 2 10 from slide plate 12, realizes the centralized recovery of empty crab pot 16.This Principle is similar to maize sheller.

Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Although 1, mounting rack is used more herein；1a, installation crossbeam；2, vibrating bin；21, opening one；22, it is open Two；3, vibrator；4, fixed pulley；5, unhook block；6, driving motor；7, main rope；8, it links up with；81, link block；82, sleeve；83, Locking bar；84, drawstring；85, compressed spring；86, connecting rod；86a, through hole；9, trolley one；10, trolley two；11, recovery channel； 12, slide plate；13, capstan winch；14, idler wheel；15, opening three；16, crab pot；16a, connecting rod；17, branch line；The arts such as 17a, annular collar Language, but it does not exclude the possibility of using other terms.The use of these items is only for be more convenient to describe and explain this The essence of invention；Being construed as any additional limitation is disagreed with spirit of that invention.