CN210470717U - Device for catching shrimps and releasing crabs - Google Patents

Abstract

The utility model relates to a device for catching shrimps and releasing crabs, which consists of a ground cage, a collecting frame and a hanging rod component. The ground cage is a mesh cage and the tail part of the ground cage is provided with an opening. The top of the collecting frame is provided with an opening on the plane, and the opening of the net bag at the bottom of the tail cage is firmly tied. The suspender component consists of a straight rod and a connecting rod and is provided with a lifting rope. By the utility model discloses the structure can know, will collect the frame and hang up with the lifting rope, uses the lifting rope to hang up ground cage afterbody opening part and cage body department respectively, makes ground cage afterbody opening and collects frame open-top part and links up for the shrimp crab that ground cage was caught climbs into and collects the frame, and river crab can be hung upside down in this collection frame top and therefrom climbs out this moment, and the lobster then can't hang upside down the climbing and be stayed in the cylinder mould, untie collect frame cage bottom pocket alright take out the shrimp, thereby reach the purpose of staying the shrimp and remove the crab. The storage space of the collecting frame is not easy to extrude, the operation is simple and convenient, and the effect of keeping shrimps and crabs is good.

Description

Device for catching shrimps and releasing crabs

Technical Field

The utility model relates to an instrument that crab was put to shrimp, especially relate to a device that crab was put to shrimp belongs to the shrimp device field of catching.

Background

At present, the market of the shrimps and the crabs is thriving, the breeding of the river crabs and the lobsters is increased day by day, and the popularization progress is limited due to the 'fear' when the shrimp and crab mixed breeding mode is popularized, namely the lobsters are afraid of difficult catching and the river crabs are afraid of difficult protecting. No matter in a shrimp and crab mixed culture mode or a river crab main culture mode, when the density of lobsters in the pond is too high, the lobsters can be cohered to attack river crabs, so that the soft-shell river crabs which just exuviate can be 27538and the hard-shell river crabs can be injured, which can affect the yield and the quality of main varieties. In addition, the complete mixed collection of shrimps and crabs also brings certain inconvenience to manual picking. Therefore, the proper tools are adopted to timely catch the lobsters to become the core technology for successful polyculture of the lobsters and crabs.

The device is characterized in that the device is used for catching shrimps and releasing crabs, and a plastic thin plate and a circular ring are sleeved on the tail part of the existing ground cage to operate, so that the shrimps and the crabs are collected in a storage space at the tail part of the ground cage above the water surface. The ground cage is narrow in tail, so that the small storage space in the moving range is limited, when more lobsters exist, the lobsters are extruded, and the lobsters which cannot be on the market temporarily are easily damaged; especially in rainy days, the condition of anoxic dead shrimps is easily caused, and meanwhile, the tail space of the ground cage also has limitation on the quantity of the shrimps stored at one time. In addition, the existing structure which is sleeved at the tail of the ground cage and is only provided with the circular ring and the thin plate can not completely separate shrimps and crabs, except that river crabs are hung upside down to avoid the thin plate area or climb out of the net cage from the inclined side, the shrimps can also obliquely climb out of the net cage part except the thin plate sometimes, and the expected effect of catching the shrimps and releasing the crabs can not be achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of crab is put to shrimp catching through improving ordinary fishing tool, overcomes the defect of current instrument, has increased the collection frame device, solves the lobster and easily flees and the lobster extrusion injury that the storage space brought is dead with the dead problem of oxygen deficiency, reaches the purpose of catching lobster and not injuring river crab completely simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a device for catching shrimps and putting crabs comprises a suspender assembly, a collecting frame and a ground cage. Ground cage and collection frame hang through the jib subassembly, there are head opening and afterbody opening respectively at the both ends of ground cage, wherein, the afterbody opening of ground cage links up with the open-top of collecting the frame mutually, just collect the frame top and be the plane.

The utility model discloses a further improvement is, collect the frame for collecting the frame, collect the frame and be cylinder or cube, the space is great more to do benefit to the shrimp crab activity.

The utility model discloses a further improvement is, the jib subassembly comprises straight-bar and connecting rod, the straight-bar is vertical fixed, the connecting rod is fixed the top of straight-bar, ground cage all hangs with the collection frame on the connecting rod.

The utility model discloses a further improvement is, be equipped with at least one lifting hook on the connecting rod, it hangs respectively through an at least lifting rope to collect frame and ground cage on the lifting hook for whole device stable in structure suspends in aqueous.

The utility model discloses a further improvement is, collect the frame and be the cylinder, then collect the frame and hang through three the lifting rope is in on the lifting hook, three the bottom of lifting rope is equidistant respectively and is the circumference fixed collect the top surface circumference department of frame, its top is all fixed on the lifting hook, the smooth no arris shrimp crab of frame is collected to the cylinder does not have the injury and three lifting ropes are arranged and are formed stable structure, and the stable difficult turnover that hangs.

The utility model discloses a further improvement is, collect the frame and be the cube, then collect the frame through four the lifting rope hangs on the lifting hook, four the bottom of lifting rope is respectively in collect frame top four corners department, the top hang in on the lifting hook, the great shrimp and crab activity of being convenient for of frame storage space is collected to the cube reduces the extrusion range, and the lifting rope hangs more stable in the structure when the four corners department cage body suspends in the surface of water.

The utility model discloses a further improvement is, ground cage is the net texture cage, the afterbody opening department of ground cage struts with the lock ring, the lock ring bore is less than or equal to collect the open-top's of frame bore, ground cage afterbody open-ended design is more convenient for and collects the linking of frame open-top.

The utility model discloses a further improvement scheme is, the afterbody opening of ground cage with the cage body top of ground cage is respectively through one the lifting rope hangs on the lifting hook for ground cage afterbody opening can be perfectly hung in the top of collecting the frame, with the required structure of forming device.

The utility model discloses a further improvement scheme is, the afterbody opening slope of ground cage is placed and the lower part is located in collect the top opening of frame, can guarantee that the shrimp and crab falls into completely and collects in the frame and can't escape.

The utility model discloses a further improvement is, collect the frame bottom be equipped with collect the net bag at the bottom of the cage of frame intercommunication, the bottom opening of net bag is mobile at the bottom of the cage, can prick the jail and loosen, prick the jail and do storage space when catching the shrimp, untie just can convenient and fast's acquisition with the net bag opening when needs are collected.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a pair of device that crab was put to shrimp, only need ground cage, collection frame and straight-bar lifting rope alright operation, the collection frame capacity that plays the collection effect is great for shrimp and crab move about freely, when both reducing the shrimp to crab injury nature but increased storage capacity and collection facility than the mode of using ground cage collection again, especially when meeting bad weather, the shrimp and crab vigor in the collection frame is flourishing but casualty is less. And the structure of the collecting frame determines that the lobsters can not climb out of the cage completely, and meanwhile, the crabs which can not climb out of the cage can be carefully observed or accurately selected, so that the aim of leaving the shrimps in the cage and only putting the intact crabs to climb out is fulfilled.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a detailed view of the hook of the present invention.

Detailed Description

The present invention will be further clarified by the following detailed description, which is to be understood as being given by way of illustration only, and not by way of limitation, of the scope of the invention, which, after reading the present invention, is intended to fall within the scope of the appended claims, as modified by those skilled in the art in various equivalent forms.

The device for catching shrimps and putting crabs as shown in figures 1 and 2 comprises a suspender assembly, a cylindrical net cage and an open ground cage. The hanger rod component comprises a straight rod 1, a lifting hook 2, a triangular rod 3 and a lifting rope 4. Wherein the straight rod 1 is vertically fixed, the triangular rod 3 is connected at the top of the straight rod 1, the lifting hook 2 is arranged at the two corner tips of the triangular rod 3, one end of the lifting rope 4 is arranged on the lifting hook 2, and the other end is respectively connected with the ground cage 6 and the collecting frame 5. Collect frame 5 and be the cylinder mould, go up the disc and have circular open-top 501, the upper and lower disc respectively props up by a ring support, and the side disc is propped up by 6 supports, collects 5 bottoms of frame and is equipped with net bag 502 at the bottom of the cage, and net bag and collection frame 5 are linked together and have mobilizable bottom opening at the bottom of this cage, can prick firmly and loosen. The collecting frame 5 is hung on the lifting hook 2 through three lifting ropes 4, the bottom ends of the three lifting ropes are respectively fixed on the circumference of the top surface of the collecting frame 5 at equal intervals in a circumferential mode, and the top ends of the three lifting ropes are fixed on the lifting hook 2, so that the three lifting ropes are stably suspended on the water surface. The ground cage 6 is a soft net cage on the market, the opening 601 at the tail part is supported by a round support, and the caliber of the opening is smaller than or equal to the caliber of the top opening 501 of the collecting frame 5. The rear opening 601 of the ground cage 6 and the upper part of the cage body are respectively hung on the lifting hook 2 through a lifting rope 4, the rear opening 601 is connected with the top opening 501 of the collecting frame, the rear opening 601 is obliquely arranged, and the lower part of the rear opening is positioned in the top opening 501 of the collecting frame 5.

The utility model discloses a working method as follows: the straight rod 1 is inserted into sludge beside the culture pond to be fixed at the water bottom, the top of the straight rod is exposed out of the water surface, the lower half part of the collecting frame 5, particularly a cage bottom mesh bag 502 is bundled up and firmly arranged under the water, and the top opening 501 of the collecting frame 5 is positioned above the water surface. The rear opening 601 of the ground cage 6 is located above the water surface, and the lower half inlet is submerged. So that the lower part of the collecting frame 5 is immersed in water and the top opening 501 is above the water surface, the rear opening 601 of the ground cage 6 exposed out of the water surface is connected with the top opening 501 of the collecting frame 5, the ground cage is obliquely arranged and the lower part of the ground cage is positioned in the top opening 501 of the collecting frame 5. The shrimp and crab can climb into the shrimp catching ground cage 6 from the underwater inlet of the ground cage 6 when moving along the pond edge or eating the bait arranged in the cage, the ground cage 6 on the market has a reverse beard device at the inlet, the structure limits the shrimp and crab not to escape from the inlet, and the shrimp and crab can only climb to the tail direction of the cage along the arranged channel and fall into the collecting frame 5 from the top opening 501 of the collecting frame 5 connected with the tail opening 601 of the ground cage 6. In order to ensure the viability of the shrimps and crabs, the collection frame 5 is mostly placed under the water surface. Because the physiological structure and the habit difference of lobster and river crab, the river crab limb is powerful enough in climbing and is used for hanging upside down and crawling, the lobster then can't hang upside down and climb, consequently collect the open-top 501 department of frame 5 and hang above the surface of water, because of its top hangs upside down in empty and be the plane, the river crab can climb out the cage from the cylinder mould smoothly this moment and get back to the aquatic, thereby the lobster can't hang upside down in the cylinder mould top plane and stay in the cage, need only untie when collecting the cylinder mould end cylinder mould 502 opening ribbon of frame 5 bottoms collect alright.

Claims (10)

1. A device for catching shrimps and releasing crabs is characterized in that: comprises a suspender component, a collecting frame and a ground cage; ground cage (6) and collection frame (5) hang through the jib subassembly, there are head opening and afterbody opening (601) respectively at the both ends of ground cage (6), wherein, afterbody opening (601) of ground cage (6) link up with top opening (501) of collecting frame (5) mutually, just it is the plane to collect frame (5) top.

2. The device for catching and releasing crabs as claimed in claim 1, wherein: the collecting frame (5) is a sizing net cage, and the collecting frame is a cylinder or a cube.

3. The device for catching and releasing crabs as claimed in claim 1, wherein: the hanger rod assembly is composed of a straight rod (1) and a connecting rod (3), the straight rod is vertically fixed, the connecting rod is fixed to the top of the straight rod, and the ground cage (6) and the collecting frame (5) are hung on the connecting rod.

4. The device for catching and releasing crabs as claimed in claim 3, wherein: be equipped with at least one lifting hook (2) on the connecting rod, collect frame (5) and ground cage (6) and hang respectively through at least lifting rope (4) on lifting hook (2).

5. The device for catching and releasing crabs in accordance with claim 4, wherein: collect frame (5) and be the cylinder, then collect frame (5) through three lifting rope (4) hang on lifting hook (2), three the bottom of lifting rope (4) is equidistant circumference respectively and fixes the top surface circumference department of collecting frame (5), its top is all fixed on lifting hook (2).

6. The device for catching and releasing crabs in accordance with claim 4, wherein: the collecting frame (5) is a cube, the collecting frame (5) is hung on the lifting hook (2) through four lifting ropes (4), the bottom ends of the four lifting ropes (4) are tied at four corners of the top of the collecting frame (5), and the top end of the four lifting ropes is hung on the lifting hook (2).

7. The device for catching and releasing crabs as claimed in claim 1, wherein: the ground cage (6) is a mesh ground cage, a supporting ring is propped open at a tail opening (601) of the ground cage (6), and the caliber of the supporting ring is smaller than or equal to that of a top opening (501) of the collecting frame (5).

8. The device for catching and releasing crabs in claim 6, wherein: the tail opening (601) of the ground cage (6) and the upper part of the cage body of the ground cage (6) are respectively hung on the lifting hook (2) through the lifting rope (4).

9. The device for catching and releasing crabs as claimed in claim 7, wherein: the tail opening (601) of the ground cage (6) is obliquely arranged, and the lower part of the ground cage is positioned in the top opening of the collecting frame.

10. A device for catching and releasing crabs as claimed in any one of claims 1 to 9, wherein: the bottom of the collecting frame (5) is provided with a cage bottom mesh bag (502) communicated with the collecting frame, and an opening at the bottom of the cage bottom mesh bag (502) is movable and can be fastened and loosened.

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