CN212753816U

CN212753816U - Torrent shoal type river roe collection system

Info

Publication number: CN212753816U
Application number: CN202020979493.9U
Authority: CN
Inventors: 邵科; 李伟涛; 阙延福; 熊美华; 徐念; 胡兴坤
Original assignee: Institute Of Water Engineering Ecology Chinese Academy Of Sciences
Current assignee: Institute Of Water Engineering Ecology Chinese Academy Of Sciences; Institute of Hydroecology MWR and CAS
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-03-23
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a torrent shoal type river roe collection system, including anchoring device, arc screen frame, dictyosome and collection ovum case, anchoring device passes through the haulage rope and is connected with the arc screen frame, and the arc screen frame sets up in the entry end of dictyosome, is equipped with the intercommunicating pore on the collection ovum case, and the exit end of dictyosome is connected with the intercommunicating pore of collection ovum case. The device has the advantages of simple structure, free disassembly, portability, realization of fish egg collection in the river, small vertical height of the arc-shaped net frame and particular suitability for fish egg collection in the torrent shoal type river.

Description

Torrent shoal type river roe collection system

Technical Field

The utility model relates to an aquatic ecological protection technical field, concretely relates to torrent shoal type river roe collection system.

Background

The fish early resource survey is a special resource survey for fishes in an early life history stage, mainly researches the change rule of fish resource quantity, calculates the number of breeding groups and predicts the supplement quantity, and is one of important means for the research of fish ecology and fishery biology. The research on the early fish resource investigation can be carried out, the number of breeding groups and the position of a fish spawning site can be presumed, a large amount of basic data can be obtained, and scientific basis is provided for fish resource assessment, development and utilization and protection. Since spawning investigation of four major Chinese carps in Yangtze river begins in the end of the last 50 th century in China, the common investigation nets mainly include jiang net, conical net and spindle-shaped net, wherein jiang net is most widely used. In recent years, along with the development of national hydroelectric engineering construction, the fish resource investigation requirement and range are rapidly expanded, the investigation of river ecology is diversified and complicated, the fish early resource investigation is carried out on a rush-flow shoal river with inconvenient traffic, the original net tool suitable for a slow flow area of a big river has a plurality of inconveniences in actual use, the inconvenience is not only shown in that the net mouth is too high and is easy to touch a river bed, but also the ovum collecting box is overturned and sunk due to high water flow speed and complex water regime. In order to solve the actual demand, a device suitable for collecting fish eggs of a rapid stream shoal type river is urgently needed.

Disclosure of Invention

The to-be-solved technical problem of the utility model is, to the above-mentioned defect that prior art exists, provide a torrent shoal type river roe collection system, simple structure can freely dismantle, and portable realizes that roe gathers in the river, and arc net frame vertical height is little, is particularly useful for torrent shoal type river roe and gathers.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

the utility model provides a torrent shoal type river roe collection system, includes anchoring device, arc screen frame, dictyosome and collection ovum case, and anchoring device passes through the haulage rope and is connected with the arc screen frame, and the arc screen frame sets up in the entry end of dictyosome, is equipped with the intercommunicating pore on the collection ovum case, and the exit end of dictyosome is connected with the intercommunicating pore of collection ovum case.

According to the technical scheme, the arc-shaped net frame comprises the floating pipe and the gravity bent rod, the two ends of the gravity bent rod are connected with the two ends of the floating pipe, and the anchoring device is connected with the two ends of the floating pipe and the middle of the gravity bent pipe through the traction rope respectively.

According to the technical scheme, the two ends of the traction rope are respectively provided with the lock catch, the middle part of the gravity bent rod and the two ends of the floating pipe are respectively provided with the fixing ring, one end of the traction rope is connected with the middle part of the gravity bent rod and the fixing rings at the two ends of the floating pipe through the lock catches, and the other end of the traction rope is connected with the anchoring device.

According to the technical scheme, the floating pipe is a PVC pipe with two sealed ends, and the gravity bent rod is an arc-shaped reinforcing steel bar.

According to the technical scheme, the diameter of the PVC pipe is 6-10cm, the length of the PVC pipe is 100-150 cm, the diameter of the arc-shaped reinforcing steel bar is 3-5 mm, and the distance L between the bottom of the gravity bent rod and the floating pipe is 20-30 cm.

According to the technical scheme, the anchoring device comprises a four-claw anchor.

According to the technical scheme, the net body is integrally connected with the egg collecting box.

According to the technical scheme, the communication holes between the net body and the egg collecting box are circular holes with the diameter of 10-15 cm.

According to the technical scheme, the egg collecting box comprises a net cage with an opening on the top surface, the communicating holes are formed in the side surface of the net cage, the opening on the top surface of the net cage is connected with a net, and the net is provided with a closing rope.

According to the technical scheme, the net cage comprises 8 wood rods which are connected with each other to form a cuboid frame, the wood rods are sleeved with cloth belts, net surfaces are uniformly arranged on other surfaces of the cuboid frame except the top surface, and the top surface is connected with a net with a closing rope.

The utility model discloses following beneficial effect has:

1. the utility model discloses simple structure can freely dismantle, and portable realizes roe collection in the river, and arc net frame vertical height is little, is particularly useful for the collection of torrent shoal type river roe, solves the early resource investigation netting gear use problem of torrent shoal type river fish.

2. The combination of the floating pipe and the gravity bent rod enables the arc-shaped net frame to be vertical to the water surface under the action of water flow, so that fish eggs can be collected in a limited area as much as possible, the egg collection box controlled by the closing rope is convenient to open and close, and the loss of the fish eggs caused by the fact that the egg collection box is overturned and sunk is avoided.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the device for collecting fish eggs from a torrent shoal river of the present invention;

FIG. 2 is a schematic structural view of an arc-shaped frame in an embodiment of the present invention;

in the figure, 1-floating pipe, 2-arc steel bar, 3-net body, 4-intercommunicating pore, 5-hauling rope, 6-anchoring device, 7-net cage, 8-netting, 9-closing rope and 10-fixing ring.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1-2, the embodiment of the utility model provides an embodiment torrent shoal type river roe collection system, including anchoring device 6, arc-shaped net frame, dictyosome 3 and egg collecting box, anchoring device 6 is connected with arc-shaped net frame through haulage rope 5, arc-shaped net frame sets up in the entry end of dictyosome 3, the egg collecting box is equipped with intercommunicating pore 4, the exit end of dictyosome 3 is connected with intercommunicating pore 4 of egg collecting box; the anchoring device 6 is arranged at the upstream of the arc-shaped net frame, and the arc-shaped net frame is vertical to the water surface by utilizing the water flow effect.

Furthermore, the arc-shaped net frame comprises a floating pipe 1 and a gravity bent rod, two ends of the gravity bent rod are connected with two ends of the floating pipe 1 to form an arc-shaped closed loop, and an anchoring device 6 is respectively connected with two ends of the floating pipe 1 and the middle part of the gravity bent pipe through a traction rope 5; the floating pipe 1 provides buoyancy, and the gravity bent rod droops, thereby making the arc-shaped net frame perpendicular to the water surface under the action of water flow.

Furthermore, the both ends of haulage rope 5 all are equipped with the hasp, and the middle part of gravity knee and the both ends of floating pipe 1 all are equipped with solid fixed ring 10, and the one end of haulage rope 5 is passed through the hasp and is connected with solid fixed ring 10 on the arc screen frame, and the other end and the anchoring device 6 of haulage rope 5 are connected.

Further, a plurality of hauling ropes 5 are connected between the arc-shaped net frame and the anchoring device 6.

Furthermore, the number of the hauling ropes 5 is 3, and the anchoring devices 6 are respectively connected with 3 fixing rings 10 on the arc-shaped net frame through the hauling ropes 5.

Furthermore, the floating pipe 1 is a PVC pipe with two sealed ends, and the gravity bent rod is an arc-shaped steel bar 2.

Further, the diameter of the PVC pipe is 6-10cm, the length is 100-150 cm, the diameter of the arc-shaped reinforcing steel bar is 3-5 mm, and the distance L between the bottom of the gravity bent rod and the floating pipe is 20-30 cm.

Further, the diameter of the PVC pipe is 8cm, the length of the PVC pipe is 120cm, the diameter of the arc-shaped reinforcing steel bar 2 is 4mm, and the distance L between the bottom of the gravity bent rod and the floating pipe is 25 cm.

Further, the anchoring device 6 comprises a four-claw anchor; is used for being arranged at the bottom of the water body.

Further, the net body 3 is integrally connected with the egg collecting box.

Furthermore, the communication hole 4 between the net body 3 and the egg collecting box is a circular hole with the diameter of 10-15 cm.

Further, the communication hole 4 between the long net 8 and the egg collecting box is a circular hole with the diameter of 12 cm.

Furthermore, the egg collecting box comprises a net cage 7 with an opening on the top surface, the communication hole 4 is arranged on the side surface of the net cage 7, the opening on the top surface of the net cage 7 is connected with a netting 8, and the netting 8 is provided with a closing rope 9; the opening and closing of the net cage 7 are realized through the closing rope 9.

Further, the net cage 7 comprises 8 wood rods which are connected with each other to form a rectangular frame, cloth belts are sleeved outside the wood rods, net surfaces are uniformly distributed on the rectangular frame except the top surface, the top surface is connected with a net 8 with a closing rope 9, and the communication holes 4 are formed in the net surfaces at the side ends of the net cage 7; the 8 edges of the egg collecting box are provided with cloth belts which can be directly inserted into a wooden stick to fix the shape.

Furthermore, the netting 8 is cylindrical, an annular rope sleeve is arranged on the wall of the netting 8, one end of the closing rope 9 is provided with a pull ring, and the other end of the closing rope penetrates through the annular rope sleeve and penetrates out of the pull ring; when one end of the closing rope 9 is tightened, the netting 8 is driven to close through the annular rope sleeve to form a closed state.

Further, the net body 3 is in a long cylinder shape, the sectional area of the inlet end of the net body 3 is larger than that of the outlet end, and the sectional areas are sequentially reduced.

The above is only a preferred embodiment of the present invention, and the scope of the right of the present invention should not be limited by this, so that the equivalent changes made in the claims of the present invention still belong to the protection scope of the present invention.

Claims

1. The utility model provides a torrent shoal type river roe collection system, its characterized in that, includes anchoring device, arc screen frame, dictyosome and collection ovum case, and anchoring device passes through the haulage rope and is connected with the arc screen frame, and the arc screen frame sets up in the entry end of dictyosome, is equipped with the intercommunicating pore on the collection ovum case, and the exit end of dictyosome is connected with the intercommunicating pore of collection ovum case.

2. The torrent shoal type river roe collecting device of claim 1, wherein the arc-shaped net frame comprises a floating pipe and a gravity bent pipe, both ends of the gravity bent pipe are connected with both ends of the floating pipe, and the anchoring device is respectively connected with both ends of the floating pipe and the middle part of the gravity bent pipe through a traction rope.

3. The torrent shoal type river roe collecting device of claim 2, wherein both ends of the pulling rope are provided with a latch, the middle part of the gravity bent rod and both ends of the floating tube are provided with fixing rings, one end of the pulling rope is connected with the middle part of the gravity bent rod and the fixing rings at both ends of the floating tube through the latch, and the other end of the pulling rope is connected with the anchoring device.

4. The torrent shoal type river roe collecting device of claim 2, wherein the floating tube is a PVC tube sealed at both ends, and the gravity bent rod is an arc-shaped reinforcing bar.

5. The torrent shoal type river roe collection device of claim 4, wherein the PVC pipe has a diameter of 6-10cm and a length of 100-150 cm, the arc-shaped reinforcing steel bar has a diameter of 3-5 mm, and a distance L between the bottom of the gravity bent bar and the floating pipe is 20-30 cm.

6. The torrent shoal river roe collection device of claim 1, wherein the anchoring device is a four-claw anchor.

7. The device for collecting fish eggs from a river on a torrent shoal type as claimed in claim 1, wherein the net body is integrally connected with the egg collecting box.

8. The torrent shoal type river roe collection device of claim 1, wherein the communication holes between the net body and the egg collecting box are circular holes with a diameter of 10-15 cm.

9. The torrent shoal type river roe collecting device of claim 1, wherein the egg collecting box comprises a net cage with an open top surface, the communication hole is arranged on the side surface of the net cage, the open top surface of the net cage is connected with a netting, and the netting is provided with a closing rope.

10. The device for collecting fish eggs from a torrent shoal river as claimed in claim 9, wherein the net cage comprises 8 wooden sticks connected with each other to form a rectangular frame, the wooden sticks are covered with cloth tapes, the rectangular frame is provided with net surfaces on the other surfaces except the top surface, and the top surface is connected with a net with a closing rope.