CN210987793U - Net for fishing fishes in medium and small rivers - Google Patents
Net for fishing fishes in medium and small rivers Download PDFInfo
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- CN210987793U CN210987793U CN201920977672.6U CN201920977672U CN210987793U CN 210987793 U CN210987793 U CN 210987793U CN 201920977672 U CN201920977672 U CN 201920977672U CN 210987793 U CN210987793 U CN 210987793U
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Abstract
The utility model belongs to the technical field of the fishing of artifical breeding in-process fish, concretely relates to netting gear that is used for middle and small river fish to catch. The net comprises a net, a sinker, a floater, a fixed rod, a rotating rod, an upper steel cable and a lower steel cable. The upper cable comprises a netting steel cable I and a floater steel cable, the netting steel cable I is fixed on the upper edge of the netting, and the floater steel cable fixes the floater; the lower steel cable comprises a netting steel cable II and a sinker steel cable, the netting steel cable II is fixed at the lower edge of the netting, and the sinker steel cable is fixed with the sinker; the fixed rod and the rotating rod are respectively fixed at two ends of the netting; the fixed rod dragging line and the rotating rod dragging line are arranged at two ends of the netting, and an included angle of 90-120 degrees is formed. The net is designed according to the difference of the actual width of the river channel, the size of water flow, the water depth, the flow speed and the habit of fishes, the operation is simple and convenient, and the number of operators is small; the operation speed is high, and the fishing success rate is high; the net has few net-hanging fishes, has little damage to parent fishes, and has a representative population structure for catching fishes; the fishing gear material has small water absorption and light weight, and is suitable for long-time operation for many times.
Description
Technical Field
The utility model belongs to the technical field of the fishing of artifical breeding in-process fish, concretely relates to netting gear that is used for middle and small river fish to catch.
Background
The nets for river fishing have various types such as a ground net, a drift net, a net for sprinkling and the like, but have some disadvantages according to the actual conditions such as the environment of the water area of a natural river channel, the water depth, the water flow and the like. Most of the geonets are designed to be suitable for rivers and lakes, but the operation is difficult under the condition of flowing water. The spunlace net is a net tool which is extremely easy to operate, but has certain selectivity on the size of the caught individuals. The net is suitable for small-range fishing and is suitable for operation in water areas with high fish school density.
In the artificial breeding process of Gymnocypris przewalskii, in order to obtain fertilized eggs subjected to high-quality experiments, a certain amount of parents are randomly collected in a natural river channel to artificially select mature individuals, and eggs are collected in a centralized manner and are subjected to artificial fertilization. Therefore, the artificial harvesting of parent fish is the first process and is also the key link of the whole artificial breeding work. Only by capturing the parent fish with strong physique and high maturity, the number of the artificially collected eggs can be ensured, thereby laying a foundation for artificial propagation and releasing. In order to ensure the catching quantity of each batch and prevent the death of parent fishes, the catching individuals have randomness and universality, which has higher requirements on catching nets and catching methods. In addition, the netting of the prior netting gear uses a cotton net or a nylon net, but the two have the following defects: although the operation of the cotton net on the fish body is minimum, the cotton net has high water absorption rate, heavy use and high operation strength, and is not suitable for long-time operation; the nylon net is solid and durable, has low water absorption rate, but is easy to hang fish fins, thereby causing injury and death of fish bodies.
In the range of 19 km downstream of the willow river, the main migration river of Gymnocypris przewalskii has more than one beaches suitable for being pulled into a net, and the river section below the public road bridge of the spring Ji river has more than 40 beaches suitable for being pulled into a net. For many years, the fishing net is continuously adjusted in terms of material, length, height and other configuration parameters by combining the influences of factors such as the size of river water flow, the change of river beds, the migration habit of naked carps and the like, so that the fishing net suitable for parent fish fishing in the Salix river and the Quanjihe river is formed.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model aims to provide a netting gear that is used for middle and small river fish to catch according to the difference of the actual width in river course, rivers size, depth of water and velocity of flow and fish habit.
The utility model adopts the technical proposal that:
a netting gear for fishing fishes in medium and small rivers comprises a netting 1, a sinker 2, a floater 3, a fixed rod 4, a rotating rod 5, an upper steel cable 6 and a lower rope cable 7, wherein the netting 1 is rectangular, the upper steel cable 6 comprises a netting one 61 and a floater steel cable 62, the netting one 61 is used for fixing the upper edge of the netting 1, the floater steel cable 62 is used for fixing the floater 3, and the netting one 61 and the floater steel cable 62 are fixed through a net wire; the lower steel cable 7 comprises a second netting steel cable 71 and a sinker steel cable 72, the second netting steel cable 71 is used for fixing the lower edge of the netting 1, the sinker steel cable 72 is used for fixing the sinker 2, and the second netting steel cable 71 and the sinker steel cable 72 are fixed through a net wire; the fixed rod 4 and the rotating rod 5 are respectively fixed at the left end and the right end of the netting 1; the netting steel cable I61 and the floater steel cable 62 are 3 meters longer than the netting 1; the second netting steel cable 71 and the first sinker steel cable 72 are 2 meters longer than the first netting 1, the first lengthened netting steel cable 61, the float steel cable 62, the second netting steel cable 71 and the first sinker steel cable 72 are respectively tied at two ends of the first netting 1 and then connected with the fixed rod steel cable 8 and the rotating rod steel cable 9, and the fixed rod steel cable 8 and the rotating rod steel cable 9 form an included angle of 90-120 degrees.
Further, the netting 1 is made of polyethylene, the length of the netting is 1.2-1.5 times of the river width, and the height of the netting is 1.5-2 times of the depth of an operation water area; the horizontal shrinkage coefficient is 0.8-0.85, and the vertical shrinkage coefficient is 0.75-0.8; the mesh size 2a is 3 cm.
Further, the sinkers 2 are fixed on the sinker steel cable 72 by 1 net wire every 30 cm; 1 floater 3 is fixed on a floater steel cable 62 at intervals of 50 cm and is fixed at two ends of a spherical floater by using net wires to prevent the position from changing after being stressed; the buoyancy ratio of the sinker 2 and the floater 3 is that the sinking force is: the buoyancy is 1-1.2: 1, wherein the buoyancy of the sinker also comprises the weight of the netting 1 and the steel cable in water, and the sinking force and the buoyancy are reasonably matched, so that the netting sinks at a proper position, and the lower bottom edge of the net basically clings to a river bed to advance, so that stones, impurities and the like are not easy to hang.
Furthermore, the sinker 2 is made of lead, the length of the sinker is ×, the width of the sinker is ×, the height of the sinker is 2.5 cm, × 1 cm and × 1 cm, the two ends of the sinker are provided with grooves, the sinker is conveniently fixed on a sinker steel cable 72, the volume of each sinker is 2.5 cubic centimeters, the weight of each sinker is 28 grams, the floater 3 is made of solid buoyancy material, the floater is hollow and spherical, and each floater volume is 2.7 × 102Cubic centimeters.
Further, the fixed rod 4 and the rotating rod 5 are both made of hard miscellaneous wood, the length of the fixed rod is 1.2-1.5 meters, and the diameter of the fixed rod is 6-8 centimeters; grooves with the depth of 0.5-0.8 cm are respectively arranged at the positions, 5 cm away from the rod head, of one ends of the fixed rod 4 and the rotating rod 5 and used for fixing the netting steel cable I61 and the floater steel cable 62; the other ends of the fixed rod 4 and the rotating rod 5 are respectively provided with a groove with the depth of 0.5-0.8 cm at a position 10 cm away from the rod head and used for fixing a netting steel cable II 71 and a sinker steel cable 72.
Further, the upper steel cable 6 and the lower steel cable 7 are made of polyethylene materials with the diameter of 0.8-1 cm and the length of 5-10 m.
Compare in current river fish fishing netting gear, the technical effect of the utility model is that:
the utility model discloses the netting gear is according to the difference of the actual width in river course, rivers size, depth of water and velocity of flow and fish habit and design. During specific operation, the operation is simple and convenient, and the field complex terrain can be dealt with; the number of required operators is small, 5-6 persons are generally required, and 3 persons can finish the operation when the number of the operators is small; the operation speed is high, the fishing success rate is high, the whole operation time is generally not more than 5 minutes, and in a natural river channel, even if fish flee quickly, the fishing effect is obvious; the netting gear is designed according to the size of the individual of the fishing group, the quantity of the net-hanging fish is small, the damage to parent fish is small, and the captured fish has representativeness of the population structure; the fishing gear material has small water absorption rate and light weight, and is suitable for repeated and long-time operation. Meanwhile, the net of the utility model has higher requirements on the riverway bottom during operation, the more the riverbed is flat, the less the particle size of the riverbed bottom is, and the better the fishing effect is; if impurities or gullies exist in the river channel, the river channel needs to be cleaned in time.
Drawings
FIG. 1 is a schematic structural view of the net for fishing small and medium river fishes of the present invention;
in the figure: 1. netting; 2. sinking; 3. a float; 4. fixing a rod; 5. a rotating rod; 6. an upper steel cable; 7. a lower steel cable; 61. a netting steel cable I; 62. a float steel cable; 71. a netting steel cable II; 72. a sinker steel cable; 8. fixing the rod warp; 9. the warp line of the rotating rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to the attached drawing 1, the utility model provides a netting gear for fishing fish in medium and small rivers, which comprises a netting 1, a sinker 2, a floater 3, a fixed rod 4, a rotating rod 5, an upper steel cable 6 and a lower steel cable 7, wherein the netting 1 is rectangular, the upper steel cable 6 comprises a netting steel cable 61 and a floater steel cable 62, the netting steel cable 61 is used for fixing the upper edge of the netting 1, the floater steel cable 62 is used for fixing the floater 3, and the netting steel cable 61 and the floater steel cable 62 are fixed through a net wire; the lower steel cable 7 comprises a second netting steel cable 71 and a second sinker steel cable 72, the second netting steel cable 71 is used for fixing the lower edge of the netting 1, the second sinker steel cable 72 is used for fixing the sinker 2, and the second netting steel cable 71 and the second sinker steel cable 72 are fixed through a net wire; the fixed rod 4 and the rotating rod 5 are respectively fixed at the left end and the right end of the netting 1; the netting steel cable I61 and the floater steel cable 62 are 3 meters longer than the netting 1; the second netting steel rope 71 and the sinker steel rope 72 are 2 meters longer than the first netting 1, the first lengthened netting steel rope 61, the float steel rope 62, the second netting steel rope 71 and the sinker steel rope 72 are respectively tied at two ends of the first netting 1 and then connected with the fixed rod steel rope 8 and the rotating rod steel rope 9, and the fixed rod steel rope 8 and the rotating rod steel rope 9 form an included angle of 90-120 degrees.
Wherein, the netting 1 is made of polyethylene, the length is 1.2 to 1.5 times of the river width, and the height is 1.5 to 2 times of the depth of an operation water area; the horizontal shrinkage coefficient is 0.8-0.85, and the vertical shrinkage coefficient is 0.75-0.8; the mesh size 2a is 3 cm.
1 sinker 2 is fixed on the sinker steel cable 72 by a net wire every 30 cm; 1 floater 3 is fixed on the floater steel cable 62 at intervals of 50 cm and is fixed at two ends of the spherical floater by using net wires to prevent the position from changing after being stressed; the buoyancy ratio of the sinker 2 and the floater 3 is the sinking force: the buoyancy is 1-1.2: 1, wherein the buoyancy of the sinker also comprises the weight of the netting 1 and the steel cable in water, and the sinking force and the buoyancy are reasonably matched, so that the netting sinks at a proper position, and the lower bottom edge of the net basically clings to a river bed to advance, so that stones, impurities and the like are not easy to hang.
The float 3 is made of solid buoyancy material, is hollow and spherical, and is characterized in that the float 2 is a cuboid which is made of lead, has the length of ×, the width of × and the height of 2.5 cm × 1 cm × 1 cm, is provided with grooves at two ends and is convenient to be fixed on a steel rope 72 of the float, the volume of each float is 2.5 cm, the weight of each float is 28 g, and each float is made of solid buoyancy materialProduct 2.7 × 102Cubic centimeters.
The fixed rod 4 and the rotating rod 5 are both made of hard miscellaneous wood, the length is 1.2-1.5 m, and the diameter is 6-8 cm; grooves with the depth of 0.5-0.8 cm are respectively arranged at the positions, 5 cm away from the rod head, of one ends of the fixed rod 4 and the rotating rod 5 and used for fixing the netting steel cable I61 and the floater steel cable 62; the other ends of the fixed rod 4 and the rotating rod 5 are respectively provided with a groove with the depth of 0.5-0.8 cm at a position 10 cm away from the rod head and used for fixing a netting steel cable II 71 and a sinker steel cable 72.
The upper steel cable 6 and the lower steel cable 7 are made of polyethylene materials with the diameter of 0.8-1 cm and the length of 5-10 meters.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A netting gear for fishing fishes in medium and small rivers comprises a netting (1), a sinker (2), a floater (3), a fixed rod (4), a rotating rod (5), an upper rope (6) and a lower rope (7), and is characterized in that the netting (1) is rectangular, the upper rope (6) comprises a netting steel cable I (61) and a floater steel cable (62), the netting steel cable I (61) is used for fixing the upper edge of the netting (1), the floater steel cable (62) is used for fixing the floater (3), and the netting steel cable I (61) and the floater steel cable (62) are fixed through a net wire; the lower steel cable (7) comprises a second netting steel cable (71) and a sinker steel cable (72), the second netting steel cable (71) is used for fixing the lower edge of the netting (1), the sinker steel cable (72) is used for fixing the sinker (2), and the second netting steel cable (71) and the sinker steel cable (72) are fixed through a net wire; the fixed rod (4) and the rotating rod (5) are respectively fixed at the left end and the right end of the netting (1); the netting steel cable I (61) and the floater steel cable (62) are 3 meters longer than the netting (1); the second netting steel cable (71) and the sinker steel cable (72) are 2 meters longer than the netting (1), the first lengthened netting steel cable (61), the floater steel cable (62), the second netting steel cable (71) and the sinker steel cable (72) are connected with the fixed rod steel cable (8) and the rotating rod steel cable (9) after being tied at two ends of the netting (1) respectively, and an included angle of 90-120 degrees is formed between the fixed rod steel cable (8) and the rotating rod steel cable (9).
2. The netting gear for fishing fishes in medium and small rivers according to claim 1, wherein the netting (1) is made of polyethylene, the length of the netting gear is 1.2-1.5 times of the width of the river, and the height of the netting gear is 1.5-2 times of the depth of an operating water area; the horizontal shrinkage coefficient is 0.8-0.85, and the vertical shrinkage coefficient is 0.75-0.8; the mesh size 2a is 3 cm.
3. The netting gear for fish catching in medium and small rivers according to claim 1, wherein the sinker (2) is fixed with netting twine every 30 cm on the sinker cable (72) 1; 1 floater (3) is fixed on a floater steel cable (62) at intervals of 50 cm and is fixed at two ends of the spherical floater by using net wires; the buoyancy ratio of the sinker (2) and the floater (3) is that the sinking force is: the buoyancy is 1-1.2: 1, wherein the buoyancy of the sinker further comprises the weight of a netting (1) and a steel cable in water.
4. The net for fishing fishes in medium and small rivers according to claim 1, wherein the sinker (2) is made of lead, the length of the sinker (×) is × long, the height of the sinker is 2.5 cm, the height of the sinker is × 1 cm, the length of the cuboid is × 1 cm, the two ends of the cuboid are provided with grooves, the sinker is conveniently fixed on a sinker steel cable (72), the volume of each sinker is 2.5 cubic centimeters, the weight of the sinker is 28 grams, the floater (3) is made of solid buoyancy materials, the floater is hollow and spherical, and each floater volume is 2.7 × 102Cubic centimeters.
5. The netting gear for fishing fishes in medium and small rivers according to claim 1, wherein the fixed rod (4) and the rotating rod (5) are both made of hard miscellaneous trees, the length of the miscellaneous trees is 1.2-1.5 meters, and the diameter of the miscellaneous trees is 6-8 centimeters; grooves with the depth of 0.5-0.8 cm are respectively arranged at the positions, 5 cm away from the rod head, of one ends of the fixed rod (4) and the rotating rod (5) and used for fixing the netting steel cable I (61) and the floater steel cable (62); the other ends of the fixed rod (4) and the rotating rod (5) are respectively provided with a groove with the depth of 0.5-0.8 cm at a position 10 cm away from the rod head and used for fixing a netting steel cable II (71) and a sinker steel cable (72).
6. The netting gear for fish catching in medium and small rivers according to claim 1, wherein the upper and lower wires (6, 7) are made of polyethylene material with a diameter of 0.8-1 cm and a length of 5-10 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920977672.6U CN210987793U (en) | 2019-06-27 | 2019-06-27 | Net for fishing fishes in medium and small rivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920977672.6U CN210987793U (en) | 2019-06-27 | 2019-06-27 | Net for fishing fishes in medium and small rivers |
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| Publication Number | Publication Date |
|---|---|
| CN210987793U true CN210987793U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920977672.6U Active CN210987793U (en) | 2019-06-27 | 2019-06-27 | Net for fishing fishes in medium and small rivers |
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| CN (1) | CN210987793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367213A (en) * | 2019-06-27 | 2019-10-25 | 青海湖裸鲤救护中心(青海省鱼类原种良种场) | A kind of netting gear and its operating method for middle and small river fishes fishing |
-
2019
- 2019-06-27 CN CN201920977672.6U patent/CN210987793U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110367213A (en) * | 2019-06-27 | 2019-10-25 | 青海湖裸鲤救护中心(青海省鱼类原种良种场) | A kind of netting gear and its operating method for middle and small river fishes fishing |
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