6 results about "Snagging" patented technology

According to the technical scheme, the quantitative feeding device is characterized in that the quantitative feeding device comprises a buoyancy frame, a plurality of buoyancy barrels are fixedly installed on the bottom face of the buoyancy frame, a material barrel is fixedly installed in the buoyancy frame, and the outer circle wall face of the material barrel is fixedly sleeved with a fixing ring; the throwing assembly is arranged on the outer circle wall face of the material barrel and used for throwing baits for deep-sea breeding, the throwing assembly comprises a butt joint table, the butt joint table is arranged on the outer circle wall face of the fixing ring, and through the linkage rotation design of the fixing table and the butt joint table, the vertical height difference between the fixing table and the butt joint table caused by water level fluctuation is automatically compensated; it is ensured that a key butt joint part clamping column and a groove are always kept aligned on a space track, rigid butt joint obstacles caused by water level fluctuation are avoided, a cam-spring mechanism is driven through movement of a recovery steel rope, and the clamping column generates high-frequency micro-amplitude vibration.

The invention discloses an anti-collision and anti-hanging device for a hook group and a using method of the anti-collision and anti-hanging device. The invention belongs to the technical field of fishing tackles. Fishing is an exercise beneficial to physical and psychological health, fishing is also a challenging exercise, and a large amount of practical experience teaching needs to be flexibly applied. Bottom hanging is one of frequent difficulties in fishing movement, bottom hanging generally has three conditions: hook bottom hanging, hook group bottom hanging and hook group tangent by obstacles, and the bottom hanging risk can be reduced to a great extent. As is well known, fish schools often like places with structures and obstacles at the water bottom and can hide in the shade and avoid risks, the number of fish schools in other places is rare, many fishermen can choose places with structures and obstacles to fish, and the risk that hook sets are hung on the bottom is increasingly increased. The hook group anti-collision and anti-hanging device elaborately made of a light elastic material is connected to the rear end of the hook group, collides with an obstacle before the hook group during take-up and bounces off before the hook group is hung to the obstacle, the hook group at the front end is protected against instantaneous collision and wire cutting, and a sufficient gap is reserved for take-up.

This invention discloses an underwater protective structure and an underwater data cabin. The underwater protective structure includes a bracket, a protective frame, and a first connecting column. The bracket is used to install and support the underwater data cabin. The protective frame is installed above the bracket, and a grille is installed on the protective frame to protect against fishing net snagging and impacts from heavy objects. The bracket and the protective frame are connected by the first connecting column. One end of the first connecting column is fixedly connected to the protective frame, and the other end is fixedly connected to the bracket through a connecting structure. The connecting structure enables quick assembly and disassembly of the bracket and the protective frame, improving the assembly and disassembly efficiency of the underwater protective structure. The underwater protective structure proposed in this invention can effectively prevent fishing net snagging and impacts from heavy objects, which is beneficial to protecting the stability and safety of the underwater data cabin and extending its service life.

The invention discloses a multi-dimensional data-based fish passing facility optimization construction method and system, and belongs to the technical field of water conservancy projects and ecological protection, and the method comprises the steps: collecting and sorting multi-source data related to fish passing; combing key activity paths of fishes in different seasons and river reaches; identifying obstacle points influencing passing and calculating the passing level under the current condition; different facility construction options are constructed for the key dam, and the improvement degree of each option on the traffic level is analyzed; performing quantitative arrangement on the improvement degree of the traffic level of each dam, and performing comprehensive evaluation according to an ecological protection target; the most suitable facility construction combination is screened out; formulating a project implementation plan and a staged ecological monitoring plan; and evaluating a construction effect and adjusting a subsequent construction plan. By the adoption of the method, the secondary influence of the construction process on river ecology can be effectively reduced, it is ensured that all the construction steps can be implemented, checked and traced, and the engineering reliability of facility construction is improved.

This item is an auxiliary device that attaches to the end of artificial lures (lures, minnows, spoons, etc.) to prevent snagging, as shown in the reference diagram illustrating its use. This item prevents snagging by causing the hook to float upwards when the artificial lure hits the bottom. Furthermore, it moves alluringly without interfering with the movement of the artificial lure when reeling, and even when the artificial lure is not moving, it sways with the slightest water current to attract fish.