Artificial fish nest suitable for rapid rising and falling type viscous fish eggs floating in water body
Patent Information
- Application Number
- CN202420835078.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The floating sticky fish eggs in the rapidly fluctuating and falling water body cannot find the attachment place, resulting in the inability to hatch into juvenile fish normally.
A parallel artificial fish nest unit including fixed steel pipes, float barrels, iron rings and fixed ropes was designed. The float barrels and iron rings moved with the water fluctuation on the fixed steel pipes, and foam floats and plastics were distributed on the fixed ropes. Mesh and palm sheet matrix to increase the adhesion area of fish eggs.
It provides an adhesion and hatching site, ensuring the normal hatching of floating viscous fish eggs, and the structure can move with the fluctuation and fall of the water surface, enhancing the ability to resist wind and waves and water flow velocity.
Smart Images
Figure CN222264034U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water ecological protection, in particular to an artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies. Background Art
[0002] Rapidly fluctuating water bodies refer to natural waters where the water level periodically fluctuates rapidly, such as flood-type lakes, dam reservoirs, and river estuaries. This type of water body is rich in nutrient input and is a preferred place for fish to reproduce and thrive. It is also a common place for fish to spawn and reproduce. However, due to the continuous pressure of changes in natural conditions and human engineering, the naturally formed fish spawning habitats have been severely damaged, and the fish resources in these water bodies are showing a sharp decline. In particular, fish that lay floating sticky eggs, such as yellow catfish, wheatear fish, and redfin bream, are significantly affected by the rapid fluctuations in water levels. The reason for the decline in the amount of these fish resources in recent years is related to the fact that the floating sticky eggs cannot find a place to attach during their life history and cannot hatch normally into fry.
[0003] The Chinese invention patent application with publication number CN 117121856 A and application number 202311067273.3 discloses an artificial fish nest with adjustable depth. It includes a valve body floating on the water surface, which is constructed by staggered raft cross bars and raft longitudinal bars, so that fish of different sizes can spawn at different depths of the water surface. This application solves the impact of changes in the depth of the water body, but it is easily eroded by water flow during water flow, is not easy to use for a long time, and is very easy to deviate from a specific position and dock on the slow-water shore, thus failing to achieve the effect of fish spawning and attachment.
[0004] The Chinese invention patent with publication number CN 114617092 A and application number 202210217585.7 discloses a three-dimensional artificial fish nest that promotes the natural proliferation of fish that lay sticky eggs in the reservoir area. The patent uses steel pipes to build a set of three-dimensional fish nest frames, the frame layering device is attached with materials, and the frame is about 2 meters high. Although it can meet the requirements of changes with the rise and fall of water levels, the frame is complicated to make and is easily damaged by water waves. In addition, the height of about 2 meters is not convenient for ships to pass or other water operations.
[0005] The Chinese invention patent with publication number CN 114831057 A and application number 202210364980.8 discloses a method for artificially combining and constructing lake fish habitats. The patent takes into account the ecological environment needs of large water flow or large water level drop, and constructs an artificial floating island with artificial fish nests or bionic water plants, which is suitable for large open water surface fish to gather, survive and spawn. However, the production cost is high, and the economic cost is high when used on a large area.
[0006] The Chinese utility model patent with publication number CN 210841168 U and application number 201921499093.1 discloses an artificial fish nest for the proliferation of fish that lay sticky eggs in reservoirs. The patent greatly increases the number of fish eggs that adhere by increasing the specific surface area. However, it is easily affected by the high water flow rate and is susceptible to erosion.
[0007] The Chinese invention patent with publication number CN 115644109 A and application number 202210975122.7 discloses an artificial fish nest device and application for fish with sticky and sinking eggs. This patent is suitable for the protection of sticky and sinking fish eggs, but cannot be used for floating sticky eggs. Utility Model Content
[0008] Technical problem to be solved: In view of the technical problem in the prior art that sticky fish eggs floating in rapidly fluctuating water bodies cannot find a place to attach and cannot be normally hatched into young fish, the present invention provides an artificial fish nest suitable for sticky fish eggs floating in rapidly fluctuating water bodies, which can provide a place for adhesion and hatching for sticky fish eggs floating in rapidly fluctuating water bodies.
[0009] Technical solution: An artificial fish nest suitable for floating sticky fish eggs in a rapidly fluctuating water body, wherein the rapidly fluctuating water body comprises a soil layer and a water layer arranged thereon, wherein the artificial fish nest comprises a plurality of parallel groups of artificial fish nest units, wherein each group of artificial fish nest units comprises two fixing components, a fixing rope and a plurality of fish nest substrates, wherein the fixing rope is arranged between the two fixing components.
[0010] The fixed assembly includes a fixed steel pipe, a float bucket and an iron ring, wherein the bottom end of the fixed steel pipe is inserted into the soil layer, and the top end is higher than the water layer. The float bucket is a hollow cavity inside, and the hollow section passes through the fixed steel pipe. The iron ring passes through the fixed steel pipe and is arranged on the top end of the float bucket. The float bucket is used to hold up the iron ring. The float bucket and the iron ring move on the fixed steel pipe with the rise and fall of the water surface.
[0011] The fixing rope is arranged between the iron rings of the two fixing components;
[0012] The plurality of fish nest matrices are evenly distributed on the fixed rope, and a single fish nest matrix includes a foam float, a connecting rope, a plastic hard mesh and a palm sheet matrix. The foam float is sleeved on the fixed rope, the center of the plastic hard mesh is connected to the foam float through the connecting rope, and the palm sheet matrix is arranged on the edge of the plastic hard mesh.
[0013] Preferably, the fixed steel pipe is a hot-dip galvanized steel pipe, the soil layer includes a silt layer and a hard soil layer from top to bottom, the bottom end of the fixed steel pipe is inserted into the hard soil layer, and the burial depth is greater than 1 meter; the height of the top above the water layer is greater than the maximum water surface height of the rising water layer.
[0014] Preferably, the iron ring is a galvanized iron ring, and the float barrel is a foam float barrel.
[0015] Preferably, the single fish nest matrix also includes a sinking pendant, which is arranged in the center of the plastic hard mesh, one end of the connecting rope is connected to the sinking pendant, and the other end is connected to the foam float.
[0016] Preferably, the fixing rope is polyethylene or a steel wire rope.
[0017] Preferably, the single fish nest matrix further comprises a mesh outer frame, the mesh outer frame is arranged at the edge of the plastic hard mesh, and the palm sheet matrix is connected to the mesh outer frame.
[0018] Preferably, the mesh outer frame is an iron outer frame for fixing the plastic hard mesh.
[0019] Preferably, the plastic hard mesh is a triangular polyethylene mesh.
[0020] Preferably, the connection direction of the two fixing components is perpendicular to the water flow direction in the water body.
[0021] Preferably, each group of artificial fish nest units is at least 40 to 45 cm apart, and individual fish nest matrices are spaced 40 to 45 cm apart.
[0022] Beneficial effects: The artificial fish nest provided by the invention is suitable for floating sticky fish eggs in rapidly fluctuating water bodies, and can provide a place for the floating sticky fish eggs in rapidly fluctuating water bodies to adhere and hatch;
[0023] Through the combination of the float bucket, iron ring and fixed steel pipe, as well as the cooperation of the foam float on the fixed rope, the entire artificial fish nest can move with the rise and fall of the water surface;
[0024] By setting up the plastic hard mesh, the artificial matrix (palm leaf matrix) can be spread out in a plane and derived outward, which greatly increases the number of fish eggs that adhere. This solves the technical problem that floating sticky fish eggs in rapidly rising and falling water bodies cannot find a place to attach and cannot hatch into young fish normally. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the structure of the artificial fish nest of the utility model;
[0026] Figure 2 Schematic diagram of the structure of the fish nest matrix.
[0027] The numbers in the figure represent the following: 1. Fixed steel pipe; 2. Float barrel; 3. Iron ring; 4. Fixed rope; 5. Foam float; 6. Connecting rope; 7. Plastic hard mesh; 8. Sinking pendant; 9. Mesh frame; 10. Palm leaf matrix. DETAILED DESCRIPTION
[0028] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. Example 1
[0029] An artificial fish nest suitable for floating sticky fish eggs in a rapidly fluctuating water body, wherein the rapidly fluctuating water body comprises a soil layer and a water layer arranged thereon, see Figure 1 and 2 The artificial fish nest comprises a plurality of parallel artificial fish nest units, each of which comprises two fixing components, a fixing rope 4 and a plurality of fish nest matrices, wherein the fixing rope 4 is arranged between the two fixing components.
[0030] The fixed assembly includes a fixed steel pipe 1, a float bucket 2 and an iron ring 3, wherein the bottom end of the fixed steel pipe 1 is inserted into the soil layer, and the top end is higher than the water layer, the float bucket 2 is a hollow cavity inside, and the hollow section passes through the fixed steel pipe 1, the iron ring 3 passes through the fixed steel pipe 1 and is arranged at the top end of the float bucket 2, the float bucket 2 is used to hold up the iron ring 3, and the float bucket 2 and the iron ring 3 move on the fixed steel pipe 1 with the rise and fall of the water surface;
[0031] The fixing rope 4 is arranged between the iron rings 3 of the two fixing components;
[0032] The plurality of fish nest matrices are evenly distributed on the fixing rope 4. A single fish nest matrix includes a foam float 5, a connecting rope 6, a plastic hard mesh 7 and a palm sheet matrix 10. The foam float 5 is sleeved on the fixing rope 4. The center of the plastic hard mesh 7 is connected to the foam float 5 through the connecting rope 6. The palm sheet matrix 10 is arranged on the edge of the plastic hard mesh 7. Example 2
[0033] Same as Example 1, except that the fixed steel pipe 1 is a hot-dip galvanized steel pipe, the soil layer includes a silt layer and a hard soil layer from top to bottom, the bottom end of the fixed steel pipe 1 is inserted into the hard soil layer, and the burial depth is greater than 1 meter; the height of the top above the water layer is greater than the maximum water surface height of the water layer. In this embodiment, the fixed steel pipe 1 is 6 m long, 60 cm in diameter, and 4 mm thick. The lower part is vertically inserted into the lake soil, and the top of the upper part is about 2 m from the water surface. The maximum water surface of the water body should be lower than the height of the steel pipe leaking out of the water. The silt layer at the bottom of the water cannot play the role of fixing the steel pipe, and the silt steel pipe in this part must be penetrated. The hard soil layer at the bottom of the water can better fix the steel pipe, and the burial depth of the steel pipe in this layer is generally more than 1 meter.
[0034] Most of the existing technologies use bamboo or PVC pipes. The bamboo / PVC pipes have poor wind and wave resistance and are not easy to fix. The utility model is improved into a hot-dip galvanized steel pipe, which can significantly improve the ability to resist wind and waves and rapid water flow.
[0035] The float barrel 2 is a foam float barrel with a specification of 15 cm*20 cm. The float barrel 2 can hold up the galvanized iron ring on the upper part.
[0036] The iron ring 3 is a galvanized iron ring with an inner wall diameter of 80 cm and an outer diameter of 90 cm, and can move up and down the steel pipe with the rise and fall of the water surface.
[0037] The fixing rope 4 is a polyethylene rope, generally a multi-strand polyethylene rope with a diameter of 2 cm, which passes through and fixes the artificial fish nest connected to the foam float.
[0038] The foam float 5 is put on the fixed rope 4 and repeated once every 40-45 cm, so as to lift up the lower part of the artificial fish nest.
[0039] The connecting rope 6 is used to connect the foam float 5, the plastic hard mesh 7, and the sinking pendant 8.
[0040] The plastic hard mesh 7 is a triangular polyethylene mesh, which is used to expand the artificial matrix.
[0041] The single fish nest matrix also includes a sinking pendant 8, which is arranged at the center of the plastic hard mesh 7, one end of the connecting rope 6 is connected to the sinking pendant 8, and the other end is connected to the foam float 5. The sinking pendant 8 is used to sink the polyethylene mesh and the artificial matrix.
[0042] The single fish nest matrix further comprises a mesh outer frame 9, which is arranged at the edge of the plastic hard mesh 7, and the palm sheet matrix 10 is connected to the mesh outer frame 9. The palm sheet matrix is extended outward and spread out in a plane under the support of the triangular mesh.
[0043] The mesh outer frame 9 is an iron outer frame and is used to fix the plastic hard mesh 7 .
[0044] Each group of artificial fish nest units is at least 40~45cm apart, and the interval between individual fish nest matrices is 40~45cm.
[0045] The application method of artificial fish nest in rapidly rising and falling water bodies is as follows:
[0046] (1) Target water body survey and water quality monitoring. Select a suitable location for the target water body, which should have the following characteristics: spacious, far from the shore, and a swimming channel for fish. Collect water and test the water quality indicators specified in GB3838 Surface Water Environmental Quality Standard. The indicator values should meet Class III requirements, that is, suitable for fish proliferation needs.
[0047] (2) Fabrication of artificial fish nest units and installation in water bodies. Figure 1 and Figure 2 The key point when installing is to keep it perpendicular to the water flow direction.
[0048] (3) Maintenance and management of artificial fish nests. Regular inspection: Regularly inspect the fish nests, including appearance, structure, materials, etc., to promptly identify and solve problems. Regular cleaning: Regularly clean impurities and silt on the fish nest matrix to keep it clean and hygienic. Regular maintenance: Regularly repair and maintain the fish nest to ensure its normal operation and long-term use.
[0049] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned implementation modes, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned implementation modes, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation modes of the utility model.
Claims
1. An artificial fish nest suitable for floating sticky fish eggs in a rapidly fluctuating water body, the rapidly fluctuating water body comprising a soil layer and a water layer arranged thereon, characterized in that: The artificial fish nest comprises a plurality of parallel artificial fish nest units, each of which comprises two fixing components, a fixing rope (4) and a plurality of fish nest matrices, wherein the fixing rope (4) is arranged between the two fixing components. The fixed assembly comprises a fixed steel pipe (1), a floating ball barrel (2) and an iron ring (3), wherein the bottom end of the fixed steel pipe (1) is inserted into the soil layer, and the top end is higher than the water layer; the floating ball barrel (2) is a hollow cavity inside, and the hollow section passes through the fixed steel pipe (1); the iron ring (3) passes through the fixed steel pipe (1) and is arranged at the top end of the floating ball barrel (2); the floating ball barrel (2) is used to hold up the iron ring (3); the floating ball barrel (2) and the iron ring (3) move on the fixed steel pipe (1) with the rise and fall of the water surface; The fixing rope (4) is arranged between the iron rings (3) of the two fixing components; The plurality of fish nest matrices are evenly distributed on the fixing rope (4), and a single fish nest matrix comprises a foam float (5), a connecting rope (6), a plastic hard mesh (7) and a palm flake matrix (10). The foam float (5) is sleeved on the fixing rope (4), the center of the plastic hard mesh (7) is connected to the foam float (5) through the connecting rope (6), and the palm flake matrix (10) is arranged on the edge of the plastic hard mesh (7).
2. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The fixed steel pipe (1) is a hot-dip galvanized steel pipe. The soil layer includes a silt layer and a hard soil layer from top to bottom. The bottom end of the fixed steel pipe (1) is inserted into the hard soil layer with a burial depth greater than 1 meter. The height of the top end above the water layer is greater than the maximum water surface height of the rising water layer.
3. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The iron ring (3) is a galvanized iron ring, and the float barrel (2) is a foam float barrel.
4. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The single fish nest matrix also includes a sinking pendant (8), which is arranged at the center of the plastic hard mesh (7), one end of the connecting rope (6) is connected to the sinking pendant (8), and the other end is connected to the foam float (5).
5. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The fixing rope (4) is polyethylene or a steel wire rope.
6. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The single fish nest matrix further comprises a mesh outer frame (9), wherein the mesh outer frame (9) is arranged at the edge of the plastic hard mesh (7), and the palm leaf matrix (10) is connected to the mesh outer frame (9).
7. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 6, characterized in that: The mesh outer frame (9) is an iron outer frame and is used to fix the plastic hard mesh (7).
8. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The plastic hard mesh (7) is a triangular polyethylene mesh.
9. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: The connection direction of the two fixing components is perpendicular to the water flow direction in the water body.
10. The artificial fish nest suitable for floating sticky fish eggs in rapidly fluctuating water bodies according to claim 1, characterized in that: Each group of artificial fish nest units is at least 40 to 45 cm apart, and the interval between individual fish nest matrices is 40 to 45 cm.