Liftable benthic spawning board for ecological refuge of river in cold region

Abstract

The utility model provides a kind of cold region river ecological refuge liftable benthic egg-laying plate, including fixed column, the movable column is inserted in the fixed column, the outside of the fixed column is equipped with a plurality of through slots, the outside of the movable column is fixedly connected with a plurality of protruding pieces in through slot, the bottom end of the fixed column is fixedly connected with counterweight, the top end of the movable column is fixedly connected with main float ball.The utility model has the advantages that by setting fixed column, movable column, counterweight, main float ball, egg-laying plate, pull rope and vice float ball and other structures, the weight of counterweight and the buoyancy of main float ball are used to make the device stand in water area.Vice float ball cooperates pull rope to pull together egg-laying plate.Egg-laying plate provides spawning platform for fish population.When water level fluctuates, vice float ball moves along with water surface height, so that the height of egg-laying plate relative to water surface remains consistent, so that egg-laying plate is always in suitable water depth, and provides suitable growth temperature for fish egg.

Description

Technical Field

[0001] This utility model relates to the field of oviposition board technology, and in particular to a liftable benthic oviposition board for ecological refuges in cold river regions. Background Technology

[0002] Human activities and changes in the natural environment have led to a reduction in river water volume during the fish breeding season. This has resulted in a significant decrease in the amount of aquatic plants available for spawning on riverbanks and the area of ​​terrestrial plants submerged by river water. Consequently, the area of ​​suitable spawning grounds for fish has shrunk, and the number and types of fish have declined sharply. Artificial propagation and release of fish cannot effectively solve the problems of fish numbers and species.

[0003] Setting up artificial fish nests in natural water bodies such as rivers, lakes, and reservoirs to provide spawning beds for fish is an effective method for the artificial propagation of fish resources. However, in cold regions, water temperature varies significantly at different depths, and existing spawning boards are generally fixed in position, making it difficult to adjust their location to adapt to water level fluctuations, which is detrimental to the survival of fish eggs. Therefore, an improved, liftable benthic spawning board for cold-region river ecological refuges is proposed. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a liftable benthic spawning board for ecological refuges in cold river regions, in order to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a liftable benthic spawning board for a cold-region river ecological refuge, comprising a fixed column, a movable column inserted into the fixed column, several through slots on the outer side of the fixed column, several protrusions fixedly connected to the outer side of the movable column within the through slots, a counterweight fixedly connected to the bottom end of the fixed column, and a main float fixedly connected to the top end of the movable column; a collar is sleeved on the outer side of the fixed column, and a spawning board is fixedly connected to the outer side of the collar; a vertical plate is fixedly connected to the spawning board, a winding rod is fixedly connected to one side of the vertical plate, a pull rope is fixedly connected to the winding rod, and a secondary float is fixedly connected to the top end of the pull rope.

[0007] Preferably, in any of the above schemes, a plurality of the through slots are evenly arranged circumferentially on the fixed post, and the outer side of the protrusion is flush with the outer side of the fixed post.

[0008] The above technical solution employs a fixed column and a movable column as vertical components, providing constraint and guidance for the spawning ring and the spawning plate. Their cooperation allows for adjustment of the spawning plate's height, adapting to water depths of varying sizes. A through groove is created on the fixed column, which, in conjunction with a protrusion on the outer side of the movable column, ensures that the outer surfaces of the fixed and movable columns are flush, allowing the spawning ring to move smoothly along their outer sides.

[0009] Preferably, in any of the above schemes, the corners of the counterweight are rounded, and a transition plate is provided between the main float and the movable column.

[0010] The above technical solution employs the following: The counterweight provides an installation platform for the fixed column, giving the device sufficient weight to stand stably in the water. Rounding the corners of the counterweight prevents sharp edges from injuring fish. A float is installed at the top of the movable column, allowing it to float on the water surface. This ensures that the overall height of the fixed and movable columns matches the water depth, enabling the spawning plate to be adjusted for depth based on the water level.

[0011] Preferably, in any of the above embodiments, the oviposition plate is arranged obliquely, and the oviposition plate is provided with a flat plate area, a whisker-like area, and a nest area.

[0012] The above technical solution employs a ring that provides an installation platform for the spawning plate and constrains it, preventing horizontal displacement. The spawning plate is angled to facilitate broodstock laying their eggs. The spawning plate is divided into a flat area, a barbel-like area, and a nesting area to provide spawning environments for fish with different habits.

[0013] Preferably, of any of the above embodiments, there are four upright plates, which are respectively located at the four corners of the spawning plate, and the end plate is fixedly connected to the end of the winding rod.

[0014] The above technical solution employs the following: The uprights provide an installation platform for the winding rod, which in turn provides a winding platform for the pull rope, facilitating adjustments to the rope length by staff as needed. A secondary buoy, in conjunction with the pull rope and winding rod, secures the spawning plate, adjusting its position according to water level fluctuations. Uprights are installed at the four corners of the spawning plate, allowing for securing from these angles and promoting stress balance. An end plate is installed at the end of the winding rod to restrain the pull rope and prevent it from detaching during winding.

[0015] Preferably, in any of the above embodiments, a pull rod is fixedly connected to the counterweight, and a slot is provided at the bottom of the movable column, into which the pull rod is inserted.

[0016] Preferably, in any of the above solutions, a limit block is fixedly connected to the top of the pull rod, and a retaining ring is provided at the bottom of the slot inside the movable column.

[0017] The above technical solution involves installing a tie rod on the counterweight block, which, in conjunction with a slot at the bottom of the movable column, restrains the movable column and prevents it from shifting in other directions. A limiting block is installed at the top of the tie rod, which, in conjunction with a retaining ring at the bottom of the slot, restrains the movable column and prevents it from completely detaching from the fixed column.

[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0019] 1. This cold-region river ecological refuge features a retractable benthic spawning board. It consists of a fixed column, a movable column, a counterweight, a main buoy, a spawning board, a rope, and a secondary buoy. The weight of the counterweight and the buoyancy of the main buoy keep the device upright in the water. The secondary buoy, along with the rope, secures the spawning board. The spawning board provides a spawning platform for fish. As the water level rises and falls, the secondary buoy moves with the water level, keeping the spawning board at a consistent height relative to the water surface. This ensures the spawning board remains at a suitable depth, providing a suitable growth temperature for the fish eggs.

[0020] 2. This cold-region river ecological refuge features a retractable benthic spawning board. A slot is cut into the fixed post, which, along with protrusions on the outer side of the movable post, ensures that the outer surfaces of the fixed and movable posts are flush, allowing the loop to move smoothly along their outer sides. The spawning board is angled to facilitate broodstock laying their eggs. The spawning board includes a flat area, a whisker-like area, and a nesting area, providing spawning environments for fish with different habits. Vertical plates are installed at the four corners of the spawning board, allowing for connection and balancing of forces. An end plate is installed at the end of the retractor to restrain the pull rope and prevent it from detaching from the retractor.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a first-view structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0025] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention;

[0026] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0027] In the diagram: 1-Fixed column, 2-Moving column, 3-Through groove, 4-Protrusion, 5-Counterweight block, 6-Main float, 7-Ring, 8-Spawning plate, 9-Upright plate, 10-Rewinding rod, 11-Pull rope, 12-Secondary float, 13-Pull rod, 14-Limiting block. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] like Figures 1-4 As shown, this utility model includes a fixed column 1, a movable column 2 inserted into the fixed column 1, several through slots 3 opened on the outer side of the fixed column 1, several protrusions 4 fixedly connected to the outer side of the movable column 2 in the through slots 3, a counterweight block 5 fixedly connected to the bottom end of the fixed column 1, and a main float 6 fixedly connected to the top end of the movable column 2; a collar 7 is sleeved on the outer side of the fixed column 1, an spawning plate 8 is fixedly connected to the outer side of the collar 7, a vertical plate 9 is fixedly connected to the spawning plate 8, a winding rod 10 is fixedly connected to one side of the vertical plate 9, a pull rope 11 is fixedly connected to the winding rod 10, and a secondary float 12 is fixedly connected to the top end of the pull rope 11.

[0031] Example 1: Several through slots 3 are evenly arranged circumferentially on the fixed column 1, and the outer surface of the protrusion 4 is flush with the outer surface of the fixed column 1. The fixed column 1 and the movable column 2 serve as vertical components, providing constraint and guidance for the collar 7 and the spawning plate 8. Their cooperation allows the height of the spawning plate to be adjusted to adapt to waters of different depths. Through slots 3 are opened on the fixed column 1, which, in conjunction with the protrusion 4 on the outer side of the movable column 2, make the outer surfaces of the fixed column 1 and the movable column 2 flush, allowing the collar 7 to move smoothly on their outer sides. The corners of the counterweight 5 are rounded, and a transition plate is provided between the main float 6 and the movable column 2. The counterweight 5 provides an installation platform for the fixed column 1, giving the device a certain weight so that it can stand stably in the water. Rounding the corners of the counterweight 5 prevents sharp edges from injuring fish. A float 6 is installed at the top of the movable column 2. The float 6 can float on the water surface under the action of buoyancy, so that the overall height of the fixed column 1 and the movable column 2 is the water depth, which provides the conditions for the spawning plate 8 to adjust the depth according to the water level.

[0032] Example 2: The spawning plate 8 is arranged at an angle and has a flat area, a whisker-like area, and a nesting area. The collar 7 provides an installation platform for the spawning plate 8 and can constrain it to prevent horizontal displacement. The angled arrangement of the spawning plate 8 facilitates the laying of eggs by parent fish. The flat area, whisker-like area, and nesting area on the spawning plate 8 provide spawning environments for fish with different habits. There are four upright plates 9, each located at one of the four corners of the spawning plate 8. The end plate is fixedly connected to the end of the winding rod 10. The upright plates 9 provide an installation platform for the winding rod 10, which in turn provides a winding platform for the pull rope 11, allowing workers to adjust the length of the pull rope 11 as needed. The auxiliary float 12, in conjunction with the pull rope 11 and the winding rod 10, connects the spawning plate 8, adjusting its position according to water level fluctuations. Upright plates 9 are installed at the four corners of the spawning plate 8 to tie the spawning plate 8 from the four corners, which helps to balance the force on the spawning plate 8. An end plate is installed at the end of the winding rod 10 to restrain the pull rope 11 and prevent the winding pull rope from falling off the winding rod 10.

[0033] Example 3: A pull rod 13 is fixedly connected to the counterweight 5. A slot is provided at the bottom of the movable column 2, and the pull rod 13 is inserted into the slot of the movable column 2. A limit block 14 is fixedly connected to the top of the pull rod 13, and a retaining ring is provided at the bottom of the slot in the movable column 2. The pull rod 13 on the counterweight 5, in conjunction with the slot at the bottom of the movable column 2, can constrain the movable column 2 and prevent it from displacing in other directions. The limit block 14 at the top of the pull rod 13, in conjunction with the retaining ring at the bottom of the slot, can constrain the movable column 2 and prevent it from completely detaching from the fixed column 1.

[0034] The working principle of this utility model is as follows:

[0035] S1. Using the weight of the counterweight 5 and the buoyancy of the main float 6, the device is made to stand upright in the water.

[0036] S2 and auxiliary float 12, together with pull rope 11, are used to connect the spawning plate 8. The spawning plate 8 provides a spawning platform for the fish.

[0037] S3. When the water level rises or falls, the auxiliary float 12 moves with the water level to keep the height of the spawning plate 8 relative to the water surface consistent, so that the spawning plate 8 is always at a suitable water depth to provide a suitable growth temperature for the fish eggs.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] 1. This cold-region river ecological refuge features a retractable benthic spawning board. It consists of a fixed column 1, a movable column 2, a counterweight 5, a main buoy 6, a spawning board 8, a rope 11, and a secondary buoy 12. The weight of the counterweight 5 and the buoyancy of the main buoy 6 keep the device upright in the water. The secondary buoy 12, in conjunction with the rope 11, secures the spawning board 8. The spawning board 8 provides a spawning platform for fish. As the water level rises and falls, the secondary buoy 12 moves with the water level, maintaining a consistent height of the spawning board 8 relative to the water surface. This ensures the spawning board 8 remains at a suitable water depth, providing a suitable growth temperature for the fish eggs.

[0040] 2. This cold-region river ecological refuge features a liftable benthic spawning board. A groove 3 is created on the fixed post 1, which, in conjunction with the protrusion 4 on the outer side of the movable post 2, ensures that the outer surfaces of the fixed post 1 and the movable post 2 are flush, allowing the collar 7 to move smoothly along their outer sides. The spawning board 8 is angled to facilitate the laying of eggs by parent fish. The spawning board 8 includes a flat area, a whisker-like area, and a nesting area, providing spawning environments for fish with different habits. Vertical plates 9 are installed at the four corners of the spawning board 8, allowing for connection and balancing of forces. An end plate is installed at the end of the winding rod 10 to restrain the pull rope 11, preventing it from detaching from the winding rod 10.

Claims

1. A retractable benthic oviposition board for a cold-region river ecological refuge, comprising a fixed post (1); characterized in that, A movable column (2) is inserted into the fixed column (1). Several through slots (3) are opened on the outside of the fixed column (1). Several protrusions (4) in the through slots (3) are fixedly connected to the outside of the movable column (2). A counterweight (5) is fixedly connected to the bottom end of the fixed column (1). A main float (6) is fixedly connected to the top end of the movable column (2). A collar (7) is fitted around the outside of the fixed column (1). An spawning plate (8) is fixedly connected to the outside of the collar (7). A standing plate (9) is fixedly connected to the spawning plate (8). A winding rod (10) is fixedly connected to one side of the standing plate (9). A pull rope (11) is fixedly connected to the winding rod (10). A secondary float (12) is fixedly connected to the top of the pull rope (11).

2. The retractable benthic spawning board for a cold-region river ecological refuge as described in claim 1, characterized in that: Several through slots (3) are evenly arranged around the circumference of the fixed post (1), and the outer side of the protrusion (4) is flush with the outer side of the fixed post (1).

3. The retractable benthic spawning board for a cold-region river ecological refuge as described in claim 2, characterized in that: The corners of the counterweight (5) are rounded, and a transition plate is provided between the main float (6) and the movable column (2).

4. The retractable benthic spawning board for a cold-region river ecological refuge as described in claim 3, characterized in that: The oviposition plate (8) is arranged obliquely, and the oviposition plate (8) is provided with a flat plate area, a whisker-like area and a nest area.

5. The retractable benthic spawning board for a cold-region river ecological refuge as described in claim 4, characterized in that: There are four upright plates (9) and they are respectively set at the four corners of the spawning plate (8). The end plate is fixedly connected to the end of the winding rod (10).

6. The retractable benthic spawning board for a cold-region river ecological refuge as described in claim 5, characterized in that: A pull rod (13) is fixedly connected to the counterweight (5), and a slot is provided at the bottom of the movable column (2), and the pull rod (13) is inserted into the slot of the movable column (2).

7. The retractable benthic spawning board for a cold-region river ecological refuge as described in claim 6, characterized in that: The top of the pull rod (13) is fixedly connected to a limit block (14), and a retaining ring is provided at the bottom of the slot in the movable column (2).

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