Umbrella-shaped artificial fish nest

Abstract

The utility model discloses an umbrella-shaped artificial fish nest which is characterized in that a fixed seat is arranged at the lower end of a positioning column, and a positioning disc is sleeved on the fixed seat; a plurality of mounting grooves are formed in the outer wall of the positioning disc, two limiting grooves are symmetrically formed in each mounting groove, and a supporting piece is arranged at each mounting groove; the supporting piece comprises two reinforcing plates, the lower half sections of the reinforcing plates are inserted into the limiting grooves respectively, positioning blocks are arranged on the outer sides of the upper half sections of the reinforcing plates, and the positioning blocks are connected with the positioning disc at the same time. The upper ends of the reinforcing plates are connected with a positioning seat at the same time, the positioning seat is connected with one end of a supporting rod, a supporting rod is arranged above the supporting rod, the supporting rod is connected with the two reinforcing plates at the same time, and the supporting rod is used for supporting the supporting rod; a bottom net is arranged below the supporting rods and connected with the fixing base and the supporting rods. The device has the advantages of improving the adhesion rate, survival rate and hatching rate of roes, being simple in structure, easy to store, convenient to transfer, capable of being used repeatedly, low in manufacturing and using cost and the like.

Description

Technical Field

[0001] The utility model relates to a fish nest, in particular to an umbrella-shaped artificial fish nest. Background Art

[0002] Artificial fish nests are designed to simulate the spawning sites of fish in the natural environment, providing fish with more spawning opportunities and suitable spawning conditions, thereby promoting fish reproduction and population growth, which is of great significance for protecting the ecological environment of water bodies and improving fishery resources.

[0003] Artificial fish nests in the prior art are mostly made of grass, palm sheets, and mesh, which are then wrapped around sticks or racks, and then multiple grass-wrapped sticks or racks are connected to a positioning frame. When in use, the positioning frame can be fixed between 0.5-1.0m underwater or on the shore by structures such as ropes or piles. The above methods can provide a place for fish to lay eggs, but there are the following shortcomings:

[0004] 1) In the prior art, the grass is wound around a stick or a rack and then connected to the positioning frame. On the one hand, the stability is not high and it is easy to shake; on the other hand, it is impossible to collect the fallen fish eggs, which reduces the adhesion rate, survival rate and hatching rate of the fish eggs; on the other hand, after use, the soaked stick or rack is generally discarded, and the next time the fish nest is needed, it must be remade, resulting in waste;

[0005] 2) Although it is made of green grass, it is easy to be eaten by fish, resulting in little left after a while, thus damaging the artificial fish nest. This requires staff to continuously observe and update the artificial fish nest. Not only does it affect the spawning rate, but it also requires continuous placement of new green grass on the positioning frame. This method not only increases the labor intensity of the operator, but also has high costs;

[0006] 3) The stickiness of the palm sheet is good, but the size is limited. When placed vertically in the water, the area for the fish eggs to attach is limited. When fish spawn, they are in a jet-like shape, which will cause most of the fish eggs to fall directly into the water and cannot hatch into fry, resulting in resource loss;

[0007] 4) Artificial fish nests made of mesh are easily scratched when fish enter to lay eggs, and are troublesome to clean or dismantle.

[0008] 5) The artificial fish nests made of the above materials are not convenient for calculating the area, evaluating the spawning effect and the amount of resources.

[0009] Therefore those skilled in the art are committed to providing an umbrella-shaped artificial fish nest that can effectively solve the above-mentioned technical problems. Utility Model Content

[0010] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present utility model is to provide an umbrella-shaped artificial fish nest that can effectively solve the above-mentioned technical problems.

[0011] To achieve the above object, the present utility model provides an umbrella-shaped artificial fish nest, including a positioning column, a hanging ring is arranged at the upper end of the positioning column, a fixing seat is arranged at the lower end of the positioning column, and a positioning disk is sleeved on the fixing seat;

[0012] A plurality of installation grooves are formed in the outer wall of the positioning disk, two limiting grooves are symmetrically arranged in each installation groove, and a supporting member is arranged at each installation groove;

[0013] The supporting member includes two reinforcing plates, the lower half sections of the reinforcing plates are respectively inserted into the limiting grooves, positioning blocks are arranged on the outer sides of the upper half sections of the reinforcing plates, and the positioning blocks are simultaneously connected to the positioning disk; the upper ends of the reinforcing plates are simultaneously connected to a positioning seat, the positioning seat is connected to one end of a support rod, a supporting rod is arranged above the support rod, the supporting rod is simultaneously connected to the two reinforcing plates, and the support rod is used for supporting the supporting rod;

[0014] A bottom net is arranged below the supporting rod, and the bottom net is simultaneously connected to the fixing seat and each supporting rod.

[0015] Further, an opening penetrating the positioning column is formed in the upper half section of the positioning column.

[0016] Further, a threaded hole is formed in the lower end of the positioning column, the lower end of the positioning column is threadedly connected to the upper half section of a threaded rod through the threaded hole, and the positioning column is connected to the fixing seat through the threaded rod;

[0017] A threaded cylinder is sleeved on the threaded rod, a rotating cylinder is rotatably sleeved on the threaded cylinder, a pressing disk is sleeved on the upper half section of the rotating cylinder, the upper end of the pressing disk is provided with pressing seats having the same number as the installation grooves, each pressing seat is located in each installation groove and is used for pressing and limiting each supporting rod, the center line of the pressing disk coincides with the center line of the positioning disk, and the diameter is larger than the diameter of the positioning disk.

[0018] Further, the support rod includes an integrally formed reinforcing section and an extending section, the inner end of the reinforcing section is connected to the positioning seat, the outer end of the reinforcing section is connected to the inner end of the extending section, the upper end of the reinforcing section is an arc surface, and the cross section of the reinforcing section gradually becomes smaller from the inside to the outside.

[0019] Further, a positioning groove is formed in the lower end of the support rod, and the inner side of the supporting rod is attached to the support rod and located in the positioning groove.

[0020] Furthermore, a first fixing ring is provided on the fixing base, and a plurality of second fixing rings are arranged along the length direction of the supporting rod. The bottom net is detachably connected to both the first fixing ring and each of the second fixing rings.

[0021] Furthermore, the aperture of the bottom net is 1 mm, which is the same as the egg diameters of common carp and crucian carp that produce adhesive eggs. It can not only enable the fish eggs to adhere well, but also improve water permeability and is beneficial to water body exchange; The bottom net is a nylon mesh sheet with 40 meshes and an aperture of 1 mm, and it is preferably green to create a green spawning environment.

[0022] The bottom net is a nylon mesh sheet with 40 meshes and an aperture of 1 mm, and it is preferably green to create a green spawning environment.

[0023] Furthermore, a plurality of reinforcing seats are arranged along the length direction of the supporting rod, and each of the reinforcing seats is used to fix the winding frame.

[0024] Furthermore, the winding frame includes a connecting rod. A first winding rod and a second winding rod are respectively arranged at both ends of the connecting rod. The length of the second winding rod is greater than that of the first winding rod, and the first winding rod is detachably connected to the reinforcing seat.

[0025] Furthermore, the first winding rod is inserted into the reinforcing seat. A positioning rod passes through the supporting rod, the first winding rod and the second winding rod and is locked by a positioning nut. A limiting nut is sleeved on the positioning rod; the size of the winding frame gradually becomes smaller from outside to inside along the length direction of the supporting rod.

[0026] The beneficial effects of the present utility model are as follows:

[0027] 1) When the present utility model is not in use, components such as the threaded cylinder, the rotating cylinder, the pressing seat, and the bottom net can be disassembled, which is not only convenient for transportation and storage, but also avoids damage to the components, especially the bottom net;

[0028] 2) The present utility model can be reused. When a single component is damaged, the damaged part can be disassembled and replaced separately, avoiding overall scrapping and further reducing the use cost;

[0029] 3) The arc-shaped net bottom enables the dropped fish eggs to fall on the bottom net and continue to hatch, improving the adhesion rate, survival rate and hatching rate of the fish eggs;

[0030] 4) By setting a green nylon belt and winding it around the supporting rod, it not only has good adhesiveness, but also has a fish attracting effect, and at the same time avoids damage to the fish;

[0031] 5) An umbrella-shaped artificial fish nest with a corresponding area can be made according to needs, which is convenient for calculating the area, evaluating the spawning effect and the resource quantity;

[0032] 6) It has beneficial effects such as simple structure, easy storage, convenient transportation, reusable, low manufacturing and use costs. Brief Description of the Drawings

[0033] Figure 1 is a schematic structural diagram of a specific embodiment of the present utility model.

[0034] Figure 2 is Figure 1 a partially enlarged schematic structural diagram at position A in

[0035] Figure 3 is a schematic structural diagram of the present utility model without components such as positioning columns and bottom nets installed.

[0036] Figure 4 is Figure 3 a partially enlarged schematic structural diagram at position B in

[0037] Figure 5 is a schematic structural diagram of the present utility model with hanging rings provided on the positioning columns and threaded holes opened.

[0038] Figure 6 is Figure 3 a schematic structural diagram in which only one support rod is provided and only two winding frames are provided on the support rod.

[0039] Figure 7 is Figure 6 a schematic structural diagram of the present utility model without components such as support rods and winding frames installed.

[0040] Figure 8 is Figure 7 a schematic structural diagram of the present utility model without components such as threaded cylinders, rotating cylinders, and abutting seats installed.

[0041] Figure 9 is Figure 8 a schematic structural diagram of the present utility model without some support rods installed.

[0042] Figure 10 is Figure 9 a partially enlarged schematic structural diagram at position C in

[0043] Figure 11 a schematic structural diagram of the connection between the support rod and the positioning seat.

[0044] Figure 12 a schematic structural diagram without abutting the support rod through the abutting seat.

[0045] Figure 13 a schematic structural diagram of the cooperation of components such as threaded cylinders and rotating cylinders. Detailed Description of the Embodiment

[0046] The present utility model will be further described below with reference to the drawings and embodiments:

[0047] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0048] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "setting", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] As Figures 1 to 13 shown, an umbrella-shaped artificial fish nest includes a positioning column 1. A hanging ring 5 is arranged at the upper end of the positioning column 1, and a fixing seat 3 is arranged at the lower end of the positioning column 1. A positioning disk 2 is sleeved on the fixing seat 3;

[0050] A plurality of installation grooves 6 are formed in the outer wall of the positioning disk 2. Two limiting grooves 9 are symmetrically arranged in each of the installation grooves 6, and a supporting member 8 is arranged at each of the installation grooves 6;

[0051] The supporting member 8 includes two reinforcing plates 10. The lower half segments of the reinforcing plates 10 are respectively inserted into the limiting grooves 9. Positioning blocks 11 are arranged on the outer sides of the upper half segments of the reinforcing plates 10, and the positioning blocks 11 are simultaneously connected to the positioning disk 2; the upper ends of the reinforcing plates 10 are simultaneously connected to a positioning seat 12. The positioning seat 12 is connected to one end of a support rod 13. A supporting rod 7 is arranged above the support rod 13, and the supporting rod 7 is simultaneously connected to the two reinforcing plates 10. The support rod 13 is used to support the supporting rod 7; as a further preference, in the present utility model, the supporting rod 7 is hinged to the two reinforcing plates 10. By this connection method, when it is stored, it is convenient to fold up the supporting rod 7, so as to be better stored and carried.

[0052] A bottom net 15 is arranged below the supporting rod 7, and the bottom net 15 is simultaneously connected to the fixing seat 3 and each of the supporting rods 7.

[0053] An opening 18 penetrating the positioning column 1 is formed in the upper half segment of the positioning column 1.

[0054] A threaded hole 19 is formed at the lower end of the positioning post 1. The lower end of the positioning post 1 is threadedly connected to the upper half of the threaded rod 20 through the threaded hole 19, and the positioning post 1 is connected to the fixed seat 3 through the threaded rod 20;

[0055] A threaded cylinder 21 is sleeved on the threaded rod 20, a rotating cylinder 22 is rotatably sleeved on the threaded cylinder 21, a pressing disc 23 is sleeved on the upper half of the rotating cylinder 22, and the upper end of the pressing disc 23 is provided with pressing seats 26 having the same number as the installation grooves 6. Each of the pressing seats 26 is located in each of the installation grooves 6 and is used for pressing and limiting each of the support rods 7. The center line of the pressing disc 23 coincides with the center line of the positioning disc 2, and the diameter is larger than the diameter of the positioning disc 2.

[0056] The support rod 13 includes an integrally formed strengthening section 27 and an extending section 28. The inner end of the strengthening section 27 is connected to the positioning seat 12, the outer end of the strengthening section 27 is connected to the inner end of the extending section 28, the upper end of the strengthening section 27 is an arc surface, and the cross section of the strengthening section gradually becomes smaller from the inside to the outside.

[0057] A positioning groove 29 is formed at the lower end of the support rod 13. The inner side of the support rod 7 is attached to the support rod 13 and is located in the positioning groove 29.

[0058] A first fixing ring 30 is arranged on the fixed seat 3, and a plurality of second fixing rings 31 are arranged along the length direction of the support rod 7. The bottom net 15 is detachably connected to both the first fixing ring 30 and each of the second fixing rings 31.

[0059] The aperture of the bottom net 15 is 1 mm, which is the same as the egg diameter of common carp and crucian carp that produce adhesive eggs. It can not only enable the fish eggs to adhere well, but also improve the water permeability and is beneficial to water body exchange. The egg diameter is the same, which can not only enable the fish eggs to adhere well, but also improve the water permeability and is beneficial to water body exchange.

[0060] Furthermore, the bottom net 15 adopted in the present utility model is a nylon mesh sheet with a 40 - mesh aperture of 1 mm. The material is soft, which can not only effectively prevent the fish eggs from falling off the bottom net 15 because the aperture of the bottom net 15 is larger than the fish eggs, but also avoid harming the fish.

[0061] A plurality of reinforcing seats 32 are arranged along the length direction of the support rod 7, and each of the reinforcing seats 32 is used for fixing the winding frame 33.

[0062] The winding frame 33 includes a connecting rod 35. The two ends of the connecting rod 35 are respectively provided with a first winding rod 36 and a second winding rod 37. The length of the second winding rod 37 is greater than the length of the first winding rod 36, and the first winding rod 36 is detachably connected to the reinforcing seat 32.

[0063] The first winding rod 36 is inserted into the reinforcement base 32. The positioning rod 38 passes through the support rod 7, the first winding rod 36 and the second winding rod 37 and is locked by a positioning nut. A limit nut 39 is sleeved on the positioning rod 38; along the length direction of the support rod 7, the size of the winding frame 33 gradually decreases from outside to inside.

[0064] In the present utility model, the setting of the reinforcement base 32 can not only detachably install the winding frame 33, but also improve the strength of the support rod 7.

[0065] In addition, the area of one umbrella-shaped artificial fish nest is fixed at 1 m 2 , which is convenient for calculating the total area of all fish nests, is beneficial to calculating the area, evaluating the spawning effect and the resource quantity, and brings convenience to the implementation and acceptance of the project.

[0066] In the present utility model, both the nylon belt and the bottom net 15 (net sheet) are green, so as to create a natural "grassland" environment and attract fish to spawn.

[0067] The optimal working principle of the present utility model is as follows:

[0068] A nylon belt (not shown in the figure) is wound around the support rod 7. The nylon belt is a prior art. The wound nylon belt is strip-shaped and green in color. Green has the effect of attracting fish, so that fish can spawn on the fish nest; when winding the nylon belt, it should be noted that there is a certain space between the nylon belt and the bottom net 15 to avoid oxygen deficiency of fish eggs; as a further preference, the present utility model also sets a winding frame 33 on the support rod 7 and sets the nylon belt on the winding frame 33. On the one hand, it can widen the distance between the nylon belt and the bottom net 15, so as to further avoid the death of fish eggs due to the too close distance between the bottom net 15 and the nylon belt. On the other hand, more nylon belts can be set; the number of support rods 7 is four (the specific number can be increased or decreased during manufacturing according to actual needs), and the number of fixed winding frames 33 can be set according to needs;

[0069] Subsequently, one or more fish nests can be fixed on a positioning frame (not shown in the figure) according to actual needs. The specific fixing method is to fix the present utility model on the positioning frame through the hanging ring 5 or the opening 18 formed on the positioning column 1, and fix the positioning frame on the bottom of the water or the shore through structures such as ropes or pile columns. The positioning frame can be made of bamboo, wooden strips or other materials. The main function is to fix the fish nest. The positioning frame is a prior art and will not be elaborated here;

[0070] Fish lay fish eggs on the nylon belt. Since fish lay eggs in a jet-like manner, some fish eggs will fall off the nylon belt. The fallen fish eggs fall onto the bottom net 15 and continue to hatch, reducing the mortality rate of fish eggs and increasing the hatching rate;

[0071] The length of the positioning post 1 can be selected as positioning posts with different lengths according to actual needs. During use, since the support rod 7 itself has a certain weight, and a nylon strap is also wound around the support rod 7, further increasing the weight. Thus, when the support rod 7 is opened, it will naturally droop and contact the support rod 13 and be supported by the support rod 13. As a further preference, the present utility model further cooperates with the support rod 13 to tightly limit the support rod 7 by arranging components such as the rotating cylinder 22, the pressing disc 23, and the pressing seat 26. Specifically, the positioning post 1 is separated from the threaded rod 20, the threaded cylinder 21 is threadedly sleeved on the threaded rod 20, and by rotating the threaded cylinder 21, the pressing seat 26 is moved towards the direction of the fixed seat 3 until each pressing seat 26 extends into the installation groove 6 and fits with the support rod 7. At this time, the support rod 7 can be positioned by the pressing seat 26 and the support rod 13, further improving the stability. Since the rotating cylinder 22 is rotatably sleeved on the threaded cylinder 21, the rotation of the threaded cylinder 21 can be prevented from driving the rotating cylinder 22 to rotate.

[0072] When not in use, the positioning post 1 can be removed, then the threaded cylinder 21 can be unscrewed to remove components such as the rotating cylinder 22 and the pressing seat 26. Subsequently, the bottom net 15 can be removed to avoid damaging the bottom net 15 during transportation and storage. The winding frame 33 can be removed, and then the support rod 7 can be folded inward (the support rod 7 is also detachable, but it is generally not disassembled during transportation and storage, and is only disassembled during maintenance and damage. Further, after the support rod 7 is folded, it can be tied with a tightening band to improve the regularity during storage). Through the above disassembly, it is beneficial to protect each component, convenient for storage, does not occupy space during transportation, and is also more convenient for the operator to carry (especially the section from the unloading place to the using place), and can be reused. After each component is damaged, it can be replaced separately, further saving the use cost and avoiding waste.

[0073] The preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present utility model without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present utility model through logical analysis, reasoning, or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. An umbrella-shaped artificial fish nest, characterized in that: It comprises a positioning column (1), the upper end of the positioning column (1) is provided with a hanging ring (5), the lower end of the positioning column (1) is provided with a fixing seat (3), and the fixing seat (3) is sleeved with a positioning plate (2); The outer wall of the positioning plate (2) is provided with a plurality of installation grooves (6), each of the installation grooves (6) is provided with two mutually symmetrical limit grooves (9), and each of the installation grooves (6) is provided with a supporting member (8); The support member (8) comprises two reinforcing plates (10), the lower half of each reinforcing plate (10) is inserted into each limiting groove (9), and a positioning block (11) is arranged on the outer side of the upper half of each reinforcing plate (10), and each positioning block (11) is connected to the positioning plate (2) at the same time; the upper end of each reinforcing plate (10) is connected to a positioning seat (12), and the positioning seat (12) is connected to one end of a support rod (13), and a support rod (7) is arranged above the support rod (13), and the support rod (7) is connected to the two reinforcing plates (10) at the same time, and the support rod (13) is used to support the support rod (7); A bottom net (15) is provided below the support rods (7), and the bottom net (15) is connected to the fixing seat (3) and each of the support rods (7) at the same time.

2. The umbrella-shaped artificial fish nest according to claim 1, characterized in that: The upper half of the positioning column (1) is provided with an opening (18) that passes through the positioning column (1).

3. The umbrella-shaped artificial fish nest according to claim 2, characterized in that: A threaded hole (19) is formed at the lower end of the positioning column (1), and the lower end of the positioning column (1) is threadedly connected to the upper half of the threaded rod (20) via the threaded hole (19), and the positioning column (1) is connected to the fixing seat (3) via the threaded rod (20); A threaded cylinder (21) is sleeved on the threaded rod (20), and a rotating cylinder (22) is rotatably sleeved on the threaded cylinder (21). A tightening plate (23) is sleeved on the upper half of the rotating cylinder (22). An tightening seat (26) having the same number as the mounting grooves (6) is arranged at the upper end of the tightening plate (23). Each of the tightening seats (26) is located in each of the mounting grooves (6) and is used to tighten and limit each of the support rods (7). The center line of the tightening plate (23) coincides with the center line of the positioning plate (2), and the diameter is larger than the diameter of the positioning plate (2).

4. The umbrella-shaped artificial fish nest according to claim 3, characterized in that: The support rod (13) comprises an integrally formed reinforcement section (27) and an extension section (28); the inner end of the reinforcement section (27) is connected to the positioning seat (12); the outer end of the reinforcement section (27) is connected to the inner end of the extension section (28); the upper end of the reinforcement section (27) is an arc-shaped surface; and the cross-section of the reinforcement section gradually decreases from the inside to the outside.

5. The umbrella-shaped artificial fish nest as claimed in claim 3, characterized in that: A positioning groove (29) is provided at the lower end of the support rod (13), and the inner side of the support rod (7) is in contact with the support rod (13) and is located in the positioning groove (29).

6. The umbrella-shaped artificial fish nest as claimed in claim 3, characterized in that: A first fixing ring (30) is provided on the fixing seat (3), and a plurality of second fixing rings (31) are provided along the length direction of the supporting rod (7), and the bottom net (15) is detachably connected to the first fixing ring (30) and each of the second fixing rings (31).

7. The umbrella-shaped artificial fish nest according to claim 6, characterized in that: The pore size of the bottom net (15) is 1 mm, which is consistent with the egg diameter of common carp, crucian carp and mullet that lay sticky eggs. It can not only make the fish eggs adhere better, but also improve the water permeability and facilitate water exchange.

8. The umbrella-shaped artificial fish nest according to claim 7, characterized in that: A plurality of reinforcement seats (32) are provided along the length direction of the support rod (7), and each reinforcement seat (32) is used to fix the winding frame (33).

9. The umbrella-shaped artificial fish nest according to claim 8, characterized in that: The winding frame (33) comprises a connecting rod (35), and a first winding rod (36) and a second winding rod (37) are respectively arranged at two ends of the connecting rod (35); the length of the second winding rod (37) is greater than the length of the first winding rod (36), and the first winding rod (36) is detachably connected to the reinforcement seat (32).

10. The umbrella-shaped artificial fish nest according to claim 9, characterized in that: The first winding rod (36) is inserted into the reinforcement seat (32); the positioning rod (38) passes through the support rod (7), the first winding rod (36) and the second winding rod (37) and is locked by a positioning nut; a limiting nut (39) is sleeved on the positioning rod (38); and the size of the winding frame (33) gradually decreases from the outside to the inside along the length direction of the support rod (7).

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