Breeding shrimp molting sheltering device

Abstract

According to the technical scheme, the sheltering device is characterized by comprising a plurality of layers of flexible rope nets, the rope nets are horizontally arranged and arranged in the vertical direction, the rope nets are sequentially connected, the two sides of the rope net on the top layer are connected with supporting rods respectively, the supporting rods are connected with floating blocks, and the floating blocks are connected with the rope nets on the bottom layer. The rope net on the bottom layer is connected with a sinking block, and a telescopic piece is connected between the supporting rods and used for adjusting the distance between the two supporting rods. The multi-layer rope net can provide rest and sheltering for shrimps in the molting period in a culture water body and avoid similar disabilities, and the telescopic piece is arranged so that the distance between the supporting rods can be adjusted at any time, and therefore the size of meshes of the rope net can be adjusted, and the multi-layer rope net can adapt to shrimps of different specifications and growth stages.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, and more specifically to a molting protection device for farmed shrimp. Background Technology

[0002] Giant freshwater prawns (Macrobrachium rosenbergii) are an important freshwater aquaculture species, prized for their rapid growth, delicious meat, and rich nutritional value. However, cannibalism is a common problem during aquaculture, leading to low yields. This is especially true during molting, when the prawns are vulnerable and easily preyed upon by other shrimp. To address this issue, farmers typically cultivate aquatic plants to provide hiding places for the molting prawns.

[0003] However, this method has certain drawbacks, such as nighttime pond hypoxia, competition for nutrients with algae, difficulty in controlling the planting density of aquatic plants, water quality deterioration after aquatic plant death, and difficulty in catching shrimp due to the influence of aquatic plants. Therefore, a novel device is needed to provide shelter for giant freshwater prawns during their molting period in order to increase the yield of giant freshwater prawns. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A molting protection device for farmed shrimp includes several layers of flexible rope nets, which are arranged horizontally and vertically. The rope nets are connected sequentially. Support rods are connected to both sides of the top layer of the rope net, and floats are connected to the support rods. Sinks are connected to the bottom layer of the rope net. Telescopic members are connected between the support rods to adjust the distance between the two support rods.

[0006] The present invention is further configured such that: the telescopic component is a scissor-type telescopic frame, the two support rods are horizontally arranged and parallel to each other, the telescopic direction of the scissor-type telescopic frame is perpendicular to the support rods, and the two ends of the scissor-type telescopic frame are respectively fixed on the two support rods.

[0007] The present invention is further configured such that: two telescopic components are provided, and the two telescopic frames are respectively connected to the two ends of the support rod in the length direction.

[0008] The present invention is further configured to include a connecting rope, the top of which is bound to the top layer of the rope net, with a gap between adjacent rope nets, the connecting rope passing through each layer of the rope net in sequence and being bound to each layer of the rope net, and the sinker being fixed to the bottom of the connecting rope.

[0009] The present invention is further configured such that: the rope net is rectangular, and four connecting ropes are provided, with the four connecting ropes respectively located near the four corners of the rope net.

[0010] The present invention is further configured such that: four floats and four sinkers are provided, the sinkers are respectively fixed to the bottom of the connecting rope, and the buoyancy of the floats is greater than the weight of the sinkers.

[0011] The present invention is further configured such that the mesh of the rope net is diamond-shaped or rectangular.

[0012] The present invention is further configured such that: a traction rope is provided on the support rod, and the traction rope is used to connect the support rod to an object on the shore.

[0013] Compared with the prior art, the present invention has at least the following advantages:

[0014] 1. By setting up multi-layered rope nets in aquaculture water, shrimp can be provided with rest and shelter during molting, avoiding cannibalism. By setting floats and sinkers on the top and bottom of the rope nets, the multi-layered rope nets can automatically open in the water, maintaining a fixed distance between the rope nets. By setting telescopic components, the spacing of the support rods can be adjusted at any time, thereby adjusting the tautness of the rope nets and controlling the size of the mesh to accommodate shrimp of different sizes and growth stages.

[0015] 2. Compared to traditional methods of planting aquatic plants, rope nets do not affect the water quality of the aquaculture water. They do not spoil the aquaculture water after dying like aquatic plants. Furthermore, they do not require daily maintenance like planting aquatic plants, reducing management effort. With the same area occupied, they can also provide more resting and sheltering space for molting.

[0016] 3. The densely packed rope nets in the aquaculture water can serve as an attachment substrate, providing a place for bacteria in the aquaculture water to attach, reproduce, and grow. This is beneficial for the reproduction of bacteria, the regulation of water quality, and the maintenance of water quality balance. Furthermore, it will not compete with algae in the aquaculture water for nutrients, and will not cause problems such as excessively high pond transparency, thereby affecting the growth of shrimp.

[0017] 4. By setting the buoyancy of the float to be greater than the weight of the sinker, when the device is applied to a deeper aquaculture pond, the sinker cannot touch the bottom of the pond, and the top rope net can still float on the water surface. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of this embodiment;

[0019] Figure 2 This is a front view of this embodiment;

[0020] Figure 3 This is a side view of this embodiment;

[0021] Figure 4 This is a schematic diagram of the top layer of rope netting.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Rope net; 2. Support rod; 3. Float; 4. Sink block; 5. Scissor telescopic frame; 6. Connecting rope; 7. Traction rope. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 based on the specific circumstances.

[0026] A molting protection device for farmed shrimp, such as Figures 1 to 4 As shown, the system comprises several layers of flexible rope net 1. The mesh size of the rope net 1 can be set to a diamond shape or a rectangle. The rope net 1 can be made directly from ordinary fishing nets. The rope net 1 is set horizontally, and several layers of rope net 1 are arranged vertically. The rope net 1 are connected to each other in sequence. Support rods 2 are connected to both sides of the top layer of rope net 1, and floats 3 are connected to the support rods 2. The bottom layer of rope net 1 is connected to sinkers 4. The floats 3 make the support rods 2 and the top layer of rope net 1 float upward, while the sinkers 4 pull the rope net 1 below downward. The up-and-down movement automatically separates the multiple layers of rope net 1 in the vertical direction.

[0027] A telescopic component connects the support rods 2, adjusting the distance between them. The flexible net 1 can bend or unfold as the support rods 2 move. Therefore, when the distance between the support rods 2 increases, the net 1 unfolds and tightens, widening the mesh. When the distance between the support rods 2 decreases, the net 1 bends inward, and the mesh shrinks due to the folding, adapting to the needs of shrimp at different growth stages. Furthermore, in the shrimp-catching netting method, users only need to bring the two support rods 2 together to easily pull the net, achieving an efficient and convenient shrimp-catching process.

[0028] In this embodiment, the telescopic component is a scissor-type telescopic frame 5. Two support rods 2 are horizontally arranged and parallel to each other. The telescopic direction of the scissor-type telescopic frame 5 is perpendicular to the support rods 2. Both ends of the scissor-type telescopic frame 5 are fixed to the two support rods 2 respectively. The ends of the scissor-type telescopic frame 5 are hinged to the support rods 2 via pivots. Pulling the support rods 2 outwards causes the scissor-type telescopic frame 5 to automatically extend. Pushing the support rods 2 inwards causes the scissor-type telescopic frame 5 to automatically fold and shorten, making operation very convenient. Furthermore, in this embodiment, the scissor-type telescopic frame 5 adopts a damped design. The user can apply a certain force to drive the scissor-type telescopic frame 5 to extend or retract. When no force is applied, the scissor-type telescopic frame 5 remains stationary, requiring no additional fixing operations, further simplifying the operation process.

[0029] In other embodiments, the telescopic component can also be configured as a telescopic sleeve, and the distance between the support rod 2 can be adjusted by sliding the inner and outer tubes together. The two tubes can be fixed together by friction.

[0030] In this embodiment, two telescopic components are provided, with two telescopic frames connected to both ends of the support rod 2 along its length. The scissor-type telescopic frames 5 are hinged to the ends of the support rod 2. By providing two telescopic components, the simultaneous movement of the two components when the support rod 2 is pulled is more stable.

[0031] The protective device also includes connecting ropes 6, the top of which is tied to the top layer of rope net 1. There is a gap between adjacent rope nets 1. The connecting ropes 6 pass through each layer of rope net 1 sequentially and are tied to each layer. A sinker 4 is fixed to the bottom of the connecting ropes 6. The rope nets 1 are connected by the connecting ropes 6. Under the action of the float 3 and the sinker 4, the connecting ropes 6 are straightened in the vertical direction, maintaining a fixed gap between the connected rope nets 1.

[0032] In this embodiment, the rope net 1 is rectangular, and four connecting ropes 6 are provided. The four connecting ropes 6 are respectively close to the four corners of the rope net 1. When the support rod 2 is pulled outward, the sinker 4 keeps the connecting ropes 6 vertical, so that the lower multi-layer rope net 1 is opened synchronously and maintains the same shape as the top rope net 1.

[0033] In this embodiment, four floats 3 and four sinkers 4 are provided. The sinkers 4 are fixed to the bottom of the connecting rope 6, and two floats 3 are fixed on each support rod 2. The buoyancy of the floats 3 is greater than the weight of the sinkers 4. When the shelter is applied to a deeper aquaculture pond, the sinkers 4 cannot touch the bottom of the pond. At this time, the floats 3 can drive the entire shelter to float up, so that the top rope net 1 can still float on the water surface.

[0034] A traction rope 7 is installed on the support rod 2, which is used to connect the support rod 2 to an object on the shore. One end of the traction rope 7 is tied to the support rod 2, and the other end can be tied to the object on the shore. The traction ropes 7 on the two support rods 2 are connected to the shores on both sides in opposite directions, thereby stabilizing the shelter in a certain area of ​​the aquaculture pond and preventing it from drifting. The length of the traction rope 7 is designed with a margin, so that the traction rope 7 will not be taut until the distance between the two support rods 2 is reduced to its minimum, providing space for the extension and retraction of the telescopic components.

[0035] In this embodiment, the support rod 2 is made of PVC round pipe, the float 3 is made of foam ball, and the sinker 4 is made of lead weight. Both the float 3 and the sinker 4 are spherical, and the diameter of the float 3 is larger than the diameter of the sinker 4.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A molting protection device for farmed shrimp, characterized in that: It includes several layers of flexible rope nets, which are arranged horizontally and vertically. The rope nets are connected in sequence. Support rods are connected to both sides of the top layer of the rope net, and floats are connected to the support rods. Sinks are connected to the bottom layer of the rope net. Telescopic members are connected between the support rods, and the telescopic members are used to adjust the distance between the two support rods.

2. The shrimp molting protection device according to claim 1, characterized in that: The telescopic component is a scissor-type telescopic frame. The two support rods are horizontally arranged and parallel to each other. The telescopic direction of the scissor-type telescopic frame is perpendicular to the support rods. The two ends of the scissor-type telescopic frame are respectively fixed to the two support rods.

3. The shrimp molting protection device according to claim 2, characterized in that: Two telescopic components are provided, and the two telescopic frames are respectively connected to the two ends of the support rod along its length.

4. The shrimp molting protection device according to claim 1, characterized in that: It also includes a connecting rope, the top of which is tied to the top layer of the rope net, with a gap between adjacent rope nets, the connecting rope passing through each layer of the rope net in sequence and being tied to each layer of the rope net, and the sinker being fixed to the bottom of the connecting rope.

5. The shrimp molting protection device according to claim 4, characterized in that: The rope net is rectangular, and four connecting ropes are provided, with each of the four connecting ropes located near one of the four corners of the rope net.

6. The shrimp molting protection device according to claim 5, characterized in that: There are four floats and four sinkers. The sinkers are fixed to the bottom of the connecting rope. The buoyancy of the float is greater than the weight of the sinker.

7. The shrimp molting protection device according to claim 1, characterized in that: The mesh of the rope net is diamond-shaped or rectangular.

8. The shrimp molting protection device according to claim 1, characterized in that: The support rod is equipped with a traction rope, which is used to connect the support rod to an object on the shore.

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