Bird prevention device for a breeding pond

Abstract

The application provides a breeding pond bird prevention device, which comprises a mounting framework and a protective net connected with the mounting framework; the mounting framework comprises two first supporting rods arranged in parallel with each other and two second supporting rods arranged in parallel with each other, the lower end of the second supporting rod is connected with an extension rod arranged at an angle with the second supporting rod and extending away from the first supporting rod; the protective net comprises a first net body, a second net body and a third net body connected in sequence; the two first supporting rods are connected through the first net body, the upper end of the first supporting rod and the upper end of the second supporting rod are connected through the second net body, and the upper end of the second supporting rod and the extension end of the extension rod are connected through the third net body. After the device is set, the first net body and the second net body can prevent birds from entering the shallow water area from the lower side of the third net body, the third net body forms a slope structure and covers the shallow water area, and birds can be prevented from standing on the shallow water area, thereby reducing the loss of fish and shrimp caused by bird predation.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a bird-proofing device for aquaculture ponds. Background Technology

[0002] Aquatic products are sourced from both fishing and aquaculture. Fishing yields are limited by natural conditions and cannot meet market demand, making aquaculture the primary source. However, aquaculture presents several problems, one of the most significant impacts on economic efficiency being bird predation. Birds often choose locations near water sources as their habitats, making farmed aquatic products in ponds prime prey. In severe cases, this can lead to yield reductions of over 70%. Furthermore, birds sometimes carry infectious bacteria and parasites, increasing the risk of large-scale outbreaks of infectious diseases in aquatic products, especially in high-density farming environments. To protect farmers' interests, it's crucial to prevent birds from preying on aquatic products. However, most birds are nationally protected animals, limiting the options to methods like driving them away or blocking them. Existing methods typically involve sound or visual deterrence. Sound deterrence often generates significant noise, affecting nearby residents, and birds adapt over time. Visual deterrence has a shorter duration of effect, allowing birds to adapt quickly. Manual deterrence is the most effective, but it's costly and cannot be implemented continuously. Therefore, these methods cannot completely eliminate bird predation. The most effective bird-proofing method currently is to cover the aquaculture pond with a bird net to physically prevent birds from entering the pond. This method is effective in preventing birds, but it also has some obvious drawbacks. First, the process of installing and removing the bird net on the aquaculture pond is time-consuming and laborious, and the maintenance of the bird net is relatively difficult. If the bird net is partially damaged, the entire bird net needs to be disassembled before it can be repaired or replaced. Second, this method is usually suitable for smaller aquaculture ponds and is difficult to implement for larger aquaculture ponds.

[0003] Patent document CN216219775U discloses a bird-proofing device for aquaculture ponds. It consists of main support rods arranged along the pond's embankment, positioning steel wire ropes, and bird-proof wires. The main support rods are spaced apart along the length of the pond, and the positioning steel wire ropes connect the upper ends of each main support rod to form a frame structure. The bird-proof wires are spaced apart along the width of the pond on the positioning steel wire ropes, with a spacing of 3-4 wires per meter. This technical solution can install bird-proof wires above the aquaculture pond to prevent birds from entering from above. However, in practical application, it only prevents some birds that fly in the air and prey on fish and shrimp from the water surface. Birds that require special attention, such as egrets and herons, can approach the pond from the shore and prey on fish and shrimp in the shallow water areas at the pond's edge. Therefore, the bird-proofing effect is not ideal. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a bird-proof device for aquaculture ponds. The device is simple to install and dismantle, easy to maintain, and adaptable to different types of aquaculture ponds. It effectively blocks birds such as egrets and herons that habitually prey on fish and shrimp in shallow water areas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bird-proof device for aquaculture ponds includes a mounting frame and a protective net connected to the mounting frame. The mounting frame includes two first support rods arranged parallel to each other and two second support rods arranged parallel to each other. The lower end of each second support rod is connected to an extension rod that is angled to the second support rod and extends away from the first support rod. The protective net includes a first net body, a second net body, and a third net body connected in sequence. The two first support rods are connected to each other through the first net body, the upper ends of the first support rods and the upper ends of the second support rods are connected through the second net body, and the upper ends of the second support rods and the extension ends of the extension rods are connected through the third net body.

[0007] When used, this invention is set on the foundation of the embankment of an aquaculture pond. Specifically, the foundation of the aquaculture pond includes a higher embankment, a shallow water area where the embankment meets the water area, a deep water area in the middle of the water area, and a transition area connecting the shallow and deep water areas. After observing and studying the morphology and habits of common birds such as egrets and herons, the inventors found that these birds are accustomed to standing on the edge of the water area and waiting for fish and shrimp to pass by before catching them. Since most birds have legs between 10 and 20 cm long, they can usually only move in the shallow water area within one meter of the shore. The water depth in this area is relatively shallow, which is enough for birds to stand in. Beyond this area, the water depth gradually increases, and most birds cannot stay in it for a long time. Based on the above observations and research results, the inventors have provided the aforementioned bird-proof device for aquaculture ponds. The first and second supports of this device are vertically fixed to the bank. The second support is closer to the shallow water area, and the extension rod extends towards the shallow water area, creating a sloping structure with a third net connecting the end of the extension rod and the upper end of the second support, covering the shallow water area. This prevents birds from standing in the shallow water and also prevents them from standing on the third net. The first and second nets prevent birds from entering the area below the third net from the bank. To maximize the bird-proofing effect, multiple bird-proof devices should be arranged along the edge of the pond, with adjacent devices placed close together to prevent birds from finding a foothold for predation, thus reducing fish and shrimp losses. The bird-proof device provided by this invention has no special requirements regarding the shape or area of ​​the aquaculture pond, can adapt to different types of ponds, and allows for the removal of some bird-proof devices to create pathways for easy access to and from the pond when needed. It also simplifies maintenance, as repairing or replacing a single bird-proof device does not affect the normal operation of other devices.

[0008] Furthermore, both the first and second support rods are provided with support bases at their lower ends.

[0009] Furthermore, the support base includes a support portion connected to the first or second support rod and a reinforcing portion extending outward from the side of the support portion. The bottom of the support portion is connected to a plurality of positioning nails, and the reinforcing portion is provided with through anchoring holes.

[0010] Furthermore, the second support rod and the extension rod are movably hinged, and the extension rod can rotate and fit against the second support rod.

[0011] Furthermore, the first support rod and / or the second support rod have a hollow inner cavity, in which a repellent that can release sound waves or visible light is disposed, or in which a bird repellent is disposed.

[0012] Furthermore, the driveer has a trigger pull rope that extends outward from the hollow inner cavity and connects to the middle of the second net body.

[0013] Furthermore, two parallel limiting rods are connected between the extended ends of the two extended rods, and an interlocking gap is formed between the two limiting rods. One end of the third mesh body passes through the interlocking gap and is connected to the limiting member restricted by the interlocking gap. The third mesh body can slide along the interlocking gap.

[0014] Furthermore, each of the extension rods has a telescopic mechanism that can change its length.

[0015] Furthermore, a first fixing rod is connected between the upper ends of the two first support rods, and a second fixing rod is connected between the upper ends of the two second support rods.

[0016] Furthermore, both the first and second support rods are equipped with hooks, and the protective net is connected to the hooks.

[0017] Furthermore, one of the first support rods has a first connecting part on the side away from the first net body, and the other first support rod has a second connecting part on the side away from the first net body. The first connecting part and the second connecting part can form a detachable fixed connection.

[0018] In summary, the following beneficial effects can be achieved by applying the solution of the present invention:

[0019] 1. After the invention is set up, the first and second nets can prevent birds from entering the shallow water area from the underside of the third net. The third net forms a slope structure with a large slope and covers the shallow water area, which can prevent birds such as egrets and herons from standing on the shallow water area. Since most birds are limited by the length of their two legs and cannot stay and forage in the transition area and deep water area, the loss of fish and shrimp caused by birds preying on each other can be greatly reduced after using this bird prevention device.

[0020] 2. The invention has a simple structure, is easy to install and disassemble, and repairing or replacing a single bird-proof device will not affect the use of other bird-proof devices, which is convenient for later maintenance. In addition, the invention can be folded and rolled up, which greatly reduces the space occupied during storage. The components are not easy to get tangled, making it convenient for multiple uses.

[0021] 3. Compared with the method of covering the aquaculture pond with bird netting, the present invention can reduce the implementation difficulty and has no special requirements on the shape and area of ​​the aquaculture pond, which can meet the bird prevention needs of most aquaculture ponds.

[0022] 4. In some embodiments of the present invention, the extension rod can change its own length, and the third net can adapt to the change in the length of the extension rod through the interlocking seams, so as to change the coverage area of ​​the third net, thereby meeting the bird prevention needs of aquaculture ponds with different terrains.

[0023] 5. In some embodiments of the present invention, bird repellent or deterrents may be installed in the first or second support pole to reduce the probability of birds or other animals approaching. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a bird-proof device for aquaculture ponds in one embodiment;

[0025] Figure 2 for Figure 1 A front view of the embodiment shown;

[0026] Figure 3 This is a schematic diagram of the hook structure;

[0027] Figure 4 for Figure 1 The diagram shows the working state of the embodiment shown.

[0028] Figure 5 This is a schematic diagram of the base structure in another embodiment;

[0029] Figure 6 This is a schematic diagram of the structure of the first and second support rods in another embodiment;

[0030] Figure 7 This is a schematic diagram of the extension rod in another embodiment;

[0031] Figure 8 for Figure 7 A partial sectional view of the structure shown;

[0032] Figure 9 This is a schematic diagram of the internal structure of the first support rod in another embodiment;

[0033] Figure 10 This is a schematic diagram of the combined structure of a bird-proof device for aquaculture ponds in one embodiment;

[0034] Figure 11 for Figure 10 A top view of the structure of the first support rod;

[0035] In the diagram, 1-installation frame, 11, 11a, 11b-first support rod, 111-hook, 112-hollow inner cavity, 113-protective cover, 114-first connecting part, 115-second connecting part, 116-connecting hole, 117-fastener, 12, 12a, 12b-second support rod, 13, 13a, 13b-extension rod, 14-support base, 141-support part, 1411-positioning. Nail, 142-Reinforcement part, 1421-Anchor hole, 15a-First fixing rod, 15b-Second fixing rod, 16-Limiting rod, 161-Interlacing seam, 17a-Bird repellent, 17b-Deterrent device, 2-Protective net, 21-First net body, 22-Second net body, 23-Third net body, 231-Limiting component, F-Foundation, F1-Base bank, F2-Shallow water area, F3-Transition area, F4-Deep water area. Detailed Implementation

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] Example

[0038] like Figures 1-3 As shown, an embodiment of the first aspect of the present invention provides a bird-proof device for aquaculture ponds. The device includes a mounting frame 1 and a protective net 2 connected to the mounting frame. The mounting frame includes two first support rods 11 and two second support rods 12. An extension rod 13 is movably hinged to the lower end of each of the second support rods. The extension rod can rotate through the hinge structure and directly parallel to or form an angle with the second support rod. Figure 1 In use, the first support rods 11a and 11b are set perpendicular to the ground and parallel to each other, the second support rods 12a and 12b are set perpendicular to the ground and parallel to each other, and the extension rod is set on the side of the second support rod away from the first support rod, so that the end of the extension rod can form a greater distance from the first support rod. The extension rods 13a and 13b are parallel to each other; the protective net includes a first net body 21, a second net body 22, and a third net body 23 connected in sequence. The first net body is set between the first support rods 11a and 11b and extends along the axial direction of the first support rod. The two ends of the second net body are respectively connected to the upper ends of the first support rod and the upper ends of the second support rod. The two ends of the third net body are respectively connected to the upper end of the second support rod and the extension end of the extension rod; Figure 3As shown, the first support rod is provided with hooks 111 at both the upper and lower ends, so that the first net can be installed on the first support rod by the hooks. The second support rod and the third support rod can also be connected to the second net and the third net in the same way. Figure 4 The diagram shows the bird-proof device provided in this embodiment in operation. When in use, the bird-proof device is installed on the foundation F at the edge of the aquaculture pond embankment. Specifically, the foundation F of the aquaculture pond includes a higher bank F1, a shallow water area F2 located at the junction of the bank and the water area, a deep water area F4 located in the middle of the water area, and a transition area F3 connecting the shallow and deep water areas. The first support rod 11 and the second support rod 12 of the bird-proof device are vertically fixed to the bank F1, with the second support rod 12 close to the shallow water area F2. The extension rod 13 extends outward from the second support rod to above the shallow water area F2. After the bird-proof device is installed, the first and second nets 22 can prevent birds from entering the shallow water area to forage from below the third net. The third net forms a steep slope structure and covers the shallow water area, preventing egrets, herons, and other birds from standing on it. Placed in shallow water, this bird deterrent device significantly reduces fish and shrimp losses due to bird predation, as most birds are limited by their leg length and cannot forage in transitional or deep water areas. To ensure coverage of shallow water, the extension pole should be at least 50cm long. The bird deterrent device provided in this embodiment can be arranged around the aquaculture pond, with adjacent devices placed close together. It has no special requirements regarding the shape or area of ​​the pond, adapting to different types of ponds. Partial removal of the bird deterrent device creates pathways, facilitating easy access to and from the pond when needed. It also simplifies maintenance, allowing for repairs and replacements of individual devices without affecting the normal operation of others. Furthermore, the bird deterrent device provided in this embodiment is easy to store. Figure 2 As shown, when not in use, the first and second support rods can be brought close together, and the extension rod can be rotated to a position parallel to and aligned with the second support rod. Then, the first support rod, the second support rod, and the extension rod, along with the protective netting, can be rolled up together. After rolling up, the space occupied is small, and the various components are not easily tangled, making it convenient for multiple uses.

[0039] In some embodiments, the lower ends of the first support rod 11 and the second support rod 12 may be provided with a support base 14 having a large support area, so as to facilitate the fixing of the first support rod and the second support rod to the foundation F1. Figure 5A schematic diagram of a support base is shown. The support base 14 includes a support portion 141 connected to a first support rod 11 or a second support rod 12, and a reinforcing portion 142 connected to the side of the support portion and extending outward. The bottom of the support portion 141 is provided with a plurality of positioning nails 1411, which can be driven into the foundation to facilitate the installation of the first support rod 11 or the second support rod 12. The reinforcing portion is provided with anchoring holes 1421, which can be used to further fix the first support rod or the second support rod to the foundation during installation. Usually, for easier installation of anchoring nails, the reinforcing portion 142 should extend away from the second support rod.

[0040] In some implementations, such as Figure 6 As shown, the two first support rods can be connected by a first fixing rod 15a, and the two second support rods can be connected by a second fixing rod 15b, which makes the installation of the first and second support rods more convenient and improves the stability of the first and second support rods after installation.

[0041] In some implementations, such as Figure 7 As shown, two parallel limiting rods 16 are connected between the extension ends of the two extension rods, forming an interlocking slot 161 between them. The end of the third net body 23 moves through the interlocking slot 161 and connects to a limiting member 231, which is larger than the interlocking slot. In the working state, the limiting member also serves as a weight-bearing element, causing the portion of the third net body passing through the interlocking slot to hang down, thus forming an intercepting net on the outside of the extension end of the extension rod, preventing birds from entering the shallow water area F1 from the underside of the extension rod. In a further embodiment, the extension rod is composed of multiple interlocking movable sleeves. The movable sleeves can slide relative to each other, causing the length of the telescopic rod to change. The third net body can slide along the interlocking slot to adapt to the change in the length of the telescopic rod. In this technical solution, when the extension rod is perpendicular to the second support rod, the length of the third net body should be greater than the distance between the extension section of the extension rod and the upper end of the second support rod, preferably 15-30 cm longer than the aforementioned distance. In a further embodiment, the second rod may also be configured as a telescopic structure to adapt to changes in terrain between the base bank and the shallow water area.

[0042] In some implementations, such as Figure 9 As shown, a hollow cavity 112 is formed inside the first support rod, and an object for scaring away birds is disposed in the hollow cavity, for example, in Figure 9 In the embodiment shown in 9-1, a bird repellent is placed inside the hollow cavity. The bird repellent emits an odor that birds dislike, thereby reducing the number of birds approaching. Figure 9 In the embodiment shown in 9-2, a repellent is placed inside the hollow cavity. The repellent can emit light or sound waves to drive away approaching birds or other animals. Figure 9 Figure 9-2 also illustrates one triggering method for the bird deterrent device. The deterrent device has a trigger cord that extends from the hollow inner cavity and is bound to the middle of the second net. When a bird or other animal lands on the second net, the second net presses down and pulls the trigger cord, causing the deterrent device to activate. Compared to noisier sonic cannons, the solution provided in this embodiment can limit the impact to the area where the deterrent device is triggered, thereby reducing the impact on the surrounding environment. Similarly, the bird repellent or deterrent device can also be installed in the second support rod, but the first support rod is relatively closer to the walkway and more convenient to operate, so it is preferred to install it in the first support rod. In addition, different types of bird repellent objects can be installed in the two first support rods of each bird deterrent device, for example, one can be equipped with a bird repellent and the other with a deterrent device.

[0043] In some implementations, multiple bird-proof devices can be assembled using mating structures, improving the overall integrity of the installed bird-proof device, making the installation more stable, and enhancing its wind and rain resistance. Figure 10 and Figure 11 A mating structure is shown, which consists of a first connecting portion 114 formed on the side of the first support rod 11b and a second connecting portion 115 formed on the side of the first support rod 11a. The first connecting portion 114 forms an insertion interface in the middle, and the second connecting portion 115 can be inserted into the insertion interface. After the mating is inserted, the mating structure has a connecting hole 116 that passes through the first connecting portion 114 and the second connecting portion 115. The connecting hole 116 can be connected with a fastener 117 to fix the first connecting portion and the second connecting portion.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bird-proof device for aquaculture ponds, characterized in that: The system includes a mounting frame and a protective net connected to the mounting frame. The mounting frame includes two first support rods arranged parallel to each other and two second support rods arranged parallel to each other. The lower end of each second support rod is connected to an extension rod that is angled to the second support rod and extends away from the first support rod. The protective net includes a first net body, a second net body, and a third net body connected in sequence. The two first support rods are connected by the first net body, the upper ends of the first support rods and the upper ends of the second support rods are connected by the second net body, and the upper ends of the second support rods and the extension ends of the extension rods are connected by the third net body. The lower ends of the first and second support rods are each provided with a support base. The support base includes a support part connected to the first or second support rod and a reinforcing part extending outward from the side of the support part. The bottom of the support is connected to several positioning nails, and the reinforcement part is provided with through anchoring holes; the first support rod and / or the second support rod has a hollow inner cavity, in which a repellent that can release sound waves or visible light is provided, or in which a bird repellent is provided; two parallel limiting rods are connected between the extended ends of the two extension rods, and an interlocking gap is formed between the two limiting rods; one end of the third net passes through the interlocking gap and is connected to a limiting member restricted by the interlocking gap; the third net can slide along the interlocking gap; one of the first support rods has a first connecting part on the side away from the first net, and the other first support rod has a second connecting part on the side away from the first net; the first connecting part and the second connecting part can form a detachable fixed connection.

2. The bird-proofing device for aquaculture ponds according to claim 1, characterized in that: The second support rod and the extension rod are movably hinged, and the extension rod can rotate and fit against the second support rod.

3. The bird-proofing device for aquaculture ponds according to claim 1, characterized in that: The driving device has a trigger pull rope that extends outward from the hollow inner cavity and connects to the middle of the second net body.

4. The bird-proofing device for aquaculture ponds according to claim 1, characterized in that: A first fixing rod is connected between the upper ends of the two first support rods, and a second fixing rod is connected between the upper ends of the two second support rods.

5. A bird-proofing device for aquaculture ponds according to claim 1, characterized in that: Both the first and second support rods are equipped with hooks, and the protective net is connected to the hooks.

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