Oyster reef ecological restoration device capable of being repeatedly used

Abstract

The utility model discloses a reusable oyster reef ecological restoration device which comprises a frame, counterweight grooves, anti-settling plates and a plurality of mesh bags, a plurality of suspension rods are arranged on the frame, the counterweight grooves are fixedly arranged on two sides of the frame, the anti-settling plates are arranged at the bottoms of the counterweight grooves, and the mesh bags are arranged on the suspension rods. And the plurality of mesh bags are arranged on the suspension rod at intervals through hemp ropes. When the oyster reef ecological restoration device is used, the oyster reef ecological restoration device is assembled on the shore, a proper balance weight is selected according to the water flow condition and put into a designated restoration sea area, oyster larvae are automatically attached to the net bag, after the oyster larvae are mature, the hemp rope is broken or cut off through the self gravity of the net bag, and the net bag falls to the seabed to form the oyster reef. Reutilization of the device can be achieved by removing the balance weight of the frame and withdrawing the frame, the use cost is reduced, the oysters grow on the suspended mesh bag and cannot be deposited by sludge, and the survival rate of the oysters is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of oyster reef restoration, in particular to a reusable oyster reef ecological restoration device. Background Art

[0002] Oyster reefs are a type of biological reef system formed by a large number of oysters growing fixedly on the surface of hard substrates. They are widely distributed in temperate estuaries and coastal areas. Oyster reefs have important ecological functions in purifying water, providing habitats, promoting fishery production, protecting biodiversity, and coupling ecosystem energy flow. However, due to the impact of human activities, naturally formed oyster reefs have been destroyed in large numbers and urgently need to be restored through ecological engineering.

[0003] In the prior art, artificial reefs are commonly used to repair the ecology of oyster reefs, such as the ecological oyster reef disclosed in patent CN218773177U, which is fixed to the seabed by the support legs under the base, has strong grip and will not overturn or shift. The entire device is an integrated structure with high stability. However, the device is a disposable structure and cannot be recycled once it is lowered to the seabed, so the cost of use is high; and the oysters grow on the center hole and through hole of the base. Since the base is in contact with the seabed, it is very easy to be covered by silt, resulting in oysters being silted to death and a low survival rate.

[0004] In summary, the existing ecological restoration of oyster reefs needs to be improved. Utility Model Content

[0005] In order to solve the above technical problems, the utility model discloses a reusable oyster reef ecological restoration device, including a frame, a counterweight trough, an anti-settling plate and a plurality of mesh bags. The frame is provided with a plurality of hanging rods, the counterweight trough is fixedly arranged on both sides of the frame, the anti-settling plate is arranged at the bottom of the counterweight trough, and the plurality of mesh bags are arranged on the hanging rods at intervals by hemp ropes.

[0006] Furthermore, a plurality of through holes are provided at intervals on the hanging rod, the upper end of the hemp rope passes through the through holes and is knotted, and the lower end is tied to the mesh bag.

[0007] Furthermore, a concave portion is provided in the middle of the hemp rope.

[0008] Furthermore, each side wall of the counterweight slot is provided with a plurality of mesh holes.

[0009] Furthermore, the mesh bag is filled with oyster shells.

[0010] Furthermore, the counterweight groove is filled with stones.

[0011] The beneficial effects of the utility model are:

[0012] When the oyster reef ecological restoration device of the utility model is used, it is first assembled on the shore, and a suitable counterweight is selected according to the water flow condition and is dropped into a designated restoration sea area, and the oyster larvae automatically attach to the mesh bag, and after the oyster seedlings mature, the hemp rope is broken by the weight of the mesh bag itself or cut with manual assistance, and the mesh bag falls to the seabed to form an oyster reef, and the frame counterweight is removed and the frame is retracted to realize the reuse of the device, thereby reducing the use cost, and the oysters grow on the suspended mesh bag without being silted up by sludge, thereby improving the survival rate of the oysters. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model.

[0016] Reference numerals:

[0017] 1-frame, 2-counterweight slot, 3-anti-settling plate, 4-mesh bag, 5-hanging rod, 6-hemp rope, 7-through hole, 8-concave detail. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like 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 a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] like Figure 1 As shown, the reusable oyster reef ecological restoration device in this embodiment includes a frame 1, a counterweight trough 2, an anti-settling plate 3 and a plurality of mesh bags 4. The frame 1 is made of basalt fiber as a whole, which is an inorganic, environmentally friendly, green, high-performance fiber material with the advantages of high strength, corrosion resistance, and tear resistance. A plurality of hanging rods 5 are provided on the frame 1, and a plurality of mesh bags 4 are arranged on the hanging rods 5 at intervals by hemp ropes 6. The counterweight trough 2 is fixedly arranged on both sides of the frame 1, and the anti-settling plate 3 is arranged at the bottom of the counterweight trough 2. The anti-settling plate 3 is a basalt stone plate, and its surface area is larger than the area of ​​the bottom of the counterweight trough 2, thereby increasing the contact area between the device and the seabed and preventing it from sinking into the mud.

[0022] The counterweight tank 2 is filled with counterweights such as natural stones, and each side wall of the counterweight tank 2 is provided with a plurality of mesh holes to facilitate water flow through, thereby improving the device's ability to resist water flow impact, so as to facilitate stable fixing on the seabed.

[0023] The mesh bag 4 is filled with oyster shells, which can attract oyster seedlings to attach to the mesh bag 4.

[0024] like Figure 2 As shown, a plurality of through holes 7 are provided at intervals on the hanging rod 5, the upper end of the hemp rope 6 passes through the through hole 7 and is knotted, thereby being stuck on the hanging rod 5, and the lower end of the hemp rope 6 is tied to the bag mouth of the net bag 4, thereby hanging the net bag 4 on the hanging rod 5.

[0025] A concave portion 8 is provided in the middle of the hemp rope 6, and the diameter of the concave portion 8 is smaller than that of other parts of the hemp rope 6, and its tensile strength is relatively weak. When the oyster seedlings mature, the gravity of the net bag 4 will increase, causing the hemp rope 6 to break along the concave portion 8. If the hemp rope 6 is not broken, it can be cut manually to make the net bag 4 fall to the seabed to form an oyster reef.

[0026] When the oyster reef ecological restoration device of the utility model is used, it is first assembled on the shore, and a suitable counterweight is selected according to the water flow conditions and dropped into the designated restoration sea area. The oyster larvae automatically attach to the mesh bag 4. After the oyster seedlings mature, the hemp rope 6 is broken by the weight of the mesh bag 4 itself or cut with manual assistance, and the mesh bag 4 falls to the seabed to form an oyster reef. The stones in the counterweight groove 2 are taken out, and the frame 1 is retracted to realize the reuse of the device, thereby reducing the use cost. In addition, the oysters grow on the suspended mesh bag 4 and will not be silted by sludge, thereby improving the survival rate of the oysters.

[0027] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the utility model.

Claims

1. A reusable oyster reef ecological restoration device, characterized in that: It includes a frame, a counterweight trough, an anti-settling plate and a plurality of mesh bags. The frame is provided with a plurality of hanging rods. The counterweight trough is fixedly arranged on both sides of the frame. The anti-settling plate is arranged at the bottom of the counterweight trough. The plurality of mesh bags are arranged on the hanging rods at intervals through hemp ropes.

2. The reusable oyster reef ecological restoration device according to claim 1, characterized in that: The hanging rod is provided with a plurality of through holes at intervals, the upper end of the hemp rope passes through the through holes and is knotted, and the lower end is tied to the net bag.

3. The reusable oyster reef ecological restoration device according to claim 2, characterized in that: A concave portion is provided in the middle of the hemp rope.

4. The reusable oyster reef ecological restoration device according to claim 1, characterized in that: Each side wall of the counterweight groove is provided with a plurality of mesh holes.

5. The reusable oyster reef ecological restoration device according to claim 1, characterized in that: The mesh bag is filled with oyster shells.

6. The reusable oyster reef ecological restoration device according to claim 1, characterized in that: The counterweight groove is filled with stones.

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