Artificial fish reef capable of automatically dredging

Abstract

According to the technical scheme, the artificial fish reef capable of automatically dredging comprises a fish reef body, a plurality of first overflowing holes are formed in the front face and the back face of the fish reef body, a plurality of second overflowing holes are formed in the upper face and the lower face of the fish reef body, and third overflowing holes are formed in the right face and the left face of the fish reef body. Fixing columns are arranged in the centers of the third overflowing holes and connected with the fish reef body through first connecting rods, springs are arranged on the fixing columns, a central spiral column is arranged between the fixing columns at the two ends, the springs are arranged on the outer surface of the central spiral column in a sleeving mode, and the central spiral column is in sliding fit with the central column. And spiral blades are arranged on the outer surface of the central column. The fish reef has the advantages that the artificial sludge cleaning period can be prolonged, the sludge cleaning cost is reduced, no external power source is needed, and energy conservation and environmental protection are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the artificial fish reef technical field especially relates to an automatic dredging artificial fish reef. BACKGROUND

[0002] In recent years, due to the pollution of marine environment and the overfishing of human, the survival and reproduction of marine organisms, fish and plants are seriously threatened, which seriously affects the marine ecological system. The core idea of ecological sea embankment is firstly to ensure the safety of the embankment, to consume part of storm surge energy by using natural or artificial block structure, and to assist the hard sea embankment to resist water and wave; Secondly, to reduce the damage of wave scouring to the embankment foot, and to protect the hard structure itself; Finally, to promote ecological restoration and provide artificial auxiliary survival and reproduction sites for marine organisms, and to improve the service function of the coastal ecological system. Artificial fish reefs can improve the ecological environment of the sea area, provide food, shelter, growth and reproduction places for fish and marine organisms, and create a good marine habitat. However, the traditional artificial fish reefs are usually submerged in seawater for a long time, and when storm surge attacks, a large amount of silt will accumulate in the fish reefs, which will greatly reduce the index of the empty space rate and the surface area rate of the fish reefs, even below the standard value, resulting in the gradual loss of the basic function and effect of the fish reefs. At present, the common dredging method for ordinary artificial fish reefs is to lift the whole fish reef group and remove the silt by manual dredging. However, the number of fish reef groups is usually 20~30, and manual cleaning is extremely labor-intensive, material-intensive and cost-intensive, and the efficiency is very low. Moreover, for the high storm surge area, this cleaning method is more complicated. Considering the high labor cost at present, the lifting equipment and transportation equipment all need to consume energy, and the carbon emission is more, which is contrary to the current concept of environmental protection, low carbon and energy saving. SUMMARY

[0003] In view of the low dredging efficiency and high cost of the prior art, the utility model provides an automatic dredging artificial fish reef, and the technical scheme is as follows: the utility model discloses an artificial fish reef, which comprises a fish reef body, a plurality of first flow holes are formed on the front and back surfaces of the fish reef body, a plurality of second flow holes are formed on the upper and lower surfaces of the fish reef body, a plurality of third flow holes are formed on the right and left surfaces of the fish reef body, a fixed column is arranged at the center of each third flow hole, the fixed column is connected with the fish reef body through a first connecting rod, a spring is arranged on the fixed column, a center spiral column is arranged between the two ends of the fixed column, the spring is sleeved outside the surface of the center spiral column, the center spiral column is in sliding fit with the center column, and helical blades are arranged on the surface of the center column.

[0004] As a preferred scheme, the helical blades are fixedly connected with the center column through a second connecting rod.

[0005] As a preferred scheme, the helical blades are in a spiral blade structure, and adjacent blades are symmetrically arranged.

[0006] As a preferred solution, the first flow hole and the second flow hole are trapezoidal structures, and the total flow area of the first flow hole and the second flow hole of each face is equal.

[0007] As a preferred solution, the central spiral column is a double spiral structure.

[0008] As a preferred solution, the upper and lower faces of the fish reef body are provided with a plurality of connecting rings.

[0009] As a preferred solution, the lower face of the fish reef body is provided with a plurality of fixing spines.

[0010] The fish reef has the advantages that:

[0011] (1) The spiral blades of the fish reef can drive the central column to rotate when the sea water rises and recedes, and the water flow is disturbed to form a vortex, which can clean part of the silt and increase the silt cleaning period;

[0012] (2) The springs sleeved on the two ends of the central column are used to convert the kinetic energy of the linear motion of the central column into elastic potential energy when the sea water rises and recedes, and then the elastic potential energy is converted into the kinetic energy of the linear motion of the central column, which helps the central column to rotate linearly reciprocatingly inside the fish reef, and increases the silt cleaning efficiency;

[0013] (3) The fish reef does not need to be additionally provided with a power source, and relies on the tidal energy of the sea water rising and receding as the power source, which is energy-saving and environment-friendly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a schematic view of the overall structure of the utility model.

[0015] Fig. 2 It is a schematic view of the bottom perspective structure of the utility model.

[0016] Fig. 3 It is a schematic view of the central column structure of the utility model.

[0017] In the drawing: 1, fish reef body; 2, first connecting rod; 3, fixed column; 4, connecting ring; 5, first flow hole; 6, second flow hole; 7, third flow hole; 8, spiral blade; 9, second connecting rod; 10, central column; 11, central spiral column; 12, fixing spine; 13, spring. DETAILED DESCRIPTION

[0018] The utility model will be described in further detail below according to the drawings and specific embodiments.

[0019] EMBODIMENT

[0020] As Figs. 1-3The utility model provides an automatic dredging artificial reef, including artificial reef body 1, the front and back of artificial reef body 1 are equipped with a plurality of first flow holes 5, the top and bottom are equipped with a plurality of second flow holes 6, the right side and left side are equipped with third flow holes 7, the center of third flow holes 7 is equipped with fixed column 3, fixed column 3 is connected with artificial reef body 1 through first connecting rod 2, fixed column 3 is equipped with spring 13, and the both ends of fixed column 3 are equipped with center spiral column 11, spring 13 is sleeved on the outer surface of center spiral column 11, center spiral column 11 is slidably connected with center column 10, and the outer surface of center column 10 is equipped with spiral blade 8.

[0021] Further, the spiral blade 8 is fixedly connected with the center column 10 through the second connecting rod 9.

[0022] Further, the spiral blade 8 is a spiral blade structure, and adjacent blades are symmetrically arranged.

[0023] Further, the first flow hole 5 and the second flow hole 6 are trapezoidal structures, and the total flow area of the first flow hole 5 and the second flow hole 6 on each surface is equal.

[0024] Further, the center spiral column 11 is a double spiral structure.

[0025] Further, the upper and lower surfaces of the artificial reef body 1 are provided with two connecting rings 4.

[0026] Further, the lower surface of the artificial reef body 1 is provided with four fixed spines 12.

[0027] The artificial reef has the following use process: a plurality of artificial reefs are placed on a shoal, the fixed spines 12 are inserted into the shoal to fix the artificial reef bodies 1, the artificial reef bodies 1 are connected in series by the connecting rings 4 through a rope to form a reef group, and when the tide rises and recedes, the impact of the sea waves makes the spiral blade 8 drive the center column 10 to rotate and move linearly on the center spiral column 11. The basic principle is as follows: the upper surface of the spiral blade 8 is designed to be convex, when it rotates, according to Bernoulli's principle, the air flow speed on the upper surface is accelerated, the pressure is reduced, the air flow speed on the lower surface is slow, and the pressure is large, and the pressure difference makes the structure body keep rotating; the rotating object is unbalanced, and the unbalance will cause the object to rotate and move linearly on the center spiral column 11 through specific design; under the condition that no external object provides momentum, the spiral blade 8 converts angular momentum into linear momentum through its unique mechanical structure, so as to realize movement; under the assistance of the spring 13, kinetic energy and elastic potential energy are converted into each other, so that the spiral blade 8 and the center column 10 reciprocate, and eddy current is generated in the movement process, the eddy current disperses silt and carries it out of the inside of the artificial reef body 1, so that the inside of the artificial reef is kept clean, the period of artificial silt cleaning is increased, and the cleaning cost is reduced.

Claims

1. An automatically dredging artificial reef, comprising a reef body (1), characterized in that, The reef body (1) has several first flow holes (5) on the front and back sides, several second flow holes (6) on the top and bottom sides, and third flow holes (7) on the right and left sides. A fixed post (3) is provided at the center of the third flow hole (7). The fixed post (3) is connected to the reef body (1) through the first connecting rod (2). A spring (13) is provided on the fixed post (3). A central spiral post (11) is provided between the two fixed posts (3). The spring (13) is sleeved on the outer surface of the central spiral post (11). The central spiral post (11) and the central post (10) are in sliding fit. A spiral blade (8) is provided on the outer surface of the central post (10).

2. The automatically dredging artificial reef according to claim 1, characterized in that, The spiral blade (8) is fixedly connected to the central column (10) via the second connecting rod (9).

3. The automatically dredging artificial reef according to claim 1, characterized in that, The spiral blade (8) has a spiral plate structure and the adjacent blades are symmetrically arranged.

4. The automatically dredging artificial reef according to claim 1, characterized in that, The first flow passage (5) and the second flow passage (6) are trapezoidal structures, and the total flow area of ​​the first flow passage (5) and the second flow passage (6) on each side is equal.

5. The automatically dredging artificial reef according to claim 1, characterized in that, The central spiral column (11) has a double spiral structure.

6. The automatically dredging artificial reef according to claim 1, characterized in that, The artificial reef body (1) is provided with several connecting rings (4) on its upper and lower surfaces.

7. The automatically dredging artificial reef according to claim 1, characterized in that, The artificial reef body (1) is provided with several fixed spikes (12) on its underside.

Images