CN213719402U

CN213719402U - Assembled deep sea fish reef and combined fish reef

Info

Publication number: CN213719402U
Application number: CN202021838574.3U
Authority: CN
Inventors: 吴凯; 龙江峰; 韩好; 杨正宏; 于龙
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-07-20
Anticipated expiration: 2030-08-28

Abstract

The utility model relates to an assembled deep sea fish reef and combination fish reef, deep sea fish reef includes a pair of cross component and 5 stands that set up side by side between two cross components, 5 stands are located four corners and the center department of cross component respectively, are equipped with bolt and nut subassembly between tip of stand and the cross component, and can dismantle the connection through bolt and nut subassembly; the combined fish reef comprises a plurality of assembled deep sea fish reefs. Compared with the prior art, the utility model discloses have better antidumping ability, stability and anti ability of subsiding, friendly with marine environment, can improve and gather the fish effect.

Description

Assembled deep sea fish reef and combined fish reef

Technical Field

The utility model belongs to the technical field of ocean engineering, a assembled deep sea fish reef and combination fish reef is related to.

Background

The marine ranch is based on the principle of a marine ecosystem, and is a fishery mode which is based on the principle that fishery resources can be continuously utilized, constructs or repairs places such as habitats and the like required by marine organism breeding, growth, bait making or enemy avoidance by putting a large number of artificial fish reefs, proliferation and releasing and the like in a specific sea area, proliferates and maintains fishery resources, improves the ecological environment of the sea area and realizes the sustainable utilization of the fishery resources. The strengthening of the construction of the marine ranch can accelerate the adjustment and transformation upgrade of the fishery structure, guarantee the food safety of China, improve the supply level of high-quality protein, maintain aquatic organism resources, restore the marine ecological environment and develop the great marine economy.

Marine ranches are developed earlier and faster in korea, japan, the usa and europe, have a large investment scale, and achieve good economic and ecological benefits, especially as represented by korea and norway. In comparison, the development of marine ranches in China is slow, independent investment projects of enterprises are few, and more serious, independent innovation activity is lacked. China lacks research and innovation on the aspects of novel artificial fish reef structural form and novel artificial fish reef material technology.

The artificial fish reef has the following advantages:

firstly, the construction of artificial fish reefs is a restoration project of marine ecological environment;

providing an ideal place for sheltering deep-sea organisms;

providing attaching medium for marine life;

fourthly, the fishes and the like have the collecting effect on the fish reefs;

the fish reef can also have effect on ocean current environment around the ocean and surrounding geological environment.

The fish reefs are of various types and can be divided into the following types according to purposes: luring and collecting fish reefs, propagation fish reefs, spawning reefs, juvenile fish protection reefs, algal reefs and the like; the material can be divided into: reinforced concrete fish reefs, steel fish reefs, glass fiber reinforced plastic fish reefs, bamboo fish reefs, wooden fish reefs, waste fish reefs and the like; according to the setting position can be divided into: the bottom fish reef, the middle fish reef, the floating fish reef and the like.

After the fish reef is thrown into the sea, a new ecological environment is formed, and the fish reef plays an important role in the propagation and growth of aquatic organisms. The environmental function of the fish reef is embodied in the change of the abiotic environment and the biological environment in the fish reef and the surrounding area. After the fish reef is put in, the abiotic environment of the surrounding sea area changes, and the change causes the change of the biological environment, and the biomass of the fish reef sea area is increased as a result. The upward flow formed after the fish reef is thrown brings nutrient salts in the deep seabed to the upper layer with sufficient illumination, promotes the propagation of plankton, improves the primary productivity of the ocean, simultaneously, the fish reef is used as a substrate, the attachment starts to grow on the surface of the fish reef, and the variety, the quantity and the distribution of benthos and plankton around the fish reef are changed.

At present, the artificial fish reefs put into the marine ranching in China are almost all prepared from common reinforced concrete, and the artificial fish reefs are often unsatisfactory in durability of a fish reef structure due to concrete cracking and early corrosion and expansion of reinforcing steel bars in a seawater corrosion environment. Secondly, in the projects of offshore marine ranches such as south sand islands (with the large-scale development of the south sea islands, the development of the marine ranches will be started quickly and can be put into operation in batches), the scheme of the common reinforced concrete artificial fish reef needs to transport a large amount of common sand stones, fresh water and other raw materials from the continent to the south sand islands (more than 1000 kilometers from the three continents in the south of the sea), and high transportation cost is caused by the long-distance marine transportation of the large amount of raw materials. The artificial fish reef is constructed on the south sand island reef, the material cost is about 10 times of that of continents, and the economy is low. In addition, most of the artificial reefs put in China at present are reinforced concrete frames with the shapes of cubes, cuboids, triangular prisms, frustum pyramids and the like, the reefs mostly have sharp chamfers, the flow resistance of the reefs at the seabed is large, the overturning resistance (when the reefs are put in a hard sandy substrate) and the flow field effect are not ideal, and the frame reefs are not provided with pile foundations, if the reefs are put in the seabed environment with a soft and deep muddy substrate, the integral sinking of the reefs is easy to occur, so that the effective exposed height of the reefs is obviously reduced, and the fish gathering effect of the artificial reefs is greatly reduced.

Therefore, the deep-sea artificial fish reef which has a better fish gathering effect, higher economic applicability and environmental friendliness is developed, the construction cost of the artificial fish reef in the marine ranching of the offshore island reef is reduced, better fishery resource recovery and maintenance, sustainable development and marine ecological environment restoration or protection effects are exerted, and the problems to be solved in the field are urgently solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an assembled deep sea fish reef and combination fish reef. The artificial fish reef has good anti-overturning capability, stability and anti-settling capability, is friendly to marine environment, and can improve the fish gathering effect.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides an assembled deep sea fish reef, this deep sea fish reef includes a pair of cross component and 5 stand that set up side by side between two cross components, 5 stand are located the four corners and the center department of cross component respectively, the tip of stand and cross component between be equipped with bolt and nut subassembly to can dismantle the connection through bolt and nut subassembly.

Further, the cross-shaped member comprises two cross beams which are arranged in a cross mode, and an included angle of 90 degrees is formed between the two cross beams.

Furthermore, the beam is cuboid.

Furthermore, the upright post is in a quadrangular prism shape. The width of the upright post is consistent with that of the cross-shaped member, and the length of the upright post can be the length of the cross-shaped member.

Furthermore, the cross member is provided with a nut through hole, the end part of the upright post is provided with a nut blind hole matched with the nut through hole, and the bolt and nut assembly comprises a cross member nut arranged in the nut through hole, an upright post nut arranged in the nut blind hole and a bolt respectively matched with the cross member nut and the upright post nut.

Furthermore, the cross member nut is positioned at the end part of the nut through hole, the inner diameter of the end part of the nut through hole is larger than the outer diameter of the cross member nut, and a concrete layer is filled between the end part of the nut through hole and the cross member nut.

Furthermore, cross-shaped component nuts are arranged at two ends of the nut through hole.

A combined fish reef comprises a plurality of assembled deep sea fish reefs.

Further, two adjacent assembly type deep sea fish reefs are jointed together through the upright posts, or two adjacent assembly type deep sea fish reefs are jointed through the cross-shaped members and are stacked together.

Furthermore, two adjacent assembly type deep sea fish reefs are detachably connected through screws.

The utility model discloses in the assembled deep sea fish reef, two cross members are the same, run through a hole at the center of cross member and the center of the corresponding 5 stands in four corners, bury the nut to end according to the nut increases the aperture outside cross member hole (so that the nut twists downtheholely, seals up with the concrete, avoids the nut to be corroded by the sea water fast), nut length weak point in cross member thickness (if cross member thickness is too thick, can all place the nut at the both ends in hole). The purpose of this design is that the nut can be screwed into the cross-shaped member and the upright in sequence from the upper end when the structure is assembled, so that the cross-shaped member and the upright are connected and assembled. A total of 5 nuts are embedded per cross member. The length and the section size of the upright post can be determined according to the cross-shaped component in proportion, a nut (which can be embedded in a forming die in advance) is embedded in the center of each end of the upright post, and 2 nuts are embedded in each upright post.

The cross-shaped member and the upright post are both made of concrete, the cementing material can be selected from marine environment-friendly low-alkaline sulphoaluminate cement, and reinforcing steel bars can be added according to the size. The cross-shaped member and the upright post can be assembled into a whole by bolts on the throwing site.

Compared with the prior art, the utility model has the characteristics of it is following: compared with the traditional fish reef, the internal space of the fish reef is larger, so that marine plants are more easily attached, marine animals can conveniently enter and exit, the density is reduced, and sand stone materials are saved; the assembled structure can reduce the transportation difficulty, improves production efficiency, and at input scene simple to operate, a large-scale fish reef can be assembled into with the screw to a plurality of small-size fish reefs, and its less density can improve antidumping ability, stability and anti settlement ability. The marine environment-friendly raw materials can be further selected, have strong marine compatibility, corrosion resistance and high impermeability, and are favorable for attachment and inhabitation of marine organisms. After the service life of the fish reef is finished, the fish reef does not need to be recycled, and the marine environment cannot be damaged.

Drawings

FIG. 1 is a schematic view showing the overall structure of a fabricated deep sea fish reef in example 1;

FIG. 2 is an exploded perspective view of the fabricated deep sea fish reef of example 1;

FIG. 3 is a schematic view showing the overall structure of the combined fish reef in example 1;

the notation in the figure is:

1-cross member, 2-upright post, 3-beam, 4-nut through hole and 5-nut blind hole.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1:

as shown in fig. 1 and 2, the assembly type deep sea fish reef comprises a pair of

cross members

1 and 5 upright columns 2 arranged between the two cross members 1 in parallel, wherein the 5 upright columns 2 are respectively positioned at four corners and the center of the cross members 1, and bolt and nut assemblies are arranged between the end parts of the upright columns 2 and the cross members 1 and are detachably connected through the bolt and nut assemblies.

The cross-shaped member 1 comprises two cross beams 3 arranged crosswise to each other and the two cross beams 3 form an angle of 90 degrees. The beam 3 is rectangular. The upright post 2 is quadrangular.

The cross member 1 is provided with a nut through hole 4, the end part of the upright post 2 is provided with a nut blind hole 5 matched with the nut through hole 4, and the bolt and nut assembly comprises a cross member nut arranged in the nut through hole 4, an upright post nut arranged in the nut blind hole 5 and a bolt matched with the cross member nut and the upright post nut respectively. The cross member nut is positioned at the end part of the nut through hole 4, the inner diameter of the end part of the nut through hole 4 is larger than the outer diameter of the cross member nut, and a concrete layer is filled between the end part of the nut through hole 4 and the cross member nut. Both ends of the nut through hole 4 are provided with cross member nuts.

A modular fish reef shown in fig. 3 comprising a plurality of modular deep sea fish reefs. Two adjacent assembly type deep sea fish reefs are jointed together through the upright posts 2. The adjacent two assembly type deep sea fish reefs are detachably connected through screws.

The proportion of the cross-shaped member 1 and the upright post 2 can be designed according to 1:1, and can also be manufactured according to a proper proportion under the condition of keeping beautiful appearance and practicability, the size of the upright post 2 can be manufactured according to a standard size of 1 meter, and a proper size can also be determined according to actual transportation requirements. The dimensions of the bottom surface of the upright 2 should be kept consistent with the width of the cross-member 1. After the structure is assembled, the combined fish reef can be spliced together to form a combined fish reef and placed in deep sea. The marine life protection base is placed together in a combined mode, like people living together, the house is scattered, and living together of marine life can be added, so that a large-scale small-size marine life protection base is formed.

Above-mentioned artificial fish reef of design like this mainly comprises post and roof beam, so fish reef inner space is bigger than traditional fish reef in the past, changes and adheres to marine plant, and marine animal business turn over is also more convenient, and density reduces, has saved the grit material. The assembled structure can reduce the transportation difficulty, improves production and conveying efficiency, and at the on-the-spot simple to operate of input, also a large-scale fish reef is assembled into with the screw to a plurality of miniature fish reefs, and its less density can improve antidumping ability, stability and anti ability of subsiding.

The cross member 1 and the upright post 2 are both made of concrete, the cementing material can be selected from marine environment-friendly sulphoaluminate cement with the characteristic of low alkalinity, and reinforcing steel bars can be added according to the size of the fish reef. The pH value of the seawater is close to neutral (8.3), and the condition that marine organisms are attached to and grow on the surface of the artificial fish reef concrete is that the pH value of the surface of the artificial fish reef concrete is close to that of the seawater. When the traditional ordinary portland cement is hydrated, a large amount of calcium hydroxide is generated, the pH value is about 13.8, the pH value can be close to the pH value of seawater after the ordinary portland cement is soaked in the ocean for at least 6 months, and the cement can increase the pH value of the surrounding ocean, promote the growth of alkali-resistant organisms and destroy the ecological balance of the seabed. Therefore, the sulphoaluminate cement is a preferred material of the seabed vegetation greening type concrete, has the characteristics of marine environment friendliness, strong marine compatibility, corrosion resistance and high impermeability, and is favorable for marine organisms to attach and inhabit.

Example 2:

in this embodiment, two adjacent fabricated deep sea fish reefs of the combined fish reef are stacked by attaching the cross members 1, and the rest is the same as in embodiment 1.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. The utility model provides an assembled deep sea fish reef, its characterized in that, this deep sea fish reef includes a pair of cross component (1) and 5 stand (2) of setting side by side between two cross components (1), and 5 stand (2) are located the four corners and the center department of cross component (1) respectively, the tip of stand (2) and cross component (1) between be equipped with bolt and nut subassembly to can dismantle the connection through bolt and nut subassembly.

2. The fabricated deep-sea fish reef according to claim 1, wherein the cross-shaped member (1) comprises two cross beams (3) which are arranged to cross each other, and the two cross beams (3) form an included angle of 90 degrees.

3. The fabricated deep-sea fish reef according to claim 2, wherein the cross member (3) has a rectangular parallelepiped shape.

4. The fabricated deep-sea fish reef of claim 1 wherein the pillar (2) is quadrangular.

5. The assembly type deep sea fish reef according to claim 1, wherein the cross member (1) is provided with a nut through hole (4), the end of the stand column (2) is provided with a nut blind hole (5) matched with the nut through hole (4), and the bolt and nut assembly comprises a cross member nut arranged in the nut through hole (4), a stand column nut arranged in the nut blind hole (5) and bolts respectively matched with the cross member nut and the stand column nut.

6. An assembled deep sea fish reef according to claim 5 wherein the cross member nut is located at the end of the nut through hole (4), and the inner diameter of the end of the nut through hole (4) is larger than the outer diameter of the cross member nut, and a concrete layer is filled between the end of the nut through hole (4) and the cross member nut.

7. The fabricated deep-sea fish reef according to claim 6, wherein cross-shaped member nuts are provided at both ends of the nut through-hole (4).

8. A modular fish reef comprising a plurality of modular deep sea fish reefs as claimed in any one of claims 1 to 7.

9. The combination fish reef of claim 8, wherein two adjacent assembled deep sea fish reefs are assembled together by fitting the columns (2) together, or two adjacent assembled deep sea fish reefs are stacked together by fitting the cross members (1) together.

10. The combination fish reef of claim 8, wherein two adjacent assembled deep sea fish reefs are detachably connected by screws.