CN216474830U - B-type multifunctional ecological fish nest building block and ecological revetment - Google Patents
B-type multifunctional ecological fish nest building block and ecological revetment Download PDFInfo
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- CN216474830U CN216474830U CN202123118006.3U CN202123118006U CN216474830U CN 216474830 U CN216474830 U CN 216474830U CN 202123118006 U CN202123118006 U CN 202123118006U CN 216474830 U CN216474830 U CN 216474830U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
A B-type multifunctional ecological fish nest building block and an ecological revetment relate to the field of water conservancy, ecological restoration and landscape architecture. The utility model provides a current stereoplasm revetment engineering construction techniques exist and can't satisfy aquatic life perches and multiplies, dodges natural enemy and security flood season simultaneously to and the problem of material, energy, information flow and propagation between smooth and easy river and the bank slope. The utility model discloses a plurality of fish nest building block layer is by supreme arranging in proper order down, the crisscross arrangement of the multi-functional ecological fish nest building block of B type that corresponds in two adjacent fish nest building block layers from top to bottom, the cavity and the river of the six prismatic block units of first hole intercommunication of the multi-functional ecological fish nest building block of B type, the cavity of two adjacent six prismatic block units in the second hole intercommunication one deck, the cavity of two adjacent six prismatic block units from top to bottom of third hole intercommunication, the cavity and the bank slope of the six prismatic block units of fourth hole intercommunication. The utility model discloses can smoothly flow and propagate material, energy, information between river and bank slope.
Description
Technical Field
The utility model relates to a water conservancy, ecological remediation and landscape field, concretely relates to multi-functional ecological fish nest building block of B type and ecological revetment.
Background
In the traditional bank protection project, the basic functions of flood control, waterlogging drainage, bank slope stabilization, water and soil loss prevention and control and the like are emphasized. With the progress of recent concrete construction technology, the traditional bank protection engineering is generally limited to use of hard materials such as cast-in-place concrete or masonry. But three-side light phenomenon and some negative effects are generated at the same time, for example, the hard revetment project obstructs the ecosystem function of land and water area environment, so that the diversity of river habitat is damaged, thereby the diversity of biological community is damaged, and the health of river ecosystem is further influenced. In recent years, with the increasing acceptance of the public on the ecological environment protection consciousness, the construction technology of the traditional hard revetment project cannot meet the social requirements. In order to maintain the stability of a river ecosystem and protect the variety of species, the requirements of inhabitation and multiplication of aquatic organisms are considered while better effects are achieved on the aspects of river greening, landscape, hydrophilicity, enhancement of self-purification capacity of a river channel and the like, so that the development of a novel multifunctional ecological fish nest building block has extremely important social significance and ecological value.
In conclusion, the existing hard revetment engineering construction technology has the problems that aquatic organisms cannot inhabit and multiply, natural enemies can be avoided, the flood season can be covered safely, and the flowing and spreading of materials, energy and information between rivers and bank slopes can not be smooth.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving current stereoplasm revetment engineering construction technique and having and can't satisfy aquatic organisms simultaneously and perch and multiply, avoid natural enemy and safe flood passing period to and material, energy, information flow and the problem of propagation between smooth and easy river and the bank slope, and then provide a multi-functional ecological fish nest building block of B type and ecological revetment.
The technical scheme of the utility model is that:
a B-type multifunctional ecological fish nest building block comprises a building block main body 1, wherein the building block main body 1 is a B-type prism block body, the building block main body 1 is composed of two hexagonal prism block body units arranged side by side along the length direction of the building block main body, the two hexagonal prism block body units are respectively a hexagonal prism block body unit 1 and a hexagonal prism block body unit 2, the hexagonal prism block body unit 1 and the hexagonal prism block body unit 2 are distributed in a mirror image mode along the contact surface I-I of the two units, the top surface of each hexagonal prism block body unit is provided with a top surface opening, a cavity communicated with the top surface opening is arranged inside each hexagonal prism block body unit, the front surfaces of the hexagonal prism block body unit 1 and the hexagonal prism block body unit 2 are respectively provided with a first hole 1-1 penetrating through the front part of the building block main body 1, the left side surface and the right side surface of each hexagonal prism block body unit 1 and the right side surface of each hexagonal prism block body unit 2 are respectively provided with a second hole 1-2 penetrating through the left side and the right side parts of the building block main body 1, and the second holes 1-2 on the right side of the hexagonal prism block unit 1 and the second holes 1-2 on the left side of the hexagonal prism block unit 2 form a channel, the bottom surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with a third hole 1-3 penetrating through the bottom of the block body 1, the back surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with a plurality of fourth holes 1-4 penetrating through the back of the block body 1, and the first holes 1-1, the second holes 1-2, the third holes 1-3 and the fourth holes 1-4 are communicated with the inner cavity of the hexagonal prism block unit.
Further, the cavity in the middle of the hexagonal prism block unit is a rectangular cavity or a hexagonal prism cavity.
Further, each surface of the hexagonal prism cavity in the middle of the hexagonal prism block unit is correspondingly parallel to each surface outside the corresponding hexagonal prism block unit.
Furthermore, the hole shapes of the first hole 1-1, the second hole 1-2 and the third hole 1-3 are all rectangular.
Further, the back surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are provided with three fourth holes 1-4.
Further, the hole shape of the fourth holes 1-4 is circular.
Furthermore, the top surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with a plurality of fifth holes 1-5, and the bottom surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with a plurality of sixth holes 1-6 corresponding to the fifth holes 1-5.
Further, the number of the fifth holes 1-5 and the sixth holes 1-6 on the hexagonal prism block units 1 and 2 is three, and the fifth holes 1-5 and the sixth holes 1-6 are cylindrical anchoring holes with the same size.
Furthermore, two energy dissipation inclined planes are symmetrically arranged on two sides of the front faces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 respectively, and an included angle between each energy dissipation inclined plane and the corresponding front face is 105-165 degrees.
An ecological revetment based on the B-type multifunctional ecological fish nest building blocks is formed by sequentially arranging and constructing a plurality of fish nest building block layers from bottom to top, wherein each fish nest building block layer is sequentially provided with a plurality of B-type multifunctional ecological fish nest building blocks from front to back along the horizontal direction, corresponding B-type multifunctional ecological fish nest building blocks in two adjacent fish nest building block layers are arranged in a staggered mode, six prismatic block units 1 of the B-type multifunctional ecological fish nest building blocks in the lower fish nest building block layer are connected with six prismatic block units 2 of the corresponding B-type multifunctional ecological fish nest building blocks in the fish nest building block layer on the upper layer through a plurality of cylindrical anchoring rods, the lower ends of the cylindrical anchoring rods are inserted into fifth holes 1-5 in the top surface of the lower six prismatic block units 1, the upper ends of the cylindrical anchoring rods are inserted into sixth holes 1-6 in the bottom surface of the upper hexagonal prismatic block units 2, at the moment, the first holes 1-1 of the B-type multifunctional ecological fish nest building block are communicated with the cavities of the hexagonal prism block units and a river, the second holes 1-2 are communicated with the cavities of two adjacent hexagonal prism block units in the same layer, the third holes 1-3 are communicated with the cavities of two adjacent hexagonal prism block units up and down, and the fourth holes 1-4 are communicated with the cavities of the hexagonal prism block units and a bank slope.
Compared with the prior art, the utility model has the following effect:
the utility model discloses a multi-functional ecological fish nest building block of B type both can satisfy the requirement of each growth phase of most common river fishes to rivers environmental condition, can make the effectual natural enemy of sheltering from of juvenile fish and safe flood season again, still can smoothly flow and propagate material, energy, information between river and the bank slope. And the B-type multifunctional ecological fish nest building block has the advantages of simple structure, large space utilization rate, convenient construction, contribution to industrial production, reduction of engineering cost, high resource utilization rate, ecological environmental protection, energy conservation, emission reduction and other comprehensive benefits.
Drawings
FIG. 1 is an axonometric view of the B-type multifunctional ecological fish nest building block of the utility model;
FIG. 2 is a front view of the B-type multifunctional ecological fish nest building block of the utility model;
FIG. 3 is a rear view of the B-type multifunctional ecological fish nest building block of the utility model;
FIG. 4 is a top view of the B-type multifunctional ecological fish nest building block of the utility model;
FIG. 5 is a bottom view of the B-type multifunctional ecological fish nest building block of the utility model;
fig. 6 is a left side view of the B-type multifunctional ecological fish nest building block of the utility model.
Detailed Description
The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 6, and the B-type multifunctional ecological fish nest building block of the embodiment comprises a building block main body 1, wherein the building block main body 1 is a B-type prism block, the building block main body 1 is composed of two hexagonal prism block units arranged side by side along the length direction of the building block main body, the two hexagonal prism block units are respectively a hexagonal prism block unit 1 and a hexagonal prism block unit 2, the hexagonal prism block units 1 and the hexagonal prism block units 2 are distributed in a mirror image manner along contact surfaces I-I of the two units, a top surface opening is arranged on the top surface of each hexagonal prism block unit, a cavity communicated with the top surface openings is arranged inside each hexagonal prism block unit, the front surfaces of each hexagonal prism block unit 1 and each hexagonal prism block unit 2 are respectively provided with a first hole 1-1 penetrating through the front part of the building block main body 1, and the left and right side surfaces of each hexagonal prism block unit 1 and each hexagonal prism block unit 2 are respectively provided with a second hole penetrating through the left and right side parts of the building block main body 1 1-2, a channel is formed by a second hole 1-2 on the right side of the hexagonal prism block unit 1 and a second hole 1-2 on the left side of the hexagonal prism block unit 2, third holes 1-3 penetrating through the bottom of the block body 1 are formed in the bottom surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2, a plurality of fourth holes 1-4 penetrating through the back of the block body 1 are formed in the back surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2, and the first holes 1-1, the second holes 1-2, the third holes 1-3 and the fourth holes 1-4 are communicated with an inner cavity of the hexagonal prism block unit.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 6, and the cavity in the middle of the hexagonal prism block unit of the present embodiment is a rectangular cavity or a hexagonal prism cavity. So set up, hexagonal prism block unit's cavity both can be used for satisfying the demand that aquatic organisms perch and multiply, still can make the effectual natural enemy of dodging of juvenile fish and safe flood passing season. When the cavity is processed into a rectangular cavity, the processing and the manufacturing are convenient; when the cavity is processed into a hexagonal prism cavity, the space waste can be avoided, the self strength of the B-type multifunctional ecological fish nest building block is ensured, the volume of the cavity is increased as much as possible, and a larger space is provided for young fishes to avoid natural enemies. Other components and connections are the same as in the first embodiment.
The top surface opening size and the hole shape of the hexagonal prism block unit of the present embodiment are the same as the cavity of the hexagonal prism block unit.
The third concrete implementation mode: in the present embodiment, each surface of the hexagonal prism cavity in the central part of the hexagonal prism block unit and each surface of the outer part of the corresponding hexagonal prism block unit are parallel to each other, as described with reference to fig. 1 to 6. So set up, when the cavity is processed into hexagonal prism cavity, can avoid extravagant space, when guaranteeing the multi-functional ecological fish nest building block of B type self intensity, increase the cavity volume as far as possible, hide natural enemy for the juvenile fish and provide bigger space. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: referring to fig. 1 to 6, the first hole 1-1, the second hole 1-2 and the third hole 1-3 of the present embodiment are rectangular. So set up, the convenient processing of rectangle hole when guaranteeing cavity and the cavity, the river and the bank slope intercommunication of adjacent hexagonal prism block unit of hexagonal prism block unit, can also improve product machining efficiency, practices thrift the processing cost. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 1 to 6, the present embodiment is described, and the rear surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 of the present embodiment are provided with three fourth holes 1 to 4. With the arrangement, the fourth holes 1-4 are communicated with the cavities of the hexagonal prism block units and the bank slope, so that the flow and the propagation of materials, energy and information between the river and the bank slope can be smooth. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: the fourth holes 1 to 4 of the present embodiment have a circular hole shape, which is described with reference to fig. 1 to 6. With the adoption of the arrangement, the round holes are convenient to process, the cavities of the hexagonal prism block units are communicated with the bank slope, the product processing efficiency can be improved, and the processing cost is saved. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The seventh embodiment: referring to fig. 1 to 6, the top surfaces of the hexagonal prism block units 1 and 2 of the present embodiment are provided with a plurality of fifth holes 1-5, and the bottom surfaces of the hexagonal prism block units 1 and 2 are provided with a plurality of sixth holes 1-6 corresponding to the fifth holes 1-5. So set up, lie in the hexagonal prism block unit 1 of the multi-functional ecological fish nest building block of B type in the fish nest block layer of lower floor and lie in and connect through a plurality of cylindrical anchor bars between the hexagonal prism block unit 2 of the multi-functional ecological fish nest building block of B type that corresponds in the fish nest block layer of one deck above that. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: referring to fig. 1 to 6, the number of the fifth holes 1 to 5 and the sixth holes 1 to 6 in the hexagonal prism block unit 1 and the hexagonal prism block unit 2 is three, and the fifth holes 1 to 5 and the sixth holes 1 to 6 are cylindrical anchoring holes having the same size. So set up, guaranteed the joint strength between the multi-functional ecological fish nest building block of B type and the structural stability of the ecological revetment of building. Other compositions and connection relationships are the same as those of embodiment one, two, three, four, five, six or seven.
The specific implementation method nine: referring to fig. 1 to 6, the present embodiment is described, two energy dissipation inclined planes are symmetrically arranged on two sides of the front surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 of the present embodiment, and an included angle between each energy dissipation inclined plane and the corresponding front surface is 105 ° to 165 °. According to the arrangement, the included angle between the energy dissipation inclined plane and the corresponding front face is preferably 150 degrees, the energy dissipation inclined planes are processed on the two sides of the front faces of the hexagonal prism block units 1 and the hexagonal prism block units 2 for the purpose of energy dissipation, when the B-type multifunctional ecological fish nest building block constructs an ecological bank protection project, kinetic energy of part of water can be gradually eliminated after upstream water flows pass through the energy dissipation inclined planes, and the requirements of most common river fishes on water flow environmental conditions in various growth periods can be met. Other compositions and connection relations are the same as those of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment, the fifth embodiment, the sixth embodiment, the seventh embodiment or the eighth embodiment.
The specific implementation mode is ten: the embodiment is described with reference to fig. 1 to 6, and the ecological revetment based on the B-type multifunctional ecological fish nest building blocks of the embodiment is constructed by sequentially arranging a plurality of fish nest building block layers from bottom to top, wherein a plurality of B-type multifunctional ecological fish nest building blocks are sequentially arranged on each fish nest building block layer from front to back along the horizontal direction, corresponding B-type multifunctional ecological fish nest building blocks in two adjacent fish nest building block layers are arranged in a staggered manner, wherein the six-prism block units 1 of the B-type multifunctional ecological fish nest building blocks in the lower fish nest building block layer are connected with the six-prism block units 2 of the corresponding B-type multifunctional ecological fish nest building blocks in the upper fish nest building block layer through a plurality of cylindrical anchoring rods, the lower ends of the cylindrical anchoring rods are inserted into fifth holes 1-5 on the top surface of the lower six-prism block units 1, the upper end of the cylindrical anchoring rod is inserted into sixth holes 1-6 in the bottom surface of the hexagonal prism block unit 2 on the upper layer, at the moment, the first holes 1-1 of the B-type multifunctional ecological fish nest block are communicated with cavities of the hexagonal prism block units and a river, the second holes 1-2 are communicated with cavities of two adjacent hexagonal prism block units in the same layer, the third holes 1-3 are communicated with cavities of two adjacent hexagonal prism block units up and down, and the fourth holes 1-4 are communicated with cavities of the hexagonal prism block units and a bank slope. By the arrangement, when the B-type multifunctional ecological fish nest building block is constructed into an ecological revetment project, two adjacent layers of fish nest building blocks are arranged in a regular staggered manner, the fifth holes 1-5 of two adjacent units of two adjacent fish nest building blocks in the same layer and the sixth holes 1-6 of one B-type multifunctional ecological fish nest building block in the previous layer are respectively correspondingly superposed, and anchoring is carried out by inserting the cylindrical anchoring rod, so that the connection strength between the B-type multifunctional ecological fish nest building blocks and the structural stability of the constructed ecological revetment are ensured. Other compositions and connections are the same as those of the first, second, third, fourth, fifth, sixth, seventh, eighth or ninth embodiment.
When the bank slope is a plane, the back surface of the ecological bank protection is also a plane, and the lower surfaces and the top surfaces of the B-type multifunctional ecological fish nest building blocks in the two adjacent fish nest building block layers up and down are arranged in a superposition manner, so that the back surface of the constructed ecological bank protection is consistent with the bank slope;
when the bank slope is an inclined plane, the back surface of the ecological bank protection is also an inclined plane, and the lower surfaces and the top surfaces of the B-type multifunctional ecological fish nest building blocks in the two adjacent fish nest building block layers at the upper part and the lower part are arranged in a staggered manner, so that the back surface of the constructed ecological bank protection is consistent with the bank slope;
the shapes, sizes, numbers and positions of the fifth holes 1-5 on the top surface of the lower hexagonal prism block unit 1 and the sixth holes 1-6 of the upper hexagonal prism block unit 1 can be processed according to actual conditions.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a multi-functional ecological fish nest building block of B type which characterized in that: the building block comprises a building block main body (1), wherein the building block main body (1) is a B-type prism block body, the building block main body (1) is composed of two hexagonal prism block units arranged side by side along the length direction of the building block main body, the two hexagonal prism block units are respectively a hexagonal prism block unit 1 and a hexagonal prism block unit 2, the hexagonal prism block units 1 and the hexagonal prism block units 2 are distributed in a mirror image mode along the contact surfaces I-I of the two units, the top surface of each hexagonal prism block unit is provided with a top surface opening, a cavity communicated with the top surface opening is arranged in each hexagonal prism block unit, the front surfaces of the hexagonal prism block units 1 and the hexagonal prism block units 2 are respectively provided with a first hole (1-1) penetrating through the front part of the building block main body (1), the left side surface and the right side surface of each hexagonal prism block unit 1 and the right side surface of each hexagonal prism block unit 2 are respectively provided with a second hole (1-2) penetrating through the left side and the right side parts of the building block main body (1), and a channel is formed by a second hole (1-2) on the right side of the hexagonal prism block unit 1 and a second hole (1-2) on the left side of the hexagonal prism block unit 2, the bottom surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with a third hole (1-3) penetrating through the bottom of the block main body (1), the back surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with a plurality of fourth holes (1-4) penetrating through the back of the block main body (1), and the first hole (1-1), the second hole (1-2), the third hole (1-3) and the fourth holes (1-4) are communicated with the inner cavity of the hexagonal prism block unit.
2. The B-type multifunctional ecological fish nest building block of claim 1, characterized in that: the cavity in the middle of the hexagonal prism block unit is a rectangular cavity or a hexagonal prism cavity.
3. The B-type multifunctional ecological fish nest building block of claim 2, characterized in that: and each surface of the hexagonal prism cavity in the middle of the hexagonal prism block unit is correspondingly parallel to each surface outside the corresponding hexagonal prism block unit.
4. The B-type multifunctional ecological fish nest building block of claim 3, characterized in that: the hole shapes of the first hole (1-1), the second hole (1-2) and the third hole (1-3) are all rectangular.
5. The B-type multifunctional ecological fish nest building block of claim 4, characterized in that: the back surfaces of the hexagonal prism block unit 1 and the hexagonal prism block unit 2 are respectively provided with three fourth holes (1-4).
6. The B-type multifunctional ecological fish nest building block of claim 5, characterized in that: the hole shape of the fourth holes (1-4) is circular.
7. The B-type multifunctional ecological fish nest building block of claim 6, which is characterized in that: the top surfaces of the hexagonal prism block units 1 and 2 are provided with a plurality of fifth holes (1-5), and the bottom surfaces of the hexagonal prism block units 1 and 2 are provided with a plurality of sixth holes (1-6) corresponding to the fifth holes (1-5).
8. The B-type multifunctional ecological fish nest building block of claim 7, wherein: the number of the fifth holes (1-5) and the sixth holes (1-6) in the hexagonal prism block units 1 and 2 is three, and the fifth holes (1-5) and the sixth holes (1-6) are cylindrical anchoring holes with the same size.
9. The B-type multifunctional ecological fish nest building block of claim 8, characterized in that: two energy dissipation inclined planes are symmetrically arranged on two sides of the front faces of the hexagonal prism block units 1 and the hexagonal prism block units 2 respectively, and the included angle between each energy dissipation inclined plane and the corresponding front face is 105-165 degrees.
10. An ecological revetment based on the type-B multifunctional ecological fish nest building block of claim 9, characterized in that: the ecological revetment is formed by sequentially arranging and constructing a plurality of B-type multifunctional ecological fish nest building blocks from bottom to top in a horizontal direction, wherein a plurality of B-type multifunctional ecological fish nest building blocks are sequentially arranged in each fish nest building block layer from front to back in the horizontal direction, the corresponding B-type multifunctional ecological fish nest building blocks in two adjacent fish nest building block layers are arranged in a staggered manner, a hexagonal prism block unit 1 of the B-type multifunctional ecological fish nest building block in the lower fish nest building block layer is connected with a hexagonal prism block unit 2 of the corresponding B-type multifunctional ecological fish nest building block in the fish nest building block layer on the upper layer through a plurality of cylindrical anchoring rods, the lower ends of the cylindrical anchoring rods are inserted into fifth holes (1-5) on the top surface of the hexagonal prism block unit 1 on the lower layer, the upper ends of the cylindrical anchoring rods are inserted into sixth holes (1-6) on the bottom surface of the hexagonal prism block unit 2 on the upper layer, at the moment, a first hole (1-1) of the B-type multifunctional ecological fish nest building block is communicated with a cavity of a hexagonal prism block unit and a river, a second hole (1-2) is communicated with cavities of two adjacent hexagonal prism block units in the same layer, a third hole (1-3) is communicated with cavities of two adjacent hexagonal prism block units up and down, and a fourth hole (1-4) is communicated with cavities of the hexagonal prism block units and a bank slope.
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| CN202123118006.3U CN216474830U (en) | 2021-12-13 | 2021-12-13 | B-type multifunctional ecological fish nest building block and ecological revetment |
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| CN202123118006.3U CN216474830U (en) | 2021-12-13 | 2021-12-13 | B-type multifunctional ecological fish nest building block and ecological revetment |
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