CN215801390U - Assembled check stem and revetment structure - Google Patents
Assembled check stem and revetment structure Download PDFInfo
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- CN215801390U CN215801390U CN202121477756.7U CN202121477756U CN215801390U CN 215801390 U CN215801390 U CN 215801390U CN 202121477756 U CN202121477756 U CN 202121477756U CN 215801390 U CN215801390 U CN 215801390U
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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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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Abstract
The utility model provides an assembled lattice stem and revetment structure, and belongs to the technical field of river revetment construction. The assembled grid comprises a plurality of grid blocks and at least one connecting screw. A plurality of check stalk pieces all are the column, and arrange in proper order along the extending direction on river bank, and check stalk piece both ends on length direction all have the spread groove, are provided with the anchor board in the spread groove. The surface of each anchoring plate is provided with a connecting screw hole, and the connecting screw holes on the two anchoring plates of each grid stem block are coaxially arranged. The connecting screw rods are arranged in the connecting grooves of the two adjacent grid stem blocks, one end of each connecting screw rod is in bolted connection with the connecting screw hole in the anchoring plate in one of the connecting grooves, and the other end of each connecting screw rod is in bolted connection with the connecting screw hole in the anchoring plate in the other connecting groove.
Description
Technical Field
The utility model relates to the technical field of river bank protection construction, in particular to an assembled lattice stem and a bank protection structure.
Background
At present, most of hydraulic engineering, especially river regulation engineering, adopts a hard revetment structure, the hard revetment refers to a structure body which is composed of hard stones or concrete materials and is completely isolated from a soil body, and the hard revetment mainly comprises several forms of grouted or dry stone revetment, cast-in-place concrete revetment, precast concrete block revetment and the like. Soil bodies on two sides of the river channel are isolated from river water through the hard revetment structure, so that water and soil loss or collapse of the soil bodies on the river bank are avoided. And for the top of stereoplasm bank protection structure, bottom or ramp take place local destruction and initiate chain reaction, set up concrete check or stone setting of grout check usually every 8 ~ 10m between bank and river water, separate the stereoplasm bank protection structure for a plurality of regions, conveniently maintain and fill.
In the related art, the lattice is generally arranged along the extending direction of the river, and concrete is cast and buried on the site of the river bank according to the path planned by the drawing.
Adopt cast in situ and the check stalk buried underground, need set up the formwork in the scene in order to guarantee the construction instruction, still need transport a large amount of concrete to the scene simultaneously and stir and dispose, the cost height and the period of construction of transportation and construction lead to the whole work efficiency of river course revetment to hang down.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an assembled lattice stem and revetment structure, which can be prefabricated in a centralized manner before on-site embedding construction, is simple to assemble and can effectively improve the overall construction efficiency of river revetment construction. The technical scheme is as follows:
in a first aspect, embodiments of the present invention provide a fabricated lattice comprising a plurality of lattice blocks and at least one connecting screw,
the grid stem blocks are all columnar and are sequentially arranged along the extending direction of a river bank, connecting grooves are formed in the two ends of each grid stem block in the length direction, anchoring plates are arranged in the connecting grooves and fixedly connected with the groove walls of the connecting grooves, connecting screw holes are formed in the plate surfaces of the anchoring plates, the connecting screw holes in the two anchoring plates of each grid stem block are coaxially arranged,
the connecting screw rods are arranged in the connecting grooves of two adjacent grid stem blocks, one end of each connecting screw rod is connected with the connecting screw hole bolt on the anchoring plate in one connecting groove, and the other end of each connecting screw rod is connected with the connecting screw hole bolt on the anchoring plate in the other connecting groove.
Optionally, the check stem block is the cuboid, the check stem block is including first side and the second side that is located the both ends on the length direction, and is located first side with third side, fourth side, fifth side and the sixth side between the second side, the third side the fourth side the fifth side with the sixth side is perpendicular connection in proper order, the spread groove is located respectively first side with on the second side.
Optionally, a plurality of connecting grooves are arranged on each of the first side surface and the second side surface.
Optionally, the connecting groove is communicated with one of the third side surface, the fourth side surface, the fifth side surface and the sixth side surface.
Optionally, the assembled lattice further comprises a filler filled in the connection groove and covering the anchoring plate and the connection screw.
Optionally, the filler element is a fine-grained concrete structure.
Optionally, the anchoring plate comprises a first plate section and a second plate section which are connected with each other, the connecting screw hole is located on the first plate section, and the second plate section is embedded in the grid block.
Optionally, the length of the peduncle block ranges from 1m to 2 m.
Optionally, the anchor plate is a steel plate.
In a second aspect, the utility model provides a revetment structure comprising modular grid segments as described in the first aspect, said revetment structure comprising at least two of said modular grid segments spaced along a slope of said river bank.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:
according to the length and the route of the planned bank protection structure of the river bank, a plurality of grid blocks are arranged end to end along the length direction and are sequentially arranged along the extending direction of the river bank. The connecting grooves in the end parts of the two adjacent grid stem blocks are arranged in a butt joint mode, the two connecting grooves are internally provided with fixedly connected anchoring plates, and connecting screw holes in the two anchoring plates in the connecting grooves at the two ends of each grid stem block are coaxially arranged, so that the connecting screw holes in the anchoring plates in the two connecting grooves arranged in a butt joint mode can be coaxially arranged after correction. And finally, the two ends of the connecting screw rod are respectively connected with connecting screw holes on the anchoring plates in the two connecting grooves which are arranged in an opposite mode through bolts, so that the two adjacent grid stem blocks are fixedly connected. Through all adopting two liang of fixed connection in proper order of this mode with a plurality of check stem blocks on the extending direction of river bank, accomplish the equipment of assembled check stem and finally bury underground at the waterside edge of river bank, realize the partition to stereoplasm bank protection structure.
This assembled check stalk sets up the check stalk of conventional stereoplasm shore protection structure into the type of components of a whole that can function independently equipment, can concentrate the prefabrication before burying the construction underground at the scene, need not the scene and pour, has saved the transportation and the modulation process of check stalk raw and other materials such as concrete, and the assembly is simple simultaneously, also need not the scene and sets up the formwork and carry out supplementary construction, can effectively improve the whole efficiency of construction of river course shore protection construction.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic sectional view of a partial structure of an assembled lattice stem provided in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front view structure of a peduncle block provided by an embodiment of the utility model;
FIG. 3 is a schematic left-view structural diagram of a peduncle block provided by an embodiment of the utility model;
FIG. 4 is a schematic view of a connection structure of a connection screw and an anchoring plate according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a revetment structure according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the related art, the lattice is generally arranged along the extending direction of the river, and concrete is cast and buried on the site of the river bank according to the path planned by the drawing.
Adopt cast in situ and the check stalk buried underground, need set up the formwork in the scene in order to guarantee the construction instruction, still need transport a large amount of concrete to the scene simultaneously and stir and dispose, the cost height and the period of construction of transportation and construction lead to the whole work efficiency of river course revetment to hang down.
Fig. 1 is a schematic sectional view of a partial structure of an assembled lattice stem according to an embodiment of the present invention. Fig. 2 is a schematic front view of a peduncle block according to an embodiment of the present invention. Fig. 3 is a left-view structural schematic diagram of a peduncle block provided by an embodiment of the utility model. Fig. 4 is a schematic view of a connection structure of a connection screw and an anchor plate according to an embodiment of the present invention. Fig. 5 is a schematic structural diagram of a revetment structure according to an embodiment of the present invention. As shown in fig. 1 to 5, by practice, the applicant provides a fabricated stem comprising a plurality of stem blocks 1 and at least one connecting screw 2.
Wherein, a plurality of check stalk pieces 1 all are the column, and arrange in proper order along the extending direction of river bank. The two ends of the grid stem block 1 in the length direction are respectively provided with a connecting groove 11, an anchoring plate 111 is arranged in the connecting groove 11, and the anchoring plate 111 is fixedly connected with the groove wall of the connecting groove 11. The anchor plates 111 have coupling screw holes 1111 on the plate surfaces, and the coupling screw holes 1111 on the two anchor plates 111 of each stem block 1 are coaxially arranged.
The connecting screw rod 2 is arranged in the connecting groove 11 of two adjacent grid block 1. One end of the connecting screw 2 is bolted to the connecting screw hole 1111 of the anchor plate 111 in one of the connecting grooves 11, and the other end of the connecting screw 2 is bolted to the connecting screw hole 1111 of the anchor plate 111 in the other one of the connecting grooves 11.
In the embodiment of the utility model, the assembled grid is composed of a plurality of columnar grid blocks 1 and at least one connecting screw rod 2 used for connecting the grid blocks 1 in pairs. According to the length and the route of the planned bank protection structure of the river bank, a plurality of grid blocks 1 are arranged end to end along the length direction and are sequentially arranged along the extending direction of the river bank. Connecting grooves 11 on the end portions of two adjacent grid stem blocks 1 are arranged in a butt joint mode, fixedly connected anchoring plates 111 are arranged in the two connecting grooves 11, connecting screw holes 1111 in the two anchoring plates 111 in the connecting grooves 11 at the two ends of each grid stem block 1 are coaxially arranged, and connecting screw holes 1111 in the anchoring plates 111 in the two connecting grooves 11 arranged in a butt joint mode can also be coaxially arranged after correction. And finally, the two ends of the connecting screw rod 2 are respectively in bolted connection with the connecting screw holes 1111 on the anchoring plates 111 in the two connecting grooves 11 which are arranged in a butt joint manner, so that the fixed connection of the two adjacent grid stem blocks 1 is realized. Through all adopting two liang of fixed connection in proper order of this mode with a plurality of check stem blocks 1 on the extending direction of river bank, accomplish the equipment of assembled check stem and finally bury underground at the waterside edge of river bank, realize the partition to stereoplasm bank protection structure. This assembled check stalk sets up the check stalk of conventional stereoplasm shore protection structure into the type of components of a whole that can function independently equipment, can concentrate the prefabrication before burying the construction underground at the scene, need not the scene and pour, has saved the transportation and the modulation process of check stalk raw and other materials such as concrete, and the assembly is simple simultaneously, also need not the scene and sets up the formwork and carry out supplementary construction, can effectively improve the whole efficiency of construction of river course shore protection construction.
Optionally, the corrugated stem block 1 is a rectangular parallelepiped, the corrugated stem block 1 includes a first side surface 1a and a second side surface 1b located at both ends in the length direction, and a third side surface 1c, a fourth side surface 1d, a fifth side surface 1e, and a sixth side surface 1f located between the first side surface 1a and the second side surface 1b, the third side surface 1c, the fourth side surface 1d, the fifth side surface 1e, and the sixth side surface 1f are vertically connected in sequence, and the connection groove 11 is located on the first side surface 1a and the second side surface 1b, respectively. Illustratively, in the embodiment of the present invention, by providing the block blocks 1 in a rectangular parallelepiped column shape, after being transported to a construction site on a river bank, two adjacent block blocks 1 may abut against each other with the first side surface 1a and the second side surface 1b as contact surfaces, and one of the third side surface 1c, the fourth side surface 1d, the fifth side surface 1e, and the sixth side surface 1f may be a surface buried in a soil body. For example, the third side surface 1c is buried in the soil body, and the fourth side surface 1d and the sixth side surface 1f connected to the third side surface 1c can be used as a waterside surface and a waterside surface, wherein the fourth side surface 1d and the sixth side surface 1f as the waterside surface are used for connecting with and supporting and separating the hard revetment. The grid stem block 1 which is arranged in a cuboid column shape is convenient to process and manufacture, and is convenient to place and transport, so that the practicability of the assembled grid stem is improved.
Alternatively, a plurality of coupling grooves 11 may be provided on each of the first and second side surfaces 1a and 1 b. Illustratively, in the embodiment of the utility model, by providing a plurality of connecting grooves 11 on each of the first side surface 1a and the second side surface 1b, two adjacent grid block blocks 1 are connected in a multi-point manner through the plurality of connecting grooves 11 and the connecting screw rods 2 arranged in the connecting grooves 11, so that the connection between two adjacent grid block blocks 1 is prevented from being deformed or broken due to aged fracture of a single connecting screw rod 2. The assembly stability of the assembled type grid is improved.
It should be noted that, in the embodiment of the present invention, only 1 connecting groove 11 is disposed on each of the first side surface 1a and the second side surface 1b, and in other possible implementation manners, 2, 3 or even more connecting grooves 11 may be disposed on each of the first side surface 1a and the second side surface 1b, as long as the stable connection can be ensured.
Alternatively, the connecting groove 11 communicates with one of the third side surface 1c, the fourth side surface 1d, the fifth side surface 1e, and the sixth side surface 1 f. Illustratively, in the embodiment of the present invention, the connecting groove 11 on the first side surface 1a and the second side surface 1b is communicated with one of the third side surface 1c, the fourth side surface 1d, the fifth side surface 1e, and the sixth side surface 1 f. When assembling the assembled lattice, after connecting two adjacent lattice blocks 1 along the length direction in the first position, that is, attaching the first side surface 1a and the second side surface 1b, the worker can insert the connecting screw 2 into the opening where the connecting groove 11 is communicated with the third side surface 1c, the fourth side surface 1d, the fifth side surface 1e and the sixth side surface 1f and perform bolt connection with the anchoring plate 111. Avoid connecting screw 2 to take place to interfere and lead to the construction inconvenient when down, make things convenient for the staff to connect fast, further improved the whole efficiency of construction of river course shore protection construction.
Optionally, the fabricated lattice further includes a filler 3, and the filler 3 is filled in the coupling groove 11 and covers the anchoring plate 111 and the coupling screw 2. Exemplarily, in the present embodiment, after the bolt connection fixing of the connecting screw 2 and the anchor plates 111 in the two adjacent grid blocks 1 is completed. By filling the coupler groove 11 with the filler 3, the gap in the coupler groove 11 is filled with the filler 3, and the anchor plate 111 and the coupling screw 2 are covered and sealed in the coupler groove 11. The connection-completed anchor plate 111 and connecting screw 2 are prevented from contacting the external environment, such as river water or silt. The probability and the speed of corrosion damage of the anchoring plate 111 and the connecting screw rod 2 are reduced, and the service life of the assembled lattice stem is prolonged.
Optionally, the filler piece 3 is a fine-grained concrete structure. Illustratively, in the embodiments of the present invention, the fine aggregate concrete refers to concrete having a maximum particle size of coarse aggregate of not more than 15 mm. The sand is medium coarse sand with the particle size of 0.3-0.5 mm, and the mud content of coarse aggregate is not more than 1%; the mud content of the fine aggregate is not more than 2 percent; the water is tap water or drinkable natural water; the concrete strength should not be lower than C20, the consumption of concrete cement per cubic meter is not less than 330kg, and the water-cement ratio should not be greater than 0.55; the sand content is preferably 35 to 40 percent; the ratio of the ash to the sand is preferably 1: 2 to 1: 2.5. The fine aggregate concrete is adopted to fill the connecting groove 11, so that the connecting groove has good compactness, vibration is not needed, the time required by concrete pouring is greatly shortened, the labor intensity of workers is greatly reduced, and the overall construction efficiency of river bank protection construction is further improved.
Alternatively, the anchor plate 111 includes a first plate section 111a and a second plate section 111b connected to each other, the connection screw hole 1111 is located on the first plate section 111a, and the second plate section 111b is embedded in the stem block 1. Illustratively, in the embodiment of the present invention, when the stem block 1 is manufactured and cast, the second plate section 111b of the anchoring plate 111 is embedded in the stem block 1 as a connecting part, and after the stem block 1 is solidified and molded, the anchoring plate 111 can be tightly connected with the stem block 1 through the second plate section 111 b. Compare direct cell wall fixed connection with fixed knot structures such as bolt and spread groove 11 with check stem block 1, the connection fastening degree of the anchor plate 111 that adopts this mode and check stem block 1 is higher, and difficult pine takes off the deformation, has further improved the life of assembled check stem.
Alternatively, the length of the peduncle block 1 ranges from 1m to 2 m. Illustratively, in the embodiment of the utility model, the length of each grid block 1 is manufactured into a small structural member with the length ranging from 1m to 2m according to the actual design size, the overall size and weight of each grid block 1 are small, the arrangement and transportation and the carrying of workers are convenient, and the practicability of the assembled grid is further improved.
Optionally, the anchor plate 111 is a steel plate. Illustratively, in the embodiment of the utility model, the steel plate has good toughness and heat resistance, uniform material and high mechanical strength. The steel anchoring plate 111 is adopted, so that the service life of the assembled grid stem can be effectively prolonged. Meanwhile, the steel plate has good plasticity, convenient processing and short manufacturing period, and can reduce the processing cost.
The embodiment of the utility model also provides a revetment structure, which comprises at least two assembled lattice stems shown in figures 1 to 4, wherein the at least two assembled lattice stems are arranged at intervals along the slope direction of a river bank. Illustratively, in the embodiment of the utility model, the hard revetment arranged between two adjacent fabricated lattice stems can be separated and supported by arranging the fabricated lattice stems at intervals along the slope direction of the river bank.
The assembled grid stem comprises a plurality of columnar grid stem blocks 1 and at least one connecting screw rod 2 used for connecting the grid stem blocks 1 in pairs. According to the length and the route of the planned bank protection structure of the river bank, a plurality of grid blocks 1 are arranged end to end along the length direction and are sequentially arranged along the extending direction of the river bank. Connecting grooves 11 on the end portions of two adjacent grid stem blocks 1 are arranged in a butt joint mode, fixedly connected anchoring plates 111 are arranged in the two connecting grooves 11, connecting screw holes 1111 in the two anchoring plates 111 in the connecting grooves 11 at the two ends of each grid stem block 1 are coaxially arranged, and connecting screw holes 1111 in the anchoring plates 111 in the two connecting grooves 11 arranged in a butt joint mode can also be coaxially arranged after correction. And finally, the two ends of the connecting screw rod 2 are respectively in bolted connection with the connecting screw holes 1111 on the anchoring plates 111 in the two connecting grooves 11 which are arranged in a butt joint manner, so that the fixed connection of the two adjacent grid stem blocks 1 is realized. Through all adopting two liang of fixed connection in proper order of this mode with a plurality of check stem blocks 1 on the extending direction of river bank, accomplish the equipment of assembled check stem and finally bury underground at the waterside edge of river bank, realize the partition to stereoplasm bank protection structure. This assembled check stalk sets up the check stalk of conventional stereoplasm shore protection structure into the type of components of a whole that can function independently equipment, can concentrate the prefabrication before burying the construction underground at the scene, need not the scene and pour, has saved the transportation and the modulation process of check stalk raw and other materials such as concrete, and the assembly is simple simultaneously, also need not the scene and sets up the formwork and carry out supplementary construction, can effectively improve the whole efficiency of construction of river course shore protection construction.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.
The utility model is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the utility model.
Claims (10)
1. An assembled lattice stem, comprising: a plurality of grid block (1) and at least one connecting screw (2),
the grid stem blocks (1) are all columnar and are sequentially arranged along the extending direction of a river bank, the two ends of each grid stem block (1) in the length direction are respectively provided with a connecting groove (11), an anchoring plate (111) is arranged in each connecting groove (11), the anchoring plates (111) are fixedly connected with the groove walls of the connecting grooves (11), a connecting screw hole (1111) is formed in the plate surface of each anchoring plate (111), and the connecting screw holes (1111) are coaxially arranged on the two anchoring plates (111) of each grid stem block (1),
the connecting screw rods (2) are arranged in the connecting grooves (11) of two adjacent grid stem blocks (1), one end of each connecting screw rod (2) is in bolt connection with the connecting screw hole (1111) on the anchoring plate (111) in one of the connecting grooves (11), and the other end of each connecting screw rod (2) is in bolt connection with the connecting screw hole (1111) on the anchoring plate (111) in the other connecting groove (11).
2. The assembled lattice stem as claimed in claim 1, wherein the lattice stem block (1) is a rectangular parallelepiped, the lattice stem block (1) comprises a first side surface (1a) and a second side surface (1b) at both ends in a length direction, and a third side surface (1c), a fourth side surface (1d), a fifth side surface (1e) and a sixth side surface (1f) between the first side surface (1a) and the second side surface (1b), the third side surface (1c), the fourth side surface (1d), the fifth side surface (1e) and the sixth side surface (1f) are vertically connected in sequence, and the connecting grooves (11) are respectively located on the first side surface (1a) and the second side surface (1 b).
3. Assembled grid according to claim 2, characterized in that a plurality of said coupling slots (11) are provided on both said first side (1a) and said second side (1 b).
4. Assembled grid according to claim 2, characterized in that the connecting slot (11) communicates with one of the third side (1c), the fourth side (1d), the fifth side (1e) and the sixth side (1 f).
5. The fabricated panel according to claim 4, further comprising a filler (3), the filler (3) being packed in the coupling groove (11) and covering the anchoring plate (111) and the coupling screw (2).
6. Assembled lattice stem according to claim 5, characterized in that the filler piece (3) is a fine-grained concrete structure.
7. Assembled grate according to any of claims 1 to 6, characterized in that the anchorage plate (111) comprises a first plate section (111a) and a second plate section (111b) connected to each other, the connection screw hole (1111) being located on the first plate section (111a), the second plate section (111b) being embedded in the grate block (1).
8. The fabricated modular greed according to any one of claims 1 to 6 wherein the length of the greed block (1) ranges from 1m to 2 m.
9. Assembled lattice stem according to any of claims 1 to 6, characterized in that the anchoring plate (111) is a steel plate.
10. A revetment structure comprising modular grid segments according to any of claims 1 to 9, wherein said revetment structure comprises at least two of said modular grid segments, at least two of said modular grid segments being spaced apart along the slope of said river bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477756.7U CN215801390U (en) | 2021-06-30 | 2021-06-30 | Assembled check stem and revetment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477756.7U CN215801390U (en) | 2021-06-30 | 2021-06-30 | Assembled check stem and revetment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215801390U true CN215801390U (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121477756.7U Active CN215801390U (en) | 2021-06-30 | 2021-06-30 | Assembled check stem and revetment structure |
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| Country | Link |
|---|---|
| CN (1) | CN215801390U (en) |
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2021
- 2021-06-30 CN CN202121477756.7U patent/CN215801390U/en active Active
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