CN114808867B - Construction method of gate fixed effusion device - Google Patents
Construction method of gate fixed effusion device Download PDFInfo
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- CN114808867B CN114808867B CN202210537371.8A CN202210537371A CN114808867B CN 114808867 B CN114808867 B CN 114808867B CN 202210537371 A CN202210537371 A CN 202210537371A CN 114808867 B CN114808867 B CN 114808867B
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- gate
- fixed
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- fixing
- fixing device
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- 238000010276 construction Methods 0.000 title description 3
- 230000000712 assembly Effects 0.000 claims abstract description 18
- 238000000429 assembly Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 12
- 239000004567 concrete Substances 0.000 claims description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 6
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000009415 formwork Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/52—Equipment preventing vibration of gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
According to the method for constructing the gate fixed effusion device, provided by the invention, the anchor rods and the fixed reinforcing steel bars are respectively arranged on the foundation and the gate pier, so that the integral connection of the reinforcement cage of the fixed device is realized, the integral performance is improved, the spring assemblies with different rigidities are arranged on the fixed device, and the elastic contact is realized by matching with the convex structures on the upper surface of the fixed device, so that the local damage is avoided, the integral strength of the structure is improved, and the fixed opening effusion of the gate is ensured.
Description
Technical Field
The invention relates to the field of hydraulic engineering, in particular to a method for constructing a gate fixed effusion device.
Background
The gate is a common hydraulic engineering structure, and the opening of the gate is adjusted and opened and closed by arranging an opening and closing device, so that effusion control is realized. For a gate device built in a river or a channel, once the gate is completely closed, the corresponding ecological flow is lacked in the channel or the river channel, the river or the channel is cut off, and for the river or the channel which is not allowed to cut off, the local ecology is influenced.
For the overall ecological protection of rivers or channels, the minimum ecological requirements of the rivers or channels in the whole year are often required to be ensured, and for the gate, effusion is generally required to be carried out according to a certain effusion mode. For most gates, it is generally required to ensure the minimum effusion requirement of the gate, that is, the gate opening cannot be set to 0, the gate needs to be ensured to be in a normally open state, once the opening needs to be increased, the gate opening needs to be lifted, and when the gate is closed, the gate needs to be closed to the set minimum opening requirement. In order to ensure the fixed effusion requirement of the gate, trimming or reconstruction is needed at the gate to meet the functional requirement of the fixed effusion of the gate.
Disclosure of Invention
The invention provides a method for constructing a gate fixed effusion device, which aims at the problems of the prior art.
The invention provides a method for constructing a gate fixed effusion device, wherein the gate device comprises a gate pier and a gate slot positioned in the gate pier, in order to realize fixed effusion, a fixing device is built at the lower part of the gate slot, a blocking device is arranged on the fixing device, when the gate falls to the blocking device in the gate slot, the gate cannot continuously descend due to the blocking of the blocking device, so that a fixed gate opening is formed, and the fixed effusion is realized, and the gate pier is of a reinforced concrete structure, and the method for constructing the gate fixed effusion device comprises the following steps:
s1: treating the foundation at the gate slot position, and setting an anchor rod, wherein the bottom of the anchor rod penetrates into the foundation, and the top of the anchor rod extends out of the foundation;
s2: a fixed steel bar is implanted in the gate pier, one end of the fixed steel bar penetrates into the gate pier, one end of the fixed steel bar extends out of the gate pier, the fixed steel bar is horizontally arranged, and the fixed steel bar is fixedly connected with the anchor rod;
s3: binding the reinforcing steel bars of the fixing device, binding the horizontal reinforcing steel bars on the anchor rods, and binding the vertical reinforcing steel bars on the fixing reinforcing steel bars to form a reinforcing steel bar cage of the fixing device;
s4: setting up a template of the fixing device and pouring concrete, wherein when the fixing device is formed by setting up the template, the upper surface of the fixing device is provided with a first bulge and a second bulge, the first bulge is positioned at the outer side of the second bulge, namely, the distance between the first bulge and a gate slot is larger than the distance between the second bulge and the gate slot, the height of the first bulge is higher than that of the second bulge, and the shape of the template is matched with that of the first bulge and the second bulge on the upper surface;
s5: after the concrete is cured to the designed strength, the template is removed, an upper limit rod and a lower limit rod are arranged on the gate pier, the upper limit rod is positioned at the upstream of the gate slot, the lower limit rod is positioned at the downstream of the gate slot, the height of the upper limit rod is higher than that of the lower limit rod, an upper elastic cushion block is arranged between the upper limit rod and the fixing device, and a lower elastic cushion block is arranged between the lower limit rod and the fixing device;
s6: processing a spring assembly, wherein the spring assembly comprises an upper fixing plate, a lower fixing plate and a spring positioned between the upper fixing plate and the lower fixing plate, and the spring is fixedly connected with the upper fixing plate and the lower fixing plate;
s7: the spring assemblies are fixed, the lower fixing plates are sequentially fixed on the upper surface of the fixing device, the lower fixing plates are respectively fixed on the first bulge and the second bulge, the lengths of springs in the spring assemblies fixed by the first bulge and the second bulge are smaller than those of springs of the spring assemblies fixed in the rest areas of the upper surface, and the upper fixing plates of the fixed spring assemblies are ensured to be at the same height through the fixed spring assemblies;
s8: and the upper fixing plate is fixedly provided with a rubber plate, and the rubber plate is fixedly connected with the upper fixing plate of the spring assembly.
Preferably, the rubber plate is provided with a wear-resistant layer in a connecting manner.
Preferably, the number of the fixing devices is 2, the fixing devices are respectively positioned at the gate grooves at two ends of the gate, and the bottom of each fixing device is provided with a connecting beam so as to improve the overall performance of the two fixing devices.
Preferably, the fixing bars may be arranged in a plurality of groups along the direction of the gate slot.
Preferably, the length of the spring assembly on the first protrusion is greater than the length of the spring assembly on the second protrusion, and the spring of the spring assembly on the first protrusion has a smaller stiffness than the spring of the spring assembly on the second protrusion.
Preferably, the fixing device is matched with the shape of the gate slot, and the fixing device has a certain clearance with the gate slot and the gate pier.
The working principle of the invention is as follows:
after the device is built, when the gate descends, the device can only descend to a set opening degree, and a fully closed state cannot occur, so that when ecological requirements exist at the gate, the ecological effusion requirements of the gate can be met;
the anchor rod is arranged at the gate and matched with the gate pier, so that the reinforcement of the fixing device is fixed, the overall performance of the fixing device, the foundation and the gate pier can be ensured, and the overall safety performance of the structure is ensured;
an upper limit rod and a lower limit rod are arranged on the gate pier to limit the fixing device, and an elastic cushion block is arranged between the upper limit rod and the lower limit rod and between the fixing device, so that the elastic fixing of the upper limit rod and the lower limit rod is ensured, and the rigid use of the structure is not influenced; the upper limit rod and the lower limit rod are different in height, so that reinforcement with different heights is formed, and a certain moment can be formed by using the different heights, so that the limit effect is improved; the device for improving the anti-overturning capability and the bottom anchoring device can ensure enough stress stability of the fixing device, and are one of important invention points of the invention;
a first bulge and a second bulge are built on the upper surface of the fixing device, spring assemblies are respectively arranged on the upper surface of the fixing device, the first bulge and the second bulge, and the lengths of springs at different positions are different, so that a spring stress system with different elastic rigidities is formed, the rigidity changing performance of the springs is conveniently and fully exerted, and the elastic deformation capacity is improved;
the fixing device is connected with the rubber plate through the spring assembly, the gate is connected with the rubber plate, so that the rigidity of the structure is avoided, the gate transmits acting force to the rubber plate, the rubber plate transmits acting force to the spring, and then the acting force is transmitted to the fixing device, so that the rigidity of the structure is effectively avoided from being damaged, the fixing device is connected with the foundation and the gate pier into a whole, the normal safety performance of the structure can be ensured, and local damage is avoided.
The fixing device adopts a reinforced concrete structure, has larger stress, adopts springs and the like for protection, can improve the stress performance, and has higher practical effect once the stress damage occurs, the springs and the upper and lower fixing plates can be directly replaced; the fixing device adopts a convex structure to protect the convex part by a spring, so that the stress performance of the fixing device and the gate slot is ensured, the structural working effect is improved, and the fixing device has better energy consumption and vibration reduction effects on dynamic load when the gate is lowered or frequently opened and closed.
The invention has the advantages that:
according to the method for constructing the gate fixed effusion device, provided by the invention, the anchor rods and the fixed reinforcing steel bars are respectively arranged on the foundation and the gate pier, so that the integral connection of the reinforcement cage of the fixed device is realized, the integral performance is improved, the spring assemblies with different rigidities are arranged on the fixed device, and the elastic contact is realized by matching with the convex structures on the upper surface of the fixed device, so that the local damage is avoided, the integral strength of the structure is improved, and the fixed opening effusion of the gate is ensured.
Description of the drawings:
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is an elevational schematic of the present invention;
FIG. 3 is a schematic view of a spring assembly arrangement;
fig. 4 is a schematic view of a rubber dam arrangement.
The specific embodiment is as follows:
the following is a specific explanation of the structure defined by the present invention with reference to the drawings.
The invention provides a method for constructing a gate fixed effusion device, wherein the gate device comprises a gate pier 1 and a gate slot positioned in the gate pier 1, in order to realize fixed effusion, a fixing device 2 is built at the lower part of the gate slot, a blocking device is arranged on the fixing device 2, when the gate falls to the blocking device in the gate slot, the gate cannot continuously descend due to the blocking of the blocking device, so that a fixed gate opening is formed, and the fixed effusion is realized, and the gate pier 1 is of a reinforced concrete structure, and the method for constructing the gate fixed effusion device comprises the following steps:
s1: the foundation at the gate slot position is treated, an anchor rod 3 is arranged, the bottom of the anchor rod 3 penetrates into the foundation, and the top of the anchor rod 3 extends out of the foundation;
s2: a fixed steel bar 4 is implanted in the gate pier 1, one end of the fixed steel bar 4 penetrates into the gate pier 1, one end of the fixed steel bar 4 extends out of the gate pier 1, the fixed steel bar 4 is horizontally arranged, and the fixed steel bar 4 is fixedly connected with the anchor rod 3;
s3: binding the steel bars of the fixing device 2, binding horizontal steel bars on the anchor rods 3, binding vertical steel bars on the fixing steel bars 4 to form a steel bar cage of the fixing device 2;
s4: setting up a formwork of the fixing device 2, pouring concrete, and forming the fixing device 2 by setting up the formwork, wherein a first bulge 21 and a second bulge 22 are arranged on the upper surface of the fixing device 2, the first bulge 21 is positioned on the outer side of the second bulge 22, namely, the distance from the first bulge 21 to a gate slot is larger than the distance from the second bulge 22 to the gate slot, the height of the first bulge 21 is higher than the height of the second bulge 22, and the formwork is matched with the shapes of the first bulge 21 and the second bulge 22 on the upper surface;
s5: after the concrete is cured to the designed strength, the template is removed, an upper limit rod 5 and a lower limit rod 6 are arranged on the gate pier 1, the upper limit rod 5 is positioned at the upstream of the gate slot, the lower limit rod 6 is positioned at the downstream of the gate slot, the height of the upper limit rod 5 is higher than that of the lower limit rod 6, an upper elastic cushion block 51 is arranged between the upper limit rod 5 and the fixing device 2, and a lower elastic cushion block 61 is arranged between the lower limit rod 6 and the fixing device 2;
s6: machining a spring assembly, wherein the spring assembly comprises an upper fixing plate 71, a lower fixing plate 72 and a spring 73 positioned between the upper fixing plate 71 and the lower fixing plate 72, and the spring 73 is fixedly connected with the upper fixing plate 71 and the lower fixing plate 72;
s7: fixing spring assemblies, namely sequentially fixing the lower fixing plates 72 on the upper surface of the fixing device 2, and respectively fixing the lower fixing plates 72 on the first bulges 21 and the second bulges 22, wherein the lengths of springs 73 in the spring assemblies fixed by the first bulges 21 and the second bulges 22 are smaller than those of springs 73 of the spring assemblies fixed in the rest areas of the upper surface, and the upper fixing plates 71 of the fixed spring assemblies are ensured to be at the same height through fixing the spring assemblies;
s8: a rubber plate 8 is fixed on the upper fixing plate 71, and the rubber plate 8 is fixedly connected with the upper fixing plate 71 of the spring assembly.
Preferably, the rubber plate 8 is provided with a wear-resistant layer in a connecting way; the rubber plate 8 is connected with the upper fixing plate 71 by adhesion, and the upper fixing plate 71 can be made of flexible materials such as rubber, so as to improve the adhesion and connection effects; the surface of the wear-resistant layer forms a rough surface;
preferably, the number of the fixing devices 2 is 2, and the fixing devices 2 are respectively positioned at gate grooves at two ends of a gate, and the bottom of each fixing device 2 is provided with a connecting beam so as to improve the overall performance of the two fixing devices 2; the connecting beams are of reinforced concrete structures, two connecting beams are arranged, and the connecting beams are arranged up and down; the steel bar structure in the connecting beam goes deep into the fixing device 2, so that the connecting effect is improved;
preferably, the fixed steel bars 4 can be arranged into a plurality of groups along the direction of the gate slot;
preferably, the upper limit rod 5 and the lower limit rod 6 are rectangular, and have a width of not less than 5cm and a length of not less than 10cm, so as to ensure that the upper limit rod and the lower limit rod have enough strength; during construction, the gate pier 1 is drilled, the drilled holes are cleaned, steel bars are implanted, templates of the upper limiting rod 5 and the lower limiting rod 6 are arranged after the steel bars are fixed, concrete is poured into the drilled holes and the templates, and the upper limiting rod 5 and the lower limiting rod 6 of the reinforced concrete structure are formed after curing to the design strength; the upper limit rod 5 and the lower limit rod 6 are staggered in the upper and lower positions, so that the anti-overturning capability of the fixing device 2 can be improved;
preferably, the length of the spring 73 of the spring assembly on the first protrusion 21 is greater than the length of the spring 73 of the spring assembly on the second protrusion 22, and the spring stiffness of the spring assembly on the first protrusion 21 is less than the spring stiffness of the spring assembly on the second protrusion 22; the energy dissipation effect of the gate can be effectively improved by utilizing the cooperation of springs with different rigidities and lengths, and the damage to the fixing device in the descending process of the gate is prevented;
preferably, the fixing device 2 is matched with the shape of the gate slot, and the fixing device 2 has a certain clearance with the gate slot and the gate pier 1; the gap formed by the fixing device 2 and the gate slot can be filled with flexible materials, such as rubber pads and the like, so that the stress and water stop of the gap are ensured, the filled flexible materials are required to ensure the necessary water stop requirement, and sundries are prevented from falling into the gap, so that unnecessary manual cleaning is caused.
The shape of fixing device 2 is protruding structure, the bellying of fixing device 2 stretches into in the gate groove, as preferred embodiment, the upper surface of the bellying of fixing device 2 also is fixed with lower fixed plate 72, spring 73 and last fixed plate 71, and this kind of setting up mode can avoid the destruction to fixing device when the gate falls, especially in the bellying of fixing device 2 goes deep into the gate groove, can effectively realize the protection to the structure near the gate groove, and spring 73 has elastic deformation ability, can effectively promote its protective effect, guarantees the structural strength of fixing device and gate groove department.
The above-described embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be construed as being limited to the specific forms set forth by the examples, but also includes equivalent technical means as will occur to those skilled in the art based on the inventive concept.
Claims (6)
1. A method of constructing a gate fixed effusion device including a gate pier and a gate slot located in the gate pier, the gate fixed effusion device including a fixing device constructed at a lower portion of the gate slot and a blocking device provided on the fixing device, the gate being unable to continue to descend due to the blocking of the blocking device when it falls to the blocking device in the gate slot, thereby forming a fixed gate opening degree to achieve a fixed effusion, the gate pier being of a reinforced concrete structure, the method comprising the steps of:
s1: treating the foundation at the gate slot position, and setting an anchor rod, wherein the bottom of the anchor rod penetrates into the foundation, and the top of the anchor rod extends out of the foundation;
s2: a fixed steel bar is implanted in the gate pier, one end of the fixed steel bar penetrates into the gate pier, one end of the fixed steel bar extends out of the gate pier, the fixed steel bar is horizontally arranged, and the fixed steel bar is fixedly connected with the anchor rod;
s3: binding the reinforcing steel bars of the fixing device, binding the horizontal reinforcing steel bars on the anchor rods, and binding the vertical reinforcing steel bars on the fixing reinforcing steel bars to form a reinforcing steel bar cage of the fixing device;
s4: setting up a template of the fixing device and pouring concrete, wherein when the fixing device is formed by setting up the template, the upper surface of the fixing device is provided with a first bulge and a second bulge, the first bulge is positioned at the outer side of the second bulge, namely, the distance between the first bulge and a gate slot is larger than the distance between the second bulge and the gate slot, the height of the first bulge is higher than that of the second bulge, and the shape of the template is matched with that of the first bulge and the second bulge on the upper surface;
s5: after the concrete is cured to the designed strength, the template is removed, an upper limit rod and a lower limit rod are arranged on the gate pier, the upper limit rod is positioned at the upstream of the gate slot, the lower limit rod is positioned at the downstream of the gate slot, the height of the upper limit rod is higher than that of the lower limit rod, an upper elastic cushion block is arranged between the upper limit rod and the fixing device, and a lower elastic cushion block is arranged between the lower limit rod and the fixing device;
s6: processing a spring assembly, wherein the spring assembly comprises an upper fixing plate, a lower fixing plate and a spring positioned between the upper fixing plate and the lower fixing plate, and the spring is fixedly connected with the upper fixing plate and the lower fixing plate;
s7: the spring assemblies are fixed, the lower fixing plates are sequentially fixed on the upper surface of the fixing device, the lower fixing plates are respectively fixed on the first bulge and the second bulge, the lengths of springs in the spring assemblies fixed by the first bulge and the second bulge are smaller than those of springs of the spring assemblies fixed in the rest areas of the upper surface, and the upper fixing plates of the fixed spring assemblies are ensured to be at the same height through the fixed spring assemblies;
s8: and the upper fixing plate is fixedly provided with a rubber plate, and the rubber plate is fixedly connected with the upper fixing plate of the spring assembly.
2. The method of constructing a gate fixed effusion device as claimed in claim 1, wherein: and the rubber plate is connected with a wear-resistant layer.
3. The method of constructing a gate fixed effusion device as claimed in claim 1, wherein: the number of the fixing devices is 2, the fixing devices are respectively positioned at the gate grooves at the two ends of the gate, and the bottom of each fixing device is provided with a connecting beam so as to improve the overall performance of the two fixing devices.
4. The method of constructing a gate fixed effusion device as claimed in claim 1, wherein: the fixed steel bars are arranged into a plurality of groups along the direction of the gate slot.
5. The method of constructing a gate fixed effusion device as claimed in claim 1, wherein: the length of the spring assembly on the first bulge is larger than that of the spring assembly on the second bulge, and the rigidity of the spring assembly on the first bulge is smaller than that of the spring assembly on the second bulge.
6. The method of constructing a gate fixed effusion device as claimed in claim 1, wherein: the fixing device is matched with the shape of the gate slot, and a certain gap is reserved between the fixing device and the gate slot and between the fixing device and the gate pier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210537371.8A CN114808867B (en) | 2022-05-18 | 2022-05-18 | Construction method of gate fixed effusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210537371.8A CN114808867B (en) | 2022-05-18 | 2022-05-18 | Construction method of gate fixed effusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114808867A CN114808867A (en) | 2022-07-29 |
| CN114808867B true CN114808867B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210537371.8A Active CN114808867B (en) | 2022-05-18 | 2022-05-18 | Construction method of gate fixed effusion device |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100929613B1 (en) * | 2009-08-17 | 2009-12-03 | 장찬철 | Compound gate floodgate |
| CN213508341U (en) * | 2020-09-27 | 2021-06-22 | 广东粤源工程咨询有限公司 | Reservoir is let out in advance and ecological flow structure of letting out down concurrently |
| CN113463579A (en) * | 2021-06-26 | 2021-10-01 | 王耀川 | High-order flood discharge sluice in summer flood |
| CN215367130U (en) * | 2021-08-09 | 2021-12-31 | 沈琪翔 | Novel water conservancy water and electricity flood discharge gate |
| CN215715090U (en) * | 2021-09-12 | 2022-02-01 | 齐士国 | Anti-overwinding drainage gate for small reservoir |
-
2022
- 2022-05-18 CN CN202210537371.8A patent/CN114808867B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100929613B1 (en) * | 2009-08-17 | 2009-12-03 | 장찬철 | Compound gate floodgate |
| CN213508341U (en) * | 2020-09-27 | 2021-06-22 | 广东粤源工程咨询有限公司 | Reservoir is let out in advance and ecological flow structure of letting out down concurrently |
| CN113463579A (en) * | 2021-06-26 | 2021-10-01 | 王耀川 | High-order flood discharge sluice in summer flood |
| CN215367130U (en) * | 2021-08-09 | 2021-12-31 | 沈琪翔 | Novel water conservancy water and electricity flood discharge gate |
| CN215715090U (en) * | 2021-09-12 | 2022-02-01 | 齐士国 | Anti-overwinding drainage gate for small reservoir |
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| Publication number | Publication date |
|---|---|
| CN114808867A (en) | 2022-07-29 |
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