CN204753517U - Be provided with floodgate body and dam of drainage tube - Google Patents
Be provided with floodgate body and dam of drainage tube Download PDFInfo
- Publication number
- CN204753517U CN204753517U CN201520355626.4U CN201520355626U CN204753517U CN 204753517 U CN204753517 U CN 204753517U CN 201520355626 U CN201520355626 U CN 201520355626U CN 204753517 U CN204753517 U CN 204753517U
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- Prior art keywords
- lock body
- drainage tube
- water
- dam
- described lock
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 162
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 abstract description 16
- 239000001301 oxygen Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 13
- 238000000465 moulding Methods 0.000 abstract description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 241000195493 Cryptophyta Species 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Barrages (AREA)
Abstract
The utility model provides a be provided with floodgate body and dam of drainage tube. Be provided with the drainage tube on this floodgate body, the water inlet setting of drainage tube is in the floodgate body meet the water side region below 12 height of the floodgate body, the delivery port setting of drainage tube is in the land side of the floodgate body just be in on the height of the water inlet of drainage tube region under the design manger plate position of the floodgate body. Adopt the utility model discloses a drainage tube and the floodgate body, the upper lower floor that flows in can be followed to the water that drives before the floodgate body to increase the dissolved oxygen content of lower floor's water, improve the quality of water before the floodgate effectively, its simple structure, the cost is low, and the letter of also being convenient for is very much repaiied, that can also richen simultaneously the floodgate body overflows form and molding, has very good view effect.
Description
Technical field
The utility model relates to hydraulic engineering technical field, particularly relates to a kind of the lock body and the dam that are provided with drainage tube.
Background technology
Under normal circumstances, the seasonal variation in river is comparatively obvious, and non-flood period river course inflow-rate of water turbine is general less, even there will be cutout situation.And the construction in river course, modern city, often need auxiliary construction lock body, certain water surface view could be formed.
But, after lock body builds up, when river, to carry out the water yield less even without when carrying out the water yield, before water body before lock body, especially lock body, bottom water body is close to static water body, the poor fluidity of levels current, dissolved oxygen exchange capacity between levels is low, particularly bottom water body can only rely on diffusion to obtain dissolved oxygen substantially, cause dissolved oxygen content low, thus before causing lock, water quality is generally poor.
Utility model content
The utility model provides a kind of the lock body and the dam that are provided with drainage tube, poor to solve in prior art water body flow before lock, levels water body communication difficult, the defect that before lock, water quality is generally poor, to improve the water quality of water body before lock body.
The utility model provides a kind of lock body being provided with drainage tube, and described lock body is provided with drainage tube; The water inlet of described drainage tube is arranged on the region of below 1/2 height of the side that meets water of described lock body, described lock body; Region on the height that the delivery port of described drainage tube is arranged on the land side of described lock body, the water inlet of described drainage tube and under the design dash position of described lock body.
Further, be provided with in the lock body of drainage tube as above, the region on the maximum sediment deposit that the water inlet of described drainage tube is arranged on applied river course upwards 10 centimetres.
Further, in lock body described above, the delivery port of described drainage tube comprises circular pipe type delivery port.
Further, in lock body as above, the water outlet of described drainage tube is provided with plug, and described plug is used for when not needing draining, the delivery port of drainage tube described in shutoff.
Further, in lock body as above, described lock body can arrange multiple described drainage tube.
Further, in lock body as above, described lock body is the integrated weir body structure adopting reinforced concrete to cast.
Further, in lock body as above, described lock body adopts Vertical Lift sluice structure.
The utility model also provides a kind of dam, and described dam comprises lock body as above and driver element, and described driver element is connected with described lock body, is elevated for driving described lock body.
Further, dam as above is hinge movable dam, hydraulic lifting dam or steel dam.
Lock body and the dam being provided with drainage tube of the present utility model, by being provided with drainage tube on lock body; The water inlet of drainage tube is arranged on the region of below 1/2 height of the side that meets water of lock body, lock body; Region on the height that the delivery port of drainage tube is arranged on the land side of lock body, the water inlet of drainage tube and under the design dash position of lock body.Adopt the technical solution of the utility model, because drainage tube delivery port and design dash position have certain water level discrepancy in elevation, guarantee that drainage tube can normally work under the effect of this head difference, like this, water body before lock body can enter drainage tube through the water inlet of drainage tube, and under the effect of drainage tube delivery port with the head difference of design dash position, discharge from the delivery port of drainage tube.Because the water body before lock body constantly enters the water inlet of drainage tube, thus drive the water body before lock body can flow into lower floor from upper strata, before lock, the fluidised form of water body becomes turbulent flow from approximate laminar flow, thus increases the dissolved oxygen content of lower floor's water quality, effectively improves the water quality before lock body.And when carrying out the water yield and being little, before lock body, bottom water body flows out through drainage tube, in the water air flowed out, jet flow drops to downstream water, and in this process, the disturbance of water body is mixed with a large amount of oxygen, while improving the water quality of water body in pipe, also can improve the water quality of downstream water.When carrying out the water yield and being larger, the water body spraying water body and lock body top from drainage tube carries out mutual impact, not only increases the oxygen-doped amount of water body, improves water quality, can also form the water landscape of different levels, enriches overcurrent form and the moulding of gate.Of the present utility model by arranging drainage tube on lock body, its structure is simple, and cost is low, is also convenient to very much letter and repaiies; Overcurrent form and the moulding of lock body can also be enriched simultaneously, there is extraordinary landscape effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the cross-sectional view being provided with an embodiment of the lock body of drainage tube of the present utility model.
Fig. 2 is the cross-sectional view being provided with another embodiment of the lock body of drainage tube of the present utility model.
Fig. 3 is the structural representation of an embodiment of drainage tube of the present utility model.
Fig. 4 is the structural representation of another embodiment of drainage tube of the present utility model.
Fig. 5 is the structural representation of an embodiment again of drainage tube of the present utility model.
Fig. 6 is the structural representation being provided with an embodiment again of the lock body of drainage tube of the present utility model.
Fig. 7 is the cross-sectional view of an embodiment of dam of the present utility model.
Fig. 8 is the cross-sectional view of another embodiment of dam of the present utility model.
Fig. 9 is the cross-sectional view of an embodiment again of dam of the present utility model.
Figure 10 is the structural representation of the another embodiment of dam of the present utility model.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the cross-sectional view being provided with an embodiment of the lock body of drainage tube of the present utility model.As shown in Figure 1, the lock body 1 of the present embodiment, during use, this lock body 1 bottom is connected on base plate.Lock body 1 is provided with drainage tube 2; The water inlet 3 of drainage tube 2 is arranged on the region of below 1/2 height of the side that meets water of lock body 1, lock body 1; Region on the height that the delivery port 4 of drainage tube 2 is arranged on the land side of lock body 1, the water inlet 3 of drainage tube 2 and under the design dash position of lock body 1.This design dash position can be the maximum water retaining height of this lock body 1.Wherein design is when water level is in the side that meets water of lock body 1, and the water level that the land side of lock body 1 is corresponding is the level of tail water.As shown in Figure 1, the inside that the drainage tube 2 in the present embodiment can be arranged on lock body 1 is that example is to describe the technical solution of the utility model.In practical application, according to demand, drainage tube 2 also can be arranged on the land side of lock body 1 or the side surface that meets water.
The water inlet 3 of the drainage tube 2 in the present embodiment is arranged on the region of below 1/2 height of the side that meets water of lock body 1, lock body 1; Like this, farthest can ensure that this water inlet 3 is in the water before being immersed in lock body 1.Can also according to the streamflow regime in the river course of this lock body 1 embody rule in practical application, such as this streamflow is less even without height of water level when carrying out the water yield, arranges the position of suitable water inlet 3.In like manner, the region on the height that the delivery port 4 of the drainage tube 2 in the present embodiment is arranged on the land side of lock body 1, the water inlet 3 of drainage tube 2 and under the design dash position of lock body 1.And the mouth of pipe place of water inlet 3 should keep level, or can slightly be inclined upwardly, the angle of adjustment water inlet 3, silting in the drainage tube 2 caused to prevent water inlet 3.Fig. 2 is the cross-sectional view being provided with another embodiment of the lock body of drainage tube of the present utility model.The difference being provided with the lock body of drainage tube shown in the lock body being provided with drainage tube shown in Fig. 2 and Fig. 1 is only: the lock body 1 in Fig. 1 is perpendicular to base plate straight up, and the lock body 1 in Fig. 2 is tilted-putted relative to base plate.As depicted in figs. 1 and 2, regardless of the direction of lock body 1, all to ensure the mouth of pipe place maintenance level of water inlet 3, or can slightly be inclined upwardly; Like this, it is level and smooth for can ensureing that the mouth of pipe at water inlet 3 place is connected with the pipeline of the mid portion of drainage tube 2, silting in the drainage tube 2 caused to prevent the mouth of pipe of water inlet 3.
During use, when the water yield before lock body is less or without when carrying out the water yield, the water body before lock body 1 enters drainage tube 2 from water inlet 3, because the delivery port 4 of drainage tube 2 has certain height difference value with design dash position, the water can oppressed in drainage tube 2 flows out from delivery port 4.Because before lock body 1, the water body of bottom constantly enters the water inlet 3 of drainage tube 2, thus drive the water body before lock body 1 can flow into lower floor from upper strata, thus increase the dissolved oxygen content of lower floor's water quality, effectively improve the water quality before lock body.Simultaneously, before lock body 1, bottom water body flows out through the delivery port 4 of drainage tube 2, the water flowed out in atmosphere jet flow drops to downstream water, in this process, the disturbance of water body is mixed with a large amount of oxygen, add the dissolved oxygen content of water body, while improving the water quality of the water body that drainage tube 2 jet flow goes out, also can improve the water quality of downstream water.Meanwhile, when lock body top is without overcurrent, in conjunction with the different designs form of delivery port, the different jet flow views such as unique dragon plays with water, spring also can be formed.
When carrying out the water yield and being larger, the top of lock body 1 also has flowing water, the water body now spraying water body and lock body top in drainage tube carries out mutual impact, not only increase the oxygen-doped amount of water body, improve water quality, the water landscape of different levels can also be formed, enrich overcurrent form and the moulding of gate, there is extraordinary landscape effect.
And the present embodiment by arranging drainage tube on lock body, its structure is simple, and cost is low, is also convenient to very much letter and repaiies.
And, when carrying out the water yield and being little, before lock body, bottom water body flows out through drainage tube, the water body flowed out in atmosphere jet flow drops to downstream water, improve the fluidised form of water body, improve the dissolved oxygen content of water body, destroy the living environment of algae, suppress the breeding of algae, activate the self-purification function of water body, even if make whole water bottom also can be in good good oxygen condition in summer, be beneficial to the decomposition of aerobic microbiological to water bottom organic pollution, effectively reduce the biochemical oxygen demand (BOD) of water body, water quality is improved in a short time.When carrying out the water yield and being larger, the water body let out spray water body and lock body top from drainage tube under carries out mutual impact, not only increases the dissolved oxygen content of water body, improves water quality, can also form the water landscape of different levels, enriches overcurrent form and the moulding of gate.
And the present embodiment by arranging drainage tube on lock body, its structure is simple, and cost is low, is also convenient to very much letter and repaiies; Overcurrent form and the moulding of lock body can also be enriched simultaneously, there is extraordinary landscape effect.
Further alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 1, region on the maximum sediment deposit that the water inlet 3 of drainage tube 2 is arranged on applied river course upwards 10 centimetres, and water inlet is under normal water storage condition, should in level to or upwards become certain acute angle with flowing to downstream, prevent water inlet from resulting in blockage because of problems such as alluvials.Because there is certain thickness sedimentation river bed, in order to the water inlet 3 preventing sedimentation silting from living mozzle 2, the region on the maximum sediment deposit that water inlet 3 can be arranged on applied river course upwards 10 centimetres.Water inlet 3 under normal water storage condition, should in level to or upwards become certain acute angle with flowing to downstream, prevent water inlet from resulting in blockage because of problems such as alluvials.
Further alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 1, the delivery port 4 of drainage tube 2 can comprise duck-beak type, circular pipe type or bamboo tube type; Or can also according to the profile of actual lock body 1, the scene that lock body uses sets out the shape at the mouth of a river 4, limits no longer one by one at this.The hinge movable dam of the present embodiment, by arranging difformity on lock body 1, the delivery port of different-style, can enrich the moulding of lock body, has extraordinary landscape effect.
Fig. 3 is the structural representation of an embodiment of drainage tube of the present utility model.Fig. 4 is the structural representation of another embodiment of drainage tube of the present utility model.Fig. 5 is the structural representation of an embodiment again of drainage tube of the present utility model.Wherein, the delivery port 4 being illustrated in figure 3 drainage tube 2 adopts duck-beak type.The delivery port 4 of drainage tube 2 as shown in Figure 3 adopts bamboo tube type.The delivery port 4 of drainage tube 2 as shown in Figure 3 adopts drum type brake.Adopt the delivery port 4 of the drainage tube 2 shown in Fig. 3-Fig. 5 respectively, different flow shapes can be moulded on delivery port 4, there is extraordinary landscape effect.
Further alternatively, on the basis of above-mentioned technical scheme embodiment illustrated in fig. 1, delivery port 4 place of drainage tube 2 can also be provided with plug, and this plug is used for when not needing draining, the delivery port 4 of shutoff drainage tube.Such as in needs cutout maintenance or when not needing draining, delivery port 4 can be sealed, do not affect the effect of original lock body 1.
It should be noted that further, the lock body 1 in the utility model can arrange multiple drainage tube 2.The quantity of drainage tube 2 and bore thereof, can according to non-flood period minimum come the water yield design, and should meet sand discharge row become silted up requirement.Such as Fig. 6 is the structural representation being provided with an embodiment again of the lock body of drainage tube of the present utility model.To be provided with three drainage tubes 2 to describe technical scheme of the present invention on lock body 1 in Fig. 6.In practical application, according to the width of lock body 1, the drainage tube 2 of any amount can be set according to demand.As shown in Figure 6, three drainage tubes 2 on lock body 1, from left to right adopt the delivery port 4 of the delivery port 4 of duck-beak type, the delivery port 4 of bamboo tube type and drum type brake successively, can enrich overcurrent form and the moulding of lock body, have extraordinary landscape effect.
It should be noted that, the lock body 1 being provided with drainage tube 2 of above-described embodiment is specifically as follows fixed gate or weir body; Or also may be used for movable gate.Such as this lock body is the integrated weir body structure that reinforced concrete can be adopted to cast, or gate also can be Vertical Lift sluice structure.
Further, the structure of the drainage tube 2 of the present embodiment can also be used on the movable dams such as hinge movable dam, hydraulic lifting dam, steel dam valve.Now, drainage tube 2 is arranged on lock body 1, and dam, except lock body 1, is also provided with driver element.Specific as followsly to state described in embodiment.
Fig. 7 is the cross-sectional view of an embodiment of dam of the present utility model.As shown in Figure 7, the dam of the present embodiment adopts the lock body 1 as above shown in Fig. 2; And this lock body 1 bottom is connected on base plate.Drainage tube 2 should be provided with on lock body 1; The water inlet 3 of drainage tube 2 is arranged on the region of below 1/2 height of the side that meets water of lock body 1, lock body 1; Region on the height that the delivery port 4 of drainage tube 2 is arranged on the land side of lock body 1, the water inlet 3 of drainage tube 2 and under the design dash position of lock body 1.The dam of the present embodiment also comprises driver element 5, and this driver element 5 is connected with lock body 1, is elevated for driving lock body 1.
The dam of the present embodiment is movable gate, such as, be specifically as follows the movable dams such as hinge movable dam, hydraulic lifting dam, steel dam valve.
Fig. 8 is the cross-sectional view of another embodiment of dam of the present utility model.In the dam shown in this Fig. 8, drainage tube 2 have employed the delivery port 4 of the duck-beak type shown in Fig. 2.Fig. 9 is the cross-sectional view of an embodiment again of dam of the present utility model.In the dam shown in this Fig. 9, drainage tube 2 have employed the delivery port 4 of the bamboo tube type shown in Fig. 4.Figure 10 is the structural representation of the another embodiment of dam of the present utility model.As shown in Figure 10, the dam of the present embodiment, on above-mentioned basis embodiment illustrated in fig. 6, is also provided with driver element 5, and driver element 5 rises for driving lock body 1 or declines.
The dam of the present embodiment, specific works mode in use and all optional enlargement technology of lock body 1, with reference to the record of above-mentioned related embodiment, can not repeat them here.
The dam of the present embodiment, by being provided with drainage tube on lock body; The water inlet of drainage tube is arranged on the region of below 1/2 height of the side that meets water of lock body, lock body; Region on the height that the delivery port of drainage tube is arranged on the land side of lock body, the water inlet of drainage tube and under the design dash position of lock body.Adopt the technical scheme of the present embodiment, because drainage tube delivery port and design dash position have certain head difference, guarantee that drainage tube can normally work under the effect of this head difference, like this, water body before lock body can enter drainage tube through the water inlet of drainage tube, and under the effect of drainage tube delivery port with the head difference of design dash position, discharge from the delivery port of drainage tube.Because the water body before lock body constantly enters the water inlet of drainage tube, thus drive the water body before lock body can flow into lower floor from upper strata, thus increase the oxygen content of lower floor's water quality, effectively improve the water quality before lock body.And when carrying out the water yield and being little, before lock body, bottom water body flows out through drainage tube, in the water air flowed out, jet flow drops to downstream water, and in this process, the disturbance of water body is mixed with a large amount of oxygen, while improving in pipe the water quality spraying water body, also can improve the water quality of downstream water.When carrying out the water yield and being larger, the water body spraying water body and lock body top from drainage tube carries out mutual impact, not only increases the dissolved oxygen content of water body, improves water quality, can also form the water landscape of different levels, enriches overcurrent form and the moulding of gate.And the present embodiment by arranging drainage tube on lock body, its structure is simple, and cost is low, is also convenient to very much letter and repaiies; Overcurrent form and the moulding of lock body can also be enriched simultaneously, there is extraordinary landscape effect.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (9)
1. be provided with a lock body for drainage tube, it is characterized in that, described lock body is provided with drainage tube; The water inlet of described drainage tube is arranged on the region of below 1/2 height of the side that meets water of described lock body, described lock body; Region on the height that the delivery port of described drainage tube is arranged on the land side of described lock body, the water inlet of described drainage tube and under the design dash position of described lock body.
2. lock body according to claim 1, is characterized in that, the region on the maximum sediment deposit that the water inlet of described drainage tube is arranged on applied river course upwards 10 centimetres.
3. lock body according to claim 1, is characterized in that, the delivery port of described drainage tube comprises circular pipe type delivery port.
4., according to the arbitrary described lock body of claim 1-3, it is characterized in that, the water outlet of described drainage tube is provided with plug, and described plug is used for when not needing draining, the delivery port of drainage tube described in shutoff.
5., according to the arbitrary described lock body of claim 1-3, it is characterized in that, described lock body can arrange multiple described drainage tube.
6. according to the arbitrary described lock body of claim 1-3, it is characterized in that, described lock body is the integrated weir body structure adopting reinforced concrete to cast.
7., according to the arbitrary described lock body of claim 1-3, it is characterized in that, described lock body adopts Vertical Lift sluice structure.
8. a dam, is characterized in that, described dam comprises the arbitrary described lock body of as above claim 1-6 and driver element, and described driver element is connected with described lock body, is elevated for driving described lock body.
9. dam according to claim 8, is characterized in that, described dam is hinge movable dam, hydraulic lifting dam or steel dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355626.4U CN204753517U (en) | 2015-05-28 | 2015-05-28 | Be provided with floodgate body and dam of drainage tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355626.4U CN204753517U (en) | 2015-05-28 | 2015-05-28 | Be provided with floodgate body and dam of drainage tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204753517U true CN204753517U (en) | 2015-11-11 |
Family
ID=54468243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520355626.4U Expired - Fee Related CN204753517U (en) | 2015-05-28 | 2015-05-28 | Be provided with floodgate body and dam of drainage tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN204753517U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317023A (en) * | 2015-11-18 | 2016-02-10 | 江苏省水利机械制造有限公司 | Door-in-door type gate |
| CN105600946A (en) * | 2016-02-15 | 2016-05-25 | 芜湖市银鸿液压件有限公司 | Ecologic hydraulic dam water purifying device and using method thereof |
| CN110820674A (en) * | 2019-11-16 | 2020-02-21 | 山东省水利工程局有限公司 | Drainage device for hydraulic engineering |
-
2015
- 2015-05-28 CN CN201520355626.4U patent/CN204753517U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317023A (en) * | 2015-11-18 | 2016-02-10 | 江苏省水利机械制造有限公司 | Door-in-door type gate |
| CN105317023B (en) * | 2015-11-18 | 2017-12-22 | 江苏省水利机械制造有限公司 | A kind of door in door formula gate |
| CN105600946A (en) * | 2016-02-15 | 2016-05-25 | 芜湖市银鸿液压件有限公司 | Ecologic hydraulic dam water purifying device and using method thereof |
| CN110820674A (en) * | 2019-11-16 | 2020-02-21 | 山东省水利工程局有限公司 | Drainage device for hydraulic engineering |
| CN110820674B (en) * | 2019-11-16 | 2021-07-30 | 山东省水利工程局有限公司 | Drainage device for hydraulic engineering |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |