CN106522174B - Improvement method and structure of extra-high water head plane sliding gate - Google Patents
Improvement method and structure of extra-high water head plane sliding gate Download PDFInfo
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- CN106522174B CN106522174B CN201611237443.8A CN201611237443A CN106522174B CN 106522174 B CN106522174 B CN 106522174B CN 201611237443 A CN201611237443 A CN 201611237443A CN 106522174 B CN106522174 B CN 106522174B
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- planar slide
- bearing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 210000000481 breast Anatomy 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 241000283216 Phocidae Species 0.000 description 34
- 230000000694 effects Effects 0.000 description 10
- 238000005192 partition Methods 0.000 description 9
- 238000003466 welding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000009466 transformation 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
- E02B7/28—Vertical-lift gates with sliding gates
-
- 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
- E02B7/54—Sealings for gates
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses an improved method and a structure of a plane sliding gate of an extra-high water head, wherein reverse supports (3) are arranged on two sides and the top of the upstream surface of the plane sliding gate (2), forward supports (4) are arranged on two sides and the top of the downstream surface of the plane sliding gate, a gate slot (1) is provided with a track (6) corresponding to the positions of the forward supports (4) and the reverse supports (3), and high breast walls (7, 8) are arranged on the upstream and the downstream; the upper part of the upstream surface (29) of the bottom edge of the gate is rounded, the upper part of the downstream surface (31) of the bottom edge of the gate is rounded, and the lower part of the gate is transited to the rear edge of a bottom water sealing pressing plate (33) below the plate horizontally by adopting an arc (34); the main support of the gate adopts three-side slideway bearing at two sides and top; a P-shaped water seal (9) and a pressurizing mountain-shaped water seal (10) are arranged at the downstream of the gate from inside to outside; the gate leaf sections are connected by bolts (13). The invention can solve the technical problems that the gate is easy to induce gate vibration, the gate is difficult to close when the gate moves water, the top of the gate can generate large deviation to the downstream side, the compression deformation of the water seal is damaged too much, and the like.
Description
Technical field
The present invention relates to hydraulic and hydroelectric engineering metal structure technical fields, and in particular to a kind of extra-high head planar slide lock
The improved method and structure of door.
Background technique
For extra-high head planar slide gate, generallys use downstream and one of sealing, downstream forward direction two sides arrangement two are set
The main supporting type of column sliding block, there are gate forward and reverse only left and right sides limit, gates, and vibration is easy to produce during Xiamen for this,
And the edge of a wing is generally broken line mutation structure after planar slide gate upstream face plate or bottom girder, will lead to the fluidised form disorder of water flow,
Increased water flow is also easy to induce radial gate vibration to the active force of gate, increases gate and moves the difficulty that water closes door；In addition,
Gate top is an elongated gerber beam without bearing, and opposite boundary beam rigidity is weaker, under the effect of extra-high head, gate top meeting
Larger offset downstream occurs, causes top seal compressive deformation excessive and destroys, drainage occurs, influences the sealing of gate
Effect；In addition, lock gate leaf assembling uses site welding pattern, live defect elimination difficulty is big if poor welding quality, so existing
Technical level or incomplete.
Summary of the invention
The purpose of the present invention is to provide the improved methods and structure of a kind of extra-high head planar slide gate, existing to solve
Such gate for having is easy to induce radial gate vibration, gate move water close a difficulty it is big, can be at the top of extra-high head effect tail gates
The technical problems such as larger offset occur for downstream side.
The present invention is implemented as follows:
The improved method of extra-high head planar slide gate of the invention be it is such, the gate upstream face two sides and
The reversed bearing of top setting, back side two sides and the positive bearing of top setting, gate slot setting are corresponding with forward and reverse bearing position
Track and the high breastwork of upstream and downstream setting, are conducive to gate and limit in advance when entering aperture section, forward and reverse to be all made of three margin positions
Reduce the deformation of gate and can prevent gate from swaying forwards and backwards, the preferable vibration reduced during gate Xiamen is conducive to gate
The safety of operation；Gate root edge upstream face top rounding, downstream face top rounding, after the bottom seal pressing plate below lower, transverse plate
Edge uses arc transition, and gate root edge flow-shape is smooth, reduces induction gate and closes a factor for vibration, is conducive to gate fortune
Capable safety；Gate it is main bearing use three side slideway pressure-bearing of two sides and top, reduce the deformation at the top of gate, make top seal with
Deformation of the water seal seat board under the effect of extra-high head in a certain range, effectively prevents the top seal of gate under high-pressure situations
Because deforming the excessive generation for leading to failure, pressurising " mountain " the type water seal with together with of one of p-type is arranged in gate downstream from inside to outside, increases
One of sealing defence line, is beneficial to prevent leak, enhances the water-stagnating effect of water seal；Lock gate leaf internode is connected by screw bolts, and is reduced
The difficulty of site welding workload and postwelding defect elimination advantageously ensures that the installation quality of gate.
Based on the above method, the improvement structure of extra-high head planar slide gate of the invention be it is such, it include set
The extra-high head planar slide gate in gate slot is set, is set in the upstream face two sides of the extra-high head planar slide gate and top
Reversed bearing, back side two sides and the positive bearing of top setting are set, lateral-supporting is arranged in side；Aforementioned gate slot is arranged and just tosses about
To the corresponding track of bearing position and high breastwork is arranged in upstream and downstream；One of p-type is arranged with together in aforementioned gate downstream from inside to outside
Pressurising " mountain " type water seal；Aforementioned gate is in two adjacent girder middle position merogenesis；It is respectively provided at aforementioned gate merogenesis up and down
The internode end face connecting plate that symmetrically makes simultaneously is bolted.
Wherein, drill bolt hole is matched between the internode end face connecting plate of aforementioned production symmetrical above and below, wherein having no less than 3%
Articulation hole；Aforementioned internode end face connecting plate and partition and side column web intersection are symmetrical arranged stiffening plate；Aforementioned internode end face connects
Fishplate bar opens handle hole at the medium position between partition between partition and side column web.
Setting upwarps pressing plate on the inside of aforementioned " mountain " type water seal.
Hinge formula reverse elasticity sliding block can be used in the reversed bearing of aforementioned gate two sides, hinge formula reverse elasticity is instead taken turns or lower part is set
The sliding block of rubber pad is set, the preferential sliding block using lower part setting rubber pad；It is located at the reversed bearing of aperture section at the top of aforementioned gate
The freely-supported side wheel, hinge formula reverse elasticity sliding block, hinge formula reverse elasticity that lower part setting rubber pad can be used instead are taken turns or lower part setting rubber
The sliding block of rubber mat, the preferential freely-supported side wheel using lower part setting rubber pad.
Support bracket is arranged in the reversed support foot for being located at aperture section at the top of aforementioned gate；Aforementioned support bracket is welded in lock
On door face board；Aforementioned support bracket is made of supporting faceplate, support webs and bearing transverse slat.
The aforementioned high breastwork top in upstream is oblique, reversed 5~20mm of supported clearance with aperture section；Aforementioned gate two sides it is anti-
To bearing and 5~20mm of gate slot orbit gap；Aforementioned gate lateral-supporting and 5~20mm of gate slot orbit gap；
Aforementioned gate root edge upstream face top rounding, downstream face top rounding, the bottom seal pressing plate below lower, transverse plate
Rear uses arc transition；Aforementioned gate bottom seal root edge uses oval cross section, and ellipse short shaft radius takes 10mm.
Compared with prior art, the invention has the following beneficial effects:
(1) the reversed bearing of upstream face two sides and top setting of gate, back side two sides and the positive bearing of top setting, door
Track corresponding with forward and reverse bearing position is arranged in slot and high breastwork is arranged in upstream and downstream, is conducive to gate when entering aperture section
It limits in advance, forward and reverse three margin positions that are all made of reduce the deformation of gate and can prevent gate from swaying forwards and backwards, preferably reduction lock
Vibration during door Xiamen, is conducive to the safety of gate operation.
(2) gate root edge upstream face top rounding, downstream face top rounding, after the bottom seal pressing plate below lower, transverse plate
Edge uses arc transition, and gate root edge flow-shape is smooth, reduces induction gate and closes a factor for vibration, is conducive to gate fortune
Capable safety.
(3) the main bearing of gate uses three side slideway pressure-bearing of two sides and top, reduces the deformation at the top of gate, makes top seal
In a certain range with deformation of the water seal seat board under the effect of extra-high head, it is therefore prevented that the top seal of gate is acted in extra-high head
It is lower because deform it is excessive cause failure generation, effectively extend the service life of water seal.
(4) pressurising " mountain " the type water seal with together with of one of p-type is arranged in gate downstream from inside to outside, increases by one of sealing defence line,
It is beneficial to prevent leak, and the setting of " mountain " type water seal inside upwarps pressing plate and water seal is effectively prevent to become inwardly under effect of water pressure
Shape is excessive.
(5) gate advantageously ensures that the globality of main beam structure in two adjacent girder middle position merogenesis, enhances lock
The mechanical property of door, reduces the manufacture difficulty of gate.
(6) it is respectively provided with the internode end face connecting plate of production symmetrical above and below at gate merogenesis, matches between the connecting plate of internode end face
Drill bolt hole, wherein there is no less than 3% articulation hole, internode end face connecting plate is between partition between partition and side column web
Medium position at open handle hole, preferably reduce gate flap internode contraposition and bolt assembly difficulty, and reduce site welding work
The difficulty of work amount and postwelding defect elimination advantageously ensures that the installation quality of gate.
Detailed description of the invention
Fig. 1 is arrangement schematic diagram of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1；
Fig. 4 is upstream view of the invention；
Fig. 5 is downstream view of the invention；
Fig. 6 is the side view of Fig. 5；
Fig. 7 is the C-C cross-sectional view of Fig. 5；
Fig. 8 is the D-D cross-sectional view of Fig. 5；
Fig. 9 is the top view of Fig. 5；
Figure 10 is the bottom view of Fig. 4；
Figure 11 is the E-E cross-sectional view of Fig. 5.
In Fig. 1~11: 1- gate slot, 2- planar slide gate, 3- reversely support, the bearing of 4- forward direction, 5- lateral-supporting, 6- rail
Road, the high breastwork in the upstream 7-, the high breastwork in the downstream 8-, the water seal of 9-P type, 10- pressurising " mountain " type water seal, 11- girder, 12- internode end face
Connecting plate, 13- bolt, 14- bolt hole, 15- partition, 16- side column web, 17- stiffening plate, 18- handle hole, 19- upwarp pressing plate,
20- rubber pad, 21- sliding block, 22- freely-supported side wheel, 23- support bracket, 24- gate panel, 25- supporting faceplate, 26- support abdomen
Under plate, 27- bearing transverse slat, the bevelling 28-, 29- gate root edge upstream face, 30- rounded corner, 31- gate root edge downstream face, 32-
Portion's transverse plate, 33- bottom seal pressing plate, 34- circular arc, 35- bottom seal, 36- oval cross section.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is looked first at, Fig. 1 illustrates arrangement schematic diagram of the present invention, it will be noted from fig. 1 that the present invention is set in gate slot 1
Set extra-high head planar slide gate 2.The high breastwork 7 in upstream and the high breastwork 8 in downstream is arranged in gate slot 1；More detailed structure, such as Fig. 2-
Described in 3, from the figure, it can be seen that the upstream face two sides of extra-high head planar slide gate 2 and the reversed bearing 3 of top setting, back
Water surface two sides and the positive bearing 4 of top setting, lateral-supporting 5 is arranged in side；The setting of gate slot 1 is corresponding with positive and negative lateral-supporting position
Track 6.
Fig. 4 is upstream view of the invention, and Fig. 5 is downstream view of the invention, sees Fig. 5, can see in Fig. 5, plane
One of p-type water seal 9 pressurising " mountain " type water seal 10 with together with is arranged in 2 downstream of sliding gate from inside to outside；Planar slide gate 2 is in phase
Adjacent two girders, 11 middle position merogenesis；The internode end face that production symmetrical above and below is respectively provided at 2 merogenesis of planar slide gate connects
Fishplate bar 12 is simultaneously connected by bolt 13；Fig. 6 is the side view of Fig. 5.
Fig. 7 is the C-C cross-sectional view of Fig. 5, and Fig. 8 is the D-D cross-sectional view of Fig. 5, and Fig. 9 is the top view of Fig. 5, and Figure 10 is Fig. 4
Bottom view, Figure 11 are the E-E cross-sectional views of Fig. 5.From the figures above it can be seen that the internode end face connecting plate 12 of production symmetrical above and below
Between match drill bolt hole 14, wherein there is no less than 3% articulation hole；Internode end face connecting plate 12 and partition 15 and side column web 16
Intersection is symmetrical arranged stiffening plate 17；Internode end face connecting plate 12 is between partition 15 between partition 15 and side column web 16
Handle hole 18 is opened at medium position；Setting upwarps pressing plate 19 on the inside of " mountain " type water seal 10；The reversed branch of 2 two sides of planar slide gate
Hold 3 sliding blocks 21 that rubber pad 20 is set using lower part；It is located under 3 use of reversed bearing of aperture section at the top of planar slide gate 2
The freely-supported side wheel 22 of portion's setting rubber pad 20.
Support bracket 23 is arranged in 3 bottoms of reversed bearing for being located at aperture section at the top of planar slide gate 2；Support bracket 23 is welded
It is connected on gate panel 24；Support bracket 23 is made of supporting faceplate 25, support webs 26 and bearing transverse slat 27；The high breastwork in upstream
7 tops bevelling 28,3 5~20mm of gap of reversed bearing with aperture section；The reversed bearing 3 of 2 two sides of planar slide gate and door
6 5~20mm of gap of groove track；Gate lateral-supporting 5 and 6 5~20mm of gap of gate slot track；It falls on 29 top of gate root edge upstream face
Fillet 30,31 top rounded corner 30 of gate root edge downstream face, 33 rear of bottom seal pressing plate below lower, transverse plate 32 is using circle
34 transition of arc；35 root edge of gate bottom seal uses oval cross section 36, and ellipse short shaft radius takes 10mm.
The technical principle and have the technical effect that the upstream face in the planar slide gate 2 that improved procedure of the invention is implemented
Two sides and the reversed bearing 3 of top setting, back side two sides and the positive bearing 4 of top setting, it is the setting of gate slot 1 and positive bearing 4, anti-
To the corresponding track 6 in 3 positions of bearing and the high breastwork 7 in upstream and the high breastwork 8 in downstream is arranged in gate slot 1, is conducive to gate in access aperture
It is limited in advance when mouth section, forward and reverse three margin positions that are all made of reduce the deformation of gate and can prevent gate from swaying forwards and backwards, and reduce
Vibration of gate during Xiamen is conducive to the safety of gate operation；29 top rounding of gate root edge upstream face, gate root edge
31 top rounding of downstream face, 33 rear of bottom seal pressing plate below lower, transverse plate use 34 transition of circular arc, gate root edge water flow
Fluidised form is smooth, reduces induction gate and closes a factor for vibration；The main bearing of gate uses three side slideway pressure-bearing of two sides and top, reduces
The deformation range of deformation at the top of gate, limitation top seal and water seal seat board under the effect of extra-high head, prevents the top water of gate
It is enclosed under high-pressure situations because deforming the excessive generation for leading to failure；One of p-type water seal 9 is arranged with together in gate downstream from inside to outside
Pressurising " mountain " type water seal 10 increases by one of sealing defence line, is beneficial to prevent leak, enhances the water-stagnating effect of water seal；Lock gate leaf
Internode is connected using bolt 13, is reduced the difficulty of site welding workload and postwelding defect elimination, is advantageously ensured that the installation matter of gate
Amount.
Certainly, above is specific application example of the invention, and there are other embodiments of the invention, all using equivalent
The technical solution that replacement or equivalent transformation are formed, all falls within protection scope of the presently claimed invention.
Claims (7)
1. a kind of improvement structure of extra-high head planar slide gate, it includes the extra-high head plane being arranged in gate slot (1)
Sliding gate (2), it is characterised in that: reversed in the upstream face two sides of the extra-high head planar slide gate (2) and top setting
It supports (3), back side two sides and the positive bearing (4) of top setting, lateral-supporting (5) are arranged in side；In gate slot (1) setting and just
To bearing (4), the reversed corresponding track in position (6) for supporting (3) and lateral-supporting (5) and upstream is respectively set in upstream and downstream
High breastwork (7) and the high breastwork in downstream (8)；Planar slide gate (2) downstream be arranged from inside to outside one of p-type water seal (9) and
One of pressurising " mountain " type water seal (10)；The planar slide gate (2) is in two adjacent girder middle position merogenesis, gate merogenesis
Place is respectively provided with the internode end face connecting plate (12) of production symmetrical above and below and is connected by bolt (13).
2. the improvement structure of extra-high head planar slide gate according to claim 1, it is characterised in that: the pressurising
Setting upwarps pressing plate (19) on the inside of " mountain " type water seal (10).
3. the improvement structure of extra-high head planar slide gate according to claim 1, it is characterised in that: the plane is sliding
The reversed bearing (3) of dynamic gate (2) two sides is instead taken turns using hinge formula reverse elasticity sliding block, hinge formula reverse elasticity or lower part setting rubber
Pad the sliding block (21) of (20)；Rubber pad is arranged using lower part in the reversed bearing (3) for being located at aperture section at the top of planar slide gate (2)
(20) freely-supported side wheel (22), hinge formula reverse elasticity sliding block, hinge formula reverse elasticity instead take turnss or the cunning of rubber pad (20) is arranged in lower part
Block (21).
4. the improvement structure of extra-high head planar slide gate according to claim 3, it is characterised in that: the plane is sliding
Support bracket (23) are arranged in reversed bearing (3) bottom for being located at aperture section at the top of dynamic gate (2), which is welded in
On gate panel (24).
5. the improvement structure of extra-high head planar slide gate according to claim 4, it is characterised in that: the branch support
Frame (23) is made of supporting faceplate (25), support webs (26) and bearing transverse slat (27).
6. the improvement structure of extra-high head planar slide gate according to claim 3, it is characterised in that: the upstream is high
Breastwork (7) top is oblique, reversed bearing (3) 5~20mm of gap with aperture section；The reversed bearing (3) of the gate two sides with
Track (6) 5~20mm of gap on gate slot (1)；Track (6) gap 5 on the gate lateral-supporting (5) and gate slot (1)~
20mm。
7. the improvement structure of extra-high head planar slide gate according to claim 1, it is characterised in that: on gate root edge
Trip face (29) top rounding, gate root edge downstream face (31) top rounding, the bottom seal pressing plate of lower, transverse plate (32) below
(33) rear uses circular arc (34) transition；Gate bottom seal (35) root edge uses oval cross section (36), and ellipse short shaft radius takes
10mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237443.8A CN106522174B (en) | 2016-12-28 | 2016-12-28 | Improvement method and structure of extra-high water head plane sliding gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611237443.8A CN106522174B (en) | 2016-12-28 | 2016-12-28 | Improvement method and structure of extra-high water head plane sliding gate |
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| Publication Number | Publication Date |
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| CN106522174A CN106522174A (en) | 2017-03-22 |
| CN106522174B true CN106522174B (en) | 2018-12-18 |
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| CN201611237443.8A Active CN106522174B (en) | 2016-12-28 | 2016-12-28 | Improvement method and structure of extra-high water head plane sliding gate |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108018833B (en) * | 2017-12-05 | 2024-07-19 | 中国电建集团贵阳勘测设计研究院有限公司 | Small-hole integral casting surface hole arc door |
| CN107964923B (en) * | 2017-12-05 | 2024-05-14 | 中国电建集团贵阳勘测设计研究院有限公司 | Improved method and structure of sluice down-the-hole plane accident gate |
| CN109137845B (en) * | 2018-06-08 | 2024-04-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Small-hole integral casting type plane fixed wheel overhaul gate |
| CN109113035A (en) * | 2018-10-12 | 2019-01-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Design method and structure of detachable tail water cooler maintenance gate |
| CN109183733A (en) * | 2018-10-17 | 2019-01-11 | 中国电建集团贵阳勘测设计研究院有限公司 | Water seal device of ultra-high water pressure difference plane gate |
| CN109356109B (en) * | 2018-12-10 | 2024-02-13 | 中国电建集团贵阳勘测设计研究院有限公司 | Bidirectional limiting device of plane gate |
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| CN2440058Y (en) * | 1999-05-11 | 2001-07-25 | 刘刊 | Lintel water-stopping structure of arc-shaped sluice gate |
| EP1389653A1 (en) * | 2002-08-13 | 2004-02-18 | Rouby Industrie | Operation device for mechanisms associated to locks and for flow control of rivers |
| CN203213081U (en) * | 2013-04-03 | 2013-09-25 | 中国水电顾问集团贵阳勘测设计研究院 | Super high head plane slide sluice structure |
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| CN206352281U (en) * | 2016-12-28 | 2017-07-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Improved structure of extra-high water head plane sliding gate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4056658B2 (en) * | 1999-07-30 | 2008-03-05 | 独立行政法人 日本原子力研究開発機構 | Divided gate head differential pressure double-sided seal structure and divided gate equipped with this seal structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2440058Y (en) * | 1999-05-11 | 2001-07-25 | 刘刊 | Lintel water-stopping structure of arc-shaped sluice gate |
| EP1389653A1 (en) * | 2002-08-13 | 2004-02-18 | Rouby Industrie | Operation device for mechanisms associated to locks and for flow control of rivers |
| CN203213081U (en) * | 2013-04-03 | 2013-09-25 | 中国水电顾问集团贵阳勘测设计研究院 | Super high head plane slide sluice structure |
| CN205475117U (en) * | 2016-03-25 | 2016-08-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Sprocket gate structure |
| CN206352281U (en) * | 2016-12-28 | 2017-07-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Improved structure of extra-high water head plane sliding gate |
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