CN107130566B - Small-hole opening integrally-cast down-the-hole arc door - Google Patents
Small-hole opening integrally-cast down-the-hole arc door Download PDFInfo
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- CN107130566B CN107130566B CN201710464560.6A CN201710464560A CN107130566B CN 107130566 B CN107130566 B CN 107130566B CN 201710464560 A CN201710464560 A CN 201710464560A CN 107130566 B CN107130566 B CN 107130566B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000005266 casting Methods 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 238000003466 welding Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 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
- E02B7/40—Swinging or turning gates
- E02B7/42—Gates of segmental or sector-like shape with horizontal axis
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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
- 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
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
Abstract
The invention discloses a small-hole integrally-cast down-the-hole arc door. The side wheel device comprises a door body, wherein the door body is an integral arc door formed by one-step casting, and side wheel devices are arranged on two sides of the door body; the door body is hinged with the fixed hinged support through a pin shaft; the door body comprises a door leaf and a pair of fan-shaped support arms, the pair of fan-shaped support arms are positioned on the back surface of the door leaf and are symmetrical to the central line of the gate hole, the unfolding ends of the fan-shaped support arms are connected with the back surface of the door leaf, the other ends of the fan-shaped support arms are provided with hinges, and the hinges are hinged with fixed hinge seats fixed on the gate wall through hinge pins. When the invention is used for casting, the casting liquid has good fluidity, the invention is convenient for casting, welding is not needed, the manufacturing difficulty is reduced, the quality of the arc door is ensured, the connection of a door leaf, a support arm and a hinge is not needed in field installation, only water seal, side wheels and the installation of the arc door and a fixed hinged support are carried out, the installation procedure is simple, the precision is high, and the installation efficiency is effectively improved.
Description
Technical Field
The invention relates to a small-hole integrally-cast down-the-hole arc door, and belongs to the technical field of hydraulic and hydroelectric engineering metal structures.
Background
Arc gate is a water drainage facility adopted in water conservancy project, but for 6m of orifice area 2 The small-hole high-water-head and ultrahigh-water-head down-hole radial gates have the defects that the steel plate is thick due to small overall dimension and large water pressure of the gate, the traditional welded gate structure is adopted, the welding space is narrow, the welding operation of workers is difficult, the welding quality is difficult to guarantee, the manufacturing difficulty is high, and all the prior art still has defects and needs to be further improved.
Disclosure of Invention
The invention aims to provide a small-hole integrally cast down-the-hole arc door, which is used for mounting on site without connecting a door leaf, a support arm and a hinge and only mounting a water seal, a side wheel, an arc door and a fixed hinged support, so that the mounting procedure is simple, the precision is high, the mounting efficiency can be effectively improved, and the defects of the prior art are overcome.
The technical scheme of the invention is realized as follows:
the invention relates to a small-hole integrally-cast down-the-hole arc door, which comprises a door body, wherein the door body is an integrally-cast arc door, and side wheel devices are arranged on two sides of the door body; the door body is hinged with the fixed hinged support through a pin shaft; the door body comprises a door leaf and a pair of fan-shaped support arms, the pair of fan-shaped support arms are positioned on the back surface of the door leaf and are symmetrical to the central line of the gate hole, the unfolding ends of the fan-shaped support arms are connected with the back surface of the door leaf, the other ends of the fan-shaped support arms are provided with hinges, and the hinges are hinged with fixed hinge seats fixed on the gate wall through hinge pins.
In the small-orifice integrally cast down-the-hole arc door, the fan-shaped support arm comprises a support arm inner flange support rib and a support arm outer flange support rib, the support arm inner flange support rib and the support arm outer flange support rib are in fan shapes, and a group of radially arranged trapezoidal guide holes are arranged on each fan shape; the support rib at the inner flange edge of the support arm is connected with the support rib at the outer flange edge of the support arm through an arc rib plate and a group of support arm web plates which are arranged in a radial shape.
In the small-hole-opening integrally-cast down-the-hole arc door, the door leaf comprises a panel and an arc flange plate; a water seal device is arranged on the upstream face of the panel, a lifting lug grid beam is arranged between the panel and the arc-shaped flange plate and positioned at the central line of the gate hole, connecting grid beams are respectively arranged on two sides of the lifting lug grid beam, and support arm grid beams are respectively arranged on the outer sides of the two connecting grid beams; the outer sides of the two support arm lattice beams are respectively provided with a water seal lattice beam; the bottom of the door leaf is provided with a bottom edge, the bottom edge is provided with an L-shaped notch, and the L-shaped notch is connected with the bottom water seal through a screw.
In the small-hole integrally cast down-the-hole radial gate, the lifting lug grid beam is a rectangular arc tube, the cross section of the lifting lug grid beam is a rectangle surrounded by a panel, an arc flange plate and two lifting lug plate ribs, and a group of radial transverse ribs are arranged in the rectangle; the connecting grid beam is a rectangular arc tube, the cross section of the connecting grid beam is a rectangle surrounded by a panel, an arc flange plate, lifting lug plate ribs and support arm inner flange support ribs, and a group of radial transverse ribs are arranged in the rectangle; the support arm grid beam is in a rectangular arc tube shape, the cross section of the support arm grid beam is a rectangle surrounded by a panel, an arc flange plate, support arm inner flange support ribs and support arm outer flange support ribs, and a group of radial transverse ribs is arranged in the rectangle.
In the small-orifice integrally cast down-the-hole arc door, two side edges of the door leaf are respectively provided with a water seal lattice beam for supporting side water seal, the water seal lattice beam is in a rectangular arc tube shape, and the cross section of the water seal lattice beam is a rectangle surrounded by a panel, a vertical water flow direction rib plate, a water flow direction rib plate and a support arm outer flange support rib; wherein, the lateral water seal limit short rib is arranged along the water flow direction outside the rib plate, and a group of radial transverse ribs is arranged in the rectangle.
In the small-hole-opening integrally-cast down-the-hole arc door, the hinge comprises a connecting hole plate, and the connecting hole plate is connected with the top plate through a radial rib and an inclined-plane rib plate; the top plate is connected with the fan-shaped support arm.
In the small-hole-opening integrally-cast down-the-hole arc door, the transverse ribs, the arc flange plates, the support arm web plates, the arc rib plates and the radial ribs are all provided with flow guide holes with different shapes and sizes, and the flow guide holes are round holes, rectangular holes, long round holes, triangular holes or elliptical holes; the corners of the diversion holes are rounded corners.
Compared with the prior art, the small-hole integrally-cast down-the-hole arc door adopts a structure that the door leaf, the support arm and the hinge are cast into a whole, the support arm adopts a fan-shaped structure, the door body structure is provided with the flow guide holes in different shapes at each grid of the door leaf, the support arm and the hinge, the flow guide holes are communicated with one another, the fluidity of casting liquid is good, the casting is convenient, the welding is not needed, the manufacturing difficulty is reduced, the quality of the arc door is ensured, the field installation does not need to connect the door leaf, the support arm and the hinge, only the water seal, the side wheels and the arc door are installed with the fixed hinge base, the installation procedure is simple, the precision is high, and the installation efficiency is effectively improved; the side wheel device is arranged at the intersection of the support arm support rib and the support arm web plate with the arc-shaped flange plate, the center of the side wheel is superposed with the intersection point of the support arm support rib and the support arm web plate, the support arm support rib, the support arm web plate and the arc-shaped flange plate are provided with flow guide holes, and an operator can install bolts through the flow guide holes, so that the installation is convenient; the external dimension of the cast door body is slightly larger than the actual dimension by 1-5 mm, so that the door leaf can be machined at the position required by finish machining to meet the precision requirement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
fig. 5 is a schematic structural view of the door body.
In the figure: 1-door body, 2-fixed hinged support, 3-pin shaft, 4-side wheel device, 5-water seal device, 6-door leaf, 7-sector support arm, 8-hinge, 9-water seal lattice beam, 10-support arm lattice beam, 11-connection lattice beam, 12-lifting lug lattice beam, 13-bottom edge, 14-panel, 15-downstream flow rib plate, 16-vertical flow rib plate, 17-side water seal limit short rib, 18-support arm outer flange support rib, 19-transverse rib, 21-arc flange plate, 22-support arm inner flange support rib, 23-lifting lug plate rib, 25-support arm web plate, 26-arc rib plate, 27-top plate, 28-inclined plane rib plate, 29-radial rib, 30-connection pore plate, 31-trapezoidal flow guide hole, 36-flow guide hole, 38-bottom water seal and 40-rubber cushion plate.
Detailed Description
The invention is described in further detail below with reference to the following figures and examples, but without any limitation thereto.
The small-hole integrally-cast down-the-hole arc door is an integrally-cast arc door, and as shown in fig. 1-4, side wheel devices 4 are arranged on two sides of a door body 1; the door body 1 is hinged with the fixed hinged support 2 through a pin shaft 3; the door body 1 comprises a door leaf 6 and a pair of fan-shaped support arms 7, the pair of fan-shaped support arms 7 are located on the back surface of the door leaf 6 and are symmetrical to the central line of the gate hole, the unfolding ends of the fan-shaped support arms 7 are connected with the back surface of the door leaf 6, hinges 8 are arranged at the other ends of the fan-shaped support arms 7, and the hinges 8 are hinged to fixed hinged supports 2 fixed on the gate wall through hinge pins 3. The fan-shaped support arm 7 comprises support arm inner flange support ribs 22 and support arm outer flange support ribs 18, the support arm inner flange support ribs 22 and the support arm outer flange support ribs 18 are fan-shaped, and a group of radial trapezoidal guide holes 31 are formed in each fan-shaped; the arm inner flange support ribs 22 are connected to the arm outer flange support ribs 18 by arcuate ribs 26 and a set of radially disposed arm webs 25. The door leaf 6 comprises a panel 14 and an arc-shaped flange plate 21; a water seal device 5 is arranged on the upstream surface of the panel 14, a lifting lug lattice beam 12 is arranged between the panel 14 and the arc flange plate 21 and positioned at the central line of the gate hole, two sides of the lifting lug lattice beam 12 are respectively provided with a connecting lattice beam 11, and the outer sides of the two connecting lattice beams 11 are respectively provided with a support arm lattice beam 10; the outer sides of the two support arm lattice beams 10 are respectively provided with a water seal lattice beam 9; the bottom of the door leaf 6 is provided with a bottom edge 13, the bottom edge 13 is provided with an L-shaped notch, and the L-shaped notch is connected with a bottom water seal 38 through a screw. As shown in fig. 5, the shape of the lifting lug grid beam 12 is a rectangular arc tube, the cross section of the lifting lug grid beam 12 is a rectangle surrounded by a panel 14, an arc flange plate 21 and two lifting lug plate ribs 23, and a group of transverse ribs 19 which are radially arranged are arranged in the rectangle; the connecting grid beam 11 is in a rectangular arc tube shape, the section of the connecting grid beam 11 is a rectangle surrounded by a panel 14, an arc flange plate 21, a lifting lug plate rib 23 and a support arm inner flange support rib 22, and a group of radial transverse ribs 19 are arranged in the rectangle; the shape of the support arm grid beam 10 is a rectangular arc tube, the cross section of the support arm grid beam 10 is a rectangle enclosed by a panel 14, an arc flange plate 21, a support arm inner flange support rib 22 and a support arm outer flange support rib 18, and a group of radial arranged transverse ribs 19 are arranged in the rectangle. Two sides of the door leaf 6 are respectively provided with a water sealing lattice beam 9 for supporting side water sealing, the water sealing lattice beam 9 is in a rectangular arc pipe shape, and the cross section of the water sealing lattice beam 9 is a rectangle surrounded by a panel 14, a vertical water flow direction ribbed plate 16, a following water flow direction ribbed plate 15 and a support arm outer flange support rib 18; wherein, the outer side of the downstream rib plate 15 is provided with a side water seal limit short rib 17, and a group of radial transverse ribs 19 is arranged in the rectangle. The hinge 8 comprises a connecting pore plate 30, and the connecting pore plate 30 is connected with the top plate 27 through a radial rib 29 and a bevel rib plate 28; the top plate 27 is connected to the sector arm 7. The transverse ribs 19, the arc flange plates 21, the support arm web plates 25, the arc rib plates 26 and the radial ribs 29 are all provided with flow guide holes 36 with different shapes and sizes, and the flow guide holes 36 are round holes, rectangular holes, long round holes, triangular holes or elliptical holes; the corners of the diversion holes 36 are rounded.
Examples
As shown in fig. 1-5, the small-hole integrally cast down-the-hole arc door of the present embodiment is formed by hinging a door body 1 and a fixed hinged support 2 through a pin shaft 3; the two sides of the door body 1 are provided with side wheel devices 4, and the periphery is provided with a water seal device 5. The door body 1 consists of a door leaf 6, a fan-shaped support arm 7 and a hinge 8; the door leaf 6 consists of a water sealing lattice beam 9, a support arm lattice beam 10, a connecting lattice beam 11, a lifting lug lattice beam 12 and a bottom edge 13; the water seal lattice beam 9, the support arm lattice beam 10, the connecting lattice beam 11 and the lifting lug lattice beam 12 are symmetrically arranged relative to the central line of the gate hole; the water seal lattice beam 9 consists of a panel 14, a water flowing rib plate 15, a vertical water flowing rib plate 16, a side water seal limiting short rib 17, a support arm outer flange support rib 18 and a transverse rib 19; the vertical water flow direction rib plate 16 is provided with a rectangular diversion hole; the support arm grid beam 10 consists of a panel 14, support arm outer flange support ribs 18, cross ribs 19 and arc-shaped flange plates 21; the connecting grid beam 11 consists of a panel 14, a support arm inner flange support rib 22, a lifting lug plate rib 23, a transverse rib 19 and an arc flange plate 21; the lifting lug grid beam 12 consists of a panel 14, lifting lug plate ribs 23, transverse ribs 19 and arc-shaped flange plates 21; the fan-shaped support arm 7 consists of symmetrically arranged fan-shaped flange plates, a support arm web plate 25 and arc-shaped rib plates 26; the fan-shaped flange plate comprises a support arm outer flange support rib 18 and a support arm inner flange support rib 22; the hinge 8 consists of a top plate 27, an inclined plane rib plate 28, a radial rib 29 and a connecting pore plate 30; the inclined rib plates 28 are symmetrically arranged; the top plate 27 and the two outer inclined rib plates 28 form an approximate triangular structure; the panel 14, the arc flange plate 21 and the arc rib plate 26 are all arc-shaped and concentric; the fan-shaped flange plate is provided with a trapezoidal flow guide hole 31; the trapezoidal flow guide holes 31 are approximately isosceles trapezoids, and the inner parts of the trapezoidal flow guide holes are rounded; the radial ribs 29 correspond to the support arm web plates 25 in position and are provided with circular diversion holes; the arc-shaped rib plates 26 are provided with circular diversion holes or diversion oblong holes between the support arm web plates 25 and at the upper parts of the two outer side support arm web plates 25; the support arm web plate 25 is provided with rectangular diversion holes between the fan-shaped flange plate and the arc-shaped rib plate 26 and between the arc-shaped rib plate 26 and the hinge top plate 27; the top plate 27 is provided with rectangular diversion holes at positions between the radial ribs 29; the inner part of the rectangular diversion hole is rounded; the arc flange plate 21 is provided with a diversion hole 36 in the middle of each cell; the lower part of the bottom edge 13 is provided with an inverted L-shaped notch for placing a bottom water seal 38; the bottom water seal 38 is fixed by screws; the side wheel device 4 is arranged at the intersection of the support arm outer flange support rib 18 and the support arm web plate 25 and the arc flange plate 21, and the center of the side wheel is superposed with the intersection point; the bottom of the side wheel device 4 is provided with a rubber pad 40.
Claims (8)
1. The utility model provides a little entrance to a cave integral casting down-the-hole arc door, includes door body (1), its characterized in that: the door body (1) is an integral arc door formed by one-step casting, and side wheel devices (4) are arranged on two sides of the door body (1); the door body (1) is hinged with the fixed hinged support (2) through a pin shaft (3); the door body (1) comprises a door leaf (6) and a pair of fan-shaped support arms (7), the pair of fan-shaped support arms (7) are positioned on the back water surface of the door leaf (6) and are symmetrical to the central line of a gate hole, the unfolding ends of the fan-shaped support arms (7) are connected with the back water surface of the door leaf (6), the other ends of the fan-shaped support arms (7) are provided with hinges (8), and the hinges (8) are hinged with fixed hinged supports (2) fixed on a gate wall through pin shafts (3); the fan-shaped support arm (7) comprises support arm inner flange support ribs (22) and support arm outer flange support ribs (18), the support arm inner flange support ribs (22) and the support arm outer flange support ribs (18) are fan-shaped, and a group of trapezoidal flow guide holes (31) which are radially arranged are formed in each fan-shaped; the support arm inner flange support ribs (22) are connected with the support arm outer flange support ribs (18) through arc-shaped rib plates (26) and a group of support arm web plates (25) which are radially arranged; the door leaf (6) comprises a panel (14) and an arc flange plate (21); a water seal device (5) is arranged on the upstream surface of the panel (14), a lifting lug lattice beam (12) is arranged between the panel (14) and the arc-shaped flange plate (21) and positioned at the central line of the gate hole, two sides of the lifting lug lattice beam (12) are respectively provided with a connecting lattice beam (11), and the outer sides of the two connecting lattice beams (11) are respectively provided with a support arm lattice beam (10); the outer sides of the two support arm lattice beams (10) are respectively provided with a water seal lattice beam (9); the bottom of the door leaf (6) is provided with a bottom edge (13), the bottom edge (13) is provided with an L-shaped notch, and the L-shaped notch is connected with a bottom water seal (38) through a screw.
2. The small bore integrally cast down-the-hole radial gate of claim 1, wherein: the lifting lug gridwork beam (12) is in a rectangular arc tube shape, the cross section of the lifting lug gridwork beam (12) is a rectangle formed by encircling a panel (14), an arc flange plate (21) and two lifting lug plate ribs (23), and a group of transverse ribs (19) which are radially arranged are arranged in the rectangle; the connecting grid beam (11) is in a rectangular arc tube shape, the section of the connecting grid beam (11) is a rectangle surrounded by a panel (14), an arc flange plate (21), a lifting lug plate rib (23) and a support arm inner flange support rib (22), and a group of radial transverse ribs (19) are arranged in the rectangle; the support arm grid beam (10) is in a rectangular arc tube shape, the cross section of the support arm grid beam (10) is a rectangle formed by enclosing a panel (14), an arc flange plate (21), a support arm inner flange support rib (22) and a support arm outer flange support rib (18), and a group of radial transverse ribs (19) are arranged in the rectangle.
3. The small bore integrally cast down-the-hole radial gate of claim 1, wherein: two side edges of the door leaf (6) are respectively provided with a water seal lattice beam (9) for supporting side water seal, the water seal lattice beam (9) is in a rectangular arc tube shape, and the cross section of the water seal lattice beam (9) is a rectangle surrounded by a panel (14), a vertical water flow direction rib plate (16), a water flow direction rib plate (15) and a support arm outer flange edge support rib (18); wherein, a side water seal limit short rib (17) is arranged at the outer side of the water flowing direction rib plate (15), and a group of radial arranged transverse ribs (19) is arranged in the rectangle.
4. The small bore integrally cast down-the-hole radial gate of claim 1, wherein: the hinge (8) comprises a connecting pore plate (30), and the connecting pore plate (30) is connected with the top plate (27) through a radial rib (29) and a slope rib plate (28); the top plate (27) is connected with the fan-shaped support arm (7).
5. The small bore integrally cast down-the-hole radial gate of claim 3, wherein: the transverse ribs (19) are provided with flow guide holes (36) with different shapes and sizes, and the flow guide holes (36) are round holes, rectangular holes, long round holes, triangular holes or elliptical holes; the corners of the diversion holes (36) are all round corners.
6. The small bore integrally cast down-the-hole arc door of claim 1, wherein: the arc-shaped flange plate (21) is provided with flow guide holes (36) with different shapes and sizes, and the flow guide holes (36) are round holes, rectangular holes, long round holes, triangular holes or elliptical holes; the corners of the diversion holes (36) are all round corners.
7. The small bore integrally cast down-the-hole arc door of claim 1, wherein: flow guide holes (36) with different shapes and sizes are formed in the support arm web plate (25) and the arc-shaped rib plate (26), and the flow guide holes (36) are round holes, rectangular holes, long round holes, triangular holes or elliptical holes; the corners of the diversion holes (36) are all round corners.
8. The small bore integrally cast down-the-hole arc door of claim 4, wherein: the radial ribs (29) are provided with guide holes (36) with different shapes and sizes, and the guide holes (36) are round holes, rectangular holes, long round holes, triangular holes or elliptical holes; the corners of the diversion holes (36) are all round corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464560.6A CN107130566B (en) | 2017-06-19 | 2017-06-19 | Small-hole opening integrally-cast down-the-hole arc door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710464560.6A CN107130566B (en) | 2017-06-19 | 2017-06-19 | Small-hole opening integrally-cast down-the-hole arc door |
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| Publication Number | Publication Date |
|---|---|
| CN107130566A CN107130566A (en) | 2017-09-05 |
| CN107130566B true CN107130566B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710464560.6A Active CN107130566B (en) | 2017-06-19 | 2017-06-19 | Small-hole opening integrally-cast down-the-hole arc door |
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| CN (1) | CN107130566B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN110700202A (en) * | 2019-10-17 | 2020-01-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Down-the-hole arc door bottom water seal device arranged on overflow weir |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322044A (en) * | 2011-06-21 | 2012-01-18 | 中国葛洲坝集团股份有限公司 | Method for mounting down-the-hole type arc gate embedded parts and water seals |
| CN202688965U (en) * | 2012-08-02 | 2013-01-23 | 中国水电顾问集团贵阳勘测设计研究院 | Ultra-large down-the-hole arc-shaped water gate |
| CN103590377B (en) * | 2013-11-13 | 2016-01-06 | 华北水利水电大学 | The steel arch-gate of girder is made of antinode shaped steel |
| CN205296095U (en) * | 2015-12-31 | 2016-06-08 | 中国电建集团贵阳勘测设计研究院有限公司 | Water seal device of ultrahigh water head radial gate |
| CN206090486U (en) * | 2016-08-29 | 2017-04-12 | 昆明理工大学 | Arc water sluicegate |
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2017
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