WO1990015902A1 - Threshold construction for a tilting weir - Google Patents

Threshold construction for a tilting weir Download PDF

Info

Publication number
WO1990015902A1
WO1990015902A1 PCT/NL1990/000087 NL9000087W WO9015902A1 WO 1990015902 A1 WO1990015902 A1 WO 1990015902A1 NL 9000087 W NL9000087 W NL 9000087W WO 9015902 A1 WO9015902 A1 WO 9015902A1
Authority
WO
WIPO (PCT)
Prior art keywords
weirgate
threshold
tilting
support plate
lower edge
Prior art date
Application number
PCT/NL1990/000087
Other languages
French (fr)
Inventor
Wilhelmus Gijsbertus Josef De Wit
Original Assignee
Waterschap Kromme Rijn
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Waterschap Kromme Rijn filed Critical Waterschap Kromme Rijn
Priority to EP90909778A priority Critical patent/EP0438549B1/en
Priority to DE69012543T priority patent/DE69012543T2/en
Publication of WO1990015902A1 publication Critical patent/WO1990015902A1/en

Links

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
    • E02B7/40—Swinging or turning gates
    • E02B7/42—Gates of segmental or sector-like shape with horizontal axis
    • 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

Definitions

  • Threshold construction for a tilting weir is a tilting weir.
  • the invention concerns a threshold construction for a tilting weir, which seals the underside of the weirgate to the threshold beam on the bottom of the canal.
  • the construction of the seal offers no obstructions to the gate movement.
  • the construction makes it possible to influence the operation of the weirgate through the form and the support of the seal.
  • Tilting weirs have demonstrated that they are capable of a close control of aimed weirlevels without the use of external scources of energy and electrical control equipment.
  • a similar weir is known from the Dutch patent application NL-A-8702118. With this type of weir water flows both under and over the weirgate. To prevent the weir operation being impaired by obstacles as transported by the stream, grates are fitted. In certain circumstances these grates are not adequate.
  • the invention intends to supply a sealing of the lower opening of the weir, without influencing the specific characteristics of the weir while the use of grates is suspended.
  • the invented construction which uses a flexible strip between the weirgate and the threshold construction on the bottom of the canal provides furthermore the possibility for a refinement of the control characteristics of the weir.
  • Fig. 1 shows a cross section of the weir in length of the canal.
  • Fig. 2 shows a similar cross section of the weir in two different positions.
  • Fig. 3 shows a protection possibility against objects thrown into the water.
  • Fig. 4 shows a detail of the connection between the support plate and suspension.
  • Fig. 5 shows an alternative form of the support plate and the lower edge of the weirgate in two positions.
  • the weirgate (1) is tilting on the shaft (2).
  • the weirgate (1) is held upright against the hydraulic pressure with cable (3) via transmission (4) by a floating counterweight (5).
  • the spindle construction (6) can adjust the shaft (2) vertically. In this way the weirlevel (7) can be controlled.
  • the downstream weirlevel (8) has some influence on the correct adjustment.
  • the lower edge (9) has an attachment (10) for a flexible strip (11) which has its other side attached to the upper edge (12) of a support plate (13) with strengtheners (14).
  • the support plate (13) is through bearingsleeves (15) connected to arms (16) by welding.
  • the arms (16) are rotatably suspended from the shaft (2) of the weirgate (1).
  • This shaft (17) carries with bearingsleeves (18) a threshold plate (19).
  • the threshold plate (19) is movable attached at (20) to a threshold beam (21) fixed to the bottom of the canal.
  • a plate (23) is hinged or flexibly attached to the weirgate (1) at (24) reaching over the attachment (12) of the flexible strip (11) offers the possibility to prevent dirt accumulation on the flexible strip (11).
  • Support plate (13) serves to support the flexible strip (11). Because the support plate (13) is suspended with arms (16) from the shaft (2) of the weirgate (1), the position of the support of the flexible strip (11) in relation to the lower edge (9) of the weirgate (1) will not change when the spindle construction (6) is used to adjust the shaft (2) of the weirgate (1).
  • the flexible strip (11) unwinds between the support plate (13) and the lower edge (9), the distance between the support plate (13) and the lower edge (9) is decisive for the resultant of the hydrostatic forces exerting on the unsupported areas of the flexible strip (11).
  • the support plate (13) and the lower edge (9) of the weirgate (1) are both circular farmed with axis (2) as centre, the behavior of the flexible strip (11) is neutral.
  • a progressive or regressive tilting character can. be attained. See fig. 5.
  • a weir is realised where the lower edge (9) of the weirgate (1) is sealingly connected with the threshold beam (21) on the bottom of the canal, without having any extra frictional losses.
  • the tilting effect of the weirgate (1) is not negatively influenced, where with the help of the flexible strip (11) and the profile of the support plate (13) and/or the profile of the lower edge (9) of the weirgate (1) makes an accurate adjustment of the required waterlevel possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Barrages (AREA)
  • Endoscopes (AREA)
  • Lock And Its Accessories (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Earth Drilling (AREA)

Abstract

The invention concerns a threshold construction for a tilting weir where the lower edge of the weirgate (1) is connected with the threshold beam (21) via a rolling seal (11). This rolling seal (11) permits free movement of the weirgate (1). The construction of the support plate (13) makes it possible to influence the operation of the weirgate (1) by altering the profile of the lower edge (9) of the weirgate (1) and the profile of the support plate (13).

Description

Threshold construction for a tilting weir.
The invention concerns a threshold construction for a tilting weir, which seals the underside of the weirgate to the threshold beam on the bottom of the canal. The construction of the seal offers no obstructions to the gate movement. The construction makes it possible to influence the operation of the weirgate through the form and the support of the seal.
Tilting weirs have demonstrated that they are capable of a close control of aimed weirlevels without the use of external scources of energy and electrical control equipment. A similar weir is known from the Dutch patent application NL-A-8702118. With this type of weir water flows both under and over the weirgate. To prevent the weir operation being impaired by obstacles as transported by the stream, grates are fitted. In certain circumstances these grates are not adequate.
The invention intends to supply a sealing of the lower opening of the weir, without influencing the specific characteristics of the weir while the use of grates is suspended.
The invented construction which uses a flexible strip between the weirgate and the threshold construction on the bottom of the canal provides furthermore the possibility for a refinement of the control characteristics of the weir.
The invention is described in conjunction with the drawings in which:
Fig. 1 shows a cross section of the weir in length of the canal.
Fig. 2 shows a similar cross section of the weir in two different positions.
Fig. 3 shows a protection possibility against objects thrown into the water.
Fig. 4 shows a detail of the connection between the support plate and suspension.
Fig. 5 shows an alternative form of the support plate and the lower edge of the weirgate in two positions.
The weirgate (1) is tilting on the shaft (2). The weirgate (1) is held upright against the hydraulic pressure with cable (3) via transmission (4) by a floating counterweight (5). The spindle construction (6) can adjust the shaft (2) vertically. In this way the weirlevel (7) can be controlled. The downstream weirlevel (8) has some influence on the correct adjustment.
The lower edge (9) has an attachment (10) for a flexible strip (11) which has its other side attached to the upper edge (12) of a support plate (13) with strengtheners (14). The support plate (13) is through bearingsleeves (15) connected to arms (16) by welding. The arms (16) are rotatably suspended from the shaft (2) of the weirgate (1).
Through the bearingsleeves (15) goes shaft (17). This shaft (17) carries with bearingsleeves (18) a threshold plate (19). The threshold plate (19) is movable attached at (20) to a threshold beam (21) fixed to the bottom of the canal.
A plate (23) is hinged or flexibly attached to the weirgate (1) at (24) reaching over the attachment (12) of the flexible strip (11) offers the possibility to prevent dirt accumulation on the flexible strip (11). Support plate (13) serves to support the flexible strip (11). Because the support plate (13) is suspended with arms (16) from the shaft (2) of the weirgate (1), the position of the support of the flexible strip (11) in relation to the lower edge (9) of the weirgate (1) will not change when the spindle construction (6) is used to adjust the shaft (2) of the weirgate (1). Because the flexible strip (11) unwinds between the support plate (13) and the lower edge (9), the distance between the support plate (13) and the lower edge (9) is decisive for the resultant of the hydrostatic forces exerting on the unsupported areas of the flexible strip (11). When the support plate (13) and the lower edge (9) of the weirgate (1) are both circular farmed with axis (2) as centre, the behavior of the flexible strip (11) is neutral. By changing the profile of the support plate (13) and/or the lower edge (9) a progressive or regressive tilting character can. be attained. See fig. 5. With the construction, according to the invention a weir is realised where the lower edge (9) of the weirgate (1) is sealingly connected with the threshold beam (21) on the bottom of the canal, without having any extra frictional losses. The tilting effect of the weirgate (1) is not negatively influenced, where with the help of the flexible strip (11) and the profile of the support plate (13) and/or the profile of the lower edge (9) of the weirgate (1) makes an accurate adjustment of the required waterlevel possible.

Claims

Claims.
1] Threshold construction for a tilting weir characterised in that the lower edge (9) of the weirgate (1) is connected with a flexible seal strip (11) to the upper edge (12) of a support plate (13) which is suspended from the tilting shaft (2) and rotatably connected via a tilting threshold plate (19) to the threshold beam (21) on the bottom of the canal. 2] Threshold construction for a tilting weir as in claim 1 characterised in that the flexible strip (11) cooperates with the support plate (13) and the lower edge (9) of the weirgate (1) to form a rolling seal. 3] Threshold construction for a tilting weir as in claim 1 and 2 characterised in that the profile and the position of the support plate (13) and the lower edge (9) of the weirgate (1) are such that during the unwinding of the flexible strip (11) the resultant of the hydrostatic forces exerted on the unsupported section of the flexible strip (11) and tranferred to the lower edge (9) of the weirgate (1) will be enlarged, reduced or remain constant, depending on the chosen form and/or position.
4] Threshold construction for a tilting weir as in claim 1, 2 and 3 characterised in that the hinged or flexible attached protection plate (23) extends from the weirgate (1) to beyond the upper edge (12) of the support plate (13)
PCT/NL1990/000087 1989-06-21 1990-06-20 Threshold construction for a tilting weir WO1990015902A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90909778A EP0438549B1 (en) 1989-06-21 1990-06-20 Threshold construction for a tilting weir
DE69012543T DE69012543T2 (en) 1989-06-21 1990-06-20 CONSTRUCTION OF A THRESHOLD FOR A TILTABLE LOCK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8901563A NL8901563A (en) 1989-06-21 1989-06-21 THRESHOLD CONSTRUCTION FOR ROCKER.
NL8901563 1989-06-21

Publications (1)

Publication Number Publication Date
WO1990015902A1 true WO1990015902A1 (en) 1990-12-27

Family

ID=19854872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1990/000087 WO1990015902A1 (en) 1989-06-21 1990-06-20 Threshold construction for a tilting weir

Country Status (7)

Country Link
US (1) US5171102A (en)
EP (1) EP0438549B1 (en)
AT (1) ATE111543T1 (en)
AU (1) AU5850990A (en)
DE (1) DE69012543T2 (en)
NL (1) NL8901563A (en)
WO (1) WO1990015902A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294079A (en) * 1994-10-15 1996-04-17 Cyril Anthony Timms Adjustable counterbalanced self-regulatory tilting weir.
WO2009082882A1 (en) * 2007-12-26 2009-07-09 Defu Li Gravity-operated opening and closing gate controlled by water level
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

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744147B1 (en) * 1996-01-26 1998-03-20 Sikora Bernard TILTING OVERWAY
US5944445A (en) * 1997-07-10 1999-08-31 Smart Vent, Inc. Device and method for relieving flooding from enclosed space
US6019665A (en) * 1998-04-30 2000-02-01 Fujitsu Limited Controlled retention of slurry in chemical mechanical polishing
GB9810192D0 (en) * 1998-05-14 1998-07-08 Timms Cyril A Self-regulating weirs and fishways
US6019898A (en) * 1998-06-23 2000-02-01 Aqua-Aerobic Systems, Inc. Weir assembly with movable baffle member
GB0127216D0 (en) * 2001-11-13 2002-01-02 Univ Edinburgh Watertight gate mechanism
US7726907B2 (en) 2006-08-10 2010-06-01 Mccreedy C Thomas Automatic trip gate
JP5180945B2 (en) * 2009-11-24 2013-04-10 日立造船株式会社 Mooring device for undulating gate breakwater
JP5971956B2 (en) * 2012-01-16 2016-08-17 日立造船株式会社 Floating flap gate
US9551153B2 (en) * 2015-04-08 2017-01-24 Smart Vent Products, Inc. Scupper door systems
US9353569B1 (en) 2015-04-08 2016-05-31 Smart Vent Products, Inc. Connectors for a flood vent
US10113309B2 (en) 2015-04-08 2018-10-30 Smart Vent Products, Inc. Flood vent barrier systems
US9376803B1 (en) 2015-04-08 2016-06-28 Smart Vent Products, Inc. Flood vent trigger systems
US9624637B2 (en) 2015-04-08 2017-04-18 Smart Vent Products, Inc. Flood vent
US11384498B2 (en) * 2015-09-25 2022-07-12 Hiroshi Tereta Sluice gate
US9637912B1 (en) 2015-12-10 2017-05-02 Smart Vent Products, Inc. Flood vent having a panel
US10385611B2 (en) * 2015-12-10 2019-08-20 Smart Vent Products, Inc. Flood vent having a panel
US10619345B2 (en) * 2015-12-10 2020-04-14 Smart Vent Products, Inc. Flood vent having a panel
US9758982B2 (en) 2015-12-10 2017-09-12 Smart Vent Products, Inc. Flood vent having a panel
US9719249B2 (en) 2015-12-10 2017-08-01 Smart Vent Products, Inc. Flood vent having a panel
DK179294B1 (en) * 2017-03-30 2018-04-16 Steen Olsen Invest Aps Flood protection
CN110144859B (en) * 2018-02-10 2020-09-15 扬州市慧宇科技有限公司 Long service life's steel dam gate based on thing networking
CN110219286A (en) * 2019-06-14 2019-09-10 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） A kind of light-weighted corrugated plating gate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758796C (en) * 1940-06-08 1952-12-15 Krupp Fried Grusonwerk Ag Flap weir
AT312509B (en) * 1970-05-19 1974-01-10 Waagner Biro Ag poetry
US4455106A (en) * 1981-10-23 1984-06-19 Johnson William M Flash gate board
NL8702118A (en) * 1987-09-04 1989-04-03 Waterschap Kromme Rijn Adjustable water weir - has hatch tilting on horizontal axis below centre and coupled to upstream floats with counterweights

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT151492B (en) * 1934-03-20 1937-11-10 Maschf Augsburg Nuernberg Ag Weir flap.
US2051359A (en) * 1934-10-03 1936-08-18 Jr James L Adams Safety guard gate
US2759697A (en) * 1950-10-20 1956-08-21 Fred H Camphausen Hydraulic control for butterfly valves
US4103497A (en) * 1976-04-28 1978-08-01 Pirelli Furlanis - Applicazioni Idrauliche Agricole Gomma S.P.A. Manoeuvrable weir
JPS5715712A (en) * 1980-06-30 1982-01-27 Mitsubishi Heavy Ind Ltd Sluice gate tilting toward upstream side

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758796C (en) * 1940-06-08 1952-12-15 Krupp Fried Grusonwerk Ag Flap weir
AT312509B (en) * 1970-05-19 1974-01-10 Waagner Biro Ag poetry
US4455106A (en) * 1981-10-23 1984-06-19 Johnson William M Flash gate board
NL8702118A (en) * 1987-09-04 1989-04-03 Waterschap Kromme Rijn Adjustable water weir - has hatch tilting on horizontal axis below centre and coupled to upstream floats with counterweights

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294079A (en) * 1994-10-15 1996-04-17 Cyril Anthony Timms Adjustable counterbalanced self-regulatory tilting weir.
GB2294079B (en) * 1994-10-15 1998-02-04 Cyril Anthony Timms Adjustable, self-regulating tilting weir
WO2009082882A1 (en) * 2007-12-26 2009-07-09 Defu Li Gravity-operated opening and closing gate controlled by water level
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

Also Published As

Publication number Publication date
ATE111543T1 (en) 1994-09-15
AU5850990A (en) 1991-01-08
EP0438549B1 (en) 1994-09-14
NL8901563A (en) 1991-01-16
DE69012543T2 (en) 1995-04-13
US5171102A (en) 1992-12-15
EP0438549A1 (en) 1991-07-31
DE69012543D1 (en) 1994-10-20

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