专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2004346492A Water gate door 审中-公开
公开(公告)号：JP2004346492A
公开(公告)日：2004-12-09
申请号：JP2003141310
申请日：2003-05-20
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： KIKUCHI AIKO , SASAKI AKIFUMI , OKUBO SEIJI , MAEKAWA SHIN
IPC分类号： E02B7/40 , E02B7/54 , F16J15/16
摘要： PROBLEM TO BE SOLVED: To improve water cut-off performance by a simple configuration without complicating a structure in a water gate door.
SOLUTION: An upper step door 14a and a lower step door 14b which approach mutually and leave from each other freely along the direction crossing a pipe end face are provided for an opening 13 provided on the pipe end face of a penstock 11 to open and close the opening 13. A pipe end face seal member 21 for cutting off water by slide-contact of inner faces of the upper step door 14a and the lower step door 14b is provided along a peripheral fringe of the opening 13. A door matching face seal member 23 for cutting off water by close adhesion to the lower step door 14b is provided on a door matching face 22a of the upper step door 14a. A hard plate 31 preventing a side end part 23a from protruding onto a door matching face 22b side of the lower step door 14b is incorporated in a flange part 26 of the door matching face seal member 23.
COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2000205262A SLIDING SLEEVE BEARING 失效
公开(公告)号：JP2000205262A
公开(公告)日：2000-07-25
申请号：JP18752599
申请日：1999-07-01
申请人： MITSUBISHI HEAVY IND LTD
发明人： OGUSHI SHIGETO , MATSUI AKIHIKO , SASAKI AKIFUMI
IPC分类号： F16C17/02 , F16C32/06
摘要： PROBLEM TO BE SOLVED: To simplify the construction, reduce the weight, make its drive device in small size, prevent a sliding surface from making single-sided contacting and reduce the sliding resistance by using sliding sleeve bearings in a parallel guide mechanism of a sluice, etc. SOLUTION: This sliding sleeve bearing to be installed between the plane portion 2' of a stationary surface member 2 and a moving surface member 1 to move in a certain direction parallel with the plane portion 2' has a convex cylindrical pad 6 and concave cylindrical pad 7 contacting slidably in the cylindrical axial direction and circumferential direction so that a sliding surface is formed, wherein the pad 6 is attached to the moving surface member 1 with the cylindrical axis oriented in the mentioned moving direction while the other pad 7 is attached to the plane portion of the stationary surface member 2.

3. 发明专利

JPH06123111A SLUICE DOOR 失效
公开(公告)号：JPH06123111A
公开(公告)日：1994-05-06
申请号：JP27304692
申请日：1992-10-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： KAWAKAMI YOSHIMICHI , ANDO KAZUHIKO , SASAKI AKIFUMI , KIKUCHI AIKO
IPC分类号： E02B7/54
摘要： PURPOSE:To provide a sluice door which can prevent the damage of a watertight rubber, cut off a water flow even in a high pressure dam, dispense with the opening and closing operation of a back pressure pipe, and prevent the heating and dissolution of the watertight rubber resulting from vibration. CONSTITUTION:In the case of cutting off a dam flow, back pressure (water pressure) generated by utilizing water reserved in a dam is first added to a watertight rubber 4 through a back pressure pipe 3 to protrude the watertight rubber 4. Next a door body 1 is moved in an arrow direction (downward) as central projections 4a on both the sides 4' of the watertight rubber 4 are crushed by both the sides of the door body 1. When the tips of both the sides of the door body 1 reach the tips (lower ends) of both the sides of the watertight rubber 4, the central projection 4a of the lower corner parts 4' of the watertight rubber 4 is crushed by both the sides of the concave notched part 1a of the door body 1. Next the central projection 4a of the tip 4' of the watertight rubber 4 is gradually crushed by the concave notched part la of the door body 1 to smoothly close a discharging port. A roller or a slide plate is provided on the side of the watertight rubber at the tip of the door body 1, or the tip of the watertight rubber 4 may be formed into a circular arc-shape.

4. 发明专利

JP2000227113A SLIDING DEVICE 失效
公开(公告)号：JP2000227113A
公开(公告)日：2000-08-15
申请号：JP2994999
申请日：1999-02-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： OGUSHI SHIGETO , MATSUI AKIHIKO , SASAKI AKIFUMI
IPC分类号： E02B7/28 , F16C29/02 , F16C32/06
摘要： PROBLEM TO BE SOLVED: To move a traveling member without entailing any local stress concentration on a sliding part. SOLUTION: This sliding device is provided with an elastic body 14, whose base end side is locked to an on-off member 11 traveling along a stationary member 12, and having four divided parts 14a at the tip side, and four sliding materials 16 being installed each in these divided parts 14a of the elastic body 14 and sliding on the stationary member 12 in time of their traveling, respectively.

5. 发明专利

JP2000054351A OVERFLOW TYPE GATE 失效
公开(公告)号：JP2000054351A
公开(公告)日：2000-02-22
申请号：JP22028698
申请日：1998-08-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： WATANABE NORIYOSHI , KIKUCHI AIKO , SASAKI AKIFUMI
IPC分类号： E02B7/20 , E02B7/40
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of vibration of overflow water film and low frequency noise induced by the vibration without adopting a member for blocking the flow of the overflow water. SOLUTION: This is an overflow type gate 11 with which an overflow water film 14 is formed from an overflow current and dropped from an upper end portion 13 of a gate 12 to be opened or closed. In this case, water 21 is jetted toward an overflow water film 14 to be dropped and the overflow water film 14 is subdivided in the width direction of the gate 12 thereby prohibiting the formation of a large area of the overflow water film 14, therefore the vibration of overflow film and the occurrence of low frequency noise induced by the overflow film can be prevented without using members for blocking the flow of the overflow water.

6. 发明专利

JPH093862A SHELL GATE WITH DRUM 失效
公开(公告)号：JPH093862A
公开(公告)日：1997-01-07
申请号：JP15171495
申请日：1995-06-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： SASAKI AKIFUMI , HIRANO HARUHIKO , KANEKO TORU
IPC分类号： E02B7/42
摘要： PURPOSE: To prevent low frequency oscillations generated by overflow water veins and prevent noises generated by dropping of the overflow water into the water level and further, prevent extinction of fry or the like resulting from the impulses of dropping water of the overflow and make it possible to use the gate in both cases of the water pressure acting from the upstream or the downstream. CONSTITUTION: A drum 2 for overflow used as a child gate rotatably installed at the upper part of a shell is rotated to cope with the variation of the water level and adjust the height of the shell gate with the drum. The overflow water from the drum is led along the rear face of the drum for overflow and the opposite face to the water reservoir side of the shell 1 to prevent the overflow water from freely dropping to the downstream water level.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式