KR20170067594A - Easy maintenance type hydraulic pulling up floodgate - Google Patents

Easy maintenance type hydraulic pulling up floodgate Download PDF

Info

Publication number
KR20170067594A
KR20170067594A KR1020150174443A KR20150174443A KR20170067594A KR 20170067594 A KR20170067594 A KR 20170067594A KR 1020150174443 A KR1020150174443 A KR 1020150174443A KR 20150174443 A KR20150174443 A KR 20150174443A KR 20170067594 A KR20170067594 A KR 20170067594A
Authority
KR
South Korea
Prior art keywords
door frame
cylinder
door
hydraulic cylinder
guide
Prior art date
Application number
KR1020150174443A
Other languages
Korean (ko)
Other versions
KR101788624B1 (en
Inventor
신광철
Original Assignee
케이에스엠기술 주식회사
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 케이에스엠기술 주식회사 filed Critical 케이에스엠기술 주식회사
Priority to KR1020150174443A priority Critical patent/KR101788624B1/en
Publication of KR20170067594A publication Critical patent/KR20170067594A/en
Application granted granted Critical
Publication of KR101788624B1 publication Critical patent/KR101788624B1/en

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/26Vertical-lift gates
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/26Vertical-lift gates
    • E02B7/36Elevating mechanisms for vertical-lift gates
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/52Equipment preventing vibration of gates
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/54Sealings 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 present invention relates to a hydraulically operated lifting sluice using a hydraulic cylinder, wherein the hydraulic cylinder is positioned at the upper end of the drainage canal, thereby separating the hydraulic system from the river and facilitating maintenance.
In the present invention, a door frame to which a side of a door is inserted so as to be moved upward and downward is provided so as to move the door to the upper side of the opening and closing clearance, and a cylinder space in which a hydraulic cylinder is installed vertically is formed in the door frame, And the upper portion of the cylinder guide is coupled to a fixing bracket, the upper portion of the door frame is connected to the fixing bracket by a chain, and the oil of the hydraulic device is collected on the upper side of the opening and closing clearance An oil pan is installed and a fixing device for fixing the door open to the oil pan is provided and an opening degree detecting device for detecting the opening degree of the door is provided on the upper side of the door frame.

Description

{Easy maintenance type hydraulic pulling up floodgate}

The present invention relates to a hydraulic lifting gate using a hydraulic cylinder, which is convenient for maintenance, and a hydraulic cylinder is disposed at the upper end of a drainage clearance, thereby separating the hydraulic system from a river and simplifying maintenance.

Mechanical lifting of the lifting gate requires a mechanical type using a motor and a hydraulic type using a hydraulic cylinder. However, a mechanical type should be provided with a pier, a bridge, a slab, and a rail structure for installing a winch on the top of a watercraft, It is necessary to install slabs and pedestrian bridges, which are concrete structures, and foreign materials are caught in piers and slabs during floods, which interfere with water flow, cause scour and settlement problems, There is a problem that motor-driven lifting device is necessary. Hydraulic type is structurally simpler than mechanical type because it uses hydraulic cylinder, but hydraulic cylinder is installed in slab like mechanical type, built in door frame, , The method of installing the slab has the same problem as that of the mechanical type And the method of installing the hydraulic cylinder in the door frame or the hydromassage is difficult to repair due to failure of the hydraulic system and the problem of water pollution due to oil leakage can not be solved.

In this type of inflatable lifting device, the hydraulic cylinder must extend and straighten in the door frame. However, when the door lift is performed in a tilted state, the frictional resistance to the inside of the cylinder (load bearing, piston, packing) The hydraulic cylinder is inserted and attached to the door frame or the water gate and is installed in the drainage clearance. Therefore, the hydraulic cylinder is inevitably in contact with water, and the water quality is contaminated by the oil leakage. It is very difficult to repair or replace the cylinder and the door in the door frame by disassembling and removing the cylinder or the door, or by using the heavy equipment to lift the door and the cylinder as a whole.

Korea Utility Model Registration 20-0273657 (Registered on April 16, 2002) Korea Utility Model Registration 20-0301089 (Registered on Mar. 3, 2003)

The present invention relates to a hydraulic lifting gate which is difficult to replace or repair because it is installed in a state where the hydraulic cylinder can be brought into contact with water or is fitted inside the door frame or water gate, A hydraulic cylinder is provided on the upper side of the drainage clearance and a straight guide is provided by the cylinder guide so that even if the oil leaks, it flows into the river Do not lift.

In the present invention, a door frame to which a side of a door is inserted so as to be moved upward and downward is provided so as to move the door to the upper side of the opening and closing clearance, and a cylinder space in which a hydraulic cylinder is installed vertically is formed in the door frame, And the upper portion of the cylinder guide is coupled to a fixing bracket, the upper portion of the door frame is connected to the fixing bracket by a chain, and the oil of the hydraulic device is collected on the upper side of the opening and closing clearance An oil pan is installed in the oil pan, and a fixing device for fixing the door with the door open is provided. An opening degree detecting device for detecting the degree of opening of the door is provided on the upper side of the door frame. Shaped guide member and is guided outwardly It allows smooth movement perpendicular to install multiple.

In the door of the present invention, an emergency ring is provided at the center so that the door can be raised when the hydraulic device fails. A sedimentation prevention zone for preventing accumulation of foreign matter is provided at the lower left and right sides of the door frame.

In the present invention, maintenance of a hydraulic cylinder is performed simply by lifting a hydrologic gate with a hydraulic device, installing a hydraulic cylinder on the upper side of a drainage clearance, installing an oil pan on the upper side of a drainage clearance to prevent leakage oil from flowing into a river And the cylinder guide is inserted into the door frame for vertical movement of the hydraulic cylinder, so that the hydraulic cylinder is not operated while being bent.

The hydraulic cylinder of the present invention can be exposed to the space in a state where it is installed in the door frame, so that the maintenance can be easily performed, and even if an abnormality occurs in the hydraulic device using the fixing device installed in the oil pan, The synchronizing operation of the left and right hydraulic cylinders is performed by using the opening degree measuring device and the accumulation accumulation is prevented from accumulating on the inside of the door frame by providing a sedimentation reservoir on the floor.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Figure 2 is a cross-
Fig. 3 is a cross-
Fig. 4 is an enlarged cross-sectional view taken along the line A in Fig. 3 of the present invention
5 is a perspective view
6 is an exploded perspective view
Figure 7 is a partial perspective view of the roller movement of the present invention.
8 is a partial front view showing the roller moving state of the present invention
Fig. 9 is a perspective view of the cover-
10 is a side view of the deposition state of the present invention
Fig. 11 is a cross-sectional view

The present invention relates to a hydraulic lifting sluice for lifting a door using a hydraulic cylinder, wherein a door is installed so as to open and close the opening and closing clearance by moving up and down in a state of being fitted to the door frame, The upper portion of the door frame is connected to the upper portion of the stationary bracket by a chain, and the door is lowered according to the operation of the hydraulic cylinder to block the opening and closing clearance The opening or opening of the door will open the door.

The present invention is characterized in that a hydraulic cylinder installed vertically to a door frame vertically moves the fixing bracket upward and downward while a stationary bracket is fixed to the door frame and a cylinder guide installed on the fixing bracket is fitted to the door frame so that the hydraulic cylinder can move vertically, .

Since the hydraulic cylinder of the present invention is installed inside the door frame at the top of the opening and closing clearance pipe, maintenance can be performed by simply exposing the hydraulic cylinder, and when the oil flowing from the hydraulic device to the hydraulic cylinder is leaked to the upper side of the opening- The oil pan is prevented from being contaminated by the oil, and a separate fixing device is installed in the oil pan so as to keep the door stationary even if an abnormality occurs in the hydraulic system in a state where the door is raised, The device fixes the door by projecting the fixing pin by a hydraulic cylinder.

The hydraulic cylinder and the cylinder guide of the present invention are fixed to the lower side of the fixing bracket in the vertical direction. The cylinder guide is formed of a rectangular tube. The cylinder guide is provided with a guide roller which is in close contact with the guide space of the door frame, At the same time, the hydraulic cylinder is expanded and contracted in the vertical state, so that the fixing bracket is vertically moved.

The door frame of the present invention is provided with an edge for moving the packing on the front side when the door is closed and a deposition chamber for preventing accumulation of sediment on the lower side of the door frame is provided. Accurate detection of door openings allows both hydraulic cylinders to be operated synchronously, and the opening status of the door can be remotely checked.

According to the present invention, a stationary bracket is vertically moved by a cylinder guide while a stationary bracket is vertically moved according to an operation of a hydraulic cylinder, and a door fixed to the stationary bracket by a chain is moved up and down by a stationary bracket, The emergency collar, which is installed through the fixing bracket, opens the door manually when the hydraulic device fails.

In the present invention, an oil pan is installed on the upper side of the opening and closing clearance pipe so as not to flow into the river when the oil delivered to the hydraulic cylinder leaks, and the oil pan is provided with a fixing device, So that the door does not close unless the door is released.

The present invention assures vertical movement of the hydraulic cylinder by means of the cylinder guide, and the hydraulic cylinder is installed in such a manner that it is exposed at the top of the opening and closing clearance, so there is an advantage of easy maintenance and even if oil is leaked, And accumulation of sediment is prevented by the sedimentation station provided on the left and right side of the door frame, thereby maintaining the exponential capacity.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The door frame 10 with the left and right side portions sandwiched by the door frame 20 is moved up and down using a pair of hydraulic cylinders 30 provided on the right and left sides of the door frame 10. In the present invention, Only the hydraulic cylinder 30 in the opposite position will be described.

As shown in FIG. 2, the door frame 20 of the present invention is constructed such that the door frame 10 is inserted and moved on the side facing each other, and a guide space 21 is formed on the outside of the door frame 20, The door frame 20 of the present invention is installed so as to protrude above the opening and closing clearance 40 and the hydraulic cylinder 30 is installed above the opening and closing clearance 40. [

A hydraulic cylinder 30 is installed in the cylinder space 22 formed in the door frame 20 and the cylinder space 22 covers the cover 23 with the hydraulic cylinder 30 mounted thereon. Is fixed to the fixing bracket (50).

The guide space 21 formed in the door frame 20 is formed in the shape of a rectangular barrel. A cylinder guide 31 in the shape of a rectangular tube is fitted in the guide space 21, The guide roller 32 is provided so as to be protruded so that the guide roller 32 is in close contact with the inner wall of the guide space 21. The upper side of the cylinder guide 31 is fixed to the fixing bracket 50.

The hydraulic cylinder 30 provided in the cylinder space 22 is operated to move the fixing bracket 50 up and down so that the cylinder guide 31 fixed to the fixing bracket 50 is moved in the guide space 21 The hydraulic cylinder 30 moves only in the vertical direction, and does not move in the inclined state.

The upper and lower sides of the door frame 10 are fixed to the fixing bracket 50 by the chain 11 so that the door frame 10 can be opened and closed by moving the fixing bracket 50 with the hydraulic cylinder 30.

The oil pan 60 is installed on the upper side of the opening and closing structure 40 of the present invention so that the oil supplied from the hydraulic device to the hydraulic cylinder 30 does not flow into the river, The fixing pin is moved forward and backward by the hydraulic cylinder 61 and the fixing pin 62 is fixed to the fixing hole 62 formed in the door frame 10 through the fixing hole 63, (12) so that the door frame (10) is fixed by the fixing pin (62).

The door frame 20 of the present invention is provided with the accumulation chamber 70 at the lower end so that watertightness is achieved while moving toward the side where the packing 14 is brought into close contact with the edge 13 by the edge 13 when the door frame 10 is closed, (15) provided on the bottom surface of the tank (10) and is inclined rearward, thereby preventing accumulation of sediments.

In the present invention, the chain 11 or the wire or round bar for fixing the door 10 is fixed to the upper holder 52 through the elongated groove 51 formed in the fixing bracket 50, and the holder 52 A lower portion of the door bracket 50 is provided with a roller 53 moving on the upper side of the fixing bracket 50 to move the door frame 10 while moving up and down, So that they can be buffered when they are brought into close contact with each other.

The present invention can fix the door frame 10 by using the connecting round bar 11a rather than the chain 11. When the connecting round bar 11a is used, The cushion spring 16 is inserted into the connecting round bar 11a and then the upper and lower ends of the cushion spring 16 are inserted into the connecting round bar 11a. As the connecting rod 11a continues to push the door frame 10, The shock absorbing spring 16 is buffered after the door frame 10 is brought into contact with the floor by inserting the detent nut 17 and the release preventing nut 18 to the side of the door frame 10 to prevent the door frame 10 from being damaged.

According to the present invention having such a configuration, the hydraulic pressure supplied to the hydraulic cylinder 30 from the hydraulic pressure apparatus is interrupted to move the door 10 up and down. When the hydraulic cylinder 30 is extended, At this time, the hydraulic cylinder 30 is moved in the vertical direction while the cylinder guide 31 moves along the guide space 21, so that the fixing bracket 50 moves in the vertical direction exactly And the movement to the inclined state is prevented.

The vertical movement of the hydraulic cylinder 30 is achieved by the installation of the cylinder guide 31 so that the cylinder guide 31 can be smoothly moved by the installation of the guide roller 32. [

The hydraulic cylinder 30 for moving the fixing bracket 50 up and down is installed in the cover 23 in the cylinder space 22 of the door frame 20 from above the opening and closing clearance 40, The hydraulic cylinder 30 can be opened and the maintenance can be performed. In the present invention, the maintenance of the hydraulic cylinder 30 can be performed easily .

The oil supplied to the hydraulic cylinder 30 of the present invention leaks from the connection portion. Therefore, in the present invention, the oil pan 60 is installed to prevent the oil pan 60 from mixing with the river when the oil leaks, Prevent contamination.

The stationary bracket 50 is fixed to the stationary bracket 50 by using a chain 11 or a wire or a round bar and the stationary bracket 10 is mounted on the door frame 20 in accordance with the upward and downward movement of the stationary bracket 50 And the chain 11 or the wire or round bar for fixing the door 10 is fixed to the holder 52 through the elongated groove 51 formed in the fixing bracket 50. The holder 52 is fixed The roller 53 can be moved while being supported by the roller 53 at the upper portion of the bracket 50 so that the door 10 is moved up and down or the edge 13 to move back and forth. Absorbed.

When the door frame 10 is connected with the chain 11 or a wire, the front and rear flows can be compensated even if the door frame 10 is directly connected to the stationary bracket 50.

In the present invention, in the case of fixing the door frame 10 using the connecting round bar 11a rather than the chain 11, when the door frame 10 is closed by its own weight, the connecting round bar 11a continues to move the door frame 10 After the door frame 10 touches the floor so as not to push it, the buffer spring 16 is buffered to prevent the door frame 10 from being damaged.

The door 10 of the present invention is provided with an emergency ring 80 so that the door 10 can be forcibly opened even if an abnormality occurs in the hydraulic system. A fixing device is installed and the fixing device moves the fixing pin 62 back and forth by the hydraulic cylinder 61 and the fixing pin 62 is inserted into the fixing hole 12 of the door frame 10 through the fixing hole 63 So that the door frame 10 is fixed by the fixing pin 62. This prevents the door frame 10 from being closed when an abnormality occurs in the hydraulic unit when the door frame 10 is opened.

That is, in the hydraulic cylinder 61 constituting the fixing device of the present invention, the fixing pin 62 keeps the door frame 10 fixed even when the fixing pin 62 is advanced and an abnormality of the hydraulic device is detected The door frame 10 is not closed unless the hydraulic cylinder 30 is operated to move the fixing pin 62 backward.

While the normal hydraulic pressure is operating, the door 10 can be raised and lowered by using the hydraulic cylinder 30 after releasing the fixing pin 62 of the fixing device.

The door frame 20 of the present invention is provided with a known opening degree detecting device for measuring the degree of opening and closing of the door frame so as to detect the opening state of the door frame 10 so that both hydraulic cylinders 30 can be operated synchronously Remote control can be performed by transmitting detection value to a remote place by using a communication line.

In addition, in the door frame 20 of the present invention, a sedimentation stopper 70 is provided at the lower end to prevent accumulation of deposits due to water flow.

10: Doorway 11: Chain
20: door frame 21: guide space
22: cylinder space 23: cover
30: Hydraulic cylinder 31: Cylinder guide
32: guide roller 40: opening / closing clearance
50: Fixing bracket 60: Oil pan
70: Deposition zone 80: Emergency ring

Claims (6)

The door frame 20 is provided with a door frame 10 to be moved upward from the opening and closing clearance 40,
A cylinder space 22 is formed at one side of the door frame 20 so that a hydraulic cylinder 30 is vertically installed at an upper side of the opening and closing clearance 40. A cylinder guide 31 is provided outside the door frame 20, A guide space 21 is formed which moves up and down while being sandwiched therebetween,
The upper side of the hydraulic cylinder 30 and the upper side of the cylinder guide 31 are coupled to the fixing bracket 50,
The upper side of the door frame 10 is connected to the lower side of the fixing bracket 50 by a chain 11,
And an oil pan (60) for collecting oil leaking from the upper side of the opening / closing clearance (40) in a form crossing the door frame (10) is provided.
2. The door structure according to claim 1, wherein the cylinder space (22) formed in the door frame (20) is provided with a hydraulic cylinder (30) The hydraulic lifting sluice is convenient to maintain. The cylinder head according to claim 1, wherein the cylinder guide (31) has a rectangular tube shape and a guide roller (32) protrudes from the outside. The cylinder guide (31) So that the guide roller (32) moves up and down in tight contact with the inner wall of the guide space (21). The oil pan (60) according to claim 1, characterized in that a fixing pin (62) advancing to the hydraulic cylinder (61) is fixed to the fixing hole (12) of the door frame (10) Hydraulic lifting sluice for easy maintenance. A chain (11) or wire or round bar for fixing the door frame (10) to a stationary bracket (50) is fixed to a holder (52) through an elongated groove (51) of a stationary bracket (50) (52) is supported by the roller (53) on the upper side of the stationary bracket (50) and flows according to the back and forth movement of the door frame (10). 2. The method of claim 1, wherein when the door frame 10 is connected to the connecting round bar 11a without connecting the door frame 10 to the chain 11, the buffer spring 16 is inserted into the connecting round bar 11a inside the door frame 10 The detent nut 17 for preventing the connecting round bar 11a from separating upward from the door frame 10 to the upper and lower sides of the buffer spring 16 and the detachment preventing nut 18 being inserted into the lower portion of the connecting round bar 11a Hydraulic lifting sluice which is easy to maintain and maintenance.
KR1020150174443A 2015-12-08 2015-12-08 Easy maintenance type hydraulic pulling up floodgate KR101788624B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150174443A KR101788624B1 (en) 2015-12-08 2015-12-08 Easy maintenance type hydraulic pulling up floodgate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150174443A KR101788624B1 (en) 2015-12-08 2015-12-08 Easy maintenance type hydraulic pulling up floodgate

Publications (2)

Publication Number Publication Date
KR20170067594A true KR20170067594A (en) 2017-06-16
KR101788624B1 KR101788624B1 (en) 2017-11-20

Family

ID=59278607

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150174443A KR101788624B1 (en) 2015-12-08 2015-12-08 Easy maintenance type hydraulic pulling up floodgate

Country Status (1)

Country Link
KR (1) KR101788624B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102006170B1 (en) * 2018-09-17 2019-08-01 (주)현진엔지니어링 Recovery type sluice gate for prevent the damage of gate leaf caused by obstacles
KR102241211B1 (en) * 2020-12-18 2021-04-16 (주)엠닉스 Screw type water gate
KR102567608B1 (en) * 2023-04-11 2023-08-17 주식회사 삼성엔비코 Self-loading floodgates system
KR102570730B1 (en) * 2023-01-04 2023-08-28 우일산업 주식회사 Doorframe for floodgate and floodgate assembly comprising the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101886830B1 (en) 2018-01-16 2018-08-09 일성보산업(주) Pulling up floodgate of hydraulic type

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001295249A (en) * 2000-04-11 2001-10-26 Nkk Corp Oil pan, winding device, and sluice
KR200286817Y1 (en) * 2002-05-09 2002-08-24 만 환 최 open and shut equipment for sluice
KR200442618Y1 (en) * 2008-02-18 2008-11-25 (주) 대유 Automatic sluice gate using buoyancy
KR100909485B1 (en) * 2009-03-11 2009-07-28 김상현 Hydrostatic floodgate winch
KR101010045B1 (en) * 2010-05-19 2011-01-21 경신가동보(주) Warer-gate apparatus of hydraulic elevater type
KR101049099B1 (en) * 2011-03-25 2011-07-15 김상국 Pump mounted gate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102006170B1 (en) * 2018-09-17 2019-08-01 (주)현진엔지니어링 Recovery type sluice gate for prevent the damage of gate leaf caused by obstacles
KR102241211B1 (en) * 2020-12-18 2021-04-16 (주)엠닉스 Screw type water gate
KR102570730B1 (en) * 2023-01-04 2023-08-28 우일산업 주식회사 Doorframe for floodgate and floodgate assembly comprising the same
KR102567608B1 (en) * 2023-04-11 2023-08-17 주식회사 삼성엔비코 Self-loading floodgates system

Also Published As

Publication number Publication date
KR101788624B1 (en) 2017-11-20

Similar Documents

Publication Publication Date Title
KR101788624B1 (en) Easy maintenance type hydraulic pulling up floodgate
KR101577977B1 (en) Floodgate using hydraulic cylinder
KR101658067B1 (en) Flood pretect wall with easy maintenance
NL8200519A (en) DEVICE FOR PROVIDING ACCESS TO UNDERGROUND PIPES.
KR200464944Y1 (en) Up and down type movable weir
KR20130096043A (en) Gate double-row screen device
KR20160013364A (en) Pulling up type floodgate device
KR101765273B1 (en) Opening and shutting unit for hydraulic-type floodgate
KR101626007B1 (en) Easily detachable pump for floodgate
KR101788194B1 (en) water gate
KR100755033B1 (en) The apparatus for removing wastes
KR101702437B1 (en) Pulling up floodgate having monolithic structure of cylinder
KR20190085749A (en) Hydraulic Movable Weir
CN213805750U (en) Integrated intercepting well
KR101763350B1 (en) Seal apparatus of floodgate
KR101681132B1 (en) A process of replacement of a sluice gate using A blocking device in an intake tower
KR20160013363A (en) Doorframe plate of pulling up type floodgate device
CN113718719B (en) Electric servo gate
KR20160135553A (en) Radial pin rack type movable water gate
KR101587203B1 (en) Pulling up floodgate
KR101633300B1 (en) A Flushing Gate Having a Open and Close Structure of Moving along a Straight Line
KR101637455B1 (en) A device for carrying guide of the pipe
CN215949803U (en) Special pump of simple and convenient integration pump floodgate of dismouting
KR102121767B1 (en) a movable weir for easily maintenance
KR20120139379A (en) Pressing apparatus for separable water pump provided with leakage prevention structure

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant