Watergate

Abstract

a flap gate coupled to the hinge part and rotating up and down about the hinge part, the flap gate rotating downward to overlap with the side wall of the water storage part to close the outlet and rotating upward to open the outlet; a fan-shaped pullstring pulley coupled to an upward surface of the flap gate when the flap gate is horizontal; a pullstring lifting means installed on the water storage part, and a pullstring having one end connected to the pullstring lifting means and the other end coupled to the flap gate, the pullstring being partly wound around the outer periphery of the pullstring pulley that moves to close the outlet by converting horizontal movement by the fan-shaped pullstring pulley attached to the flap gate into rotational movement.

Description

Technical Field

[0001] The present invention relates to a water gate, and more particularly to an opening and closing device that is opened and closed by rotating around a hinge axis.

Background Art

[0002] As existing water gates, there are those that open and close while sliding. In the case of such water gates, a structure for sliding is attached.

[0003] However, such a conventional sliding-type water gate has problems such as difficulty in sealing and occurrence of failures or water leakage such as foreign substances sticking to the sliding structure and the gate.

[0004] Also, there is a conventional flap gate type water gate. In the case of such a water gate, a complicated structure or a hydraulic device is required for opening and closing the flap gate.

[0005] However, such an existing flap gate opening and closing method requires a complicated structure and has disadvantages such as the risk of oil outflow and failure when using hydraulic pressure for driving.

[0006] Also, the existing sedimentation tank drainage valve of a water purification plant has a sliding structure, and since there is no flow of slurry, there is a disadvantage that clogging occurs due to sand or slurry sticking to the bottom of the water storage tank.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0008] The present invention was devised to solve the problems of such prior art. The present invention is a device that can break by imparting fluidity to sand or slurry precipitated when the floodgate is opened, smooth the removal of the slurry, and facilitate discharge. It does not require a separate crushing device previously used in a sedimentation basin or the like. It has a simple structure, uses water pressure to provide excellent sealing force without leakage, so there is no waste of resources, can save energy, and has the purpose of providing a device that is easy to maintain and manage.

Means for Solving the Problems

[0009] The floodgate according to the present invention for achieving the above object is a device that opens and closes the discharge port formed in the water storage part where water is stored to ensure the drainage and water stoppage of the water storage part. It includes a hinge part coupled above the discharge port among the side walls of the water storage part, and a flap gate coupled to the hinge part and rotating up and down around the hinge part. When the flap gate rotates downward and overlaps with the side wall of the water storage part, it closes the discharge port, and when it rotates upward, the discharge port is opened. It also includes a fan-shaped pulling string pulley attached to the flap gate, and a vertical lifting means using the fan-shaped pulling string pulley to convert horizontal movement into rotational movement to open and close the discharge port. The pulling string pulley is coupled to the flap gate. The pulling string lifting means is installed above the water storage part, and one end of the pulling string is connected to the pulling string lifting means and the other end is connected to the flap gate. A part of the pulling string is wound around the outer peripheral surface of the pulling string pulley so that the flap gate moves to open and close the discharge port.

[0010] Also, it is preferable to use a wire for the pulling string or a chain for facilities with a deep water depth and heavy load.

Effects of the Invention

[0011] As detailed above, according to the water gate according to the present invention, due to the action of the water pressure of the water in the water storage part, there is an advantage that there is no water leakage with a reliable sealing force compared to the water gate of the conventional sliding structure, so there is no waste of resources, energy can be saved, and there is an advantage that the problem caused by foreign matter sticking to the structure of the sliding structure is solved.

[0012] In addition, since the water gate according to the present invention does not require a complicated structure such as a hydraulic device, there is an advantage that the risk of failure is small.

[0013] In addition, in the water gate according to the present invention, since the flap gate is opened while scraping the sand or slurry accumulated at the lower part of the water storage part inside, it is possible to flow and generate cracks while pushing the sand or slurry precipitated in the water storage part to discharge the sand or slurry well, and also to discharge the water well, so there is an advantage that a separate crushing device is not required.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0015] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the attached drawings.

[0016] FIG. 1 and FIG. 2 are configuration diagrams showing the water gate according to the present invention. FIG. 1 shows a state where the discharge port 2 is closed, and FIG. 2 shows a state where the discharge port 2 is opened by the flap gate 20 of the water gate according to the present invention.

[0017] The water gate according to the present invention is composed of a hinge part 10, a flap gate 20, a towline pulley 30, a towline 40, and a towline lifting means 50.

[0018] The water storage part means a structure having a space into which water can be put, including sedimentation basins, filtration basins, discharge water basins, etc. in a water purification plant, and can be a concept including all structures such as dams, water channels, hydroponics, and fields that confine water and discharge it as necessary.

[0019] The side wall 1 of the water storage part is a vertically formed wall body with a discharge port 2 formed at its lower part so that water can escape. The discharge port 2 serves as the inlet of a drainage channel 3 which is a passage for water to escape from the water storage part.

[0020] The hinge part 10 is an axis for the rotation of the flap gate 20, and the hinge part 10 is fixedly installed at a part of the side wall 1 of the water storage part above the discharge port 2.

[0021] The flap gate 20 is coupled with the hinge part 10 and rotated up and down around the hinge part 10. When it rotates downward and overlaps with the side wall 1 of the water storage part, the discharge port 2 is closed, and when it rotates upward, the discharge port 2 is opened.

[0022] The pull string pulley 30 is a fan-shaped structure coupled to the surface on the opposite side of the surface facing the discharge port 2 with respect to the state where the flap gate 20 blocks the discharge port 2 among the two surfaces of the flap gate 20. A guide groove or a chain gear for inserting the pull string 40 into the outer peripheral surface of the pull string pulley 30 to guide the movement of the pull string 40 is formed.

[0023] As shown in FIGS. 1 and 2, when the flap gate 20 is in the closed state, the arc part of the fan-shaped pull string pulley 30 is configured to face downward, so that when the flap gate 20 is in the closed state, a part of the pull string 40 is inserted into the guide groove of the pull string pulley 30 and the lower end part of the pull string 40 is wound around the outer peripheral surface of the pull string pulley 30.

[0024] The towing rope 40 usually adopts a wire. However, when the water level is deep, the strength of the wire may be insufficient, so in this case, a chain or the like may be selected. When the towing rope 40 is a chain, the towing rope pulley 30 is composed of a chain gear.

[0025] As the towing rope lifting means 50, an air cylinder or an actuator used in existing equipment can be used, and a winch can be used in some cases.

[0026] The operation of the water gate according to the present invention configured as described above is as follows.

[0027] Figure 1 shows a state where the flap gate 20 is rotated downward and overlaps with the side wall 1 of the water storage part, and the discharge port 2 is closed by the flap gate 20. At this time, the pressure of the water contained in the water storage part pushes the flap gate 20, so that the sealing force of the flap gate 20 is greatly improved and a reliable sealing force is generated.

[0028] When it rains or water flows in with the discharge port 2 closed in this way, the water level in the water storage part rises and it becomes necessary to discharge the water, or it becomes necessary to send the slurry accumulated in the water storage part through the drainage channel 3.

[0029] In this case, as shown in Figure 2, when the towing rope lifting means 50 is operated and the towing rope 40 is pulled upward, the towing rope 40 will lift the towing rope pulley 30 upward, and the towing rope pulley 30 and the flap gate 20 integrally coupled thereto will rotate upward.

[0030] As a result, the discharge port 2 blocked by the flap gate 20 will be opened, and the water in the water storage part will be discharged through the discharge port 2 and the drainage channel 3.

[0031] However, when the flap gate 20 is lifted, it also serves to lift the sand and sludge deposited at the bottom of the water storage section and create a gap through which water can pass while giving it fluidity, so that sediment and water can be discharged well.

[0032] As described above, the present invention has been described only for preferred specific examples, but it is obvious to those skilled in the art that various modifications and corrections within the technical idea scope of the present invention based on the above specific examples are possible, and such modifications and corrections naturally belong to the appended claims.

Industrial Applicability

[0033] It is a mechanism for installing and discharging a water gate at the lower part where the liquid is being desalinated. Alternative demands are expected by contributing to energy savings and ensuring an appropriate quantity through, for example, replacing existing sliding gates with a completely sealed design.

Claims

1. A water gate for opening and closing a discharge port (2) formed in a side wall (1) of a water storage part into which water can be put, a hinge part (10) coupled above the discharge port (2) among the side walls (1) of the water storage part; a flap gate (20) coupled to the hinge part (10) and rotating up and down about the hinge part (10), wherein when it rotates downward and overlaps with the side wall (1) of the water storage part, the discharge port (2) is closed, and when it rotates upward, the discharge port (2) is opened; a fan-shaped pulling string pulley (30) coupled to a surface facing upward when the flap gate (20) is horizontal; a pulling string lifting means (50) installed on the water storage part; and, a pulling string (40) having one end coupled to the pulling string lifting means (50) and the other end coupled to the flap gate (20), wherein when the flap gate (20) moves to close the discharge port (2), a part of the pulling string (40) is wound around an outer peripheral surface of the pulling string pulley (30); including a water gate characterized by the above.

2. The pulling string (40) is a wire or a chain The water gate according to Claim 1.

3. The flap gate (20) is configured to be rotatable upward until the pulling string pulley (30) contacts the side wall (1) of the water storage part The water gate according to Claim 1 or Claim 2.

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