JPS5938515Y2 - Surface water intake gate hoisting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hoisting device for a surface water intake gate.

In recent years, surface water intake gates have been widely used as devices for selectively discharging warm water or clear water from the surface of reservoirs such as opening dams and drought dams.

This surface water intake gate, for example, is designed to expand and contract an intake pipe made of an expandable multi-stage circular pipe installed in a reservoir, etc., to suck in water at the surface of the water storage area or at a predetermined depth, and release the required amount of water from a lower discharge pipe. be.

In other words, by making a float floating on the water surface follow changes in the water level, the intake pipe suspended in the intake basin guided by the guide salt is expanded and contracted, automatically maintaining a constant intake depth and draining surface water. water intake.

By the way, when performing maintenance and inspection on the above-mentioned surface water intake gate, all stages of the intake pipe are fully collapsed, and the float is used as the main hoisting device, and the intake pipe that has been fully collapsed is integrated using the auxiliary hoisting device. In order to carry out maintenance and inspection by hoisting up the intake pipe, leaving the tier of the water intake pipe to be inspected, and lowering the other tiers using an auxiliary hoisting device for maintenance and inspection, two hoisting devices were required.

The present invention has a tank bottom so that the work of hoisting up and lowering the float and intake pipe during maintenance and inspection at the surface water intake gate can be done with a single hoisting device.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below based on the accompanying drawings.

In the drawing, reference numeral 1 denotes a water intake pipe made of, for example, an expandable and retractable multi-stage cylinder, and a water intake tray 2 is disposed at the top of the water intake pipe 1, and both 1 and 2 are suspended from a float 3.

Further, 4 is, for example, a guide bath coat or a dam body, and a horizontal beam 5 extending above the float 3 is attached to the upper part of the dam body. The float 3 and the water intake pipe 3 are hoisted up and down via a hanging beam 7 which is suspended by a single wire rope W.

Specifically, the guide bath coat or horizontal beam 5 of the dam body 4
In addition to the one hoist 6, there is one fixed pulley 9.
On the other hand, on the upper surface of the suspension beam 7, four parallel pulleys 14, 15, 16° 17 are fixedly arranged in the center, and two parallel pulleys 10, 11 and 17 are fixedly arranged on both sides. and 12
．． 13 is fixedly arranged, and a stopper 8 is removably arranged between the upper surface of the beam 7 and the horizontal beam 5 to maintain the interval constant, and furthermore, on the lower surface of the beam 7, the flow 1- A pair of hooks 19 are fixed to a suspension beam 18 fixed to the upper part of the frame 3.

Further, reference numeral 23 denotes a pair of engagement pieces that are suspended by the suspension beam 7 and engage and pull up the lower layer 21 of the water intake pipe 1. It has a structure in which a pulley (hereinafter referred to as "suspension pulley 24.25J") is installed at the upper part to play the role of engaging the suspension pulley 22 at its lower part.

And the wire rope W wound around the hoist 6
For example, the parallel pulley 14 in the center of the hoist 6 → the parallel pulley m on the 1 side - the suspension pulley 24 - the parallel pulley 11 on the ■ side → the parallel pulley 1 in the center → the fixed pulley 9 → the parallel pulley in the center Installed pulley 15-+
The parallel pulley 12 on the other side → the hanging pulley 25 − + the parallel pulley 1 on the other side + the parallel pulley 17 in the center + the horizontal beam 5 is fixed to the pulley 12 on the other side.

When performing maintenance and inspection of the surface water intake gate using the hoisting device according to the present invention configured as described above, first, the hoisting device 6 is rotated in the forward direction to unwind the wire rope W, and the hanging beam 7 is used for lifting. Lower onto beam 18.

Then, lock the pair of hooks 19 and hang the hanging beam 7.
After integrating the float 3 with the float 3, open the water filling valve disposed on the top of the float 3 and let outside water enter the inside of the float 3.

After that, the wire rope W is wound back again to lower the float 3 and the hanging beam 7, and the water intake pipe 1 is brought into a fully contracted state.

Then, by further unwinding the wire rope W, only the engagement piece 23 is lowered and engaged with the engagement alloy 22 disposed on the lower layer 21 of the water intake pipe 1.

Next, the hoist 6 is reversed to wind in the wire rope W, and the float 3 and the water intake pipe 1 are raised simultaneously to a predetermined position, and then the suspension beam 7 is positioned and fixed at a predetermined height using the stopper 8.

After that, remove the stopper at the top of the second layer of the intake pipe 1 and unwind the wire rope W, then lower the second and subsequent doors of the intake pipe 1, and inspect and repair the outer surface of the first door and the water stop rubber. .

When the inspection and repair of the first stage door is completed, the first and second stage doors are connected with a connecting pin, and then the third and subsequent doors are lowered, and the second stage door is inspected and repaired in the same way as the first stage door.

Thereafter, inspection and repair up to the lower layer 21 are carried out in the same manner.

When the inspection and repair of the gold stage layer is completed as described above, the float 3 and intake pipe 1 are returned to their original positions by performing the reverse operation of hoisting them up.

As described above, according to the present invention, when inspecting and repairing the surface water intake gate, there is no need for two hoisting machines as in the past, but one
Since it can be carried out individually, the cost of the hoisting device can be halved.

In addition, since the wire rope for hoisting the lower layer, which conventionally was always submerged in water, is also used as the main wire rope for hoisting, the wire rope is not submerged in water at all times, thereby greatly extending the life of the wire rope. It also has a great effect on the safety of workers during inspection and repair.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a surface water intake generator equipped with a hoisting device according to the present invention, FIG. 2, and FIG. The opening is an explanatory view showing the time of inspection and repair of the surface water intake gate using the hoisting device shown in the above, and FIG. 4 is a perspective view of the hoisting device shown in the above. 6 is a hoist, 7 is a hanging beam, 8 is a stopper, 9 is a fixed pulley, 10 to 13 are parallel pulleys on both sides, 14 to 17 are parallel pulleys in the center, 23 is an engagement piece, 24.25 is a Hanging pulley, W is wire rope.

Claims (1)

[Scope of utility model registration request] A hoisting device that selectively hoists a float (including the upper door) and a multi-stage cylindrical intake pipe at a surface water intake gate simultaneously or selectably only one of them, and includes one hoisting device fixed to a guide bathtub or a dam body, and a fixed hoisting device. A wire rope is provided with a pulley, four parallel pulleys in the center and two parallel pulleys on each side, and has a rest between the guide bath or dam body and is wound around the fixed pulley. It consists of a hanging beam suspended by a guide bathrobe or dam body, and a pair of engaging pieces each having a hanging pulley on the upper part of which the wire rope is wound. A winding device for a surface water intake gate, characterized in that the wire rope is distributed to the left and right through a fixed pulley and a central parallel pulley, and the other end of the wire rope is fixed to a fixed member and placed at the bottom of the tank.