JPS5914494Y2 - Fixing device for buoy type surface water intake equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fixing device for a buoy-type surface water intake facility.

Buoy-type surface water intake equipment, which floats on the surface of the dam's lake, will be damaged if the lake surface freezes in winter.

To prevent this, install an antifreeze device on the buoy or
The buoy must be sunk to the bottom of the lake.

Of these, it is not advisable to provide an antifreeze device because the entire system is expensive, and it is preferable to adopt the latter type of sedimentation.

By the way, the buoy-type surface water intake equipment has a buoyancy tank (air tank) for floating on the lake surface, and can be submerged by pouring water into this buoyancy tank and floated by draining water with compressed air.

However, injecting it into the buoyancy tank is a countermeasure against internal corrosion,
There are many problems such as fluctuations in buoyancy due to the influx of earth, sand, and debris.

The present invention proposes a fixing device for a buoy-type surface water intake facility that can be mechanically submerged and fixed without being injected into a buoyancy tank, and one embodiment thereof will be described below based on the drawings.

Reference numeral 1 denotes a water intake pipe that can swing up and down, and a buoy 2 that can take in water is attached to the tip of the pipe so that it can swing relative to each other.

A foundation 3 is provided below the lower limit submerged position of the buoy 2, and from this foundation 3 is located outside of the buoy 2.
One long base 4 and two short bases 5 and 6 are provided.

These towers 4, 5.6 are the winter dam liquid bottom water level (L, W, L)
A manual winch device 7 is provided on the protruding portion of the elongated base 4, which protrudes upward from the elongated base 4.

This manual winch device 7 consists of a horizontal drum 9 attached to a frame 8 integral with the upper end of a long base 4, a ratchet gear 10 attached to the drum shaft, and a ratchet pawl 11 attached to the frame 8. Ratchet mechanism 12 and the frame 8
a reducer 13 that can be placed on the drum shaft and interlocked with the drum shaft;
It consists of a handle 14 that can be interlocked with this reducer 13,
The speed reducer 13 and the handle 14 are designed to be separable from each other.

Reference numeral 15 indicates a stage attached to the elongated base 4 below the manual winch device 7.

16 is a cable (wire rope) wound around the drum 9 of the manual winch device 7, a guide pulley 18 is attached to the lower end of the long base 4 via a bracket 17, and a bracket 19 is attached to the foundation 3. The ropes are stretched on the lakebed by being guided by a guide pulley 20 attached through the cables, and the ends of the cables are made into multiple (three) branch cables 16a, and simple cables 21 are attached to the ends of these branch cables 16a. It is.

Projections 22 are provided at three locations on the upper outer periphery of the buoy 2, and holes 23 formed in these projections 22 and the simple 21
A pin 25 that can be inserted through the hole 24 is attached to the buoy 2 side via a link 26.

27 is a guide roller for the branch cable 16a attached to the lower end of the buoy 2.

28 is a locking device installed between the base 4, 5.6 and the buoy 2, and a turnbuckle 29 is swingably attached to the tower 4, 5.6 side, and the free end of this turnbuckle 29 is connected to the buoy. It consists of a fixing pin 31 that can be coupled to the upright frame 30 on the second side.

The buoy 2 and the tip of the water intake pipe 1 are connected via a horizontal pin 32 so as to be able to swing relative to each other, and the two are in communication.

In Figure 1, (H, W, L) is the highest water level, (M, W
, L) indicates the intermediate water level.

As shown by the solid line in Figure 1, for example, the intermediate water level (M).

In the water intake state of W, L), the branch rope 16 a of the rope body 16
is temporarily fixed to the long base 4.

When the water level reaches the lowest level (L, W, L) as shown by the imaginary line, the buoy 2 is located between each tower 4, 5.6.

To submerge the buoy 2 from this state, first approach the buoy 2 by boat and remove the temporary fixing of the branch cable 16a to the tower 4.5.6.

Then, attach the simple 21 at the tip of each branch cable 16a to the protruding piece 2.
2 and insert the pin 25 between both holes 23 and 24.

At this time, the reducer 13 has already been installed on the frame 8 and is interlocked with the drum shaft, and the handle 14 is further attached to the reducer 13.

Therefore, the worker who has moved onto the stage 15 rotates the handle 14 and winds up the rope body 16 with the rotating drum 9, thereby making it possible to lower the buoy 2 and submerge it in the water.

When the buoy 2 is submerged in water to a predetermined position, a ratchet mechanism 12 is activated to stop the drum 9 from being reversed.

Next, by connecting the free end of the turnbuckle 29 to the upright frame 30 via the fixing pin 31, the submerged buoy 2 can be locked to the tower 4, 5.6 side as shown in FIG.

This can prevent the buoy 2 from swinging due to waves.

Once the buoy 2 has been fixed, the reducer 13 and handle 14 are removed so that the towers 4, 5, and 6 can be submerged in water.

Note that by performing the reverse operation, the buoy 2 in the locked state can be released.

As described above, according to the present invention, the buoy can be mechanically submerged without being injected into the buoyancy tank, and after being submerged, it can be fixed with a locking device below the minimum water level, and the buoy can be The burden on the cord can be relieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic front view;
2 is a schematic plan view, FIG. 3 is a front view of the main parts, FIG. 4 is a plan view of the manual winch device, and FIG. 5 is a plan view of the main parts. 1... Water intake pipe, 2... Buoy, 4...
...Long group, 5,6...Short group, 7...
...Manual winch device, 9...Drum, 12.
...Ratchet mechanism, 13...Reduction gear,
14...Handle, 15...Stage, 16...Cable body, 16 a...Branch cable, 21...Simple, 25. ·····pin,
28...Lock device, 29...Turnbuckle, 31...Fixing pin, (HoW, L)
...Highest water level, (M, W, L) ...Middle water level, (L, W, L) ...Minimum water level.

Claims (1)

[Scope of utility model registration request] A buoy that can take in water is installed at the tip of a water intake pipe that can swing up and down, and a tower is installed outside the lower limit submersion position of this buoy.
This tower protrudes above the lowest water level of the dam in winter, and a manual winch device is installed on the protrusion, and a cable wound around the manual winch device is stretched on the lakebed and its end is attached to and detached from the buoy. 1. A fixing device for a buoy-type surface water intake facility, characterized in that a locking device is provided between the base and the buoy.