JPS647247Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an overshot water wheel in which a water receiving chamber with an opening on the outside is arranged in a row by a water receiving plate attached to the periphery of the vehicle body and left and right side plates.

Overshot waterwheels rotate by receiving water at the upper circumference in the water receiving chamber, but with conventional ones, most of the water flows out when the water receiving chamber turns sideways on the way from the upper circumference to the lower circumference. Therefore, there was a drawback that the head difference from the upper circumference to the lower circumference could not be used effectively.

The present invention is designed around the vehicle body having left and right side plates.
In an overshot water wheel in which a large number of water receiving chambers are partitioned by radially projecting a large number of water receiving plates,
The middle part of the main cover plate that opens and closes the opening is rotatably hinged to the opening of each water receiving chamber, and a water inlet is provided in each main cover plate, and an auxiliary cover plate that opens and closes the water inlet. One end is rotatably attached, a float is attached to each of the main cover plate and the auxiliary cover plate, and a float is attached to the front and rear water receiving plates of each of the water receiving chambers so that the main cover plate engages with both ends when the main cover plate is closed. the first to restrict rotation in a predetermined direction
In addition to providing a stopper, each main cover plate is equipped with a stopper.
A second stopper is provided which engages with the free end of the auxiliary cover plate and limits its opening beyond a predetermined value.

Therefore, when water is injected into the water receiving chamber located on the upper circumference of the car body and facing upward, the main cover plate opens the water receiving chamber, and the auxiliary cover plate also opens the water inlet of the main cover plate. Since the area of the main cover plate is reduced by the area of the water inlet, the water injected is less likely to hit the main cover plate and splash back. When the water receiving chamber is filled with water due to such water injection, the main cover plate closes the opening of the water receiving chamber by the action of its float, and
Since the auxiliary cover plate also closes the water inlet of the main cover plate by the action of its float, the vehicle body is rotated in a predetermined direction by the weight of the water in this state. When the water receiving chamber filled with water is positioned at the lower circumference and facing downward due to the rotation of the vehicle body, both the main cover plate and the auxiliary cover plate are opened, and the water in this water receiving chamber is transferred to the main cover plate of the opening. Water is drained through the part opened by the holder and the water inlet on the main cover plate.

The illustrated embodiment will be explained below.

1 is a circular vehicle body, which is a bearing 2' of a base 2.
It is rotatably supported by a shaft 3 which is horizontally supported on the shaft, and around the shaft 12 water receiving plates 4 are attached radially at equal intervals. Water receiving chambers 6 are arranged in a row by attaching side plates 5, 5'.

That is, the water receiving chamber 6 is formed by the vehicle body 1 forming the bottom, surrounded by the water receiving plate 4 and the left and right side plates 5, 5' on the front, rear, left and right sides, and opening on the outside. They are arranged in rows.

7 is a main cover plate installed over the opening 8 of each water receiving chamber 6;
It is a horizontally long rectangle with long side edges 9, 9' on the left and right side plates 5, 5', short side edges 10, 10' on the water receiving plate 4,
4, it has a plate shape that is sized to fit almost tightly into this opening 8, and one short side edge 1 is extended from the center of the back surface.
0, the shaft 11 is attached parallel to this short side edge 10 with a fastener 12, and both ends of the shaft 11 are attached to the left and right side plates 5,
It is rotatably supported in a bearing hole (not shown) provided in the opening of the vehicle body 1, and the short side edge 10 is attached to the water receiving plate 4 at the front in the rotational direction of the vehicle body 1 (direction of arrow A). The opening 8 is closed with the side edges 10' facing the water receiving plate 4 at the rear.

Reference numeral 13 denotes a rectangular water inlet formed between the other short edge 10' of the main cover plate 7 and the shaft 11, and an auxiliary cover plate 14 for opening and closing the water inlet 13 is provided on the back side of the rectangular water inlet 13. ing.

The auxiliary cover plate 14 has a horizontally long rectangular plate shape, and has one long side edge rotatably attached to the lower side of the short side edge 10' of the main cover plate 7, and has a central longitudinal edge on the back side. A float 15 having a semicircular cross section is attached in the direction.

16, 16 are a pair of L-shaped stoppers attached to the lower side of the water inlet 13 of the main cover plate 7,
This is to lock the auxiliary cover plate 14 so that it does not open beyond a predetermined angle.

Reference numeral 17 denotes a float having a semicircular cross section, which is attached in the longitudinal direction between the short side edge 10 of the back surface of the main cover plate 7 and the shaft 11, and is larger than the float 15.

Numerals 18 and 19 are elongated stoppers attached to the openings of the water receiving plates 4 and 4, and the short side edge 10 of the main cover plate 7 is engaged with the lower surface of the stopper 18 of the water receiving plate 4 at the front in the rotational direction of the vehicle body 1. When the short edge 10' of the main cover plate 7 is engaged with the upper surface of the stopper 19 of the rear water receiving plate 4, the main cover plate 7 closes the opening 8 of the water receiving chamber 6. It is becoming locked.

Reference numeral 20 denotes a locking pin protruding from the left and right side plates 5, 5' of each water receiving chamber 6, which locks the main cover plate 7 to prevent it from opening beyond a predetermined angle.

Reference numeral 21 denotes a pulley fixed to the side of the vehicle body 1, and a belt 24 is stretched between this and a pulley 23 connected to a generator 22 installed at a predetermined position via a transmission (not shown). There is.

However, now the water receiving chamber 6′ located on the upper circumference
The main cover plate 7 is tilted diagonally upward to the right (Fig. 1) with the float 17 facing downward to open the opening 8, and the auxiliary cover plate 14 is rotated to open the water inlet 13 as well. When water is poured into the water chamber 6' from diagonally upward to the right in the figure, the water hits the water receiving plate 4 on the left side of the vehicle body 1 (in the figure) and is urged to rotate counterclockwise.

When the water receiving chamber 6' is filled with water, the main cover plate 7
is rotated by the buoyant force of the float 17 to close the opening 8, while the auxiliary cover plate 14 is rotated by the buoyant force of the float 15 to close the water inlet 13, and in this state, the water receiving chamber 6' is displaced to the lower circumference. However, when the main cover plate 7 (lower periphery in Figure 1) is turned downward, the shaft 11 and the short side edge 10'
Since the portion 7a between the shaft 11 and the short edge 10 is wider than the portion 7b between the shaft 11 and the short edge 10, and the float 17 is larger than the float 15, the weight of the water in the water receiving chamber 6' is greater than the portion 7b. As a result, the main cover plate 7 is rotated downward at the portion 7a, and the opening 8 is opened to drain water.

Thus, when the drained water receiving chamber 6 is displaced upward, the main cover plate 7 and the auxiliary cover plate 14 rotate in predetermined directions to maintain the opening 8 and the water inlet 13 open. Water is then injected again, and the generator 22 is driven via the pulleys 21 and 23 by repeating water injection and drainage in sequence and rotating in a predetermined direction. Note that the generator 22
Instead, a pump or other appropriate equipment may be driven.

As is clear from the above, according to the present invention, water is injected into the water receiving chamber at the upper circumference, and the opening is kept closed with a lid while rotating to the lower circumference, causing water to flow out unnecessarily on the way. When the water receiving chamber faces downward at the bottom, the lid opens and drains water, making it possible to effectively utilize the entire drop from the top to the bottom, making it extremely efficient.
It is particularly suitable for the use of hydraulic power that has a low head but a large amount of water, and is easy to manufacture because it has a simple structure in which a lid is provided on the water receiving chamber.

In addition, when water is poured into the water receiving chamber located on the upper circumference of the car body and facing upward, the main cover plate opens the water receiving chamber, and the auxiliary cover plate also opens the water inlet of the main cover plate. Since the area of the main cover plate is reduced by the area of the water inlet, the water that is injected is less likely to splash against the main cover plate. When the water receiving chamber filled with water is positioned at the lower circumference and facing downward due to the rotation of the vehicle body, both the main cover plate and the auxiliary cover plate are opened, and the water in this water receiving chamber is transferred to the main cover plate of the opening. Since the water is drained through the opened portion and the water inlet of the main cover plate, the water can be drained efficiently.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view with one side plate removed, and FIG. 2 is a partially cutaway perspective view of the main parts. 1...Vehicle body, 4...Water receiving plate, 5...Side plate, 6...
...Water receiving chamber, 7...Main cover plate, 8...Opening, 13...
Water inlet, 14... Auxiliary cover plate, 15, 17... Float, 16, 18, 19... Stopper.

Claims (1)

[Scope of utility model registration request] In an overshot water turbine in which a large number of water receiving chambers 6 are partitioned and formed by radially protruding a large number of water receiving plates 4 around a vehicle body 1 having left and right side plates 5, the opening of each water receiving chamber 6 is The intermediate part of the main cover plate 7 which opens and closes the opening 8 is rotatably hinged to the main cover plate 7, and each main cover plate 7 is provided with a water inlet 13, and an auxiliary cover plate 14 which opens and closes the water inlet 13 is provided. One end is rotatably attached,
A float 1 is attached to each of the main cover plate 7 and the auxiliary cover plate 14.
7 and 15, and first stoppers are attached to the water receiving plates 4 at the front and rear of each of the water receiving chambers 6, and engage with both ends of the main cover plate 7 when it is closed to restrict rotation in a predetermined direction. 18 and 19, and each main cover plate 7 is provided with a second stopper 16 that engages with the free end of the auxiliary cover plate 14 to prevent it from opening beyond a predetermined level. Water wheel.