JPH01218480A - Wave breaking control device for surfing pool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a device for controlling wave breaking due to return water from the shore of a surfing pool.

[Conventional technology] With the recent diversification of leisure facilities, wave heights are high,
Developments and announcements have been made of human surfing areas that provide waves suitable for long-cycle surfing. For example, Nippon Kokan Co., Ltd. catalog rBL published in September 1986.
There is a UE BEACH large surfing pool.As shown in Figures 4 and 5, the vertical cross-sectional shape of the pool consists of a deep water section 1 with deep water in front of the wave making device 5, and a first slope continuing from the deep water section 1. l! I2, a second slope part 3 following the first slope part 2, and a beach 4, and the waves created by the wave making devices 5 and 5 pass through two channels a and b to the second slope part 3. The waves are combined into a high wave 7 suitable for surfing, which travels along the slope and is launched onto the beach 4.

[Problem to be solved by the invention] However, after the waves are washed up on the beach 4, the returning water 8
When flowing down the second slope part 3, this returning water passes through the bottom of the high wave forming part, thereby breaking the wave height and shape of the high waves (called wave breaking), which reduces the real pleasure of surfing. The problem is that it decreases.

[Means for Solving the Problems] The present invention aims to solve the above problems, and includes a plurality of return water inlets provided on a second slope near the shore of a surfing pool, and the return water inlets. A butterfly valve installed at the top, a temporary water tank that stores the return water flowing into the water intake, a water suction pump that sucks the return water from the temporary water tank and sends it, and discharges the water from the water suction pump to the deep water area. This is a wave breaking control device for a surfing pool consisting of an outlet and an outlet.

[When the action waves move toward the beach on the second slope, the butterfly valve closes the water intake, but when the water returning from the beach flows down the second slope, the return water closes the butterfly valve. Open the butterfly valve upward using the locking part as a fulcrum. As a result, the water inlet opens and the return water flows into the water inlet and into the temporary water storage tank. Return water from the temporary storage tank is discharged from the deep water outlet by a water suction pump. In addition, since the butterfly valve itself resists the returning water, the speed of the returning water is reduced and a wave-breaking prevention effect can be obtained. In this way, the breaking of high waves is controlled because the returning water does not pass under the high wave forming part.

[Example] Examples of the present invention will be described below based on the drawings. 1st~
In FIG. 3, 1 is a deep water part, 2 is a first slope part with a steep slope following the deep water part 1, and 3 is a second slope part with a gentle slope following the first slope part 2. A beach 4 is formed following the second slope. The second slope 3 near the beach 4 is provided with a return water intake 10 and a plurality of butterfly valves 11 arranged in two rows above the water intake 10. The number of rows depends on the amount of return water and the intake The installation will be increased or decreased as appropriate depending on the pitch. The butterfly valve 11 is made of a flexible material such as rubber. As shown in FIG. 3, a return water introduction notch 18 is formed in the front part of the water intake port closing part 17, and the rear part 12
is locked to the second inclined portion 3. Its planar shape is rectangular or circular (not shown), and the rear part 12 is thin so that the valve body can be easily opened and closed. In addition, when the butterfly valve 11 is made of a hard material, the locking part of the valve may have a hinge structure, and the water intake port 10 and the temporary water storage tank 13 are connected by piping. The temporary water tank 13 and the discharge port 16 provided in the deep water part 1 are connected by piping, and a strainer 14 and a water suction pump 15 are provided in the middle of the piping. In order to reduce the speed of the discharged return water, the discharge port 16 may have a structure with a large opening area, such as a trumpet tube shape or a header box with many holes.

Return water 8 from the beach 4 flows down the slope to the butterfly valve 1
1, the butterfly valve 11 opens upward using the rear locking portion as a fulcrum.

(Note that if a stopper is provided to limit the opening of the valve, it will be easier to guide the return water to the water intake port.) The return water will flow into the open water intake port 10 and enter the temporary water storage tank 13 through the piping. Water is sucked by a water suction pump 15 through piping and a strainer 14, and is discharged from a discharge port 16 provided at the bottom of the deep water section 1 through the piping. Therefore, high waves are formed in the returning water 8 and the return water 8 does not pass through the famous spots, so high waves suitable for surfing can be obtained. In addition, the capacity of the water suction pump 15 can be reduced because the butterfly valve 11 selectively absorbs only the return water and only needs to send the water.

[Effects of the Invention] In the present invention, return water from the beach is sucked in at the second slope and discharged to a deep water area where it is less affected, so it is possible to form high waves with a good shape suitable for surfing. .

Further, by providing the butterfly valve, only the return water needs to be selectively sucked, so that the capacity of the water suction pump can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a wave breaking control device for a surfing pool according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ of FIG.
3 is a detailed view of part A in FIG. 2, FIG. 4 is a plan view showing a conventional surfing pool, and FIG. 5 is a sectional view taken along the line V--■ in FIG. 4. 1... Deep water part, 2... First slope part, 3... Second slope part, 4... Beach, 6... High waves, 8... Return water, 1
0... Water intake port, 11... Butterfly valve, 12... Locking part, 13...
- Temporary water storage tank, 15... Water suction pump, 16... Outlet.

Claims (1)

[Claims] A plurality of return water intake ports provided on a second slope near the shore of the surfing pool, a butterfly valve provided on the return water intake ports, and a temporary water tank for storing return water flowing into the water intake ports;
A wave breaking control device for a surfing pool comprising a water suction pump that absorbs and sends returned water from the temporary water storage tank, and an outlet that discharges the water sent from the water suction pump to a deep water area.