JPH0355623Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is designed to prevent the door from closing when the amount of water in the groove increases and the water level rises by interposing it in the middle of a required flowing water groove. This relates to a water gate in which the water gate is automatically opened to lower the water level when the water is in the water, and is characterized by being constructed so that the opening and closing operations can be performed with remarkable reliability. It is.

(Conventional technology) Conventionally, there have been various types of water gates, but
All of them have complicated structures, and therefore, their maintenance and management has been accompanied by a large amount of human labor.

(Problems to be solved by the invention) The present invention aims to eliminate the above-mentioned problems in the conventional technology, and is designed to simplify the structure and provide automatic opening/closing operation with remarkable reliability. It is characterized by this.

(Means for Solving the Problems) The present invention has a vertical guide groove 2a, a circular arc shape centered on the upper end of the vertical guide groove 2a, and a groove branching from a predetermined point with respect to the vertical guide groove 2a. Control guide grooves 2, 2 constituted by continuous arc-shaped guide grooves 2b are provided in the center portions of the inner walls of the side walls 1a, 1a formed to face the bottomed waterway 1, and Near the upper and lower ends of the water gate door 3, which has a cavity 3a formed airtight,
Attach the first guide shaft 4 and the second guide shaft 5, respectively, and slide the respective ends of the first and second guide shafts 4 and 5 into the vertical guide grooves 2a and 2a of the control guide grooves 2 and 2, respectively. This relates to a water gate that opens and closes immediately in response to the water level, and is characterized by being loosely fitted so that it can move freely.

(Function) The present invention is intended to be used by being placed in a running water ditch, for example, in the middle of a drainage ditch. In this case, the flow of water flowing through the required water channel is obstructed through the water gate door 3.

On the other hand, if the flow rate in the water channel increases and the water level at the starting end of the water channel 1 (water flows from the direction indicated by the arrow in Fig. 5) gradually rises, the water gate 3 has a cavity. 3a is formed, when the water level rises above a certain amount, that is, the cavity 3a is formed.
When the buoyancy based on the float-like function according to a exceeds the stabilizing force due to the own weight of the water gate 3, the water gate 3
As shown by the chain lines in FIG. 5, the control shaft 2 is raised along the vertical guide groove portions 2a, 2a in the control guide grooves 2, 2 via the first and second guide shafts 4 and 5. Therefore, the running water will escape from below the water gate door 3.

On the other hand, if the water level rises further, the water gate door 3 will also rise further, but at this time, when the second guide shaft 5 reaches the arcuate guide groove portions 2a, 2a in the control guide grooves 2, 2, The water gate door 3 tilts based on the pressing force of the water pressure, and its second guide shaft 5 enters the arcuate guide groove portions 2a, 2a, and rotates as shown by the solid line in FIG. 6 to widen its opening degree. becomes. As the water level further rises, the opening degree of the water gate 3 becomes wider and wider, and finally it reaches a horizontal state as shown by the chain line in FIG. 6, and the water gate becomes completely open.

When the water level falls, the water gate 3 immediately returns to its original position based on the above-mentioned reverse action, and finally returns to the closed position again.

Figures 7 and 8 show examples in which the present invention is applied to a drainage ditch with an underground penetration function, and the drainage ditch is bottomless, and supports A are erected at predetermined intervals. At the same time, a side plate B with numerous infiltration holes is installed between the opposing columns, and this allows rainwater, etc. that has flowed into the drainage ditch to permeate into the ground from the side plate B part and the bottom. It's something to put away.

Therefore, in such a drainage ditch, it is necessary to allow the inflowing rainwater etc. to stay in the ditch for as long as possible so that it can penetrate into the ground. The present invention proposes that if the drainage ditch is interposed in each predetermined section, the inflow into the section will be stopped based on the closure of the water gate 3, and good underground penetration will be achieved. When the water level in the drainage ditch rises significantly, the water gate door 3 will open based on the operation described above, the flow stoppage in the drainage ditch will be automatically released, and the inflow will overflow from the drainage ditch. This will eliminate such situations before they occur.

(Example) An example of the configuration of the present invention shown in the drawings will be described in detail as follows.

In the figure, reference numeral 1 denotes a bottomed waterway having opposing side walls 1a, 1a, and control guide grooves 2, 2 are formed in the center portions of the inner walls of the side walls 1a, 1a, respectively.

The control guide groove 2 has a vertical guide groove portion 2a, and has an arc shape centered on the upper end of the vertical guide groove 2a, and is connected to the vertical guide groove portion 2a so as to branch from a predetermined point. The arc-shaped guide groove portion 2b is provided.

3 is a water gate, and there is a cavity 3a inside.
By forming it airtight, it has a float-like function. 4 is a first guide shaft attached near the upper end of the water gate door 3; 5 is a second guide shaft similarly attached near the lower end; both ends of both guide shafts 4, 5 are connected to the control guide groove 2 described above. , 2 are slidably and loosely fitted into the vertical guide grooves 2a, 2a, respectively.

The water gate door 3 is configured to be held in the lowest position by its own weight when the second guide shaft 5 is located at the lowest end of the vertical guide grooves 2a, 2a. Then, the water gate door 3 rises due to buoyancy, and the first guide shaft 5 moves vertically to the vertical guide grooves 2a, 2.
The second guide shaft 5 is configured to be located at the starting end of the arcuate guide groove portions 2b, 2b when located at the uppermost end of the guide shaft 5a.

In the embodiment shown in the drawings, the lower end of the water gate door 3 in the closed state is held in a slightly floating state from the bottom surface of the waterway 1; It may also be in contact with the bottom surface.

In the embodiment shown in FIG. 9, float chambers 10 and 11 are formed on both sides of the water channel 1, and extension ends 4a and 4a are provided at both ends of the first guide shaft 4 to connect both float chambers 10 and 11. and the extension end 4
Floats 12 and 13 are connected to a and 4a, respectively, and the first guide shaft 4 moves up and down in conjunction with the rise and fall of the floats 12 and 13, thereby applying an opening and closing force to the water gate door 3. It is something. Note that both the float chambers 10 and 11 are provided with guide grooves 10a and 11a for receiving the first guide shaft 4.
The guide grooves 10a, 11a are required to have the same length as the vertical guide groove portion 2a of the control guide groove 2, and in this case, the vertical guide groove portion 2a of the side wall is required to be a cutout groove.

Further, both float chambers 10 and 11 have through holes 10 and 10, respectively.
The water level is maintained at the same level as the water level at the entrance of the waterway 1 via the channels b and 11b.

The water gate 3 according to the present invention has a float-like function performed by the gate itself based on the formation of the cavity 3a, and can automatically open and close in response to changes in water level.

Therefore, the float 12 provided as described above,
13 is merely an auxiliary measure and is not an absolute condition at all. Moreover, it goes without saying that the floats may be provided only on one side, instead of providing two symmetrically as shown in FIG.

(Effects of the invention) According to the invention detailed above, the water gate 3 is automatically opened and closed based on the rise and fall of the water level in the water channel, and its operation is directly affected by the water level. Since the water gate is configured to be controlled by the buoyancy exerted by the water gate itself, the opening/closing control of the water gate is much faster than if the opening and closing of the water gate were controlled via other interlocking mechanisms that operate based on changes in water level. Operation is significantly more reliable and the probability of failure is significantly reduced.

Furthermore, since the present invention combines the waterway 1 and the water gate 3, the whole becomes a block, and therefore,
The construction is now sufficient to be a simple installation work, and the problem of requiring the help of specialized engineers, which is inevitably required in conventional products that rely on on-site assembly, is completely eliminated. Construction will be significantly simpler and faster.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a sectional view taken along line X-X in Fig. 2, Fig. 2 is a plan view of the invention, and Fig. 3 is a side view of the invention. Figure, 4th
The figure is an explanatory cross-sectional view showing the control guide groove 2 part which is the main part of the present invention, Figures 5 and 6 are cross-sectional views for explaining the operation of the present invention, and Figure 7 is an example of the use of the present invention. The explanatory vertical sectional view shown in FIG. 8 is Y- in FIG. 7.
The Y-line sectional view and FIG. 9 are plan views showing another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Waterway, 1a... Side wall, 2... Control guide groove, 2a... Vertical guide groove part, 2b... Arc-shaped guide groove part, 3... Water gate door, 10, 11... Float chamber,
12, 13...Float.

Claims (1)

[Scope of utility model registration request] Control consisting of a vertical guide groove 2a and an arcuate guide groove 2b that has an arc shape centered on the upper end of the vertical guide groove 2a and is connected to the vertical guide groove 2a so as to branch from a required point. The water gate door 3 has guide grooves 2, 2 provided in the center of the inner walls of the side walls 1a, 1a formed to face the bottomed waterway 1, respectively, and a cavity 3a airtightly formed inside. A first guide shaft 4 and a second guide shaft 5 are attached near the upper end and the lower end, respectively, and both ends of the first and second guide shafts 4 and 5 are connected to the vertical guide of the control guide grooves 2, 2. A water gate that opens and closes in immediate response to the water level, characterized in that it is slidably and loosely fitted into grooves 2a and 2a, respectively.