JPS5813814A - Floor slab of falling gate having sand discharging function - Google Patents

Abstract

PURPOSE:To prevent the deposition of sand and gravel near a falling gate by a method in which the length of a floor slab is limited to within the height HgX(0.6-0.9) of the falling gate and a 15-30 deg. slope is provided at the tip of the floor slab. CONSTITUTION:The length L of a floor slab 1 is limited to within the height HgX(0.6-0.9) of a falling gate (a), and a 15-30 deg. angled slope 15 is continuously provided at the tip of the floor slab 1 and also an apron 3 is continuously provided on the downstream side. Overflow 16 and sand and gravel are directed to the slope 15 provided downstream of the falling range by opening the falling gate (a) and discharged to the apron 3. Thus, sand and gravel can be deposited far from the downstream of the falling gate (a), and the falling gate (a) can thus be smoothly fallen down or raised without being interfered by the deposited sand and gravel.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floor plate for an overturning gate having a sand removal function.

Conventionally, this type of overturning gate is designed to fall down during a flood, allowing K11l gravel to flow down with the flowing water, and then to be erected and returned to its original position when the flood ends. (at the gate) is the floor plate (1) K generally lower end spine 1
As shown in Figure 1 at the IfIIC sea, when the ICJILK fell down, it was propped up on a pivot (tilt) and when it fell down, the hook was placed under the apron (near the top of the overturning gate in 51) along with running water. [11L, Flood ends and falls down game] When standing up (a), as shown in &1llK2, 1 pile of gravel is piled up and the falling water overflows over the falling gate and rolls in and goes to the falling gate side. Redeposited again” (b?
), and as a result, the next time the overturning gate O was to be lowered, the re-deposited gravel caused the inconvenience that the overturning gate could not be lowered. For this reason, it has the function of removing this accumulated sand and gravel■! As shown in the Is diagram, a flow guide plate (4) is integrally attached to the back of the overturning dart (a) with an appropriate gap, and a flow guide path (■) is provided in these Oi #1, and these can be opened and closed as appropriate by the ovaya mechanism. In this way, the overflow water from the top of the overturning dirt O was discharged from the diversion channel to the apron to remove sand and gravel.
, also (J shown in IDIE Jll: falling over to U Jl -)
k) At the position where the OIi section falls down on the IC on the apron, place the aR plate (at the tipping gate) at a distance from the O-axis fulcrum (2).
Fix the theory, open and close the overturning dart with an appropriate opening/closing mechanism, and direct the overflow water and gravel to this rectifying plate! I have been suggested something that would add % and make the gravel member far<Fc*.

However, in both of these (I) and (II) tits, not only does the cost of installing sand removal equipment such as flow guide plates and rectifier plates for overturned dirt become extremely expensive, but also the sand removal function becomes blocked by falling debris, etc. It is a round product with some drawbacks such as deterioration.

The present invention is designed to eliminate these drawbacks, and will now be described with reference to embodiments shown in the drawings.

(SL) is an overturning gate, and the overturning gate is pivoted at appropriate positions on the lower end back side of both sides of the overturning gate so that it can be opened and closed after being laid down on the floor plate (1). A roller tread (not shown) is provided on the back of the overturning gate, and a roller tread 1i is provided on the back of the overturning gate.
ft (7), there is a roller (1) at the tip of the gate opening/closing arm (9) rotatably attached to the stand (8) on the floorboard (1).
0).

A torque arm (12) is attached to the base end of the gate opening/closing arm in a via (11), and a hydraulic cylinder (12) is attached to the upper end of the torque arm (12) in a via (11).
3) is connected to the piston rod (14), and the gate opening/closing arm (
12) is rotated back and forth, and the tip roller is moved within the surface of the roller on the back of the tipping gate, thereby opening and closing the tipping gate. However, the present invention is characterized in that it is constructed as follows in relation to the above-mentioned overturning gate. That is, the length of the floor plate (1) Cυ = the height of the overturning gate (I!L) my) x (0,6~0
．． 9), and the tip angle (
A sloping part (15) is provided with the angle of 15° to 30', and a downstream apron (4) is provided continuously to this sloping part.

sP (to) indicates water surface, <16) indicates overflow water (17) indicates watertight rubber.

In the present invention, the floor plate (1) is configured as described above.
The length υ is the height of the overturning gate body) Ht)
G.? ) O @ within the circle: @ constant L, the tip angle (of 15° to 30 @) continues to the tip of the floor mo and the inclined part (1
5), and continuous to this is an apron on the downstream side (which is coated with powder, so experiments show that by opening and closing the overturning gate, overflow water veins (16) and gravel are placed on the downstream side of the falling range). The sand and gravel can be deposited far downstream of the overturning gate by directing the flow to the inclined part (15) with a tip angle of 15° to 30° and discharging it to the apron (9). In this way, the overturning gate cannot be completely lowered due to the accumulated gravel, and the accumulated sand and gravel will not be piled up again on the overturning gate side when it is raised up. This has the effect of providing a floor plate for an overturning gate which has a simple structure and has a sand removal function, and therefore does not require additional construction costs.

[Brief explanation of the drawing]

Figure 1 shows the action of a conventional overturning gate when it falls down, and Figure 2 shows its action when it stands up (W4%). Figure, 5th
The figure is a cross-sectional perspective view of the main part of the floor plate of the overturning gate having a sand removal function according to the present invention. (a) - Overturning gate (1) - Floor plate (15) - Slope. Patent attorney: Satoshi Yugawa - 1 other person Fig. 1 Fig. 3

Claims (1)

[Claims] The gate was installed on the floor so that it could easily fall over! −
), the length of the bed (e) is the modulation gate O.
When the height is within the range of (0.6 to 0.9), the tip angle (of 15'' to 3
1. A floor plate for an overturning gate having a sand removal function, characterized in that a 0° sloped part is provided, and a downstream apron connected to this sloped part is provided.