JPH0688323A - Slanting trough for reservoir - Google Patents

Abstract

PURPOSE:To make it possible to operate vertically a door of a slanting trough installed to a slope of a water reservoir with more advantages. CONSTITUTION:A pair of hydraulic cylinders 4 on both sides are laid out so that they may move alone the both sides of a door 2. The cylinders 4 are laid out with their rods 4a turned upward and coupled with the upper part of the door 2. What is more, an operation section 16 of the hydraulic cylinder 4 is installed to the upper part of an inclined surface. It is, therefore, possible to stabilize the vertical movement of the door 2 by allowing the rod 4a of the paired hydraulic cylinder on both side to project. Only in emergency, a large hydraulic pressure should be applied to the hydraulic cylinder 4 so as to open an intake. During normal operation, it is not required to apply hydraulic pressure to the hydraulic cylinder 4, which is very advantageous from the view point of maintenance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reservoir gutter,
More specifically, the present invention relates to a reservoir gutter that can stably perform vertical movement of a door provided on an inclined surface of the reservoir.

[0002]

2. Description of the Related Art The applicant of the present invention has previously proposed several gutters to be installed in a reservoir (for example, Japanese Utility Model Publication 58-30827).
No., Jitsuko 60-11156). These slant gutters extend the rack rod from the upper surface of the door body along the inclined surface,
By operating the lifting machine installed on the upper part of the inclined surface and rotating the pinion that engages with this rack rod, the door body is moved up and down to open and close the intake port installed on the back side. Was there.

[0003]

[Problems to be Solved by the Invention] The depth of the reservoir is deep,
When the length of the inclined surface is long, the rack rod must be made longer by the above conventional means. However, since the rack rod must be made of steel or the like to be rigid, the longer the rack rod is, the larger the weight of the rack rod becomes, which makes it difficult to vertically move the door body by operating the lifting machine.
Therefore, an object of the present invention is to provide a reservoir trough in which a door can be stably moved up and down without using a rack and pinion.

[0004]

To this end, according to the present invention, a pair of left and right hydraulic cylinders 4 are arranged on both sides of the door body 2. The hydraulic cylinder 4 is arranged so that the rod 4a faces upward, is coupled to the upper part of the door body 2, and the operating portion 16 of the hydraulic cylinder 4 is installed on the upper part of the inclined surface.

[0005]

According to the above construction, the door body 2 can be moved up and down and the water intake port 12 can be opened and closed by operating the operating portion 16 to cause the rod 4a to project upward or retract downward. In this case, since the hydraulic cylinders 4 are on both sides of the door body 2 and these rods 4a are connected to both sides of the door body 2, the vertical movement of the door body 2 can be performed stably.

In this kind of trough, the door body 2 is always lowered to close the water intake 12, and the water intake 12 is temporarily opened only in an emergency such as heavy rain. In consideration of this point, the rod 4a is normally pulled in to close the water intake 12, and the rod 4a is projected to open the water intake 12 only in an emergency. Thus, since the hydraulic cylinder 4 does not require a particularly large hydraulic pressure when the rod 4a is retracted and a large hydraulic pressure when the rod 4a is projected, according to the present invention, the hydraulic cylinder 4 is used only in an emergency. It is sufficient to apply a large hydraulic pressure to No. 4, and it is not necessary to apply the hydraulic pressure at all times, which is extremely advantageous for maintenance.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective side view of a reservoir. An intake pipe 11 is buried in the inclined surface of the reservoir, and a gutter main body 1 is installed so as to cover an intake port 12 at the upper end of the intake pipe 11.

FIG. 2 is a plan view of the gutter main body 1, FIG. 3 is a sectional view, and FIG. 4 is a sectional view taken along line AA. Reference numeral 2 is a door, and doorstops 3 are provided on both sides of the door. The door stop 3 is provided so as to hold both sides of the door body 2, and guides the vertical movement of the door body 2.

A pair of left and right hydraulic cylinders 4 are provided along both sides of the door body 2. Hydraulic cylinder 4
Is arranged with its rod 4a facing upward. A long plate-shaped mounting body 5 is provided on the upper portion of the door body 2, and the upper end portion of the rod 4 a is joined to the mounting body 5. Therefore, when the rod 4a projects upward, the door body 2 moves upward along the door stop 3 to open the water intake 12, and the rod 4a
When is pulled downward, the door body 2 moves downward to close the water intake 12. Reference numeral 6 is a stopper that defines the lowering limit of the door body 2.
As shown in FIG. 3, the lower end of the hydraulic cylinder 4 is pivotally attached to a hinge 7. When the rod 4a is projected and retracted, the hydraulic cylinder 4 swings around the hinge 7 and the rod 4a is projected and retracted. I can do it without any hindrance.

In FIG. 2, a frame 8 is provided above the door stop 3.
Is being built. A guide rod 13 extends upward from the central portion of the mounting body 5, and the guide rod 13 penetrates the frame 8. A long pedestal 14 is provided above the frame 8, and guide rollers 15 provided on the pedestal 14 are in contact with both side surfaces of the guide rod 13. The guide rod 13 moves up and down integrally with the door body 2 and guides the up and down movement.

In FIG. 1, a control unit 1 is provided above the inclined surface.
6 is installed. The hydraulic cylinder 4 is connected to the control unit 16 via a tube 17, and the operation knob (not shown) of the operation unit 16 is operated to control the protrusion / retraction of the rod 4a.

This gutter has the above-mentioned structure, and the handling operation will be described below. Normally, the rod 4a is retracted, the door 2 is in the lowered position, and the water intake 12 is closed. In an emergency, the operating portion 16 is operated to apply hydraulic pressure to the hydraulic cylinder 4 so that the rod 4a is projected upward. Then, the door body 2 moves upward by being guided by the door stop 3 and the guide roller 15, the intake 12 opens, and the water in the reservoir flows into the intake pipe 11. When returning to the normal state, the rod 4a is retracted to move the door 2 downward, and the water intake 12 is closed. In this case, the door body 2 is supported on both sides by the rods 4a of the left and right hydraulic cylinders 4 and moves up and down by the protruding and retracting operation of these rods 4a, so that the up and down movement is extremely stable.

The water intake 12 is closed for most of the year, and is temporarily opened only in an emergency such as heavy rain. In this device, therefore, the hydraulic cylinder 4 is arranged with the rod 4a facing upward, and when the rod 4a projects, the door body 2 moves upward to open the water intake 12, and when the rod 4a retracts, the door body 2 descends. Since the position is held and the water intake 12 is closed, it is not necessary to apply a large hydraulic pressure to the hydraulic cylinder 4 at all times, and a large hydraulic pressure may be applied only in an emergency to cause the rod 4a to project. Therefore, it is extremely advantageous in terms of maintenance.

[0014]

As described above, according to the present invention, since the hydraulic cylinders 4 are provided on both sides of the door body 2 and the rods 4a are projected and retracted, the door body 2 is moved up and down. The vertical movement of the door body 2 becomes extremely stable. Moreover, with the rod 4a facing upward, the hydraulic cylinder 4
Since it is provided, it is not necessary to apply a large hydraulic pressure to the hydraulic cylinder 4 at all times, and it is sufficient to apply a large hydraulic pressure only in an emergency to cause the rod 4a to project, which is extremely advantageous for maintenance.

[Brief description of drawings]

FIG. 1 is a side view of a gutter according to an embodiment of the present invention.

FIG. 2 is a plan view of a gutter body according to an embodiment of the present invention.

FIG. 3 is a side sectional view of a gutter body according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view of a gutter body according to an embodiment of the present invention.

[Explanation of symbols]

 2 door body 3 per door 4 hydraulic cylinder 4a rod 5 mounting body 12 water intake 16 operation part

Claims (1)

[Claims] 1. A door body 2 provided on an inclined surface of a reservoir for opening and closing a water intake 12 provided on this inclined surface, and a vertical movement of the door body 2 on both sides of the door body 2. A door stop 3 and a pair of left and right hydraulic cylinders 4 arranged with the rods 4a facing upward along both sides of the door body 2,
And an operating portion 16 installed on the inclined surface to control the hydraulic cylinder 4 via a tube 17, and an upper end portion of the rod 4a is coupled to an attachment body 5 provided on the upper portion of the door body 2. Reservoir's gutter characterized by