JPH02104809A - Flush-board gate - Google Patents

Abstract

PURPOSE:To enable the blocking and releasing of a water channel to be certainly performed with safety by setting a suspending beam for moving down into the recessed section of a gate main-body and suspending the gate main-body with a suspending hook to be hooked to the body from the lower section. CONSTITUTION:By using a guide groove 3, a suspending beam 11 is permitted to come in close contact with a gate main-body 4 set in a water channel 1, from the upper side. After that, the suspending hook 8 of the main body 4 is pushed downward by the L-shaped hook 12 of the beam 11 and starts rotating with the center of a hinge 14. After that, when the hook 12 is sufficiently moved down into the recessed section 9 of the main body 4, then the hook 12 is positionally shifted from the rotating area of the hook 8, and the hook 8 is returned to an original horizontal position. Besides, when the beam 11 is moved upward, when the hook 8 and the hook 12 are put together, and along with moving the beam 11 upward, the main body 4 is moved upward.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gate device for restricting or discharging fluid, and particularly to a corner drop gate equipped with a water channel, a screen chamber, and a pump chamber water tank.

(Prior art) As described in Japanese Patent Application Laid-open No. 11.7317/1981, a hanging device for suspending the corner drop gate body using a crane or the like and transporting it to a guide groove is a lifting beam. , a bar elastically supported and protruded from below the center of the beam, a lever for lowering the bar, and a bent part supported by the beam.
It also consists of a pair of links in the shape of an abbreviation, one end of which is supported by a pin in the elongated hole of the bar, and the other end of which has a hook-engaging pin.

The hook protruding from the upper surface of the corner drop gate body can be hung by holding the engagement pin by pressing down the lever of the hanging device.

In addition, in conventional technology that does not use such a device, when suspending the gate body using a crane, etc., a dialer dives into the waterway and connects wires etc. connected to the crane to the gate body by underwater work. The gate was lifted by this process.

(Problem to be solved by the invention) The above-mentioned prior art relates to a hanging beam.

It has a pair of L-shaped links, and there is a push-down action for the lever, but no consideration has been given to simplifying the structure or ensuring reliability, resulting in problems such as malfunctions and malfunctions. Further, since the structure is complicated, no consideration is given to the fact that the weight of the hanging beam itself increases, resulting in an increase in the capacity of the crane and the like. Next, regarding the gate body, no consideration was given to the fact that the hook protrudes from the top of the gate body.
There was a problem in that the protrusions were easily damaged or deformed. Next, regarding lifting the gate.

No consideration has been given to the fact that the gate body is constantly pressed against the downstream side of the guide groove by water pressure from the upstream side of the gate where water is stored. A crane with a capacity exceeding the sum of the maximum static friction force generated between the gate and the guide groove and the weight of the gate body must be used;
The hook at the top of the gate could be damaged. Also,
When using a separate pump to transfer the fluid from the upstream side to the downstream side and balance the water pressure between the upstream and downstream sides, a pump had to be prepared for the corner drop gate.
When the dialer performs lifting work underwater, there is a problem with the safety of the dialer.

An object of the present invention is to provide a corner drop gate that has a mechanism that can balance upstream and downstream water pressure during lifting by the action of the corner drop gate itself, and can safely and reliably stop and release waterways. It is in.

[Means to solve the problem]

The above object is to achieve weight reduction and simplification of the lifting beam by providing no mechanical parts such as links and levers on the beam and providing one mechanical part on the gate main body side. At this time, the lifting mechanism installed on the gate body is also of a simple structure, and the protruding part of the gate body is designed so that the lifting hook can be built into the gate body, so that it does not increase the overall weight. There's nothing left to do. In addition, other small protrusions are eliminated, and the locations where protrusions occur are achieved by creating a sufficiently thin structure and shape.As for water pressure acting from the upstream side, the gate body Openings are provided on each of the upstream and downstream sides, creating a space between the openings that allows fluid to pass through, and by making the lifting hook itself move like a valve body, when the gate is closed, the lifting hook will The fluid is stopped, and when the gate is opened, the fluid passes through the opening and flows from the upstream side to the downstream side, eliminating the water pressure difference between the top and downstream of the gate and eliminating the frictional force between the gate body and the guide groove. Next, with regard to lifting the gate by the underwater work of the dialer, by using mechanisms such as lifting beams and lifting hooks, it is possible to lift the corner drop gate without requiring the underwater work of the dialer. can.

[Effect]

The lifting beam has a pair of L-shaped hooks at positions corresponding to the lifting hooks on the gate body.

Since the lifting beam does not have an operating part, it pushes down the lifting hook of the gate body while maintaining its L-shape. When the L-shaped hook is inserted deep into the recess of the gate body and the lifting hook returns to its original horizontal position, lift the lifting beam and the L-shaped hook and the lifting hook will engage and lift the gate body. is lifted and the gate can be opened. At this time, the lifting hook of the gate body is normally supported by a spring etc. so that it is in a horizontal position, and the hinge structure allows rotation only within a range of 90 degrees vertically downward. , has a mechanism that returns to the horizontal position when no external force is applied, using the action of a spring or the like. Alternatively, the hook for lifting the gate main body is made of a light material that floats on water, and has a hinge structure that allows rotation of only 90 degrees from vertically downward to horizontally. In this case, if the gate body is below the water surface, the buoyancy of the lifting hook will return the hook to the horizontal position, allowing it to be lifted using the hanging beam. The gate body is overlapped with the concave part of the upper part of the gate body one step below without a gap through the rubber for preventing water leakage, and the other gate bodies are also overlapped with the rubber hair for preventing water leakage in between, making it possible to close the fluid. When the gate is opened, the protrusion is removed by lifting the top gate body that is not above the water surface, and the lifting hook returns to the horizontal position. The hanging hook also functions as a valve body between the upstream opening and the downstream opening.

By returning to the horizontal position, the valve is opened and fluid flows from the upstream side to the downstream side through the opening. As the fluid continues to flow in and the water level on the downstream side becomes equal to the water level on the downstream side, the inflow stops and the difference in water level between the upstream and downstream sides disappears, so the frictional force between the gate body and the guide groove disappears. The gate body can be lifted only by its own weight. Since the lifting hook returns to the horizontal position by the force of a spring or the like or by buoyancy, there is no possibility of malfunction.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. The corner drop gate 2 installed in the waterway 1 has guides tl on both sides.
Provide I3. Along this guide 'a3, a gate body 4 is set on the waterway to stop the fluid. Gate body 4
includes an upstream opening 5, a downstream opening 6, and a cavity 7 connecting both openings. When it is vertically downward, it acts as a valve body for the cavity 7, and when it is horizontal, the gate lifting hook 8, which acts as a gate lifting hook, rotates, and the fluid flows downstream. When the gate recess 9, which is a space for flowing into the side opening, and the gate main body 4 overlap, there is no gap in the recess 9. Further, the gate lifting beam 11 is provided with a pair of L-shaped hooks 12 for lifting the gate body 4 in combination with the gate lifting hooks 8. A hanging hook 13 for lifting with a crane or the like is provided on the upper part of the gate lifting beam 11. Next, the details of the fitting portion of the gate body 4 will be explained with reference to FIG. 2. Goo 1 - The lifting hook 8 connected to the main body 4 by a hinge 14 is normally kept in a horizontal direction when supported by a spring or the like, and when made of a material with a specific gravity lighter than water. is kept free. In either case, the lifting hook 8 is configured to be allowed to rotate only within 90 degrees from vertically downward to horizontally due to the shape of the gate main body 4. The inside of the gate body 4 starts from the upstream opening 5, passes through the space 7, passes through the lifting hook 8 like the valve body of a check valve, reaches the fitting recess 9, and then opens the downstream opening. Up to section 6, fluid is allowed to pass only if the lifting hook 8 is not restrained. The fitting part convex part 10 is fitted into the fitting part concave part 9 of the gate main body 4 at the lower stage through the water leakage prevention rubber 15 without any gap. At this time, the convex portion 10 is -
Push down the hanging hook 8 of the gate body 4 at the bottom of the step,
The lifting hook 8 is in a state of closing the opening connecting the cavity 7 following the upstream opening 5 and the recess 9 without any gap. Next, the process in which the corner dropping game 1- stops or releases fluid will be explained using FIGS. 3 and 4. First, when closing a waterway, the lower gate main body 4 shown in FIG. 3 is suspended into the waterway. At this time, the lifting hook 8 is
Since it is in a free state, fluid can freely flow between the upstream opening 5 and the downstream opening 6, and the water channel is in an unclosed state. Next, when the upper gate body 4' is suspended over the lower gate body 4, the convex portion 10' of the upper gate body 4' is fitted into the recess 9 of the lower gate body 4. At this time, the convex portion 10' pushes down the lifting hook 8 of the lower gate main body 4, and dams up the fluid from the upstream opening 5 to the height of the downstream gate main body 4. FIG. 4 shows this state. Repeat this operation on top of the gate body that is in contact with the water surface.

Further, by suspending the second stage gate body, the waterway is completely closed.To open the first closed waterway, the above-described procedure is reversed.

Initially, the main body of the gate closed the waterway in the state shown in Figure 4, and a third gate was opened using a gate lifting beam.
Lift up the upper gate body 4' as shown in the figure. Since the top gate body is completely installed above the water surface, it can be lifted only by the weight of the gate body without being affected by water pressure.

Next, regarding the gate body in contact with the water surface, by removing the upper gate body 4', the protrusion 10' disappears, so the lifting hook 8 becomes free, and the fluid flows through the upstream opening 5. from the downstream opening 6
flows out from. Due to this action, the water pressure acting on the gate body is reduced by filling the downstream side with fluid.
Since the gate body 4 is balanced downstream, there is no need to consider the frictional force between the gate body and the guide groove 3 when lifting the gate body 4. This makes it possible to lift the gate body using only the weight of the gate body. If you repeat this operation and lift the bottom gate, the waterway will be completely opened.Using Figures 5, 6, and 7,
We will explain how to lift the gate body using the lifting beam. The guide groove 3 is connected to the gate body 4 installed in the waterway.
Using this, the lifting beam 11 is approached from above. The lifting hook 8 of the gate body 4 is kept in the horizontal direction by the action of a spring, etc., but the lifting beam 1
As the L-shaped hook 12 of No. 1 descends, the L-shaped hook 12
It is pushed downward and begins to rotate around the hinge 14. L
When the L-shaped hook 12 is sufficiently lowered into the recess 9 of the gate body 4, the L-shaped hook 12 is out of the rotation range of the lifting hook 8, so as shown in FIG. returns to its original horizontal position. After confirming that the fitting portions on both sides of the gate body 4 are in the state shown in FIG. 6, the lifting beam 12 is raised.

Then, as shown in FIG. 7, the lifting hook 8 and the L-shaped hook 12 overlap, and due to the restrictions imposed by the shape of the gate body, the lifting hook 8 is suspended.

Since it cannot rotate upwards from the horizontal position shown in FIG. 7, and the L-shaped hook 12 cannot be removed from the gate body 4, the gate body 4 rises as the lifting beam 11 rises. do.

Thereby, the gate main body 4 can be lifted up and removed from the waterway. Next, FIG. 6 shows the operation for removing the lifting beam from the lifted gate body.

This will be explained using FIG. In the condition shown in Figure 7, the gate body removed from the corner drop gate is carried to the disassembly space using a crane or the like, and is lowered to the ground in the disassembly space.

FIG. 6 shows the completely dropped state. In the state shown in FIG. 7, the lifting beam 11, which cannot be removed because its sides are also blocked by the outer plate of the gate body 4, is lowered deeply into the recess 9 as shown in FIG. 12 is
through the downstream opening 6 to the downstream side of the gate body 4;

It can be pulled out. Utilizing this action, the lifted gate body 4 can be lifted horizontally on the downstream side on the ground.

By pulling out the lifting beam 11, it becomes possible to store it in the storage position, and the lifting beam 11 is used to lift the next gate body 4. This operation makes it possible to lift the gate body that was in the storage position using the lifting beam, set it as a corner drop gate, and close the waterway. In addition, by operating in the reverse order, the gate body set as a corner drop gate can be lifted using a lifting beam, stored in the storage position, and the waterway can be completely opened.According to this embodiment, By using a lifting beam with a simple structure, it is possible to easily and reliably set or remove a game body that does not have a protruding part that can be damaged. Further, due to the mechanism of the gate body itself, when the gate is opened, fluid flows from upstream to downstream to balance the water pressure, so that lifting can be carried out without considering frictional force etc. during lifting.

Furthermore, since there is no protrusion on the gate body that is likely to be damaged, there is no possibility that the gate will become impossible to hang. In addition, hang the corner drop-L
In order to eliminate the maximum static friction force that occurs between the gate body and the guide groove due to the action of water pressure, a valve mechanism is provided inside the gate body, and when lifting the gate, By allowing fluid to flow downstream, it is possible to balance the water pressures upstream and downstream. This function allows the gate body to be reliably suspended or suspended with a simple structure.

By balancing the water pressure, there is no need to bear the burden of frictional force, and the capacity of the crane etc. only needs to be taken into account the weight of the gate itself, contributing to the economic efficiency of the entire gate area. Moreover, it has been widely used in the past when lifting a corner drop 5. Compared to the Diaper method, this method is much safer in terms of safety because it does not require humans to enter the waterway.

〔Effect of the invention〕

According to the present invention, the main body can be lifted onto the game 1 or lowered by a lifting beam that does not have a complicated mechanism.

[Brief explanation of drawings]

Fig. 11 is a cross-sectional view of a corner drop game according to an embodiment of the present invention, Fig. 2 is a perspective view of the fitting part of Fig. 1, Fig. 3,
Fig. 4 is an explanatory diagram showing how the gate bodies fit together, and Figs. 5, 6, and 7 show how the gate bodies are lifted using a lifting beam. It is an explanatory diagram. 1... Waterway, 2... Corner drop gate, 3... Guide groove, 4... Main body to gate 1, 5... "Second stream side opening part,
6... Downstream opening, 7... Cavity, 8... Knock for lifting, 9... Recessed portion of gate body, 10... Convex portion of gate body,] 1. Beam for lifting, 12.・・L-shaped hook, 1 piece 3・・Hanging-1・Drawing hook, 14・
・Hinge, 15 ・Rubber for preventing water leakage. Figure 1 Figure 2 Figure 3 Figure q' Figure 4 Figure 5 Figure 6 Figure 7! I

Claims (1)

[Claims] 1. In a waterway or storage tank through which fluid flows, two openings are provided on the upstream and downstream sides, respectively, at positions with the center line of the waterway as the axis of symmetry, as gates provided to stop or release the fluid. A space is provided between the upstream opening and the downstream opening that allows the fluid to pass, and the fluid flows only in the direction from the upstream side to the downstream side in the space.
A lifting hook is provided that rotates through a hinge at 90 degrees from vertically downward toward the outside of the waterway, and has a concave portion on the operating side of the lifting hook, and a convex portion of a size corresponding to the concave portion on the lower portion. A gate body and a number of the gate bodies capable of restraining the fluid are dropped and installed along guide grooves provided on both sides of the water channel to restrain the flow of the fluid;
Alternatively, a corner dropping gate that can be released, and a hook corresponding to the lifting hook for lifting the gate main body, sinking into a recess of the gate main body, and hooking the lifting hook from below, A corner drop gate comprising a lifting beam that enables gate bodies to be lifted one by one from the waterway.