JPH0641134Y2 - Automatic float dropping device for flow observation in rivers - Google Patents

Description

[Detailed Description of the Invention] In various large and small rivers, the water level, the amount of water, and the amount of flow are not in danger under normal weather.
When it rains, the amount of water in the river increases due to the amount of rainfall, and the flow rate increases, with the risk of flood damage.

Therefore, in each river or the like, the float is dropped at normal times and when the water level rises, and the flow rate is measured while measuring the flow velocity of the float, but in the conventional work of dropping the float, The one in which the drop operator dropped a float of a length adapted to the water level while moving to the center of the bridge and other predetermined positions, and the drop float was measured by the measurer on the shore at a certain position. Therefore, dropping a float from a bridge of a flooded river always causes danger to the dropping operator, and it is difficult to measure due to uneven timing of dropping, location of dropping, etc. Because the flow velocity of water varies depending on the width, the length of the floating float also varies significantly, and the flow velocity differs between the center of the river and the areas near both banks, which makes it extremely difficult to accurately measure the flow rate. It was.

In order to eliminate the above-mentioned drawbacks, the present invention installs a cable at a location suitable for river flow observation, and movably attaches a float drop device configured with an automatic drop device to the cable to open and close it. Insert and bond a float of a specified length from below to the dropper, connect the wire from the operation panel to the float drop device, and hook the wire in order to smoothly extend and contract the wire. None, with different length floats set on each dropper, while moving the dropper to the position where it should be dropped by operating the moving wire,
This is due to the creation of the device, which is characterized in that predetermined floats are sequentially dropped by operating an electromagnetic machine to accurately observe the flow velocity and flow rate.

Hereinafter, the configuration of the present invention will be described with reference to actual examples.

A plurality of electromagnets (2) are attached to the front and rear inside the base (1), and guide rods (5) are provided on both sides of the hole (4) where the shaft (3) of each electromagnet operates. Attach the halved float set device (6) with a circular-sui-shaped hole between the tips of the guide rods and the shaft (3) of the electromagnetic machine through the springs (7), and support from both sides of the base. (8) (8 ') is erected, the upper end side is continuous, and the supporting arm rods (9) (9') are erected on the upper ends of both columns, and the rolling wheels (10) (10 ') are erected. ) Is attached freely, the wire stopper (11) is fixed in the direction of the lower surface of the center of the rolling wheel, and the pulleys (12) (12 ') are also attached to the lower ends of both columns so that they can be changed vertically. Attach the wire fixing metal fitting (13) to one of the columns, attach the electric connector (14) to the side of the base, and collect the wires from each electromagnetic machine (15). To the electric wire (1
7) is connected to the cable (18) installed at a suitable position in the river to measure the flow rate. In the figure, (19) is a float. (2
0) is the moving operation wire (21), the river (22) is
It shows water.

Next, the operation and effect of the present invention will be described with reference to the accompanying drawings.

The automatic float dropping device of the present invention is configured as described above, and when the device of the present application is used to observe the flow rate of a flooded river, first, the cable (installed at the observation compatible position of the river ( Pulley on the main wire of 18) (10)
(10 ') is hooked and fitted, and the groove of the pulley is closed from the lower surface by the metal fitting (11) for preventing the main wire from coming off. Next, one end of the moving operation wire (20) is fixed to the wire fixing metal fitting. It is fixed to (13), and a wire for moving operation is hooked on the pulleys (12) and (12 ') so as to be guided. A base (1) is provided from an operation panel (16) placed on a cable workbench. ) The electric wire (17) is connected to the electric connector provided on the side surface, and the electric wire (17) is connected to the operation panel from the AC power supply or engine generation, the battery, etc. Are sequentially hung on the wire to prevent the wire from tarmiing, and the long floats or short floats (19) are pushed into each float float set device (6) that is made by splitting the hole into a circle-sui type. And set by the resilience of the spring (7) Pressing the respective float had, and prevents falling outside a predetermined drop location.

At the same time as the preparation for dropping the float is completed as described above,
By moving the moving operation wire (20),
The device of the present application moves accurately in the opposite bank direction and the central direction of the river while being guided by the cable in sequence, and the central position of the flooded river is controlled by the automatic float floater at the predetermined measurement position near both banks. Operation panel at hand position (16)
Operate the switches of the number 1 to the number (eg 1 to 6)
Up to the number), activate the electromagnetic motor (2) at a predetermined position,
It is operated against the resilience of the half of the float set device and the spring (7) to completely open and expand the circular-sui hole.

Therefore, the float (19) that has been sandwiched is completely opened, and at the same time, it falls and flows in a rapid stream,
An observer accurately observes at the observation position on the shore,
When the other floats were dropped, they were observed in the same manner as described above, and because the flow velocity in the central part of the river and the part near both banks were remarkably different, even when the observer observed the flow velocity of the floats, it remained constant. Measure the time (seconds) that the float flows through the section,
The flow velocity and flow rate are observed.

In addition, the flow and depth of the river are significantly different depending on the floor dug / accumulation / wash, weeds, etc., but by using the device of the present application to drop the float, it is safe and suitable for the desired location. The flow velocity and flow rate can be accurately observed depending on the location, and the flow velocity and flow rate can be smoothly observed regardless of the width of the river, regardless of the amount of normal water or when the water level increases. It completely eliminates the danger of time.

In short, the automatic dropping device for the flow rate observation float of the present invention is
A cable that fits the river width is installed, a float dropper is movably attached to the cable, and the floats (19) are set in the float set devices that are configured in each electromagnetic of the dropper. The electric wire is extended from the panel and connected from the rotating wheel, and the operator operates the switch on the control panel at hand.
Make sure that each float floated while operating each electromagnet is dropped and dropped at a predetermined position, and the flow velocity and flow rate of the river can be accurately and extremely easily observed by observing the flow of each float. The device of the present application has a large number of practical effects as described above.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of an automatic dropping device for a flow rate observation float according to an embodiment of the present invention, FIG. 2 is a front view of a float dropper that constitutes a float attachment mechanism, and FIG. 3 is a side view. FIGS. 4 and 5 are reels around which electric wires are wound, FIG. 5 is a front view of an operation panel, and FIG. 6 is a cross-sectional view of a river in which the device of the present application is constructed.

Claims (1)

[Scope of utility model registration request] 1. A plurality of electromagnets are attached to the front and back inside a base, and guide rods are respectively provided on both sides of a hole in which the shaft of each electromagnet operates, and the guide rods are provided between the tips of the guide rods and the electromagnet. Attach a halved float set device with a circular-sui-shaped hole to the shaft via a spring, set up columns from both sides of the base, and continue to the top end, and support arms at the tops of both columns. The rod is erected, the wheel is attached freely, the wire stoppers are fastened in the direction of the lower surface of the center of the wheel, and the pulleys are attached to the lower ends of both columns so that the pulley can be changed up and down. Attaching wire fixing metal fittings to the pillars, attaching electric connectors to the side of the base to collect and connect the wires from each electromagnetic machine, and connect the electric wires from the operation panel to the electric connectors, the river suitable position It is installed on the cable installed in the Automatic dropping device flow rate observed for the float in the rivers.