JPS6042335Y2 - weighing float - Google Patents

Description

[Detailed description of the invention] The present invention relates to the shape of a measuring float in a container for adding a fixed amount of chemical solution into a tank in which the liquid is injected and discharged intermittently. In a container that has the function of causing a certain amount of chemical solution to flow out into the aquarium according to the discharge and inflow of water in the aquarium when installed, a cutout is provided around the upper edge of the float for measuring and collecting a certain amount of the chemical solution. This is intended to facilitate the discharge of the chemical solution and improve the quantitative nature of the amount of liquid collected and discharged by the measuring float.

The structure and function of the measuring float of the container for adding a chemical solution according to the present invention will be specifically explained with reference to the drawings when the container is installed in a water tank.

In FIG. 1, 1 is a container body, 2 is an inner stopper, 3 is a measuring float, and 4 is an outer lid.

The inner stopper 2 has an appropriate gap between its outside and the inner wall 8 of the measuring float chamber 7, and is provided with a protrusion 5 having a small hole 6 at the bottom. They communicate through small holes.

The weighing float 3 is constructed to have enough buoyancy to float as the outside water rises while containing the medicinal solution in its basin 7, and when water flows into the tank, it floats as the water surface rises. When the water in the aquarium is drained, it descends due to gravity and is discharged by the outer cover 4 as required. The lowering position is regulated by the stroke, and the medicinal solution in the container body 1 is measured and received into the chamber 7.

(See Figure 2) The mechanism for regulating the lowering position of the metering float 3 to the required stroke is a mechanism that uses the inner stopper 2 and the metering float 3 as shown in Figures 4 and 5 instead of the outer cover. A hooking mechanism using protrusions 13, 14 provided between each other may also be used.

At this time, the same volume of air as the medicinal solution measured in the basin passes over the upper edge 9 of the measuring float, passes through the gap between the protrusion 5 of the inner stopper and the inner wall 8 of the measuring float, and enters the container body through the small hole 6. flows into.

The present inventor believes that when the upper edge of the measuring float 3 is flat, due to the influence of the surface tension of the chemical, the liquid level of the chemical at the final level of the chemical being discharged from the measuring float is shown in Figure 6. As shown in Figure 7, discharging may stop when the liquid exceeds the upper edge of the wall of the measuring float, or when the liquid is on the top of the wall of the measuring float, as shown in Figure 7. Or, for example, due to vibrations caused by an external water flow, such a bulge may be destroyed and completely discharged, resulting in loss of quantitative determination of the amount of chemical discharged. It has been found that by providing the cutout 10, it is possible to avoid the build-up of the chemical solution around the upper edge of the metering float, and it is possible to improve the quantitative nature of the discharge amount of the chemical solution.

As shown in FIG. 3, the shape of the cutouts 10 may be triangular, square, semicircular, or any other arbitrary shape. It is sufficient to have an appropriate size depending on the viscosity and the like, and to appropriately arrange one or more places around the upper edge.

The measuring float of the present invention needs to have a buoyancy that allows it to float on water when the chamber is filled with a chemical solution, and for this purpose, for example, foamed synthetic resin made of closed cells with low specific gravity may be used as the material. Alternatively, it may preferably have a sealed hollow part of an appropriate size; in this case, suitable materials include synthetic resins such as polyethylene, polypropylene, polystyrene, polyvinyl chloride, etc., and rubbers. ing.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view showing a state in which the container body, inner stopper, measuring float, and outer lid are assembled, and the water in the external water tank rises, the measuring float floats, and the measured chemical solution is discharged. be. FIG. 2 is a longitudinal cross-sectional view showing a state in which the water in the external water tank has been drained, the measuring float has been lowered, the stroke has been regulated by the outer lid, and a certain amount of chemical liquid has been measured. FIG. 3 is a perspective view showing a cutout portion provided around the upper edge of the weighing float. FIGS. 4 and 5 are longitudinal sectional views showing another mechanism for regulating the lowering position of the weighing float 3. FIG. FIG. 6 and FIG. 7 are longitudinal sectional views showing a state in which the chemical liquid is raised or placed on the upper edge periphery when the measuring float of the present invention is not adopted. In each figure, 1 is the container body, 2 is the inner stopper, 3 is the measuring float, 4 is the outer lid, 5 is the inner stopper's convex part, 6 is the small hole in the convex part, 7 is the measuring float's basin, and 8 is the basin. , 9 is the upper edge of the measuring float, 10 is the cutout of the upper edge, 11 is the liquid level of the chemical liquid in the container, 12 is the water surface of the external water tank, and 13 is the surface of the chemical liquid.

Claims (1)

[Scope of utility model registration request] In a measuring float for collecting and discharging a fixed amount of a medicinal solution in an inverted container by moving up and down according to the rise and fall of an external liquid due to buoyancy, the measuring float has a cutout at its upper edge. Characteristic weighing float.