JPH02117329A - Foaming tool - Google Patents

Abstract

PURPOSE:To enable formation of a foaming tool capable of ensuring a wide foaming area for blowing air into a nutrient solution in a water culture apparatus for normal household use with high usability by providing a construction in which a foaming plate equipped with an air feed port and a weight plate are detachably fixed in a case. CONSTITUTION:A foaming plate 2 constructed by superposing a nonwoven fabric 6 on a resin plate 5 and hermetically sealing all the peripheral part other than an air feed port and a weight plate 3 consisting of a material, such as stainless steel, having a higher specific gravity than that of water are contained in a case 1, which is provided with engaging pawl parts 4, constructed from plural cuts and having elasticity in the outer peripheral wall part thereof. The foaming plate 2 and weight plate 3 are detachably fixed with the engaging pawl parts 4 in the case 1. Even if the foaming plate causes trouble, such as clogging, in the above-mentioned foaming tool, only the foaming plate can be readily exchanged.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a foaming device used for blowing air into a nutrient solution to supply oxygen in a general household hydroponic cultivation apparatus.

Conventional technology Conventional foamers for hydroponic cultivation equipment used in general households, etc.
As shown in Fig. 6, the plastic pipe 11
A molded article 12 made of sand grains was used so as to wrap around the tip of the tip.

Although some commercial aeration tanks use plastic sintered plates, they are too expensive and are not used in the hydroponic cultivation equipment for general household use.

Problems to be Solved by the Invention The above-mentioned conventional foaming device uses molded sand grains, which have a higher specific gravity than water, in the foaming section, so it has the advantage that the foam itself does not lift up during foaming. Its shape was limited to a sphere or a rod, and it could not be made into a plate. The purpose of the foamer in a hydroponic culture device is to make the bubbles as small as possible and spread the foam over as wide an area as possible so that the blown air can be dissolved into the nutrient solution as much as possible. However, although the conventional foaming device can produce small foams, it is difficult to foam a large area due to its structure.

The present invention aims to solve the above-mentioned problems of conventional foamers and to provide a foamer with higher usability.

Means for Solving the Problems The foaming device of the present invention for hydroponic cultivation equipment used in general households, etc. is made by overlapping plastic plates and a breathable membrane such as non-woven fabric, and sealing all the peripheral parts except the air inlet. The case has a built-in foam board and a weight board made of a material such as stainless steel that has a specific gravity higher than that of water. An elastic locking pawl formed of a notch K is provided, and the foam plate and the weight plate are removably fixed by the locking pawl.

Function: Since the foam plate used in the foamer according to the present invention is composed of a resin plate and an air-permeable membrane such as a nonwoven fabric, its shape is free and a wide foaming area can be easily secured.

In addition, since a weight plate made of nutless steel is set in the case together with the foam board, the foam device will not float up during foaming.

Furthermore, the foam plate and weight plate are removably fixed inside the case by elastic claws provided on the outer peripheral wall of the case, so even if the foam plate causes problems such as clogging, the foam plate Only can be easily replaced. Therefore, foaming over a wide area can be carried out freely without using expensive resin sintered plates such as those used in commercial aeration tanks.

EXAMPLES Hereinafter, examples of the present invention will be described using FIGS. 1 to 4.

In the figure, a foam board 2 and a weight board 3 are built in a case 1 in an overlapping manner. The outer peripheral wall of the case 1 is provided with an elastic locking claw part 4 formed by providing a notch in the outer peripheral wall, and the foam plate 2 and the weight plate 3 can be attached and detached by this claw part 4. is fixed.

The foam board 2 is composed of a resin board 6 having an air inlet and a breathable non-woven fabric 6, and the resin board 5 and the non-woven fabric 6 form a bag-like shape whose periphery is hermetically sealed by welding. ing.

The foam board 2 can therefore be easily formed into any shape and large area.

The weight plate 3 is made of a nutless steel plate, and has a specific gravity approximately 8 times that of water, so that a volume of approximately % of the volume of the gas phase portion of the foam plate 2 is sufficient to perform its function.

When the nonwoven fabric of the foam board 2 becomes clogged and the foaming condition deteriorates, it is sufficient to remove only the foam board 2 and replace it with a new one. The foam board 2 is made of a resin board and a non-woven fabric and can be made at a very low cost, so it can be easily used disposable without any heavy economic burden.

Effects of the Invention As described above, the foaming device according to the present invention has very useful effects in that the shape of the foaming part can be freely formed and a wide foaming area can be easily formed.

In addition, even if the foaming section develops a problem such as clogging, it can be easily returned to its initial state by replacing only the foaming board, and the foaming board can be easily replaced.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a foamer showing an embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is an external perspective view of a foam board, and FIG.
1 is a sectional view of a conventional foamer for a hydroponic cultivation apparatus used in general households. 1... Case, 2... Foam board, 3...
...Weight plate, 4...Claw part, 6...
Resin plate, 6...Nonwoven fabric. Name of agent: Patent attorney Shigetaka Awano and one other person

Claims (1)

[Claims] This foamed material has a built-in foam board made of a resin board and a non-woven fabric layered together and hermetically sealed all the peripheral parts except for the air inlet, and a weight board made of a material with a specific gravity greater than that of water, such as stainless steel. The case for housing the board and the weight board is provided with elastic locking claws made up of a plurality of notches on its outer peripheral wall, and the locking claws allow the foam board and the weight board to be attached to each other. A foaming machine with removably fixed plates.