JPS6240717Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for mixing an amount of a chemical solution into the water supply in accordance with the amount of water supplied in a water supply system such as a simple water supply system that supplies water by adding a chemical solution to water in an aquarium.

Water tanks for water supply systems such as simple water supply systems are often installed in remote mountainous areas where there is no commercial power supply. Therefore, if the chemical liquid mixing device attached to the water tank of the water supply system is an electric type, it will require a power source, and if a commercial power source is used as the power source, it will be expensive and time consuming to install a commercial power source, and the power source will be When using batteries, it takes time and effort to periodically replace the batteries.

An object of the present invention is to provide a mechanical liquid drug mixing device that does not require the above-mentioned cost and labor.

This invention is equipped with a chemical solution supply device that supplies a minute amount of chemical solution by rotating a drive shaft, and a metering and mixing chamber that has an inlet communicating with the water tank and an outlet connected to a water supply pipe is provided in the water tank. An impeller is provided which is rotated by the water passing through the inlet of the chamber, and the rotating shaft of the impeller is connected to the drive shaft of a small amount of chemical supply device, and the supply port of the small amount of chemical solution supply device is connected to the chemical solution port formed in the metering and mixing chamber. This is a chemical liquid mixing device in a water supply system, which is characterized by being connected.

In the device of the present invention, the impeller is rotated by the water flowing from the water tank into the water supply pipe through the metering and mixing chamber, and the rotating impeller drives the chemical solution micro-volume supply device. A chemical solution is supplied from the metering and mixing chamber to the metering and mixing chamber, and an amount of the chemical solution corresponding to the amount of water to be supplied is mixed with the water supply in the metering and mixing chamber. Therefore, the device of the present invention is a mechanical type in which an impeller rotated by the water supply drives the small amount of chemical supply device, so it does not require a power source, and it saves the cost and effort of installing a commercial power source and the regular use of batteries. No need to worry about replacing it.

In addition, the chemical solution is supplied to the metering and mixing chamber where the pressure becomes negative.
The chemical solution micro-amount supply device uses a rotating type that supplies a small amount of chemical solution by rotating the drive shaft, and since the drive shaft is rotated by an impeller, a reciprocating pump is used to pressurize the chemical solution into the water supply pipe. The pump is driven reciprocally by the rotation of the impeller, so it has a simpler structure than a hydraulically driven reciprocating device or a type equipped with a switching valve. guaranteed supply.

In addition, since the measuring and mixing chamber is installed inside the water tank,
It is easier to install it into an existing water tank with a water supply pipe than when installing it outside the water tank.

Next, embodiments of the present invention will be described.

As schematically shown in the drawing, the water supply system equipped with the chemical liquid mixing device of this example is provided with an intake port 2 on one side of a box-shaped water tank 1 to take in natural flowing water or water that has been filtered from natural flowing water. A water supply pipe connection hole 3 is provided at the lower end of the other side of the water tank 1, an overflow port 4 is provided at the upper end through which water exceeding a certain water level flows out, and a box-shaped measuring and mixing chamber 5 is provided at the bottom of the water tank 1. An inlet 6 communicating with the water tank 1 is formed in the ceiling of the metering and mixing chamber 5, and an outlet 7 is formed in the side wall of the metering and mixing chamber 5.
A water-diameter chemical solution port 8 is formed in the ceiling of the tank. One end of the water supply pipe 9 fitted into the water supply pipe connection hole 3 of the water tank and the outlet 7 of the metering and mixing chamber are connected by a connecting pipe 10.
A cylindrical case 11 is fitted into the inlet 6 of the metering and mixing chamber, and the case 1 penetrates through the ceiling of the metering and mixing chamber 5.
1, an axial flow type impeller 12 having a plurality of spirally curved blades is supported with its rotating shaft 13 aligned with the axis of the cylindrical case. A plurality of slit-shaped inlets 14 are formed on the circumferential surface of the upper part of the case 11 that is located above and protrudes into the water tank 1, and a plurality of outlets 15 are formed on the lower end surface of the case 11 that protrudes into the metering and mixing chamber 5. An impeller 12 is arranged at the inlet 6 of the metering and mixing chamber so as to be rotated by the water passing through the inlet at a rotational speed proportional to the flow rate of the water. It has a built-in speed reducer 16, and the rotation shaft 13 of the impeller.
The input shaft of the reducer 16 is connected to the reducer 16, and one end of a flexible wire 18, which is loosely fitted and inserted into the flexible tube 17, is connected to the output shaft of the reducer 16. The chemical liquid trace amount supply device 19 provided above the water tank 1 has a chemical liquid tank 20 and a saucer tank 22 arranged side by side with a partition wall 21 in between, and both tanks 20, 2.
A sealed chemical solution replenishment tank 24 is provided above the chemical solution replenishment tank 2, and the chemical solution flow down pipe 2 has an upper end connected to the lower end of the chemical solution replenishment tank 24.
The lower end opening of the chemical liquid flow pipe 26 is arranged in the chemical liquid tank 20, and the liquid level of the sterilizing chemical liquid such as chlorine water in the chemical liquid tank 20 is automatically maintained at a constant height in contact with the lower end opening of the chemical liquid flow pipe 26. A U is placed on the upper end of the partition wall 21.
A lever 28 is provided at the center of the scooping gutter 27 having a shaped cross section,
The closed scooping end of the scooping gutter 27 is placed above the chemical tank 20, and the open discharge end of the scooping gutter 27 is placed above the saucer tank 22, and the scooping gutter 27 is driven upward. A shaft 29 is pivotally supported, and a crank rod 30 is attached to the drive shaft 29.
The other end of the connecting rod 31, which has one end pivotally supported on the tip of the crank rod 30, is attached to the lever support 2 of the scooping gutter 27.
The rotation of the drive shaft 29 drives the crank mechanisms 30 and 31 to reciprocate and rotate the scooping gutter 27 within a certain range from the horizontal position. When the scooping end 27 rotates within the chemical solution in the chemical tank 20, a certain minute amount of the chemical solution is scooped into the scooping gutter 27 with the scooping end, and when the discharge end of the scooping gutter 27 descends. Then, the chemical liquid in the scooping gutter 27 is dripped from the discharge end into the saucer tank 22, and a fixed amount of the chemical liquid is dripped into the saucer tank 22 at time intervals inversely proportional to the rotation speed of the drive shaft 29. The device is configured so that an amount of the chemical solution proportional to the rotational speed of the drive shaft 29 drops into the saucer tank 22. Drive shaft 2 of chemical liquid micro-supply device
9 is connected to the other end of the flexible wire 18 whose one end is connected to the impeller 12 via the reducer 16,
On the other hand, a supply pipe 23 of a small amount supply device for chemical solution connected to the saucer tank 22 is suspended into the water tank 1, and a supply port at the lower end of the supply pipe 23 is connected to the drug solution port 8 of the metering and mixing chamber. In addition, in the figure, 25 is a chemical solution port with an on-off valve provided at the upper end of the chemical solution replenishment tank 24.

In the water supply system of this example, natural flowing water or water obtained by filtering natural flowing water flows into the water tank 1 through the intake port 2, water in the water tank 1 flows into the metering and mixing chamber 5 through the inlet 6, The impeller 1 is caused by the water passing through the inlet 6.
2 is rotated at a rotation speed proportional to the flow rate of the water,
Due to the rotation of the impeller 12, the drive shaft 29 of the small amount of chemical solution supply device is rotated through the speed reducer 16 and the flexible wire 18 at a rotation speed reduced by the speed reducer, and the drive shaft 29 of the small amount of chemical solution supply device is rotated at a rotation speed reduced by the speed reducer. The chemical liquid is dropped in small amounts at time intervals inversely proportional to the rotation speed of the drive shaft 29, and the chemical liquid in the saucer tank 22 is distributed between the supply pipe 23 and the chemical liquid port 8.
The chemical liquid and water are mixed in the measuring mixing chamber 5, and the water mixed with the chemical liquid flows into the water supply pipe 9 through the outlet 7 and the connecting pipe 10, and an amount proportional to the water amount is mixed. Water mixed with a chemical solution is supplied to each household through a water supply pipe 9.

When the amount of water flowing into the tank 1 through the intake port 2 is larger than the amount of water flowing out through the metering and mixing chamber 5 and the water supply pipe 9, the water level in the tank 1 rises and the water in the tank flows out from the overflow port 4. However, the chemical solution mixed with water in the metering and mixing chamber 5 flows into the inlet 6 equipped with the impeller 12.
Since there is no situation where the chemical solution flows backward and diffuses close to the water surface of the water tank 1, the chemical solution does not mix into the water flowing out from the overflow port 4.

The chemical liquid mixing device of this example is of a mechanical type in which the impeller 12 rotated by water supply drives the chemical liquid minute supply device 19, and therefore does not require a power source. Also,
Since the chemical solution is supplied to the metering and mixing chamber 5 which has a negative pressure due to water supply, there is no need for a pump to pressurize the chemical solution. Since it is a drive type, the structure is simpler than that of a reciprocating drive type, and the chemical solution is reliably supplied by the rotation of the impeller. In addition, since the measuring and mixing chamber 5 is provided inside the aquarium 1, compared to the case where it is provided outside the aquarium,
Easy to install into existing aquariums with water supply pipes.

The apparatus of the embodiment is as described above and schematically illustrated in the drawings, but it may be modified as illustrated below.

(1) Instead of using a device for reciprocating the scooping gutter 27 in the small amount supplying device for chemical solution, a device for rotating the scooping gutter in one direction as disclosed in Japanese Patent Publication No. 46-5442 is used. Alternatively, an intermittent discharge pump is used, which intermittently discharges small amounts by rotating a drive shaft.

(2) Instead of using the flexible wire 18, a flexible wire rope or a flexible shaft is used as a means for connecting the drive shaft 29 of the small amount of chemical liquid supply device and the rotary shaft 13 of the impeller via the reducer 16.

[Brief explanation of the drawing]

The drawing is a schematic longitudinal sectional view of a water supply system equipped with a chemical liquid mixing device according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Water tank, 5... Measuring and mixing chamber, 6... Inlet, 7... Outlet, 8... Chemical solution port, 9... Water supply pipe, 12... Impeller, 13... Rotating shaft, 16... …
Speed reducer, 18...Flexible wire, 19...Medical liquid minute amount supply device, 23...Supply pipe, 29...Drive shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a chemical liquid mixing device in a water supply system that mixes a chemical liquid into the water supply in an amount corresponding to the amount of water supplied when water is added to water in a water tank and supplied with a chemical liquid, A chemical solution supply device that supplies a small amount of chemical solution by rotation of the water tank is provided, and a metering and mixing chamber that has an inlet communicating with the water tank and an outlet connected to a water supply pipe is provided in the water tank, and water passing through the inlet of the metering and mixing chamber is provided. The present invention is characterized in that an impeller is provided which is rotated by an impeller, a rotating shaft of the impeller is connected to a drive shaft of a small amount of chemical solution supply device, and a supply port of the small amount of chemical solution supply device is connected to a drug solution port formed in the metering and mixing chamber. A device for mixing chemical liquids in water supply equipment. (2) A chemical liquid in a water supply system as set forth in claim 1 of the utility model registration claim, characterized in that a speed reducer is interposed in connecting the rotating shaft of the impeller to the drive shaft of the chemical liquid collecting and supplying device. Admixture device. (3) The scope of claim 1 for registration of a utility model, characterized in that a flexible wire, a flexible wire rope, or a flexible shaft is used as a means for connecting the rotation shaft of the impeller to the drive shaft of the small amount supply device for chemical liquid, or A chemical liquid mixing device in a water supply system according to item 2. (4) Chemical liquid contamination in the water supply system set forth in claim 1, 2, or 3 of the utility model registration claim, characterized in that the water tank is provided with an overflow port through which water exceeding a certain water level flows out. Device.