JPS6128412A - Apparatus for supplying purified water - Google Patents

Abstract

PURPOSE:To provide a water supply apparatus for supplying purified water having proper water supply pressure, by mounting an electromotive pump and a filter body to the downstream side of the connection part to a stopcock. CONSTITUTION:When a stopcock 12 is opened, tap water fills a suction passage 40 and a blade wheel 64. Subsequently, when a switch is closed, the blade wheel 64 is rotated by the driving of an electromotor 60 to start water pumping-up action. Whereupon, tap water is forcibly sucked from the stopcock 12 and receives the energy generated by the blade wheel 64 to receive pressure-up action. Inflow tap water rises through the cartridge arranged in a chamber 90 so as to form a vortex stream to be converted to purified water from which sand, foreign matters or bleaching powder contained in tap water were removed while purified water is fallen through an emitting inner passage 94 and emitted from a water supply port 96 as high pressure water. As a result, purified water having proper water supply pressure can be supplied.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to the improvement of water supply equipment, and particularly relates to a water supply device that prevents insufficient water pressure at the terminal faucet of a water supply system and improves the quality of drinking water. .

[Background of the invention]

Figure 10 is particularly seen in export markets. This is an example of residential water supply equipment. In these markets, the rapid expansion of housing construction into the suburbs is outpacing municipal water installations.
Water supply equipment as shown in FIG. 10 is installed in general houses. A water storage tank 2 is provided in the basement of the second- and third-story houses, and water supplied from a water tank 6 of a water truck 4 is stored therein.

The water in the water tank 2 is stored in a water tank 10 installed on the roof by a pump 8 installed outdoors (for example, a JIS B 8314 Ir electric well pump for shallow wells), and is sent to each floor using a gravity flow method. has been done. However, in such facilities, as is often explained by citing Pascal's principle, floors near the roof (in Figure 1)
(e.g., the third floor above ground), the water head difference between the water tank 10 and the faucet 12 is small, and the water supply pressure at the faucet 12 is likely to be insufficient.

In particular, when the faucet 12 is far from the aquarium 10 or when a large number of faucets 12 are installed, pipe resistance increases and water tends to flow poorly. Therefore.

It is often difficult to use equipment that requires a certain level of water supply pressure for smooth operation, such as gas water heaters and fully automatic washing machines. received a request from the market to develop water supply pressure compensation equipment.

Therefore, the inventors proposed increasing the height of the rooftop aquarium 10 (for example, installing it approximately 10 meters above the rooftop), but it was pointed out that the equipment cost would be high. . We also proposed installing a large pump (such as the aforementioned "Electric Well Pump J for Shallow Wells") on the rooftop.However,
Particularly in the Middle East market, due to frequent sandstorms, sand can get inside the electric motor and cause it to lock up, and direct sunlight can cause a significant temperature rise, making it unreliable for water supply equipment that supplies domestic water. However, it did not meet market demands from a gender perspective.

In addition, it is easy for foreign substances such as sand to get mixed into the water storage tank 2, etc., and there is a demand for a water purifier that can be connected directly to a faucet.Therefore, it is desirable to develop a device that can be connected directly to a faucet and that satisfies these market demands and is easy to handle. It was rare.

[Object of the Invention] An object of the present invention is to solve the drawbacks of the conventional water supply equipment described above and to provide a water supply device that supplies clean water with an appropriate water supply pressure.

[Summary of the invention]

The present invention is characterized by comprising a connection part to a faucet, and an electric pump and a filter body downstream of this connection part, which forcibly sucks water from the faucet, purifies it with the filter body, and supplies water. There is a purification water supply system.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a water supply device 2 that is directly connected to a faucet according to an embodiment of the present invention.
0, and an electric pump, which will be described later, is built into the main body 22. A power cord 24 is drawn out from the top surface of the main body 22 and connected to a power source 30 via a voltage regulator 28 such as a voltage drop transformer having a built-in manual on/off switch 26 . This voltage regulator 28 converts a high power supply voltage (for example, 100V or 220V, etc.) to a -low voltage (for example, 14V, etc.), and supplies electricity to the electric pump via the switch 26. This prevents electric shock accidents due to deterioration of electrical insulation and ensures safety. The main body 22 is located at the tip 1 of the faucet 12.
4, and the connecting portion 32 and the main body 22.
and a communication section 34 that connects the two.

FIG. 2 shows a partial cross section of the connecting portion 32. As shown in FIG.

An annular sealing body 36 made of one elastic member is sealed on the upper side of the connecting portion 32, and the lower surface of the tip 14 of the water faucet 12 abuts on the upper surface. A suction passage 40 and a discharge passage 4 are provided in the communication portion 34.
2, and one end of this suction passage 40 communicates with the water faucet 12 through the upper opening 38 of the connecting portion 32.

As shown in FIG. 3, the configuration of the connection part 32 is as follows.
An annular projection 15 is provided on the outer periphery of the tip 14, and a cylindrical cap nut 50 with a flanges is engaged with the faucet 12 and prevented from coming off via a horseshoe-shaped stopper 16 that engages therewith. will be carried out. Furthermore, a male thread 44 formed on the outer periphery of the upper opening 38 is screwed into the female thread 52 of the cap nut 50 .

What is the inner diameter of the eaves '54 provided at the upper end of the cap nut 50?

It is slightly larger than the annular projection 15.

Here, when the nut 50 is tightened, the connection portion 32
is pulled up toward the faucet 12, the sealing body 36 is compressed, and the seal between the faucet 12 and the upper opening 38 is maintained.

As shown in FIG. 4, which represents the IV-IV cross section of FIG.

A commutator type electric motor 60 is built into the main body 22 of the water supply device 20, and an impeller 64 is press-fitted into the lower end of a rotating shaft 62 that hangs downward. The suction lower 4 of the impeller 64 communicates with the suction passage 40 .

It communicates with the faucet 12 via this suction passage 40 .

The electric motor 60 is watertightly covered by an inner cylinder 66 and an inner cover 68, each having a cylindrical shape with a bottom. An annular backing 70 is sandwiched between the inner cylinder 66 and the inner lid 68 to maintain watertightness. A recess 67 is formed in the lower surface of the inner cylinder 66, and a shaft sealing device 72 (for example, a mechanical seal specified in JIS B2405) is installed between the recess 67 and the rotating shaft 62 to seal the inside of the electric motor 60. prevents water from entering. An outer cylinder 76 having a bottomed cylindrical shape is placed on the outside of the inner cylinder 66, and the lower surface of the outer cylinder 76 is brought into contact with the upper surface edge 80 of the communication portion 34 via an annular backing 78, and the upper surface edge An annular nut 82 is screwed into a male threaded portion formed on the outer periphery of the portion 80. Moreover, the upper surface of the cold protection 68 and the outer cylinder 76
An annular backing 8 made of an elastic material is placed between the ceiling surface of the
4 are held in a watertight manner.

An elastic body 86 is attached to the periphery of the power cord 24 passing through the cold insulation 68, and a cap 88 is placed over the power cord 24 to keep the outlet portion of the power cord 24 watertight.

Inside the annular chamber 90 formed around the inner cylinder 66,
A cartridge 92 containing a filter body 91 such as activated carbon or a filter is attached therein. This cartridge 9
2 is provided with an inlet 93 on the lower surface and an outlet 95 on the upper surface.

Further, as shown in FIG. 5 showing the v--■ cross section of FIG. 2, the cartridge 92 is provided with a vertical discharge passage 94 penetrating from the upper surface to the lower surface.

A discharge inner passage 94 that opens at the upper part of the chamber 90 communicates with the discharge passage 42 at the bottom and a water supply port 96 that opens near the faucet 12 .

Further, the openings of the suction passage 40 and the discharge passage 42 are watertightly closed by a removable lid 108 via an elastic backing 106.

Next, the action and effect will be explained. In FIG. 4, when the faucet 12 is first opened, tap water flows into the upper opening 38 of the connection part 32.
The liquid flows into the suction passage 40 from there and fills the suction passage 401 and the impeller 64. By making the upper end (inflow port) of the discharge inner passage 94 higher than the impeller 64, the amount of water necessary for pumping operation can be secured.

Next, when the switch 26 is turned on, the impeller 64 is rotated by the drive of the electric motor 60, and the pumping action is started. Then, tap water is forcibly drawn from the faucet 12 and the impeller 64
It is given energy and a pressurizing effect is performed. The inflowing tap water becomes a whirlpool flow and rises in the cartridge 92 installed in the chamber 90, becomes purified water from which foreign substances such as sand and limescale contained in the tap water are removed, and is discharged. The water descends through the inner path 94 and is discharged from the water supply port 94 as high-pressure water.

Therefore, even if the tap water pressure is not sufficient, high-pressure water can be obtained by operating the water supply device 20.

As mentioned in the explanation of conventional water supply equipment, even if foreign matter such as sand is contained in tap water, it is removed by the filter 91, and water pressure compensation also has a purification function that can solve the water pressure shortage of the conventional equipment mentioned above. It can be a device.

During pumping operation, the electric motor 60 is cooled by pumped water through the inner cylinder 66, so parts such as the inner cylinder 66 do not reach high temperatures, and each part can be easily made of synthetic resin. Ru. Therefore, it is possible to improve the corrosion resistance and reduce the weight of the water supply device 20.
This provides practical effects in ensuring workability and long-term sealing performance when directly attached to the faucet 12, and in particular ensuring reliability in corrosion resistance as a device for use with tap water containing chlorine.

In addition, even if air gets mixed into the pumped water due to poor sealing at the piping connection part, or if air remains in the suction passage 40, the chamber 90
Due to self-priming operation due to water accumulation inside.

Since the air is mixed with the discharged water and discharged, there is no longer a long period of idle operation. Furthermore, since the interior of the chamber 90 is filled with water during operation, this water has the effect of shielding the operating sound of the electric motor 60, resulting in quiet operation.

Furthermore, if the water in the water tank 10 runs out, the faucet 12
The water supply device 20 is in an idle state without being supplied with water, but in this case, the water above the outlet 92 of the cartridge 92 in the chamber 90 passes through the discharge inner passage 94 to the water supply port. It flows out from 96.

Therefore, the operating sound of the electric motor 60 is transmitted from the chamber 90 to the outer cylinder.

76 and is transmitted to the outside of the water supply device 20, or leaks from the empty discharge inner passage 94 to the outside through the water supply port 96, so that the user can be informed that the operation has become idle due to the increased operating noise. It is easy to understand and the operation can be stopped.

Note that even if this state continues for a while, the water remaining in the chamber 90 cools the electric motor 60, so that problems such as burning out of the electric motor 60 in a short period of time can be prevented.

Furthermore, since the water supply device 20 is directly connected to the faucet 12, space can be used effectively even in a small kitchen.

In particular, since it can be installed indoors, problems caused by strong direct sunlight and sandstorms, which are concerns when installed outdoors, as mentioned in the description of the prior art, can be prevented.

Further, the voltage supplied to the water supply device 20 is controlled by the voltage regulator 2
8, so even if electrical insulation deteriorates, safety is maintained. In particular, it can be made into an extremely reliable electrical device for use in places with a lot of water or humidity, such as kitchens and bathtubs.

Furthermore, if the water supply device 20 is not used for a long period of time, the water supply device 20 can be removed by removing the lid 108.
Since the remaining water inside and in the faucet 12 can be drained, there is no problem such as the water inside freezing during the cold season.

Furthermore, by providing the water supply port 96 near the faucet 20, water is supplied as if high-pressure water flows directly from the faucet 20, which is not only convenient for cooking, but also convenient for the faucet 20. 20 There is no need to change surrounding equipment (for example, make the sink larger).

Furthermore, the main body 22 of the water supply device is
Because most of it is located above.

The space around the faucet (especially the space below) required to install the water supply system will also be reduced. I can do things. In addition, the sink (or the surface of the water stored in the sink) that is generally installed close to the bottom of the faucet 2o, and the main body 22 of the water supply device 20
(Rechargeable parts such as the electric motor 60) can be separated from each other, which has a remarkable effect on ensuring safety.

〔Effect of the invention〕

As described above using one embodiment, by carrying out the present invention, both the water pressure shortage and the purification function are especially provided for the water supply equipment. A highly functional faucet purification water supply device can be provided, and remarkable practical effects can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a sketch of a purifying water supply device for faucets showing an embodiment of the present invention, Fig. 2 is a partial sectional view of the connection part of the water supply device of Fig. 1, and Fig. 3 is a diagram of the connection part of the water supply device of Fig. 1. A configuration diagram, FIG. 4 is a cross-sectional view taken along IV-IV in FIG. 2, and FIG. 5 is a cross-sectional view taken along line V-Y in FIG.
FIG. 6 is a simplified diagram of a small-scale house showing a conventional water supply system. 12...j) (stop, 2o...water supply device, 22...main body, 32...connection part, 34...communication part, 40...
Suction passage, 42...Discharge passage, 48...Cylinder body, 60...
・Electric motor, 64... Impeller, 66... Inner cylinder, 74.
... Suction port, 7G... Outer cylinder, 90... Chamber, 91...
・Rochu body, 94... Discharge inner path, 96... Water supply port

Claims (1)

[Claims] 1. A connection part to a faucet and an electric pump and a filter are provided downstream of this connection part, and the water is forcibly sucked from the faucet, purified by the filter, and then supplied. purification water supply equipment.