JPS60258337A - Water feeder for water stopcock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a water supply device for a faucet, and in particular, a water supply for a faucet suitable for compensating for a lack of water pressure at the end faucet of a water supply system. It is related to the device.

[Background of the invention]

As a conventional residential water supply system, a water tank 2 is installed in the basement of a 2nd or 3rd floor house, water is supplied from a water tank 6 of a water tank 4 and stored, and the water in this water tank 2 is pumped outdoors. 8(
For example, there is a JIS B 8314 "Electric Well Pump for Shallow Wells" that stores water in a water tank IO installed on the roof and sends water from this tank IO to each floor using a gravity flow method.However, with such equipment, As is often explained by citing Pascal's principle, the wr (
1), the water head difference between the water tank 10 and the faucet 12 is small, and the water supply pressure at the faucet 12 tends 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 has often become difficult to use devices that require a certain level of water supply pressure for smooth operation, such as gas water heaters and fully automatic washing machines.

[Purpose of the invention]

An object of the present invention is to provide a water supply device for a faucet that can compensate for insufficient water supply pressure from a faucet, allows high water pressure to flow out from below the faucet, and is convenient to handle.

[Summary of the invention]

The present invention provides an impeller driven by an electric motor, a connection portion for connecting a suction path provided on the suction side of the impeller to a faucet, a discharge path provided on the discharge side of the impeller, and a connection portion for connecting the suction path provided on the suction side of the impeller to a faucet. The water supply device for a faucet is characterized by comprising a water supply port that opens a channel near the faucet.

[Embodiments of the invention]

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

FIG. 2 is a sketch of a water supply device 20 that is directly connected to a faucet.
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 has a high supply voltage (e.g. 1
00V, 220v, etc.) to low voltage (e.g. 14V)
etc.) and supplies electricity to the electric pump via the switch 26, which prevents electric shock accidents due to a drop in electrical resistance and insulation and ensures safety.

The main body 22 is provided with a communicating portion 34 that connects directly to the tip 14 of the faucet 12 .

FIG. 3 shows a cross section of the connecting portion 32. As shown in FIG. Connection part 32
An annular sealing body 36 made of an elastic member is sealed to the upper part of the faucet 12, and the lower surface of the tip 114 of the water faucet 12 comes into contact with the upper surface. The interior of the communication portion 34 is divided into two parts, and a suction passage 40 and a discharge passage 42 are provided side by side. One end of the suction passage 40 communicates with the water faucet 12 via the upper opening 38 of the connecting portion 32 .

A flanged cylindrical body 48 is fixed to the tip 14 of the faucet 12 by a set screw 46. In addition, the connection portion 3
A male thread 44 is formed on the outer periphery of 2, and this male thread 4
A female thread 52 of a nut 50 is screwed into the nut 50. This nut 5
0 is provided with an eaves portion 54 having a smaller diameter than the female thread 52.
is provided, and this eave portion 54 engages with a flange portion 56 of the cylindrical body 48. Here, when the nut 50 is tightened, the communication portion 34 of the main body 22 is pulled up toward the faucet 12, the sealing body 36 is compressed, and the sealing property between the faucet 12 and the upper opening 38 is maintained. .

On the other hand, the discharge passage 42 opens downward directly below the water faucet 12.

FIG. 4 shows the It/=IV cross section of FIG. 3. A commutator type electric motor 60 is built into the main body 22 of the water supply device 20, and an impeller 6 is installed at the lower end of a rotating shaft 62 that hangs downward.
4 is press-fitted. The electric motor 60 has a bottomed cylindrical inner cylinder 6.
6 and an inner lid 68 in a watertight manner. The inner cylinder 66
An annular backing 70 is sandwiched between the inner cover 68 and the inner cover 68 to maintain watertightness. A recess 67 is provided on the lower surface of the inner cylinder 66.
is formed, and a shaft sealing device 72 (for example, a mechanical seal specified in JIS B 2405) is installed between the recess 67 and the rotating shaft 62 to prevent water from entering the electric motor 60. are doing. 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. An annular nut 82 is screwed into a male threaded portion formed on the outer periphery of the upper surface edge portion 80.

Further, an annular backing 84 made of an elastic body is held between the upper surface of the inner lid 68 and the ceiling surface of the outer cylinder 76 in a watertight manner.

An elastic body 86 is attached to the periphery of the power cord 24 passing through the inner lid 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 cylindrical body 92 is attached and a discharge inner passage 94 is provided vertically.

Above this cylindrical body 92, a lip-shaped projection 95 is formed on the inner surface of the outer cylinder 76, and this protrusion 95 prevents the cylindrical body 92 from slipping upward and rectifies the discharged water.
Prevent vibration.

As shown in FIG. 4 and FIG. 5, which is a cross-sectional view taken along the line ■-■ in FIG. Connects to 12.

FIG. 6 shows a cross section taken along the line -■ in FIG. 3, and shows the state of communication between the internal discharge passage 94 and the discharge passage 42. As shown in FIG.

The internal discharge passage 94 that opens at the upper part of the chamber 90 communicates with the discharge passage 42 at the bottom. Furthermore, the faucet 1
2, the 7 discharge passage 42 is provided with a water supply port 96 that opens downward.

The mutual sealing effect between the suction passage 40, the discharge passage 42, and the outside air is performed by a lid 108 attached to the communication portion 34 via a sealing material 106 such as an elastic member.

In addition, Fig. 6 and Fig. 7 representing the ■-■ cross section of Fig. 6 are shown.
As shown in the figure, a communication port 98 that opens into the chamber 90 is provided in the middle of the internal discharge path 94 . The communication port 98 is located lower than the upper end of the discharge inner passage 94 and higher than the impeller 64. Further, part or all of the electric motor 60 may be provided so as to be located below the communication port 98.

FIG. 8 shows a cross section taken along line 1 in FIG. 6.

A vortex chamber 102 is formed around the impeller 64 and communicates with the chamber 90 from a vortex chamber outlet 104. The chamber 90 is provided outside the entire circumference of the inner cylinder 66.

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.
Flows into the suction passage 40 from the suction passage 401 and the impeller 6
The fourth chamber 102 is filled with the liquid.

Next, water also flows into the chamber 90, but since the cylindrical body 92 is provided with the communication port 98 as shown in FIG. flows down from the communication port 98 into the discharge path 42 and flows out from the water supply port 96 below. Therefore, if the tap water pressure is low, it will take a considerable amount of time for the entire chamber 90 to be filled with water, but the minimum amount of water necessary for operating the pump, the height of the sump, and the height of the communication port 98 will be sufficient. A water level up to a certain level can be secured in a short period of time by only gravity flowing from the faucet 12. Here, the position of the communication port 98 may be appropriately selected according to the height of the faucet 12 (dotted chain line B) in FIG. If the dot-dash line B) is lowered, it will take less time to secure the amount of water necessary for operation. Also, communication port 9
Alternatively, if the upper end (inflow port) of the discharge inner passage 94 is made higher than the swirl chamber 102, the amount of water necessary for pumping operation can be secured.

Also, it can be easily confirmed that the required amount of water has been secured by checking the water flowing out from the water supply port. Therefore, problems such as dry operation with no water in the impeller 64 can be avoided.

Next, when the switch 26 is turned on, the L-shape impeller 64 is rotated by the drive of the electric motor 60, and water pumping action is started. Then, tap water is forcibly drawn from the faucet 12 and the impeller 64
is given energy and discharged into the vortex chamber 102, at the same time a pressure increasing action is performed. The inflowing pressurized water becomes a vortex flow and rises in the chamber 90, descends through the discharge inner passage 94, passes through the discharge passage 42, and is supplied as high pressure water from the water supply port 94. Therefore, even if the tap water pressure is not sufficient, high-pressure water can be obtained by operating the water supply device 20, and it can be used as a water pressure compensation device that can solve the lack of water pressure in the conventional equipment.

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. Follow me? This makes it possible to improve the corrosion resistance and reduce the weight of the water supply device 20, ensuring workability and long-term sealing when directly attached to the faucet 12, and ensuring corrosion resistance and reliability especially as equipment for tap water containing chlorine. It provides practical effects.

In addition, 1. If air 2>1 gets mixed into the pumped water due to poor sealing of the piping, even if air remains in the suction passage 40,
Due to the self-priming operation effect due to water accumulation within zero, air is mixed with the discharged water and discharged, so there is no longer a long period of idle operation. In addition, 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.
Quiet driving power! It is done.

Furthermore, if the water in the water tank 10 runs out, the faucet 12
The water supply device 20 is in a state of dry operation because no water is supplied from the chamber 90, but in this case, water in the chamber 90 above the communication port 98 flows out from the communication port 98 into the discharge inner passage 94. However, the water level drops to the position of the person in Figure 6. Therefore, the operating sound of the electric motor 60 is transmitted from the chamber 90 through the outer cylinder 76 to the outside of the water supply device 20, and the sound is transmitted from the empty discharge inner passage 94 to the discharge passage 42, and from the empty discharge inner passage 94 to the water supply port 96.・Since it leaks to the outside,
The user can easily notice that the vehicle is running idle.

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.

In addition, if foreign matter such as wood chips gets into the water tank 10 and flows into the water supply device 20 along with the pumped water, and even if the upper end entrance of the discharge inner passage 94 is blocked, a small amount of water will leak from the communication port 98, so that the shut-off operation is not possible. Therefore, abnormal rises in temperature and pressure within the water supply device 20 can be prevented.

In the embodiment, the communication port 96 is a hole, but it may be in the shape of a notch extending downward from the upper end of the cylindrical body 92.

Furthermore, since it 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.

In addition, if the water supply device 2o is not used for a long period of time, the water supply device 2o can be removed by removing the lid 108.
Since the remaining water inside and in the faucet 12 can be drained, there are no sanitary problems such as spoilage of the water inside.

In addition, by providing the water supply port 96 directly below the faucet 20, water is supplied as if high-pressure water flows directly from the faucet 20, which is convenient for cooking. Moreover, there is no need to change the equipment around the faucet 2o (for example, make the sink larger).

In addition, the tip 14 of the faucet 20 is also connected to the main body 22 of the water supply device.
Most of the faucet is located above, so there is no surface area around the faucet that is necessary for installing the water supply system (specially the surface area around the faucet).

The space below K) can also be made smaller. In addition, it is generally not possible to separate the tank (or the surface of the water stored in the sink), which is installed close to the bottom of the faucet 20, from the main body 22 (charged parts such as the electric motor 60) of the water supply device 20. This has a significant effect on ensuring safety.

〔Effect of the invention〕

According to the present invention, it is possible to provide a water supply device for a faucet that can compensate for the water supply pressure from the faucet and allows high-pressure water to flow out from the water orange portion, making it easy to handle.

[Brief explanation of the drawing]

Fig. 1 is a simplified diagram of a small-scale house showing a conventional water supply form, and Fig. 2 is a perspective view of a water supply device showing an embodiment of the present invention.
The figure is a partial cross-sectional view of the connection part in Figure 3, Figure 4 is a cross-sectional view taken along the line ■-■ in Figure 3, Figure 5 is a cross-sectional view taken along v-■ in Figure 4, and Figure 6 is a cross-sectional view taken along the line v--■ in Figure 3. ■-VT sectional view, FIG. 7 is a ■--■ sectional view of FIG. 6, and FIG. 8 is a ■--■ sectional view of FIG. 6. 12... Faucet, 2o... Water supply device, 22...Main body, 32...Connection part, 34...Communication part, 40...Suction path, 42...Discharge path, 60...Electric motor, 64...
・Blade -, 66...Inner cylinder, 74...Suction port, 76・
... Outer cylinder, 9o... Chamber, 94... Discharge inner path, 96.
...Water supply port, 98...Communication port, 1o. ...Top end, 106... Sealing body, 1o8... Lid body. Agent Patent Attorney Akio Takahashi 8zffJ Edition 4th “V v Tsume 7 r Dirt G Super

Claims (1)

[Claims] 1. An impeller driven by an electric motor, a connection part that connects a suction path provided on the suction side of the impeller to a water faucet, a discharge path provided on the discharge side of the impeller, and a connection part that connects the suction path provided on the suction side of the impeller to the water faucet. A water supply device for a faucet, characterized by comprising a water supply port that opens near the faucet.