JP3071748U - Sealed water supply - Google Patents

Abstract

[PROBLEMS] To provide a closed type water supply device having many excellent effects, such as being able to save space, reduce production cost, prevent contamination, and realize easy cleaning and energy saving. . A water transmitter having a built-in pump (22) for transferring tap water from a water pipe to a water tank provided on a rooftop through a water pipe (23). A casing that can be installed is provided, a sealable lid is provided at an upper end opening of the casing, and a water supply port and a supply / exhaust port that penetrate a water supply pipe are formed in the cover, and the supply / exhaust port is provided with a pressure inside the water supply device. Supply / exhaust pipes (2
4), a valve (25) is provided at the end of the supply / exhaust pipe, a liquid level sensor (26) for controlling the operation of the pump is provided in the casing, and the outlet of the pump is connected to a water supply port in the lid. It is communicated with the water pipe via

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a closed type water supply device, which can be used for general buildings in particular.It has a simple design that pumps tap water and stores it in a rooftop water tank, saving space and manufacturing. It has many excellent effects such as cost reduction and prevention of pollution, easy cleaning and energy saving.

[0002]

[Prior art and its problems]

 In recent years, the population density has been very high in urban areas, but it is still increasing. As a result, most of the buildings have been raised and somehow surpassed. In such a state, for example, if a person living in an apartment or the like always uses tap water, the water pressure becomes insufficient, and a sufficient amount of water cannot be obtained. In order to solve these shortcomings, most high-rise buildings have a water tank or water storage pool on the roof.

[0003] Because current tap water is usually low in water pressure, it is not possible to pump water and inject it into a rooftop water tank. In addition, the law prohibits the installation of a pump and pumping of tap water directly from a water pipe in order to prevent adverse effects when neighboring residents use tap water.

Further, as shown in FIG. 6, land prices in urban areas are very high, so most of ordinary high-rise buildings have a water supply facility at a connection end with a water pipe at present. The structure of this water supply system is such that a water storage pool is installed in the basement of a high-rise building, a water pipe is connected to the water storage pool, and a ball valve is installed at the water inlet to control the amount of tap water injected. Is done. Thereby, the level of tap water in the water storage pool is controlled. Furthermore, since the water storage pool is provided with a lid plate, the water storage pool can be periodically cleaned, and the safety of water quality can be ensured. In addition, a pump is provided in the water storage pool, and a water pipe connected to the water supply end of the pump is connected to the water tank on the roof, and indirect supply operation (first, water is injected into the water storage pool, and then Tap water is stored in the water tank. By doing so, it is possible to supply tap water to each of the residents on the higher floors, and it is possible to prevent the adverse effects of weak water pressure on neighboring residents.

When the water level in the rooftop water tank reaches the lower limit position during the operation of the water supply equipment, the pump is immediately operated by the limit switch, and the tap water in the storage pool in the basement is drained from the rooftop. When the water level in the water tank reaches the upper limit, the pump is stopped by the limit switch in the water tank. In addition, when the water level in the water tank reaches the upper limit and the pump stops operating, the injection of tap water into the water storage pool is stopped by the ball valve. In addition, since the vent hole is provided in the lid plate of the water storage pool, air can freely flow in and out, and when pumping up tap water, the pressure in the water storage pool can be balanced and the negative pressure can be maintained. Prevent tap water from flowing directly from the water pipe depending on the condition. However, the above-mentioned water supply facilities have the following problems in use. 1. Most of the underground water storage pools used in general high-rise buildings are made of concrete, so the production cost is high, quality control is difficult, and the volume is very large. As a result, the proportion of the water supply equipment in the space used in the basement increases, and the space is wasted. Furthermore, since the connection between the lid plate provided above the storage pool and the storage pool is not perfect, contaminants are likely to enter, and if the basement is flooded due to flooding, the water is discharged into the storage pool. If the water enters and overflows, sewage and pollutants enter the gap between the storage pool and the lid plate, and contaminate the tap water stored in the storage pool. When this happens, all contaminated water in the storage pool must be drained, the storage pool must be thoroughly cleaned, and then fresh water injected. Therefore, not only will water resources be wasted, but also the costs involved in washing will be wasted. 2. When performing water pipe maintenance, there is a risk that contaminants may enter the water pipe. Therefore, when supplying tap water after interruption of water supply, there is a large step between the water pipe buried in the ground and the water storage pool, so that a siphon action occurs and contaminants remaining in the water pipe are generated. It easily flows into the water storage pool and may cause water pollution. 3. The rooftop water tank stores tap water indirectly pumped from the underground storage pool by a pump, and the pump operates when the water level in the storage pool does not reach a certain level. Therefore, when water is stored again after washing the water tank or the storage pool, it takes a considerable amount of time to reach the predetermined water level, and the amount of water used for washing is considerably large. 4. Since the storage pool is installed underground, the distance to the water tank on the roof is very long. Therefore, considerable energy needs to be used to pump tap water. 5. The pump is installed directly in the water storage pool, but there is no means to suppress vibration and noise around the pump, so the operation of the pump may cause vibration and noise disturbance to nearby residents. .

[0006] The present invention solves the above-mentioned problems, and a water transmitter is installed directly in the ground or on the ground using a small casing, and at the same time, tap water is injected into the casing, and the water is supplied by a pump. The water is pumped from the water pipe to the water tank via the water inlet in the lid of the casing. In addition, a valve provided at the end of the supply / exhaust pipe in the lid prevents the generation of negative pressure, and provides a liquid level sensor that can control the operation of the pump in the casing to comply with the law. . With the above configuration, the hermetic water supply device of the present invention has many effects such as easy cleaning, space saving, and prevention of pollution and noise. Excellent in nature.

[0007]

[Means for Solving the Problems]

 The present invention is a water supply device which has a built-in pump and transfers tap water from a water supply pipe to a water tank installed on the roof via a water supply pipe, and has a small casing in which a pump can be installed inside. The casing is provided with a sealable lid at the upper end opening, and a water supply port and a water supply / exhaust port are formed in the lid to penetrate the water supply pipe. The water supply / exhaust port balances the air pressure in the water supply device. A valve is provided at the end of the supply / exhaust pipe, a liquid level sensor that controls the operation of the pump is provided in the casing, and the outlet of the pump is connected via a water supply port in the lid. To provide a hermetically sealed water supply device that is communicated with a water supply pipe.

[0008]

[Preferred Embodiment of Invention]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of the hermetic water supply device according to the present invention, FIG. 2 is a cross-sectional view of a pump in the hermetic water supply device according to the present invention, and FIG. 3 is an embodiment of the hermetic water supply device according to the present invention. FIG. 4 is a sectional view showing a first embodiment of a valve in the hermetic water dispenser according to the present invention, and FIG. 5 is a second embodiment of a valve in the hermetic water dispenser according to the present invention. FIG.

As shown in FIGS. 1 and 2, the hermetically sealed water supply device 20 of the present invention is provided with a small-sized casing 21 in which a pump 22 can be installed, and the casing 21 is formed by hollow stainless steel. In addition, a lid 212 that can be closed tightly is provided at the opening at the upper end of the casing 21, an openable drain port 213 is provided at the lower end, and a control valve or faucet is provided at the drain end of the drain port. Thus, the opening and closing of the drain port 213 is controlled. In addition, a water injection port 214 connected to the water pipe 10 is provided on a side of the casing 21, and a water supply port 215 and a supply / exhaust port 216 are formed in a lid 212 provided at an upper end of the casing 21. Also, as shown in FIGS. 1 and 2, the pump 22 is installed inside the casing 21 and the bottom of the pump 22 is fixed inside the casing 21 via a rubber packing 217 to prevent vibration and noise. I do. Further, a liquid level sensor 26 is provided inside the casing 21, and the liquid level sensor 26 is provided with a low water level control unit 261 and a high water level control unit 262. Therefore, when the internal water level of the casing 21 is extremely low, the operation of the pump 22 is interrupted to prevent the pump 22 from being damaged. The lid 212 is in close contact with the upper end opening of the casing 21 via a rubber packing (no symbol), and the outlet (no symbol) of the pump 22 is connected to the lid 212 by a high-pressure soft connection pipe 221. Is connected to the water supply port 215 at

The water supply device 20 incorporating the pump 22 is installed on the ground or underground in accordance with a user's request, and the installation method shown in FIG. 1 is an example of installation under the ground. . In this case, the control valve or the faucet of the drain port 213 in the casing 21 is closed in advance, and the water pipe 10 provided with the water meter 11, the switch 12, and the check valve 13 is connected to the water inlet 214 on the side of the casing 21. A water supply device 20 is embedded in a hole in the ground, and a supply / exhaust pipe 24 having a predetermined length and extending upward is provided at a supply / exhaust port 216, and a valve 25 is provided at an end of the supply / exhaust pipe 24. Provide. Further, in order to make the water supply port 215 communicate with the water tank 30 by the water supply pipe 23 and to control the amount of water in the water supply pipe 23, a ball valve 31 is provided at an inlet (no symbol) in the water tank 30, and a pump 22 is provided. A limit switch 32 is provided in the water tank 30 in order to control the operation of. Finally, the hole cover 14 is provided on the upper surface of the water supply device 20 on the ground.

Next, the use state of the present invention will be described. As shown in FIGS. 1 and 3, tap water flows into a casing 21 through a water pipe 10, a water meter 11, a switch 12, and a check valve 13, and is filled with the water. When the water level becomes low, the pump 22 in the casing 21 is operated by the limit switch 32, and the tap water is transferred to the water tank 30 on the rooftop through the water pipe 23, and the water tank 30 When the water level is high, the pump 22 is stopped by the limit switch 32, and the injection of tap water from the water supply pipe 23 is stopped by the ball valve 31. A supply / exhaust pipe 24 is provided in the casing 21, and a valve 25 is provided at an end of the supply / exhaust pipe 24. Thereby, as shown in FIG. 4, when pumping up tap water, the floating body 251 inside the valve 25 descends, opening the valve port 252 at the upper end of the valve 25, and introducing air into the casing 21. . This balances the pressure in the casing 21 and prevents direct inflow of tap water from the water pipe 10 due to generation of a negative pressure in the water pipe 20, thereby providing normal use of tap water to residents in the vicinity. And make the pump function comply with the law. Also, as shown in FIGS. 2 and 3, when the tap water pressure is sufficient and the water tank 30 does not reach the high water level at a time when the tap water is less used, the tap water is pumped. The water is directly transferred from the water pipe 23 to the rooftop water tank 30 via the water inlet 222 in the water tank 22, and when the water level in the water tank 30 reaches a high water level thereafter, water is injected by the ball valve 31. Is stopped. When tap water automatically flows into the water tank 30, the tap water may also flow into the supply / exhaust pipe 24. In such a case, as shown in FIG. By pushing up the floating body 251 in the valve 25 provided at the end of the pipe 24 and sealing the valve port 252, water leakage to the outside is prevented.

If the water level in the water tank 30 becomes lower than the low water level when the water supply is cut off, the pump 22 should be operated immediately by the limit switch 32 to start pumping the tap water. As shown in FIG. 2, when the water level in the casing 21 reaches the position of the low water level control section 261, the low water level control section 261 of the liquid level sensor 26 is provided. By immediately stopping the operation of the pump 22, it is possible to prevent the pump 22 from being damaged, and when the water level in the casing 21 reaches the position of the high water level control unit 262 by supplying water, the pump 22 is automatically restarted. The pump 22 is operated. Thereby, the safety of the water transmitter 20 can be improved and the service life can be extended.

Further, when cleaning the device or inspecting the water supply device 20, the casing 21 buried underground is dug out, the lid 212 is removed, and the drain port 213 at the bottom end of the casing 21 is opened. I do. By doing so, cleaning of the inside of the casing 21 or inspection of the water supply device 20 can be performed.

[0014]

[Effect of the invention]

 Since the present invention has the above configuration, the following effects can be obtained. 1. The water supply device of the present invention uses a small casing with a built-in pump, and its casing can be installed on the ground or underground. This saves a lot of space and reduces the manufacturing cost. it can. 2. Since the water transmitter of the present invention uses a small water storage casing, the water in the casing can be stored to a level at which the pump can be operated in a short time, and when the water supply state changes from a water-off state, or when the water supply state is reached. Water storage time when water is stored again after washing can be shortened. 3. Since the casing is a small container, draining a small amount of tap water in the casing allows the washing to be performed immediately, and the casing has a small volume. The amount of water is very small. 4. The water transmitter is completely sealed and there is no risk of rainwater infiltration, so there is no need to worry about contamination and it can always store tap water with excellent water quality. 5. By installing the water transmission device directly on the ground or in the ground, the distance to the water tank on the roof is relatively short, so it is easy to pump water and the load is small. Therefore, energy is saved. 6. The pump is installed in a closed casing, rubber packing is provided at the bottom of the pump to absorb vibrations, and the connection end is connected to an external water pipe by a high-pressure resistant soft pipe. Noise can be reduced. 7. The water pump of the present invention pumps water indirectly and communicates with the valve, so when pumping water, air can be introduced to balance the pressure inside the water transmitter and to reduce the negative pressure. Prevention can prevent adverse effects on nearby residents. Therefore, the closed type water supply device of the present invention can be fully adapted to such laws.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a closed type water supply device according to the present invention.

FIG. 2 is a cross-sectional view of the water supply device in the hermetic water supply device according to the present invention.

FIG. 3 is a cross-sectional view illustrating an embodiment of the hermetic water supply device according to the present invention.

FIG. 4 is a cross-sectional view showing a first embodiment of a valve in the hermetic water supply device according to the present invention.

FIG. 5 is a sectional view showing a second embodiment of the valve in the closed type water supply device according to the present invention.

FIG. 6 is a cross-sectional view of a conventional sealed water supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Water pipe 11 Water meter 12 Switch 13 Check valve 14 Hole cover 20 Water transmitter 21 Casing 212 Lid 213 Drain outlet 214 Water inlet 215 Water inlet 216 Supply / exhaust air 217 Rubber packing 22 Pump 221 Connection pipe 222 Water inlet 23 Water pipe 24 Supply / exhaust pipe 25 Valve 251 Floating body 252 Valve port 26 Liquid level sensor 261 Low water level control unit 262 High water level control unit 30 Water tank 31 Ball valve 32 Limit switch 40 Water pipe 50 Water storage pool 51 Pump 52 Cover plate 53 Water pipe 54 Ball Valve 60 Water tank 61 Limit switch

Claims (3)

[Utility model registration claims] 1. A water supply device having a built-in pump for transferring tap water from a water supply pipe to a water tank provided on a rooftop via a water supply pipe, comprising a casing which is small and in which a pump can be installed. A lid that can be sealed is provided at the upper end opening of the casing, and a water supply port and a supply / exhaust port that penetrate the water supply pipe are formed in the lid, and the supply / exhaust port is used to balance the pressure inside the water supply device. A valve is provided at the end of the supply / exhaust pipe, a liquid level sensor for controlling the operation of the pump is provided in the casing, and an outlet of the pump is provided through a water supply port in the lid. A closed-type water dispenser characterized by being communicated with. 2. The hermetically sealed type casing according to claim 1, wherein said casing is made of a stainless steel material, and a high pressure resistant soft connection pipe is provided between an outlet of said pump and a water supply port in a lid portion. Water supply. 3. The hermetically sealed type as claimed in claim 1, wherein an openable drain port is provided at the bottom of the casing, and the bottom of the pump is fixed in the casing via rubber packing. Water supply.