JP2004308414A - Pressure feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressure feeding device capable of ensuring tolerance amount to receive drain before drain flows into the pressure feeding device from each drain equipment. <P>SOLUTION: This pressure feeding device is provided and connected with the downstream side of the drain equipment, has such shape of outer profile that stores water in the inside, and is provided with a pressure feeding pump inside it. It is provided with a drain control means for detecting flowing-in of drain to detect flowing-in of drain by the drain control means in order to drive the pressure feeding pump before drain flows into the pressure feeding device from the drain equipment. Consequently, since it is started to discharge drain in the pressure feeding device before drain from the drain equipment flows in, tolerance amount for the next drain can be ensured. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pumping device which is connected to and provided downstream of a drainage device, has a shape in which water can be stored inside, and has a pumping pump inside.

  In recent years, in order to realize an indoor layout change that can flexibly respond to changes in lifestyle, technical development of a pumping device that can easily move the drainage of equipment by means of a flexible pipe has been advanced in recent years.

  In some of the pumping devices shown in the past, when the pump stopped, the water that was present in the drain channel that was started up returned to the casing of the pump, and the pump almost submerged due to the water. In this case, when new wastewater flows in, the water level in the casing immediately rises to the position of the sensor at the top, so that the water can be immediately driven. (For example, see Patent Document 1).

  However, as shown in Japanese Patent No. 2579023, in a pumping device in which the pump is almost submerged when the pump stops, the capacity to accept the next drainage is too small. It seems that there is no problem because the pump operates immediately, but the discharge capacity of the pump changes due to the influence of the downstream piping condition, so it can not always be said that the pump can always be discharged at a higher flow rate than the next inflow of drainage . Also, when considering connection to various drainage devices with high versatility, there are devices with large instantaneous flow rate such as toilets, so it is not possible to respond with a pumping device with a small allowable amount of next drainage in this way. Seem.

Also, when the pump is stopped, even if the water level in the pumping device is not as high as this, depending on the shape of the downstream piping, part of the wastewater once discharged from the pumping device may flow backward and return to the pumping device. It may come. Further, even when the drainage device itself is not drained, when the drainage device is cleaned or the like, it is conceivable that some water flows into the pumping device and the water level rises. Therefore, considering the allowance of the next drainage, it is better to keep the water level as low as possible before the inflow.
Japanese Patent No. 2579023

An object of the present invention is to solve the above-mentioned problems and to provide a pumping device capable of securing an allowable amount to receive the wastewater before the wastewater flows into the pumping device from each drainage device.
In addition, the drainage equipment mentioned here shall be a toilet bowl, a urinal, a bathtub, a washing place in a bathroom, a washstand, a kitchen sink, etc.

In order to solve the above-mentioned problem, in the pumping device of the present invention according to claim 1, the pumping device is connected to and provided downstream of the drainage device, and the storage tank has a shape capable of storing water therein, and a pumping pump therein. A pumping device comprising a system start switch for controlling the drive of the drainage device or the pumping device, and a signal from the system start switch, and after driving the pumping pump, from the drainage device. Drainage is allowed to flow into the pumping device.
As a result, the drainage in the pumping device is started to be discharged before the drainage from the drainage device flows in, and the water level in the pumping device is reduced, so that there is enough room, so that an allowable amount for the next drainage can be secured. Also, depending on the piping conditions, a part of the drainage once discharged from the pumping device may flow backward and return into the pumping device depending on the shape of the downstream piping, so that an allowable amount for receiving the wastewater can be secured.

In the pumping apparatus according to the present invention, the pump is connected to the downstream side of the drainage device, and the storage tank has a shape capable of storing water therein, and includes a pumping pump therein. A pumping device in which a sufficient amount of water to cut off the edge with the sewage is stopped when stopped, comprising a system start switch for controlling the drive of the drainage device or the pumping device, from the system start switch In response to the signal, the pump is driven, and after the discharge of the sealed water is started, the drainage from the drainage device flows into the pumping device.
Thereby, a part of the drainage from the drainage device can be used as a water sealing trap, and there is no need to provide another water sealing trap, and the shape from the drainage device to the water sealing trap can be compactly stored. Further, before the inflow of the next drainage, the sealed water starts to be pumped and discharged, so that an allowable amount for the next drainage can be secured.

Further, in the pumping device of the present invention according to claim 3, a water level sensor for detecting a water level in the storage tank is provided, the pump is driven by a signal from the system start switch, and the water level sensor is provided in the storage tank. After detecting that the water level has fallen below the predetermined water level, the drainage from the drainage device is caused to flow into the pumping device.
This makes it possible to allow the drainage from the drainage device to flow into the storage tank after the water level in the storage tank has reliably decreased, so that the allowable amount of drainage from the drainage device in the storage tank can be ensured. it can. Therefore, depending on the piping conditions, it is possible to reliably prevent a problem that part of the wastewater once discharged from the pumping device flows backward and returns to the inside of the pumping device due to the shape of the piping downstream of the drainage device.
In addition, it is possible to control the water input to the storage tank and the discharge from the storage tank based on the water level, and to control the flow of the wastewater in the storage tank into or out of the storage tank in an appropriate sequence.

The pump is driven to drain the wastewater from the storage tank, and then the wastewater from the drainage device flows into the pumping device. Acceptable in the tank.

An embodiment of a pumping device according to the present invention will be described with reference to the drawings. FIG. 1A shows a system in which a pressure feeding device is connected to a bowl 6 of a toilet, and an opening / closing portion 7 is provided at the connection portion. At this time, the state of each part is as shown in FIG. 2A, and is based on a signal from a water level sensor provided in the pumping device. The user sits on the toilet seat ("start of use" in FIG. 2A), excretes, and turns on the manual washing switch after the end. Further, during this time, the washing of the bowl surface starts, and at the same time, the pumping is performed in the pumping apparatus to allow new drainage, and the water level in the apparatus decreases. Here, it is assumed that the bowl cleaning and the start of the pumping of the pumping device, that is, the system start switch is turned on at the same time, but they may be operated individually, and especially the system start switch is set to an appropriate water level during the time when the pumping is performed. It is desirable that the adjustment be made.
When the water level sensor detects that the water level has dropped sufficiently, the opening / closing section opens and drainage to the pumping device starts. When the water level rises and the washing is completed, the opening / closing section closes, and the drainage in the pumping device is pumped. Up to this point, the function as a normal toilet has been described. However, since this toilet does not have a trap, water is sealed in the pumping device, and this is used as a trap. In other words, after the pumping is completed, the water level in the pumping device is lowered, and fresh clean water is supplied until the water level reaches an appropriate level. This maintains a state that is both hygienic and user-friendly. Here, the appropriate water level sensed by the water level sensor is preferably a water level lower than the opening 7. Thus, when draining from the toilet to the pumping device, the drainage in the pumping device does not flow back to the toilet. More preferably, it is preferably 2/3 or less from the bottom of the storage tank. As a result, in the initial stage of drainage from the toilet, even if the amount of drainage is large, backflow from the storage tank to the toilet can be more reliably prevented.

  Hereinafter, an embodiment of a pumping device according to the present invention will be described with reference to the drawings. FIG. 1A is a side view showing an embodiment when a bowl 6 of a toilet bowl is connected to the pumping device 1. This bowl 6 has no trap downstream. Although a normal drainage device has a drainage route also serving as a trap, here, an opening / closing unit 7 is provided instead. In this case, there is no trap that cuts off the edge of the sewer, but the drainage 4 can be held in the pumping device 1 as sealed water to form a trap. In order to secure a sufficient space for allowing the water to flow before the next drainage flows in, as in the above-described pumping device 1, the system start switch 51 is turned on, and the pumping pump 2 is driven. It is necessary to sufficiently reduce the remaining amount of wastewater in the building.

  FIG. 1 (b) similarly shows the toilet connected to the pressure feeding device 1, but here the toilet itself has a trap. Therefore, it is not necessary to supply water as sealing water into the pressure feeding device as shown in FIG. However, it is desirable to store clean water in the box at the end of a series of operations for sanitary and user's purposes.

  FIG. 2A is a diagram showing the time course of the system shown in FIG. 1A, and FIG. First, drainage is stored in the pumping apparatus at a certain water level ("start of use" in FIG. 2). If necessary, as shown in FIG. 1 (a), this is an amount sufficient to cut off the edge of sewage as sealing water. Next, the pressure pump 2 is driven by the system start switch 51 to pump and discharge the drainage water, lowering the water level in the pumping device, and securing a sufficient space for allowing drainage ("water level decrease" in FIG. 2). Thereafter, if necessary, the pump is temporarily stopped, and the wastewater flows from the drainage device into the pumping device, and the water level in the pumping device rises (“drainage inflow” in FIG. 2). Then, the pressure pump 2 is driven again to discharge and discharge a proper amount of waste water (“pressure discharge” in FIG. 2). After that, if necessary, it is necessary to secure enough water that can be sealed in the pumping device. Therefore, washing water is added until an appropriate water level is reached (“sealing water supply” in FIG. 2). ). When using a drainage device already equipped with a trap as shown in FIG. 1 (b), it is not necessary to provide water sealing. However, it is necessary to keep the inside dry and prevent dirt from sticking and It is desirable to add as clean water as possible to the pumping device.

The drive of the pressure pump 2 must be before the inflow of the drainage from the drainage device. In FIG. 2, the time is the same as when the user presses the manual cleaning switch after excretion. However, the present invention is not limited to this, and any control method may be used. The pump is driven by turning on the system start switch at an appropriate time.
Further, in FIG. 2, the subsequent flow of water supply and drainage is based on the water level sensor 9 provided in the pumping device, but may be controlled using a timer if the flow rate can be known.

FIG. 3 shows a pumping device. As shown in FIG. 3 (a), when a certain amount of drainage 4 already exists in the pumping device 1, and further drainage from drainage equipment flows in from this state, the pumping device 1 has a sufficient space to allow this. Does not exist and may overflow from the pumping device 1. Therefore, a drainage control means (not shown) is provided, and before the pumping device 1 receives the drainage from the drainage device, the pumping pump 2 is driven to sufficiently reduce the remaining amount of the drainage 4 in the pumping device 1 as shown in FIG. When a toilet is connected to the pumping device 1, it is more preferable to crush dirt and toilet paper and feed it with a thinner pipe, so that the construction and renewal of the discharge pipe can be performed. It can be performed simply and at low cost. Further, by using a flexible tube as the discharge tube, the flexibility, which is an advantage of the pressure feeding device 1, can be further enhanced.
An embodiment of the crushing unit 41 for crushing filth and toilet paper will be described. Any material can be used as long as the waste can be pulverized and can be pumped and discharged through a thin tube. For example, as shown in FIG. 2, a pulverizing unit 41 having a built-in cutter 40 is provided. A motor having the same axis as the motor 22 and operating with rotation of the motor 22 may be considered. Thereafter, it is pumped and discharged to the outside by the thin tube 19.

  FIG. 4 shows a case where a basin as the drainage device 8 is connected to the pumping device 1 instead of the toilet. Since the basin has its own trap downstream, it is not necessary to provide a water seal in the pumping device. As described above, it is also possible to provide a pumping device to a drainage device other than the toilet, and it is also possible to pump drainage from a plurality of drainage devices depending on the processing capacity of the pumping device.

It is a side view of the pumping device when connected with the toilet which is one Embodiment of this invention. FIG. 3 is a diagram showing a time course of a water level in the pumping device according to the embodiment of the present invention. 1 is a side view of a pressure feeding device according to an embodiment of the present invention. It is a side view of the pumping device when connected with the washbasin which is one Embodiment of this invention.

Explanation of reference numerals

1: pumping device 2: pumping pump 3: storage section 4: drainage 5: drainage inlet 21: drainage suction port 22: motor 23: impeller 6: bowl 7: opening / closing section
40: cutter 41: crushing section 8: drainage device 9: water level sensor 10: washing nozzle 51: system start switch

Claims (3)

A pumping device that is connected to the downstream side of the drainage device and has a shape such that water can be stored therein, and has a pumping pump therein, and controls the driving of the drainage device or the pumping device. A pump for driving the pump by using a signal from the switch for starting the system, and then causing drainage from the drainage device to flow into the pumping device after driving the pump. It is connected and provided downstream of the drainage equipment, the storage tank is shaped to hold water inside, it has a pump inside, and when the pump stops, enough sealing to cut off the edge with the sewage. A pumping device in which water is held, the system including a system start switch for controlling the driving of the drainage device or the pumping device, and driving the pump by a signal from the system start switch, A pumping device, wherein drainage from the drainage device is caused to flow into the pumping device after water discharge is started. A water level sensor for detecting the water level in the storage tank is provided, and the pump is driven by a signal from the system start switch, and the water level sensor detects that the water level in the storage tank has fallen below a predetermined water level. The pumping device according to claim 1, wherein the drainage from the drainage device is caused to flow into the pumping device after the drainage.

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