JP2002275976A - Force feed equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize miniaturization and a low cost for force feed equipment having a force feed section by a pump in a water storage tank by enhancing the exhaust capacity of drain and, at the same time, reducing the load to the pump. SOLUTION: A recessed portion 15 one step depressed from a bottom surface in the surrounding is formed at a bottom portion of the water storage tank 10 for temporarily storing drain and an auxiliary exhaust port 14 is provided at its side surface, and an auxiliary pipe 42 for performing natural flow due to deadweight of the drain is connected. A guide portion 16 sloped obliquely from the surrounding bottom surface is formed to the recessed portion 15 for easily collecting the drain remained at the bottom portion of the water storage tank 10. In this way, drain remained due to difficulty in force feed by a force feed section 20 can be discharged and this makes the bottom portion more healthy. Also, since discharge by natural flow is carried out in parallel to the force exhaust by the force feed section 20, the discharge capacity as a whole can be enhanced and then the pump capacity can be relatively reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention smoothly discharges various wastewaters (miscellaneous wastewater, human waste, etc.) discharged from various water supply / drainage facilities such as toilets, bathtubs, sinks for sinks, kitchen sinks, and pans for washing machines. To a pumping device for

[0002]

2. Description of the Related Art In recent years, a type of forced discharge device called a pumping device has been widely used for discharging waste water from a unit-type toilet or a bathroom. In general, a pumping device includes a storage tank that temporarily stores wastewater from a water supply and drainage facility, a pump that sucks and discharges wastewater collected in the storage tank, and a pumping pipeline connected to a discharge port of the pump. It is configured.

In such a pumping device, for example, if the pump breaks down, drainage from the storage tank cannot be performed.
In the worst case, drainage overflow may occur. In order to cope with such a problem, conventionally, for example, Japanese Utility Model Laid-Open No. 6-47.
A pressure feeding device described in Japanese Patent Publication No. 700 and the like is known. This pumping device employs a configuration including a siphon discharge pipe that siphons up the wastewater in the storage tank and discharges the wastewater outside the tank when the water level of the wastewater stored in the storage tank reaches an abnormal water level.

[0004]

However, in such a conventional pumping device, the siphon discharge pipe functions only when an abnormality occurs. Therefore, the siphon discharge pipe is useless unless an abnormality occurs, and the cost simply increases. This can be a factor.

[0005] The present invention has been made in view of such a point, and its main purpose is not only to cope with the occurrence of an abnormal water level, but also to remove the water from the storage tank even in a normal use state. It is an object of the present invention to provide a pumping device capable of improving the drainage discharge efficiency of wastewater and eventually lowering the discharge capacity of a pump for pumping wastewater to achieve cost reduction and downsizing.

[0006]

In order to solve the above-mentioned problems, in a pressure feeding device according to the present invention, a drainage tank for temporarily storing wastewater discharged from a water supply / drainage facility and a suction port opened in the storage tank are provided. A pumping means for sucking the wastewater and forcing the wastewater out of the tank, wherein the discharging means for discharging the wastewater in the storage tank to the outside of the tank without requiring a driving force, separately from the pumping by the pumping means. It is characterized by having.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In a pumping apparatus according to the present invention, a typical embodiment of a discharging means is a discharge channel having a discharge port provided in a storage tank as an inlet. It is possible to adopt a configuration in which drainage in the storage tank flows out naturally through the discharge channel when not performed. It is preferable that the discharge flow path is disposed, for example, with an appropriate downward inclination toward the downstream side so that drain water flows out of the storage tank by natural outflow due to its own weight. Further, the downstream end of the discharge channel may be connected to a drain stack, and the drain may flow into the discharge channel by a suction action of the drain falling in the drain stack. In addition, not only when the pumping is not performed by the pumping unit but also when the pumping is performed by the pumping unit, the discharging that does not require the driving force may be performed in parallel with the pumping.

According to the pumping device of the present invention, in addition to the pumping by the pumping means, the drainage by the discharging means is performed when, for example, the pump included in the pumping means is not operating or is operating. . Accordingly, the discharge capacity of the entire pumping device is improved, so that the discharge capacity of the pump can be reduced and the pump can be downsized. In addition, power saving, noise reduction, and cost reduction can be achieved. In addition, even in the event that the pump cannot be pumped due to a failure, the drainage flow path due to natural outflow is secured, so that it is possible to prevent the storage tank from becoming full and overflowing the drainage. .

Preferably, the discharge port is provided on the bottom of the storage tank or on a side wall near the bottom. According to this configuration, it is possible to discharge the wastewater before the water level of the wastewater flowing from the water supply / drainage facility rises to a water level at which the pump can suck the water. It is more advantageous for power saving and noise reduction. Also, the number of operation of the pump is reduced, so that the number of failures is reduced. Furthermore, since it is possible to discharge wastewater remaining at the bottom of the storage tank without being sucked by the pump,
The sanitary condition in the storage tank is improved.

[0010] It is preferable to provide a water collecting portion on the upstream side of the discharge port, in which drainage in the storage tank is concentrated by its own weight.
According to this configuration, since the drainage is collected in the discharge port in a short time by the water collecting part, the drainage can be performed quickly. Also,
Since drainage hardly remains at the bottom of the storage tank, it is more advantageous to maintain a sanitary condition in the storage tank.

Further, it is preferable that the water collecting section includes a concave portion provided on the bottom surface of the storage tank. According to this configuration, the drainage at the bottom of the storage tank flows toward the concave portion and collects there, so that when the drainage falls into the concave portion, the flow velocity increases, and the drainage can efficiently flow out from the discharge port.

As a specific example of the water collecting part, at least a part of the bottom surface of the storage tank can be configured to be inclined downward toward the discharge port. In this configuration, the drainage flows along the slope, and the drainage quickly collects near the drainage outlet. Also,
The cost can be reduced because the water collecting part can be formed integrally when manufacturing the storage tank.

As another mode for efficiently collecting wastewater at the discharge port, a configuration may be provided in which the storage tank is inclined so that the wastewater in the storage tank flows toward the discharge port. With such a configuration, it is possible to obtain the same effect as provided by the water collecting section. Furthermore, the flow rate of the drainage water toward the discharge port changes depending on the angle of the inclination, and the floor surface on which the storage tank is installed may have an inclination. Therefore, the inclination means changes the inclination angle. It is further preferred to include possible adjustment means.

[0014] According to this configuration, regardless of the installation condition of the storage tank, the storage tank is surely inclined toward the discharge port, the discharge from the discharge flow path is performed quickly, and the drainage is formed at the bottom of the storage tank. Can be prevented from remaining.

Further, at least one discharging means may be provided, but a plurality of discharging means may be provided. This increases the discharge flow rate other than by pumping, so that it is possible to cope with an increase in the amount of drainage flowing into the storage tank. In addition, the capacity of the storage tank itself can be reduced, which is advantageous for miniaturization of the pumping device. This makes it less likely to be restricted by the size and height of the installation location of the pumping device, and increases the degree of freedom of installation.

When a plurality of discharge means are provided, they may be provided at different positions in the height direction of the storage tank, or may be provided at substantially the same position in the height direction of the storage tank. . According to the former, the amount of inflow of wastewater into the storage tank is large, and even when the water level rises due to insufficient discharge by the lower discharge means and pumping by the pump, the wastewater is naturally discharged by the upper discharge means. It can be made to flow out to avoid overflow of the storage tank. On the other hand, according to the latter, even if the pump has a low discharge capacity, when the water level reaches the position where the discharge means is provided, natural discharge of drainage from the storage tank is performed with a high discharge capacity corresponding to the number of the discharge means. It can be performed. Therefore, it is possible to avoid overflow of the storage tank.

When a plurality of discharge means are provided as described above, it is preferable to provide a closing means for closing a plurality of open end faces of the plurality of discharge means. Here, the “open end face” refers to an end face of a discharge port formed in the storage tank or a place where a discharge flow path connected to or integrally formed with the discharge port is interrupted. According to this configuration, the number of discharge means to be used is changed in accordance with various specifications such as an assumed drainage amount in a house where the pumping device is installed, an office, etc., and installation conditions, and an open end face of unnecessary discharge means is appropriately adjusted. Can be closed by the closing means. Therefore, it is possible to flexibly respond by using the same pumping device. Of course, according to the change of the use conditions after this pumping device is installed once,
It is also easy to appropriately change the number of discharging means used.

Further, as an embodiment of the pumping apparatus according to the present invention, it is possible to further comprise a joining means for joining the drainage flow path by the above-mentioned pumping and the drainage flow path by natural outflow. This merging means may be provided inside the storage tank, or may be provided outside the storage tank.

According to this structure, since only one flow path is required on the downstream side of the merging means, the arrangement of the drainage pipe is facilitated and the cost can be reduced. Also, if the flow path of the drainage by natural outflow naturally flows down to at least the merging position by the merging means, since the discharge is promoted by pressing by pressure feeding, it is not necessary to cause more natural flow than necessary, The installation conditions of the piping can be relaxed.

In addition, in the discharge channel due to the natural outflow,
With the configuration in which the flow direction restricting means for preventing the backflow of the wastewater is provided, even when the wastewater stays on the downstream side of the discharge flow path, the backflow of the wastewater can be prevented. In particular, in the configuration having the merging means as described above, it is preferable that the flow direction restricting means is provided in the discharge channel by the natural outflow upstream of the merging position by the merging means. Thus, it is possible to prevent the drainage pumped at the time of pumping by the pump from flowing backward and returning.

If the angle formed by the merging means at the merging point of the two flow paths is less than 90 °, the merging is performed smoothly, so that the flow resistance is reduced in any of the flow paths and the discharge is prevented. Nothing.

In one embodiment of the merging, the flow path of the drainage by pressure feed is inserted into the flow path of the drainage by spontaneous outflow by a predetermined length, and the flow of the drainage by pressure feed is formed near the open end face of the flow path. A configuration in which the roads are merged can be adopted. Here, the “open end face of the drainage flow path by pressure feeding” is a place where the flow path of the drainage pressure fed by the pressure feeding means is interrupted, and is inside the flow path of the drainage water due to natural outflow and on the downstream side thereof. It is open to the public. According to this configuration, the movement of the drainage due to the natural outflow of the surroundings is promoted by the momentum of the drainage discharged from the open end face of the flow path by the pressure feeding, so that the drainage can be performed efficiently.

Further, instead of providing the confluence means as described above, a drainage stack or a drainage basin or a drainage basin corresponding to the drainage channel by the pressure feed is inserted into the channel of the drainage by natural outflow. It is good also as a structure extended to the drainage receiving means which performs. According to this configuration, the number of drainage pipes becomes apparently one, and the pipes become easy. Further, even if drainage leakage occurs in the flow path on the pressure feeding side, the drainage flow path due to natural outflow covers the periphery, so that the drainage does not leak out.

The pressure feeder according to the present invention may be configured to further include a pulverizing means for pulverizing solids flowing into the storage tank. According to this, it is possible to receive wastewater containing solid matter such as a toilet in a toilet room, finely crush the solid matter, and discharge the solid matter. Therefore, it is possible to provide a pressure feeding device corresponding to a wider range of water supply / drainage facilities.

[0025]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention;

[First Embodiment] FIG. 1 is a block diagram of a pumping apparatus according to a first embodiment of the present invention. This pumping device is a storage tank 1 having a drain inlet 11 and a vent 12 on the upper surface, a pumping outlet 13 on the upper side, and an auxiliary outlet 14 on the lower side.
0, a pumping unit 20 installed inside the storage tank 10,
Pulverizing unit 3 disposed immediately below inlet 11 in storage tank 10
0.

A pumping section 20 which is an embodiment of the pumping means.
A pump chamber 22 having a motor 21, a suction port 23 opening downward and a discharge port 24 opening laterally, and an impeller 25 rotationally driven by the motor 21 therein;
A pumping line 26 having one end connected to the discharge port 24 and led out of the storage tank 10 through the pumping discharge port 13.

The pulverizing section 30 which is an embodiment of the pulverizing means is provided.
Includes a screen 31 for temporarily locking solids, and a cutter 32 in the screen 31 which is coaxial with the impeller 25 and is rotationally driven by the motor 21. A water level sensor (not shown) for detecting the water level of the stored wastewater is provided inside the storage tank 10, and the on / off operation of the motor 21 is controlled based on a detection signal from the water level sensor. .

The inlet 11 has a primary drain pipe 40 connected to a drain outlet of plumbing equipment such as a toilet bowl, a kitchen sink, a bathtub in a bathroom, a washing place, and a sink in a washroom.
Is connected to the ventilation port 12 and a ventilation pipe 41 communicating with the atmosphere.
The auxiliary discharge port 14 is connected to an auxiliary discharge pipe 42 for discharging drainage by its own weight. That is, in the first embodiment (and also in the following second to fifth embodiments), the auxiliary discharge port 14 and the auxiliary discharge pipe 42 function as the discharge means. The inflow port 11 may be configured to be directly connected to the outflow port of the water supply / drainage facility.
For example, the auxiliary discharge pipe 42 is generally provided with a gentle downward inclination as shown in FIG. 1, but when the other end of the auxiliary discharge pipe 42 is connected to, for example, a drain stack, etc. Auxiliary discharge pipe 4 laid horizontally with reduced air pressure in the drainpipe
It has the function of sucking the wastewater from 2. Therefore, when such a suction action occurs, the auxiliary discharge pipe 42
May be disposed substantially horizontally, or in an extreme case, may be disposed with a slight upward slope.

Here, an example of the operation of the above-mentioned pressure feeding device in the case where the water supply / drainage facility is a toilet bowl will be described. When water is flushed after use in the toilet, the solids flow into the storage tank 10 together with the water via the primary drain pipe 40. The solid matter is locked by the screen 31, and the water mixed with urine passes through the screen 31 and falls into the storage tank 10. The drainage collected in the storage tank 10 is supplied to the auxiliary discharge pipe 42.
Spills naturally through.

However, when water is flushed into the toilet, drainage generally flows from the inflow port 11 at a speed higher than the outflow speed through the auxiliary discharge pipe 42. Therefore, the water level in the storage tank 10 rises, and when this water level reaches a predetermined water level, the motor 21 is started, the impeller 25 rotates to start the pump operation, and the cutter 32 also rotates to rotate on the screen 31. Crush the solid matter that is locked,
It is dropped into the storage tank 10. By the above-described pump operation, human waste is sucked into the pump chamber 22 from the suction port 23, is discharged from the discharge port 24, and is forcibly discharged to the outside through the pressure feed pipe 26. That is, drainage is discharged from both the pressure feeding pipe 26 and the auxiliary discharge pipe 42.

The auxiliary discharge port 14 is provided at the suction port 23 of the pressure feeding section 20.
Since the water is at a lower position than that of the suction port 23, the drainage which is lower than the suction port 23 and cannot be pumped by the pump operation can be discharged from the auxiliary discharge port 14. In addition, since the lower end position of the auxiliary discharge port 14 is substantially the same as the height of the bottom surface of the storage tank 10, almost all of the drainage in the storage tank 10 can be discharged, and the sanitation in the storage tank 10 can be improved. This is advantageous for securing. Further, the drainage capacity is improved as compared with the forced drainage only by the pumping unit 20, so that the drainage can be quickly discharged. Furthermore, even in the event that the pumping operation cannot be performed due to a failure of the motor 21 or the like, the pumping operation can be performed naturally through the auxiliary discharge port 14. It is possible to avoid falling.

In order to completely discharge the wastewater remaining in the storage tank 10, the auxiliary discharge port 14 is preferably provided at the bottom of the side surface of the storage tank 10 or at the bottom of the storage tank 10, but in other respects. The auxiliary outlet 14 may be provided in the upper part of the side surface. Also, in FIG. 1, the pressure feed line 26 is drawn out of the tank through the pressure feed outlet 13 but is a line connected by a joint or the like at the pressure feed outlet 13 or any other place. You may. Furthermore, other pipelines are not a separate member from the storage tank 10, but may be integrated with the storage tank 10.

FIG. 25 is a configuration diagram showing a modified example of the pressure feeding device of the first embodiment. In this example, the pulverizing unit is not provided in the storage tank 10, and the inflow port 11 for drainage is provided on the side surface of the storage tank 10. In a pumping device for pumping gray water containing no solid matter, the pulverizing section may not be provided. Further, as described above, since there is no need to flow the wastewater toward the screen of the pulverizing unit, it is not necessary to provide the inflow port 11 on the upper surface.

[Second Embodiment] FIG. 2 is a block diagram of a pumping apparatus according to a second embodiment of the present invention. The same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. In the following description of each embodiment, the same reference numerals are given to the same or corresponding portions as those of the already described embodiments, and the description will be omitted unless otherwise required.

In this pumping device, the bottom of the storage tank 10
A concave portion 15 one step lower than the surrounding bottom surface is formed as a water collecting portion, and an auxiliary discharge port 14 is formed in the concave portion 15. By providing the recess 15 in this manner, the drainage remaining at the bottom of the storage tank 10 can be once guided to the recess 15 and reliably discharged from the auxiliary discharge port 14. Therefore, drainage can be prevented from remaining at the bottom of the storage tank 10.

In FIG. 2, the upper end of the auxiliary discharge port 14, that is, the highest position is substantially flush with the height position H1 of the bottom surface of the storage tank 10, but as shown in FIG. The position may be above H1 or below as shown in FIG. 3 (b), as long as the recess 15 is formed to be at least recessed below H1.

[Third Embodiment] FIG. 4 is a block diagram of a pumping apparatus according to a third embodiment of the present invention.

In this pumping device, a concave portion 15 is formed on the bottom surface of the storage tank 10 as in the second embodiment, and a guide portion 16 in which the bottom surface of the storage tank 10 is inclined toward the concave portion 15 is further formed. Have been. According to this configuration, the storage tank 10
Since the drainage remaining at the bottom of the container flows toward the concave portion 15 by the guide portion 16, the drainage can be completed quickly.

[Fourth Embodiment] FIG. 5 is a block diagram of a pumping apparatus according to a fourth embodiment of the present invention.

In this pumping device, instead of providing a water collecting portion and a guide portion as in the second and third embodiments, a leg portion having a height adjusting mechanism so that the storage tank 10 itself can be inclined. 43 are provided. The leg portion 43 is formed by attaching a screw rod 43b to an upper portion of a foot portion 43a made of an elastic body such as rubber, and the fixing portion 4 having the screw rod 43b fixed to the storage tank 10.
The height can be adjusted by screwing into 3c. By appropriately adjusting the height of the leg portion 43, the entire pumping device is installed so as to be inclined such that the bottom surface of the storage tank 10 is inclined downward toward the auxiliary discharge port 14, as shown in FIG. That is, the leg 43 functions as a tilting unit including an adjusting unit. Thereby, the same effect as providing the water collecting part and the guide part as described above can be achieved. The leg 43 is also effective for vibration isolation.

FIG. 6 shows an example of a modification of the pumping apparatus of the fourth embodiment. In the pumping device of the fourth embodiment, the height of the leg 43 is adjusted in advance before installing the pumping device,
Alternatively, height adjustment is performed after installation, but in the latter case, height adjustment may not be performed properly depending on the situation of the installation location. On the other hand, in the pressure feeding device shown in FIG. 6, the height of the leg 43 can be adjusted from above. That is, the operation rod 4 that can be rotated by a tool such as a hexagon wrench or a screwdriver is attached to the end of the long screw rod 43b of the leg 43.
3d are formed, and operation holes 103 are formed in the four corners of the storage tank 10 substantially vertically so that the operation rod 43d projects as shown in FIG. Thereby, the operation hole 103
By inserting a tool from above and rotating the operation rod 43 d, the leg 43 projecting downward from the bottom of the storage tank 10.
, The inclination of the storage tank 10 can be appropriately changed.

[Fifth Embodiment] FIG. 7 is a structural view of a pumping apparatus according to a fifth embodiment of the present invention, and FIG. 8 is a right side view of the pumping apparatus.

In this pumping device, the first and second auxiliary discharge ports 14a, 14a are provided at the lower and upper sides of the storage tank 10, respectively.
b, and the first and second auxiliary discharge pipes 42a, 42b
Are connected. That is, as soon as the wastewater starts flowing into the storage tank 10, the discharge of the wastewater from the first auxiliary discharge pipe 42a starts, and even if the water level in the storage tank 10 rises and the pumping unit 20 starts the pumping operation, If the water level continues to rise, the second
The discharge of the drainage from the auxiliary discharge pipe 42b starts. Thus, it is possible to prevent the drainage from being filled with the storage tank 10 and overflowing. In addition, since the discharge capacity is increased by providing a plurality of auxiliary discharge ports, the discharge capacity of the pumping unit 20 can be relatively reduced.

The first and second auxiliary discharge ports 14a and 14b are not limited to being provided at positions separated in the height direction. For example, as shown in FIG. 9, the second auxiliary outlet 14b may be provided at the same height as the first auxiliary outlet 14a. Furthermore, 3
Any number of auxiliary discharge ports may be provided. If a large number of auxiliary discharge ports are provided in advance in the storage tank 10 as described above, it is possible to cope with various specifications with the same storage tank when configuring the pumping system. However, not all auxiliary outlets are used at that time. Therefore, as shown in FIG. 24, a closing lid 19 having a high water-sealing property is attached to the unused auxiliary discharge port (the auxiliary discharge port 14b in the example of FIG. 24) as one mode of the closing means. It is preferable to have a structure that can close the open end face 14ba.

[Sixth Embodiment] FIG. 10 is a block diagram of a pumping apparatus according to a sixth embodiment of the present invention.

In this pumping device, a merging pipe 44 having a merging portion 45 formed outside the pumping discharge port 13 and the auxiliary discharge port 14 and connecting pipes connected to the discharge ports 13 and 14 at a substantially right angle.
Are connected as one mode of the joining means, and the outlet of the joining pipe 44 is connected to the drain main pipe 70. A check valve 46 is provided as a mode of flow direction restricting means in a conduit between the auxiliary discharge port 14 and the junction section 45, and a reverse flow of drainage flowing from the junction section 45 to the auxiliary discharge port 14 is provided. Has been blocked.

When the pumping operation by the pumping section 20 is not performed, the check valve 46 is opened as shown in FIG. 10 because the hydraulic pressure at the auxiliary discharge port 14 side is higher than the hydraulic pressure at the junction section 45 side. The drainage naturally flows out of the storage tank 10. When the pumping operation is performed in the pumping section 20, the hydraulic pressure on the merging section 45 side becomes higher than the hydraulic pressure on the auxiliary discharge port 14 side.
6 is closed, and the drainage discharged from the storage tank 10 through the pumping line 26 does not return to the storage tank 10 and the drainage main pipe 7
Sent to 0. That is, in the sixth embodiment, the auxiliary outlet 14, the merging pipe 44, and the drain main pipe 70 function as the discharging means. According to this configuration, only one drain main pipe 70 downstream of the junction pipe 44 is required, so that labor can be saved.

FIG. 11 is a structural view of a main part showing a modification of the pumping device according to the sixth embodiment. In this example, the confluence pipe 44
The angle α formed by the conduits from the two outlets 13 and 14 at the junction 45 is acute. As a result, the drainage sent from the pumping outlet 13 merges more smoothly and flows to the drain main pipe 70. If the joining angle is made acute, the backflow to the storage tank 10 can be avoided even if the check valve 46 is not used. Needless to say, it is preferable to provide the check valve 46 to reliably prevent return.

The junction pipe 44 having the junction 45 may be formed integrally with the storage tank 10, but it is convenient to form a detachable attachment as shown in FIGS. Further, an attachment form as shown in FIG. 12 may be employed. This attachment is
It comprises an auxiliary member 50 attached to the pressure feeding discharge port 13 and the auxiliary discharge port 14, and a main body member 51 provided with a flexible conduit 51a and provided with a junction 45 and a check valve 46 therein. If such an attachment is used, the discharge direction of the drainage can be freely set.

The configuration shown in FIG. 10 and FIG.
3 and FIG. 14 (right side view). That is, the feature of this configuration is that the flow of the drainage from the pressure feeding and discharging port 13 is made linear in the merging pipe 44 and the flow of the drainage from the auxiliary discharging port 14 is bent and merged. According to this configuration, the pressure discharge outlet 1
10 and FIG. 11 show the flow resistance in the flow of the wastewater from FIG.
Therefore, the pumping efficiency of the pumping section 20 is improved, and the discharge capacity is increased as a whole.

[Seventh Embodiment] FIG. 15 is a structural view of a pumping apparatus according to a seventh embodiment of the present invention, and FIG. 16 is a side view of the pumping apparatus.

In this pumping device, a joining pipe 44 having the same attachment form as in the sixth embodiment is used as the joining means, but only one large common outlet 17a is provided in the storage tank 10 and the common outlet 17a is provided. The two branch pipes of the merging pipe 44 are inserted inside, and one of the branch pipes is connected to the terminal opening of the pressure feed pipe 26. Further, a disc-shaped sealing member 47 made of an elastic body and fitted into the inner periphery of the common discharge port 17a and provided with a hole through which the two branch pipes are inserted is fitted and water-sealed. If necessary, a water sealing process such as caulking is performed on the contact surface between the sealing member 47 and the branch conduit and the common discharge port 17a. That is, in the seventh embodiment, the common outlet 17a, the merging pipe 44, and the main drainage pipe 70 function as the discharging means. According to such a configuration, since the connection location is only the common discharge port 17a, the construction can be simplified. In addition, the junction pipe 44 can be selected to have an optimal shape according to the installation state of the storage tank 10 and the type of water supply / drainage equipment. Further, the common discharge port 17a may be provided not on the side surface of the storage tank 10 but on the bottom surface.

[Eighth Embodiment] FIG. 17 is a block diagram of a pumping apparatus according to an eighth embodiment of the present invention.

In this pumping device, a common discharge port 17b with a recess is formed in the bottom surface of the storage tank 10, and a first opening 5 having a check valve 46 as one mode of the joining means is formed therein.
2a and a joining plate 52 having a second opening 52b around which a cylindrical rib is provided is fitted. The rib of the second opening 52b is fitted into the terminal opening of the pressure feed pipe 26. That is, in the eighth embodiment and the following modifications, the common discharge port 17
b, the merging plate 52 (or the merging unit 60) and the drain main pipe 70 function as the discharging means. Thereby, a merging portion is formed outside the merging plate 52, and the same effects as in the sixth and seventh embodiments are obtained. In addition, if the common discharge port 17b is formed integrally with the storage tank 10 in advance, the junction can be formed simply by incorporating the junction plate 52 having a simple structure, so that the cost can be reduced.
Of course, the common outlet 17b may be provided on the side surface of the storage tank 10, but the bottom surface makes it easier to ensure the close contact between the merging plate 52 and the common outlet 17b by water pressure.

FIGS. 18 and 19 show modified examples of the pumping device according to the seventh and eighth embodiments. All of these are pumped by attaching the merging unit 60, which is an embodiment of the merging means, from the inside of the storage tank 10 to the common discharge ports 17c and 17d formed in a predetermined shape on the side or bottom surface of the storage tank 10. The wastewater and the drainage from the natural flow are combined and discharged into one system.

FIGS. 18B and 19B are external perspective views of the merging unit 60. FIG. The merging unit 60 has a cylindrical pressure feed pipe connecting portion 62 extending upward from the hollow main body portion 61.
The main body 61 has an opening 6 provided with a check valve 46.
3 are formed. Also, in the example of FIG. 18B, the cylindrical discharge pipe portion 64 is located on the side, and in the example of FIG.
Is protruding. The outer diameter of the discharge pipe portion 64 is the common discharge port 1
7c, slightly smaller than the inner diameter of the cylindrical portion of 17d,
When mounted as shown in FIGS. 18 (a) and 19 (a), the gap between them is sealed with a sealing member 65 such as an O-ring. According to such a configuration, a junction can be formed in the main body 61 of the junction unit 60 only by attaching the junction unit 60 to the common discharge ports 17c and 17d.

Ninth Embodiment FIG. 20 is a structural view of a main part of a pumping apparatus according to a ninth embodiment of the present invention, and FIGS. 21 and 22 are structural views of a main part of a pumping apparatus according to a modification thereof. is there. In each of these embodiments, similarly to the sixth to eighth embodiments, the pumping drainage and the drainage due to the natural flow are combined and discharged through a single drainage main pipe 70. A pipe for sending drainage extends into a pipe for sending drainage by natural flow, which is a double pipe structure over a certain predetermined length.

In the example of FIG. 20 (a), a common discharge port 17e recessed in a bowl shape is formed on the bottom of the storage tank 10, and an L-shaped bent main drain pipe 70 is connected thereto. I have. As shown in FIG. 20 (b), the common discharge port 17e has a check valve 46 and an L-shaped
Are fitted while being sealed by a sealing member 65 such as an O-ring. The upper end of the L-shaped pipe 72 is connected to the pressure feed pipe 26, and the other end is connected to the main drainage pipe 70.
And is open toward the downstream side of the drainage passage to form an open end face 72a of the drainage flow path on the pressure feed side. Although not shown, the inner diameter of the main drainage pipe 70 is further reduced to the same extent as the L-shaped pipe 72 on the downstream side.

In the pumping apparatus of the sixth to eighth embodiments, when the pump of the pumping section 20 is operated to start the drainage pumping through the pumping line 26, the check valve is operated by the water pressure of the pumped drainage. Since 46 is closed, no discharge by gravity flow is performed during drainage pumping. On the other hand, in the pumping apparatus according to the ninth embodiment, when the pumped wastewater is ejected from the open end face 72a through the L-shaped pipe 72 into the drainage main pipe 70, the surrounding wastewater is entrained and proceeds downstream together. . Therefore, the density of the drainage on the rear side of the open end face 72a of the L-shaped pipe 72 decreases, and the check valve 46 opens to compensate for this, and the drainage in the storage tank 10 flows out. Therefore, the drainage is also discharged by spontaneous flow during pumping, and the pumping discharge promotes spontaneous discharge. As a result, drainage can be efficiently sent. That is, in the ninth embodiment,
The common discharge port 17e, the merging plate 71, and the drain main pipe 70 function as the discharge means. In the configuration shown in FIG. 20, the drain main pipe 70 can be directed in any direction of 360 °, so that the degree of freedom during construction is increased.

In the modification shown in FIG. 21, a common discharge port 17f extending in a cylindrical shape is formed at the bottom of the side surface of the storage tank 10, an L-shaped pipe 72 is provided at the upper part thereof, and a common discharge port 17f is provided at the inlet side of the common discharge port 17f. It has a configuration in which a merging plate 74 provided with a check valve 46 is mounted while being sealed with a seal member 65 such as an O-ring.
The modification shown in FIG. 22 has a pedestal on the bottom side of the storage tank 10 for mounting the merging plate 75 on the inlet side, and forms a common discharge port 17g bent to the side, and the pedestal is formed on the pedestal. It has a configuration in which a merging plate 75 having a check valve 46 and an L-shaped pipe 72 is mounted while being sealed with a seal member 65 such as an O-ring. With such a configuration, FIG.
As in the case of Example 0, the drainage can be discharged by natural flow in parallel with the drainage pumping by the pumping section 20, which is effective in increasing the discharge efficiency.

[Tenth Embodiment] FIG. 23 shows a tenth embodiment of the present invention.
It is a lineblock diagram of an important section of a pumping device by an example. This pumping device is similar to the pumping device of the ninth embodiment described above in that a pipe (the pumping pipe 26 in FIG. 23) through which drainage pumped is passed is inserted inside the common discharge port 17h. ing. However, in the pumping device of the ninth embodiment, the drainage line is interrupted near the outside of the outlet of the common discharge port, so that the drainage merges. The double pipe structure of the pipe 42 and the pumping line 26 continues to a drainage stack for draining downstairs or the ground, or a drainage basin arranged on the ground. That is, as described above, the pressure feed pipe 26 extends to a position where there is no possibility of backflow of drainage without providing a check valve. Therefore, in appearance, one drain main pipe extends from the storage tank, which is similar to the pumping apparatus of the eighth and ninth embodiments, but the actual state (that is, functionally) is the first embodiment. It can be said that it is close to a configuration in which the auxiliary discharge pipe 42 and the pressure feeding pipe line 26 are arranged side by side as in the pressure feeding device of the above. That is, in the tenth embodiment, the common discharge port 17h and the auxiliary discharge pipe 42 function as the discharge means.

In this configuration, it is not necessary to provide a check valve, and since the pressure feed line 26 is inserted through the auxiliary discharge pipe 42, a crack or the like is generated in the pressure feed line 26, or the connection portion is not loosened. Even if the wastewater leaks due to the
Only leaks into the inside, and it can be prevented from leaking to the outside.
Further, the connection point of the pipe to the storage tank 10 is the common discharge port 17.
h and the auxiliary discharge pipe 42,
The probability of water leakage can be reduced.

The above embodiment is merely an example of the present invention, and it is apparent that changes and modifications can be appropriately made within the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a pumping device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a pumping device according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a main part of a modified example of the pumping device according to the second embodiment of the present invention.

FIG. 4 is a configuration diagram of a pumping device according to a third embodiment of the present invention.

FIG. 5 is a configuration diagram of a pumping device according to a fourth embodiment of the present invention.

FIG. 6 is a configuration diagram of a modification of the pumping device according to the fourth embodiment of the present invention.

FIG. 7 is a configuration diagram of a pumping device according to a fifth embodiment of the present invention.

FIG. 8 is a side view of a pumping device according to a fifth embodiment of the present invention.

FIG. 9 is a side view of a pumping device according to a modification of the fifth embodiment of the present invention.

FIG. 10 is a configuration diagram of a pumping device according to a sixth embodiment of the present invention.

FIG. 11 is a configuration diagram of a pumping device according to a modification of the sixth embodiment of the present invention.

FIG. 12 is a configuration diagram of a pumping device according to a modification of the sixth embodiment of the present invention.

FIG. 13 is a configuration diagram of a pumping device according to a modification of the sixth embodiment of the present invention.

FIG. 14 is a side view of a pumping device according to a modification of the sixth embodiment of the present invention.

FIG. 15 is a configuration diagram of a pumping device according to a seventh embodiment of the present invention.

FIG. 16 is a side view of a pumping device according to a seventh embodiment of the present invention.

FIG. 17 is a configuration diagram of a pumping device according to an eighth embodiment of the present invention.

FIG. 18 is a configuration diagram of a pumping device according to a modified example of the seventh and eighth embodiments of the present invention.

FIG. 19 is a configuration diagram of a pumping device according to a modification of the seventh and eighth embodiments of the present invention.

FIG. 20 is a configuration diagram of a main part of a pumping device according to a ninth embodiment of the present invention.

FIG. 21 is a configuration diagram of a pumping device according to a modification of the ninth embodiment of the present invention.

FIG. 22 is a configuration diagram of a pumping device according to a modification of the ninth embodiment of the present invention.

FIG. 23 is a configuration diagram of a pumping device according to a tenth embodiment of the present invention.

FIG. 24 is a configuration diagram of a pumping device according to a modification of the fifth embodiment of the present invention.

FIG. 25 is a configuration diagram of a pumping device according to a modification of the first embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Storage tank 103 ... Operation hole 11 ... Inflow port 12 ... Vent port 13 ... Pumping discharge port 14, 14a, 14b ... Auxiliary discharge port 14ba ... Open end surface 15 ... Concave 16 ... Guide part 17a, 17b, 17c, 17d, 17e , 17f, 1
7g ... common discharge port 20 ... pressure feeding part 26 ... pressure feeding line 30 ... crushing part 40 ... primary drainage pipe 41 ... vent pipe 42, 42a, 42b ... auxiliary discharge pipe 43 ... leg 43a ... foot 43b ... screw rod 43c ... Fixing part 43d Operating rod 44 Merging pipe 45 Merging part 46 Check valve 47 Sealing member 50 Auxiliary member 51 Body member 52, 71, 74, 75 Merging plate 60 Merging unit 61 Body 62: Compression line connection 63: Opening 64: Discharge pipe 65: Seal member 70: Drainage pipe 72: L-shaped pipe 72a: Open end face

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F04D 13/16 F04D 13/16 W X (72) Inventor Kazuya Kokubu Nakajima, Kitakyushu-shi, Fukuoka 2-1-1, F-term (reference) in TOTO Kiki Co., Ltd. 2D061 AA01 AA02 AA03 AA05 AB04 AB10 AC07 AC08 4D065 CA05 CC03 EB20

Claims (21)

[Claims] 1. A pumping apparatus comprising: a storage tank for temporarily storing wastewater discharged from a water supply / drainage facility; A pumping device characterized by comprising discharging means for naturally discharging drainage in the storage tank out of the tank without requiring driving force, separately from the pumping by the pumping means. 2. The discharge means includes a discharge passage having an outlet provided in the storage tank as an inlet, and at least allows drainage in the storage tank to naturally flow through the discharge passage when the pressure feeding is not performed. The pumping device according to claim 1, wherein: 3. The pumping device according to claim 2, wherein the discharge port is provided on a bottom surface or a side wall surface near a bottom of the storage tank. 4. The pumping device according to claim 2, wherein a water collecting section is provided upstream of the discharge port so that drainage in the storage tank is concentrated by its own weight. 5. The pumping device according to claim 4, wherein the water collecting section includes a concave portion provided on a bottom surface of the storage tank. 6. The pumping device according to claim 4, wherein the water collecting part is formed by inclining at least a part of a bottom surface of the storage tank toward the discharge port. 7. The pressure feeding device according to claim 2, further comprising an inclination unit that inclines the storage tank so that drainage in the storage tank flows toward the discharge port. 8. The pumping device according to claim 7, wherein said inclination means includes an adjustment means capable of changing an inclination angle. 9. The pressure feeding device according to claim 1, wherein a plurality of said discharging means are provided. 10. The storage tank according to claim 9, wherein said plurality of discharge means are provided at different positions in a height direction of said storage tank.
A pumping device according to claim 1. 11. The storage device according to claim 9, wherein the plurality of discharge means are provided at substantially the same position in the height direction of the storage tank.
A pumping device according to claim 1. 12. The pumping device according to claim 9, wherein closing means for closing a plurality of open end faces is provided in said plurality of discharging means. 13. The pumping apparatus according to claim 1, further comprising a joining unit that joins a flow path of the drainage by the pressure feeding and a flow path of the drainage by the natural outflow. 14. The pumping device according to claim 13, wherein the merging means is provided inside the storage tank. 15. The pumping device according to claim 13, wherein the joining means is provided outside the storage tank. 16. The pumping device according to claim 2, wherein a flow direction restricting means for preventing backflow of the drainage is provided in the discharge flow path due to the natural outflow. 17. The pumping device according to claim 16, wherein the flow direction restricting means is provided in a discharge flow path due to the natural outflow upstream of a merging position by the merging means. 18. The pressure feeding device according to claim 13, wherein an angle formed by a joining point of the two flow paths by the joining means is less than 90 °. 19. A flow path of the drainage by the pressure feeding is inserted into the flow path of the drainage by the natural outflow by a predetermined length, and the two flow paths are joined near an open end face of the flow path of the drainage by the pressure feeding. The pumping device according to claim 13, wherein: 20. A state in which the flow path of the drainage by the pressure feeding is inserted into the flow path of the drainage by the natural outflow, and is extended to a drainage stack or a drainage basin or a drainage receiving means corresponding thereto. The pumping device according to any one of claims 1 to 12, wherein: 21. The apparatus according to claim 1, further comprising a pulverizing means for pulverizing a solid substance flowing into the storage tank.
20. The pumping device according to any one of 20.