JP2003269629A - Flow passage switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flow passage switching device which takes in air into the piping or a member connected to an outflow port if needed, with small and simple structure. <P>SOLUTION: The flow passage switching device is equipped with a case body 2, a rotating body 4, a pressing means, a driving source, an opening hole part 3 and a control means. In a case body 2, an inflow port Pi connected to the supply source of fluid and a plurality of outflow ports Po1 to Po4 to which a plurality of members supplied by fluid are separately connected are arranged on a predetermined surface. The rotating body 4 is rotatably accommodated in the case body 2 and equipped with a communicating passage 4a alternatively communicating the inflow port Pi and the predetermined outflow ports Po1 to Po4. The pressing means presses the rotating body 4 with a predetermined pressure. The driving source rotates and drives the rotating body 4. The opening hole part 3 communicates the predetermined outflow port Po2 and the case body 2 exterior through a communicating groove 4d which is opened on the predetermined surface of the case body 2 arranged by the inflow port Pi and the outflow ports Po1 to Po4, and provided on the rotating body 4. The control means controls the driving source. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow path switching device for supplying a fluid sent from a fluid supply source to a plurality of members by appropriately switching the flow paths.

[0002]

2. Description of the Related Art Conventionally, when a fluid is supplied to a plurality of members, it is necessary to provide a fluid supply means for each member.
This is a factor causing problems such as an increase in cost and upsizing of equipment. For this reason, for example, it has been considered to supply the fluid delivered from the fluid supply means to a plurality of members by appropriately switching the flow passages by the flow passage switching device.

In the flow path switching device, for example, as shown in FIG. 19, an inflow portion 101 connected to a fluid supply means (not shown) and a plurality of members (not shown) to which the fluid is supplied are individually provided. First to third outflow portions 102a to 102 connected to
c is a housing 103 protruding and formed with a predetermined angular interval in the circumferential direction, and an inflow portion 101 formed in the housing 103 and rotatably housed in the housing 103. First communicating selectively with the outflow portions 102a to 102c of
~ Rotating body 10 provided with third communication passages 104a to 104c
5, and a drive source (not shown) for rotationally driving the rotating body 105.

When the flow path switching device 100 having the above-mentioned configuration is used to supply the fluid sent from the fluid supply means to a plurality of members by appropriately switching the flow paths, the drive source is driven. Accordingly, the rotating body 105 is rotated, and the inflow portion 101 and the predetermined outflow portions 102a to 102c are appropriately communicated with each other via the predetermined communication passages 104a to 104c provided in the rotating body 105, so that the fluid supply means The fluid to be delivered is supplied to a predetermined member.

[0005]

However, in the flow path switching device having the above-described structure, the inflow portion and the first to third outflow portions are provided with a predetermined angular interval in the circumferential direction of the housing. ,
In other words, because of the radial projection and formation, the external dimensions of the flow path switching device have become a major factor in increasing the size.

Moreover, since the fluid supply means and the members to which the fluid is supplied are connected to the inflow portion and the first to third outflow portions via pipes such as pipes (not shown), respectively. Depending on the installation state of the members, the arrangement of the pipes may be complicated (the number of bends may increase, etc.) and the supply of fluid may be hindered.

In the flow path switching device, the first
-Since all the third outflow portions are formed with the same opening area (flow passage cross-sectional area), when the amount of fluid supplied to each member connected to the outflow portion is different, In the middle of the process, it is necessary to dispose a member for reducing the amount of fluid supply. As a result, the number of parts is increased, and the work for disposing the member is required, which is very troublesome. there were.

Further, when air is taken in from outside to the pipes connected to the outflow ports of the flow path switching device and the members to which the fluid is supplied through the pipes, as needed. (For example, when preventing fluid (liquid etc.) from remaining in the pipe), since the flow path switching device is not provided with means for taking in air It was necessary to provide a means for incorporating.

Further, since the flow path switching device is constructed so that the fluid flows in from the circumferential direction of the housing and flows out in the circumferential direction, for example, as shown in FIG. When three or more outflow portions are provided, it is necessary to form a plurality of communication passages that connect the inflow portion and the predetermined outflow portion in the rotating body, and as a result, the structure of the rotating body becomes complicated. There was a problem.

In order to solve the above-mentioned problem, it is conceivable to form the inflow portion in the axial direction of the housing and form the outflow portion radially in the circumferential direction (outer peripheral surface) of the housing. In this case, since the fluid flows in from the axial direction of the housing and flows out from the circumferential direction, the communication passage only needs to be formed at one place. However, the flow path switching device is not limited to the circumferential direction but the axial direction. There was a problem that the external dimensions were also enlarged.

In view of the above-mentioned various problems, the present invention makes it possible to introduce air into a pipe or a member connected to an outflow port as needed, and has a small and simple structure for switching a flow path. The purpose is to provide a device.

[0012]

In order to solve the above-mentioned problems, the present invention provides a plurality of individually connected inflow ports connected to a fluid supply source and a plurality of fluid-supplied members. A housing provided with an outflow port, and a rotating body rotatably housed in the housing and provided with a communication passage that selectively communicates the inflow port with a predetermined outflow port, A pressing unit that presses the rotating body with a predetermined pressure, a drive source that rotationally drives the rotating body, and an opening portion that is opened in the housing and connects the predetermined outflow port and the outside of the housing. And a control means for driving and controlling the drive source.

According to the first aspect of the present invention, since the opening portion that communicates the predetermined outflow port with the outside of the housing is opened in the housing, it is connected to the predetermined outflow port. It is possible to easily connect the pipes and members to the outside of the housing. As a result, the pipes and members can be smoothly connected to the inside of the pipes and members through the holes without using any special means. -Can take in air well.

According to a second aspect of the present invention, in the flow path switching device according to the first aspect, the inflow port, the outflow port, and the opening portion are arranged on a predetermined same surface of the housing. It is characterized in that it is configured as follows.

According to the second aspect of the invention, since the inflow port, the outflow port, and the opening are arranged on the same predetermined surface of the housing, the flow path switching device has its outer dimensions. Can be properly miniaturized. Moreover, the work of connecting the pipes to the inflow port and the outflow port can be smoothly performed, which is convenient.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the flow path switching device described above, in the housing, an inflow port is provided at the center of a predetermined surface, and an outflow port and an opening are provided at concentric positions. Characterize.

According to the third aspect of the present invention, since the inflow port is centered on the predetermined surface of the housing, the outflow port and the opening are arranged at concentric positions.
It is not necessary to form a plurality of communication passages that connect the inflow port and the predetermined outflow port in the rotating body, and the configuration of the rotating body can be simplified.

According to a fourth aspect of the present invention, in the flow passage switching device according to the first aspect, the communication passage of the rotating body is formed to have a larger flow passage cross-sectional area than the outflow port. Characterize.

According to the fourth aspect of the present invention, since the flow passage cross-sectional area of the communication passage of the rotating body is made larger than the flow passage cross-sectional area of the outflow port, the communication passage and the outflow port are formed. This is convenient because it is possible to satisfactorily reduce the pressure loss during the period and reliably discharge the required amount of fluid from the outflow port.

The invention according to claim 5 is the invention according to claim 1 or 4.
In the flow path switching device described in the above, the rotating body is provided with means for communicating a predetermined outflow port and the opening portion when necessary on the surface side facing the outflow port. To do.

According to the fifth aspect of the present invention, the rotating body is provided with means for communicating the predetermined outflow port and the opening portion with each other when necessary. It is possible to reliably eliminate the adverse effects caused by communication or communication of an outflow port other than the predetermined outflow port with the outside of the housing.

The invention according to claim 6 is the invention according to claim 1 or 5.
In the flow path switching device described above, the predetermined outflow port is provided with means for preventing rapid communication with the outside of the housing through the opening portion or preventing rapid disconnection. It is characterized by

In a sixth aspect of the present invention, there is provided a means for preventing a predetermined outflow port from rapidly communicating with the outside of the housing through the opening portion or preventing the communication from being rapidly released. Therefore, it is possible to satisfactorily eliminate the adverse effects caused by the pipes and members connected to the predetermined outflow port being in rapid communication with the outside of the housing or the communication being released (closed). .

The invention according to claim 7 is the invention according to claims 1 to 5.
In the flow path switching device described above, at least one of the housing and the rotating body is provided with a restricting unit that restricts a rotation range of the rotating body.

In the invention according to claim 7, since at least one of the housing and the rotating body is provided with a regulating means for regulating the rotating range of the rotating body, the rotating body exceeds the predetermined rotating range. It is possible to favorably prevent the rotation and the obstacle for the switching operation of the flow path.

The invention according to claim 8 is the invention according to claims 1 to 6.
In the flow path switching device described above, the outflow port is configured such that the opening area thereof has a size commensurate with the amount of fluid supplied to a member connected to the outflow port.

According to the eighth aspect of the invention, the opening area of the outflow port is formed in a size corresponding to the amount of fluid supplied to the member connected to the outflow port. It is not necessary to provide a means for reducing the flow rate of the fluid in the middle of the pipe connecting the port for use and the member, and as a result, the number of parts can be favorably reduced and the flow path switching device can be configured simply. Is possible.

The invention according to claim 9 is the same as claim 1,
In the flow path switching devices described in 3, 4, 5, 6, and 8, the outflow port is configured to be attachable to and detachable from the housing.

According to the ninth aspect of the invention, since the outflow port can be attached to and detached from the housing, it can be appropriately replaced with a port having an opening area corresponding to a member connected to the outflow port. As a result, it is convenient to prepare only the outflow port without preparing a plurality of types of flow path switching devices corresponding to the members connected to the outflow port, which is convenient.

According to a tenth aspect of the present invention, in the flow path switching device according to the ninth aspect, the outflow port is arranged at a predetermined position of the casing and is collectively attached to the casing by using a fixing plate. The feature is that it is fixed.

According to the tenth aspect of the present invention, since the outflow port is fixed to the housing at once by using the fixing plate, the outflow port is attached (fixed) to the housing.
Work can be performed smoothly, satisfactorily, and easily.

According to an eleventh aspect of the present invention, in the flow path switching device according to the ninth aspect, the outflow port is configured to be individually fixed to a predetermined position of the housing by using a screw member or the like. Characterize.

According to the eleventh aspect of the present invention, since the outflow ports are individually fixed to the housing, only the outflow ports that need to be replaced can be attached to and detached from the housing. It is very convenient.

According to a twelfth aspect of the present invention, in the flow path switching device according to the first aspect, the pressing means at least resists a force applied to the rotating body when the fluid is supplied to the member connected to the outflow port. It is characterized in that the rotating body is configured to be pressed to each port side by a force that can be applied.

According to the twelfth aspect of the invention, since the rotating body is pressed by the pressing means to each port side with a predetermined force, the rotating body presses the pressing means at the start (restart) of the fluid supply. It is possible to favorably prevent the above fluid from being no longer supplied to the member connected to the outflow port by being pushed back against.

According to a thirteenth aspect of the present invention, in the flow path switching device according to the first or the twelfth aspect, the pressing means has the pressing means on at least one of its housing and a contact surface with the rotating body. It is characterized in that it is provided with a means for sliding it with respect to the housing and the rotating body when rotating.

In the thirteenth aspect of the present invention, at least one of the contact surfaces between the pressing means and the housing and the rotating body is provided so that the pressing means slides with respect to the housing and the rotating body when the rotating body rotates. Since the means of is provided, even if the rotating body is pressed by the pressing means with a predetermined force,
The rotating body can smoothly and satisfactorily rotate without obstructing the rotation thereof to switch the flow path.

The invention according to claim 14 is the invention as claimed in claim 1,
In the flow path switching device described in 3, 5, the opening portion,
It is characterized in that a means for preventing foreign matter from entering from outside is provided.

In the fourteenth aspect of the present invention, the opening is provided with means for preventing foreign matter from entering from the outside.
It is possible to reliably prevent the occurrence of the problem that the inflow port and the outflow port are clogged due to the entry of the foreign matter.

According to a fifteenth aspect of the present invention, in the flow path switching device according to the first aspect, a sealing means is provided between the casing and the rotating body.

According to the fifteenth aspect of the present invention, since the sealing means is provided between the housing and the rotating body, the fluid leaks into the housing when the inflow port and the predetermined outflow port communicate with each other. It is possible to prevent the fluid from being supplied to the member connected to each outflow port during the rotation of the rotating body, which is convenient.

[0042]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. First, the configuration of the flow path switching means (device) 1 of the present invention will be described with reference to FIGS. 3 to 10. 3 to 5, reference numeral 2 denotes a bottomed casing that constitutes a main part of the flow path switching means 1, and a predetermined surface of the casing 2 (lower side of FIG. 4) has a fluid in the central portion. (In the present invention, for example, the inflow port Pi into which the air supplied from the air supply means provided in the garbage processing device described later) flows in, and the fluid flows out to the position on the concentric circle. Outflow port P of 4
Each of o1 to Po4 is integrally formed with the housing 2.

The outflow ports Po1 to Po4 are used.
The opening area (flow path area) of the outflow ports Po1 to P
The amount of fluid supplied to the members connected to o4 (in the present invention, for example, the pump of the pumping means and the residue collecting means, the air diffusing means, and the sludge collecting means of the wastewater treatment means, which are provided in the garbage treatment device described later). The size is adjusted to fit, for example, as shown in FIGS. 6 (a) and 6 (b), molding may be performed in a state where the size is narrowed down to fit the supply amount of the fluid in advance. As shown in FIG. 6C, in order to narrow the opening area (flow passage area) to a predetermined size at the tip of the outflow ports Po1 to Po4 which are formed in advance with a predetermined opening area (flow passage area). The supply amount of the fluid may be adjusted by fitting the throttle member 2a as necessary or providing a check valve (not shown) or the like.

Next, in FIG. 3, reference numeral 3 is an inflow port Pi and first to fourth outflow ports Po1 of the casing 26.
To Po4 on a predetermined surface (lower side in FIG. 4), on the same circle as each of the outflow ports Po1 to Po4 (see one-dot chain line in FIG. 3), and at the second and second positions. Between the three outflow ports Po2 and Po3, an open hole portion is formed at a position close to the second outflow port Po2, and, for example, when needed via a communication passage provided in the rotating body described later. The second outflow port Po2 is communicated with the outside of the housing 2 (when the inflow port Pi is communicated with the first outflow port Po1).

The opening 3 is formed at a position close to the second outflow port Po2, but it is not limited to this, and an outflow that requires communication with the outside of the housing 2 is required. It goes without saying that it is sufficient to form the hole at a position close to the port for use. Further, foreign matter invasion preventing means 3a having a fine mesh or the like is provided in the opening 3 so that foreign matter such as dust and insects does not enter the housing 2 from the outside through the opening 3. The foreign matter intrusion prevention means 3 is provided.
a may be formed integrally with the housing 2,
It may be formed separately from the housing 2 and fitted into the opening 3.

Next, in FIGS. 4 and 5, reference numeral 4 denotes the housing 2
7 (a) is a disc-shaped rotating body that is rotatably housed therein and has a communication passage 4a that selectively connects the inflow port Pi and the predetermined outflow ports Po1 to Po4. , One of the end faces (inflow and outflow port P
i, Po1 to Po4) (the side facing the surface), an inlet 4b for communicating the inflow port Pi of the housing 2 with the communication passage 4a is provided at the center, and a housing is provided at a predetermined position on the outer peripheral side. An outlet 4c that communicates any one of the plurality of outflow ports Po1 to Po4 arranged in the body 2 with the communication passage 4a is located at a position further away from the outlet 4c by a predetermined distance in the counterclockwise direction. , With a predetermined width and depth along the circumferential direction, and the opening 3 and the second opening 3 that are opened in the housing 2 when necessary (when the inflow port Pi and the first outflow port Po1 are in communication). The communication grooves 4d that communicate with the outflow port Po2 are formed respectively.

The fluid flowing from the inflow port Pi of the housing 2 passes through the inflow port 4b of the rotating body 4 → the communication passage 4a → the outflow port 4c and communicates with the outflow port 4c.
From the predetermined outflow ports Po1 to Po4. Further, in the communication groove 4d, the outflow port 4c is the first outflow port P.
The second outflow port Po2 when communicating with o1
And the opening portion 3 opened in the housing 2 are communicated with each other (see FIG.
(See (b)), the member connected to the second outflow port Po2 (in the present invention, for example, a pump of a pumping means included in the garbage processing device described later) is open to the atmosphere. .

Incidentally, the communication passage 4a provided in the rotating body 4
Is formed such that its flow passage cross-sectional area is larger than the flow passage cross-sectional area of each of the outflow ports Po1 to Po4. This is to prevent the required amount of fluid from being no longer supplied to the members connected to the outflow ports Po1 to Po4 due to pressure loss when the fluid is supplied.

On the other hand, as shown in FIGS. 7 (b) and 7 (c), the other end surface of the rotating body 4 (the side facing the lid body described later) is provided with the drive source and the rotating body 4 described later. For example, a cylindrical connecting tube 4e into which the tip of a joint for drivingly connecting is inserted is formed, and the connecting tube 4e is
For example, a U-shaped fitting groove 4f is provided as a recess.

Next, in FIGS. 4 and 5, reference numeral 5 is the housing 2
Is a lid body attached to the opening side (upper side in FIG. 4) of the casing 2, and a tightening screw or the like is used for the housing 2 (see FIG. 8).
It is fastened and fixed. It should be noted that the lid 5 has a restriction groove 5a, which constitutes one of the restriction means for restricting the rotation range of the rotating body 4, from a position corresponding to the first outflow port Po1 of the housing 2. It is recessed with a predetermined depth dimension to a position corresponding to the fourth outflow port Po4 (see FIG. 8).

Reference numeral 6 denotes an inflow port Pi and first to fourth outflow ports P on the inner peripheral surface of the casing 2 facing the rotating body 4.
o1 to Po4 are sealing means arranged so as to surround the openings, and are between the inflow port Pi and the inflow port 4b of the rotating body 4 and the first to fourth outflow ports Po1 to Po4.
The airtightness between Po4 and the outlet 4c of the rotating body 4 is maintained to prevent fluid from leaking into the housing 2. In the present invention, the sealing means 6 can minimize the contact area with the rotating body 4 because the rotating body 4 rotates in a state where the rotating body 4 is always in sliding contact with the sealing means 6, In order to sufficiently maintain the airtightness between the body 4 and the housing 2, for example, as shown in FIG. 9, the cross-sectional shape is formed into an X shape.

The cross-sectional shape of the sealing means 6 need not be limited to the above-mentioned shape as long as the contact area with the rotating body 4 can be minimized when the rotating body 4 is rotated. Absent. Further, if some means for maintaining airtightness is provided between the housing 2 and the rotating body 4, it is not necessary to dispose the sealing means 6 specially.

Next, in FIGS. 4 and 5, 7 is a pressing means inserted between the rotating body 4 and the lid 5, and the pressing means 7 is connected to the first outflow port Po1. At the time of supplying the fluid to the member (in the present invention, for example, the air diffuser of the wastewater treatment means included in the garbage treatment device described later), a force that can at least resist the force received by the rotating body 4 (for example, in the present invention Is rotated by the influence of water pressure when ejecting fluid (air) from the aeration means when the water depth of the contact aeration tank and aerobic solubilization tank of the wastewater treatment means provided in the garbage treatment device described later is maximum. Body 4 has inflow port Pi
And a force of a magnitude that can prevent the first to fourth outflow ports Po1 to Po4 from being biased (pushed) in the direction away from the rotating body 4 to the sealing means 6 side. It is configured to press.

Since the pressing means 7 is configured to press the rotating body 4 with a predetermined force as described above, at least one of the contact surfaces between the rotating body 4 and the lid body 5, The pressing means 7 is provided with a means that allows the pressing means 7 to slide with respect to the rotating body 4 and the lid 5 when the rotating body 4 rotates.

FIG. 10 shows an example in which a coil spring is used as the pressing means 7, for example.
As shown in (a), a sliding member 7a made of, for example, a silicon sheet or the like may be interposed on the contact surface between the pressing means (coil spring) 7 and the rotating body 4 and the lid body 5, as shown in FIG.
As shown in (b), the end of the pressing means (coil spring) 7 that comes into contact with the rotating body 4 and the lid 5 is processed into a shape that is slidable with respect to the rotating body 4 and the lid 5 ( Figure 10
In (b), the end portion is bent to the left in the figure to prevent contact with the rotating body 4 and the lid body 5).
The presence of the pressing means (coil spring) 7 effectively prevents the rotation of the rotating body 4 from being hindered. The pressing means 7 may use a spring member other than the coil spring, or may use a rubber member or the like.

Next, in FIGS. 4 and 5, reference numeral 8 is a drive source (for example, a stepping motor or the like) for rotationally driving the rotating body 4, and the drive source 8 has its rotating shaft 8 a through a joint 9. In a state in which it is drivably connected to the rotating body 4,
It is fastened and fixed to the lid body 5 by using a fastening screw or the like (not shown).

Further, the joint 9 for drivingly connecting the drive source 8 and the rotating body 4 is, as shown in FIGS.
A fixing means 9a such as a set screw for fixing the rotary shaft 8a of the drive source 8 and the joint 9 at the central portion thereof so as to be able to cooperate with each other;
A restricting means that is fitted to a base end portion that is fitted into a restricting groove 5a recessed in the lid body 5 (see FIGS. 4 and 8) and that restricts the rotation range of the rotating body 4 in combination with the restricting groove 5a. And the regulating shaft 9b constituting the connecting cylinder 4e, which is inserted into the connecting cylinder 4e of the rotating body 4 protruding from the lid 5 and inserted into the connecting cylinder 4e.
And a connecting shaft 9c that fits into the fitting groove 4f that is recessed in.

The fixing means 9a may have, for example, a rectangular tip end of the rotary shaft 8a instead of using a set screw or the like.
It may be formed in a convex shape or the like, and may be formed by providing a concave groove portion on the joint 9 side with which the tip end portion of the rotary shaft 8a is fitted. Further, the regulation shaft 9b may be formed integrally with the joint 9. Further, the tip end side of the joint 9 and the connecting cylinder 4e of the rotating body 4 are
The joint 9 and the rotating body 4 may be jointly connected to each other without using the connecting shaft 9c by forming the joint member 9 into a rectangular shape or the like.

Next, with reference to FIG. 1, an example will be described in which the flow path switching means 1 of the present invention is provided in the garbage processing apparatus A. FIG. 1 is a schematic configuration diagram showing an example in which the flow path switching means 1 of the present invention is provided in a garbage processing apparatus A. Figure 1
In Fig. 11, 11 is a crushing means such as a disposer for finely crushing kitchen waste such as vegetable waste and leftover food (hereinafter referred to as water-containing organic waste), which is provided in a sink (not shown) installed in a kitchen or the like. There is. 12 is a group that stores the water-containing organic waste crushed by the crushing means 11 together with kitchen drainage (hereinafter referred to as sewage) generated when washing foodstuffs and tableware, etc. It is installed by being buried or the like, and is connected to the crushing means 11 via a drain pipe 11a.

Next, 15 is a pumping means for quantitatively pumping up the water-containing organic waste stored in the assembly 12 together with the sewage to the solid-liquid separation means described later. As shown in FIGS. 1 and 2, the pumping means 15 supplies a pump (air lift pump) 16 housed and installed in the assembly 12 and air (compressed air) from an air supply means described later to the pump 16. An air supply pipe a1, a slurry transfer pipe 17 for transferring slurry such as water-containing organic waste pumped up by a pump 16 to a solid-liquid separation means, and a float switch for detecting the storage amount (water level) of the aggregate 12 And the detection means 18 such as.

For example, as shown in FIG. 2, the pump 16 has its legs 16b fixed to the bottom of the pump housing 16a, and is floated near the bottom surface of the pump 12. is set up. It should be noted that the introduction cylinder 1 equipped with a check valve 16c is provided on the lower side of the pump casing 16a.
6d are connected to each other and are configured so that the sewage and the water-containing organic waste stored in the collecting basin 12 can be introduced into the pump casing 16a.

On the other hand, on the upper side of the pump casing 16a, the air supply pipe a1 and the slurry transfer pipe 17 are installed in parallel in a watertight structure in parallel with each other with their bases properly introduced into the pump casing 16a. The base of the air supply pipe a1 is slightly below the ceiling of the pump casing 16a, and conversely, the base of the slurry transfer pipe 17 is near the bottom of the pump casing 16a close to the check valve 16c. It is open. Incidentally, the air supply pipe a1 and the slurry transfer pipe 17
It is needless to say that the length is not limited to the above, and may be set to an arbitrary length in consideration of slurry transfer efficiency and the like.

Next, in FIG. 1, 20 is a solid-liquid separation means for separating the slurry of the water-containing organic waste and the like pumped from 12 collected by the pumping means 15 into solid waste and sewage. The liquid separating means 20 separates, for example, the slurry of the water-containing organic waste or the like flowing into the container 20a into sewage and solid waste by a filtering member (not shown), and the sewage is sewage drain pipe 20b. The solid waste is discharged to the sewage treatment means described later via
The transfer means (not shown) such as rotary blades, which is intermittently driven by a drive source (not shown), transfers water while draining water by a predetermined distance, and sequentially discharges it to a solid waste processing means described later via a discharge cylinder 20c. Is configured.

Reference numeral 21 is a solid waste treatment means for reducing the volume of the solid waste separated from the wastewater in the solid-liquid separation means 20 by performing a predetermined treatment (microorganism treatment, drying treatment, etc.), and 22 is the above-mentioned solid waste treatment means. A storage tank for storing the waste discharged after being subjected to volume reduction processing in the solid waste processing means 21, which is installed below the solid waste processing means 21, and is discharged to the storage tank 22. Waste is stored (stored) for a certain period (for example, one month), or
When the storage tank 22 is full, it is discarded.

Reference numeral 25 is a wastewater treatment means for cleaning the wastewater separated from the solid waste in the solid-liquid separation means 20. As shown in FIG. 1, the wastewater discharged from the solid-liquid separation means 20 is contacted with the wastewater. The aeration tank 26, the precipitation tank 27, and the aerobic solubilization tank 28 are each configured to be purified by predetermined purifying means and discharged to a public sewer or the like through a drain pipe 27a.

In the contact aeration tank 26, as shown in FIG. 1, water-containing organic waste which is fine solid matter (eg, egg shell, fine shell shell, sand, etc.) deposited on the bottom of the contact aeration tank 26. Residue recovery means 26a for recovering the residue to the solid-liquid separation means 20, and fresh air is intermittently supplied to the wastewater to grow and multiply aerobic microorganisms, and the wastewater is treated as the primary treated water. Aeration means 26b (for converting organic components in wastewater into sludge) and a contact member (not shown) (for example, made of a synthetic resin formed into a honeycomb shape) for adhering aerobic microorganisms favorably and promoting their growth and proliferation. (Member formed on)
And are provided.

A communication pipe 29, which communicates with the contact aeration tank 26, is connected to the settling tank 27 by piping.
The sludge that has been removed (by solid / liquid separation) from the primary treated water flowing from the contact aeration tank 26 through the communication pipe 29 by gravity settling and accumulated on the bottom of the precipitation tank 27 is regularly adjoined. Sludge recovery means 27 returned to the aerobic solubilization tank 28
b is provided. Further, fresh air is supplied to the aerobic solubilization tank 28 by intermittent aeration, and the precipitation tank 27 is supplied.
An aeration means 28a for aerobically treating the sludge returned from the above and decomposing it into water and carbon dioxide to reduce the volume is immersed / installed.

Next, in FIG. 1, 30 is a pumping means 15
Pump 16 and residue recovery means 26 of sewage treatment means 25
a, air diffusion means 26b, 28a, and sludge recovery means 27b, which is an air supply means for supplying air (compressed air) through the flow path switching means 1 as required, and is composed of, for example, a diaphragm type blower. , By supplying the air sucked by the blower at a predetermined pressure,
It is used as a drive source for 26a, 26b, 27b and 28a. The blower forming the air supply means 30 is not limited to the diaphragm type, but may be a rotary type or a piston type.

In this embodiment, the flow path switching means 1
To the inflow port Pi of the sewage treatment means 25 via the air supply pipe a2, and to the first outflow port Po1 of the sewage treatment unit 25 via the air supply pipe a3.
b, 28a, the second outflow port Po2 is connected to the pump 16 of the pumping means 15 via the air supply pipe a1, and the third outflow port Po3 is connected to the sewage treatment means via the air supply pipe a4. 25 of the residue recovery means 26a, and the fourth outflow port Po4 is connected to the sludge recovery means 27b of the wastewater treatment means 25 via the air supply pipe a5.

Further, in the present embodiment, the flow path switching means 1, the crushing means 11, the solid-liquid separation means 20, the solid waste treatment means 21, and the air supply means 30 are set in advance by the control means (not shown). The drive control is smoothly and favorably performed according to the control program. Further, the pump 16 of the pumping means 15 and the residue collecting means 2 of the sewage treatment means 25
The air supply time to the 6a, the air diffusing means 26b and 28a, and the sludge collecting means 27b is also controlled according to a control program preset in the control means (not shown).

Next, an example of the operation of the garbage processing apparatus A equipped with the flow path switching means 1 of the present invention will be described with reference to FIGS. 1, 8 and 11 to 14. Here, before the operation of the crushing means 11, the air sent from the air supply means 30 flows from the air supply pipe a2 to the inflow port Pi of the casing 2 of the flow path switching means 1 to the rotating body 4. Inlet 4b → communication passage 4a of rotating body 4 → outlet 4 of rotating body 28
c → first outflow port Po1 of housing 2 → air supply pipe a
3 through the aeration means 26b, 28a of the sewage treatment means 25
(See FIG. 11A).

First, crushing means 11 such as a disposer
The water-containing organic waste such as vegetable waste and leftover rice that has been thrown into the machine is finely crushed by driving the crushing means 11 by operating an operation switch (not shown), and thereafter, together with tap water or sewage (kitchen drainage). Collect through the drainage pipe 11a and discharge to 12. When the crushing treatment of the water-containing organic waste is completed, the crushing means 11 is stopped by operating an operation switch (not shown).

Subsequently, the water-containing organic waste and sewage crushed by the crushing means 11 flow into the collecting basin 12, and the detection means 18 installed in the collecting lump 12 causes the water level in the collecting basin 12 to reach a predetermined water level. When it is detected that
The air supply unit 3 is instructed by a command from a control unit (not shown).
The flow passage (air supply pipe) is switched by the flow passage switching unit 1 so that the air sent from 0 can be supplied to the pump 16 of the pumping unit 15.

That is, the drive source 8 of the flow path switching means 1 is driven by a command from the control means, and as shown in FIG. 11 (a), the first outflow connected to the air diffusing means 26b, 28a. As shown in FIG. 12, the rotating body 4 that connects the working port Po1 and the inflow port Pi connected to the air supply means 30 via the communication passage 4a is connected to the pump 16 of the pumping means 15. The second outflow port Po2 and the inflow port Pi are rotated to a position where they communicate with each other via the communication passage 4a. Then, when the rotating body 4 rotates to a position where the second outflow port Po2 and the inflow port Pi communicate with each other through the communication passage 4a, the drive source 8 is driven by a command from the control means. Stop.

At this time, the rotating body 4 is pressed by the pressing means 7 with a predetermined force and is in contact with the sealing means 6, but the sealing means 6 minimizes the contact area with the rotating body 4. It is formed in a shape that allows
Moreover, since sliding means (see FIG. 10) is provided on the contact surface between the pressing means 7 and the rotating body 4 and the lid 5,
It is possible to satisfactorily and surely prevent the rotation of the rotating body 4 from being obstructed by the sealing means 6 and the pressing means 7 so that the drive source 8 is overloaded.

Further, in the present invention, for example, the air is continuously delivered from the air supply means 30 even while the rotating body 4 is rotating, and furthermore, the air is supplied to the rotating body 4.
From the side facing the one end surface (the lower side in FIG. 4) of the housing 2
Therefore, the rotating body 4 is slightly pushed back by the air against the urging force of the pressing means 7, and rotates while maintaining the minimum necessary contact with the sealing means 6. As a result, the rotating body 4 can be
Can be smoothly rotated without imposing an excessive load on the drive source 8.

By the switching operation of the flow path switching means 1, the air sent from the air supply means 30 is supplied from the air supply pipe a2 to the inflow port Pi of the housing 2 of the flow path switching means 1.
→ Inlet 4b of the rotating body 4 → Communication passage 4a of the rotating body 4 → Outlet 4c of the rotating body 4 → Second outflow port Po2 of the housing 2
→ Pump 16 of the pumping means 15 via the air supply pipe a1
It will be supplied to the (pump housing 16a). Due to the supply of the air, the pressure inside the pump casing 16a rises (becomes a positive pressure), and the water-containing organic waste in the pump casing 16a is transferred to the solid-liquid separation means 20 together with the sewage through the slurry transfer pipe 17. Transport (pump up).

By the switching operation of the flow path switching means 1, the air supply to the air diffusing means 26b, 28a of the sewage treatment means 25 is stopped, so that the air diffusing means 26b, 28a.
The aeration process in the contact aeration tank 26 and the aerobic solubilization tank 28 equipped with a is temporarily stopped.

Then, when the preset air supply time (for example, 10 seconds) has elapsed, the flow path switching means 1 temporarily stops the supply of air to the pump 16. That is, the drive source 8 is driven by a command from a control means (not shown) so that the rotating body 4 is connected to the inflow port Pi and the first outflow port Po1 connected to the air diffusing means 26b and 28a. It is rotated to a position where it communicates via the passage 4a (see FIG. 11 (a)). As a result, the air sent from the air supply means 30 is again supplied to the air diffusers 26b and 28a, and the aeration process in the contact aeration tank 26 and the aerobic solubilization tank 28 is restarted.

On the other hand, the second outflow port Po2 connected to the pump 16 is, as shown in FIGS. 11 (a) and 11 (b), via a communication groove 4d provided on one end face of the rotating body 4. The pump 1 connected to the second outflow port Po2 is opened to the atmosphere by communicating with the opening 3.
The inside of the pump casing 16a of No. 6 is communicated with the atmosphere, and the inside of the pump casing 16a is returned from the positive pressure state to the normal pressure state. As described above, when the inside of the pump casing 16a is returned to the normal pressure state by opening to the atmosphere, the check valve is generated in the inside of the pump casing 16a due to the head pressure generated by the sewage accumulated in the aggregate 12. 16c is opened, and water-containing organic waste and sewage enter.

Further, while the aeration process is being carried out in the contact aeration tank 26 and the aerobic solubilization tank 28, in the solid-liquid separation means 20, the water-containing water which is transported together with the sewage from the pump 12 is collected by the pump 16. The organic waste is separated into solid waste and sewage by a filtration member (not shown), the sewage is discharged to the contact aeration tank 26 via the sewage drainage pipe 20b, and the solid waste is rotated by a rotary blade (not shown). For example, the container 20a is intermittently transferred by a predetermined distance in the clockwise direction so that it does not overlap with the next hydrated organic waste, etc., by driving the transfer means such as.

When the solid / liquid separation work in the solid / liquid separation means 20 is completed, the supply of air to the air diffusing means 26b, 28a is once stopped. That is, the drive source 8 is driven by a command from a control means (not shown), so that the rotating body 4 communicates with the inflow port Pi and the second outflow port Po2 connected to the pump 16 via the communication passage 4a. Rotate to the position (see FIG. 12). As a result, the air supply means 3
The air sent from 0 is supplied to the pump casing 16a of the pump 16 again, and is collected by the pump 16 12
Resumes the work of transporting (pumping) water-containing organic waste from.

At the time of re-driving the pump 16, water-containing organic waste and sewage are collected in the pump casing 16a while the pump 16 is stopped by the sewage stored in the assemble 12. The check valve 16c is generated by the generated head pressure.
Since it is opened and infiltrated, the water-containing organic waste can be immediately pumped (conveyed) to the solid-liquid separation means 20 together with the sewage when the pump 16 is restarted.

In the present invention, for example, the work of conveying (pumping) the water-containing organic waste by the pump 16 and the aeration treatment and solid-liquid separation means 20 in the contact aeration tank 26 and the aerobic solubilization tank 28 are carried out. The solid / liquid separation work in step 3 is alternately performed multiple times. Then, for example, the detection means 1
After the 8th is turned on and the fifth transportation (pumping) work of the water-containing organic waste is completed, a control means (not shown)
The drive source 8 is driven in response to a command from the rotary body 4 to a position where the inflow port Pi and the first outflow port Po1 connected to the air diffusing means 26b and 28a communicate with each other through the communication passage 4a. It is rotated (see FIG. 11 (a)) and kept in the contact aeration tank 26 and the aerobic solubilization tank 28 for a predetermined time (for example, 3).
Aeration processing is performed for a second (at this time, the solid-liquid separation means 20 is not operated), and then the drive source 8 is driven again by a command from the control means to move the rotating body 4 to the inflow port Pi this time. The third outflow port Po3 connected to the residue collecting means 26a is rotated to a position where it communicates with the third outflow port Po3 via the communication passage 4a (see FIG. 13).

The air sent from the air supply means 20 by the switching operation of the flow path switching means 1 is the air supply pipe a2.
→ Inflow port Pi of the casing 2 of the flow path switching unit 1 → Inflow port 4b of the rotating body 4 → Communication passage 4a of the rotating body 4 → Outlet port 4c of the rotating body 4 → Outlet port Po3 of the casing 2 → Air Supply pipe a
Then, the gas is supplied to the residue collecting means 26a of the contact aeration tank 26 via 4 and the residue collecting means 26a is operated.

By the operation of the residue collecting means 26a, the mud-like residue consisting of fine solids and the like deposited on the bottom of the contact aeration tank 26 flows into the container 20a of the solid-liquid separating means 20, The water-containing organic waste that has already been transported into the container 20a is placed (collected) on the bed layer. Then, when a preset air supply time (for example, 3 seconds) has elapsed, the supply of air to the residue collecting means 26a is stopped and the operation of the residue collecting means 26a is stopped. That is, the drive source 8 of the flow path switching means 1 is driven by a command from a control means (not shown), and the rotating body 4 is again driven by the inflow port Pi.
And a second outflow port Po2 connected to the pump 16 are rotated to a position where they communicate with each other via the communication passage 4a (see FIG.
2), the conveyance (pumping) of the water-containing organic waste and the like by the pump 16 is restarted.

As described above, after the residue recovery work is completed, the flow path switching means 1 performs a switching operation until the pump 16 resumes the transportation (pumping) of the water-containing organic waste or the like. In the liquid separating means 20, solid / liquid separation work of the water-containing organic waste and the residue is performed, and the solid waste separated from the sewage is not shown so as not to overlap with the water-containing organic waste to be conveyed next time. By driving a transfer means such as a rotary blade, the transfer is carried out for a predetermined distance, and the solid / liquid separation work is further continued.

Then, after the preset air supply time (for example, 10 seconds) has elapsed, the air supply to the pump 16 is temporarily stopped. That is, the drive source 8 is driven by a command from a control means (not shown) so that the rotary body 4 is connected to the inflow port Pi and the first outflow port Po1 connected to the air diffusing means 26b and 28a through the communication passage 4a. The contact aeration tank 2 is rotated to a position where it communicates with each other (see FIG. 11A).
6. Restart the aeration process in the aerobic solubilization tank 28.

As described above, after the residue collecting work by the residue collecting means 26a is completed, in the present invention, for example, the water level in the gathering basin 12 is lowered, and the detecting means 18 becomes O.
Until FF, transportation (pumping) of water-containing organic wastes by the pump 16 and aeration treatment and solid-liquid separation means 20 in the contact aeration tank 26 and aerobic solubilization tank 28 are performed.
The solid / liquid separation work in step 2 is alternately performed. When the detecting means 18 is turned off, the pump 16 carries (pumps) the water-containing organic waste and the like, the aeration process in the contact aeration tank 26 and the aerobic solubilization tank 28, and the solid-liquid separation means 20 in the solid state. The liquid separation work is alternately executed a predetermined number of times (for example, 15 times), and thereafter, the diffusing means 2
Only the supply of air to 6b and 28a (aeration process in contact aeration tank 26 and aerobic solubilization tank 28) is continued.

In the present invention, for example, the detection means 1 is used after the residue recovery work by the residue recovery means 26a is completed.
By the time 8 is turned off, transportation (pumping) of water-containing organic wastes, aeration treatment in the contact aeration tank 26 and aerobic solubilization tank 28, and solid / liquid separation operation in the solid separation means 20 are performed. When it is continuously executed a predetermined number of times (for example, 50 times), the drive source 8 of the flow path switching means 1 is positioned. This is because the drive source 8 is repeatedly rotated forward and backward during the switching operation of the flow path switching means 1.
A backlash in a gear (not shown) included in the drive source 8 to reduce its rotation speed to a predetermined speed and transmit the rotation speed to the rotation shaft 8a, and a joint connected to the rotation shaft 8a of the drive source 8. 9, between the outflow ports Po1 to Po4 (any one place) and the outflow port 4c of the rotating body 4 due to rattling or the like caused by dimensional tolerances between the respective components such as the rotating body 4 connected to the joint 9. This is to prevent the position from being displaced.

Next, in the solid-liquid separation means 20, the solid waste separated from the waste water is driven by a transfer means such as a rotary blade (not shown) while the pump 16 is stopped, so that the solid-liquid separation means 20. Is sequentially discharged to the solid waste treatment means 21 through the discharge pipe 20c, and the solid waste treatment means 21 performs a predetermined treatment (microorganism treatment, drying treatment, etc.).
The volume reduction processing is performed by performing. The volume-reduced waste is solid waste treatment means 21.
Is discharged to a storage tank 22 installed below the storage tank 22 and stored for a predetermined period (for example, one month), or the storage tank 22.
Discard when is full.

Further, in the solid-liquid separation means 20, the sewage separated from the water-containing organic waste and the residue is treated as the sewage drain pipe 20.
It is discharged to the contact aeration tank 26 of the sewage treatment means 25 through b. In the contact aeration tank 26, the pump 16
Since the aeration means 26a supplies fresh air during suspension of the aerobic microorganisms, the aerobic microorganisms adhering to the contact member (not shown) grow and multiply. The wastewater discharged from the tank is cleaned by aerobic decomposition by the aerobic microorganisms, and is sequentially discharged as primary treated water through the communication pipe 29 to the settling tank 27.

The primary treated water discharged to the settling tank 27 is subjected to solid-liquid separation by gravity settling, and the fine solid matter contained in the primary treated water is sludge at the bottom of the settling tank 27 as sludge. The secondary treated water from which the fine solids have been removed while being accumulated is discharged to the public sewer or the like through the drainage pipe 27a in which the supernatant water is sequentially connected to the sedimentation tank 27. The sludge accumulated on the bottom of the settling tank 27 is collected by the sludge collecting means 27b every predetermined time (for example, 5 hours).
It is returned to the adjacent aerobic solubilization tank 28.

Subsequently, when the sludge accumulated on the bottom of the settling tank 27 is returned to the adjacent aerobic solubilization tank 28, a command from a control means (not shown) gives a command every predetermined time (for example, 5 hours). By driving the drive source 8 of the flow path switching means 1,
The rotating body 4 is rotated to a position where the inflow port Pi and the fourth outflow port Po4 connected to the sludge collecting means 27b communicate with each other through the communication passage 4a (see FIG. 14), and the air supply means 30 The air sent out is supplied from the air supply pipe a2 → the inflow port Pi of the housing 2 of the flow path switching unit 1 → the inlet 4b of the rotor 4 → the communication passage 4a of the rotor 4 → the outlet 4c of the rotor 4 → It is supplied to the sludge collecting means 27b via the outflow port Po4 of the housing 2 → the air supply pipe a5, and the sludge collecting means 27b is operated.

By the operation of the sludge collecting means 27b, the sludge accumulated on the bottom of the settling tank 27 is sequentially returned to the aerobic solubilization tank 28. Then, when a preset air supply time (for example, 7 seconds) has elapsed, the supply of air to the sludge collecting means 27b is stopped and the operation of the sludge collecting means 27b is stopped. That is, the drive source 8 is driven by a command from a control means (not shown) so that the rotating body 4 is connected to the inflow port Pi and the first outflow port Po1 connected to the air diffusing means 26b and 28a. The contact aeration tank 26, which is rotated to a position where it communicates via the passage 4a (see FIG. 11A),
The aeration process in the aerobic solubilization tank 28 is restarted.

As a result, the sludge transferred to the aerobic solubilization tank 28 is subjected to aerobic treatment (biodegradation and solubilization) by the fresh air supplied from the air supply means 30 through the aeration means 28a. Treatment) is performed and decomposed into water and carbon dioxide to reduce the volume. Further, the supernatant water aerobically treated in the aerobic solubilization tank 28 passes through a flow hole (not shown) formed in a partition between the aeration tank 26 and the contact aeration tank 26, and enters the contact aeration tank 26. After flowing in and being purified again, it is discharged to the settling tank 27 as primary treated water.

In the flow path switching means 1, the rotating body 4 is provided with the regulating groove 5a formed in the lid 5 and the rotating body 4.
Since the rotation range is regulated by the regulation means which is fitted to the joint 9 that drivably connects the driving source 8 and the regulation shaft 9b which is fitted to the regulation groove 5a, Due to the presence of the restricting means, the rotating body 4 is located at a position corresponding to the outflow port Po1 (position shown by a solid line in FIG. 8) or at a position corresponding to the outflow port Po4 (1 in FIG. 8).
It is possible to satisfactorily prevent rotation beyond the position indicated by the dashed line.

Further, since the communication passage 4a of the rotating body 4 is formed such that its flow passage cross-sectional area is larger than the flow passage cross-sectional area of each of the outflow ports Po1 to Po4, the air flow rate due to pressure loss It is possible to appropriately supply the air to the pump 16 of the pumping means 15, the residue collecting means 26a of the sewage treatment means 25, the air diffusing means 26b and 28a, and the sludge collecting means 27b in a state where the decrease is properly prevented.

Further, the rotating body 4 is at least resistant to the force that the rotating body 4 receives when supplying a predetermined force by the pressing means 7 (air is supplied to the air diffusing means 26b, 28a connected to the outflow port Po1). Since it is pressed to the inflow and outflow ports Pi, Po1 to Po4 side by (possible force),
At the time of starting (restarting) the supply of air to the air diffusers 26b, 28a, etc. of the sewage treatment means 25, the rotating body 4 is pushed back against the biasing force of the pressing means 7 under the influence of the water pressure, and the air is scattered. It becomes possible to reliably prevent the air from being unable to flow out (jet) from the air means 26b, 28a and the like to the contact aeration tank 26, the aerobic solubilization tank 28 and the like.

Further, the communication groove 4d provided in the rotating body 4
Communicates the opening 3 with the second outflow port Po2 only when the inflow port Pi and the first outflow port Po1 are in communication with each other through the communication passage 4a (see FIG. 11).
(See (a) and (b)), otherwise, the outflow ports Po1 to Po4, which are not in communication with the inflow port Pi via the communication path 4a, are not in communication with the opening 3. Therefore (see FIGS. 12 to 14), the first, third, fourth
Since the outflow ports Po1, Po3, Po4 are inadvertently opened to the atmosphere, it is possible to surely prevent a harmful effect.

Next, a second embodiment of the flow path switching means 1 of the present invention will be described with reference to FIGS. As shown in FIG. 15, the flow path switching means 1 of the second embodiment is required to have its outflow ports Po1 to Po4 corresponding to the shape (depth, size, etc.) of the sewage treatment means 25. The opening area (flow path) corresponding to the air supply quantity to the sewage treatment means 25 is changed so that the opening area (flow path area) having a size corresponding to the air supply quantity can be appropriately replaced. area)
Inflow and outflow ports Pi, P formed with
The o1 to Po4 are configured to be attachable to and detachable from the housing 2.

Then, the inflow and outflow ports Pi and Po1 to Po4 are attached (fixed) to the housing 2.
In this case, as shown in FIG. 15, the ports Pi and Po1 to
Collar 40 formed on the base end side of Po4 (left side in FIG. 15)
To a fitting portion 41 recessed in a predetermined surface (right side in FIG. 15) of the housing 2, and a sealing member 42 for preventing air leakage or the like.
And the ports Pi, Po1 to Po4 of the housing 2 are arranged (fitted), a thin plate-shaped fixing plate 43 is attached to the ports Pi, Po1.
To Po4, with the seal member 42a interposed therebetween, as shown in FIG. 16, by tightening and fixing using a screw member or the like, each of the ports Pi, Po1 to Po4
The casing 2 and the fixing plate 43 allow the sealing member 42,
It is sandwiched with 42a interposed.

As a result, each of the ports Pi, Po1 to P1
The o4 can be collectively fixed to the housing 2 by the fixing plate 43. In addition, each of the ports Pi, Po
1 to Po4 may be individually attached to the housing 2 instead of being fixed to the housing 2 collectively using the fixing plate 43. Further, the inflow port Pi may be integrally formed with the housing 2, and only the first to fourth outflow ports Po1 to Po4 may be detachable from the housing 2.

Next, the third embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. In the present invention, the second outflow port Po2 connected to the pump 16 during the aeration process in the contact aeration tank 26 and the aerobic solubilization tank 28.
Is communicated with the opening 3 through the communication groove 4d provided in the rotating body 4 to open the inside of the pump casing 16a of the pump 16 to the atmosphere, but the inside of the pump casing 16a is suddenly opened. When released to the atmosphere, sewage and water-containing organic waste stored in the assembly 12 rapidly infiltrate into the pump housing 16a by opening the check valve 16c in accordance with the release of the atmosphere, As a result, the water-containing organic waste may infiltrate into the air supply pipe a1 introduced into the pump housing 16a, causing a problem such as clogging the air supply pipe a1.

For this reason, in the flow path switching means 1 of the third embodiment, means is provided to prevent the inside of the pump casing 16a from being suddenly opened to the atmosphere. Examples of the means include, for example, the drive source 8 of the flow path switching means 1 immediately before the communication groove 4d provided in the rotating body 4 and the second outflow port Po2 connected to the pump 16 start communication. It is conceivable to control the drive by a control means (not shown) so as to reduce the rotation speed. As a result, the speed at which the communication groove 4d and the second outflow port Po2 communicate with each other becomes slow, so that the second outflow port Po2 and the opening portion 3 rapidly communicate with each other via the communication groove 4d. It is possible to prevent the inside of the pump housing 16a from being suddenly opened to the atmosphere.

As another means, for example, FIG.
As shown by, the communication portion r is connected to at least one of the communication groove 4d provided in the rotating body 4 and the outflow port Po2 connected to the pump 16 (in FIG. 17, the communication groove 4d is connected).
It is also possible to form the communication groove 4d and the outflow port Po2 in a shape (for example, an elliptical shape) that allows the communication groove 4d and the outflow port Po2 to gently communicate with each other. Conceivable. As a result, it is possible to favorably prevent the second outflow port Po2 and the opening portion 3 from rapidly communicating with each other through the communication groove 4d and suddenly opening the interior of the pump housing 16a to the atmosphere.

The communicating portion r has a deeper depth at a portion close to the communicating groove 4d or the second outflow port Po2, and becomes more distant from the communicating groove 4d or the second outflow port Po2. Alternatively, the depth dimension may be shallow.

Although the present invention has been described based on the respective embodiments, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. This can be easily guessed.

For example, in the present invention, the pumping means 15
An example in which a pump using air (air lift pump) is used as the pump 16 has been described, but the pump 16 is not limited to this, and an electric pump or the like may be used. In this case, for example, as shown in FIG. 18, a predetermined outflow port of the flow path switching means 1 and the collecting port 12 are connected via a communication pipe R, and when necessary (for example, when driving the pump 15a). In addition, the predetermined outflow port is communicated with the opening portion 3 (not shown) formed in the housing 2 to collect 12 inside while being communicated with the atmosphere by the pump 15a. When the slurry such as water-containing organic waste stored in the pump is pumped up to the solid-liquid separation means 20, the pressure in the aggregate 12 decreases due to the decrease in the liquid level accompanying the pumping of the slurry, and the crushing means 11 It is possible to favorably prevent problems such as breakage of the sealing water of a trap (not shown) provided in the middle of the drain pipe 11a connecting the collecting box 12 and
It is very convenient.

Further, the housing 2 of the flow path switching means 1 is not limited to a rectangular planar shape, and may be formed in a circular shape or the like. Further, the inflow port Pi and the first to fourth outflow ports Po1 to Po4 may be formed in an angular shape, an oval shape, or the like, instead of being formed in a cylindrical shape.

Further, in the present invention, the flow path switching means 1
An example in which the garbage treatment device A is equipped with is described above.
Needless to say, the present invention is not limited to this, and can be used in other devices. Also,
The flow path switching means 1 has been described with respect to an example in which the air sent from the air supply means 30 is used by appropriately switching the flow paths and supplying the same. It is needless to say that it can be used also in the case of switching and supplying.

[0112]

According to the first aspect of the present invention, since the opening portion for communicating the predetermined outflow port with the outside of the housing is formed in the housing, the predetermined outflow port can be provided. It becomes possible to easily connect the pipes and members to be connected to the outside of the housing, and as a result, the pipes and members can be connected to the inside of the pipes and members through the opening portions as needed without using any special means. The air can be taken in smoothly and satisfactorily.

According to the second aspect of the present invention, since the inflow port, the outflow port, and the opening portion are arranged on the same predetermined surface of the housing, the flow path switching device has its outer dimensions. Can be properly miniaturized. Moreover, the work of connecting the pipes to the inflow port and the outflow port can be smoothly performed, which is convenient.

According to the third aspect of the present invention, the inflow port and the outflow port are arranged concentrically around the inflow port on the predetermined surface of the housing.
It is not necessary to form a plurality of communication passages that connect the inflow port and the predetermined outflow port in the rotating body, and the configuration of the rotating body can be simplified.

According to the fourth aspect of the present invention, since the flow passage cross-sectional area of the communication passage of the rotating body is formed larger than the flow passage cross-sectional area of the outflow port, the communication passage and the outflow port are formed. This is convenient because it is possible to satisfactorily reduce the pressure loss during the period and reliably discharge the required amount of fluid from the outflow port.

According to the fifth aspect of the present invention, the rotating body is provided with means for communicating the predetermined outflow port and the opening portion with each other when necessary. It is possible to reliably eliminate the adverse effects caused by communication or communication of an outflow port other than the predetermined outflow port with the outside of the housing.

According to the sixth aspect of the present invention, there is provided means for preventing the predetermined outflow port from rapidly communicating with the outside of the housing through the opening portion or preventing the communication from being rapidly released. Therefore, it is possible to satisfactorily eliminate the adverse effects caused by the pipes and members connected to the predetermined outflow port being in rapid communication with the outside of the housing or the communication being released (closed). .

In the invention according to claim 7, since at least one of the housing and the rotating body is provided with a regulating means for regulating the rotating range of the rotating body, the rotating body exceeds the predetermined rotating range. It is possible to favorably prevent the rotation and the obstacle for the switching operation of the flow path.

In the invention of claim 8, the opening area of the outflow port is formed to have a size corresponding to the amount of fluid supplied to the member connected to the outflow port. It is not necessary to provide a means for reducing the flow rate of the fluid in the middle of the pipe connecting the port for use and the member, and as a result, the number of parts can be favorably reduced and the flow path switching device can be configured simply. Is possible.

In the invention according to claim 9, since the outflow port can be attached to and detached from the housing, it can be appropriately replaced with a port having an opening area corresponding to a member connected to the outflow port. As a result, it is convenient to prepare only the outflow port without preparing a plurality of types of flow path switching devices corresponding to the members connected to the outflow port, which is convenient.

According to the tenth aspect of the invention, since the outflow port is fixed to the housing at once by using the fixing plate, the outflow port is attached (fixed) to the housing.
Work can be performed smoothly, satisfactorily, and easily.

According to the eleventh aspect of the invention, since the outflow ports are individually fixed to the casing, only the outflow ports that need to be replaced can be attached to and detached from the casing. It is very convenient.

According to the twelfth aspect of the present invention, the rotating member is applied with a predetermined force (a force capable of at least resisting the force received by the rotating member when the fluid is supplied to the member connected to the outflow port) by the pressing means. Since the pressure is applied to the inflow and outflow ports, the rotating body is pushed back against the biasing force of the pressing means when the fluid supply is started (restarted), and the fluid is discharged to each outflow port. It is possible to satisfactorily prevent the supply of power to the connected members.

According to the thirteenth aspect of the present invention, at least one of the contact surfaces between the pressing means and the housing and the rotating body allows the pressing means to slide with respect to the housing and the rotating body when the rotating body rotates. Since the means of is provided, even if the rotating body is pressed by the pressing means with a predetermined force,
The rotating body can smoothly and satisfactorily rotate without obstructing the rotation thereof to switch the flow path.

In the fourteenth aspect of the present invention, since the opening is provided with a means for preventing foreign matter from entering from the outside,
It is possible to reliably prevent the occurrence of the problem that the inflow port and the outflow port are clogged due to the entry of the foreign matter.

According to the fifteenth aspect of the invention, since the sealing means is provided between the housing and the rotating body, the fluid leaks into the housing when the inflow port and the predetermined outflow port communicate with each other. It is possible to prevent the fluid from being supplied to the member connected to each outflow port during the rotation of the rotating body, which is convenient.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a garbage processing device provided with a flow path switching device of the present invention.

FIG. 2 is a vertical sectional front view showing a pumping means.

FIG. 3 is a front view showing the flow path switching device of the present invention.

FIG. 4 is a vertical sectional side view showing a flow path switching device of the present invention.

FIG. 5 is a vertical cross-sectional side view showing the flow path switching device of the present invention in an exploded manner.

6A is an enlarged sectional view showing an example of an outflow port, FIG. 6B is an enlarged sectional view showing another example of an outflow port, FIG.
(C) is an expanded sectional view showing still another example of the outflow port.

7A is a front view of the rotating body, FIG. 7B is a rear view of the rotating body, and FIG. 7C is a vertical side view of the rotating body.

FIG. 8 is a plan view showing a regulating means for the lid body and the rotating body.

FIG. 9 is an enlarged cross-sectional view showing a sealing means.

FIG. 10A is a sectional view showing an example of means for sliding the pressing means with respect to the rotating body and the lid when the rotating body is rotated, and FIG. 10B is also a sectional view showing another example. FIG.

FIG. 11A is a front view showing a state in which the inflow port and the first outflow port communicate with each other, and FIG. 11B shows the opening portion and the second outflow port through the communication groove. FIG. 3 is an enlarged view of a main part showing a state in which the two communicate with each other.

FIG. 12 is a front view showing a state in which the inflow port and the second outflow port communicate with each other.

FIG. 13 is a front view showing a state in which an inflow port and a third outflow port communicate with each other.

FIG. 14 is a front view showing a state in which an inflow port and a fourth outflow port communicate with each other.

FIG. 15 is a vertical sectional side view showing a flow path switching device in a second embodiment of the present invention.

FIG. 16 is a front view showing a flow path switching device according to a second embodiment of the present invention.

FIG. 17 is a plan view showing an enlarged main part of a rotating body of the flow path switching device according to the third embodiment of the present invention.

FIG. 18 is a schematic configuration diagram showing a fourth embodiment of the present invention.

FIG. 19 is a cross-sectional plan view showing an example of a conventional flow path switching device.

[Explanation of symbols]

1 Flow path switching means 2 housing 3 openings 4 rotating body 4a communication passage 4d communication groove 5 Lid 6 sealing means 7 Pressing means 8 drive source Pi inflow port Po1 to Po4 outflow ports

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Katsuhiko Anfuku             1 Aichi-cho, Kasugai-shi, Aichi Aichi Electric Co., Ltd.             Inside the company (72) Inventor Yoichi Kojima             1 Aichi-cho, Kasugai-shi, Aichi Aichi Electric Co., Ltd.             Inside the company F term (reference) 3H067 AA12 CC32 DD03 DD12 DD32                       EA05 EA06 FF17 GG03 GG26                       GG28 GG29                 4G068 AA03 AB11 AB17 AD21 AD39                       AE02 AF02

Claims (15)

[Claims] 1. A casing having one inflow port connected to a fluid supply source and a plurality of outflow ports to which a plurality of fluid-supplied members are individually connected, and a casing provided in the casing. A rotating body that is movably accommodated and that has a communication passage that selectively communicates the inflow port and a predetermined outflow port; a pressing unit that presses the rotating body with a predetermined pressure; A drive source for rotationally driving the housing, an opening portion that is opened in the housing and communicates a predetermined outflow port with the outside of the housing, and a control unit that drives and controls the driving source. A flow path switching device characterized by being configured. 2. The flow path switching device according to claim 1, wherein the inflow port, the outflow port, and the opening portion are arranged on a predetermined same plane of the housing. apparatus. 3. The housing is configured such that an inflow port is provided at a center of a predetermined surface of the housing, and an outflow port and an opening are provided at concentric positions. The flow path switching device according to claim 1. 4. The flow path switching device according to claim 1, wherein the communication path of the rotary body is configured to have a flow path cross-sectional area larger than that of the outflow port. 5. The rotating body is provided with means for communicating a predetermined outflow port and an opening portion when necessary on the surface side facing the outflow port. The flow path switching device according to 1 or 4. 6. The predetermined outflow port is provided with a means for preventing rapid communication with the outside of the housing through the opening or preventing the communication from being rapidly released. The flow path switching device according to claim 1 or 5. 7. The flow path switching device according to claim 1, wherein at least one of the housing and the rotating body is provided with a regulating means for regulating a rotation range of the rotating body. 8. The outlet port has an opening area
7. The flow path switching device according to claim 1, wherein the flow path switching device has a size corresponding to an amount of fluid supplied to a member connected to the outflow port. 9. The outflow port is configured to be attachable to and detachable from the housing.
The flow path switching device according to 4, 5, 6, 8. 10. The flow path according to claim 9, wherein the outflow port is arranged at a predetermined position of the housing and is fixed to the housing collectively by using a fixing plate. Switching device. 11. The flow path switching device according to claim 9, wherein the outflow port is individually fixed to a predetermined position of the housing by using a screw member or the like. 12. The pressing means presses the rotating body to each port side with a force that can resist at least a force received by the rotating body when supplying fluid to a member connected to the outflow port. The flow path switching device according to claim 1, wherein the flow path switching device is configured. 13. The pressing means is provided with a means for sliding the pressing means with respect to the casing and the rotating body when the rotating body is rotated, on at least one of contact surfaces of the casing and the rotating body. The flow path switching device according to claim 1 or 12, wherein the flow path switching device is configured as follows. 14. The flow path switching device according to claim 1, wherein said opening portion is provided with means for preventing foreign matter from entering from the outside. 15. The flow path switching device according to claim 1, further comprising sealing means provided between the housing and the rotating body.