JP2004290843A - Crushing pressure feed apparatus - Google Patents

Crushing pressure feed apparatus Download PDF

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Publication number
JP2004290843A
JP2004290843A JP2003087455A JP2003087455A JP2004290843A JP 2004290843 A JP2004290843 A JP 2004290843A JP 2003087455 A JP2003087455 A JP 2003087455A JP 2003087455 A JP2003087455 A JP 2003087455A JP 2004290843 A JP2004290843 A JP 2004290843A
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Japan
Prior art keywords
crushing
pump
unit
pumping
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003087455A
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Japanese (ja)
Inventor
Shosaku Noda
Hirofumi Sato
裕文 佐藤
昇作 野田
Original Assignee
Toto Ltd
東陶機器株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Toto Ltd, 東陶機器株式会社 filed Critical Toto Ltd
Priority to JP2003087455A priority Critical patent/JP2004290843A/en
Publication of JP2004290843A publication Critical patent/JP2004290843A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crushing pressure feed apparatus capable of stably and sufficiently crushing excrement not depending on an amount of washing water of a toilet bowl and piping condition of a pressure feed drain pipe. <P>SOLUTION: The crushing pressure feed apparatus is provided with a crushing part for crushing the excrement by a rotating crushing impeller; a crushing casing covering the above crushing part and storing contaminated water and the excrement; a pump part for pressure feeding the contaminated water and the crushed excrement; and a force feed drain pipe connected to a downstream of the pump part. The apparatus is provided with a drain inhibition means for inhibiting the discharge of contaminated water from the crushing casing so as to retain the water level to a degree that at least the crushing impeller is immersed underwater during crushing by the above crushing part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a crushing / pumping device for crushing and forcibly discharging filth, and more particularly to a crushing / pumping device connected to a toilet.
[0002]
[Prior art]
As shown in FIG. 8, the conventional crushing and pumping device has a pump casing 23 for discharging crushed sewage disposed at a lowermost position as a main part for crushing and discharging sewage flowing from a drainage device such as the toilet 7. The crushing unit 10 is arranged near the upper part, and the motor 8 is arranged on the upper part. The drive shaft 50 of the motor 8 is coaxial with the cutter 13 that pulverizes waste in the pulverization unit 10 and the pump blade 22 that drains the pulverized wastewater into the pump casing 23 to the outside. A pulverizing casing 15 is arranged so as to cover the pulverizing unit 10.
The filth and sewage discharged from the toilet 7 flow into the crushing unit 10 and are crushed by the cutter 13 rotated by the motor 8. At the same time, the pump blades 22 also rotate, and are pulverized to discharge dirt and wastewater to the outside through the pressurized drainage pipe 5.
According to this, since the crushing unit 10 is close to the pump casing 23, the crushing unit 10 is relatively submerged during the crushing and pressure feeding driving, so that the crushing efficiency is improved. In addition, since the motor 8 is located at the uppermost end, the motor 8 does not submerge, a watertight structure is not required, and the motor 8 is simple, and there is little trouble. In addition, the configuration is made compact. (For example, refer to Patent Document 1.)
[0003]
[Patent Document 1]
No. 56-13015 (p. 238, Fig. 3)
[0004]
[Problems to be solved by the invention]
The amount of flush water in the toilet bowl flowing into the crushing and pumping apparatus varies from a conventional 20 L to a recent water saving 6 L. Therefore, in the pulverizing / pumping device of Patent Document 1, when the amount of flush water in the toilet bowl is small, the pulverizing blades rotate without being submerged, so that pulverization becomes insufficient, and unpulverized dirt accumulates in the pulverization unit, and the wastewater is contaminated. There was a problem of blocking the inflow.
In addition, the discharge amount of the pump unit varies depending on the diameter and length of the pressure drainage pipe connected downstream of the crushing / pressure feeding device. Therefore, in the pulverizing / pumping device of Patent Document 1 in which the pulverizing unit and the pumping unit are simultaneously driven, when the discharge amount of the pump unit is large, the water level in the pulverizing / pumping device decreases rapidly, and the time during which the pulverizing blades are submerged. Is short and pulverization is insufficient. Therefore, there is a problem that uncrushed filth accumulates in the crushing part and hinders inflow of sewage.
[0005]
The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a crushing / pumping method that can stably and satisfactorily pulverize filth regardless of the amount of flush water in a toilet bowl or the piping condition of a pumping / drainage pipe. It is to provide a device.
[0006]
[Means for Solving the Problems and Functions / Effects]
In order to achieve the above object, a crushing and feeding device according to claim 1 comprises a crushing section for crushing waste with a rotating crushing blade, a crushing casing for covering the crushing section and storing sewage and filth, and sewage and crushed filth. And a pumping drainage pipe connected downstream of the pump section, wherein the water level is maintained at least to the extent that the crushing blades are submerged during the crushing of the crushing section. As described above, the apparatus is provided with drainage suppressing means for suppressing discharge of wastewater from the crushing casing.
According to the present invention, the discharge of the wastewater from the pulverizing casing is suppressed by the drainage suppressing means, and the wastewater is kept at least to the extent that the pulverizing blades are submerged during the pulverization of the waste, so that the pulverization is performed favorably.
Therefore, irrespective of a small amount of washing water or a piping condition of a pressure feed drain pipe, stable and good pulverization is possible, and waste residue and waste accumulation in a pulverizing part and a pressure feed device are eliminated.
[0007]
The invention according to claim 2 is an invention that can be used as an embodiment of the invention according to claim 1, wherein the drainage suppressing means is an opening / closing means provided in the pressure feeding drainage pipe. .
According to the present invention, since the opening / closing means is provided in the pumping drainage pipe for discharging sewage in the crushing and pumping device, it is possible to suppress drainage from the crushing and pumping device to the outside and adjust the water level in the crushing and pumping device. . Specifically, the amount of water discharged from the pressure-feeding drainage pipe is reduced by the opening / closing means at the time of crushing, so that the water level in the crushing / pressure-feeding device can be prevented from lowering, and the water level required for crushing can be maintained. Further, in a standby state in which the crushing / pumping device is not used, the drainage pipe is closed by the opening / closing means so that the sewage side can be cut off, and the sanitation of the crushing / pumping device is improved. In addition, at the time of drainage, by gradually opening the water, the water hammer phenomenon caused by the conventional rapid drainage operation can be eliminated, and the durability and damage of the pressure feeding drain pipe path caused by the water hammer phenomenon are eliminated. For example, the durability and safety of the system are improved.
[0008]
The invention according to claim 3 is an invention that can be used as an embodiment of the invention according to claim 1, wherein the drainage suppression means is an opening / closing means provided at a suction port of the pump unit. Features.
According to the present invention, the opening / closing means is provided at the suction port of the pump, and the drainage is stopped before the suction port without being sucked from the pump. The required water level can be maintained. At the same time, it is possible to stop the drainage in the crushing and pumping device without pressurizing the drainage pumping tube by pumping when the pump blades are rotating, so that there is no drainage leakage to the outside and the crushing process can be performed safely. It is. In addition, since it is provided inside the pumping device, a special space for installing the opening / closing means other than the pumping device is not required, and a compact design is possible.
[0009]
The invention according to claim 4 is an invention that can be used as an embodiment of the invention according to claims 1 to 3, wherein the pump unit is a spiral pump that pumps sewage by a rotating pump blade. Further, the drainage suppressing means is a switching means for switching the pump blade between forward rotation and reverse rotation.
Here, the spiral pump is a pump in which water is swirled by a rotating pump blade 22 as shown in FIG. 9 and drained by the centrifugal force. At this time, the drain port 70 opens in a tangential direction to the turning direction of the water when the pump blade 22 rotates counterclockwise. Therefore, drainage efficiency is good. If the rotation direction is the normal rotation direction, the rotation in the opposite direction opens the drain port 70 in the direction opposite to the turning direction of the water, so that the drainage efficiency is significantly alienated. Therefore, a considerable difference in drainage efficiency occurs between the forward rotation and the reverse rotation.
According to the present invention, the switching means switches between forward rotation and reverse rotation of the pump blade so as to utilize the difference in drainage efficiency, and discharges sewage from the crushing and pumping device by rotating the pump blade in reverse during crushing. When pumping wastewater, the pump blades are rotated forward to increase the amount of drainage. Therefore, the pulverization can be performed while maintaining the water level in the pulverizing / pressure feeding device. In particular, in a crushing and feeding device that drives the crushing wing and the pump wing by the same motor, the motor is rotated in the reverse direction to crush the waste, and then the sewage is discharged as the forward rotation, so that good crushing can be performed, and the structure is compact and compact. It becomes a simple crushing and feeding device.
[0010]
The invention according to claim 5 is an invention which can be used as an embodiment of the invention according to claim 4, wherein the pump blade has a pivot structure for releasing water pressure received during reverse rotation. .
Here, the pivot structure means that the blades constituting the pump blades are rotatably moved with one side as a fulcrum, open when receiving the resistance of water during forward rotation, and closed when receiving the resistance of water during reverse rotation, depending on the rotation direction. It is a structure that opens and closes.
ADVANTAGE OF THE INVENTION According to this invention, since a pump blade closes a wing | blade at the time of reverse rotation by a pivot structure, and releases hydraulic pressure, a pump effect stops and it cannot drain. Further, according to this method, the power load on the pump blade at the time of reverse rotation is reduced, and a pulverizing / pumping device with good operation efficiency can be provided.
[0011]
The invention according to claim 6 is an invention that can be used as an embodiment of the invention according to claims 1 to 4, wherein the grinding blade and the pump blade are driven by the same motor, and the drainage suppression is performed. The means is a shaft separating means for separating the drive shaft of the motor from the pump blade.
According to the present invention, the drive shaft of the motor and the pump blade can be temporarily separated by the shaft separating means, and the driving force of the motor can not be transmitted to the pump blade. Therefore, at the time of crushing, the shaft detaching means is activated to suppress discharge of sewage from the pump section, and the water level in the crushing casing can be maintained. Further, according to this method, the power load on the pump blade at the time of pulverization can be reduced, and a pulverizing / pumping device with good operation efficiency can be provided.
Here, the shaft detaching means is, for example, a ratchet mechanism, a clutch mechanism, or the like. The ratchet mechanism is a mechanism that makes it impossible to transmit stress due to idle rotation in one direction.The clutch mechanism has contact parts that are divided into the power side and the load side, and attracts force such as electromagnet force, hydraulic pressure, water pressure, etc. A mechanism that connects or disconnects power transmission by frictional force of the contact surface by attaching and detaching a contact portion between the power side and the load side using pressure.
[0012]
The invention according to claim 7 is characterized in that a crushing section for crushing the filth with a crushing wing rotating, a crushing casing for covering the crushing section and storing sewage and filth, and rotating the sewage and the crushed filth by the rotational force of a pump blade. A pulverizing / pumping device including a pump unit for pumping and a pumping drainage pipe connected downstream of the pump unit, wherein a water level is maintained at least to an extent that the pulverizing blades are submerged during pulverization of the pulverizing unit. And a water supply means for supplying water to the pulverizing casing.
Thus, the water supply means is provided in the pulverizing casing, and the water is supplied into the pulverization casing at the time of pulverization by the water supply means, so that pulverization can be performed while maintaining the water level of the pulverization unit.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a cross-sectional view including a main part of the apparatus according to the first embodiment. In the figure, solid arrows indicate the flow direction of water, and wavy arrows indicate the water level. A broken line indicates a control sequence.
[0014]
According to FIG. 1, the pulverizing and feeding apparatus of the present invention has the following configuration.
The crushing / pumping device includes a water tank 2 having a defecation inlet 4 for introducing sewage discharged from a sanitary device (not shown), a crushing unit 10 having crushing blades 12 for crushing inflowing sewage, and A crushing casing 15 having a plurality of small holes 16 for discharging waste, a pump wing 22 that is coaxially connected to a drive shaft 50 of the crushing wing 12 and rotates below the crushing section 10, and a pump containing the pump wing 22. A pump unit 24 having a casing 23, a pumping drain 5 for discharging sewage from the pump unit 24 to the outside, and a motor 8 for driving a driving shaft 50 of the crushing blade 12 and the pump blade 22. ing.
Further, the pulverizing / pumping device of the present invention includes an opening / closing unit 9 disposed in the pulverizing / drainage pipe 5, a water level detecting unit 30 provided in the pulverizing casing 15, and a water supply valve capable of supplying water from a water supply port 41 provided above the water storage tank 2. A water supply section 40 having a water supply pipe 42 and a water supply pipe 43, and a control section 32 for controlling driving or opening / closing of the motor 8, the opening / closing means 9 and the water supply valve 4 are provided.
Here, the opening / closing means 9 is means capable of opening / closing the pressure-feeding drainage pipe 5, and is, for example, a ball valve, a butterfly valve, a needle valve, a pinch valve, or the like. The water level detecting means 30 is, for example, a system based on differential pressure measurement, a system for energizing by electrodes, or the like.
The water level L1 is a height at which the water level detection means 30 is installed, and is above the crushing blade 12. The water level L0 is a lower limit water level at which the pump unit can discharge the sewage in the water storage tank 2.
[0015]
FIG. 1 illustrates the flow of wastewater, and FIG. 6 illustrates the movement of each element and the water level of the crushing unit 10.
In FIG. 1, sewage containing filth from a sanitary device (not shown) flows into the pulverizing casing 15 from the defecation inlet 4. The small hole 16 provided in the pulverizing casing 15 and the inside of the water tank 2 communicate with each other. Sewage flows into the water tank 2 through the small hole 16 and the water level in the pulverizing casing 15 and the water tank 2 exceeds L0 to L1. Ascend to position. In addition, the filth which cannot pass through the small hole 16 stays in the crushing casing 15. The water level detecting means 30 detects that the water level is equal to or higher than L1, closes the opening / closing means 9 provided on the pressure-feeding drain pipe 5, starts the motor 8, rotates the drive shaft 50, and removes dirt from the crushing blades 12. Smash. However, since the opening / closing means 9 is closed, the pump blade 22 rotates, but does not discharge the wastewater from the water storage tank 2. Thus, the water level in the water storage tank 2 is maintained, and the crushing process is performed for a predetermined time at the water level at which the crushing blades 12 are submerged.
If the water level of the crushing unit 10 is less than L1, the water level detecting unit 30 communicates that the crushing water level is not an effective crushing water level to the control unit 32, and instructs the water supply valve 42 to be opened by a command from the control unit 32. . Then, the water supply valve 42 is opened, and water is supplied from the water supply port 41 through the water supply pipe 43 until the inside of the pulverization casing 15 becomes L1, and then the pulverization operation is performed. Note that the control unit 32 stops the water supply when the water level reaches L1.
After the crushing process is performed for a predetermined time, the opening / closing means 9 provided on the pressure-feeding drainage pipe 5 is gradually opened while the motor 8 is running, and the sewage in the water storage tank is removed by the action of the pump section 24 by the action of the pump section 24. It is sucked in from the bottom of 24 and gradually discharged to the outside. At the same time, the filth after the crushing in the crushing unit 10 is discharged to the outside together with the sewage. By gradually discharging, the water hammer phenomenon is mitigated, and problems such as loosening of the fixing part of the piping system, loosening of the connection part, water leakage due to disconnection, vibration to the piping main body and building structures, etc. are reduced, and crushing is performed. Prolonging the mechanical life of the pumping device and the surroundings provided with the device.
When the opening / closing means 9 is opened, the water level in the water storage tank 2 decreases, the water level reaches L0, and almost all the wastewater in the water storage tank 2 is drained, the motor 8 is stopped, and a series of operations ends. The opening / closing means 9 may be closed at the same time as the end of a series of operations, and the space on the sewage side can be isolated from the crushing / pumping device until the next time the crushing / pumping device starts up, which is sanitary.
[0016]
FIG. 6 is a time chart of the pulverizing and feeding device in the first embodiment of FIG. In the figure, the time indicates that the time advances from the left to the right.
According to FIG. 6, in the initial state, the initial water level of the crushing casing 15 (or the water tank 2) is L0, the opening / closing means 9 is open, and the motor is stopped. As soon as the sewage from the sanitary equipment flows into the crushing casing 15, the opening / closing means 9 is closed and the discharge of the sewage from the crushing casing 15 is stopped. As a result, the water level of the pulverizing casing 15 rapidly rises from L0 to L1 in S1 second, and at the same time, the motor 8 is driven by a signal from the water level detecting means 30, and the pulverization blade starts pulverization of waste. After that, the inflow of sewage from the sanitary equipment continues, and the water level in the crushing casing 15 continues to rise, and the inflow ends at Lu.
The crushing operation is performed for S2 seconds with the opening / closing means 9 closed. During this time, the water level of the pulverizing casing 15 is equal to or higher than L1 and the pulverization is performed for a predetermined time of S2 seconds, so that the waste can be pulverized satisfactorily. After the crushing for S2 seconds, the opening / closing means 9 is opened, the drainage by the pump unit 24 is continued for S3 seconds, the water level in the crushing casing 15 or the water tank 2 returns from Lu to L0, and the motor 8 is stopped.
If the motor 8 is operated without operating the opening / closing means 9, the water level behaves like a broken line and rises to L3 without reaching the water level range (L1 to Lu) effective for pulverization. Lower. Then, the waste to be pulverized remains in the pulverized casing 15 in an unpulverized state because the water level of the pulverized casing 15 is insufficient.
[0017]
As described above, even when the amount of washing water is small, the water level of the crushing section 10 can be secured by closing the opening / closing means 9 provided on the pressure-feeding drainage pipe 5 at the time of crushing. Can be provided.
In addition, the drive shaft 50, the crushing unit 10, and the pump unit 24 are configured coaxially, and a compact design can be achieved. Further, by closing the opening / closing means 9 at the end of the operation, it is possible to isolate the crushing and feeding device of the present case from the space on the sewage side, and it is possible to provide a sanitary crushing and feeding device. Further, it is possible to provide a pulverizing / pumping device which can operate while avoiding the water hammer phenomenon by performing a draining operation by adjusting the opening degree of the opening / closing means 9 provided in the drainage / pumping pipe.
[0018]
FIG. 2 is a cross-sectional view including a main part of the pulverizing and feeding apparatus according to the second embodiment. In the figure, solid arrows indicate the flow direction of water, and wavy arrows indicate the water level. A broken line indicates a control sequence. In addition, the same reference numerals are given to the same or corresponding portions as those in the above-described embodiment, and the detailed description is omitted.
[0019]
According to FIG. 2, the pulverizing and feeding device of the present case has the following configuration.
The crushing and pumping device of the present invention is configured such that the electromagnet 60 connected to the control unit 32 on the outer bottom surface of the water tank 2 and the pump suction port 25 can be opened and closed directly below the suction port 25 opened on the bottom surface of the pump casing 23. Means 9 are provided.
[0020]
In FIG. 2, filth and sewage flow from a sanitary device (not shown) into the water storage tank 2, and when the water level becomes L <b> 1, the water level detection unit 30 sends a signal to the control unit 32, drives the motor 8, and fixes the motor 8 to the drive shaft 50. The pump blade 22 thus rotated starts to suck sewage from the suction port 25. By the flow of the waste water by the suction, the opening / closing means 9 immediately below the suction port 25 is adsorbed to the suction port 25 and the suction port 25 is closed. Therefore, even if the motor 8 is operated for the pulverization process, the pump blade 22 moving coaxially with the pulverization blade 12 does not cause the suction of the sewage in the water storage tank 2. Good pulverization can be performed while maintaining the above conditions.
When the motor 8 is once stopped after a predetermined time from the start of the pulverization, the opening / closing means 9 closing the suction port 25 falls directly below the suction port 25 by its own weight, and the suction port 25 is opened. In this state, the electromagnet 60 is energized and the opening / closing means 9 is attracted and fixed by magnetic force, so that the opening / closing means 9 does not block the suction port 25 even during the operation of the pump, and the pump section 24 removes sewage in the water storage tank 2. Discharge.
Finally, the water level in the water storage tank 2 decreases, and when the water level becomes L0, the motor 8 is stopped, and at the same time, the energization of the electromagnet 60 ends.
[0021]
In this way, even when the amount of washing water is small, by closing the suction port 25 of the pump unit 24 by the opening / closing means 9 at the time of crushing, it is possible to solve the problem that the water level required for crushing cannot be secured and to operate soundly. Crushing and feeding device can be provided. Further, the drive shaft 50, the pulverizing section 10 and the pump section 24 are formed coaxially and are compact. Further, by providing the opening / closing means 9 inside the apparatus, it is possible to provide a pulverizing / pumping apparatus having an advantage that there is no damage due to water leakage unlike the case where the opening / closing means 9 is provided outside.
[0022]
FIG. 3 is a time chart of the pulverizing and feeding device according to the third embodiment. In the figure, the time indicates that the time advances from the left to the right.
The configuration is shown in FIG. 2, but the motor 8 is a DC motor capable of rotating forward and backward, and the electromagnet 60 and the opening / closing means 9 are not required. The forward rotation of the motor 8 is a rotation direction in which the pump unit 24 performs a normal pumping operation, and the reverse rotation is a rotation direction in which the crushing unit 10 performs a normal crushing operation. The same reference numerals are given to the same or corresponding parts as in the above-described embodiment, and the detailed description is omitted.
[0023]
The operation of the third embodiment will be described with reference to FIGS.
When the drainage from the sanitary equipment flows into the crushing unit 10, the water level in the crushing casing 15 or the water tank 2 rapidly rises from L0 to L1 in S1 second, and a signal is sent from the water level detection unit 30 to the control unit 32. . The control unit 32 rotates the motor 8 in the reverse rotation direction for S2 seconds, and the grinding blade 12 and the pump blade 22 fixed to the drive shaft 50 also rotate in the reverse rotation direction for S2 seconds. At this time, the inflow of drainage from the sanitary equipment is still continuing, and the water level of the crush casing 15 continues to rise and reaches Lu. The crushing unit 10 crushes the waste in the S2 seconds. Since the pump section 24 has a slight pumping function even in the reverse rotation, the wastewater in the water storage tank 2 is slightly discharged, and the water level in the crushing casing is slightly lowered.
At this time, the drainage head may be large depending on the construction conditions of the pressure feed drainage pipe 5, and in such a case, no drainage occurs at the time of reverse rotation of the pump portion, so that the water level drop of the crushing casing 15 is zero.
After S2 seconds from the reverse rotation of the motor 8, the motor 8 is rotated in the forward rotation direction for S3 seconds, and the crushing blade 12 and the pump blade 22 fixed to the drive shaft 50 also rotate in the reverse rotation direction for S3 seconds. . The pump unit discharges the sewage in the water storage tank 2 until the water level becomes L0 in S3 seconds. The pulverizing section 10 has a slight pulverizing action even in the forward rotation.
After 3 seconds from the start of the rotation of the motor, the water level becomes L0, the motor 8 is stopped, and a series of operations is completed.
[0024]
In this way, by performing the normal rotation after performing the reverse rotation operation for a certain period of time, the water level gradually decreases during the reverse rotation, but the water level of the crushing unit 10 can be changed to a water level that does not hinder the crushing. And good pulverization can be realized.
[0025]
FIG. 4 shows a ratchet mechanism, which is used as another aspect of the third embodiment, and is a shaft detaching means that is separated from the drive shaft when the pump blade rotates in the reverse direction. In the figure, the arrow of the solid line n indicates the forward rotation direction of the drive shaft 50, and the pump blade 22 rotates in the direction of the arrow of the solid line N. The arrow of the broken line r and the arrow of the broken line R indicate the reverse rotation direction.
[0026]
According to FIG. 4, the ratchet mechanism of the present invention has the following configuration.
The drive board 215 fixed to be able to transmit the rotational force from the drive shaft 50 includes a ratchet claw 218 for transmitting a rotational force in a specific direction to the pump blade base 210, and the ratchet claw 218 is provided in the ratchet groove provided on the drive board 215. 219 is slidably received. Even if the ratchet claw 218 is sunk into the ratchet groove 219 by the external force by the spring 216, the ratchet claw 218 can be returned to the original position by the disappearance of the external force.
The pump blade base 210 concentrically arranged relative to the outer peripheral surface of the drive board 215 has a pump blade claw 217 for reliably receiving stress from one surface of the ratchet claw 218 on its inner peripheral surface, and a pump blade base 210. It is provided with four pump blades 211 for converting the rotational force to the turning force of water from the outer peripheral side toward the center.
[0027]
The operation of the ratchet mechanism will be described with reference to FIG.
When the drive shaft 50 is rotated in the n direction, the ratchet pawl 218 can push the pump blade pawl 217 with the force F. Therefore, the pump blade base 210 rotates in the N direction at the same speed as the drive shaft 50. On the other hand, when the drive shaft 50 rotates in the r direction, the ratchet pawl 218 forms the surface on the rotation direction r side obliquely, and similarly, the collision surface of the pump blade claw 217 also forms the oblique surface. One of the component components of the collision stress “−F” is a force for pushing the ratchet claw 218 into the ratchet groove 219 provided on the drive board 215, and the ratchet claw 218 dives into the ratchet groove 219, and the drive board 215 and the pump The blade base 210 idles. The spring 216 returns the ratchet pawl 218 to its original position where the ratchet pawl 218 does not contact the pump blade pawl 217.
[0028]
As described above, the structure in which the rotational force from the drive shaft 50 is not transmitted to the pump blades 22 depending on the rotation direction can prevent the rotation of the pump blades 22 at the time of the reverse rotation of the motor. It is possible to eliminate wastewater from the tank and secure a water level effective for crushing. In addition, since there is no rotation of the pump blades 22 during pulverization, the power load for driving the pump blades 22 is reduced, and a pulverizing / pumping device with good operation efficiency can be provided.
In this embodiment, a ratchet mechanism is used.However, for example, a power transmission may be performed by a clutch mechanism by contact of a friction surface.In this case, contact and non-contact are performed only by forward rotation of the motor. The discharge of the sewage is suppressed by keeping the discharge of the sewage without transmitting to the pump blade, and the power of the motor is transmitted to the pump wing to discharge the sewage at the time of contact.
[0029]
FIG. 5 shows a pivot structure of a pump blade used as another aspect of the third embodiment. In the figure, the arrow of the solid line n indicates the forward rotation direction of the drive shaft 50, the pump blade 22 rotates in the direction of the arrow of the solid line N, and the mechanism moves in the direction of the solid arrow. Further, the arrow of the dashed line r, the arrow of the dashed line R, and the dashed arrow indicate the reverse rotation direction.
[0030]
According to FIG. 5, the pivot structure of the present invention has the following configuration.
The pump blade base 210 fixedly capable of transmitting the torque from the drive shaft 50 is provided with upright six pump blade plates 211 for converting the torque from the drive shaft 50 to the turning force of water on its surface. ing. One end of each pump blade plate 211 is rotatably connected to the pump blade base 210 by a pivot pin 212, and the other end slides against an arc-shaped guide groove 214 provided on the surface of the pump blade base 210 by a guide pin 213. It is movable.
[0031]
The operation of the pivot structure will be described with reference to FIG.
When the drive shaft 50 rotates in the n direction, the pump blade base 210 rotates in the N direction at the same speed. At this time, the pump blade 211 on the pump blade base 210 moves in the direction of the solid arrow in the figure along the guide groove 214 around the pivot pin 212 due to the centrifugal force in the F direction and the reaction force for stirring water. I do. Therefore, the pump blade base 210 rotates in a state where the pump blade plate 211 is radially scattered, so that the function as a pump can be generated.
On the other hand, when the drive shaft 50 rotates in the r direction, the pump blade base 210 rotates in the R direction at the same speed. At this time, the pump blade 211 on the pump blade base 210 tries to move to the solid arrow direction due to the centrifugal force in the F direction, but since the reaction force from water is larger, the pump blade 211 moves to the broken arrow direction in the drawing. It moves and fits in the position of the broken line in the figure. Therefore, the surrounding water rotates without swirling, and does not act as a pump.
[0032]
As described above, the pivot structure can release the water pressure or generate a pump action depending on the rotation direction, and when the motor rotates in the reverse direction, a water level effective for crushing can be secured. In addition, since there is no rotation of the pump blades 22 during pulverization, the power load for driving the pump blades 22 is reduced, and a pulverizing / pumping device with good operation efficiency can be provided.
[0033]
FIG. 7 is a cross-sectional view including a main part of the pulverizing / pumping device according to the fourth embodiment, and a solid line arrow in the drawing indicates a flow direction of water. The same reference numerals are given to the same or corresponding parts as in the above-described embodiment, and the detailed description is omitted.
[0034]
According to FIG. 7, the pulverizing and feeding device of the present case has the following configuration.
The pulverizing / pumping device includes a pulverizer 11 and a pulverizer 1. The crusher 11 includes a crushing casing 15 having a defecation inlet 4 for introducing sewage discharged from a sanitary device (not shown), a crushing unit 10 having a cutter 13 as crushing blades for crushing the inflowing sewage, and a cutter. A crushing motor 14 for driving the crusher 13 and a water level detecting means 30 for detecting a water level inside the crushing casing 15 are provided. The pump 1 is pumped by a pumping action, a communication passage 6 into which sewage from the crusher 11 flows, a water tank 2 for storing sewage, a pump blade 22, a pump motor 21 for driving the pump blade 22, and a pump. The pump includes a pumping drain 5 for guiding sewage to the outside of the water tank and a water level switch 31 for starting and stopping the pump motor 21 according to the water level in the water tank 2. The communication path 6 is provided with an opening / closing means 9 capable of adjusting drainage of sewage from the crusher 11 to the pressure feeder 1.
The control unit 32 is connected to the crushing motor 14, the water level detecting means 30, the opening / closing means 9, the pressure feeding motor 21, the water level switch 31, and the signal line.
[0035]
The flow of the sewage will be described with reference to FIG.
Sewage discharged from a sanitary device (not shown) flows into the pulverizing casing 15 from the defecation inlet 4, passes through the communication passage 6, and also flows into the water storage tank 2. When the inflow of sewage from the sanitary equipment ends or the amount of inflow decreases, the water level in the crushing casing 15 drops, and when the water level reaches a predetermined water level (a water level at which the cutter 13 is submerged), the water level detection means 30 To the control unit 32, and based on the signal, the opening / closing means 9 closes the communication path 6 and dams the discharge of wastewater from the crushing casing 15 to the water storage tank 2. In this state, that is, while the cutter 13 is substantially submerged by the waste water in the crushing casing 15, the crushing process is performed for a predetermined time.
Then, the opening / closing means 9 of the communication passage 6 is opened again, the wastewater is discharged from the crushing casing 15 to the water storage tank 2, the signal from the water level switch 31 starts the pumping motor 21, and the pump blade 22 rotates, The wastewater is discharged to the outside through the drainage pressure pipe 5.
[0036]
As described above, since the water level in the crushing casing 15 can be maintained at a predetermined level or more by the opening / closing means 9, when the amount of discharge from the sanitary equipment is small, the water level dispersed in the crushing casing 15 and the water storage tank 2 is effective for crushing. Can be secured, and good pulverization can be realized. Therefore, it is possible to provide a sound pulverizing / pumping device without causing unpulverized waste to remain or accumulate due to poor pulverization.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view including a main part of a crushing and feeding device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view including a main part of a pulverizing / pumping device according to a second embodiment of the present invention.
FIG. 3 is a time chart of a pulverizing and feeding device according to a third embodiment of the present invention.
FIG. 4 is a pump blade ratchet mechanism according to another aspect of the third embodiment of the present invention.
FIG. 5 is a pump vane pivot structure according to another aspect of the third embodiment of the present invention.
FIG. 6 is a time chart of the pulverizing and feeding device according to the first embodiment of the present invention.
FIG. 7 is a cross-sectional view including a main part of a pulverizing and feeding device according to a fourth embodiment of the present invention.
FIG. 8 is a cross-sectional view showing a conventional pulverizing and feeding device.
FIG. 9 is a sectional view showing a centrifugal pump.
[Explanation of symbols]
1 pumping machine
2 water tank
4 Defecation inlet
5 Pumping drain
6 connecting passage
7 Toilet bowl
8 motor
9 Opening / closing means
10 crushing unit
11 crusher
12 crushing wings
13 cutter
14 grinding motor
15 crushed casing
16 small holes
21 Pump motor
22 Pump blade
23 Pump casing
24 pump section
25 Pump inlet
30 Water level detection means
31 Water level switch
32 control unit
40 Water supply section
41 water inlet
42 water supply valve
43 water pipe
50 drive shaft
60 electromagnet
70 drainage outlet
210 Pump blade base
211 Pump blade
212 pivot pin
213 Guide pin
214 Guide groove
215 drive board
216 spring
217 Pump blade claw
218 Ratchet Claw
219 Ratchet groove

Claims (7)

  1. A crushing unit for crushing the waste with a rotating crushing blade, a crushing casing for covering the crushing unit and storing sewage and filth, a pump unit for pumping sewage and crushed filth, and connected downstream of the pump unit. A pumping drainage pipe, and a crushing pumping device comprising:
    A crushing and pumping device, comprising: drainage suppressing means for suppressing discharge of sewage from the crushing casing so as to maintain a water level to such an extent that the crushing blade is submerged during crushing of the crushing unit.
  2. The crushing / pumping device according to claim 1, wherein the drainage suppressing unit is an opening / closing unit provided in the pumping drainage pipe.
  3. The crushing and pumping device according to claim 1, wherein the drainage suppressing unit is an opening / closing unit provided at a suction port of the pump unit.
  4. 2. The pump unit according to claim 1, wherein the pump unit is a centrifugal pump that pumps sewage by a rotating pump blade, and the drainage suppressing unit is a switching unit that switches the pump blade between normal rotation and reverse rotation. 4. The pulverizing / feeding device according to any one of claims 1 to 3.
  5. The said pump blade has a pivot structure which relieves the hydraulic pressure received at the time of reverse rotation, The crushing pumping apparatus of Claim 4 characterized by the above-mentioned.
  6. The said grinding | pulverization blade and the said pump blade are driven by the same motor, The said drainage suppression means is a shaft separation | separation means which cuts off the drive shaft of the said motor and the said pump blade, Any one of Claims 1-4 characterized by the above-mentioned. Crushing and feeding device according to any one of the above.
  7. A crushing unit for crushing waste with a rotating crushing wing, a crushing casing for covering the crushing unit and storing sewage and filth, a pump unit for pumping sewage and crushed filth by the rotational force of a pump blade, and the pump unit And a pumping drainage pipe connected downstream of the crushing pumping device,
    A crushing and pumping device, comprising: a water supply means for supplying water to the crushing casing so as to maintain a water level to such an extent that the crushing blade is submerged during crushing of the crushing unit.
JP2003087455A 2003-03-27 2003-03-27 Crushing pressure feed apparatus Pending JP2004290843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003087455A JP2004290843A (en) 2003-03-27 2003-03-27 Crushing pressure feed apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003087455A JP2004290843A (en) 2003-03-27 2003-03-27 Crushing pressure feed apparatus

Publications (1)

Publication Number Publication Date
JP2004290843A true JP2004290843A (en) 2004-10-21

Family

ID=33401835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003087455A Pending JP2004290843A (en) 2003-03-27 2003-03-27 Crushing pressure feed apparatus

Country Status (1)

Country Link
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011088129A (en) * 2009-07-14 2011-05-06 Toto Ltd Solid material treatment device
JP2011088131A (en) * 2009-07-14 2011-05-06 Toto Ltd Solid material treatment device
CN106391242A (en) * 2016-10-31 2017-02-15 四川邑诚科技有限公司 Pulverizer
CN111167585A (en) * 2020-02-21 2020-05-19 郑州工业应用技术学院 Construction waste treatment device
CN112221642A (en) * 2020-11-16 2021-01-15 三门踱哒环保设备有限公司 Small-size old and useless timber rubbish reducing mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011088129A (en) * 2009-07-14 2011-05-06 Toto Ltd Solid material treatment device
JP2011088131A (en) * 2009-07-14 2011-05-06 Toto Ltd Solid material treatment device
CN106391242A (en) * 2016-10-31 2017-02-15 四川邑诚科技有限公司 Pulverizer
CN111167585A (en) * 2020-02-21 2020-05-19 郑州工业应用技术学院 Construction waste treatment device
CN112221642A (en) * 2020-11-16 2021-01-15 三门踱哒环保设备有限公司 Small-size old and useless timber rubbish reducing mechanism

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