JP2011147878A - Disposer and siphon drainage system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control stay of drainage occurring around a drainage outlet of water-area equipment. <P>SOLUTION: Air within a drainage introduction pipe 26 flows into an expandable-and-contractible chamber 30 to expand a bag body 28, allowing the air within the drainage introduction pipe 26 to enter the expandable-and-contractible chamber 30. The drainage from water-area equipment 16 thus flows down through the drainage introduction pipe 26 at a nearly free falling speed, or flows down smoothly through the drainage introduction pipe 26, which can control stay of drainage around the drainage outlet 16A of the water-area equipment 16. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a disposer and a siphon drainage system.

In recent years, siphon drainage systems have been proposed in place of conventional gradient drainage systems. The siphon drainage system includes a watering device and a siphon drainage pipe.
The siphon drain pipe is composed of a horizontal pull pipe that is piped along the floor slab with no gradient, and a vertical pipe that forms a hanging part. According to the siphon drainage system configured as described above, it is possible to improve drainage efficiency from the watering device by using siphon force (negative pressure) generated in the soot pipe.

By the way, what determines the performance in the siphon drainage system includes the amount of drainage and the siphon activation time.
The amount of wastewater treatment is a numerical value indicating how many liters of water can be drained per second when the siphon force is activated. Mainly, the length of the drainage introduction pipe connecting the watering device and the horizontal pipe, and the length of the horizontal pipe It depends on Sato.
If the amount of wastewater is small, draining time will be longer when washing the pool. Even if it is washed away, if the treated amount of the waste water is too small, if the treated amount is lower than the amount of water from the faucet, the water overflows from the drain port of the watering device.

  On the other hand, the siphon activation time is the time from the start of drainage until the siphon force is activated. When the siphon force is activated, the flow rate is increased at once, and a sufficient processing amount is obtained. However, before the siphon force is activated, the processing amount is extremely small. For this reason, water may overflow from the drain outlet of the watering device before the siphon force after the drainage starts.

On the other hand, the siphon drainage system disclosed by patent document 1 is proposed for the purpose of advancing siphon starting time.
The siphon drainage system disclosed in Patent Document 1 is a system in which a function for escaping air during positive pressure in a horizontal pulling pipe is added to a position immediately before the horizontal pulling pipe is suspended.

JP 2006-336321 A

In addition to accelerating the siphon activation time, stagnation of drainage in the vicinity of the drain outlet of the watering device is a problem immediately after drainage is started or during drainage.
This was due to the fact that the air in the drain pipe could not escape and this air became resistance and the drainage did not flow smoothly into the drain pipe.

  In particular, in a siphon drainage system that includes a disposer, wastewater flows along with the pulverized material, so pulverized material and wastewater tend to remain at the downstream end of the drainage introduction pipe, and the air in the drainage introduction pipe is discharged downstream. It is likely to be in a state that is difficult to be done. Therefore, in the siphon drainage system including the disposer, it is necessary to advance the siphon start-up time, but in particular, the stagnation of the drainage near the drainage port of the watering device is a problem.

  In view of the above facts, an object of the present invention is to provide a disposer and a siphon drainage system that can suppress stagnation of drainage generated in the vicinity of a drain outlet of a watering device.

  The disposer according to the first aspect of the present invention is provided in a disposer main body that pulverizes an input charged from a watering device and flows down to a drainage introduction pipe on which a siphon force acts, and a housing of the disposer main body, An expansion / contraction chamber that communicates with the introduction pipe and expands / contracts by air pressure.

In general, the disposer flows waste water together with the pulverized material, and therefore, even if siphon force is generated, the pulverized material and waste water may remain at the downstream end portion in the drain introduction pipe.
On the other hand, in the configuration of the first aspect, even when the air in the drainage introduction pipe is difficult to be discharged to the downstream side due to pulverized material or drainage collected at the downstream end in the drainage introduction pipe, When the drainage from the surrounding equipment flows through the drainage introduction pipe, the air in the drainage introduction pipe pressed by the drainage flows into the expansion / contraction chamber, and the expansion / contraction chamber is expanded by the air pressure. Thereby, since the air in the drainage introduction pipe passes into the expansion / contraction chamber, the drainage smoothly flows through the drainage introduction pipe, and the stagnation of the drainage near the drainage port of the watering device can be suppressed.
Moreover, the expansion of the size of the entire disposer due to the expansion / contraction room can be suppressed, and for example, the storage space under the kitchen can be widely used.

In the disposer according to the second aspect of the present invention, the expansion / contraction chamber is formed of a bag attached to an exhaust port of an air vent pipe connected to the drainage introduction pipe.
According to this configuration, the bag can be stored in any shape of housing.

The disposer according to the third aspect of the present invention is characterized in that the disposer body is connected to a drain outlet of the watering device, and includes a crushing portion for crushing an input charged into the drain outlet, and the bag body is crushed. It is provided in a housing surrounding the part.
According to this configuration, the housing protects the bag body and can prevent the bag body from being damaged by an external force.

In the disposer according to the fourth aspect of the present invention, the bag is attached to the housing so as to surround the housing of the disposer body.
According to this configuration, even when there is no space for providing the bag body in the housing, the bag body can be integrated with the housing.
Further, since the bag body is exposed to the external air, it can be reliably expanded and contracted.

In the disposer according to the fifth aspect of the present invention, the housing constitutes a part of the bag.
According to this structure, the material cost which forms the film body of a bag body can be reduced.

In the disposer according to the sixth aspect of the present invention, the connection portion between the drainage introduction pipe and the air vent pipe is located above the siphon activation reference head.
Here, the siphon activation reference head is the minimum water level required for generating siphon force. Since the air vent pipe is connected to the drainage introduction pipe above the siphon activation reference head, Drainage does not easily flow into the room from the drainage pipe.

A disposer according to a seventh aspect of the present invention includes a vent valve that allows outside air to pass through the drainage introduction pipe and prevents drainage from passing through the drainage introduction pipe to the outside.
According to this configuration, when the siphon force acts and the air is pulled downstream along with the drainage in the drainage introduction pipe, the air that has escaped into the expansion / contraction chamber flows into the drainage introduction pipe. Even when the air in the drainage introduction pipe is pulled downstream after it disappears, the air flows in from the vent valve, so that the pressure in the drainage introduction pipe is less likely to be negative.
Thereby, problems caused by the negative pressure in the drainage introduction pipe, for example, noise generated by sucking air in a water-sealed drain trap of a watering device, breakage of the drain trap, and the like can be solved.

In the disposer according to the eighth aspect of the present invention, the inflow resistance of air flowing from the expansion / contraction chamber to the drainage introduction pipe side is smaller than the inflow resistance of air flowing from the vent valve to the drainage introduction pipe side.
According to this configuration, the inflow resistance of air flowing from the expansion chamber to the drainage introduction pipe side is smaller than the inflow resistance of air flowing from the vent valve to the drainage introduction pipe side. That is, air is more likely to flow into the drainage introduction pipe from the expansion / contraction chamber than from the vent valve.
For this reason, when siphon force acts and air is pulled with the drainage in the drainage introduction pipe to the downstream side, the air that has escaped into the expansion / contraction chamber first flows into the drainage introduction pipe, and then the air flows in from the vent valve. As a result, the interior of the expansion / contraction chamber is reduced and returned to its original state, so that even when the water is drained from the watering device, the air in the drainage introduction pipe pressed by the drainage can escape into the expansion / contraction chamber. Thus, even when drainage is repeated, it is possible to suppress stagnation of drainage near the drainage port of the watering device.

The disposer according to a ninth aspect of the present invention is a self-sealing drain trap in which the vent valve is always open on the upstream side, can be opened and closed on the downstream side, and is closed in a free state.
According to this configuration, since the ventilation valve and the drain trap are shared, the number of parts can be reduced.

In the disposer according to the tenth aspect of the present invention, the vent valve is provided in a housing of the disposer body.
According to this configuration, an increase in the size of the entire disposer due to the installation of the vent valve can be suppressed, and for example, the storage space under the kitchen can be widely used.

  The siphon drainage system according to the eleventh aspect of the present invention comprises a disposer that pulverizes an input charged from a watering device and allows the pulverized material to flow down along with the drainage, and communicates with the disposer, and drains from the disposer. A drainage introduction pipe that flows downward, a housing that is disposed in the disposer, communicates with the drainage introduction pipe, expands and contracts by air pressure, communicates with the drainage introduction pipe, and extends laterally, and the drainage introduction pipe And a horizontal pipe that communicates with the horizontal pipe and extends downward, and generates a siphon force by causing the waste water from the horizontal pipe to flow down.

According to this configuration, the drainage from the watering device flows downward in the drainage introduction pipe after passing through the disposer. The drainage that has flowed downward in the drainage introduction pipe further flows laterally in the horizontal pulling pipe. Next, the drainage flows down the vertical pipe and siphon force is generated. The siphon force induces drainage in the drainage introduction pipe, the horizontal pulling pipe, and the vertical pipe, and promotes the drainage.
Here, in the configuration of the twelfth aspect, even when the air in the drainage introduction pipe is not easily discharged to the downstream side due to the drainage accumulated at the downstream end or the like in the drainage introduction pipe, the drainage from the watering device When the water flows through the drainage introduction pipe, the air in the drainage introduction pipe pressed by the drainage escapes into the expansion / contraction chamber, so that the drainage flows smoothly through the drainage introduction pipe.

  Since this invention was set as the said structure, the retention of the waste_water | drain produced near the drain outlet of a watering device can be suppressed.

It is the schematic which shows the whole structure of the siphon drainage system which concerns on 1st Embodiment. It is a partial cross section perspective view of the disposer concerning a 1st embodiment of the present invention. It is the schematic which showed a mode that waste_water | drain stays in the upstream end part of R pipe | tube of a waste_water | drain introduction pipe, and a horizontal draw pipe. It is the schematic which shows the state by which drainage was started from the watering device. It is the schematic which shows the state into which the air in a waste_water | drain introduction pipe | tube flowed in the expansion / contraction chamber. It is the schematic which shows the state which the waste_water | drain which flowed through the inside of a waste_water | drain introduction pipe | tube flows through a horizontal drawing pipe, flows down a vertical pipe, and the siphon force began to act. It is the schematic which shows the state in which the air in an expansion / contraction room flowed into the waste_water | drain introduction pipe. It is the schematic which shows the state which air flowed into the waste_water | drain introduction pipe | tube through the ventilation valve. It is the figure which showed the pressure change in the waste_water | drain introduction pipe at the time of flushing in a watering device, the state change of the bag member accompanying the pressure change, and the ventilation | gas_flowing state of a vent valve. It is the schematic which shows the modification which used the self-sealing drain trap as a ventilation valve. It is the schematic which shows the structure of a self-sealing drain trap. It is sectional drawing which shows the structure of a self-sealing drain trap. It is the schematic which shows the disposer which concerns on 3rd Embodiment of this invention. It is a figure which shows a mode that the bag body was in the bulging state in the disposer which concerns on 3rd Embodiment of this invention. It is the schematic which shows the disposer which concerns on 4th Embodiment of this invention. It is the schematic which shows the structure using the bellows-shaped member which has a bellows-like side wall as a formation member which forms an expansion / contraction chamber. It is the schematic which shows the state which the bellows-like member shown in FIG. 16 extended | stretched.

(First embodiment)
Hereinafter, the disposer and drainage system concerning a 1st embodiment of the present invention are explained based on a drawing.

-Siphon drainage system configuration-
First, the configuration of the siphon drainage system according to the first embodiment will be described. FIG. 1 is a schematic diagram showing the overall configuration of the siphon drainage system according to the first embodiment.

  The siphon drainage system 10 according to the first embodiment is a drainage system that efficiently drains drainage from a watering device using siphon force. In the first embodiment, an example in which the siphon drainage system is used in an apartment house composed of a plurality of floors will be described.

As shown in FIG. 1, the siphon drainage system 10 includes a drainage stack 12 that allows drainage to flow downward. The drainage stack 12 extends in the vertical direction (longitudinal direction) of the apartment house, and penetrates the floor slab 14 on each floor of the apartment house.
A watering device 16 for draining water is provided at each house on each floor of the apartment house. The watering device 16 is constituted by a kitchen sink, for example.

The watering device 16 is provided with a disposer 18 that extends downward from the watering device 16 and allows the drainage from the watering device 16 to flow downward.
The disposer 18 includes a disposer body 20, a drain trap 22, an air vent pipe 24, a drain introduction pipe 26, and a bag body 28.

  The disposer body 20 is fixed to the watering device 16 and pulverizes the input material such as garbage that has been input to the drain port 16A of the watering device 16 so that the pulverized material can flow down together with the drainage. . The disposer body 20 is connected to one end (upstream end) of a drain trap 22 for preventing backflow of foul odors and gases. The drain trap 22 is constituted by a so-called S trap.

A bag body 28 formed of a film body is provided inside the disposer body 20.
The bag body 28 is attached to the exhaust port 24 </ b> A so that the opening 28 </ b> A of the bag body 28 is aligned with the exhaust port 24 </ b> A of the air vent pipe 24, and the bag body 28 forms an expansion / contraction chamber 30. As the bag body 28, an elastic material made of an elastic material can be used. The material can be, for example, rubber, vinyl, elastomer other than rubber, or the like. The bag body 28 is in an expanded state when air flows into the internal expansion / contraction chamber 30 and is flattened when air flows out of the internal expansion / contraction chamber 30.
The expansion / contraction chamber 30 is a sealed space that can be expanded / contracted by air pressure, and the air in the drainage introduction pipe 26 pressed by the drainage from the watering device 16 can flow out.

The air vent pipe 24 communicates with the upper part of the drainage introduction pipe 26 and one end (upstream end), and the other end (downstream end) extends into the disposer body 20 and communicates with the expansion / contraction chamber 30. Here, the connection part 25 of the air vent pipe 24 and the drainage introduction pipe 26 is located above the siphon activation reference head. For this reason, the siphon force is activated quickly, and the waste water hardly flows into the expansion / contraction chamber 30 from the drain introduction pipe 26. In the figure, the siphon activation reference head is indicated by the sign His.
Here, the siphon activation reference water head His is the minimum water level necessary for generating the siphon force. This is based on the phenomenon that a certain amount of pressure is required as the pressure for pushing water into the siphon drain pipe 34, and no siphon force will be generated no matter how much time elapses unless the water level reaches this level. Is.

  Further, the air vent pipe 24 is formed in an L shape with a bent middle portion, and is connected to the drain introduction pipe 26 and extends upward from the drain introduction pipe 26, and from the longitudinal pipe 24B in the lateral direction. The horizontal tube 24C extends.

  The drainage introduction pipe 26 to which the vertical pipe 24B is connected has one end (upstream end) near the connection with the vertical pipe 24B connected to the downstream end of the drain trap 22 and the other end (downstream end). It is connected to the siphon drain pipe 34 and drains the pulverized material from the disposer body 20 to the siphon drain pipe 34.

The drainage introduction pipe 26 has a vertical pipe 26 </ b> A extending in the vertical direction (vertical direction) connected to the drain trap 22 and the air vent pipe 24.
The vertical pipe 26A is provided with a ventilation valve 32 that allows air from the outside to pass through the drainage introduction pipe 26 and prevents the drainage from passing through the drainage introduction pipe 26 to the outside.

The inflow resistance of air flowing from the expansion / contraction chamber 30 to the drainage introduction pipe 26 side is smaller than the inflow resistance of air flowing from the vent valve 32 to the drainage introduction pipe 26 side. That is, air is more likely to flow into the drainage introduction pipe 26 from the expansion / contraction chamber 30 than from the ventilation valve 32.
This ease of air flow can be adjusted by, for example, increasing the flexibility of the forming member that forms the expansion / contraction chamber 30 and making the expansion / contraction chamber 30 easily expand / contract. Further, by using an elastically deformable member such as rubber as a forming member and exerting a restoring force to reduce the enlarged expansion / contraction chamber 30, air further flows from the expansion / contraction chamber 30 into the drainage introduction pipe 26. It becomes easy.
In addition, the inflow resistance can be adjusted by the flow resistance in the path between the expansion / contraction chamber 30 and the drainage introduction pipe 26. For example, by increasing the flow path width of the path and reducing the flow path length, the flow resistance can be reduced, and air can easily flow into the drainage introduction pipe 26 from the expansion / contraction chamber 30.

Further, the drainage introduction pipe 26 has an R-shaped R pipe 26B whose upstream end is connected to the vertical pipe 26A and whose downstream end is connected to the siphon drainage pipe 34.
The siphon drain pipe 34 connected to the R pipe 26B is installed on the floor slab 14 without any gradient, communicates with the drain introduction pipe 26 and extends in the lateral direction, and communicates with the lateral pull pipe 36. And a soot pipe 38 extending downward along the drainage stack 12.
The soot pipe 38 is connected to a junction joint 40 disposed in the drainage stack 12 and communicates with the drainage stack 12 via the junction joint 40.

  The horizontal pulling pipe 36 and the dredging pipe 38 are constituted by a drainage pipe constituted by one path, and in the siphon drainage pipe 34, the drainage stand 12 is not joined to other drainage pipes on the way to the drainage standpipe 12. The drainage is guided to the pipe 12.

  The horizontal pulling pipe 36 causes the wastewater from the drainage introduction pipe 26 to flow in the lateral direction, and the dredge pipe 38 generates siphon force by causing the drainage from the horizontal pulling pipe 36 to flow down. The drainage in the horizontal pulling pipe 36 is pulled by a siphon force generated in the dredger pipe 38, thereby applying a siphoning force in the discharge direction.

  Further, if the horizontal pulling pipe 36 and the dredging pipe 38 are thinned, the drainage becomes full and siphon force is likely to be generated, while the wastewater treatment amount is reduced. Therefore, the inner diameters of the horizontal pulling pipe 36 and the dredging pipe 38 are set to 20 A, for example, in consideration of the ease of generation of siphon force and the required amount of wastewater treatment.

Next, the inside of the main body of the disposer 18 according to the first embodiment of the present invention will be described in more detail.
FIG. 2 is a partial cross-sectional perspective view of the disposer according to the first embodiment of the present invention.

  As described above, the disposer 18 according to the first embodiment includes the disposer main body 20, the drain trap 22, the air vent pipe 24, the drain introduction pipe 26, and the bag body 28, and the bag body 28. Is incorporated in the disposer body 20.

  The disposer body 20 is composed of, for example, a grinder type device, and is installed on the back side of the watering device 16 provided in the kitchen facility. The disposer main body 20 has a cylindrical shape and has a pulverizing section 50 into which garbage or the like is put. The upper end of the crushing part 50 is fitted and fixed to the charging opening (drainage port) 16A of the watering device 16 via the attaching means 52 (shown by a chain line). The attachment means 52 has a flange 52A. The flange 52A is attached and fixed to the watering device 16, and the crushing part 50 is fixed to the watering device 16 through the flange 52A. Thereby, the charging opening 16A of the watering device 16 and the charging opening 50A of the crushing part 50 are connected.

A crushing unit 54 is attached to the crushing unit 50.
The crushing unit 54 is composed of a plurality of crushing blades, and in this example, five crushing blades are stacked. That is, the crushing unit 54 is configured by stacking the first rotary crushing blade 54A, the first fixed crushing blade 54B, the second rotary crushing blade 54C, the second fixed crushing blade 54D, and the third rotary crushing blade 54E in this order. The

  The first rotary crushing blade 54A, the first fixed crushing blade 54B, the second rotary crushing blade 54C, the second fixed crushing blade 54D, and the third rotary crushing blade 54E are dimensioned so as to overlap with almost no vertical spacing. Thus, the crushed garbage is prevented from entering the gap above and below the crushing blade and remaining in the crushing unit 4.

  A rotation drive shaft 56 is integrally formed with a disk constituting the third rotary crushing blade 54E at the center of the third rotary crushing blade 54E at the lowest stage. The rotary drive shaft 56 is rotationally integrated with the first rotary crushing blade 54A and the second rotary crushing blade 54C, and is rotationally free with respect to the first fixed crushing blade 54B and the second fixed crushing blade 54E. The shape is such that

  A housing 58 surrounding the pulverizing unit 50 is a housing for fixing to the watering device 16, and an internal space 60 of the housing 58 communicates with the outside so that air can enter and exit.

The above-described bag body 28 is provided in the internal space 60 of the housing 58. The bag body 28 is connected to a horizontal tube 24 </ b> C of the air vent tube 24 that extends through the housing 58, passes through a gap between the crushing part 50 and the housing 58, and extends to the internal space 60.
Here, since the internal space 60 communicates with the outside, when the bag body 28 expands and contracts, the air in the internal space 60 flows out to the outside, or the air outside the air flows into the internal space 60, The fluctuation of the air pressure in the space 60 can be suppressed, and the bag body 28 can be reliably expanded and contracted.
Further, the housing 58 protects the bag body 28, and the bag body 28 can be prevented from being damaged by an external force. Furthermore, since the bag body 28 is provided in the housing 58 of the disposer body 20 having a stable balance, the balance of the siphon drainage system 10 as a whole can be kept stable. Furthermore, the size increase of the entire disposer 18 due to the installation of the expansion / contraction chamber 30 can be suppressed, and for example, the storage space under the kitchen can be widely used.

  In addition, although not shown in the figure, a drive motor and a speed reduction unit as drive means are installed in the internal space 60. The drive motor rotationally drives the rotary crushing blade of the crushing unit 54 via the speed reduction unit.

  A drain pipe connection port (drain port) 62 is provided at the lower peripheral surface of the pulverization unit 50, and the drain trap 22 is connected to the drain pipe connection port 62. The crushing part 50 is provided with a bottom plate 64 inclined toward the drain pipe connection port 62, and the center part of the bottom plate 64 serves as a bearing part for receiving a drive shaft of a reduction unit (not shown).

-Action of siphon drainage system-
Next, the operation of the siphon drainage system 10 including the disposer 18 according to the first embodiment of the present invention will be described.
According to the configuration of the siphon drainage system 10 according to the first embodiment, as shown in FIG. 1, the drainage from the watering device 16 flows downward in the drainage introduction pipe 26 in a full flow state. The drainage that has flowed downward in the drainage introduction pipe 26 further flows in the horizontal direction in the full direction in the horizontal pulling pipe 36.

Then, the drainage flows down the culvert pipe 38 in a full state, and siphon force is generated by the falling energy in the culvert pipe 38. The siphon force induces drainage in the drainage introduction pipe 26, the horizontal pulling pipe 36, and the dredging pipe 38, and the drainage is promoted.
For this reason, even if there is no downward gradient in the horizontal pipe 36, the drainage can be guided by siphon force even if there is a slight reverse gradient.

Here, in the siphon drainage system 10, when drainage is performed, since there is no gradient and the diameter is small, the drainage flowing through the vertical pipe 26A of the drainage introduction pipe 26 as shown in FIG. As shown in FIG. 3 (B), the R pipe 26B of the drainage introduction pipe 26 and the upstream end of the horizontal pulling pipe 36 begin to accumulate, and as shown in FIG. 3 (C), the R pipe 26B of the drainage introduction pipe 26 and In some cases, the upstream end of the horizontal pipe 36 is blocked.
In addition, in the configuration in which the disposer 18 is provided in the siphon drainage system 10 as in the first embodiment, the wastewater flows together with the pulverized material, so the pulverized material and the wastewater are discharged to the R pipe 26B in the drainage introduction pipe 26 and the like. Are likely to remain, and the air in the drainage introduction pipe 26 is unlikely to be discharged downstream.

  In this way, when drainage or the like has accumulated in the downstream end portion of the drainage introduction pipe 26 or the upstream end portion of the horizontal pulling pipe 36, as shown in FIG. The drainage introduction pipe 26 becomes positive pressure, and the air in the drainage introduction pipe 26 pressed by the drainage from the watering device 16 starts to flow into the expansion / contraction chamber 30 via the air vent pipe 24.

The air in the drainage introduction pipe 26 flows into the expansion / contraction chamber 30, and the bag body 28 is expanded as shown in FIG. 5, and the air in the drainage introduction pipe 26 passes through the expansion / contraction chamber 30.
As a result, the drainage from the watering device 16 flows almost freely through the drainage introduction pipe 26, so that the wastewater flows smoothly through the drainage introduction pipe 26, and the stagnation of the wastewater near the drain outlet 16 </ b> A of the watering equipment 16 is suppressed. it can.

  Further, as shown in FIG. 3, the upstream end of the R pipe 26 </ b> B of the drainage introduction pipe 26 and the horizontal pulling pipe 36 is blocked with drainage, so that the drainage trap 22 of the watering device 16, that is, drainage. According to the configuration of the first embodiment in which the expansion / contraction chamber 30 communicates with the drainage introduction pipe 26 because air is confined in the introduction pipe 26, at the intermediate portion of the horizontal pulling pipe 36 or the downstream end of the horizontal pulling pipe 36 Compared with the configuration in which the expansion / contraction chamber 30 is communicated, it becomes possible to efficiently extract air that serves as drainage resistance.

In addition, since the drainage from the watering device 16 flows through the drainage introduction pipe 26 at a substantially free fall speed, the drainage flows into the horizontal pulling pipe 36, so that the drainage reaches the dredging pipe 38 quickly and the siphon is activated. Becomes faster.
Moreover, in the structure of 1st Embodiment, even if air flows in into the expansion / contraction chamber 30, since the expansion / contraction chamber 30 is the sealed space, a foul odor etc. do not leak outside.

In the configuration of the first embodiment, since the expansion / contraction chamber 30 communicates with the drainage introduction pipe 26 above the siphon activation reference head, wastewater does not easily flow into the expansion / contraction chamber 30 from the drainage introduction pipe 26.
Further, according to the configuration of the first embodiment, the air vent pipe 24 has the other end extended upward communicating with the expansion / contraction chamber 30, so that the wastewater flows into the expansion / contraction chamber 30 from the drainage introduction pipe 26. Hateful.

  In addition, as shown in FIG. 6, in the case of flushing, when the wastewater that has flowed through the drainage introduction pipe 26 flows through the horizontal pulling pipe 36 and down the dredge pipe 38 and siphon force acts, As shown in FIG. 7, the air is pulled downstream along with the drainage, and the air that has escaped into the expansion / contraction chamber 30 flows into the drainage introduction pipe 26, and the bag body 28 becomes flat.

Furthermore, as shown in FIG. 8, when the air in the drainage introduction pipe 26 is pulled downstream after the air in the expansion / contraction chamber 30 is exhausted, the air flows from the vent valve 32. In the example shown in FIG. 8, specifically, in the drainage introduction pipe 26, the downstream pipe portion 26 </ b> Y on the downstream side of the vent valve 32 remains negative and the upstream pipe portion 26 </ b> X on the upstream side of the vent valve 32. However, there is no pressure or a slight negative pressure (smaller than the negative pressure in the downstream pipe portion 26Y).
As a result, problems caused by the negative pressure in the drainage introduction pipe 26 (in the upstream pipe portion 26X in the example shown in FIG. 8), for example, inhaling air with the water-sealed drain trap of the watering device 16 Can eliminate noise and drainage trap breakage.

  FIG. 9 shows the pressure fluctuation in the drainage introduction pipe 26 when the flushing device 16 is washed away, the state change of the bag body 28 and the ventilation state of the vent valve 32 due to the pressure fluctuation. An arrow A in FIG. 9 indicates that the bag body 28 is in an expanded state, an arrow B indicates that the bag body 28 is in a flat state, and an arrow C indicates that the vent valve 32 is in a vented state. Indicates.

  When flushing is performed in the watering device 16, the inside of the drainage introduction pipe 26 becomes positive pressure in the time until the siphon force is activated, and after the siphon force is activated, the siphon force is removed irregularly. For a moment, the inside of the drainage introduction pipe 26 becomes positive pressure. When the inside of the drainage introduction pipe 26 becomes a positive pressure, the bag body 28 is expanded. Since the time during which the inside of the drainage introduction pipe 26 is positive is limited, it is possible to cope with a case where the capacity of the expansion / contraction chamber 30 is limited, such as the bag 28.

On the other hand, while the siphon force is activated and the siphon force is acting, the inside of the drainage introduction pipe 26 becomes negative pressure. When the pressure inside the drainage introduction pipe 26 becomes negative, the bag body 28 is in a flat state.
The time during which the inside of the drainage introduction pipe 26 is negative is longer than the time during which the inside of the drainage introduction pipe 26 is positive, so that not only the capacity of the expansion / contraction chamber 30 is limited as in the bag body 28, As in the first embodiment, it is desirable that a vent valve 32 capable of flowing air into the drainage introduction pipe 26 is provided.

Further, since the positive pressure and the negative pressure in the drainage introduction pipe 26 are repeated, the air vented into the expansion / contraction chamber 30 first flows into the drainage introduction pipe 26 as in the first embodiment, and then the ventilation valve It is preferable that the air in the expansion chamber 30 is contracted and returned to the original state when the positive pressure is obtained by the air flowing in from 32. Specifically, it is desirable that the inflow resistance of air flowing from the expansion / contraction chamber 30 to the drainage introduction pipe 26 side is smaller than the inflow resistance of air flowing from the vent valve 32 to the drainage introduction pipe 26 side. If the inflow resistance of the air flowing from the expansion / contraction chamber 30 to the drainage introduction pipe 26 side is higher than the inflow resistance of the air flowing from the vent valve 32 to the drainage introduction pipe 26 side, the ventilation valve 32 continuously ventilates. As a result, the bag body 28 continues to expand and eventually expands to the maximum extent, and air no longer escapes into the expansion / contraction chamber 30 and does not function.
If the interior of the expansion / contraction chamber 30 is reduced and returned to its original state, even if the pressure is negative and then positive again, the air in the drainage introduction pipe 26 pressed by the drainage is expanded and contracted. It is possible to effectively prevent the stagnation of drainage in the vicinity of the drainage port 16A of the watering device 16.

(Second Embodiment)
Next, a disposer and a siphon drainage system according to a second embodiment of the present invention will be described with reference to FIGS.
FIG. 10 is a schematic view showing a disposer and siphon drainage system according to the second embodiment of the present invention. FIG. 11 is a schematic view showing a configuration of a self-sealing drain trap. FIG. 12 is a cross-sectional view showing a configuration of a self-sealing drain trap.

The siphon drainage system 68 according to the second embodiment has a disposer 70 that is different from the disposer 18 of the first embodiment in the configuration of drain traps and vent valves, and the connection position of the disposer body and the drainage introduction pipe. ing.
That is, the disposer 70 is configured to use a self-sealing drain trap as the vent valve 72, and the disposer body 74 and the drain introduction pipe 76 are connected in the vertical direction.
In the configuration shown in FIG. 10, the watering device 16 is provided with a membrane valve 72 as an example of a self-sealing drain trap used as the vent valve 72. The membrane valve 72 is formed in a cylindrical shape with an elastic material, the upstream side is always open, the downstream side can be opened and closed, and is closed in a free state.

Further, the membrane valve 72 is attached in the vertical direction along the drainage introduction pipe 76, and the upstream end portion 72A is disposed on the upper side and the downstream end portion 72B is disposed on the lower side.
The membrane valve 72 is a cylindrical molded product made of an elastic body such as rubber. In the free state, the upstream end 72A side is shown in FIGS. 10 (A), 11 (A), and 12 (A). As shown in FIG. 12, it is formed into a shape that is gradually crushed toward the downstream end portion 72B, and the cross section is elliptical in the middle portion, as shown in FIG. In the end portion 72B, as shown in FIG. 11B, the inner peripheral surfaces that are linear when viewed in the axial direction are in contact with each other and the opening is closed.

The downstream end 72B is closed so that the opening can be opened and closed, and when the drainage does not flow into the membrane valve 72 and the drainage introduction pipe 76 is not under negative pressure, the opening is maintained in a closed state. To be brazed.
Further, the downstream end portion 72B is shown in FIGS. 10B, 11C, and 12B when drainage flows into the membrane valve 72 and when the drainage introduction pipe 26 has a negative pressure. As shown, it opens at that pressure.

  As described above, according to the configuration of the disposer 70 and the drainage system 68 according to the second embodiment of the present invention, the ventilation valve and the drainage trap can be used together, so the number of parts can be reduced.

(Third embodiment)
Next, a disposer and a siphon drainage system according to a third embodiment of the present invention will be described with reference to FIGS.
FIG. 13 is a schematic view showing a disposer according to the third embodiment of the present invention.
FIG. 14 is a diagram illustrating a state in which the bag body is in an expanded state in the disposer according to the third embodiment of the present invention.

  The siphon drainage system according to the third embodiment of the present invention has a disposer 80 in which the configuration of the disposer body and the position of the bag body are different from those of the disposer 18 of the first embodiment.

Specifically, the disposer 80 has a disposer body 82 that is fixed to the watering device 16 and extends downward from the watering device 16.
The disposer main body 82 has an input opening 80 </ b> A connected to the drain 16 </ b> A of the watering device 16. The crushing portion 84 communicating with the charging opening 80A is provided with a crushing mechanism 86. A motor 88 and a drainage passage 90 for driving the crushing mechanism 86 are provided below the crushing portion 84, and a drain trap is provided below the drainage passage 90. 92 is provided. The motor 88 is provided with a drive shaft 94 protruding upward, and the drive shaft 94 drives the crushing mechanism 86. The drainage trap 92 includes a rising pipe 92A and a bowl-like body 92C that covers the upper part of a drainage introduction pipe (not shown) and whose lower end enters the sealed water 92B.

  Below the drain trap 92, a pipe connection portion 96 connected to a drain introduction pipe shown in the figure is provided. The pipe connection portion 96 is provided with an air vent opening portion 96C through which air passes, in addition to the upstream opening portion 96A and the downstream opening portion 96B through which drainage or the like flows.

  Disposer 80 also has a bag 98 that communicates with air vent opening 96C. The bag body 98 is attached to the housing 96 so as to surround the lower periphery of the housing 96 of the disposer body 82. The bag body 98 is formed of a film body, but a part thereof is formed of a housing 96.

  An expansion / contraction chamber 100 is formed inside the bag body 98. The expansion / contraction chamber 100 is constituted by an inner wall of the bag body 98, is a sealed space in which the interior can be expanded / contracted by air pressure, and air in a drainage introduction pipe (not shown) pressed by drainage from the watering device 16 can flow out. ing. Therefore, the bag body 98 is in an expanded state when air flows into the internal expansion / contraction chamber 100 (see FIG. 14), and is flattened when air flows out of the internal expansion / contraction chamber 100. It becomes a flat state (refer FIG. 13).

As described above, according to the configuration of the disposer 80 according to the third embodiment of the present invention, since the bag body 98 is attached to the housing 96 so as to surround the housing 96 of the disposer main body 82, the bag body 98 is disposed in the housing 96. Even when there is no space to provide, the bag body 98 can be integrated with the housing 96.
Furthermore, since the housing 96 constitutes a part of the bag body 98, the material cost for forming the film body of the bag body 98 can be reduced.
Furthermore, since the bag body 98 communicates directly with the air vent opening portion 96C of the pipe connection portion 96, the air vent tube 24 is not required as compared with the configuration of the first embodiment, and the number of parts is reduced while reducing the number of parts. It is possible to suppress stagnation of drainage generated in the vicinity of the drain port 16A of the instrument 16.

(Fourth embodiment)
Next, a disposer and a siphon drainage system according to a fourth embodiment of the present invention will be described with reference to FIG.
FIG. 15 is a schematic view showing a disposer according to the fourth embodiment of the present invention.

  The siphon drainage system according to the fourth embodiment of the present invention has a disposer 112 in which the configuration of the bag body is changed and a ventilation valve is added in the configuration of the disposer 80 of the third embodiment.

Specifically, the disposer 112 has a bag body 112 built in the housing 96 of the disposer body 82. Since the bag body 112 is built in a position different from the drainage passage 90, the bag body 112 is not damaged by drainage or pulverized material.
An expansion / contraction chamber 114 is formed inside the bag body 112. The expansion / contraction chamber 114 is configured by an inner wall of the bag body 112 and is a sealed space in which the interior of the chamber can be expanded / contracted by air pressure. The air vent pipe 116 of the bag body 112 is connected, and the air vent pipe 116 is connected to the air vent opening 96 </ b> C of the pipe connecting portion 96 in the disposer body 82. Thereby, air in a drainage introduction pipe (not shown) pressed by drainage from the watering device 16 can flow into the expansion / contraction chamber 114.
The air vent pipe 116 is attached to the housing 96, and a part of the air vent pipe 116 is constituted by a part of the housing 96. A vent valve 118 is provided at an intermediate portion of the air vent pipe 116, and the vent valve 118 has a configuration in which air from the outside passes through a drainage introduction pipe (not shown) and drainage does not pass from the drainage introduction pipe to the outside. is there.

  As mentioned above, according to the structure of the disposer 112 which concerns on 4th Embodiment of this invention, since the air vent pipe 116 is attached to the housing 96, the balance of the air vent pipe 116 is stabilized. Further, since a part of the air vent pipe 116 is constituted by a part of the housing 96, the material cost for forming the air vent pipe 116 can be reduced.

(Modification)
The present invention is not limited to the above-described embodiment, and various modifications, changes, and improvements can be made.

  For example, although the siphon drainage system mentioned above demonstrated the case where it used for an apartment house, it can be used also for detached houses, factories, etc. other than an apartment house.

Moreover, although the case where the watering implement 16 was comprised with the kitchen sink was demonstrated, you may be comprised with either a wash basin, a washing machine, a unit bath, a toilet, etc.
Furthermore, in the first embodiment, the S trap is used as the drain trap 22, but other traps such as a dredging trap 92 and a P trap (not shown) as in the third embodiment may be used. Similarly, other traps can be used in the second to fourth embodiments.

Furthermore, the horizontal pulling tube 36 may have a slight gradient or a reverse gradient, and may be configured to be inclined and disposed in the horizontal direction.
Further, the vertical pipe 24B of the air vent pipe 24 does not need to extend in the vertical direction, and may be slightly inclined. The shape of the air vent tube 24 has been described in the case where the intermediate portion is bent and formed in an L shape. However, the shape is not particularly limited, and may be, for example, a straight shape.

  Furthermore, a part of the bag bodies 28 and 120 may be configured by the inner wall of the housing 58 as in the third embodiment.

  Furthermore, the forming member for forming the expansion / contraction chamber 30 is not limited to the bag body 28, and various members can be used. As a formation member, you may comprise with the cylinder in which the piston was provided so that reciprocation was possible, for example. In this configuration, the expansion / contraction chamber formed inside the cylinder expands / contracts when the piston reciprocates.

  Moreover, as a formation member, as shown in FIG. 16, the cylindrical bellows-shaped member 120 which has the side wall 120A made into the bellows shape may be sufficient. The bellows-like member 120 has one end closed and the other end open, and the open end communicates with the air vent tube 24. The bellows-like member 120 is configured such that a bellows-like side wall 120A can be expanded and contracted, and the side wall 120A expands as shown in FIG. 17 to expand the expansion / contraction chamber 122, and the side wall 120A contracts as shown in FIG. As a result, the expansion / contraction chamber 122 is reduced.

  Furthermore, the upstream end of the air vent pipe 24 may be connected to the lower part of the drainage introduction pipe 26. Furthermore, the upstream end of the air vent pipe 24 may be connected to the R pipe 26B of the drainage introduction pipe 26, or may be connected to the drainage introduction pipe 26 below the siphon activation reference water head His.

  The vent valves 32 and 118 of the first and fourth embodiments are constituted by various mechanical elements such as those using an elastic body such as the membrane valve of the second embodiment and a ball type check valve. It is also possible to use a non-return valve. The vent valve 32 may be arranged not in the drainage introduction pipe 26 but in the air vent pipe 24 as in the fourth embodiment. Further, the siphon drainage system 10 may be configured without the ventilation valve 32.

  Furthermore, the vent valves 32 and 118 may be provided in the housings 58 and 96 of the disposer main bodies 20 and 82. According to this configuration, an increase in the size of the entire disposer due to the installation of the vent valve can be suppressed, and for example, the storage space under the kitchen can be widely used.

  Further, the configuration of the disposer shown in FIG. 2 described in the first embodiment is an example other than the configuration according to the present invention, and the present invention can be applied to various other disposers.

10, 68 Siphon drainage system 16 Watering device 16A Drain port 18, 70, 80, 112 Disposer 20, 74, 82 Disposer body 22, 92 Drain trap 24, 116 Air vent pipe 24A Exhaust port 26, 76 Drain inlet pipe 25 Connection part 28, 98, 112 Bag 30, 30, 114, 122 Expansion / contraction chambers 32, 72, 118 Vent valve 36 Horizontally drawn pipe 38 Saddle pipe 50, 84 Grinding part 58, 96 Housing 72 Membrane valve (an example of a self-sealing drain trap) )
120 bellows-like member (an example of a bag)
His siphon activation reference head

Claims (11)

A disposer body that crushes the input material introduced from the watering device and flows down to the drainage introduction pipe where the siphon force acts,
An expansion / contraction chamber provided in a housing of the disposer body, communicating with the drainage introduction pipe, and expanding / contracting by air pressure;
Disposer with   The disposer according to claim 1, wherein the expansion / contraction chamber is formed of a bag attached to an exhaust port of an air vent pipe connected to the drainage introduction pipe.   The disposer main body is connected to a drain outlet of the watering device, and includes a pulverizing portion for pulverizing an input charged into the drain outlet, and the bag body is provided in a housing surrounding the pulverizing portion. Item 3. Disposer according to Item 2.   The disposer according to claim 2, wherein the bag body is attached to the housing so as to surround the housing of the disposer body.   The disposer according to any one of claims 2 to 4, wherein the housing constitutes a part of the bag.   The disposer according to any one of claims 2 to 5, wherein a connection portion between the drainage introduction pipe and the air vent pipe is located above the siphon activation reference head.   The disposer according to any one of claims 1 to 6, further comprising a ventilation valve that allows air from outside to pass through the drainage introduction pipe and does not allow drainage to pass from the drainage introduction pipe to the outside.   The disposer according to claim 7, wherein an inflow resistance of air flowing from the expansion / contraction chamber to the drainage introduction pipe side is smaller than an inflow resistance of air flowing from the vent valve to the drainage introduction pipe side.   The disposer according to claim 7 or 8, wherein the vent valve is a self-sealing drain trap that is always open on the upstream side, can be opened and closed on the downstream side, and is closed in a free state.   The disposer according to any one of claims 7 to 9, wherein the ventilation valve is provided in a housing of the disposer body. A disposer that pulverizes the input from a watering device and allows the pulverized material to flow down along with the drainage;
A drainage introduction pipe that communicates with the disposer and allows the drainage from the disposer to flow downward;
An expansion / contraction chamber provided in the housing of the disposer, communicating with the drainage introduction pipe, and expanding / contracting by air pressure;
A horizontal pulling pipe that communicates with the drainage introduction pipe and extends in the lateral direction, and allows the drainage from the drainage introduction pipe to flow laterally;
A vertical pipe that communicates with the horizontal pipe and extends downward, and generates siphon force by flowing down drainage from the horizontal pipe;
Siphon drainage system with.

Images