JP2005180064A - Urinal cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a urinal cleaning device capable of preventing or restraining urinary calculus to the part from sticking and depositing, by effectively cleaning the tip part of a drain flange and a drain pipe on the further downstream side of a drain passage on the downstream side of a water storage part of a drain trap in an urinal. <P>SOLUTION: This urinal cleaning device is constituted so as to clean the drain passage 36, by directly supplying washing water from an injection nozzle 40 without passing through the water reservoir 15 of a bowl surface 12 and the drain trap 14 of the urinal 10 to the drain passage 36, by connecting a supply pipe 42 to this injection nozzle 40, by arranging the injection nozzle 40 of the wash water in the drain passage 36 on the innermost side of the downstream side of the water reservoir 15 of the drain trap 14 of the urinal 10, in a part on the upstream side of the tip of the drain pipe 18 for supplying waste water from the urinal 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a urinal washing device, and more particularly to a urinal washing device for washing a drainage channel downstream from a drainage trap.

Usually, a urinal is equipped with a bowl surface cleaning device that supplies cleaning water to the bowl surface to wash the bowl surface, and the washing water is automatically applied to the bowl surface every time it is used or by a user operating a push button or the like. To wash the bowl surface.
Here, the wash water that has washed the bowl surface flows through the water storage part of the urinal drain trap (hereinafter simply referred to as the drain trap) and the back drainage channel downstream from this, and then flows into the drainage pipe to the outside. To be discharged.

  In this way, each time a urinal is used, the bowl surface is washed and the bowl surface washing water flows through the bowl surface, drain trap, and drainage channel, but conventionally the tip of the drain trap, drainage channel, drain pipe, There was a problem that urine stones were likely to adhere to and accumulate on the tip of the connection side with the urinal.

  Of these, urinary stone adhering to the drain trap can be removed to some extent by normal cleaning, but urinary stone adhering to and depositing on the drainage channel at the back and the tip of the drainage pipe downstream from the drain trap. Since this portion is a portion that is not a target for normal cleaning, the attached urine stone gradually grows to increase the amount of deposition, and eventually the drainage channel and drainage piping may be blocked.

Fig. 2 and Fig. 3 show the urine stone adhesion / deposition status when the urine stone adhesion promotion test was conducted (when the urinal bowl was washed with wash water containing no chlorine). is there.
In the figure, 200 is a urinal, 202 is a bowl surface, 205 is a water storage part of the drain trap 204, 206 is a drain pipe for draining the waste water from the urinal 200 and discharging it to the outside, and 208 is an elbow in the drain pipe 206. The part 210 is a horizontal part in the elbow part 208.
212 is a drainage channel downstream from the drainage trap 204 (strictly, the water storage part 205 of the drainage trap 204), and 214 is a discharge port at the end of the drainage channel 212, that is, the urinal 200 and the drainage pipe 206. It is a drainage flange for connection.

P represents urine stone. If the urinal 200 is continuously used as shown in the figure, the urine stone P adheres to the drainage passage 212, the drainage flange 214, and the horizontal portion 210 of the drainage pipe 206, and this gradually grows. Go. If the urinal 200 is continuously used while being left unattended, the urine stone P becomes a large lump, and eventually the drainage channel 212, the drainage flange 214, or the drainage pipe 206 is blocked.
FIG. 3B shows a state before the urine stone P adheres and accumulates.

The generation and growth of urine stone P is considered to occur as follows.
In other words, urea in the urine is decomposed into ammonia by the action of bacteria, and as a result, the wastewater becomes alkaline, so that the solubility of the calcium component contained in the urine is reduced and deposited and deposited on the drainage route. It has been.

The adhering / depositing portion of the urinary stone P is a portion that cannot be normally cleaned as described above, and in order to remove the urinary stone P, the urinal 200 is once removed, and then the urinary stone P is dissolved with a medicine. It is necessary to carry out the removal treatment by dissolving them by high pressure washing or by high pressure washing.
However, this removal processing is a large processing operation and cannot be easily performed.

For this reason, various means for preventing adhesion / deposition of urine stone have been studied and proposed.
For example, Patent Document 1 below describes that sterilizing water is directly supplied to a connection portion between a urinal and a drainage pipe, and the inside of the drainage pipe is washed with the sterilizing water.

  Further, in Patent Document 2 below, the pH of drainage in the drainage pipe is measured with a sensor, and when the drainage becomes alkaline, the water supply valve is automatically opened to supply cleaning water into the drainage pipe for cleaning. The point is disclosed.

However, in these cases, there is a problem that the drainage channel 212 shown in FIG. 2 cannot be washed, and urine stones adhered and deposited on the same portion cannot be removed.
In addition, when the sterilizing water is directly supplied to the drain pipe 206 for cleaning, a dedicated pipe must be installed, and the installation of the urinal 200 becomes a construction involving the pipe and the construction becomes complicated. Cause problems.

On the other hand, the following Patent Document 3 discloses that a bactericidal agent is preliminarily contained in the washing water of the bowl surface, and the adhesion of urinary stones to the urinal is suppressed by the bactericidal agent when the bowl surface washing is performed. ing.
Furthermore, the following Patent Document 4 discloses that cleaning water containing a bactericidal agent is supplied to a drain trap of a urinal and the portion is cleaned.

  However, as described in Patent Document 3 and Patent Document 4, when sterilizing agent is contained in the cleaning water for cleaning the pot surface or the cleaning water for the drain trap, the adhesion / deposition of urine stone is prevented. Before the cleaning water containing these sterilizing agents reaches the drainage channel 212 and the drainage flange 214 shown in FIG. 2, the sterilization ability is reduced by the upstream sterilization, and the drainage channel 212 and the drainage flange 214 are effective. Therefore, there remains a problem that urine stone cannot be sufficiently sterilized and therefore cannot be sufficiently prevented from adhering or depositing on the same portion.

JP-A-9-221807 JP 2001-132073 A JP 10-338958 A Japanese Patent No. 3191798

  The present invention is based on the above circumstances, and can effectively wash the drainage channel downstream of the drainage trap in the urinal, and further the drainage flange and drainage pipe downstream of the drainage trap. The object of the present invention is to provide a urinal cleaning device capable of preventing or suppressing the adhesion and accumulation of water.

  Thus, the first aspect of the present invention is a portion upstream of the urinal side tip of the drainage pipe through which the drainage from the urinal flows, and downstream from the water reservoir of the drainage trap of the urinal The drainage channel is provided with a wash water supply port, and the wash water supply pipe is connected to the feed port, and the drainage channel is not passed through the bowl surface of the urinal and the water storage part of the drain trap. The cleaning water is supplied directly from the supply port, and the drainage channel is cleaned.

  According to a second aspect of the present invention, in the first aspect, the cleaning water contains a bactericidal agent.

  A third aspect of the present invention is characterized in that in the second aspect, ozone is contained as the sterilizing agent.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the supply port is configured as an injection nozzle for injecting the cleaning water.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the supply pipe branches from a bowl surface cleaning device that supplies the bowl surface with cleaning water for cleaning the bowl surface to wash the bowl surface. And a bypass pipe that bypasses the bowl surface and the water storage part of the drain trap and connects to the supply port.

  A sixth aspect of the present invention is the suction device according to the second aspect, wherein a water supply valve is provided on the supply pipe, and the sterilizing agent is sucked from the sterilizing agent supply source by the water flow in the supply pipe and is contained in the cleaning water. And is provided.

Effects and effects of the invention

  As described above, the present invention provides a cleaning water supply port in the drainage channel downstream of the water storage part of the drain trap in the urinal (hereinafter simply referred to as a drain trap) and connects the supply pipe therewith. The flush water is supplied to the drainage channel from the supply port without passing through the bowl surface of the urinal and the drain trap, and the drainage channel is washed directly. According to the present invention, the drain trap It is possible to satisfactorily prevent urinary stones from adhering to the drainage channel, drainage flange, or drainage pipe tip and the growth of the drainage pipe, and the urinary stones become large lumps so that the drainage path is blocked. Can be solved.

In the present invention, the washing water can contain a bactericidal agent (claim 2).
As described above, urine stones are generated and grown by the action of bacteria.
Therefore, by containing a bactericide in the washing water, it is possible to satisfactorily prevent the generation and growth of urine stones due to the action of bacteria.

In this case, ozone can be contained in the cleaning water as the disinfectant (claim 3).
In this way, it is possible to satisfactorily prevent the adhesion and generation of urinary stones by bacteria based on the bactericidal action of ozone, and further the growth thereof.

When such ozone is contained as a disinfectant, the following advantages are also obtained.
That is, when ozone is contained in the wash water for washing the bowl surface and the bowl surface and the drain trap and drainage channel on the downstream side are sterilized, the ozone that cannot be dissolved in the wash water escapes from the wash water and the toilet. Since an unpleasant ozone odor is generated in the space, a large amount of ozone cannot be contained in the cleaning water. In this case, the sterilization ability is inevitably lowered, and the sterilization cannot be performed satisfactorily.

  On the other hand, in the present invention, the cleaning water containing ozone as a disinfectant is supplied to the drainage trap, that is, the drainage channel downstream from the portion where the backflow of odor or the like is prevented by the sealing water. The ozone that has escaped from the toilet is not released into the toilet space, and therefore the ozone concentration can be increased, that is, a large amount of ozone can be contained in the wash water, thereby increasing the sterilizing ability, and the drainage channel, Furthermore, it becomes possible to sterilize the downstream side with high efficiency.

In this invention, the said supply port can be comprised as an injection nozzle which injects washing water (Claim 4).
If it does in this way, it will become possible to perform washing more efficiently by jetting washing water into a drainage channel vigorously.
Here, the spray nozzle can be configured to spray the cleaning water in a straight shape or a shower shape or as another form of spray flow.

  Next, the fifth aspect of the present invention is configured such that the supply pipe branches off from the bowl surface cleaning device and extends, and is configured as a bypass pipe that bypasses the bowl surface and the drain trap and reaches the supply port. It becomes possible to construct the urinal washing apparatus of the present invention that supplies washing water to the drainage channel simultaneously with the installation and construction of the urinal.

In this case, a water supply valve may be provided on the supply pipe, and a suction device for sucking the sterilizing agent from the sterilizing agent supply source and containing it in the cleaning water may be provided.
In addition, ozone is used as a sterilizing agent, and the ozone generator that generates ozone is activated simultaneously with opening the water supply valve. The generated ozone is removed from the ozone generator by a suction device using the flow of water in the supply pipe. It can be aspirated and contained in the wash water.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, 10 is a urinal, 12 is a bowl surface, and 15 is a water storage part of a drain trap 14 provided at the bottom 16 of the bowl surface 12.
18 is a drainage pipe for draining the wastewater from the urinal 10 and discharging it to the outside, 20 is a horizontal pipe in the drainage pipe 18, 22 is an elbow part for connection, and 24 is a horizontal part in the elbow part 22.

A bowl surface cleaning device 26 for cleaning the bowl surface 12 by supplying cleaning water for washing the bowl surface 12 to the bowl surface 12 is disposed on the upper part of the urinal 10.
This bowl surface cleaning device 26 includes a sensor 28 for detecting a human body, a water supply valve 30 comprising an electromagnetic valve for supplying / blocking cleaning water for cleaning the bowl surface 12, and a water supply valve based on whether or not the human body is detected by the sensor 28. 30 includes a controller 32 that controls the operation of 30, and a spreader 34 that injects cleaning water toward the bowl surface 12.

  On the other hand, in the lower part of the urinal 10, a drainage channel 36 is formed on the back side downstream of the drainage trap 14 (strictly, the water storage part 15 of the drainage trap 14, hereinafter the same), and the end of the drainage channel 36 is formed. Is connected to the elbow portion 22 for connection in the drainage pipe 18 through the drainage flange 38.

  In the present embodiment, an upper part of the drainage channel 36 is provided with an injection nozzle (supply port) 40 for injecting (supplying) cleaning water for cleaning the drainage channel 36, and there is provided a cleaning water supply pipe 42. The ends are connected.

The supply pipe 42 branches out from the bowl surface cleaning device 26 and extends directly, and is directly connected to the injection nozzle 40 by bypassing the bowl surface 12 and the drain trap 14 in the urinal 10.
A water supply valve 44 is provided on the supply pipe 42 to supply and shut off the cleaning water for cleaning the drain passage 36 to the injection nozzle 40.
Further, an aspirator (suction machine) 48 that sucks ozone as a sterilizing agent generated in the ozone generator 46 by the water flow in the supply pipe 42 and contains it in the cleaning water in the supply pipe 42 is provided on the downstream side. Yes.

In the present embodiment, the operation of the ozone generator 46 and the water supply valve 44 is controlled by the controller 32, respectively.
That is, the controller 32 serves as the controller in the bowl surface cleaning device 26 and the controller in the urinal cleaning device of the present embodiment for cleaning the drainage channel 36.

In the present embodiment, the supply pipe 42 is constituted by a flexible hose.
The spray nozzle 40 is a spray nozzle that sprays cleaning water in a straight or shower shape, or a spray nozzle such as the spreader 34 that sprays cleaning water for cleaning the bowl surface 12 toward the bowl surface 12 or cleaning water. In addition, it can be configured as various types of spray nozzles that spray in various patterns.

In the present embodiment, when the user of the urinal 10 leaves the front of the urinal 10 after adding, the sensor 28 detects this and the controller 32 opens the water supply valve 30.
As a result, cleaning water is supplied to the spreader 34, and the cleaning water is jetted from the spreader 34 onto the bowl surface 12, thereby cleaning the bowl surface 12.
The washing water flows into the drainage channel 36 through the drain trap 14, then flows into the drain pipe 18 through the drain flange 38 and is discharged to the outside.

The bowl surface 12 is washed by the bowl surface washing device 26 in the daytime when there are many users of the urinal 10.
On the other hand, the urinal washing apparatus of the present embodiment for washing the drainage channel 36 performs a washing operation at a timing usually different from that of the bowl surface washing apparatus 26, specifically, at night when bacteria are likely to propagate.
That is, when a cleaning command is issued from the controller 32, the ozone generator 46 starts to operate and the water supply valve 44 is opened, and the cleaning water is sent to the injection nozzle 40 through the supply pipe 42 and from there to the drain 36. It is injected vigorously.

At this time, ozone generated by the ozone generator 46 is sucked into the supply pipe 42 by the water flow in the supply pipe 42 and is contained in the cleaning water in the supply pipe 42.
That is, cleaning water containing ozone as a sterilizing agent is jetted vigorously from the injection nozzle 40 into the drainage channel 36, and the drainage channel 36 is cleaned with the ozone-containing cleaning water.

The washing water sprayed into the drainage channel 36 immediately flows into the drainage pipe 18 through the drainage flange 38 on the downstream side and is discharged to the outside.
In the course of the flow, the inner surface of the drainage flange 38 and the inner surface of the drainage pipe 18 are cleaned with the cleaning water.

According to the urinal washing apparatus of the present embodiment as described above, adhesion / deposition of urine stones in the drainage channel 36 is effectively prevented, and when urine stones adhere, they grow and accumulate. This can be cleaned and removed well in the previous initial stage.
As a result, adhesion of urine to the drainage channel 36, the drainage flange 38 or the horizontal portion 24 (tip portion) of the drainage pipe 18 and its growth / deposition can be well prevented. The problem that the route is blocked can be solved.

  Further, as described above, urine stones are generated and grown by the action of bacteria, but in this embodiment, ozone as a bactericidal agent is contained in the washing water, so that bacteria are used based on the bactericidal action of the ozone. It is possible to satisfactorily prevent the adhesion / generation of urine stone and the growth thereof.

  In the present embodiment, cleaning water containing ozone as a sterilizing agent is supplied to the drainage trap 14, that is, the drainage channel 36 on the downstream side of the portion where the backflow of odor or the like is prevented by the sealing water. Therefore, ozone that cannot be dissolved in the wash water as in the case where ozone is contained in the wash water for washing the pot surface 12 is not released into the toilet space and an unpleasant ozone odor is generated in the toilet space. For this reason, the ozone concentration can be increased, that is, a large amount of ozone can be contained in the washing water, so that the sterilization ability can be increased, and the drainage channel 36 and further downstream sterilization can be performed efficiently. it can.

  Further, in the present embodiment, since the supply port is configured by the injection nozzle 40, the cleaning water can be vigorously injected into the drainage channel 36 to perform cleaning more efficiently.

  Further, in this embodiment, the supply pipe 42 is branched and extended from the bowl surface cleaning device 26, and is configured as a bypass pipe that bypasses the bowl surface 12 and the drain trap 14 and reaches the injection nozzle 40. A cleaning device for the drainage channel 36 can be constructed at the same time as the ten installations.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various forms without departing from the spirit of the present invention.

It is a figure showing a urinal washing device of one embodiment of the present invention with a urinal. It is a figure which shows the adhesion and accumulation state of urine stone when the adhesion promotion test of urine stone was conducted. FIG. 3 is a diagram illustrating an actual photograph of the urine stone adhesion / deposition state shown in FIG. 2 in comparison with a state where no urine stone is adhered.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Urinal 12 Bowl surface 14 Drain trap 15 Water storage part 18 Drain piping 26 Bowl surface washing apparatus 36 Drainage channel 40 Injection nozzle (supply port)
42 Supply pipe 44 Water supply valve 46 Ozone generator (source of disinfectant)
48 Aspirator

Claims (6)

  A flush water supply port is provided in the drainage pipe upstream of the urinal side of the drainage pipe through which drainage from the urinal flows and downstream from the water storage part of the drainage trap of the urinal. The cleaning water supply pipe is connected to the supply port, and the cleaning water is supplied directly from the supply port to the drainage channel without passing through the bowl surface of the urinal and the water storage part of the drain trap. And a urinal washing device, wherein the drainage channel is washed.   2. The urinal washing device according to claim 1, wherein the washing water contains a bactericidal agent.   The urinal washing device according to claim 2, wherein ozone is contained as the sterilizing agent.   4. The urinal cleaning device according to claim 1, wherein the supply port is configured as an injection nozzle that injects the cleaning water.   In any one of Claims 1-4, the said supply pipe branched and extended from the bowl surface washing | cleaning apparatus which supplies the washing water for bowl surface washing | cleaning to the said bowl surface, and wash | cleans this bowl surface, This bowl surface And a urinal washing device comprising a bypass pipe that bypasses the water reservoir of the drain trap and connects to the supply port.   3. The supply pipe according to claim 2, wherein a water supply valve and a suction device for sucking the germicide from a supply source of the germicide by a water flow in the supply pipe and containing the germicide in the cleaning water are provided. A urinal cleaning device.