JP3853825B1 - Circulating flush toilet for men - Google Patents

Abstract

A circulation flush toilet for men that can achieve a great water-saving effect is provided.
A circulation flush toilet for men, in which a flush toilet 3, a wash water storage tank 7 for storing wash water, and a wash water in the wash water storage tank 7 are circulated to the flush toilet 3. The washing water circulation means 27, the human body detection means 47 for detecting the human body, and the washing water that has been washed inside the flush toilet 3 by flowing small water into the flush toilet 3 to the drain pipe 15 is stored in the washing water. A switching valve 17 that can switch the outflow path 11 from the inside of the flush toilet 3 to flow into the tank 7 is provided, and a washing water concentrating part 9 for concentrating the washing water is provided at the bottom of the washing water storage tank 7. The washing water storage tank 7 is sealed so as to prevent the outflow of odor in the washing water storage tank 7 in a normal state.
[Selection] Figure 1

Description

  The present invention relates to a men's circulating flush toilet, and more particularly, to a men's circulating flush toilet that is designed to facilitate installation by unitizing the overall configuration and achieve a great water-saving effect.

2. Description of the Related Art Conventionally, toilets for men have been developed in which washing water (cleaning liquid) is flown by detecting that a person approaches the flush toilet and is used, and flush water is flushed after use of the toilet. In this kind of toilet, although the toilet bowl can be automatically cleaned, there is a problem that the amount of water used for cleaning is large. Then, the circulation type flush toilet which purifies sewage and reuses it as washing water is proposed (for example, refer to patent documents 1).
JP 2004-11236 A

  In the invention described in Patent Document 1, since it is configured to have casters, it is easy to move and can be easily installed at a desired position, but the sewage is purified on the first tank as the sewage tank. In order to do this, a second tank including the first to third tanks is provided, and a toilet is provided adjacent to the second tank. Therefore, there is a problem that the overall configuration becomes large and the occupied area becomes large.

  In addition, in the invention described in Patent Document 1, when the sewage in the first tank is fed to the second tank, an expensive pump having a cutter blade for breaking sewage and paper pieces in the sewage is used. There is a problem that the overall configuration becomes a high value configuration.

The present invention has been made in view of the above-described problems, and is a male circulation flush toilet, a flush toilet, a wash water storage tank for storing wash water, and wash water in the wash water storage tank Washing water circulation means for circulating the water to the flush toilet, human body detection means for detecting the human body, and small water to the flush toilet is discharged to a drain pipe connected to a sewer to wash the flush toilet And a switching valve capable of switching the outflow path from the flush toilet in order to flow the washed water into the washing water storage tank, and the bottom of the washing water storage tank has a concentration of washing water for concentrating the washing water In order to supply new washing water to the washing water storage tank, the washing water concentration part and the drain pipe are connected and provided with a first on-off valve. And a second on-off valve in the supply pipe When the flush toilet is not in use or at a predetermined time, the first on-off valve is opened to discharge the flush water in the flush water storage tank to the drain pipe, The first open / close valve is closed and the second open / close valve is opened to store new wash water in the wash water storage tank.

In the men's circulation flush toilet, the bottom of the wash water storage tank is formed in a cone shape .

  According to the present invention, the small water in the flush toilet is discharged to the drain pipe, the small water component adhering to the flush toilet is washed, and the wash water is circulated and used. The amount of water used is reduced and the water-saving effect is improved.

  As conceptually and schematically shown in FIG. 1, a male circulating flush toilet 1 according to an embodiment of the present invention includes a housing 5 having a flush toilet 3. A washing water storage tank 7 for storing an appropriate amount of washing water W for washing the flush toilet 3 is provided on the lower side in the housing 5. A cleaning water concentration part 9 is provided at the bottom of the cleaning water storage tank 7 so as to concentrate the cleaning water W in one place. In other words, the bottom of the cleaning water storage tank 7 is appropriately inclined so that the cleaning water concentration portion 9 is lowest.

  As a configuration for forming the washing water concentration portion 9, it is desirable to form the bottom portion of the storage tank 7 in a cone shape such as a cone or a pyramid, but for example, it may be formed in an appropriate curved surface such as a bowl shape. is there.

  The outflow passage 11 provided at the bottom of the flush toilet 3 is branched into a communication passage 13 communicating with the washing water storage tank 7 and a drainage passage (drainage pipe) 15 connected to a sewer (not shown). A switching valve 17 is provided at a branch portion between the communication path 13 and the drainage path 15. This switching valve 17 cuts off the connection between the outflow path 11 and the drainage path 15 when the outflow path 11 and the communication path 13 are connected, and conversely, when the outflow path 11 and the drainage path 15 are connected, This serves to block the connection between the outflow passage 11 and the communication passage 13. The switching valve 17 is configured to be switched by an appropriate actuator such as a solenoid such as a flap valve, a three-way valve, or a rotary valve that switches the flapper by a rotary actuator.

  A drainage pipe 19 connected to the drainage channel 15 is connected to the flushing water concentration section 9 of the flushing water storage tank 7, and the drainage pipe 19 can be freely cut off from and connected to the drainage pipe 19, for example, a solenoid valve. An on-off valve 21 is provided. The on-off valve 21 is opened when the washing water in the washing water storage tank 7 is discharged. Then, after the cleaning water is discharged by the opening operation of the on-off valve 21, a supply pipe 23 for supplying new cleaning water into the cleaning water storage tank 7 is connected. A valve 25 is provided.

  In order to circulate the washing water stored in the washing water storage tank 7 in order to wash the flush toilet 3, washing water circulation means 27 is provided in the housing 5. More specifically, the cleaning water circulation means 27 includes a pump 10 that sucks the cleaning water W from the vicinity of the cleaning water concentration portion 9 of the cleaning water storage tank 7, and a discharge side pipe 31 of the pump 10 includes For example, a purification means 33 such as a cyclone is provided. The discharge side pipe 31 is connected to a sub tank 35 provided in the housing 5.

  When the washing water is circulated to the flush toilet 3 by the pump 10, a filter is provided on a pipe connected to the suction side of the pump 10 in place of the purification means 33. It is also possible to provide a filter device at the position. Further, when the circulating wash water is relatively clean, the purification means 33 can be omitted.

  The sub tank 35 temporarily stores wash water for flowing to the flush toilet 3, and a discharge pipe 37 for discharging the wash water in the sub tank 35 is connected to the sub tank 35. The discharge pipe 37 is provided with an open / close valve 39. Further, an overflow pipe 41 is connected to the sub tank 35. Furthermore, a pump 43 for flowing the wash water in the sub tank 35 to the flush toilet 3 is provided, and a pipe 45 connected to the upper side of the flush toilet 3 is provided.

  The discharge side pipe 31 and the pipe 45 may be directly connected. In this case, the sub tank 35 and the pump 43 may be omitted.

  The housing 5 is provided with a human body detecting means 47 including an appropriate proximity sensor such as an ultrasonic sensor, and a control device 49 for controlling various actuators is provided at appropriate positions. When the human body detecting means 47 detects a person who uses (uses) the flush toilet 3, the control device 49 connects the outflow passage 11 and the drainage passage 15 of the flush toilet 3 with each other. The switching of the switching valve 17 is controlled. Then, when the human body detecting means 47 detects that the user (user) has finished using the flush toilet 3 (leaving away), the control device 49 causes the pump 10 to wash the flush toilet 3. Or the pump 43 is driven to flow the washing water into the flush toilet 3, and the switching operation of the switching valve 17 is controlled to connect the outflow passage 11 and the communication passage 13. That is, the control device 49 controls various operations of the circulating flush toilet 1 as described later.

  In the configuration as described above, when a user (user) approaches the housing 5 to use the flush toilet 3, the user is detected by the human body detection means 47. At this time, since the switching valve 17 is in a state where the outflow channel 11 and the drainage channel 15 are connected, the user's urine (small water) is discharged through the drainage channel 15 to the sewer or the like. Then, when it is detected by the human body detecting means 47 or the like that the user has left the housing 5 or has finished using it, the pump 43 is driven for a predetermined time, and a predetermined amount of flushing water is caused to flow into the flush toilet 3 to rinse While the toilet bowl 3 is washed, the switching valve 17 is switched so that the outflow path 11 and the communication path 13 are connected.

  Therefore, the washing water after washing the flush toilet 3 is collected in the washing water storage tank 7. At this time, most of the user's small water is discharged to the drainage channel 15 side, and the washing water is for washing the flush toilet 3 by washing out a small amount of small water adhering to the surface of the flush toilet 3. Therefore, the amount of sewage (small water) collected in the washing water storage tank 7 is small. Therefore, the degree of contamination of the cleaning water in the cleaning water storage tank 7 is greatly delayed as compared with the case where the entire amount of small water also flows into the cleaning water storage tank 7. In other words, the washing water is kept in a relatively clean state for a long time.

  Therefore, the frequency of replacing the cleaning water is reduced depending on the degree of contamination of the cleaning water in the cleaning water storage tank 7, and the water saving effect is improved. In addition, when cleaning the flush toilet, an appropriate purification solution “for example“ TRIEX-1 ”(trade name)” may be added to the washing water, but the amount of the purification solution added can be reduced, In some cases, the addition of the purification solution can be omitted. Further, since the amount of dirty water collected in the washing water storage tank 7 is small, the volume of the washing water storage tank 7 can be reduced, and the overall configuration can be downsized. is there.

  As described above, after the washing water is supplied to the flush toilet 3 and washing is performed, when the predetermined time set in advance by a timer (not shown) elapses, the switching valve is controlled under the control of the control device 49. Reference numeral 17 denotes an initial state, that is, a state in which the outflow channel 11 and the drainage channel 15 are connected. By the way, when the odor in the communication path 13 or the drainage path 15 is worrisome, the connection between the outflow path 11 and the communication path 13 and the drainage path 15 is normally blocked by the switching valve 17. It is desirable to hold it.

  As described above, the cleaning water in the sub tank 35 is reduced by flowing the cleaning water in the sub tank 35 to the flush toilet 3 by the driving of the pump 43. For example, an appropriate water level such as a float sensor is used. When detected by a sensor (not shown), the pump 10 is driven under the control of the control device 49, and the cleaning water in the cleaning water storage tank 7 is replenished to the sub tank 35. At this time, the washing water flowing into the sub-tank 35 is one in which minute solids are removed by the purifying means 33 such as an appropriate filter or cyclone.

  As described above, when the flush toilet 3 is repeatedly washed many times by circulating the flush water in the flush water storage tank 7 and the flush toilet 1 is no longer used or when a predetermined time comes, the on-off valve 21 , 39 are opened, and the cleaning water in the cleaning water storage tank 7 and the sub tank 35 is discharged to the drainage channel 15. The predetermined time can be detected by comparing a time (for example, 22:00) preset in the memory of the control device 49 with the time of a clock provided in the control device 49. Further, when the flush toilet 1 is no longer used, it is no longer used, for example, by detecting that the illumination of the place where the flush toilet 1 is installed is turned off, for example, by an optical sensor (not shown) even before the predetermined time. This can be detected by detecting an appropriate number of conditions (for example, a condition in which the door of the installed building is locked and there is no person in the building).

  As described above, when the cleaning water in the cleaning water storage tank 7 is discharged, the cleaning water concentration section 9 is formed at the bottom of the cleaning water storage tank 7, and the cleaning water concentration section 9 is lowest at the bottom. Thus, the starch that tends to stay at the bottom of the wash water storage tank 7 flows down to the wash water concentration part 9 and is discharged. Therefore, the starch does not stay at the bottom of the washing water storage tank 7, and the generation of odor caused by the stay of starch can be prevented.

  As described above, after the washing water is discharged from the washing water storage tank 7 and the sub tank 35, the on-off valves 21 and 39 are closed, and the on-off valve 25 is opened to provide new information on the washing water storage tank 7. By supplying the cleaning water and driving the pump 10 to replenish the sub tank 35 with new cleaning water, the cleaning water storage tank 7 and the sub tank 35 can be in an initial state in which new cleaning water is stored. is there.

  When new cleaning water is stored in the cleaning water storage tank 7 and the sub tank 35, it is possible to store new cleaning water again after the cleaning water storage tank 7 and the sub tank 35 are once cleaned with new cleaning water. .

  As will be understood from the above description, the flush toilet 3 is washed by circulating the wash water collected in the flush water storage tank 7, and most of the small water of the user of the flush toilet 3 is used. Is discharged to the drain pipe 15 and cleans small moisture adhering to the flush toilet 3, so that the degree of contamination of the wash water collected in the wash water storage tank 7 is slow, and the wash water storage tank 7 The number of times the cleaning water is discharged from the water is less than the number of users, and a great water-saving effect can be obtained.

  By the way, in order to more reliably prevent the odor of the cleaning water in the cleaning water storage tank 7 and the sub tank 35 from leaking to the outside, the cleaning water storage tank 7 and the sub tank 35 normally do not emit the odor. It is desirable to have a sealed configuration. In this case, for example, the following configuration can be adopted. In addition, since the structure of the sub tank 35 can be set as the structure according to the washing water storage tank 7, it illustrates about the case of the washing water storage tank 7, and there exists a component which has the same function as the component in embodiment mentioned above. The same reference numerals are assigned to the same parts, and redundant description is omitted.

  FIG. 2 conceptually and schematically shows the wash water storage tank 7 in a sealed state. In this embodiment, a check valve 51 for preventing the outflow of gas from the cleaning water storage tank 7 is provided in the upper part of the cleaning water storage tank 7 while allowing the outside air to flow into the cleaning water storage tank 7. ing. Furthermore, an actuator 57 that can press the valve body 53 provided in the check valve 51 against the urging force of the spring 55 is provided. The actuator 57 only needs to press the valve element 53 when necessary to open the check valve 51. For example, a solenoid or the like can be used.

  In the present example, the actuator 57 is exemplified by a fluid pressure cylinder 61 in which a piston 59 is reciprocally movable. The piston 59 is provided with a piston rod 63 that can press the valve body 53 with its tip. A spring 65 that urges the piston rod 63 in a direction away from the valve body 53 is elastically mounted in the fluid pressure chamber on the piston rod side in the fluid pressure cylinder 61. The fluid chamber on the piston side communicates with the inside of the washing water storage tank 7 through a communication hole 67.

  With the above configuration, when the cleaning water W in the cleaning water storage tank 7 is sucked through the filter by driving the pump 10 and the inside becomes negative pressure, the valve body resists the biasing force of the spring 55 in the check valve 51. 53 is moved inward, the check valve 51 is opened, and the outside air is sucked. Similarly, outside air is sucked from the check valve 51 when the opening / closing valve 21 is opened to discharge the internal cleaning water. That is, the cleaning water W in the cleaning water storage tank 7 can be sucked and discharged without any problem.

  Note that a slight pressure change in the sealed wash water storage tank 7 is absorbed by the upper air layer, so that it does not cause a big problem.

  When the opening / closing valve 25 is opened to replenish fresh wash water into the wash water storage tank 7 from the supply pipe 23, the pressure in the wash water storage tank 7 gradually increases as the wash water is supplied. . The pressure in the washing water storage tank 7 acts on the fluid pressure chamber on the piston side of the fluid pressure cylinder 61 and presses the piston 59 against the urging force of the spring 65, so that the piston rod 63 is the valve body of the check valve 51. 53 is pressed to open the check valve 51. Therefore, since the gas in the washing water storage tank 7 flows out through the check valve 51, new washing water can be replenished to the washing water storage tank 7 without any problems. .

  As already understood, since the check valve 51 is closed in the normal state, the gas in the wash water storage tank 7 can be prevented from flowing out to the outside in the normal state. In addition, in the structure sealed in this way, it is also possible to planarize the bottom part of the washing water storage tank 7. FIG.

  By the way, the present invention is not limited to the configuration as described above, and can be implemented in other modes by making appropriate changes. For example, instead of the opening / closing valve 21, an opening / closing valve capable of opening and closing the opening of the drainage pipe 19 may be provided at the connection portion between the bottom of the washing water storage tank 7 and the drainage pipe 19. is there. The on-off valve 39 can have the same configuration.

  Further, the supply pipe 23 is arranged corresponding to the height position corresponding to the sub tank 35 or the vicinity of the end of the pipe 45 to supply new wash water from the sub tank 35 side to the wash water storage tank 7 side, It is also possible to supply new washing water from the flush toilet 3 side to the washing water storage tank 7 side.

  Further, when the cleaning water is discharged from the cleaning water storage tank 7, it is possible to use a pump to discharge the cleaning water to the high drainage channel 15 if necessary. Furthermore, it is also possible to provide a discharge trap at an appropriate part such as the part of the outflow passage 11 like a normal flush toilet. That is, various changes can be made as a design.

It is explanatory drawing which showed notionally and schematically the whole structure of the circulation type flush toilet which concerns on embodiment of this invention. It is the structure explanatory drawing which showed notionally and schematically the structure of the washing water storage tank which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circulating flush toilet 3 Flush toilet 5 Housing 7 Washing water storage tank 9 Washing water concentration part 10 Pump 11 Outflow path 13 Communication path 15 Drainage path (drainage pipe)
17 Switching valve 19 Drain pipe 21 On-off valve 23 Supply pipe 27 Washing water circulation means 33 Purification means 35 Subtank 43 Pump 47 Human body detection means 49 Control device

Claims (2)

  A male flush toilet, a flush toilet, a wash water storage tank for storing wash water, a wash water circulation means for circulating wash water in the wash water storage tank to the flush toilet, and a human body The body flushing means for detecting the human body detecting means and the small flush water in the flush toilet to flow out to a drain pipe connected to a sewer and flushing the flushed water in the flush toilet to the flush water storage tank A switching valve capable of switching the outflow path from the inside, and the bottom of the washing water storage tank is inclined so that the washing water concentration portion for concentrating the washing water is lowered, and this washing water concentration portion And the drain pipe are connected to each other, a first on-off valve is provided, a supply pipe for supplying new washing water to the washing water storage tank is provided, and a second on-off valve is provided to the supply pipe When the toilet is not in use When the predetermined time comes, the first on-off valve is opened to discharge the wash water in the wash water storage tank to the drain pipe, the first on-off valve is closed, and the second A male-use circulating flush toilet, wherein the on-off valve is opened and new wash water is stored in the wash water storage tank. 2. The male circulating flush toilet according to claim 1 , wherein the bottom of the flush water storage tank is formed in a conical shape.

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