JP2006144417A - Sanitary flushing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sanitary flushing device for improving an injection performance of the sanitary flushing device. <P>SOLUTION: The sanitary flushing device can wash off by flushing water mixed with air from an air passage 18 by covering related components of a nozzle means 14 equipped with a fluid element 16 with a nozzle enclosure 19 formed from the antibacterial material, it can obtain the feeling of discharge and the comfortable and strong feeling of washing and, at the same time, it can realize the compatibility of the effects of holding cleanness by covering the nozzle means with the antibacterial material. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sanitary washing apparatus including a fluid ejection device that ejects washing water toward a local area of a person using a toilet.

  Conventionally, as shown in FIG. 9, a fluid ejection device mounted on this type of sanitary washing device includes a nozzle rod portion 1, a nozzle head portion 3 having water discharge holes 2 for ejecting washing water, and a nozzle rod. A nozzle cylinder 4 for storing the portion 1 when not in use, and a nozzle cleaning head 5 for cleaning the nozzle head portion 3 when stored. The nozzle head portion 3 is watertight at the tip of the nozzle rod portion 1. It is joined to.

  Further, the nozzle head portion 3 has a first nozzle cover 6 made of stainless steel inserted on the outer peripheral surface of the upper surface and the side surface excluding the water discharge hole 2, and the lower portion is covered with a stainless steel insert plate 7. Further, the nozzle rod portion 1 is also inserted with a second nozzle cover 8 made of stainless steel.

  A first water passage 9 and a second water passage (not shown) pass through the nozzle rod portion 1 in parallel, and the nozzle head portion 3 is connected to the first water passage 9 in a watertight manner. 3 water channel 10, a fourth water channel 11 that is water-tightly coupled to a second water channel (not shown), the third water channel 10 and the fourth water channel 11 cross each other, and the top surface is in the water discharge hole 2. A cylindrical mixing chamber 12 is provided. Here, the third water channel 10 communicates with the lower part of the mixing chamber 12, and the fourth water channel 11 communicates with the tangential direction of the cylindrical mixing chamber 12.

In the above configuration, there is almost no gap between the outer peripheral surface of the nozzle head portion 3 and the inner surface of the first nozzle cover 6 and there is almost no gap between the outer peripheral surface of the nozzle rod portion 1 and the inner surface of the second nozzle cover 8. Cleanliness can be improved without filthy water at the time or water at the time of nozzle cleaning entering the gap (see, for example, Patent Document 1).
JP 2004-183275 A

  However, in the conventional configuration, it is impossible to prevent contamination such as a step between the nozzle head portion 3 and the nozzle rod portion 1 and a gap between the nozzle cylinder 4 and the nozzle head portion 3, and the jet flow from the water discharge holes 2 is dispersed in the swirling direction. Therefore, there was a problem that the feeling of cleaning was weak.

  In view of the above-described conventional problems, the problem to be solved by the present invention is to provide a sanitary washing apparatus that provides a strong washing feeling with a flow feeling and maintains comfort and cleanliness.

  In order to solve the conventional problems, a sanitary washing device according to the present invention includes a nozzle unit having a discharge unit that discharges a liquid for cleaning a human body part, a liquid channel that guides the liquid to the nozzle unit, and the discharge unit. An air mixing means for mixing air into the liquid upstream, an air flow path for guiding air to the air mixing means, a nozzle covering the liquid flow path, the nozzle means, the air mixing means, and the air flow path A case and a driving means for driving the nozzle case are provided, and the nozzle case is made of an antibacterial material.

  By the above means, it is possible to wash with aerated washing water, a strong washing feeling with a flow feeling can be obtained, and cleanliness due to antibacterial action can be maintained.

  The sanitary washing apparatus of the present invention covers both the nozzle means and the like with a nozzle housing formed of an antibacterial material, thereby achieving both a strong washing feeling with a flow rate and a clean maintenance by antibacterial action by washing with aerated washing water. Can be realized.

  According to a first aspect of the present invention, there is provided a nozzle means having a discharge means for discharging a liquid for cleaning a human body part, a liquid flow path for introducing a fluid to the nozzle means, and air mixing for mixing air into the liquid upstream of the discharge means Means, an air flow path for introducing air to the air mixing means, a nozzle casing covering the liquid flow path, the nozzle means, the air mixing means and the air flow path, and a drive for driving the nozzle casing The nozzle housing is made of an antibacterial material, so that it can be washed with washing water mixed with air, has a flow feeling, can provide a comfortable and strong feeling of washing, and has an antibacterial material nozzle By covering the nozzle means with the housing, it is possible to achieve both the effects of maintaining cleanliness.

  In the second aspect of the invention, in particular, the driving means of the first aspect of the invention is configured to control the opening degree adjusting means of the air inlet provided in a part of the nozzle casing or a part joined to the nozzle casing. Air suction can also be controlled by a driving means for driving the nozzle housing, and downsizing can be achieved.

  In the third invention, in particular, the opening degree adjusting means of the second invention is configured to control at least one of the opening degree adjusting operation and the opening / closing operation of the air inlet port. When both the degree adjustment and opening / closing operations are performed, the control structure of the air inlet can be reduced in size.

  In the fourth aspect of the invention, in particular, the drive means of any one of the first to third aspects is constituted by electric means, so that fine position adjustment is possible, fine control of the air intake amount can be performed, and cleaning is performed. Improvement of feeling and positioning of nozzles become easy.

  In the fifth aspect of the invention, in particular, the air flow path of any one of the first to fourth aspects is configured by a portion other than the liquid flow path inside the nozzle casing, so that the air flow path is a nozzle casing. It becomes possible to use both, and an improvement in assembly and miniaturization can be realized.

  In the sixth aspect of the invention, in particular, the nozzle casing of any one of the first to fifth aspects is made of metal, so that dirt is less likely to adhere and cleanliness can be maintained.

  In the seventh aspect of the invention, the nozzle casing of the sixth aspect of the invention is made of stainless steel metal, so that dirt is less likely to adhere and can be kept clean. It becomes possible to mold in one piece, and it is easy to assemble.

  In the eighth invention, in particular, a fluid element means is provided upstream of the discharge means of any one of the first to seventh inventions, and the ejection direction from the discharge means is changed by the fluid element means. As a result, the jet flow hits uniformly without concentrating on one point of the human body part, so that the pain is relieved and there is a feeling of flow and a feeling of washing is good.

  In the ninth aspect of the invention, in particular, the fluid element means of the eighth aspect of the invention is configured so that the opening direction adjusting means can perform the operation of changing the ejection direction from the discharge means and the operation of stopping the changing operation. Therefore, it is possible to perform a cleaning operation uniformly and a cleaning operation concentrated on a single point, which can be used properly by the user.

  In the tenth aspect of the invention, in particular, the discharge means of the eighth aspect of the invention is changed in the ejection form by the fluid element means, and the discharge means for cleaning the buttocks and the discharge means for bidet cleaning are combined. A single discharge means can be used separately for the buttocks and for the bidet, and can be downsized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiment.

(Embodiment 1)
FIG. 1 shows a cross section of a nozzle portion of a sanitary washing toilet seat device according to a first embodiment of the present invention.

  The nozzle part shown in FIG. 1 corresponds to the nozzle part 38 of the sanitary washing toilet seat apparatus shown in FIG. 3, and has a discharge means 13 as a discharge means for discharging water, which is a liquid for cleaning a human body part. 14, a fluid flow path 15 that guides the liquid to the discharge port 13, a fluid element unit 16 having an air supply port 17 as an air mixing unit that mixes air into the liquid as bubbles on the upstream side of the discharge port 13, An air flow path 18 that guides air to the inlet 17, a nozzle casing 19 that covers the liquid flow path 15, the nozzle means 14, the fluid element means 16, the air supply inlet 17 and the air flow path 18, and the nozzle casing 19 are driven. A stepping motor 20 is provided as driving means (also referred to as sliding).

  The nozzle housing 19 is made of stainless steel as an antibacterial material and is drawn by drawing so as to integrally cover the liquid flow path 15, the nozzle means 14, the fluid element means 16, the air supply port 17, and the air flow path 18. It is integrally formed with an elongated bottomed cylindrical pipe whose tip is closed. Further, the nozzle housing 19 has a gear 21 for sliding the nozzle portion between a use position and a non-use position (also referred to as a storage position) at the bottom, and an air suction port 22 for guiding outside air to the air flow path 18 at the rear end. Provided in each part.

  The opening degree adjusting valve 23 is attached to the support portion 23 a and contacts the outer peripheral surface of the sliding nozzle housing 19 to control the opening degree adjusting means for controlling the opening degree of the air inlet 22 and the opening and closing of the air inlet 22. It is a means that doubles as an opening and closing means. That is, the opening degree adjusting valve 23 has a plurality of recesses 23 b that are open to the outside on the left and right sides with the same opening area along the longitudinal direction of the nozzle housing 19 on the inner surface opposite to the outer peripheral surface of the sliding nozzle housing 19. One of the recesses 23b is opposed to the air inlet 22 as shown in FIG. 1 in the relative positional relationship with the nozzle housing 19 that is formed and slid, and the air inlet 22 as shown in FIG. With the closed and open / closed control and any of the recesses 23b facing the air suction port 22 as shown in FIG. 1, the sliding of the nozzle housing 19 is further finely adjusted to face the air suction port 22. The degree of opening is controlled by changing the opening area of 23b to adjust the air intake amount.

  A closing plug 24 closes the rear end of the nozzle housing 19 and guides the cleaning water supplied through the connected connecting tube 25 to the liquid flow path 15. 26 is a water adjustment valve for adjusting the flow rate of water, 27 is a stepping motor for a valve that moves the water adjustment valve, and 28 is a pipe.

  As shown in FIG. 2, the air supply port 17 communicates with an air flow path 18 that is a space provided between the nozzle housing 19 and the nozzle means 14. The air flow path 18 uses a portion of the nozzle housing 19 other than the liquid flow path 15, that is, a space between the nozzle housing 19 and the outer periphery partitioned by the liquid flow path 15 inserted therein. It is composed.

  Further, as shown in FIG. 3, the sanitary washing toilet seat device includes a filter 31 and a shut-off valve 32 in order from the upstream side to a pipe 28 branched by a branch means 30 from a main pipe 29 that supplies water as a liquid. The flow rate sensor 33, the incoming water temperature sensor 34, the heating means 35, the hot water temperature sensor 36, the water regulating valve 26, the control means 37 for controlling them, and the buttocks washing described in FIGS. It was set as the structure provided with the nozzle part 38 which served as a nozzle and a bidet washing nozzle.

  The sanitary washing toilet seat device mounted with the nozzle portion 38 of the present embodiment configured as described above is controlled by the control means 37 and performs the operations and actions described below. That is, water is supplied from the main pipe 29 and flows into the shutoff valve 32 through the filter 31. Then, when starting the cleaning operation, the stepping motor 20 is operated to slide the nozzle housing 19 to a predetermined position (position for washing the butt or bidet washed at the start of the cleaning) via the gear 21 and shut off. The valve 32 is opened and water flow is started. The heating means 35 instantaneously heats the water to an appropriate temperature based on information from the flow rate sensor 33, the incoming water temperature sensor 34, and the hot water temperature sensor 36, and is adjusted by the water adjustment valve 26. Warm water is passed through.

  At this time, the hot water supplied from the pipe 28 is passed through the liquid channel 15 in the channel inside the nozzle portion 38. The hot water is passed through the guide channel 39 and the throttle channel 40 provided in the nozzle means 14, then passes through the fluid element means 16 and is ejected from the discharge port 13.

  Then, the flow rate of the warm water is increased in the throttle channel 40 upstream of the fluid element means 16 and passes through the discharge port 13. At this time, since the depressions 41 and 42 of the fluid element means 16 become negative pressure, outside air is sucked from the air suction port 17. Here, when a predetermined flow velocity is reached, air is sucked from one of the two depressions 41 out of the two depressions, so that the jet is slightly separated from the depression 41. As a result, the flow approaches the other recess 42 side.

  And the jet direction from the discharge outlet 13 will shake. Thereafter, air is supplied from the air inlet 17 on the recess 42 side, and the flow moves away from the recess 42 and approaches the recess 41 again. In this way, by repeating the operation in which the flow alternates toward and away from the recessed portion 41 side and the recessed portion 42 side, the jet direction of the washing water from the discharge port 13 fluctuates (also referred to as rocking). It will be. By such jets, the jets uniformly hit without hitting one point on the human body local area, so that the pain is alleviated and the human body can be washed with a good flow feeling and a strong washing feeling.

  The air intake port 22 provided on the upstream side of the air flow path 18 that guides air to the air supply port 17 is one of the opening degree adjustment valves 23 depending on the relative positional relationship with the sliding nozzle housing 19. By finely adjusting the opening area of the concave portion 23b facing the concave portion 23b and facing the concave portion 23b, the degree of air suction can be adjusted.

  Here, when the outside air inlet 22 is opened by the opening degree adjusting valve 23, the operation of changing the jet flow is repeated as described above. However, if the outside air intake port 22 is closed by the opening degree adjusting valve 23, air is not sucked into the recessed portions 41 and 42, and the flow from the throttle channel 40 approaches or moves away from the recessed portions 41 and 42. Phenomenon will not occur. As a result, the direction of the jet from the discharge port 13 is also constant.

  As described above, in this embodiment, the operation of changing the ejection direction of the washing water from the discharge port 13 and the operation of stopping the changing operation are performed, that is, the operation of cleaning evenly, and the cleaning concentrated on one point. For example, the user can use the former for bidet cleaning and the latter for hip cleaning.

  In addition, it is possible not to close the air supply to the two air supply ports 17 at the same time, but also to close only one side to stop the fluctuation in the jet direction and concentrate it on one point. At this time, since the jet is ejected in a biased direction, it is possible to employ a method of maintaining the target to the human body part in conjunction with the operation of moving the position of the nozzle housing 19 by the stepping motor 20.

  In this way, the opening degree adjusting valve 23 of the air suction port 22 can be used in common with the stepping motor 20 as a drive unit by performing control in conjunction with the movement of the nozzle housing 19 to the use position, and can be downsized. . Further, the opening degree adjusting valve 23 is provided with a plurality of recesses 23b at fine intervals in the sliding direction of the nozzle housing 19 and driven by the stepping motor 20, thereby washing the human body as shown in FIG. Therefore, it is possible to adjust the air suction at the optimum nozzle position, and to simultaneously adjust the position of the nozzle housing 19 and the opening of the outside air inlet 22.

  Then, the fine position adjustment of the nozzle housing 19 can be performed. As a result, the air intake amount can be finely controlled, and the cleaning feeling can be improved and the position of the nozzle can be aligned. Here, FIG. 4 shows a case where the air inlet 22 is closed. The nozzle position can be adjusted not only to the cleaning position but also to the storage position 43 as shown in FIG. 5, and the nozzle position adjustment during nozzle storage and cleaning can be performed by sliding the nozzle housing 19. And the fluctuation control of the jet flow at the time of cleaning can be realized by one stepping motor 20. In FIG. 5, 44 is a toilet bowl, 45 is a toilet seat, 46 is a human body, 47 is a main body of a sanitary washing toilet seat apparatus, and 48 is a water circuit part of the sanitary washing toilet seat apparatus.

  Furthermore, the air flow path 18 that guides air from the air suction port 22 to the air supply port 17 of the nozzle means 14 can be configured by using a space outside the stainless nozzle housing 19 and the liquid flow path 15, and a tube Therefore, it is possible to achieve downsizing that can be incorporated in the main body of the sanitary washing toilet seat apparatus.

  In addition, since the nozzle housing 19 is made of stainless steel having antibacterial properties that prevent germs and the like from breeding, not only the outside of the nozzle housing 19 but also the internal air flow path 18 is difficult to propagate germs. It has become. The nozzle means 14 is built in the nozzle housing 19 to achieve both cleaning with a sense of flow and cleanliness. Further, by forming the nozzle housing 19 from a stainless steel metal, it is possible to integrally mold even an elongated shape such as a nozzle housing, thereby improving assemblability. Here, the antibacterial effect can be further enhanced by using antibacterial materials for the nozzle means 14, the liquid flow path 15, and the opening degree adjusting valve 23 to make it difficult for bacteria to propagate.

  Further, by opening and closing the air suction port 22, it is possible to control an operation in which the ejection direction from the discharge port 13 fluctuates (also referred to as a swinging operation) and an operation that does not fluctuate (also referred to as a direct injection operation). In this case, the direct injection operation is a butt cleaning (shown in FIG. 5), and the swinging operation is a bidet cleaning by slightly protruding the nozzle, thereby cleaning the butt and the bidet with one discharge port 13 ( 6) and miniaturization can be realized.

  This can be realized by the opening degree adjusting valve 23 provided with the air inlet 22 and the concave portions 23b which are a plurality of valve portions, and can control the direct injection operation and the swinging operation even if the nozzle position is changed. It is because it has become. Therefore, the swinging motion can be used for both hip cleaning and bidet cleaning.

  In the above embodiment, the nozzle casing 19 is made of stainless steel. However, other metals and resins may be used as long as they are highly productive metals with excellent antibacterial properties and durability and workability. May be.

  Further, in the above embodiment, the outside air inlet 22 is configured with a hole opened in the side surface of the nozzle housing 19, but a hole provided in the stopper plug 24 or a part of the flow path led from the hole is provided. May be used to adjust the air flow rate. That is, a taper-shaped channel that communicates the outside air and the air channel 18 is provided in the closing plug 24, and the same taper-shaped valve is fitted into this channel to form an opening degree adjusting means, and the valve is fixed. The nozzle housing 19 may be slid to adjust the opening degree and open / close.

  In the above embodiment, the opening adjustment valve 23 is configured to both adjust the air intake amount by adjusting the opening degree of the air intake port 22 and open and close the air intake port 22. It is possible that only one of the two is performed by providing a valve separately.

  Further, although the sliding mechanism of the nozzle housing 19 has been described with the combination of the gear 21, it may be a belt driving mechanism or a linear sliding mechanism. Furthermore, although one discharge port has been described, a plurality of discharge ports may be used. In the above embodiment, the stepping motor 20 is used as the driving means. However, a solenoid may be used. In addition to driving the nozzle casing by these electric means, the nozzle casing is discharged by water pressure. However, it is difficult to finely adjust the air volume, but it is possible to switch between opening and closing the air inlet using adjustment of water pressure and water flow path, and it is possible to realize direct injection operation and rocking operation. Keep it.

  As described above, the sanitary washing device according to the present invention can be washed with washing water mixed with air, has a strong washing feeling with a flow feeling, is comfortable, and maintains cleanliness due to antibacterial action. Both effects can be realized and can be widely applied to sanitary washing instruments.

Sectional drawing of the nozzle part of the sanitary washing apparatus in Embodiment 1 of this invention Side sectional view of the nozzle part of the sanitary washing device Control block diagram of the sanitary washing device Sectional view of the nozzle part during direct injection of washing water in the sanitary washing device Configuration diagram at the time of butt washing using the sanitary washing device Configuration diagram during bidet cleaning using the sanitary cleaning device Sectional view of the nozzle part of a conventional sanitary washing device

Explanation of symbols

13 Discharge port (Discharge means)
14 Nozzle means 15 Liquid flow path 16 Fluid element means (air mixing means)
17 Air supply port 18 Air flow path 19 Nozzle housing 20 Stepping motor (drive means)
22 Air inlet 23 Opening degree adjusting valve (Opening degree adjusting means)
24 Closure plug (part of the part to be joined to the nozzle housing)

Claims (10)

Nozzle means having discharge means for discharging a liquid for cleaning a human body part, a liquid flow path for introducing liquid to the nozzle means, an air mixing means for mixing air into the liquid upstream of the discharge means, and the air mixing An air flow path that guides air to the means, a nozzle housing that covers the liquid flow path, the nozzle means, the air mixing means, and the air flow path, and a drive means that drives the nozzle housing, The nozzle housing is a sanitary washing device made of antibacterial material. The sanitary washing device according to claim 1, wherein the driving means controls an air inlet opening degree adjusting means provided at a part of the nozzle casing or a part joined to the nozzle casing. The sanitary washing device according to claim 2, wherein the opening degree adjusting means controls at least one of an opening degree adjusting operation and an opening / closing operation of the air suction port. The sanitary washing device according to any one of claims 1 to 3, wherein the driving means drives the nozzle housing by electric means. The sanitary washing apparatus according to any one of claims 1 to 4, wherein the air flow path is configured by a portion other than the liquid flow path inside the nozzle housing. The sanitary washing device according to any one of claims 1 to 5, wherein the nozzle housing is made of metal. The sanitary washing apparatus according to claim 6, wherein the nozzle housing is formed of stainless steel metal. The sanitary washing apparatus according to any one of claims 1 to 7, wherein a fluid element means is provided upstream of the discharge means, and the fluid element means is configured to change a jet direction from the discharge means. The sanitary washing apparatus according to claim 8, wherein the fluid element means is configured to perform an operation in which an ejection direction from the discharge means is changed by the opening degree adjusting means and an operation to stop the changing operation. 9. The sanitary washing apparatus according to claim 8, wherein one ejection means changes the ejection form by the fluid element means, and is configured to serve as both the buttocks washing ejection means and the bidet washing ejection means.

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