JP5864806B1 - Toilet unit - Google Patents

Abstract

In a toilet installed in a facility such as a factory and shared by the workers and the like, the spread of contamination of viruses and fungi caused by the use of the toilet by the workers and the like is suppressed. In a toilet unit 11, an airtight chamber 13 having an entrance 21, a toilet booth 15 installed in the room of the airtight chamber 13, a door 23 for opening and closing the entrance 21 and an entrance floor 51 of the entrance 21 are installed. The door opening / closing device that opens the door 23 when the mat sensor 53 is stepped on, and the air curtain is created by the air flow that operates in conjunction with the opening of the door 23 by the door opening / closing device and that flows downward from the upper portion of the door 21. An air curtain generation device and a plasma generation device for mixing plasma into the airflow were provided. [Selection] Figure 1

Description

  The present invention relates to a toilet unit.

  In toilets for workers in factory buildings for pharmaceuticals, foods, etc., since the manufactured products are taken from the mouth or eat and drink, it is particularly necessary to consider hygiene. Since various pathogenic microorganisms exist in the excrement and they are excreted together during defecation, the toilet is a place where there is a high risk of being contaminated by pathogens causing food poisoning and the like. During toilet defecation, there is a high possibility that toilet bowls will be contaminated by norovirus, etc., and toilet knobs etc. will be contaminated via fingers (Ministry of Education, Culture, Sports, Science and Technology HP School Lunch Facility / Equipment Collection-Chapter 3 6 Maintenance of a dedicated toilet for cooks).

  People who have norovirus, so-called carriers, are said to have billions of viruses attached to their fingers after defecation. Bacteria and viruses move to other people through the toilet booth handle, faucet, etc., operated by the fingers of such carriers, and if they enter the drug or food in a factory building such as pharmaceuticals, food, etc. Causes contamination. For this reason, measures such as making the doorway of the toilet an automatic door are taken.

  Patent Document 1 discloses an automatic door device for a toilet that is closed by maintaining a closed state of a door by a push-back operation without using an electric lock device. Patent Document 2 discloses an infrared sensor suitable for use in human body detection such as an automatic door and an automatic flushing device for a toilet. Patent Document 3 discloses a reaction switch device such as an automatic door that prevents a person from tripping over by laying a mat that is simple and extremely thin. Further, Patent Document 4 discloses an automatic door interlocking type air curtain device in which the airflow blocking function of the air curtain is utilized only when the automatic door is open and before and after it.

JP 2005-179983 A Japanese Unexamined Patent Publication No. 7-190852 JP 2013-217035 A JP 2012-112636 A

  However, there is nothing in the conventional toilet that makes an air curtain at the entrance and exits from the place where it enters the toilet until it is used and exits the toilet. For this reason, it is not possible to sufficiently suppress the spread of viruses and bacteria. In addition to this, there is a demand for further sterilization even when leaving the toilet in order to suppress the spread of virus and bacteria contamination.

  The present invention has been made in view of the above situation, and the purpose of the present invention is in a toilet that is installed in a facility such as a factory and is shared by the worker, etc. The object is to provide a toilet unit that can be prevented from expanding.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The toilet unit 11 according to claim 1 of the present invention includes an airtight chamber 13 having an entrance 21;
A toilet booth 15 installed in the airtight chamber 13;
An opening / closing body 23 for opening and closing the doorway 21;
An entrance opening and closing device that opens the opening and closing body 23 when a mat sensor 53 installed on the entrance floor 51 of the entrance 21 is stepped on;
An air curtain generating device 17 that operates in conjunction with the opening of the opening / closing body 23 by the doorway opening and closing device, and creates an air curtain 61 by an airflow directed downward from the upper part of the doorway 21;
A plasma generator 19 for mixing plasma in the airflow;
And having
The air curtain generating device 17 is provided with a plurality of swirl flow generating outlets 67 arranged along the opening direction of the entrance 21.
The swirl flow generating outlet 67 is
A plasma discharge port 73 through which the plasma is supplied by having an axis line in the vertical direction and a lower portion serving as a supply opening;
The nozzle body 63 located around the plasma discharge port 73 is opened at an inner circumferential surface 69 at equal intervals in the circumferential direction, and inclined in the downward direction toward one direction of rotation about the axis. A plurality of swirl flow generating nozzles 65 for blowing out airflow;
It is characterized by comprising.

In this toilet unit 11, when an operator or the like uses the toilet unit 11, the opening / closing body 23 of the doorway 21 is opened by stepping on the mat sensor 53. At this time, simultaneously with the opening of the opening / closing body 23, an air flow is blown out from the upper part of the entrance / exit 21, and a curtain-like air flow, that is, an air curtain 61 is created at the entrance / exit 21. The air curtain 61 flows freely between the airtight indoor air and the airtight outdoor air, that is, by flowing down to the air layer parallel to the entrance / exit surface, so that the air can freely enter and exit between the airtight indoor air and the airtight outdoor air. Suppress. Simultaneously with the operation of the air curtain 61, plasma is released from the plasma generator 19 into the air curtain 61. Plasma loses or kills the activity of bacteria and viruses attached to the clothes of workers. Further, bacteria, viruses, dust, etc. adhering to the surface of clothes and the like are blown away by the airflow of the air curtain 61. As a result, contact infection via bacteria and virus handles, etc., and air infection via air due to the use of the toilet unit 11 by the carrier are suppressed.
In the toilet unit 11, a plurality of swirl flow generating nozzles 65 are opened in the circumferential direction on the inner peripheral surface 69 of the nozzle body 63. Each swirl flow generation nozzle 65 inclines downward in one direction and blows out an air flow. As a result, the nozzle body 63 blows out the swirling flow 59 generated along the inner peripheral surface 69 in a spiral manner downward in the entrance / exit 21. Further, the nozzle body 63 has a negative pressure above the swirl flow generation nozzle 65 and sucks the plasma from the plasma discharge port 73. The sucked plasma flows downward, mixes with the air current, and is dispersed in the swirling flow 59. The swirling flow 59 including the plasma is blown out at a plurality of locations in the direction of the entrance of the entrance 21. As a result, an air curtain 61 having a predetermined thickness in the entrance / exit direction and a predetermined thickness in the entrance / exit direction, that is, a thickness substantially corresponding to the diameter of the swirling flow 59 is formed at the entrance / exit 21.

The toilet unit 11 according to claim 2 of the present invention is the toilet unit 11 according to claim 1,
The swirl flow generating nozzle 65 is
One in the circumferential direction is set as a base point position, and those downstream in the turning direction from the base point position are sequentially arranged at a position along the axis.

  In the toilet unit 11, the swirling flow generating nozzle 65 on the downstream side of the swirling flow 59 is on the lower side along the axis, so that the decelerated swirling flow 59 can be urged again to the original swirling speed. As a result, the swirl flow 59 is easily rectified into a regular spiral, that is, disturbance of the swirl flow 59 is suppressed. Since the swirl flow 59 is arranged in a spiral shape, the generation of turbulence and vortices is suppressed, the loss of airflow energy is reduced, and the swirl flow 59 is directed toward the floor surface 51 below the entrance / exit 21.

  In the toilet unit 11 of the present invention, an entrance / exit sensor 55 for detecting a person's entrance is provided inside the entrance / exit 21, and the detection signal of the entrance / exit sensor 55 is used to open and close the entrance / exit opening / closing device. The air curtain generating device 17 and the plasma generating device 19 may be configured to act as trigger signals for driving and stopping. According to the toilet unit 11, an operator or the like passes through the opened doorway 21. When the person enters the hermetic chamber 13, the entrance is detected by the entrance / exit internal sensor 55 provided inside the entrance 21. This detection signal becomes a trigger signal, the opening / closing body 23 is closed, and the driving of the air curtain generating device 17 and the plasma generating device 19 is stopped.

According to the toilet unit of the first aspect of the present invention, in a toilet attached to a factory or the like, the operator can use it without touching it at all. It is possible to prevent contact infection through the use of the toilet, and it is possible to suppress the spread of viruses and fungi caused by the person using the toilet.
Moreover, according to this toilet unit, a person such as an operator passing through the entrance can be sterilized efficiently in a short time, and plasma can be bathed at the entrance and exit, thereby suppressing the spread of contamination to the inside and outside of the toilet unit. .

  According to the toilet unit of the second aspect of the present invention, the reaching distance of the air curtain is increased by the swirling flow, that is, the air flow and the plasma can be made to reach the floor surface below from the upper part of the entrance / exit.

It is a top view of the toilet unit which concerns on embodiment of this invention. It is a front view of the doorway shown in FIG. It is a front view at the time of door opening of the doorway shown in FIG. FIG. 4 is a side view of FIG. 3. It is the figure which showed the principal part perspective view of a nozzle body and a swirl flow production | generation nozzle in (a), and the expanded view in (b). It is a flowchart explaining the operation | movement at the time of entering a toilet unit system. It is a flowchart explaining the operation | movement at the time of use of the toilet booth of a toilet unit system. It is a flowchart explaining the operation | movement at the time of hand-washing of a toilet unit system. It is a flowchart explaining the operation | movement at the time of leaving of a toilet unit system. It is a top view of the toilet unit which concerns on the modification 1 with which multiple toilet booths were provided. It is a top view of the toilet unit which concerns on the modification 2 whose opening / closing body is a sliding door. It is a top view of the toilet unit which concerns on the modification 3 with which the toilet booth was abbreviate | omitted.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view of a toilet unit 11 according to an embodiment of the present invention.
The toilet unit 11 according to the present embodiment includes an airtight chamber 13, a toilet booth 15, an opening / closing body 23, an entrance / exit opening / closing device, an air curtain generating device 17, and a plasma generating device 19 as main components.

  The airtight chamber 13 is constructed airtight so that there is no air flow to the outside. For example, the airtight chamber 13 is configured so that the interior of the airtight chamber is kept at a low pressure so that the air in the airtight chamber does not leak out of the airtight chamber. The hermetic chamber 13 has an entrance 21. A door 23, which is an opening / closing body, is attached to the entrance / exit 21. The door 23 and the entrance 21 can be hermetically sealed by packing or the like. In the airtight chamber 13, the door 23 is closed, whereby the entrance 21 is closed and airtightness is ensured.

  A wash basin 25 is installed in the airtight chamber 13. The wash basin 25 is provided with a faucet 27 and a hand soap 29. The faucet 27 can discharge and stop water by a non-contact sensor (not shown). As the non-contact sensor, for example, an infrared sensor can be used. For example, in the case of a pyroelectric type infrared sensor, a field effect transistor, a resistor, and an infrared detection element are mounted on a circuit board, and the circuit board is attached to an external lead pin. A metal case having a hole for receiving infrared rays is sealed to the hermetic base. An optical filter that transmits only a desired wavelength region is provided in the hole of the metal case.

  The hand soap 29 can discharge and stop soap water by a non-contact sensor. A hand dryer 31 is installed in the hermetic chamber 13. The hand dryer 31 can also blow out and stop air by a non-contact sensor. In other words, the toilet unit 11 allows the user to perform non-contact operations from hand washing with soapy water to drying. The hermetic chamber 13 is provided with a plurality of lighting devices (not shown).

  The toilet booth 15 is installed in the airtight chamber 13. The toilet booth 15 is provided with a booth entrance 33. The booth door 33 is provided with a booth door 35 that is a booth opening / closing body that is automatically opened and closed. A booth door external sensor 37 that is a non-contact sensor is provided outside the booth entrance 33. A booth door internal sensor 39 that is a non-contact sensor is provided inside the booth entrance 33. Inside the booth entrance 33, a locking / unlocking sensor 41 which is a non-contact sensor is provided. The booth door 35 can be opened and closed without contact by a booth door external sensor 37 and a booth door internal sensor 39. The booth door 35 can be locked and unlocked in a non-contact manner by a locking / unlocking sensor 41. In the present embodiment, as the booth door external sensor 37 and the locking / unlocking sensor 41 of these sensors, for example, hand-holding sensors such as an infrared type are used to detect a user's hand-holding operation, and as the booth door internal sensor 39, For example, a near-infrared reflective sensor or the like is used to detect the approaching state of the user in the toilet booth 15.

  In the toilet booth 15, a toilet 43 by water washing is installed. A flush switch 45 that is a non-contact sensor is provided inside the toilet booth 15. The toilet 43 can be flushed by a flush switch 45 in a non-contact manner. As this running water switch 45, for example, a hand-holding sensor such as an infrared type can be used. The toilet booth 15 is provided with a human body detection sensor 47 in the booth that is a non-contact sensor. The booth human body detection sensor 47 detects the presence or absence of a person in the booth. The toilet unit 11 can display the presence or absence of a person, that is, whether it is in use or not, outside the airtight chamber 13 by the human body detection sensor 47 in the booth. For example, a pyroelectric infrared sensor that detects heat rays emitted from the human body is used as the in-booth detection sensor 47 to detect a human body, that is, a user in the toilet booth 15. In addition, a paper holder (not shown) is installed in the toilet booth 15. The paper holder is used by cutting off the part in contact with the user. That is, the toilet unit 11 is configured so that the user can contact the toilet booth 15 from using the toilet booth 15 to using and leaving the toilet 43 without contact with a door knob or a switch.

FIG. 2 is a front view of the entrance / exit 21 shown in FIG.
An entrance / exit external sensor 49 which is a non-contact sensor is provided outside the entrance / exit 21. As the entrance / exit external sensor 49, for example, a near-infrared reflective sensor or the like can be used, and detects that a person enters or approaches the detection area. A mat sensor 53 is provided on the entrance floor 51 on the outdoor side of the entrance 21. Further, an entrance / exit internal sensor 55 (see FIG. 1) which is a non-contact sensor is provided on the indoor side of the entrance / exit 21. The entrance / exit internal sensor 55 is composed of, for example, a composite sensor (hybrid sensor) that employs two methods of a microwave method and a near-infrared method. It is said that it combines the features of the near-infrared method with quick response, and detects a person approaching the doorway 21 on the indoor side.

  The doorway opening / closing device (not shown) is configured to send a signal to the control device (not shown) when the mat sensor 53 installed on the entrance floor 51 of the doorway 21 is stepped on and the doorway external sensor 49 detects the user. The door engine / reduction gear is driven in response to the signal and the door 23 is opened.

3 is a front view when the doorway 21 shown in FIG. 2 is opened, and FIG. 4 is a side view of FIG.
The air curtain generating device 17 is installed on the upper wall 57 at the entrance 21, for example, on the indoor surface side. The air curtain generating device 17 operates in conjunction with the opening of the door 23 by the entrance opening / closing device, and creates an air curtain 61 composed of a plurality of swirling flows 59 by an air flow directed downward from the upper portion of the entrance 21.

FIG. 5 is a perspective view of essential parts of the nozzle body 63 and the swirling flow generating nozzle 65, and FIG. 5B is a development view thereof.
The air curtain generating device 17 is provided with a plurality of plasma discharge ports 73 and a plurality of swirling flow generating outlets 67 arranged along the opening direction of the inlet / outlet 21. The plasma emission port 73 is formed in a circular shape, for example, and opens in the floor surface direction at the entrance / exit 21, that is, emits plasma from a plasma generator 19 (described later) downward in a substantially vertical axis direction. The swirl flow generation outlet 67 includes a nozzle body 63 and a swirl flow generation nozzle 65. As shown in FIG. 5A, a plurality of nozzle bodies 63 are formed, each formed in an arc-shaped block body, and arranged around the plasma emission port 73 at equal intervals. A plurality of swirl flow generating nozzles 65 are provided at equal intervals in the circumferential direction on the inner peripheral surface 69 of the nozzle body 63, and in this embodiment, three are opened, and the swirl flow generating nozzles 65 are rotated in one direction about the axis. Air is blown out toward the bottom and downward.

  Further, the blow-off opening 71 of the swirl flow generating nozzle 65 has a single point in the circumferential direction as a base point position, as shown in the developed view of each nozzle body 63 in FIG. Those on the downstream side in the turning direction are sequentially arranged at equal intervals P at positions in the downward direction along the axis.

  The plasma generator 19 mixes plasma into the airflow. Plasma is created by applying plasma discharge (streamer discharge, dielectric barrier discharge, etc.) to hydrogen and oxygen in the air. For example, in a streamer discharge, in an asymmetric discharge electrode structure of a needle electrode and a plate electrode, when the voltage applied between both electrodes increases, the electric field locally increases in the vicinity of the needle electrode. As a result, electrons are emitted, which triggers collision ionization with the air, and the number of electrons and ions increases rapidly (unequal electric field breakdown). A flow of a group of charged particles by high energy electrons and ions is called a streamer. Streamer discharge generates streamers and produces active species such as oxygen radicals and hydroxyl radicals. For example, a virus is a molecular assembly composed of DNA or RNA and a protein surrounding it. Viruses exhibit polarization properties under high frequency electric fields, and are instantly destroyed as the electric field is increased. In addition, the virus breaks down (destroys) by breaking hydrogen bonds of DNA and the like by oxygen radicals and hydroxyl radicals.

  The toilet unit 11 is provided with an outside entrance / exit sensor 49 for detecting a person's entry and an inside / outside entrance sensor 55 on the outside and inside of the entrance / exit 21. The detection signals of the entrance / exit external sensor 49 and the entrance / exit internal sensor 55 serve as trigger signals for opening and closing the entrance / exit opening / closing device, driving and stopping of the air curtain generating device 17 and the plasma generating device 19.

The toilet unit system according to the present embodiment includes the toilet unit 11 having the above-described configuration, and operates so as to perform the following basic series of general operations. That is, the toilet unit system detects a person standing at the entrance of the entrance 21 provided in the hermetic chamber 13 and opens the door 23 without contact with fingers.
Simultaneously with the opening of the door 23, an air curtain 61 generated by an air flow including plasma is formed at the entrance 21.
Detection of an entrance / exit sensor 55 provided inside the entrance / exit 21 closes the door 23 and stops the generation of the air curtain 61 and plasma.
The booth door 35 of the toilet booth 15 installed in the airtight chamber 13 is opened without contact with fingers.
After entering the toilet booth 15, the booth door 35 is closed and locked without contact with fingers.
The toilet 43 is flushed without contact with fingers, and the booth door 35 is unlocked and opened without contact with fingers.
A person standing at the exit of the entrance 21 is detected and the door 23 is opened without contact with fingers.

Next, a specific operation of the toilet unit system using the toilet unit 11 will be described using a flowchart.
FIG. 6 is a flowchart for explaining the operation of the toilet unit system when entering the room.
In the toilet unit system, it is determined whether or not the mat sensor 53 laid on the entrance floor 51 of the toilet unit 11 has been stepped on (S1). If the mat sensor 53 has been stepped on, it is determined whether or not the entrance / exit external sensor 49 is detecting a person (S2). If the mat sensor 53 is stepped on and the entrance / exit external sensor 49 detects a person, the door 23 is opened (S3). At the same time, the air curtain generating device 17 and the plasma generating device 19 are driven, and air supply and plasma supply are started (S4). Moreover, the illumination in the airtight chamber 13 is turned on (S5).

  When the entrance / exit internal sensor 55 detects a person entering the hermetic chamber 13 (S6), it is determined whether or not the mat sensor 53 is stepped on (S7). If the entrance / exit internal sensor 55 detects a person and the mat sensor 53 is not stepped on, the door 23 is closed by assuming that the person has entered the room through the entrance / exit 21 (S8). At the same time, the air curtain generator 17 and the plasma generator 19 are stopped (S9).

In the toilet unit system, when the mat sensor 53 laid on the entrance floor 51 of the toilet unit 11 is not stepped on, the door 23 remains closed, that is, remains closed (S10). Accordingly, the air curtain generating device 17 and the plasma generating device 19 are also stopped (S11). The illumination in the airtight chamber 13 is also turned off (S12).
Further, when the mat sensor 53 is stepped on, the door 23 is opened and the air curtain and plasma are operated, the entrance / exit sensor 55 does not detect a person, and the timer starts counting (S13). When the timer count reaches a predetermined value (S14) and the mat sensor 53 is not detecting a person (if it is not stepped on) (S1), the door 23 is closed (S10), the air curtain generator 17, plasma The generator 19 is also stopped (S11), and the illumination is turned off (S12).

FIG. 7 is a flowchart for explaining the operation of the toilet unit system when the toilet booth is used.
When a person puts his hand over the booth door external sensor 37 to use the toilet booth 15 (S21), the booth door 35 is opened (S22). When a person enters the toilet booth 15 and the human body detection sensor 47 in the booth detects a person (S23), the booth door 35 is closed (S24). A person in the toilet booth 15 holds the hand over the locking / unlocking sensor 41 to perform the locking operation (S25), and the booth door 35 is locked (S26). At the same time, an in-use lamp is lit on the outer surface of the wall 57 of the toilet unit 11 (S27). When the operation is performed by holding the hand over the flushing switch 45 (S28), the flushing of the toilet 43 is started (S29). When the unlocking operation is performed by holding the unlocking sensor 41 (S30), the booth door 35 is unlocked (S31). When the user approaches the booth door 35, the booth door internal sensor 39 detects a person (S32), and the booth door 35 is opened (S33). When the booth door 35 is opened, the timer starts counting (S34). When the count of the timer reaches a predetermined value (S35), it is determined that the user has left the room, and the booth door 35 is closed (S36).

Here, the toilet booth 15 is set so that the booth door 35 is always closed when not in use. The booth door 35 is closed when a human body detection sensor 47 installed inside the booth detects the user entering the room. The booth door 35 is locked by holding a hand over the key locking / unlocking sensor 41 provided on the inner wall surface of the booth, and the normal opening operation is impossible from outside the booth.
And after use, it is made to flow by putting a hand over the flowing water switch 45 provided in the wall surface etc. of the front surface in which the toilet bowl 43 was installed. The user unlocks the hand by holding his / her hand over the locking / unlocking sensor 41 again. Then, the sensor 39 above the booth door 35 detects the user leaving the room, and the booth door 35 is opened. That is, the booth door 35 does not open unless the unlocking operation is performed.

FIG. 8 is a flowchart for explaining the operation of the toilet unit system during hand washing.
When the user holds the hand soap 29 over the use position in the toilet unit (S41), soapy water is discharged (S42). By holding a hand under the faucet 27 of the wash basin 25 (S43), tap water flows from the faucet 27 (S44). That is, running water is not performed until after using soapy water. When the hand is held over the hand dryer 31 (S45), dry air is blown out (S46).

FIG. 9 is a flowchart for explaining the operation of the toilet unit system when leaving the room.
When the user exits the room, when the doorway inner sensor 55 detects a person approaching the door 23 (S51), the air curtain generator 17 and the plasma generator 19 are driven (S52). At the same time, the doorway opening / closing device is driven to open the door 23 (S53). When the entrance / exit external sensor 49 detects a person (S54), it is determined whether or not the mat sensor 53 has been stepped on (S55). If the mat sensor 53 is stepped on and the entrance / exit internal sensor 55 is not detecting a person (S56), the entrance / exit external sensor 49 is not detecting a person (S57), and the mat sensor 53 is not stepped on (S58). ), The door 23 is closed assuming that the user has passed through the entrance 21 (S59). At the same time, the air curtain generator 17 and the plasma generator 19 are stopped (S60), it is determined that the toilet booth 15 is not being used (S61), and the illumination is turned off (S62). If the entrance / exit sensor 55 does not detect a person (S51), the door 23 remains closed (S63), and the air curtain generator 17 and the plasma generator 19 also stop (S64). If the door 23 is opened (S53) and the entrance / exit external sensor 49 does not detect a person (S54), the timer starts counting (S56). When the count reaches a predetermined value (S66), the door 23 is closed (S63) on the condition that the entrance / exit sensor 55 is not detecting a person (S51), and the air curtain generator 17 and the plasma generator 19 are turned on. Stopped (S64). Here, in the present embodiment, the door 23 is configured as an opening / closing member that swings inward of the hermetic chamber 13 and opens, as shown in FIG. 1, but the door 23 is open, that is, the opening locus of the door 23 ( The inside / outlet sensor 55 detects that the user has approached the swinging locus) (S51), and the door 23 starts to open slowly, so that the door 23 and the user trying to leave the room collide. There is nothing. Further, when a user is in the airtight chamber 13 outside the detection range of the entrance / exit sensor 55 and away from the opening range of the door 23, and another user enters the room from the outside. As described above, the door 23 is opened as shown in the operation when entering the room. When the user in the airtight chamber 13 enters the opening range of the door 23 and the entrance / exit sensor 55 detects this (S51), the user steps on the mat sensor 53 at the entrance to enter another user from the outside. In the case of (S1), that is, when the user in the airtight chamber 13 leaves the room and at the same time a new user tries to enter from the outside, the door 23 is slowly opened to use the room to leave the room. The door 23 will not hit the person.

Next, the operation of the above configuration will be described.
In the toilet unit 11 according to the present embodiment, the airtight chamber 13 is installed without being directly connected to a manufacturing or storage area (hereinafter referred to as “manufacturing storage area”) for pharmaceuticals, foods, and the like.

  On the other hand, the airtight chamber 13 of the toilet unit 11 is disposed adjacent to the manufacturing storage area so that it can be easily accessed. Here, for example, it is assumed that a factory worker is infected with bacteria or viruses. In addition, some carriers carry out their work without subjective symptoms and can be completely cured without their knowledge.

  When an operator including such an operator uses the toilet unit 11, the door 23 of the doorway 21 is opened by stepping on the mat sensor 53. That is, the operator does not touch the door 23, the door knob, the switch, etc., and the door 23 opens without touching the fingers. At this time, simultaneously with the opening of the door 23, an air flow is blown out from the upper part of the entrance / exit 21, and a curtain-like air flow, that is, an air curtain 61 is created at the entrance / exit 21.

  The air curtain 61 divides the inside and outside of the airtight chamber 13 by flowing downward between the airtight indoor air and the airtight outdoor air (that is, an air layer parallel to the entrance / exit surface), thereby separating the airtight indoor air and the airtight outdoor air. Suppresses free entry and exit of air. Thereby, air infection from the outside of the airtight room to the airtight room and air infection from the airtight room to the outside of the airtight room are suppressed.

  Furthermore, simultaneously with the operation of the air curtain 61, plasma is released from the plasma generator 19 into the air flow of the air curtain 61. Plasma loses or kills the activity of bacteria and viruses attached to the clothes of workers. The toilet unit 11 is shielded (compartmentalized) by the air curtain 61, blows away bacteria and viruses, is sterilized by plasma, or inactivated and blown away. As a result, contact infection via bacteria and virus handles, etc., and air infection via air due to the use of the toilet unit 11 by the carrier are suppressed.

  In the toilet unit 11, a plurality of swirl flow generation outlets 67 are arranged along the entrance direction of the entrance 21. Each swirl flow generation outlet 67 includes a plasma discharge port 73 whose axis is directed in the vertical direction and a lower portion serving as a supply opening, and a plurality of nozzle bodies 63 arranged around the plasma discharge port 73. Plasma generated by the plasma generator 19 is released from the plasma discharge port 73. A plurality of swirl flow generating nozzles 65 are opened on the inner peripheral surface 69 of each nozzle body 63 in the circumferential direction.

  Each swirl flow generation nozzle 65 inclines downward in one direction and blows out an air flow. As a result, the nozzle body 63 blows out the swirling flow 59 generated along the inner peripheral surface 69 in a spiral manner downward in the entrance / exit 21.

  In addition, the nozzle body 63 has a negative pressure above the swirl flow generation nozzle 65 due to the downward air flow, and sucks the plasma from the plasma discharge port 73. The sucked plasma flows downward, mixes with the air current, and is dispersed in the swirling flow 59. Note that the plasma may be supplied to the nozzle body 63 by positive pressure.

  The swirling flow 59 including the plasma is blown out at a plurality of locations in the direction of the entrance of the entrance 21. Thus, an air curtain 61 having a predetermined thickness in the entrance / exit direction and a predetermined thickness in the entrance / exit direction, that is, a thickness substantially corresponding to the diameter of the swirling flow 59 is formed at the entrance / exit 21.

  Note that the swirl flow 59 can be alternately changed in a plurality of directions in which the rotation direction of the air flow is aligned in the front-end direction of the entrance 21. The plurality of swirling flows 59 are arranged in different directions alternately so that the friction between adjacent swirling flows is reduced, and turbulence and vortex are less likely to be generated. The reach distance can be increased toward the floor surface.

  In general, when the air curtain 61 is formed at the entrance / exit 21, a sirocco fan whose rotational axis extends in the front-end direction of the entrance / exit 21 is used. Sirocco fans are expensive. On the other hand, since the toilet unit 11 can use a general axial fan, it can be constructed at low cost. Further, the sirocco fan generally has a slit-like outlet, and the thickness of the air curtain 61 is reduced. For this reason, when the thickness of the air curtain 61 is increased, the sirocco fan needs to be arranged in parallel in the thickness direction, and is further expensive. On the other hand, in the swirling flow 59 using the axial fan, the diameter direction of the swirling flow 59 is the thickness of the air curtain 61, so that the air curtain 61 having a sufficient thickness can be made with one axial fan. It becomes. As a result, the person passing through the entrance / exit 21 can be sterilized efficiently in a short time, and the spread of contamination to the inside and outside of the toilet unit 11 can be suppressed. In the present embodiment, the air forming the air curtain 61 is generated by high-pressure air, and the air blowing speed at the swirling flow generation nozzle 65 is 100 to 500 m / sec. It is set to about 10 times the facility equipment.

  Further, in the toilet unit 11, a swirling flow 59 is created along the inner peripheral surface 69 of the nozzle body 63, in one direction of rotation and inclined downward. The plurality of swirl flow generation nozzles 65 are located on the downstream side of the swirl flow 59 with respect to the rotation direction side of the base position. The swirling flow 59 spirals around the axis and flows downward. On the other hand, the air blown out from each swirl flow generation nozzle 65 decelerates and diffuses as the distance from the swirl flow generation nozzle 65 increases. The flow of air swirling in the circumferential direction is also decelerated as it proceeds in the circumferential direction.

  Therefore, the plurality of swirl flow generating nozzles 65 are located downstream of the swirl flow 59 and are located on the lower side along the axis, so that the decelerated swirl flow 59 can be urged again to the original swirl speed. . Thereby, the swirl flow 59 is easily rectified into a regular spiral shape, and the disturbance of the swirl flow 59 is suppressed. Since the swirling flow 59 is arranged in a spiral shape, generation of turbulent flow and vortex is suppressed, and loss of airflow energy is reduced. As a result, the reachable distance of the air curtain 61 can be increased.

  In the toilet unit 11, when a person enters the airtight chamber 13 through the opened doorway 21, the entrance is detected by the doorway internal sensor 55 provided inside the doorway 21. This detection signal becomes a trigger signal, the door 23 is closed, and the driving of the air curtain generator 17 and the plasma generator 19 is stopped. As a result, after the person enters the room, the door 23 is closed in a non-contact manner, the airtight chamber 13 is shielded from the outside, and the expansion of contamination can be suppressed, and the air curtain generator 17 and the plasma generator 19 are stopped to waste. Running costs can be reduced.

  In the toilet unit system according to the present embodiment, the user of the toilet enters the airtight chamber 13 without entering the door 23, the door knob, the switch, or the like without touching the finger, entering the toilet booth 15, Opening / closing and locking / unlocking of the booth door 35, running water of the toilet 43, use of soapy water and water, drying of fingers, leaving the toilet booth 15 and leaving the airtight chamber 13 can be made possible. When the entrance / exit 21 of the hermetic chamber 13 is opened, an air curtain 61 is created at the entrance / exit 21 by an airflow mixed with plasma. As a result, when the user enters the airtight chamber 13 and leaves the airtight chamber 13, the activity of bacteria and viruses attached to the clothes can be lost or killed, and can be blown away by the swirling flow. It becomes. In addition, after the door 23 is closed, the plasma floats in the airtight chamber 13 and the toilet booth 15 which are sealed spaces for a certain period of time, and the activity of bacteria and viruses is lost or killed.

Next, a modified example of the toilet unit 11 having the above configuration will be described.
FIG. 10 is a plan view of a toilet unit 75 according to Modification 1 in which a plurality of toilet booths 15 are provided. In the following modifications, the same members as those shown in FIGS. 1 to 5 are denoted by the same reference numerals, and redundant description is omitted.
In the toilet unit 75 according to Modification 1, a plurality of toilet booths 15 are installed in the airtight chamber 13. In this case, a plurality of in-room lamps and in-use lamps are installed on the outdoor surface of the wall body 57. Further, in the case of this toilet unit 75, when leaving the room, when there is a user in another toilet booth 15, an operation that does not turn off the illumination is added.

FIG. 11 is a plan view of a toilet unit 79 according to Modification 2 in which the opening / closing body is a sliding door 77.
In the toilet unit 79 according to Modification 2, the opening / closing body is a sliding door 77. According to the toilet unit 79 using the opening / closing body as the sliding door 77, the moving space of the opening / closing body, that is, the movement locus is reduced, and the unit can be made compact.

FIG. 12 is a plan view of a toilet unit 81 according to Modification 3 in which the toilet booth 15 is omitted.
The toilet unit 81 according to the modification 3 has no wall or booth door constituting the booth, and the toilet 43 is directly installed inside the airtight chamber 13. According to the toilet unit 81, the installation area can be made compact.

Moreover, although illustration is abbreviate | omitted, the toilet unit of this invention may provide the suction opening in the floor surface of the entrance / exit 21, may attract | suck the airflow which makes the air curtain 61, and may also make it circulate. In this case, if a biofilter or the like is provided in an air circulation duct or the like, the bactericidal action can be further improved.
Moreover, it is preferable to provide the toilet unit 11 with devices such as an external notification in emergency and door opening. For example, a time for staying in the toilet booth is set, and if the time is exceeded, it is determined that an abnormality or an emergency has occurred.

  Therefore, according to the toilet unit 11 and the toilet unit system according to the present embodiment, the user can enter from the room to the room without touching the toilet unit at the time of use of the toilet unit. The spread of contamination can be suppressed.

DESCRIPTION OF SYMBOLS 11 ... Toilet unit 13 ... Airtight room 15 ... Toilet booth 17 ... Air curtain generator 19 ... Plasma generator 21 ... Entrance / exit 23 ... Opening / closing body (door)
35 ... Booth opening / closing body (booth door)
43 ... Toilet 51 ... Entrance floor 53 ... Matte sensor 55 ... Internal sensor (entrance / exit internal sensor)
61 ... Air curtain 63 ... Nozzle body 65 ... Swirl flow generating nozzle 67 ... Swirl flow generating outlet 69 ... Inner peripheral surface

Claims (2)

An airtight chamber having an entrance and exit;
A toilet booth installed in the airtight room;
An opening and closing body for opening and closing the doorway;
An entrance opening and closing device that opens the opening and closing body by stepping on a mat sensor installed on the entrance floor of the entrance and exit;
An air curtain generating device that operates in conjunction with opening of the opening and closing body by the doorway opening and closing device and creates an air curtain by an airflow directed downward from the upper part of the doorway;
A plasma generator for mixing plasma in the airflow;
With comprising a,
The air curtain generating device is provided with a plurality of swirling flow generating outlets arranged along the entrance direction of the entrance and exit,
The swirl flow generating outlet is
A plasma discharge port through which the plasma is supplied by having the axis line in the vertical direction and the lower part being a supply opening;
Opening at equal intervals in the circumferential direction on the inner circumferential surface of the nozzle body located around the plasma discharge port, and blowing out the air stream in a downward direction toward one direction of rotation about the axis. A plurality of swirl flow generating nozzles;
A toilet unit comprising: The toilet unit according to claim 1,
The swirl flow generating nozzle is
A toilet unit characterized in that one in the circumferential direction is used as a base point position, and downstream ones in the turning direction from the base point position are sequentially arranged at positions that are downward along the axis .

Images