JP2022140154A - Body adhering object purification system - Google Patents

Abstract

To provide a body adhering object purification system which can properly purify an adhering object adhering to a body while preventing a special liquid or gas etc. from contacting with the body directly and makes a gas containing harmful substances less likely to be exhausted.SOLUTION: In a body adhering object purification system, a removal part 2 removes adhering objects from a body with an airflow. A purification part 3 purifies the adhering objects removed from the body by the removal part 2. A gas guide passage 4 guides a gas from a lower part of the removal part 2 to the purification part 3. The removal part 2 includes an air shower chamber 10 and an air supply part 11. The air supply part 11 takes air from the outside of the system and generates an airflow flowing from the upper side to the lower side of the air shower chamber 10. The purification part 3 includes: a sterilization part 30; a filter 42; and an exhaust part 40. The sterilization part 30 makes a purifying liquid 5 having sterilization effect into mist in a gas passage 20 to sterilize particles in the gas. The filter 42 is provided within the gas passage 20 and collects the particles in the gas.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present disclosure relates to a body deposit cleaning device that removes and cleanses deposits attached to the body.

Various particles (viruses, bacteria, substances, etc.) are known that adhere to the human body (eg, clothes, skin, hair, etc.) and cause harm to humans. For example, it has been reported that the new coronavirus, which has been spreading around the world in recent years, can survive on clothing for at least several hours. If the new coronavirus attached to clothes is left untouched, the risk of being infected with the virus increases. It goes without saying that the air contains many viruses and bacteria other than the new coronavirus that can cause harm to humans.

There is also a report that airborne microplastics (AMPs: Airbone microplastics) have a serious impact on human health. When microplastics are taken into the human body through eating or drinking, they are expelled from the body, but microplastics that enter the lungs through breathing accumulate in the lungs, potentially causing serious symptoms in humans. be. In addition, air also contains many particles (eg, pollen, dust, yellow sand, etc.) that can cause allergic reactions.

Various techniques have been proposed in order to suppress the influence of deposits attached to the body on humans. For example, the air shower device described in Patent Document 1 aims at sterilization and deodorization by atomizing sanitary water containing a compound having sterilization or deodorant properties and directly spraying it onto a person. The air shower room described in Patent Document 2 sends sterilization gas having a sterilization function into the interior while a person is inside. The protective clothing sterilizer described in Patent Document 3 blows air while irradiating a person in a small room with ultraviolet rays, and exhausts the air in the small room through a filter.

JP 2011-80745 A JP 2012-137264 A Utility Model Registration No. 3230337

In the devices described in Patent Documents 1 and 2, it is necessary to spray sanitary water or sterilizing gas directly on people. In this case, depending on the type of sanitary water or sterilizing gas used, the sanitary water or sterilizing gas itself may harm human health. Therefore, it is necessary to use sanitary water or sterilizing gas that has little effect on human health and has a sterilizing function. Even if an appropriate sanitary water or sterilizing gas is used, a person who is sprayed with sanitary water or sterilizing gas often feels uncomfortable.

Also, the apparatus described in Patent Document 3 also needs to irradiate a person with ultraviolet rays, so there is a possibility that the skin or the like will be affected. Furthermore, there are many substances that are difficult to detoxify only with ultraviolet rays and filters. Substances that cannot be detoxified are exhausted as they are, contaminating the surrounding environment of the installation position of the apparatus. As described above, a device that can properly purify deposits adhering to the body without direct contact with special liquids, gases, etc., and that does not easily exhaust gases containing harmful substances, It was difficult to realize with the conventional technology.

A typical object of the present disclosure is to appropriately purify deposits adhering to the body without direct contact with special liquids, gases, etc., and to exhaust gases containing harmful substances. Another object of the present invention is to provide an apparatus for purifying body deposits which is difficult to remove.

A body deposit cleaning device provided by a typical embodiment of the present disclosure is a body deposit cleaning device that removes and cleanses deposits attached to the body, and generates an airflow around the body to a removal unit that removes deposits from the body with the airflow; a purification unit that cleans the deposits removed from the body by the removal unit; an air shower room that surrounds the body; and a gas guide path that guides air from the outside of the body purification device to the purification unit. an air supply section that takes air into the air shower chamber and generates an air flow downward from above the air shower chamber, wherein the gas guide path guides gas from the lower part of the air shower chamber in the removal section to the purification section. and the purifying unit includes a gas flow path through which the gas guided from the removing unit by the gas guide path passes; A sterilization unit that sterilizes particles in the gas by bringing the gas passing through the passage into contact with the purification liquid, and a filter that is provided in the gas flow path and collects particles in the gas. and an exhaust part for exhausting the gas in the gas flow path to the outside of the body deposit cleaning device through the exhaust port.

According to the apparatus for purifying body deposits according to the present disclosure, it is possible to appropriately purify deposits attached to the body without direct contact with the body with special liquids, gases, etc., and to remove the gas containing harmful substances. is difficult to exhaust.

1 is a front view showing the external appearance and internal configuration of the body attachment cleaning device 1. FIG. 1 is a plan view showing the external appearance and internal configuration of the body attachment cleaning device 1. FIG. 1 is a left side view showing the external appearance and internal configuration of the body attachment cleaning device 1. FIG. 2 is a right side view showing the external appearance and internal configuration of the body deposit cleaning device 1. FIG. 2 is a block diagram showing an electrical configuration of the body attachment cleaning device 1. FIG. 4 is a flowchart of operation control processing executed by the body deposit cleaning device 1. FIG. FIG. 11 is a perspective view of a body attachment cleaning device 100 of a modified example.

<Overview>
The body deposit cleaning device exemplified in the present disclosure removes and cleanses the body deposits. A body deposit cleaning device includes a removal section, a cleaning section, and a gas guideway. The removal unit generates an airflow around the body and removes the adhering matter from the body with the airflow. The cleaning section cleanses the deposits removed from the body by the removing section. The gas guide path guides gas that has passed around the body in the removal section from the removal section to the purification section. The removal unit includes an air shower chamber and an air supply unit. The air shower room covers the circumference of the user's body (the entire circumference of the body may be covered, or part of the circumference of the body may be left open). The air supply part is provided in the upper part of the air shower room, takes in air from the outside of the body cleaning apparatus to the inside, and generates an air flow from the upper part of the air shower room to the lower part. The gas guide path guides gas from the lower part of the air shower chamber in the removal section to the purification section. The purification section comprises a gas flow path, a disinfection section, a filter, and an exhaust section. The gas flow path is a flow path through which the gas guided from the removal section by the gas guide path passes. The sterilization/disinfection unit turns a purification liquid having a sterilization/disinfection effect into a mist in the gas flow path, and brings the gas passing through the gas flow path into contact with the mist-ized purification liquid to remove particles in the gas. Sterilize and disinfect. A filter is provided in the gas flow path and collects particles in the gas. The exhaust part exhausts the gas in the gas flow path to the outside of the device through the exhaust port.

According to the body deposit cleaning device exemplified in the present disclosure, first, deposits attached to the body are removed by the flow of air taken in from the outside. Therefore, it is safer and less likely to make the user feel uncomfortable than when the body is directly touched with a special liquid, gas, or the like. Also, in the air shower room, an air current is generated from above to below. Therefore, particles removed from the body by the airflow enter the user's mouth and body from the mouth and nose, etc., compared to when airflow from the bottom to the top or the airflow in the lateral direction is used. less likely. Furthermore, the gas guided from the lower part of the air shower room to the purification section is subjected to both sterilization and disinfection by the misted purification liquid and particle collection by the filter. In other words, the apparatus for purifying body deposits of the present disclosure performs both sterilization and disinfection of viruses and the like and collection of particles such as microplastics that are ineffective for sterilization and disinfection. Therefore, the gas containing the deposits removed from the body is properly detoxified by sterilization and particle collection, and is exhausted to the outside of the apparatus by the exhaust section. As described above, according to the apparatus for purifying body deposits of the present disclosure, it is possible to appropriately purify deposits attached to the body without directly contacting the body with a special liquid, gas, etc., and to remove harmful substances. It is difficult to exhaust gases containing substances.

The filter may be provided downstream of the gas-liquid contact area where the cleaning liquid and the gas are brought into gas-liquid contact in the gas flow path (for example, an exhaust port through which the gas is discharged from the apparatus). In this case, the gas passing through the gas flow path passes through the filter after being sterilized by the sterilization section. As a result, viruses and the like removed from the body pass through the sterilization section before adhering to the filter. Therefore, it becomes difficult for viruses and the like to adhere to the filter, and work such as replacement of the filter can be performed safely.

The purifying part is located downstream of the gas-liquid contact area (that is, on the exhaust port side) in which the misted purifying liquid and the gas are brought into gas-liquid contact with each other. A gas-liquid separation unit that separates the liquid may be provided. In this case, the exhaust of the gas to the outside of the device while containing the misted purification liquid is appropriately suppressed. For example, even hypochlorous acid water, which is a highly safe purification liquid, is not recommended to be handled in such a way that aerosolized hypochlorous acid water is inhaled by humans. Therefore, the gas-liquid separator prevents the gas containing the cleaning liquid from being discharged, thereby further improving the safety and convenience of the apparatus.

Note that the filter may be provided further downstream than the gas-liquid separator in the gas flow path. That is, the gas-liquid separator may be provided between the gas-liquid contact region and the filter in the gas channel. In this case, the possibility that the misted purification liquid adheres to the filter is reduced. Therefore, clogging of the filter due to the cleaning liquid can be suppressed appropriately.

The disinfection station may comprise a mist nozzle, a reservoir, and a pump. The mist nozzle is provided at a position higher than the gas-liquid contact area, and emits the cleaning liquid as a mist. The reservoir is provided at a position lower than the gas-liquid contact area. The purification liquid that has been turned into a mist by the mist nozzle flows into and is stored in the reservoir. The pump pumps up the cleaning liquid stored in the storage section to the mist nozzle. In this case, the sterilization section can sterilize particles in the gas while circulating the purification liquid inside. Therefore, the consumption of cleaning liquid is greatly reduced.

Note that the gas-liquid separation section described above may be provided above (for example, vertically above) the purification liquid storage section. In this case, the purification liquid separated by the gas-liquid separator flows into the reservoir. Therefore, the cleaning liquid is utilized more efficiently.

The sterilization section may comprise a backflow prevention section. The backflow prevention portion extends obliquely downward from the wall surface on the gas guide path side of the inner wall forming the gas-liquid contact area toward the reservoir side, and covers the upper side of the open end of the gas guide path on the purification unit side. In this case, the purifying liquid that has fallen on the backflow prevention section after being turned into a mist flows along the backflow prevention section into the storage section without entering the open end of the gas guide path. Therefore, the purification liquid is appropriately suppressed from flowing to the removal section through the gas guide path.

The cleaning liquid may be hypochlorous acid water. Hypochlorous acid water is recognized by the Ministry of Health, Labor and Welfare as a purification liquid that has a strong sterilizing effect and is highly safe for humans. In addition, since hypochlorous acid water is decomposed into water when it comes into contact with organic matter, it is highly safe for the environment and easy to handle. Therefore, by using hypochlorous acid water as the cleaning liquid, the deposits can be cleaned more appropriately, easily, and safely.

However, it is also possible to adopt a purifying liquid different from the hypochlorous acid water. For example, silver ion water may be employed as the purifying liquid. In addition, liquids other than hypochlorous acid water and silver ion water can be suitably used as purification liquids as long as they have a sterilizing effect and are highly safe for humans and the environment.

An opening/closing part that can be opened and closed by an operator from the outside of the purification part may be provided on the wall part that constitutes the side part of the purification part. The mist nozzle and the storage section may be opened to the outside by opening the opening and closing section. In this case, by opening the opening/closing portion, the operator can easily perform various tasks such as replenishment of the cleaning liquid to the storage portion and maintenance of the mist nozzle. In addition, by closing the opening/closing portion, it is possible to prevent leakage of the misted purifying liquid or the like to the outside. Therefore, the apparatus for cleaning body deposits is operated more appropriately.

The body deposit cleaning device may further include a dust box and a lid. A dust box is provided adjacent to the air shower room. The cover is provided on a wall that separates the air shower room and the dust box, and is opened and closed by the user from inside the air shower room to open and close the space between the air shower room and the dust box. In this case, the user can put potentially contaminated clothes into the dust box from the air shower chamber. Therefore, while the user is changing clothes that may be contaminated, the removal unit removes the adhering substances. Therefore, the user's time efficiency is also improved.

Note that the specific configuration of the lid portion can be selected as appropriate. For example, the lid may be a semi-automatic door that opens the dust box when pushed by the user from inside the air shower room and closes the dust box when the pushing is released. In this case, the user can easily put the contaminants into the dust box simply by pushing the lid. In addition, since the dust box is semi-automatically closed without the user closing the lid, the movement of harmful particles from the dust box into the air shower chamber is appropriately suppressed.

The body deposit cleaning device may include a lighting device in the upper part of the air shower room. The lighting device may have an ion generating function for generating positive ions of hydrogen and negative ions of oxygen by plasma discharge. It is known that generating positive ions of hydrogen and negative ions of oxygen by plasma discharge is effective in antivirus, disinfection, deodorization, and the like. Moreover, these ions generated by the plasma discharge have a very low impact on human health, unlike the sterilizing gas used in conventional sterilizers and the like. Therefore, by using the lighting device equipped with the ion generating function, the deposits adhering to the body can be cleaned more appropriately.

A door portion may be provided in the removing portion. The door is openable and closable on the wall forming the side of the air shower room so that the user can enter and exit the air shower room. In this case, the degree of airtightness in the air shower chamber is higher than in the case where the door portion is not provided and the air shower chamber is always partially open. As a result, the gas taken in from the outside by the air supply section can easily flow properly from the upper part of the air shower chamber to the lower gas guide path. In addition, the possibility of particles removed from the body by the airflow leaking to the outside through the user's doorway is also reduced, compared to the case where the door is not provided. Therefore, deposits attached to the body are cleaned more appropriately.

In addition, when providing a door part, the installation method and installation number of a door part can be selected suitably. For example, the removal unit may be provided with an entrance door that opens and closes when the user enters the air shower room, and an exit door that opens and closes when the user leaves the air shower room. Further, the door portion opened and closed when the user enters the air shower room and the door portion opened and closed when the user exits the air shower room may be the same door portion. Further, the door portion may be, for example, a rotating door that rotates around a rotating shaft that extends in the vertical direction, or a sliding door that slides in the horizontal direction. The door may be opened and closed manually by an operator, or may be opened and closed automatically.

However, it is also possible to omit the door portion. That is, at least one of the entrance and the exit (the entrance and the exit may be common) for the user to enter and exit the air shower room may be always open, or may be simply opened and closed by a curtain or the like. . Even in these cases, the apparatus for cleaning body deposits can appropriately remove the deposits attached to the body by generating an air flow from above to below the air shower room.

The filters may be HEPA filters or ULPA filters. A HEPA filter (High Efficiency Particulate Air Filter) has a particle collection rate of 99.97% or more for particles with a particle size of 0.3 μm at a rated air flow, and an initial pressure loss of 245 Pa or less. It is an air filter with performance. ULPA filter (Ultra Low Penetration Air Filter) has a particle collection rate of 99.9995% or more for particles with a particle size of 0.15 μm at a rated air flow, and an initial pressure loss of 245 Pa or less. It is an air filter with performance. By using a HEPA or ULPA filter as a filter, even very fine particles are collected with high precision, further reducing the possibility of exhausting gases containing harmful substances.

The control unit of the apparatus for cleaning body deposits may perform an operating process and a standby process. In the in-operation process, the control unit drives the air supply unit with an operation output for removing deposits adhering to the body of the user in the air shower room. In the standby process, the control unit drives the air supply unit with a standby output lower than the operating output while the in-operation process is not performed. In this case, even during standby, an air flow is generated from the top to the bottom in the air shower chamber at a low output, so the possibility of leakage of harmful particles to the outside of the apparatus during standby is reduced. Also, during operation, deposits are appropriately removed with high output. Therefore, the drive of the device is controlled more appropriately.

However, it is also possible to change the contents of the waiting process. For example, the control unit may completely stop driving the air supply unit during the standby process. Also, the control unit may execute the standby process in a plurality of stages. For example, the control unit drives the air supply unit with a standby output that is lower than the operating output for a predetermined time after the end of the operating process, and completely stops driving the air supply unit after the predetermined time has elapsed. may Further, the control unit may gradually decrease the output of the air supply unit each time the time elapses after the end of the in-operation process. In these cases, prevention of leakage of harmful particles during standby and reduction of power consumption are appropriately balanced. Moreover, when the frequency of use of the apparatus is high, the control unit may always execute the in-operation process.

The apparatus for removing body deposits may further include a detection unit that detects that the user has entered the air shower chamber. The controller may automatically switch the standby process to the active process when the detector detects that the user has entered the air shower chamber during the standby process. In this case, when the user enters the air shower chamber, the in-operation process is automatically started without any operation by the user or the administrator of the apparatus. Therefore, deposits adhering to the body are cleaned more appropriately.

It should be noted that the trigger for switching the processing in operation to the processing in standby can also be selected as appropriate. For example, the control unit may switch the operating process to the waiting process after executing the operating process for the set operating time regardless of whether or not the user remains in the air shower room. In this case, the operating time may be appropriately adjusted by the administrator of the device or the like. Further, the control unit may switch the operating process to the waiting process when it is detected that the user has disappeared from the air shower room.

Also, the configuration of the detection unit can be selected as appropriate. For example, when a door section is provided for the user to enter and exit the air shower room, a sensor that detects that the door section has changed from an open state to a closed state may be employed as the detection section. Also, an infrared sensor or the like that detects whether or not the user is in the air shower room may be employed as the detection unit.

<Embodiment>
One typical embodiment of the present disclosure will be described below with reference to the drawings. First, with reference to FIGS. 1 to 4, the mechanical configuration of the body attachment cleaning device 1 according to the present embodiment will be described. 1 to 4 schematically show part of the internal configuration in addition to the external appearance of the body deposit cleaning device 1. FIG. FIG. 1 is a front view of the body deposits cleaning device 1, FIG. 2 is a plan view of the body deposits cleaning device 1, FIG. 3 is a left side view of the body deposits cleaning device 1, and FIG. is a right side view of the. The arrows shown in FIGS. 1 to 4 indicate directions in which gases (mainly air) flow.

(overall structure)
As shown in FIG. 1, the apparatus for cleaning body deposits 1 includes a removing section 2, a cleaning section 3, and a gas guide path 4 (the shaded portion at the bottom in FIG. 1). The removal unit 2 generates an airflow around the body of the user (that is, the target person from whom the adhering matter is to be removed), thereby removing the adhering matter from the body by the airflow. In this embodiment, the adherents (particles, etc.) removed from the body by the airflow include various substances such as viruses, bacteria, microplastics, pollen, dust, and yellow sand. The cleaning unit 3 cleans the deposits removed from the user's body by the removing unit 2 . The gas guide path 4 guides the gas that has passed around the body in the removal section 2 from the removal section 2 to the purification section 3 .

(removal part)
The removal unit 2 will be described in detail. The removal section 2 includes an air shower room 10 , an air supply section 11 , a lighting device 12 , a door section 13 (an entrance door 13 A and an exit door 13 B), a detection section 14 , a dust box 15 and a lid section 16 .

As shown in FIG. 1, the air shower room 10 covers the user's body. The air shower room 10 of the present embodiment can be operated in all directions around the user's body (that is, upward, downward, and laterally in all directions). However, part of the surroundings of the user may be open.

The air supply unit 11 (see FIGS. 1 to 3) is provided in the upper part of the air shower room 10 (the ceiling part in this embodiment). The air supply unit 11 takes in air from the outside of the apparatus for cleaning body deposits 1 to the inside, and generates an air current from the top to the bottom inside the air shower room 10 . Further, as shown in FIG. 1, of the pair of open ends 4A and 4B of the gas guide path 4, the open end 4A on the removal section 2 side is positioned below the air shower chamber 10. As shown in FIG. That is, the gas guide path 4 guides the gas from the lower part of the air shower chamber 10 in the removal section 2 to the purification section 3 . As a result, the gas taken into the air shower chamber 10 by the air supply unit 11 moves downward in the air shower chamber 10 while removing deposits from the user's body, and passes through the open end 4A. Guided to taxiway 4. Therefore, particles removed from the body by the airflow enter the user's mouth and body from the mouth and nose, etc., compared to when airflow from the bottom to the top or the airflow in the lateral direction is used. less likely. In addition, since it is the air that comes into direct contact with the body, it is safer and less likely to make the user feel uncomfortable than when a special liquid or gas is brought into direct contact with the body.

As shown in FIG. 2 , in this embodiment, four air supply fans provided on the ceiling of the air shower room 10 are used as the air supply unit 11 . However, it is also possible to change the configuration of the air supply unit 11 . For example, the air supply unit 11 may take in air laterally or obliquely from the upper side of the air shower room 10 and then send the taken air downward into the air shower room 10 .

A lighting device 12 (see FIGS. 1 and 3) is provided above the air shower room 10 (more specifically, inside the ceiling of the air shower room 10) and illuminates the inside of the air shower room 10. FIG. The illumination device 12 of this embodiment includes a human sensor (an infrared sensor in this embodiment). The lighting device 12 turns on the lighting when a person is detected in the air shower room 10, and turns off the lighting when a predetermined time (for example, 30 seconds) elapses after the person is no longer detected.

The lighting device 12 of the present embodiment has an ion generating function of generating positive ions of hydrogen and negative ions of oxygen by plasma discharge. Positive ions of hydrogen and negative ions of oxygen generated by the plasma discharge exhibit antiviral, sterilizing, and deodorizing effects. Moreover, these ions generated by the plasma discharge have a very low impact on human health, unlike the sterilizing gas used in conventional sterilizers and the like. Therefore, deposits attached to the body are cleaned more appropriately.

A door portion 13 (see FIGS. 1 to 3) is provided on a wall portion forming a side portion of the air shower room 10 so that the user can enter and exit the air shower room 10 so that the door portion 13 can be opened and closed. Therefore, compared to the case where the door portion 13 is not provided and a part of the air shower room 10 (the entrance/exit) is always open, the degree of airtightness in the air shower room 10 is increased. As a result, the gas taken in from the outside by the air supply part 11 can easily flow appropriately from the upper part of the air shower room 10 to the lower gas guide path 4 . In addition, compared to the case where the door portion 13 is not provided, the possibility of particles removed from the body by the airflow leaking to the outside through the user's entrance is reduced.

As shown in FIGS. 2 and 3, the removal unit 2 of the present embodiment includes an entrance door 13A that is opened and closed when the user enters the air shower room 10, and an entrance door 13A that allows the user to enter the air shower room 10. An exit door 13B that is opened and closed when exiting is provided. Both the entrance door 13A and the exit door 13B are rotating doors that are manually rotated around a rotating shaft extending in the vertical direction. However, when the body attachment purification apparatus 1 is provided with the door portions 13, the number and structure of the door portions 13 can be appropriately selected. For example, one door may be used both for the entrance and for the exit. The door portion may be a sliding door. The door may be opened and closed automatically.

A detection unit 14 (see FIG. 1) detects that a user has entered the air shower room 10 . As an example, the detection unit 14 of the present embodiment detects that the door unit 13 (more specifically, the entrance door 13A) is changed from the open state to the closed state. It is a sensor that detects entry. However, when a detection unit is mounted on the body attachment cleaning device 1, an infrared sensor or the like may be used as the detection unit.

A dust box 15 (see FIGS. 1 to 3) is installed adjacent to the air shower room 10. As shown in FIG. In this embodiment, the dust box 15 is provided so as to be in contact with the left side of the air shower room 10 . Further, the wall of the dust box 15 of this embodiment (the left wall in this embodiment) is provided with a contaminant for taking out objects put into the dust box 15 by the user from the outside of the apparatus 1 for cleaning body deposits 1 . An article take-out door 17 (see FIGS. 1 to 3) is provided.

The lid portion 16 (see FIG. 1) is provided on a wall portion that separates the air shower chamber 10 and the dust box 15 (in the present embodiment, the left wall portion of the six walls constituting the air shower chamber 10). ing. The cover 16 opens and closes between the air shower room 10 and the dust box 15 by being opened and closed by the user from inside the air shower room 10 . By opening the lid portion 16, the user removes clothes, etc. that may be contaminated with harmful particles (attached matter) (hereinafter referred to as "contaminants") from inside the air shower chamber 10 into the dust box 15. can be put in a bag. Therefore, the remover 2 removes the deposits while the user is changing clothes that may be contaminated.

Note that the lid portion 16 of the present embodiment opens the dust box 15 by being pushed by the user from the inside of the air shower chamber 10 toward the dust box 15 side. In addition, the dust box 15 is closed by releasing the push-in of the lid portion 16 by the user. That is, the lid part 16 of this embodiment is a semi-automatic door. Therefore, the user can easily put the contaminants into the dust box 15 by simply pushing the cover 16 . Moreover, since the dust box 15 is semi-automatically closed without the user closing the lid 16, the movement of harmful particles from the dust box 15 into the air shower chamber 10 is appropriately suppressed.

(Purification Department)
The purification unit 3 will be explained in detail. The purification section 3 includes a gas flow path 20 , a sterilization/disinfection section 30 , an exhaust section 40 , an exhaust port 41 and a filter 42 .

The gas flow path 20 (see FIGS. 1 and 4) allows the gas guided from the removal section 2 to the inside of the purification section 3 by the gas guide path 4 to pass through to the exhaust port 41 . The gas flow path 20 is formed by various members constituting the purifier 3 (for example, a wall portion of the housing of the purifier 3, etc.). As shown in FIG. 1, the gas flow path 20 in the present embodiment extends upward from an open end 4B of the gas guide path 4 on the purification section 3 side while bypassing a backflow prevention section 36 (details of which will be described later). The gas flow path 20 further extends upward and passes through a gas-liquid contact area 35 and a gas-liquid separator 37 (details of which will be described later). Then, the gas flow path 20 reaches the exhaust port 41 through the exhaust portion 40 and the filter 42 .

The sterilization/disinfection section 30 (see FIGS. 1 and 4) mistifies the purification liquid 5 (see FIG. 1) having a sterilization/disinfection effect in the gas flow path 20, and the gas and the purification liquid passing through the gas flow path 20 are misted. By bringing 5 into gas-liquid contact, particles in the gas are sterilized.

In the following description, a gas-liquid contact region 35 is defined as a region in which the misted purification liquid 5 and the gas flowing through the gas flow path 20 are brought into contact with each other. The gas-liquid contact area 35 is formed in a portion of the gas flow path 20 where the gas moves upward. Therefore, compared with the case where the gas-liquid contact area 35 is formed in a portion where the gas moves in the lateral direction or the like, the gas is more likely to come into contact with the misted purification liquid 5 . A detailed description of the sterilization/disinfection section 30 will be given later.

In this embodiment, hypochlorous acid water is used as the purification liquid 5 . Hypochlorous acid water has a strong sterilizing and disinfecting effect and is highly safe for humans. In addition, since hypochlorous acid water is decomposed into water when it comes into contact with organic matter, it is highly safe for the environment and easy to handle. Therefore, by using the hypochlorous acid water as the purification liquid 5, the deposits can be purified more appropriately, easily, and safely. However, as described above, other than hypochlorous acid water, it is possible to use a liquid (for example, silver ion water) that has a sterilizing effect and is highly safe for humans and the environment as the purification liquid 5. can.

The exhaust part (exhaust fan in this embodiment) 40 exhausts the gas in the gas flow path 20 to the outside of the body deposit cleaning apparatus through the exhaust port 41 . Therefore, after the gas is taken into the device from the upper part of the air shower chamber 10 by the air supply unit 11, the gas moves downward through the air shower chamber 10 and is guided to the purification unit 3 by the gas guide path 4. is exhausted from the exhaust port 41 through the gas flow path 20 . Therefore, the gas is guided more smoothly than when the gas is guided inside the apparatus only by the air supply unit 11 . Since the interior of the device is under negative pressure, there is also a reduced possibility that deposits that have been removed from the body will leak through crevices and the like before being purified.

The exhaust port 41 is provided in the upper part of the purification section 3 . Specifically, as shown in FIG. 1, the exhaust port 41 is provided at a position higher than the average height of a person. Therefore, the possibility that the exhaust from the exhaust port 41 directly hits a person near the body deposit cleaning device 1 is reduced. In this embodiment, the exhaust port 41 is provided at a position facing the front of the device. However, it is also possible to change the direction in which the exhaust port 41 faces.

The filter 42 is provided in the gas flow path 20 and collects particles in the gas passing through the gas flow path 20 . As a result, the gas that has passed through the user's body is exhausted from the exhaust port 41 to the outside of the apparatus with particles removed as much as possible by the filter 42 .

A HEPA filter is employed for the filter 42 of this embodiment. A HEPA filter (High Efficiency Particulate Air Filter) has a particle collection rate of 99.97% or more for particles with a particle size of 0.3 μm at a rated air flow, and an initial pressure loss of 245 Pa or less. It is an air filter with performance. By using a HEPA filter as the filter 42, even very fine particles can be collected with high accuracy. Therefore, the possibility of exhausting gas containing harmful substances is further reduced. In addition, when a ULPA filter is adopted as the filter 42, fine particles are collected with higher precision. However, filters other than HEPA filters and ULPA filters may be employed. Even in this case, the combined use of the filter 42 and the sterilization/disinfection section 30 allows the gas containing the deposits removed from the body to be properly detoxified by the sterilization/disinfection and the collection of the particles, and then the outside of the apparatus. exhausted to The details of the installation position of the filter 42 will be described later.

The sterilization/disinfection section 30 will be described in detail. As shown in FIGS. 1 and 4, the sterilization section 30 of the present embodiment includes a mist nozzle 31, a pipe 32, a storage section 33, a pump 34, a backflow prevention section 36 (see FIG. 1), a gas-liquid separation section 37, and an opening/closing part 38 .

The mist nozzle 31 turns the cleaning liquid 5 into a mist and emits it. Since the mist nozzle 31 is provided at a position higher than the gas-liquid contact area 35, the purification liquid 5 misted by the mist nozzle 31 passes through the gas-liquid contact area 35 from above to below. The pipe 32 supplies the cleaning liquid 5 from the reservoir 33 to the mist nozzle 31 . The reservoir 33 is provided at a position lower than the gas-liquid contact area 35 (under the gas-liquid contact area 35 in this embodiment).

Purifying liquid 5 once misted by mist nozzle 31 drops or flows into reservoir 33 , so that purifying liquid 5 is stored. The pump 34 pumps up the purification liquid 5 stored in the storage portion 33 to the mist nozzle 31 through the pipe 32 . As a result, the cleaning liquid 5 is discharged from the mist nozzle 31 . With the above configuration, the sterilization section 30 of the present embodiment sterilizes particles in the gas while circulating the purification liquid 5 inside the purification section 3 . Therefore, the consumption of the cleaning liquid 5 is greatly reduced.

The backflow prevention portion 36 (see FIG. 1) is a wall surface on the side of the gas guide path 4 (in this embodiment, a wall) toward the reservoir 33 obliquely downward. The backflow prevention part 36 covers the upper side of the open end 4B of the gas guide path 4 on the purification part 3 side in a state where the gas flow path 20 is secured between the storage part 33 and the backflow prevention part 36 . In other words, the backflow prevention portion 36 serves as a partition between the gas-liquid contact area 35 and the open end 4B of the gas guide path 4 . Therefore, the purifying liquid 5 that has fallen onto the backflow preventing portion 36 after being turned into a mist does not enter the open end 4B of the gas guide path 4, but flows along the backflow preventing portion 36 into the storage portion 33. Therefore, the flow of the purifying liquid 5 to the removal section 2 through the gas guide path 4 is appropriately suppressed. As an example, the backflow prevention portion 36 of the present embodiment is a plate-like member, but the shape of the backflow prevention portion 36 is not limited to a plate shape.

The gas-liquid separator (eliminator) 37 is provided downstream of the gas-liquid contact area 35 in the gas channel 20 (that is, on the exhaust port 41 side). The gas-liquid separator 37 separates the liquid from the gas passing through the gas flow path 20 . Therefore, the gas-liquid separator 37 appropriately suppresses the gas from being exhausted to the outside of the device while containing the purification liquid 5 that has become mist. Even when hypochlorous acid water, which is highly safe, is used as the purification liquid 5, it is not recommended to treat the atomized hypochlorous acid water in such a way that people may inhale it. Therefore, the gas-liquid separator 37 prevents the gas containing the purification liquid 5 from being discharged, thereby further improving the safety and convenience of the apparatus. Note that the gas-liquid separator 37 of the present embodiment increases the passage distance of the gas and secures a sufficient area of the portion that contacts the gas, so that the liquid in the gas adheres to the contact surface to separate the gas and the liquid. separate.

In the present embodiment, the gas-liquid separator 37 is provided above the reservoir 33 (vertically above in the present embodiment). Therefore, the purification liquid 5 separated from the gas by the gas-liquid separator 37 flows into the reservoir 33 located below. Therefore, the purification liquid 5 is used more efficiently.

Further, the filter 42 of this embodiment is provided downstream of the gas-liquid contact area 35 in the gas flow path 20 (exhaust port 41 in this embodiment). Therefore, the gas passing through the gas flow path 20 passes through the filter 42 after being sterilized by the sterilization section 30 . As a result, viruses and the like removed from the body pass through the sterilization section 30 before adhering to the filter 42 . Therefore, it becomes difficult for viruses and the like to adhere to the filter 42, so that work such as replacement of the filter 42 can be performed safely.

In addition, the filter 42 of the present embodiment is provided further downstream than the gas-liquid separator 37 in the gas flow path 20 . That is, the gas-liquid separator 37 is provided between the gas-liquid contact region 35 and the filter 42 in the gas channel 20 . Therefore, the possibility that the misted purification liquid 5 adheres to the filter 42 is reduced. Therefore, clogging of the filter 42 by the purification liquid 5 and the like can be appropriately suppressed.

The opening/closing part 38 is provided on a wall part (the right wall part in this embodiment) that constitutes the side part of the purification part 3 . The operator can open and close the opening/closing part 38 from the outside of the cleaning part 3 . When the opening/closing part 38 is opened, the mist nozzle 31, the pipe 32, the storage part 33 and the like are opened to the outside. Therefore, by opening the opening/closing part 38, the operator can easily perform various tasks such as refilling the reservoir 33 with the purification liquid 5 and maintenance of the mist nozzle 31, for example. . In addition, by closing the opening/closing portion 38, leakage of the purifying liquid 5 and the like in the form of mist to the outside is prevented.

(electrical configuration)
With reference to FIG. 5, the electrical configuration of the body deposit cleaning device 1 will be described. The body attachment cleaning device 1 includes a control unit 50 . A controller 51 and a storage unit 52 are provided in the control unit 50 . The controller 51 controls various controls in the apparatus for cleaning body deposits 1 . The storage unit 52 stores programs executed by the controller 51, various values, and the like. Further, the control unit 50 is connected to the air supply unit 11, the lighting device 12, the detection unit 14, the pump 34, and the exhaust unit 40 described above. The control unit 50 controls driving of the air supply unit 11 , the lighting device 12 , the pump 34 and the exhaust unit 40 .

(operation control processing)
The operation control process executed by the body deposit cleaning device 1 will be described with reference to FIG. 6 . When the body attachment purification apparatus 1 is powered on, the controller 51 of the control unit 50 executes the operation control process shown in FIG. 6 according to the program stored in the storage unit 52 . It should be noted that when the power of the apparatus for cleaning body deposits 1 is turned off, the operation control process ends.

First, the controller 51 starts driving the lighting device 12 (S1). As an example, the lighting device 12 of the present embodiment is equipped with a microcomputer, and the microcomputer turns on/off the lighting based on the detection result of the human sensor. Note that the ion generation function of the illumination device 12 is always executed while the power is on.

Next, the controller 51 starts driving the pump 34 (S2). As a result, the purification liquid 5 is misted in the gas-liquid contact area 35 of the purification section 3 . In this embodiment, the pump 34 is always driven while the power is on. However, the pump 34 may be driven in conjunction with the air supply unit 11 and the like.

Next, the controller 51 executes standby processing for operating the air supply unit 11 at a low speed (S3). The standby process is a process of driving the air supply unit 11 with a standby output that is lower than the operating output described later.

The controller 51 determines whether or not the detection unit 14 has detected that a user has entered the air shower room 10 during execution of the standby process (S4). If entry into the room is not detected (S4: NO), the process returns to S3 and the process during standby is continued.

When it is detected that the user has entered the air shower room 10 (S4: YES), the controller 51 automatically switches the standby process to the operating process (S5). The process during operation is a process of driving the air supply unit 11 with an operating output (output higher than the above-described standby output) for removing deposits adhering to the body of the user in the air shower room 10. . That is, in the in-operation process, the air supply unit 11 is operated at high speed.

The controller 51 determines whether or not the elapsed time after the start of the in-operation process has reached the set operating time (S6). If the elapsed time has not reached the operating time (S6: NO), the process returns to S5, and the operating process is repeated. When the elapsed time reaches the operating time (S6: YES), the process returns to S3, and the operating process is switched to the waiting process.

As described above, in the body attachment purification apparatus 1 of the present embodiment, the air supply unit 11 is operated at a low speed by the standby process even while the in-operation process is not being performed. Therefore, even during standby, the gas in the device is purified with low output. Therefore, the possibility of leakage of harmful particles to the outside of the device during standby is reduced. In addition, purification of the gas in the installation environment of the device is progressing. Further, in this embodiment, when the user enters the air shower room 10, the operating process is automatically started. Therefore, even if the user or the administrator of the apparatus or the like does not perform any operation, the deposits adhering to the body of the user are properly cleaned.

In the present embodiment, the controller 51 performs the same standby processing and operating processing for the exhaust unit 40 in conjunction with the standby processing and operating processing for the air supply unit 11 . Therefore, the gas purifying operation during standby and the gas purifying operation during operation can be appropriately switched.

The techniques disclosed in the above embodiments and modifications are merely examples. Therefore, it is also possible to modify the techniques exemplified in the above embodiments and modifications. Now, with reference to FIG. 7, a body attachment cleaning device 100 of a modified example of the above embodiment will be described. As shown in FIG. 7, the body attachment cleaning device 100 may include a plurality of (three in FIG. 7) removal units 2A, 2B, and 2C. Purification units 3A, 3B, and 3C may collectively purify gases guided through gas guide paths 4 from a plurality of removal units 2A, 2B, and 2C. In this case, the gas guide path 4 may lead to the purifiers 3A, 3B, 3C via, for example, under the floor of each of the removers 2A, 2B, 2C. Further, as shown in FIG. 7, by connecting at least one of the plurality of removing units 2A, 2B, 2C and the plurality of purifying units 3A, 3B, 3C, the user can remove the air in the removing units 2A, 2B, 2C. It is also possible to cleanse body deposits while walking through the shower stall. Further, as shown in FIG. 7, it is possible to omit the door section for the user to enter and exit the air shower chamber in the removing sections 2A, 2B, and 2C. Also, only some of the techniques exemplified in the above embodiments and modifications may be adopted.

Reference Signs List 1 Body deposit purification device 2 Removal unit 3 Purification unit 4 Gas guide paths 4A, 4B Open end 5 Purification liquid 10 Air shower room 11 Air supply unit 12 Lighting device 13A Entrance door 13B Exit door 14 Detection unit 15 Dust box 16 Lid portion 20 Gas flow path 30 Sterilization/disinfection portion 31 Mist nozzle 33 Storage portion 34 Pump 35 Gas-liquid contact region 36 Backflow prevention portion 37 Gas-liquid separation portion 38 Opening/closing portion 40 Exhaust portion 41 Exhaust port 42 Filter 50 Control portion

Claims (12)

A body deposit cleaning device for removing and cleaning deposits attached to the body,
a removal unit that removes deposits from the body by generating an airflow around the body;
a purifying unit that purifies deposits removed from the body by the removing unit;
a gas guide path that guides the gas that has passed around the body in the removing unit from the removing unit to the purifying unit;
with
The removal unit
an air shower room that surrounds the body;
an air supply unit provided in the upper part of the air shower room for taking in air from the outside to the inside of the body purification apparatus and for generating an air flow from above to below the air shower room;
with
The gas guide path is
guide gas from the lower part of the air shower chamber in the removing unit to the purifying unit;
The purification unit is
a gas flow path through which the gas guided from the removing unit by the gas guide path passes;
Sterilization and disinfection that sterilizes and disinfects particles in the gas by forming a purifying liquid having a sterilizing and disinfecting effect into a mist in the gas flow path, and bringing the gas passing through the gas flow path into contact with the purifying liquid. Department and
a filter provided in the gas flow path for collecting particles in the gas;
an exhaust unit for exhausting the gas in the gas flow path to the outside of the apparatus for cleaning body deposits through an exhaust port;
A device for cleaning body deposits, comprising: The body deposit cleaning device according to claim 1,
The purification unit is
A gas-liquid separation unit for separating liquid from gas passing through the gas flow channel is provided in the gas flow channel downstream of a gas-liquid contact area in which the purification liquid mist and the gas are brought into gas-liquid contact. An apparatus for cleaning body deposits, further comprising: 3. The apparatus for cleaning body deposits according to claim 1 or 2,
The sterilization and disinfection unit
a mist nozzle provided at a position higher than a gas-liquid contact area in which the purification liquid and the gas in the form of mist are brought into contact with each other, and for discharging the purification liquid in the form of mist;
a reservoir provided at a position lower than the gas-liquid contact area, into which the purification liquid once misted flows and is stored;
a pump for pumping up the cleaning liquid stored in the storage unit to the mist nozzle;
A device for cleaning body deposits, comprising: The body deposit cleaning device according to claim 3,
The sterilization and disinfection unit
Among the inner walls forming the gas-liquid contact area, a backflow prevention that extends obliquely downward from a wall surface on the side of the gas guide path toward the storage section and that covers an upper side of the open end of the gas guide path on the purification section side. An apparatus for cleaning body deposits, further comprising a part. The apparatus for cleaning body deposits according to any one of claims 1 to 4,
An apparatus for purifying body deposits, wherein the purifying liquid is hypochlorous acid water. The apparatus for cleaning body deposits according to any one of claims 1 to 5,
An opening/closing portion that can be opened and closed by an operator from outside the purification unit is provided on a wall portion that constitutes a side portion of the purification unit,
The apparatus for cleaning body deposits is characterized in that the mist nozzle and the storage section are opened to the outside by opening the opening and closing section. The apparatus for cleaning body deposits according to any one of claims 1 to 6,
a dust box provided adjacent to the air shower room;
a cover provided on a wall that separates the air shower room and the dust box and that opens and closes between the air shower room and the dust box by being opened and closed by a user from inside the air shower room;
A device for cleaning body deposits, further comprising: The apparatus for cleaning body deposits according to any one of claims 1 to 7,
An apparatus for purifying deposits on the body, comprising a lighting device equipped with an ion generating function for generating positive ions of hydrogen and negative ions of oxygen by plasma discharge, provided above the air shower chamber. The apparatus for cleaning body deposits according to any one of claims 1 to 8,
The removal unit
An apparatus for cleaning body deposits, further comprising a door portion that is openable and closable on a wall portion forming a side portion of the air shower room for a user to enter and exit the air shower room. The apparatus for cleaning body deposits according to any one of claims 1 to 9,
An apparatus for cleaning body deposits, wherein the filter is a HEPA filter or an ULPA filter. The body deposit cleaning device according to any one of claims 1 to 10,
further comprising a control unit for controlling the operation of the device,
The control unit
a process during operation of driving the air supply unit with an operation output for removing deposits adhering to the body of the user in the air shower chamber;
A standby process for driving the air supply unit with a standby output lower than the operating output while the in-operation process is not performed;
An apparatus for cleaning body deposits characterized by performing The body deposit cleaning device according to claim 11,
Further comprising a detection unit for detecting that a user has entered the air shower chamber,
The control unit
When the detector detects that a user has entered the air shower chamber during execution of the standby process, the standby process is automatically switched to the operating process. Body deposit cleaning device.

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