JP2010110345A - Biological toilet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a biological toilet by which a favorable decomposing treatment with bacteria becomes possible without applying an excessive load to each section at the time of rotation while aiming at the performing of a stir-mixing of excrement and a chip for decomposition under a stable state. <P>SOLUTION: The biological toilet 1 includes: a chair section; a toilet body section 2 having a toilet tank 8 in which a stirring space 7 for stir-mixing excretion which has passed the passing hole 9a of a toilet seat 9 opened upward and has been housed is formed; the chip for decomposition which is housed in the stirring space 7 of the toilet tank 8 in advance, and consists of bacteria and the wood chip for treating the housed excretion by utilizing the decomposing work of the bacteria; a stirring mechanism section 3 for stir-mixing the excretion and the chip for decomposition in the stirring space 7 at a specified rotation number; and a stirring driving section 5 which generates a rotation-driving force for performing the stir-mixing by the stirring mechanism section 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a biotoilet, and more particularly to a biotoilet capable of decomposing the excrement mainly into water and air using a function of decomposing the excrement by bacteria (microorganisms).

  2. Description of the Related Art Conventionally, many technologies related to so-called “biotoilet” for treating excreta such as manure excreted by humans using bacteria have been developed and put into practical use in part. This bio-toilet is, for example, a temporary toilet installed in an evacuation site in a disaster area where water and sewage facilities have been damaged by an earthquake, etc., a temporary toilet for work installed in a construction site in remote areas such as in the mountains, or It is used in a wide range of applications such as simple toilets installed in mountain huts that require a great deal of cost and labor for processing excreta due to high altitudes. With such a biotoilet, excreted excreted materials are mainly decomposed into water and air by the decomposition of bacteria, and there is a great merit that it is not necessary to transport the excreted materials to the treatment facility as in the conventional case.

  The above-mentioned biotoilet is a relatively large one that is mainly installed outdoors and is assumed to be used by many people. On the other hand, a small-sized type (portable type) biotoilet has been developed, which is supposed to be used indoors and has excellent transportability. This portable biotoilet is used in homes where people who have difficulty walking independently, such as those requiring nursing care and elderly people, should be installed in the room or bedroom of the person requiring nursing care, etc., and go to the toilet at bedtime etc. It is used when it is not possible to take a long time to the toilet to use a cane or the like.

  Using a normal portable toilet that is not a biotoilet requires the caregiver to handle the excrement and may feel such care as a mental burden, enduring the use of the portable toilet, It could also be a factor leading to flames and other diseases. Therefore, by using a biotoilet capable of disassembling the excrement, the caregiver does not need to perform the excrement disposal or the treatment can be easily performed. The burden on the caregiver is eliminated, and the caregiver's burden is reduced. That is, it has excellent advantages for both the care recipient and the caregiver.

  The bio-toilet installed in the room is generally designed in a furniture-like manner such as a seat chair, and the appearance is considered to be invisible to the toilet at first glance. That is, it does not impair the atmosphere in the room (Japanese-style room, etc.) where the care recipient or the like mainly lives, and even if there are visitors in the room, it does not feel like a toilet. As a general configuration, a biotoilet has a chair part having an appearance such as the above-described seat chair, a toilet tub that is housed in the chair part and includes a space for storing excrement, and for excretion Toilet body part having a configuration such as a toilet seat used, a decomposition chip made of wood chips such as bacteria and sawdust for decomposing excrement contained in the toilet tub space, and excrement and decomposition chip Are mainly provided with a stirring mechanism section for stirring and mixing, and a stirring drive section for driving the stirring mechanism section. In addition to the above configuration, in order to activate the decomposition process of excreta by bacteria, a heater for heating the toilet tub to a temperature suitable for the activity of the bacteria, and odor immediately after excretion leak into the room. In order to prevent such a situation, there may be a case where a structure such as a duct for forcibly discharging odors from the toilet tub space to the outside and an exhaust mechanism including an exhaust fan are provided.

  The above prior art has been publicly implemented, and the applicant has not particularly known a document describing such prior art at the time of filing this application.

  However, portable biotoilets in particular have the following problems. A conventional biotoilet is mainly composed of a rotating shaft portion rotatably supported by a toilet tub and a plurality of propeller portions installed on the rotating shaft portion. It was. That is, since gaps are generated between the plurality of propeller parts projecting from the rotating shaft part, even if the propeller part rotates in cooperation with the rotating shaft part, excrement present in the gaps, etc. Is hardly affected by the rotation of the propeller section. That is, the excrement and the chip for decomposition are not stirred and mixed. Therefore, only excrement and the like located on the rotation trajectory of the propeller part are agitated and mixed, and much time is required to process all excrement in the space. Alternatively, some excreta may remain undecomposed in the space.

  Therefore, in view of the above circumstances, the present invention aims to perform the stirring and mixing of the excrement and the chip for decomposition in a stable state, and does not apply excessive load to each part during rotation, and is favorable due to bacteria. The objective is to provide a biotoilet that can be easily decomposed.

  In order to solve the above-described problems, the biotoilet of the present invention is described as follows: “Toilet body having a toilet tub in which an agitation space for accommodating excreta for agitation and mixing is formed, and the agitation space. A decomposition chip including bacteria and wood chips having a function of decomposing the excrement, and a rotatory shaft rotatably supported on the opposite tank walls of the toilet tub, and arranged over the stirring space. A long shaft-like rotating shaft portion provided, a plurality of propeller portions protruding from the rotating shaft portion in a direction orthogonal to the shaft axis, and from one end of the propeller portion so as to be substantially parallel to the shaft axis An agitation mechanism having an extended scraping bar and cooperating with the rotation of the rotating shaft, and rotating the propeller and the scraping bar in the agitating space; and the rotating shaft It mainly comprises a stirring mechanism section that generates a rotational driving force for rotation, and a rotation transmission section that connects the rotating shaft section and the stirring mechanism section and transmits the rotational driving force. Has been.

  Here, the toilet body is mainly composed of a toilet tub in which a space (stirring space) for stirring and mixing excreta is formed. If an example of a toilet tank is shown, a bottom part and a tank wall part will be formed integrally, and it has the opening part opened upwards. A toilet seat that can be opened and closed by a hinge is installed so as to substantially close the opening. Therefore, the user can store the excrement in the toilet tub of the toilet body by sitting on the toilet seat and dropping the excrement into the agitating space from the toilet seat hole provided in the substantially central part of the toilet seat. In addition, although the raw material which comprises a toilet main-body part is not specifically limited, From the point of workability, cost, and lightweight, it is suitable to use a hard plastic etc. Further, the surface of the toilet tank wall and bottom is not limited to those using an antibacterial agent so that the bacteria of the chip for decomposition contained in the stirring space do not die.

  On the other hand, the chip for decomposition is a mixture of known bacteria having a function of decomposing human excrement such as manure and wood chips such as sawdust as a medium for the activity of the bacteria at a predetermined mixing ratio. It will be. The activity of decomposition treatment of excreta by bacteria requires an appropriate temperature, an appropriate amount of water, and sufficient air (oxygen). Here, sufficient air can be taken in between excrement etc. by stirring excrement etc. with a stirring mechanism part, On the other hand, an appropriate amount of water is supplied by urine contained in excrement Therefore, it is not necessary to replenish unless the chip for decomposition is extremely dry. Moreover, in order to hold | maintain suitable temperature, you may use the heater for heating mentioned above. During the decomposition process by bacteria, heat of decomposition is released, so the use of a heater for heating is limited to immediately after the start of decomposition, and thereafter the temperature in the stirring space is kept constant by the heat of decomposition. There may be.

  On the other hand, the stirring mechanism portion is supported by a long rod-shaped rotating shaft portion spanning the toilet tub. Specifically, by providing shaft support holes through which the shaft ends of the rotary shaft portions can be inserted in the tank walls of the toilet tubs facing each other, and installing them through bearings fixed to the shaft ends, the agitation space The rotating shaft portion can smoothly rotate about the shaft. At this time, the plurality of propeller portions projecting from the rotating shaft portion are formed of a long rod-like member having a diameter smaller than that of the rotating shaft portion, and are attached so as to be orthogonal to the shaft axis of the rotating shaft portion. Here, the interval between the propeller parts adjacent to each other is arbitrarily set, and the mounting angle of the propeller parts adjacent to each other by a predetermined angle (for example, 60 degrees) around the rotation axis of the rotary shaft part. Is provided to change. In addition, the scraping bar extends from one end of the propeller portion so as to be substantially parallel to the shaft axis. The material such as the rotating shaft part constituting the stirring mechanism part is not particularly limited, but has a certain strength so as to sufficiently resist the stirring of the excrement and the load caused thereby. In addition, it is considered preferable to use a metal material such as stainless steel or a hard plastic resin that is not affected by an oxidizing substance such as an acid contained in excreta.

  On the other hand, the agitation drive unit is a shaft of a rotary shaft unit that is rotatably supported by using a rotation transmission unit constituted by a plurality of gears or transmission belts, pulleys, etc., using a conventionally known stirring motor or the like. It is connected to the end and generates a rotational driving force for rotation. Thereby, a propeller part and a scraping bar cooperate with rotation of a rotating shaft part, and rotate in stirring space. Here, the rotation of the rotation shaft portion by the rotation drive unit is set to a very slow rotation speed, and for example, about 9 rotations per minute is assumed.

  That is, when it is set to high-speed rotation, it is expected that excrement etc. will scatter in the agitation space and cause bad odor, etc. It does not matter as long as it can take in the necessary air. Furthermore, the operation start timing of the agitation drive unit may be, for example, a manual type that is performed by a user operating a predetermined operation switch after excretion of excrement is completed, or on the toilet seat. It can be set to any of the auto methods that automatically start operation when the jumping-up seat provided on is returned to its original state. Furthermore, the stirring time may include an auto-off function that automatically stops rotation by a timer when a predetermined time (for example, 5 minutes) has elapsed since the start of operation. Thereby, even at bedtime etc., an operation sound and vibration do not continue for a long time.

  Therefore, according to the biotoilet of the present invention, by providing the scraping bar extending substantially parallel to the shaft axis from the propeller portion, there is an opportunity for the stirring mechanism portion and excrement to contact in the stirring space. Become more. In particular, even between the propeller portions that have not been affected by rotation in the past, the scraping bar extends from the tip of the propeller portion, so that it is reliably affected by the rotation. As a result, the chance of contact between bacteria and excrement increases, and the efficiency of the decomposition treatment can be improved. Thereby, the decomposition | disassembly process of the excrement in a stirring space progresses rapidly in a short time, and an undecomposed excrement does not remain in a stirring space.

  In addition, since the position of each propeller part is attached with a predetermined angle shifted about the rotation axis of the rotary shaft part, excrement is hardened in one place or pressed against the insertion wall side There is no. Further, the scraping bar can prevent the toilet paper from being entangled, and the toilet paper can be divided into small pieces so as to be easily disassembled.

  Furthermore, the biotoilet according to the present invention has the above-described configuration, in which “the stirring mechanism portion includes at least a pair of the rotating shaft portions, and the propeller portion and the scraping bar installed on each of the rotating shaft portions. The rotation transmission unit distributes and transmits the rotation driving force supplied from the stirring drive unit to the adjacent rotation shaft units so that their rotation directions are different from each other. A “direction adjusting mechanism” may be provided.

  Therefore, according to the biotoilet of the present invention, at least a pair of rotation shaft portions are provided, and the rotation directions of the rotation shaft portions adjacent to each other are different, in other words, with respect to rotation (forward rotation) of one rotation shaft portion. The other is rotated in the reverse direction (reverse rotation). In general, the rotation speeds of the respective rotary shaft portions are set to be the same. For example, even if one gear ratio of the rotation direction adjusting mechanism is changed and the rotation speed of each rotary shaft portion is changed, for example. I do not care.

  Further, the rotation direction adjusting mechanism may be one in which a transmission gear is attached to the motor shaft of the agitation motor that supplies the rotational driving force, and the respective rotating shaft portions are rotated in the reverse direction by combining a plurality of gears. Or, when a pulley, a transmission belt, or the like is used, one using a known rotation transmission system is assumed. Detailed description of the technology will be omitted. Thereby, the excrement etc. in the stirring space is not biased in one direction, and is uniformly in contact with the scraping bar of the stirring mechanism portion in the stirring space. As a result, the decomposition process by bacteria is stably performed, and the decomposition process can be completed in a short time.

  Furthermore, the biotoilet according to the present invention has the above-described configuration, in which “the scraping bar extends from one end of the propeller portion toward at least one direction or in both directions, the scraping bar and the It may be “substantially L-shaped or T-shaped by the propeller portion”.

  Therefore, according to the biotoilet of this invention, it is comprised by the substantially T shape or the substantially L shape as a whole by the propeller part and the raking bar. Here, when the propeller part is provided in the vicinity of the tank wall surface of the tank wall of the toilet tank, in other words, in the vicinity of the shaft end of the rotating shaft part, the extension direction of the raking bar is one direction in order to avoid interference during rotation. It is limited to (the central direction of the stirring space). On the other hand, from the propeller part provided near the center of the rotating shaft part, there is no interference with the rotation, and therefore it can be extended in both directions (opposing tank wall surfaces). Thereby, a scraping bar can be installed with respect to the entire range of the shaft length of the rotating shaft portion. As a result, the excrement accommodated in the stirring space is affected at least in part by the rotation of the scraping bar, and the excrement and the chip for decomposition are mixed well.

  Furthermore, the biotoilet according to the present invention has, in addition to the above configuration, “the tank wall surface and bottom surface of the toilet tank are formed to be concavely curved so as to substantially coincide with the rotation trajectory of the scraping bar”. It does not matter.

  Therefore, according to the biotoilet of the present invention, the tank wall surface and bottom surface of the toilet tank are curved in a concave shape so as to substantially coincide with the rotation trajectory of the scraping bar. Thereby, the distance between a scraping bar, a tank wall surface, etc. can be made small. As a result, since the excrement etc. in the vicinity of a tank wall surface etc. are raked out by the raking bar, excrement etc. of the part concerned can be stirred.

  As an effect of the present invention, due to the function of the scraping bar extended from the propeller portion, the excrement and the chip for decomposition are not biased in the stirring space, and the stirring and mixing can be sufficiently performed. As a result, the function of decomposing bacteria contained in the decomposing chip is stably exhibited, and the excrement can be satisfactorily decomposed in a short time.

  Hereinafter, a biotoilet 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. Here, FIG. 1 is explanatory drawing seen from the top which shows schematic structure of the toilet main body part 2, the stirring mechanism part 3, and the stirring drive part 5 of the biotoilet 1 of this embodiment, and FIG. FIG. 3 is an explanatory view showing an example of stirring. In the biotoilet 1 of the present embodiment, in order to particularly explain the functional configuration related to the decomposition treatment by bacteria, the configuration of the chair portion with the furniture-like design that forms the external shape of the biotoilet 1 is illustrated and detailed. The description will be omitted.

  As shown in FIGS. 1 to 3, the biotoilet 1 of the present embodiment includes a chair part (not shown) and a toilet body part that is installed inside the chair part and performs a decomposition process on the excrement 4. 2, an agitation mechanism unit 3 for agitating and mixing the excrement 4, an agitation drive unit 5 for driving the agitation mechanism unit 3, and a decomposition chip 6 for decomposing the excrement 4. It is mainly composed.

  Here, the toilet body part 2 is provided below the jumping-up seat part installed in the chair part. More specifically, a toilet tub 8 that temporarily stores the excreted excrement 4 and further has a stirring space 7 for stirring and mixing therein, and an opening of the toilet tub 8 that opens upward. 8a is substantially closed, and a leap-type toilet seat 9 having a passage hole 9a through which the excrement 4 passes is formed in the center. More specifically, the toilet tub 8 having an opening 8a that opens upward is formed by a bottom 10 and a tub wall 11 that surrounds the four sides. The bottom surface 10a and the tank wall surfaces 11a, 11b, 11c, and 11d that are in direct contact with the excrement 4 are formed as curved surfaces that are concavely curved in accordance with the rotation trajectory of the stirring mechanism unit 3 (see arrow C in FIG. 3). (Details will be described later). Although the material which comprises the toilet tub 2 is not specifically limited, Here, the hard plastic material excellent in lightweight property and intensity | strength is used.

  On the other hand, as shown in FIGS. 1 to 3, the agitation mechanism 3 includes an agitation space 7 between a pair of tank wall surfaces 11 a and 11 b facing each other of the tank wall 11 constituting the side part of the toilet tank 2. It is bridged from the bottom surface 10a of the bottom portion 10 of the base plate 10 so as to maintain a predetermined height, and the shaft end holes 13a drilled in the shaft ends 12a and 12b and the tank wall 11 can be rotated via a bearing 13b. A long rod-like rotary shaft portion 14 connected in a pivotal manner, and a plurality of long rod-like propeller portions projecting from the rotary shaft portion 14 so as to be orthogonal to the shaft axial direction while maintaining a predetermined interval 15 and a scraping bar 16 each extending from the tip of the propeller portion 15 so as to be substantially parallel to the shaft axis direction of the rotary shaft portion 14. Here, in the stirring space 7 of the toilet tub 8, a pair of rotating shaft portions 14 are arranged with their shaft axes parallel to each other (see FIG. 1 and the like).

  Here, the propeller portion 15 is installed at a predetermined interval in the length direction of the shaft axis with respect to the single rotation shaft portion 14, and has a protruding direction with respect to the rotation axis of the rotation shaft portion 14. It is attached with a predetermined angular displacement (here, 60 degrees) (see FIG. 3 etc.). At this time, the scraping bar 16 extending from the tip of the propeller unit 15 is directed toward the center of the stirring space 7 from the propeller unit 15 protruding from the position in the vicinity of the tank wall surfaces 11 a and 11 b of the toilet tank 2. In other words, the propeller portion 15 extends in one direction, and protrudes from the vicinity of the center of the rotary shaft portion 14 toward the tank wall surfaces 11a and 11b, in other words, in both directions. It is installed. That is, the propeller portion 15 and the raking bar 16 are configured to have a substantially L shape in the vicinity of the tank wall surface 11a and the like, and have a substantially T shape in the vicinity of the center of the rotating shaft portion 14.

  Here, the rotating shaft portion 14, the propeller portion 15, and the scraping bar 15 that constitute the stirring mechanism portion 3 are not particularly limited to the constituent materials, but the excrement 4 and the decomposition tip 6 during stirring and mixing. It is necessary to have some strength to resist the load received from and prevent deformation, and so that it is not affected by oxidation or the like by substances contained in the excreta 4 etc. It seems to be preferable to use a metal material such as stainless steel or a hard plastic having a high strength. In particular, since the rotating shaft 14 is the place most subjected to the load due to the agitation and mixing, it is desirable to construct the whole with a metal material. Further, although not shown, the propeller portion 15 projecting from the rotating shaft portion 14 is most loaded with the excrement 4 or the like at the tip portion where the scraping bar 16 is extended, and the root of the rotating shaft portion 14 is generated. A large force may be applied nearby. In view of this, a configuration may be adopted in which the vicinity of the roots of the propeller portions 15 is connected by a metal reinforcing bar (not shown) to withstand the above-described load. Furthermore, the tank wall surface 11a of the toilet tank 8, etc., the surface of the propeller unit 15 and the scraping bar 16 of the stirring mechanism unit 3, that is, the place where there is a high possibility that the excrement 4 and the chip 6 for decomposition are in direct contact with each other. An antibacterial material that may kill bacteria contained in the decomposition chip 6 or a material obtained by coating the surface with an antibacterial agent cannot be used. Moreover, although the structure of the rotating shaft part 14 etc. which comprise the stirring mechanism part 3 showed all the thing of a long rod shape (especially cylindrical rod shape), it is not limited to this, The stirring space 7 of the toilet tub 8 Can be arbitrarily set according to the shape, the rotation trajectory of the propeller unit 15 and the like, and the load received from the excrement 4 or the like during stirring and mixing, for example, a flat plate or a square bar. It doesn't matter.

  Further, as shown in FIG. 1 and the like, the agitation drive unit 5 is supplied to the pair of rotation shaft units 14 by the agitation motor 20 capable of supplying a rotational drive force that can rotate along the rotation axis, and the agitation motor 20. The rotational driving force to be distributed is distributed to each of the pair of rotating shaft portions 14, and the rotation directions of the rotating shaft portions 14 are different from each other. The rotation transmission part 18 which has the rotation direction adjustment mechanism 17 which reversely rotates is provided.

  Here, the rotation transmitting unit 18 having the rotation direction adjusting mechanism 17 transmits the rotational driving force generated by the stirring motor 20 to the rotating shaft unit 14 using a plurality of gears or belts, and the like. By combining these combinations, it is possible to arbitrarily set the rotational speed and the forward / reverse direction of rotation of each rotary shaft portion 14. Since the rotation transmission part 18 using the gear etc. is a well-known machine element, detailed description shall be abbreviate | omitted here. In the present embodiment, the pair of rotating shaft portions 14 is set to a rotational speed of about 9 rotations per minute in the stirring space 7 by the rotational driving force supplied by the stirring motor 20 of the stirring driving portion 5. Has been. In the biotoilet 1 of the present embodiment, the drive start timing of the agitation mechanism unit 3 by the agitation drive unit 5 is the drive start switch when the seat portion of the chair unit returns from the jumping state to the original state. (Not shown) is activated, and the stirring motor 20 is set to be driven at the set rotational speed for about 5 minutes. And after the preset time passes, the drive of the stirring drive part 5 is stopped and it sets so that the rotation by the stirring mechanism part 3 in the stirring space 7 may be complete | finished.

  Further, the disassembly tip 6 is stored in advance in the stirring space 7 and stirred and mixed by the excreted excrement 4 and the stirring mechanism unit 3. Here, the chip 6 for decomposition is an appropriate mixing ratio of bacteria having a function of decomposing the excrement 4 and mainly converting it into water and air, and a wood chip composed of sawdust and the like acting as a bacterial culture medium. Are mixed.

  Next, an example of the decomposition process of the excrement 4 using the biotoilet 1 of the present embodiment will be described. First, when the excrement 4 is excreted in the stirring space 7 and the raised seat portion returns to the original state as described above, the drive start switch is activated to perform stirring by the stirring mechanism portion 3. The stirring motor 20 of the stirring drive unit 5 is driven. Thereby, the motor shaft of the stirring motor 20 rotates and a rotational driving force is generated.

  The generated rotational driving force is transmitted to the pair of rotating shaft portions 14 supported by the stirring space 7 via the rotation transmitting portion 18. At this time, the rotational direction adjusting mechanism 17 applies a rotational driving force that rotates in the opposite direction to the pair of rotating shaft portions 14 in a distributed manner. As a result, in the stirring space 7, as shown in FIG. 3 (see arrow C), each propeller portion 15 and the scraping bar 16 mounted on the rotating shaft portion 14 rotate so as to be close to each other from above. After the heights of the rotation shafts of the rotary shaft portion 14 are closest to each other, rotation is supplied such that the two are separated from each other toward the lower side.

  At this time, the tank wall surfaces 11c and 11d of the toilet tank 8 and the bottom surface 10a of the bottom part 10 are constituted by a curved surface 19 that is curved in a concave shape so as to substantially coincide with the rotation trajectory created by the propeller part 15 and the scraping bar 16. (See FIG. 3). Therefore, near the center of the stirring space 7 of the toilet tub 8, in other words, the excrement 4 and the disassembling tip 6 that exist between the pair of rotating shaft portions 14 are propeller portions 15 that rotate downward from above. Due to the movement of the scraping bar 16, the bar moves from near the center to below the shaft axis of the rotary shaft portion 14 and further upwardly along the tank wall surfaces 11c and 11d. And the excrement 4 etc. which reached | attained the center vicinity of the stirring space 7 repeats the same motion as the above again.

  Here, the biotoilet 1 of the present embodiment has a scraping bar 16 extending from the propeller unit 15. The scraping bar 16 satisfies the length of the toilet tank 8 in one direction so that at least one scraping bar 16 corresponds to the shaft axis of the rotating shaft portion 14 spanned over the toilet tank 8. It is arranged. Therefore, the excrement 4 excreted in the stirring space 7 and the disassembling tip 6 accommodated are surely in contact with the scraping bar 16 or the propeller unit 15. As a result, even the excrement 4 or the like existing between the propeller parts 15 is reliably stirred and mixed with the decomposition tip 6 by the rotation of the scraping bar 16. Further, since the propeller unit 15 is protruded by being displaced by a predetermined angle with respect to the rotation axis, the decomposition target other than the excrement 4 (toilet paper or the like) is rarely entangled. These can be finely cut by 16. Thereby, the efficiency of the decomposition | disassembly process by bacteria will improve. That is, in the conventional biotoilet, since the configuration of the scraping bar 16 peculiar to the biotoilet 1 of the present embodiment is not provided, it is possible to sufficiently stir and mix the excrement and the like present between the respective propeller parts. However, it may take a lot of time to decompose the excrement by bacteria, and the biotoilet 1 of the present embodiment can eliminate such drawbacks.

  As described above, the rotation of the stirring mechanism unit 3 by the stirring driving unit 5 automatically stops after a predetermined set time (for example, 5 minutes) has elapsed. However, after the set time has elapsed, the decomposition chip 6 having bacteria and the excrement 4 are in a sufficiently mixed state, and thereafter, the decomposition of the excrement 4 is natural by leaving these mixtures standing. It will progress to. Furthermore, because the decomposition heat generated by the decomposition of the excrement 4 maintains a temperature suitable for activating the activity of the bacteria, the excrement 4 finally becomes water and air after a decomposition treatment time of about several hours. Will be disassembled. As a result, only the decomposition tip 6 remains in the stirring space 7. When the excrement 4 is newly introduced, the decomposition chip 6 is stirred and mixed with the excrement 4 again, and used for performing a bacterial decomposition process. That is, the disassembly tip 6 can be used semi-permanently, and when the amount accommodated in the stirring space 7 decreases, it is only necessary to replenish the necessary amount as appropriate.

  Furthermore, since the tank wall surface 11a and the bottom surface 10a and the bottom surface 10a are concavely curved along with the rotation trajectories of the propeller portion 15 and the scraping bar 16, the excrement 4 and the like are partially biased in the stirring space 7 and rotate completely. It is not stored in a part that is not affected by the stirring by. Therefore, mixing with the chip | tip 6 for a decomposition | disassembly is rapidly performed by stirring mixing, and it becomes possible to perform a decomposition | disassembly process in the state containing sufficient air.

  The present invention has been described with reference to preferred embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention as described below. And design changes are possible.

  That is, in the biotoilet 1 of the present embodiment, the one in which the pair of rotating shaft portions 14 are disposed in the stirring space 7 is shown, but the present invention is not limited to this, and only one rotating shaft portion 14 or Three or more rotating shaft portions 14 may be arranged in the stirring space 7. Here, the number of the rotating shaft portions 14 greatly affects the processing ability of the excrement 4 and the like that can be stirred and mixed at a time, and also affects the size of the toilet tub 8 or the toilet body 2. To do. Therefore, the number of rotating shaft portions 14 and the like may be appropriately selected according to the amount of excrement 4 that can be decomposed at a time.

It is explanatory drawing seen from the upper direction which shows schematic structure of the toilet tank, stirring mechanism part, and stirring drive part of the biotoilet of this embodiment. It is a perspective view which shows the structure of the stirring mechanism part. It is explanatory drawing which shows an example of stirring.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Biotoilet 2 Toilet body part 3 Stirring mechanism part 4 Excrement 5 Stirring drive part 6 Disassembly tip 7 Stirring space 8 Toilet tank 8a Opening part 9 Toilet seat 9a Passing hole 10 Bottom part 10a Bottom face 11 Tank walls 11a, 11b, 11c, 11d Tank wall surface 12a, 12b Shaft end 13a Shaft support hole 13b Bearing 14 Rotating shaft portion 15 Propeller portion 16 Scraping bar 17 Rotation direction adjustment mechanism 18 Rotation transmission portion 19 Curved surface 20 Stirring motor

Claims (4)

A toilet body having a toilet tub in which a stirring space for containing excrement for stirring and mixing is formed;
A chip for decomposition comprising bacteria and wood chips having a function of decomposing the excrement contained in the stirring space;
A long shaft-shaped rotary shaft portion rotatably supported on the opposite tank walls of the toilet tub and arranged in the agitating space, protruding from the rotary shaft portion in a direction perpendicular to the shaft axis A plurality of propeller parts, and a scraping bar extending from one end of the propeller part so as to be substantially parallel to the shaft axis, and cooperating with the rotation of the rotary shaft part, And a stirring mechanism for rotating the scraping bar in the stirring space;
An agitation mechanism that generates a rotational driving force for rotating the rotary shaft;
A biotoilet comprising: a rotation transmission unit that connects the rotation shaft unit and the stirring mechanism unit and transmits the rotation driving force. The stirring mechanism part is
It is configured to have at least a pair of the rotating shaft portions, and the propeller portion and the scraping bar installed on each rotating shaft portion,
The rotation transmission unit is
It further comprises a rotation direction adjusting mechanism that distributes and transmits the rotation driving force supplied from the agitation driving unit to the rotation shaft units adjacent to each other so that the rotation directions thereof are different. The biotoilet according to claim 1. The scraping bar is
Extending from one end of the propeller part toward at least one of one direction or both directions,
The biotoilet according to claim 1 or 2, wherein the scraping bar and the propeller part have a substantially L shape or a substantially T shape. The tank wall and bottom of the toilet tank are
The biotoilet according to any one of claims 1 to 3, wherein the biotoilet is formed in a concave shape so as to substantially coincide with a rotation trajectory of the scraping bar.

Images