Organic matter decomposition treatment equipment

Abstract

To aim for energy conservation. [Solution] The organic matter decomposition treatment device 10 comprises a cylindrical rotary treatment tank 20 with a bottom that contains a bacteria bed 50 and into which sewage is fed as the material to be treated, an agitation section 60 provided inside the rotary treatment tank 20 for agitating the bacteria bed 50 and sewage, a motor (electric motor) 31 as a drive source for rotating the rotary treatment tank 20, a sprocket 32 ​​as a gear attached to the output shaft (drive shaft) 31a of the motor 31, and meshing teeth 33A that mesh with the sprocket 32 ​​and have more teeth than the sprocket 32 ​​at equal pitch intervals around the entire circumference of the circumferential surface of the rotary treatment tank 20.

Description

[Technical field]

[0001] The present invention relates to an organic matter decomposition treatment device used in bio-toilets, food waste treatment machines, etc., which decomposes and treats organic waste such as human and livestock excrement (human waste, manure) and food waste through the action (function) of microorganisms, and in particular to an organic matter decomposition treatment device which can achieve energy savings. [Background technology]

[0002] Biotoilets are known that use a device for treating human human waste by introducing the waste into sawdust, stirring the waste together with the sawdust, and decomposing the waste with microorganisms. This type of biotoilet does not require the waste to be flushed down the sewer, i.e., there is no drainage, and no need to collect the waste, and does not require sewage treatment facilities or septic tanks, and can treat waste on-site in buildings and facilities. Moreover, the decomposed waste from the waste can be effectively used together with the sawdust as compost or soil improvement material. For this reason, biotoilets have been attracting attention in recent years as they can contribute to the realization of a recycling-oriented society.

[0003] However, because these bio-toilets use microorganisms to ferment and decompose human waste, they require electricity to agitate the sawdust and human waste to supply oxygen to the microorganisms and to heat the material to a temperature suitable for microbial growth. These high running costs have hindered their widespread adoption.

[0004] Here, as an example of a decomposition treatment device conventionally used in this type of bio-toilet, as disclosed in Patent Documents 1 and 2, etc., a known device is equipped with a treatment tank formed with a U-shaped cross section for receiving human waste, a horizontal rotating shaft that is installed horizontally within the treatment tank and driven by a motor, and stirring blades that are attached radially to the horizontal rotating shaft and stir the sawdust and human waste, with the sawdust and human waste to which microorganisms are attached being stirred by the stirring blades that rotate within the treatment tank.

[0005] However, in patent documents 1 and 2, etc., a horizontal rotation shaft is installed horizontally within a treatment tank formed with a U-shaped cross section, and agitator blades arranged in the radial direction of the horizontal rotation shaft rotate around the horizontal rotation shaft, so that the height of the treatment tank is required.

[0006] Therefore, in the conventional decomposition treatment device, the height of the treatment tank had to be increased in order to ensure a predetermined internal volume of the treatment tank. However, the biotoilet in which such a decomposition treatment device is used has a structure in which a toilet bowl is placed above the treatment tank, so if the height of the treatment tank is increased, the position of the toilet bowl will be raised. For this reason, the floor of the toilet must be set higher than the ground on which the toilet is installed, and there are cases in which a means of ascent or descent, such as stairs, is required to facilitate the entry and exit of toilet users. In other words, it is difficult to meet the recent demand for barrier-free access, and toilets that require stairs or other means of ascent or descent are difficult to use for the elderly, injured people, people in wheelchairs, etc., and even if a caregiver accompanies them, it is a burden to go up and down the stairs or other means. Therefore, in order to further popularize biotoilets, it is desirable to have a design that allows for barrier-free access that is easy for toilet users to use.

[0007] On the other hand, Patent Document 3 discloses a technology that includes a turntable that rotates by the driving force of a motor or the like via a reduction gear and a drive belt, a sewage decomposition tank (treatment tank) that receives the rotational force from the turntable and can be easily attached and detached, and a fixed agitator plate that is suspended independently so as not to come into contact with the sewage decomposition tank, and in which wood chips containing microorganisms and organic sewage are agitated by the fixed agitator plate in the rotating sewage decomposition tank. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] JP 2018-143601 A [Patent Document 2] JP 2001-120460 A [Patent Document 3] JP 2000-107076 A Summary of the Invention [Problem to be solved by the invention]

[0009] However, in a system as described in Patent Document 3, in which the driving force of a motor or the like is transmitted to the rotating shaft of a rotating table via a reduction gear and a drive belt, and the treatment tank is placed on the rotating table and rotated together with the rotating table, a large driving force and energy consumption are required to rotate the treatment tank.

[0010] Therefore, an object of the present invention is to provide an organic matter decomposition treatment apparatus capable of saving energy. [Means for solving the problem]

[0011] The organic matter decomposition treatment device of the invention of claim 1 comprises a cylindrical rotary treatment tank with a bottom that contains a bacterial bed and into which the material to be treated is introduced, an agitation section provided inside the rotary treatment tank for agitating the bacterial bed and the material to be treated, a drive source for rotating the rotary treatment tank, a gear attached to the output shaft of the drive source, and meshing teeth that mesh with the gear and have a greater number of teeth than the gear at equal pitch intervals around the entire circumference of the circumferential surface of the rotary treatment tank.

[0012] The rotary treatment tank is a tank that contains a bacterial bed and ferments and decomposes the material to be treated by the microorganisms in the bacterial bed. It is a cylindrical tank with a bottom and an opening at the top through which the material to be treated is introduced. The stirring section is provided inside the rotary treatment tank and stirs the bacterial bed and the material to be treated contained in the rotary treatment tank. The driving source drives the rotary treatment tank to rotate, and may be, for example, a driving motor (electric motor) such as an electric motor, a handle type (hand-cranked) that rotates the tank manually, or a pedal type (foot-pedaled) that rotates the tank by pedaling with the feet. The material to be treated is an object to be fermented and decomposed by microorganisms, and is organic matter such as human or livestock waste (human waste, excrement) and organic waste such as food waste.

[0013] The gear is connected to the output shaft (drive shaft) of the drive source, rotates together with the rotation of the output shaft of the drive source, and transmits the driving force of the drive source to the rotary processing tank via the meshing teeth by meshing with the meshing teeth arranged in a ring shape at equal pitch intervals on the circumferential surface of the rotary processing tank. The number of teeth (z) of this gear is smaller than the number of the meshing teeth arranged in a ring shape at equal pitch intervals on the circumferential surface of the rotary processing tank. When the meshing teeth arranged in a ring shape at equal pitch intervals on the circumferential surface of the rotary processing tank are formed by a circular chain, the gear is formed by a sprocket corresponding to the tooth profile of the circular chain, and when the meshing teeth arranged in a ring shape at equal pitch intervals on the circumferential surface of the rotary processing tank are formed by a gear, the gear is formed by a gear (such as a spur wheel) corresponding to the tooth profile of the gear.

[0014] The meshing teeth mesh with the gear, and are arranged in a ring shape at equal pitch intervals on the circumferential surface of the rotary treatment vessel with a number of teeth greater than the number of teeth of the gear, and may be formed, for example, by attaching a ring chain to the circumferential surface of the rotary treatment vessel, or by attaching a ring gear. Note that the meshing teeth are not limited to teeth in the shape of a gear, but refer to teeth in the broad sense of the uneven shape (ridges and valleys) that mesh with the gear.

[0015] Claim 1 In the organic matter decomposition treatment device of the invention, the interlocking teeth are formed by a circular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, and the gears are formed by sprockets that mesh with the circular chain. The circular chain may be a roller chain or a silent chain. Preferably, when a double-sided meshing type is used, for example, the meshing teeth on the outer circumferential surface side are meshed with a sprocket to form a transmission mechanism that transmits the driving force of the drive source to the rotary treatment tank, while the meshing teeth on the inner circumferential surface side are separately meshed with a gear (pinion), and a member such as a cutter for breaking down lumps of toilet paper or bacteria bed into small pieces is attached to the rotation shaft of the internal gear in the rotary treatment tank, allowing the member to rotate with the rotation of the rotary treatment tank. This makes it possible to improve the decomposition treatment performance.

[0016] Claim 1 In the organic matter decomposition treatment device of the present invention, a cutter is disposed inside the rotary treatment tank. The cutter is used to break down toilet paper or to crush lumps of bacterial bed that have absorbed moisture, and the shape of the cutter is not particularly important as long as it can break down toilet paper or lumps of bacterial bed into small pieces. Preferably, the cutter can also promote the movement (discharge) of the bacterial bed by rotating (rotating).

[0017] Claim 1 The organic matter decomposition treatment apparatus of the present invention further comprises a cutter transmission mechanism for transmitting the rotation of the rotary treatment tank to the cutter. The cutter transmission mechanism can be composed of, for example, a belt, a pulley, a chain, a sprocket, a gear, and the like.

[0018] Claim 1 The meshing teeth of the organic matter decomposition treatment device of the invention are formed by a circular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, the gears are formed by sprockets that mesh with the outer periphery of the circular chain, the cutter transmission mechanism comprises a cutter gear that meshes with the inner periphery of the circular chain attached to the upper edge of the rotary treatment tank, and a rotating shaft to which the cutter gear is fixed, and the cutter is attached integrally to the rotating shaft. The cutter gear meshes with the meshing teeth on the inner peripheral surface of a circular chain attached around the entire circumferential surface of the upper edge of the rotary treatment tank, and has a smaller number of teeth than the meshing teeth of the circular chain.

[0019] Claim 2 The organic matter decomposition treatment device of the present invention further comprises a moisture applying means for dripping moisture onto the stirring section and / or the cutter. The moisture-adding means may be configured to add moisture (humidity) to the toilet paper in the bacterial bed by dripping water onto the agitator and / or cutter, and may, for example, be composed of a tank containing water, a pipeline that directs the water in the tank to the agitator and / or cutter, and a nozzle that drips water from the pipeline.

[0020] Claim 3 The bottom of the rotary treatment tank of the organic matter decomposition treatment apparatus of the present invention is rotatably supported by rollers or a rotor. The rollers may be any roller capable of receiving the bottom surface of the rotary treatment vessel and supporting the rotary treatment vessel so as to be capable of rotating freely. For example, ball rollers (free ball bearings, ball casters) may be used. The above-mentioned rotating body may be any body that receives the bottom surface of the rotary processing tank and rotatably supports the rotary processing tank. For example, Mawar (registered trademark) manufactured by Osaka Taiyu Co., Ltd. or a turntable may be used. Effect of the Invention

[0021] According to the organic decomposition treatment device of the invention of claim 1, a gear attached to the output shaft of a drive source that rotates a bottomed cylindrical rotary treatment tank containing a bacterial bed and materials to be treated is engaged with a gear having a greater number of teeth than the gear at equal pitch intervals on the entire circumference of the circumferential surface of the rotary treatment tank. Therefore, the driving force of the drive source is transmitted to the rotary treatment tank by a gear transmission mechanism consisting of the gear attached to the output shaft of the drive source and the meshing teeth arranged in a ring shape on the circumferential surface of the rotary treatment tank and having a greater number of teeth than the gear. Therefore, the rotary treatment tank can be rotated with a small driving force of the drive source and little energy consumption, and the rotation of the rotary treatment tank causes the stirring blades installed in the rotary treatment tank to stir the bacterial bed and organic materials to be treated in the rotary treatment tank, promoting the fermentation and decomposition of the materials to be treated by microorganisms. Therefore, energy saving can be achieved.

[0022] Claim 1 According to the organic matter decomposition treatment device of the present invention, the meshing teeth are formed by a circular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, and the gears are formed by sprockets that mesh with the circular chain. If the chain is a circular chain, it can be attached simply by adjusting the length of the chain according to the circumference of the rotary treatment tank. ,times It is easy to obtain a size that corresponds to the circumference of the conversion tank.

[0023] Claim 1 According to the organic matter decomposition treatment device of the present invention, a cutter is further provided inside the rotary treatment tank, so that when the device is applied to a bio-toilet, the toilet paper and clumps of the bacteria bed can be broken down into smaller pieces by the cutter. ,to This prevents the generation of bad odors caused by residual islet paper and clumps of the culture bed, as well as a decrease in the efficiency of the decomposition process.

[0024] Claim 1 According to the organic matter decomposition treatment device of the present invention, a cutter transmission mechanism is further provided for transmitting the rotation of the rotary treatment tank to the cutter to rotate the cutter. Therefore, the cutter can be rotated by a common drive source which also drives the rotary treatment tank. ,anotherThis allows toilet paper or clumps of culture medium to be broken down more quickly and without consuming any energy during the process.

[0025] Claim 1 According to the organic matter decomposition treatment device of the present invention, the meshing teeth are formed by a circular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, the gear is formed by a sprocket that meshes with the outer circumferential side of the circular chain, the cutter transmission mechanism is composed of a cutter gear that meshes with the inner circumferential surface side of the circular chain provided on the upper edge of the rotary treatment tank, and a rotating shaft of the cutter gear, and the cutter is attached integrally to the rotating shaft. ,mosquito The rotation mechanism that rotates the rotor can be made with fewer parts.

[0026] Claim 2 According to the organic matter decomposition treatment device of the present invention, the device further includes a moisture applying means for dripping moisture onto the stirring section and / or the cutter, so that moisture can be added to the toilet paper, which makes it easier for the toilet paper to unravel. Claim 1 In addition to the effects described above, it is possible to more effectively prevent the generation of unpleasant odors due to remaining toilet paper and the decrease in the efficiency of decomposition treatment.

[0027] Claim 3 According to the organic matter decomposition treatment device of the present invention, the bottom of the rotary treatment tank is rotatably supported by rollers or a rotor, so that the load torque of the rotary treatment tank can be reduced. Therefore, in addition to the effect of claim 1, the rotary treatment tank can be rotated with less driving force and less energy consumption. [Brief description of the drawings]

[0028] [Figure 1] FIG. 1 is a schematic diagram for explaining an outline of a bio-toilet in which an organic matter decomposition treatment device according to an embodiment of the present invention is installed. [Diagram 2] FIG. 2 is an explanatory diagram for explaining an organic matter decomposition treatment apparatus according to an embodiment of the present invention. [Diagram 3]FIG. 3 is an explanatory diagram showing an organic matter decomposition treatment apparatus according to an embodiment of the present invention, as viewed from above a rotary treatment tank. [Figure 4] FIG. 4 is an explanatory diagram showing an organic matter decomposition treatment apparatus according to an embodiment of the present invention, as viewed from the side of a rotary treatment tank. [Diagram 5] FIG. 5 is an explanatory diagram for explaining another configuration example of an organic matter decomposition treatment apparatus according to an embodiment of the present invention. [Figure 6] FIG. 6 is an explanatory diagram for explaining still another configuration example of the organic matter decomposition treatment apparatus according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the embodiments, the same symbols and the same reference numerals in the drawings indicate parts having the same or corresponding functions, and therefore, detailed descriptions thereof will be omitted here.

[0030] [Embodiment Mode] First, an organic matter decomposition treatment device 10 according to an embodiment of the present invention will be described with reference to Figures 1 to 4. The embodiment of the present invention illustrates a case in which the organic matter decomposition treatment device of the present invention is applied to a bio-toilet 100 that is installed outdoors.

[0031] As shown in FIG. 1, the bio-toilet 100 of this embodiment includes toilet bowls 111, 112 within a building 110, and an organic matter decomposition treatment device 10 (hereinafter, sometimes simply referred to as "decomposition treatment device 10") that uses microorganisms to decompose and treat human waste (organic matter to be treated) excreted into the toilet bowls 111, 112.

[0032] More specifically, in the bio-toilet 100 according to this embodiment, two private spaces 131, 132 are formed in a building 110 by a partition board 121, and a urinal 111 exclusively for men to urinate is installed in one private space 131, while a toilet 112 with a Western-style toilet seat for both urination and defecation is installed in the other private space 132. In addition, two doors 141, 142 that can be opened and closed are provided to allow access to each private space 131, 132. The building 110 is made of, for example, plastic, wood, steel, etc. The toilets 111, 112 are made of, for example, stainless steel, hard plastic, or ceramic. In the bio-toilet 100 according to this embodiment, one decomposition treatment device 10 is installed below the toilet bowls 111, 112 provided in each of the private spaces 131, 132.

[0033] As shown in Figures 1 to 4, the decomposition treatment device 10 of this embodiment has a cylindrical rotary treatment tank 20 with a bottom, a motor 31, a sprocket 32, and a circular chain 33 as a drive mechanism for rotating the rotary treatment tank 20, an agitation section 60 and a cutter section 70 installed in the rotary treatment tank 20, and a hot air blower 80 for blowing hot air to the bacterial bed 50 contained in the rotary treatment tank 20, etc., and the rotary treatment tank 20 is contained in a base 40 installed in a building 110, and human waste and toilet paper waste that fall into the rotary treatment tank 20 from toilet bowls 111, 112 installed on the top of the base 40 are mixed with the bacterial bed 50 contained in the rotary treatment tank 20 and subjected to fermentation and decomposition treatment by the microorganisms in the bacterial bed 50. That is, in the bio-toilet 100 of this embodiment, a rotary treatment tank 20 is provided below the toilet bowls 111 and 112, and the human waste and other waste that falls from each of the toilet bowls 111, 112 is received in the common rotary treatment tank 20, where it is decomposed and treated by the action of microorganisms.

[0034] The base 40 is formed into a substantially rectangular or cylindrical shape consisting of a bottom portion 40a, a side portion 40b, and a top portion 40c by, for example, fastening steel plates such as stainless steel to the bottom, side, and top of a frame, and is installed on the floor inside a building 110. The top portion 40c of the base 40 has toilets 111, 112 installed thereon, and openings 41, 42 through which waste passes are provided corresponding to the openings of the toilets 111, 112. The rotary treatment tank 20 is housed inside the base 40 below the toilets 111 and 112. When carrying out the present invention, the floor inside the building 110 may form the bottom surface portion 40a of the base 40.

[0035] The bacterial bed 50 contained in the rotary treatment tank 20 is a carrier on which microorganisms attach and settle, and may be, for example, biochips such as sawdust, wood chips, bamboo chips, bamboo charcoal, charcoal, plant particles, plant powder, and other plant fragments, rice bran, rice husks, shellfish, crustaceans' shells, and other crustaceans' shells, or inorganic porous materials such as peat, vermiculite, ceramics, and plastics. Among these, wood chips such as sawdust and wood chips, which are water absorbent and allow microorganisms to grow, are preferably used. In addition, the bacterial bed 50 made of such plant materials such as sawdust after decomposition of human waste can be suitably used as a soil conditioner, fertilizer, and the like.

[0036] The rotary treatment tank 20 is cylindrical (roughly container-shaped) with an open top and a bottom, and is formed by welding together a circular flat bottom portion and a curved body portion made of a corrodible metal plate such as stainless steel. The rotary treatment tank 20 is located below the toilet bowls 111 and 112, and receives waste such as human waste excreted into the toilet bowls 111, 112 and toilet paper dropped into the toilet bowl 112. The rotary treatment tank 20 also contains a bacteria bed 50 inside, and the microorganisms in the bacteria bed 50 decompose and treat the waste that has fallen from the toilet bowls 111, 112.

[0037] In this embodiment, a circular chain 33 constituting a drive mechanism for driving the rotary processing tank 20 to rotate is attached around the entire circumference of the upper circumferential edge of the rotary processing tank 20 in the circumferential direction. The circular chain 33 forms a plurality of meshing teeth 33A at equal intervals on the circumferential surface of the rotary processing tank 20 all around, and for example, a double-sided meshing roller chain consisting of rollers, bushes, pins, inner plates, and outer plates is used. The circular chain 33 is wound around the circumference of the upper edge of the rotary processing tank 20 in a circular shape and attached to the entire circumference of the upper edge of the rotary processing tank 20. Here, a chain with attachments 33a is used, and is attached to the entire circumference of the upper edge of the rotary processing tank 20 by bolts 33b or the like. The circular chain 33 functions as a driven gear that meshes with a sprocket 32 ​​attached to the output shaft (drive shaft) 31a of the motor 31, as will be described later. In this embodiment, the circular chain 33 meshes with the sprocket 32 ​​to form meshing teeth 33A that have a greater number of teeth than the sprocket 32 ​​at equal intervals on the circumferential surface of the rotary processing tank 20 all around.

[0038] In particular, in this embodiment, the circular chain 33 uses a double-sided meshing roller chain, and thus has, in addition to the outer peripheral meshing teeth 33A that mesh with the sprocket 33, inner peripheral meshing teeth 33B that mesh with the sprocket 72 described below. The number of teeth of the outer peripheral meshing teeth 33A of the circular chain 33 is the same as the number of teeth of the inner peripheral meshing teeth 33B.

[0039] The rotary processing tank 20 has a support shaft 23 at the center of the outer bottom surface thereof, and the support shaft 23 is rotatably supported by a bearing 46 provided on the bottom surface 40 a of the base 40 . Furthermore, the rotary processing tank 20 is placed on a plurality of ball rollers 47 (for example, four provided at a predetermined equal interval) installed on the bottom surface portion 40a of the base 40, and is rotatably supported by the ball rollers 47. The ball rollers 47 are balls made of metal or the like rotatably held on a base, and the rotary processing tank 20 is rotatably supported by being placed on the balls, and a plurality of ball rollers are usually used. This enables the rotation of the rotary processing tank 20 with less load torque.

[0040] The drive mechanism that rotates the rotary processing tank 20 is composed of a motor (electric motor) 31 as a drive source connected to a power source, a sprocket 32 ​​attached to the output shaft (drive shaft) 31a of the motor 31, and a circular chain 33 attached around the entire circumference of the upper edge of the rotary processing tank 20 and meshing with the sprocket 32. As the motor 31, an induction motor (AC motor) or the like can be used, and the generated torque may be increased by appropriately combining it with a gear head (reduction mechanism). Sprocket 32 ​​is a driving gear attached to output shaft 31a of motor 31, and meshes with meshing teeth 33A on the outer periphery formed by circular chain 33 attached along the entire circumference of the upper edge of rotary treatment tank 20. Sprocket 32 ​​meshes with the outer periphery of circular chain 33 attached to the outer periphery of the upper edge of rotary treatment tank 20, and the number of teeth of sprocket 32 ​​is smaller than the number of teeth of meshing teeth 33A formed by circular chain 33 at equal pitch intervals. The motor 31 and the sprocket 32 ​​attached to the output shaft 31 a are disposed inside the base 40 and outside the rotary treatment tank 20 .

[0041] The sprocket 32 ​​and the circular chain 33, which are a pair of gears that mesh with each other, constitute a transmission mechanism that transmits the driving force from the motor 31, and the circular chain 33 is attached to the entire outer periphery of the upper edge of the rotary treatment tank 20, so that the rotation of the output shaft 31a of the motor 31 is converted into the rotation of the rotary treatment tank 20 via the sprocket 32. In other words, the sprocket 32 ​​and the circular chain 33 are reduction gears in which the sprocket 32 ​​is the driving gear (input) side and the circular chain 33 is the driven gear (output) side, and are a gear train made of circular gears with a fixed central axis, constituting a single-stage gear mechanism.

[0042] Thus, the drive mechanism for rotating the rotary processing tank 20 includes a motor 31, a sprocket 32 ​​attached to the output shaft 31a of the motor 31 and rotating integrally with the output shaft 31a by the operation of the motor 31, and a circular chain 33 attached integrally to the entire circumference of the outer periphery of the upper edge of the rotary processing tank 20, meshing with the sprocket 32 ​​and rotating with the rotation of the sprocket 32. The sprocket 32 ​​rotates due to the output of the motor 31, and the circular chain 33 meshing with the sprocket 32 ​​is attached integrally along the entire circumference of the upper edge of the rotary processing tank 20, so that the circular chain 33 and the rotary processing tank 20 that mesh with it rotate integrally with the rotation of the sprocket 32. At this time, the sprocket 32, the circular chain 33, and the rotary processing tank 20 rotate in opposite directions. The sprocket 32 ​​also meshes with the circular chain 33 attached along the entire circumference of the outer periphery of the upper edge of the rotary processing tank 20 on the outer periphery side.

[0043] In particular, the number of teeth of the meshing teeth 33A, 33B of the circular chain 33 attached along the entire outer circumferential surface of the upper edge of the rotary treatment tank 20 is larger than the number of teeth of the sprocket 32, preferably 5 to 15 times. In other words, the reference circle diameter of the circle formed by the circular chain 33 is larger than the reference circle diameter of the sprocket 32, preferably 5 to 15 times. Therefore, the torque can be increased by using a gear transmission mechanism that transmits the driving force of the motor 31 from the sprocket 32, which is a small gear, to the circular chain 33, which is a large gear, and the rotating treatment tank 20 can be rotated with little driving force, little energy consumption, and a small motor.

[0044] In the decomposition treatment apparatus 10 of this embodiment, an agitation unit 60 is provided inside the rotary treatment tank 20. The stirring section 60 stirs the bacteria bed 50 and waste in the rotary treatment tank 20 by rotating the rotary treatment tank 20, and as shown in Figures 1 to 4, for example, is composed of a vertical section 61 that is long in the vertical direction and is located approximately in the center of the rotary treatment tank 20, a horizontal section 62 that extends approximately perpendicular to the vertical section 61, i.e., in the radial direction of the rotary treatment tank 20, and is attached to the upper surface section 40c of the base section 40 by welding or the like, and a plurality of stirring blades 63 attached to the vertical section 61 and the horizontal section 62.

[0045] The shape of the stirring blade 63 is not particularly limited, and for example, as shown in Figures 1 to 4, the stirring blade 63A may be composed of a straight portion 63a extending obliquely from a horizontal portion 62 toward the bottom side of the fixed treatment tank 20 and a blade portion 63b that is continuously curved from the lower side of the straight portion 63a into a substantially L-shape with the tip bent upward so as to diagonally scoop up the bottom side of the rotary treatment tank 20; agitator blade 63B consisting of blade portion 63c with a shape like a vertical part 61; agitator blade 63C consisting of a horizontal plate 63d formed from the lower end of vertical part 61 in a direction substantially perpendicular to vertical part 61 and blade portion 63b formed from horizontal plate 63d toward the bottom side of rotary treatment tank 20 in a substantially L-shaped curve with the tip bent upward to scoop up obliquely from the bottom side of rotary treatment tank 20; and agitator blade 63D consisting of a straight part 63a extending obliquely from horizontal shaft 62 toward the bottom side of fixed treatment tank 20 and flat plate portion 63e formed from the lower end of straight part 63a in a direction substantially perpendicular to straight part 63a, inclined downward toward the tip side, and located at the corner between the inner bottom surface and the inner side surface of fixed treatment tank 20. In Figs. 1 to 4, agitator blade 63A and agitator blade 63B and agitator blade 63C and agitator blade 63D extend in opposite directions to each other with respect to horizontal part 62. The members constituting the stirring section 60 are preferably made of stainless steel material that is resistant to rust and corrosion, and the individual members are assembled by welding or joining with bolts and nuts, etc.

[0046] In particular, in the case of blade portion 63b curved in an approximately L-shape with the tip bent upward, or flat plate portion 63e inclined downward toward the tip, which scoops up (rakes up) the culture bed 50, the reaction force on the blade surface is small and the load is not easily applied, so the blade is not easily damaged or deformed.

[0047] Furthermore, the flat plate portion 63e that slopes downward toward the tip side is flat and therefore crushes and smashes moist clumps of the bacteria bed 50. That is, even if moist clumps (lumps) of the bacteria bed 50 gather in the corners between the inner bottom and inner side surfaces of the rotary treatment tank 20, the flat plate portion 63e located in the corners between the inner bottom and inner side surfaces of the fixed treatment tank 20 can crush the clumps of the bacteria bed 50, preventing a decrease in the efficiency of the decomposition treatment of waste by microorganisms. In addition, by providing multiple stirring blades 63 extending toward the bottom side of the fixed treatment tank 20 in the radial direction from the center to the end of the fixed treatment tank 20, the bacteria bed 50 and dirt in the rotary treatment tank 20 can be stirred more evenly. Therefore, the efficiency of decomposition of waste can be increased.

[0048] In addition, if multiple agitating blades extending horizontally in the radial direction of the fixed treatment tank 20 are provided in the vertical direction, they can only agitate the bacteria bed 50 to the extent that it is lifted slightly upward and then returned to its original position. However, if the agitating blade 63 extends from the horizontal section 62 extending horizontally in the radial direction of the fixed treatment tank 20 toward the bottom side of the rotary treatment tank 20 and scoops (rakes) up from the bottom side of the rotary treatment tank 20, vertical circulation is also achieved, which prevents the microorganisms at the bottom of the rotary treatment tank 20 from becoming anaerobic due to a lack of oxygen, allowing the microorganisms to more easily utilize their processing capabilities and improve the efficiency of sewage decomposition processing.

[0049] Furthermore, in the decomposition treatment device 10 of this embodiment, the stirring blade 63 is disposed near the hollow tube 81 which is disposed on the bottom side of the immobilization treatment tank 20 described below and which blows out hot air, and the bacteria bed 50 and filth scooped up by the stirring blade 63 are dispersed by the blowing pressure of the hot air from the hollow tube 81, making it difficult for lumps of the bacteria bed 50 and filth to form. This promotes the decomposition of the filth by the microorganisms in the bacteria bed 50. Furthermore, if lumps of the bacteria bed 50 and filth are unlikely to form, the reaction force on the blade surface is also small and it is difficult to apply a load to the blade surface, making it difficult for the blade to break.

[0050] However, when carrying out the present invention, the configuration of the stirring section 60 and the arrangement, number and shape of the stirring blades 63 are not limited to those described above, and the stirring blades may extend in the radial direction of the fixed treatment tank 20, i.e., in the horizontal direction. Also, the arrangement relationship between the hollow tube 81 and the stirring blades 63 does not need to be considered. The arrangement directions of the multiple stirring blades 63 relative to the horizontal section 62 may all be the same direction, or may be different directions as desired. Also, the stirring blades 63 may be directly fixed to the upper surface section 40c of the base section 40 by welding or the like, and are not limited to being arranged on the same radial line, and may be provided in multiple locations.

[0051] Thus, in the decomposition treatment device 10 of this embodiment, an agitating blade 63 is provided inside the rotary treatment tank 20, the agitating blade 63 being attached to the upper part 40c of the base 40 and extending from a horizontal part 62 that is long in the radial direction of the fixed treatment tank 20 toward the bottom side of the rotary treatment tank 20, and the position of the agitating part 60 is fixed within the rotary treatment tank 20. Therefore, as the rotary treatment tank 20 is rotated, the bacterial bed 50 and filth contained within the rotary treatment tank 20 move relative to the fixed position of the agitating blade 63, and the bacterial bed 50 and filth within the rotary treatment tank 20 are agitated by the agitating blade 63.

[0052] In the bio-toilet 100, toilet paper is also thrown into the rotary treatment tank 20 from the toilet bowl 112 along with the human waste. If the toilet paper dries out without being dissolved by the moisture in the human waste, it will remain there without being decomposed, which may cause a foul odor or reduce the efficiency of the human waste decomposition treatment by microorganisms. Therefore, in the decomposition treatment device 10 of this embodiment, the toilet paper that has fallen from the toilet bowl 112 into the rotary treatment tank 20 is quickly cut into small pieces by the cutter 73 of the cutter unit 70, so that the toilet paper can be easily broken down by moisture. In addition, the cutter 73 can also break up the bacterial bed 50 that has absorbed moisture and become lumpy.

[0053] That is, in the decomposition treatment apparatus 10 of this embodiment, a cutter unit 70 is provided inside the rotary treatment tank 20. The cutter section 70 is used to break down toilet paper that has fallen from the toilet bowl 112 into the rotary treatment tank 20 and the bacteria bed 50 that has become lumpy after absorbing moisture. In this embodiment, the cutter section 70 is made up of a sprocket 71 that is engaged with the inner circumference of the circular chain 33 attached to the upper periphery of the rotary treatment tank 20, a rotating shaft (driven shaft) 72 to which the sprocket 71 is fixed, and a plurality of chip saws ( The cutting tool is composed of a main cutter 73 consisting of a circular saw blade 73A or a metal blade 73B, a mounting plate 75 which is arranged above the sprocket 71 and has a bearing 74 fixed thereto that rotatably supports the rotating shaft 72 and is attached to the upper surface 40c of the base 40, a mounting rod 76 which is attached to the mounting plate 75 and extends downward at a direction approximately perpendicular to the mounting plate 75, and a plurality of sub-cutters 77 which are attached to the mounting rod 76 and disposed between the plurality of main cutters 73 below the sprocket 71.

[0054] The sprocket 71 is located inside the rotary treatment tank 20 and meshes with the inner meshing teeth 33B of the circular chain 33 attached to the upper peripheral portion of the rotary treatment tank 20, and has a rotating shaft 72 disposed at its center and is integrated with the rotating shaft 72. The number of teeth of the sprocket 71 of the cutter unit 70 is smaller, preferably 0.1 to 0.5 times, than the number of teeth of the circular chain 33 attached along the entire circumference of the upper edge of the rotary treatment tank 20. In other words, the reference circle diameter of the sprocket 71 is smaller, preferably 0.1 to 0.5 times, than the reference circle diameter of the circular chain 33.

[0055] The rotating shaft 72 is fixed to the sprocket 71 with a key or the like and is rotatable integrally with the sprocket 71, and below it, a plurality of main cutters 73 are attached in parallel at predetermined intervals from one another in the vertical direction. The rotating shaft 72 is rotatably supported on a bearing 74 fixed to a mounting plate 75 above the sprocket 71, which is attached to the upper surface 40c of the base 40 via a mounting member or the like (not shown), and is attached to the mounting plate 75. That is, the bearing 74 is fixed to the mounting plate 75 and rotatably supports the rotating shaft 72 .

[0056] The mounting plate 75 is disposed above the sprocket 71 and is attached and fixed to the upper surface 40c of the base 40 by a mounting member or the like (not shown), and has a bearing 74 fixed thereto for rotatably supporting the rotating shaft 72. In addition, a mounting rod 76 for mounting a sub-cutter 77 is attached to the mounting plate 75 at a position where it does not interfere with the sprocket 71. The mounting rod 76 is disposed parallel to the rotating shaft 72 and attached at its upper side to the mounting plate 75, and at its lower side, a plurality of sub-cutters 77 are attached in parallel to each other at predetermined intervals in the vertical direction.

[0057] The main cutter 73 is made of a chip saw (circular saw blade) 73A or a metal blade 73B (three blades are used in the figure) made of multiple (for example, two to eight) blades, and can break up lumps of toilet paper or bacterial bed 50. Each main cutter 73 is attached to the rotating shaft 72 so that it can rotate integrally with the rotating shaft 72 with its front and back sides facing up and down, and is disposed between the sub-cutters 77, and rotates horizontally between the sub-cutters 77 via the sprocket 32, the circular chain 33, the sprocket 71, and the rotating shaft 72 by the drive of the motor 31. Preferably, the multiple blades of the metal blade 73B are inclined with respect to the vertical rotating shaft 72. This makes it possible to speed up the movement (discharge) of the bacterial bed 50 and increase the stirring efficiency of the bacterial bed 50.

[0058] The sub-cutter 77 can also break down clumps of toilet paper or bacterial bed 50 into smaller pieces. For example, a side cutter formed into a wide plate shape toward the tip is used. It is disposed between the main cutters 73 and is attached and fixed to a mounting rod 76 attached to a mounting plate 75 with its front and back surfaces facing up and down. The members constituting the cutter section 70 are also preferably made of stainless steel material that is resistant to rust and corrosion, and the individual members are assembled by welding or joining with bolts and nuts, etc.

[0059] Thus, in the decomposition treatment apparatus 10 of this embodiment, a sprocket 71 is engaged with the inner peripheral side of the circular chain 33 attached to the upper peripheral edge of the rotary treatment tank 20, a rotating shaft 72 as a driven shaft is disposed on the sprocket 71, and a plurality of main cutters 73 are attached to the rotating shaft 72 below the sprocket 71 so as to be rotatable integrally with the rotating shaft 72. Also, a plurality of sub-cutters 77 are attached to mounting rods 76 extending from a mounting plate 75 attached to the upper surface 40c of the base 40 toward the bottom side of the rotary treatment tank 20. That is, the main cutter 73 and the sub-cutter 77 are provided at fixed positions within the rotary treatment tank 20. As a result, as the rotary treatment tank 20 is rotated, the toilet paper inserted into the rotary treatment tank 20 moves relative to the main cutter 73 and the fixed position of the main cutter 73 together with the bacterial bed 50 and human waste, causing the toilet paper in the rotary treatment tank 20 to be finely divided by the main cutter 73 and the sub-cutter 77, and also breaking up clumps of the bacterial bed 50.

[0060] In particular, in the decomposition treatment device 10 of this embodiment, a sprocket 71 is engaged with the inner peripheral side of the circular chain 33 attached to the upper peripheral edge of the rotary treatment tank 20, a rotating shaft 72 as a driven shaft is disposed on the sprocket 71, and a plurality of main cutters 73 are attached to the rotating shaft 72 below the sprocket 71 so as to be rotatable integrally with the rotating shaft 72. That is, the cutter transmission mechanism that transmits the rotation of the rotary treatment tank 20 to the main cutter 73 of the cutter unit 70 and rotates the main cutter 73 of the cutter unit 70 comprises the sprocket 71 as a cutter gear that engages with the inner peripheral surface side of the circular chain 33 provided on the upper edge of the rotary treatment tank 20, and the rotating shaft 72 to which the sprocket 71 is fixed, and the main cutter 73 of the cutter unit 70 is attached integrally to the rotating shaft 72.

[0061] Thus, when the motor 31 is driven, a rotational driving force is transmitted to the rotary treatment tank 20 around which the circular chain 33 is wound by the sprocket 32 ​​attached to the output shaft 31a serving as the drive shaft of the motor 31 and the circular chain 33 meshing with it on its outer periphery, and the rotational driving force is also transmitted to the main cutter 73 attached to the rotary shaft 72 by the sprocket 71 meshing with the inner periphery of the circular chain 33 and the rotary shaft 72 to which the sprocket 71 is fixed as a driven shaft. At this time, the circular chain 33, the rotary treatment tank 20 and the main cutter 73 rotate in the same direction.

[0062] Therefore, by rotating the main cutter 73 in the rotary treatment tank 20 together with the rotation of the rotary treatment tank 20, the toilet paper that has fallen from the toilet bowl 112 into the rotary treatment tank 20 can be more quickly broken down into small pieces. Furthermore, the bacterial bed 50 that has become lumpy due to absorption of moisture can also be broken down. Furthermore, the rotation of the main cutter 73 makes it difficult for the toilet paper to become entangled in the cutters 73, 77, so that the cutters 73, 77 are less likely to be loaded. In addition, it is also possible to promote (send out) the movement of the bacterial bed 50. In the decomposition processing device 10 of this embodiment, the driving source for rotating the main cutter 73 of the cutter section 70 is the motor 31, which is also the driving source for rotating the rotary processing tank 20. The sprocket 32 ​​and the circular chain 33 are used as a transmission mechanism for transmitting the driving force of the motor 31. Furthermore, the main cutter 73 is rotated by the transmission mechanism of the sprocket 71 meshing with the inner periphery of the circular chain 33 and its rotating shaft 72. That is, the main cutter 73 is rotated by the same driving source as the rotary processing tank 20 without using a separate driving source. Therefore, the main cutter 73 can be rotated without significantly increasing the energy consumption to more quickly break down the lumps of toilet paper and the bacterial bed 50. Since the main cutter 73 is rotated by the transmission mechanism of the sprocket 71 meshing with the inner periphery of the circular chain 33 and its rotating shaft 72, there is no risk of wearing out the rotary processing tank 20.

[0063] In addition, in the decomposition treatment device 10 of this embodiment, a mounting rod 76 is attached parallel to the rotation axis 72 of the sprocket 71 to a mounting plate 75 attached to the upper surface 40c of the base 40 above the sprocket 71 that meshes with the inside of the circular chain 33 attached to the upper peripheral portion of the rotary treatment tank 20, and a sub-cutter 77 is attached to the mounting rod 76. By arranging the sub-cutters 77 between multiple main cutters 73 in this manner, i.e. by arranging the main cutters 73 and sub-cutters 77 alternately in multiple stages in the height direction (up and down direction) of the rotary treatment tank 20, the toilet paper can be more quickly shredded and clumps of the bacterial bed 50 can be effectively broken down as it passes between the main cutter 73 and the sub-cutter 77.

[0064] In the decomposition treatment device 10 of this embodiment, two such cutter sections 70 are provided in the rotary treatment tank 20, and one cutter section 70 uses a tip saw (circular saw blade) 73A as the main cutter 73, while the other cutter section 70 uses a metal blade 73B as the main cutter 73. This makes it possible to more quickly and efficiently break down toilet paper that has fallen from the toilet bowl 112 into the rotary treatment tank 20 and bacteria bed 50 that has become lumpy after absorbing moisture. However, when implementing the present invention, the cutter section 70 may be provided in one location, or in three or more locations, and the form of the cutter is not limited to the above, as long as it can finely break down toilet paper and clumps of the bacterial bed 50. Furthermore, the configuration of the cutter section 70 is not limited to the above, and the rotational drive of the cutter may be transmitted from the motor 31 by a transmission mechanism other than the motor 31 that rotates the rotary treatment tank 20, or the cutter may not rotate.

[0065] Furthermore, in the decomposition treatment device 10 according to this embodiment, a cutter section 70 is provided in the rotary treatment tank 20 to break up toilet paper that has fallen from the toilet bowl 112 into the rotary treatment tank 20 and clumps of bacterial bed 50, and a moisture imparting device 90, which serves as a moisture imparting means, drips moisture onto the cutter section 70 and the agitator section 60, making it easier to add moisture to the toilet paper. This makes it easier for the toilet paper to unravel and less likely to remain, further preventing the generation of bad odors and a decrease in the efficiency of the decomposition treatment of waste.

[0066] That is, the decomposition treatment device 10 according to this embodiment has a moisture adding device 90 that drips water into the rotary treatment tank 20 to moisten the toilet paper that has fallen from the toilet bowl 112 into the rotary treatment tank 20, making it easier to loosen the fibers. In this embodiment, the moisture imparting device 90 is mainly composed of a tank 91 for storing water, an electromagnetic valve 92 for supplying and stopping water, a pipe 93 for directing the water from the tank 91 into the rotary treatment tank 20, and a nozzle (not shown) provided at the tip of the pipe 93 for dripping water onto the stirring blade 63, the main cutter 73, and the sub-cutter 77. The pipe 93, the nozzle, etc. are made of, for example, stainless steel, which is resistant to rust and corrosion.

[0067] In this embodiment, a control unit (not shown) is provided that opens the solenoid valve 92 by energizing the solenoid valve 92 after receiving a signal from a door opening / closing detection switch (described later) that detects the opening / closing of the door. When the use of the bio-toilet 100 is detected by the opening / closing of the door, the rotary treatment tank 20 is rotated for a predetermined time as described later, and hot air is supplied into the rotary treatment tank 20 by the hot air blower 80. After these operations are stopped, the solenoid valve 92 is opened by the control unit, water is supplied from the tank 91 to the nozzle through the pipe 93, and the water is dripped from the nozzle onto the stirring blade 63, main cutter 73, and sub-cutter 77 in the rotary treatment tank 20. This allows moisture to be added to the toilet paper, making it easier to unravel the fibers of the toilet paper. In particular, by dripping moisture onto one or more of the stirring blade 63, main cutter 73, and sub-cutter 77, which are prone to tangling the toilet paper, the toilet paper can be efficiently moistened and can be unraveled more quickly. However, when implementing the present invention, the position where the water is dripped is not particularly limited. The mixture may be dropped onto one or more of the stirring blade 63, the main cutter 73, and the sub-cutter 77, or may be dropped directly onto the culture bed 50. Normally, when a predetermined set time has elapsed since the solenoid valve 92 was opened, the control unit stops the supply of electricity to the solenoid valve 92 and closes the solenoid valve 92 .

[0068] In addition, the decomposition treatment apparatus 10 according to this embodiment has a hot air blower 80 that blows hot air to the bacterial bed 50 in the rotary treatment tank 20. The hot air blower 80 is a heating means for heating the interior of the rotary treatment tank 20 to a predetermined temperature and an air supply means for supplying air into the rotary treatment tank 20. By heating the air to be supplied into the rotary treatment tank 20 and supplying hot air into the rotary treatment tank 20, the oxygen necessary for the growth and activity of microorganisms in the rotary treatment tank 20 is supplied and the interior of the rotary treatment tank 20 is heated to a temperature suitable for the growth and activity of microorganisms.

[0069] In this embodiment, the hot air blower 80 is mainly composed of an air compressor 81, a heater 82 that heats the air blown from the air compressor 81, a pipe 83 that guides the air blown from the air compressor 81 and heated by the heater 82 into the rotary treatment tank 20, and a hollow tube 84 that is connected to the pipe 83 and arranged on the bottom side of the rotary treatment tank 20 to blow out hot air from the pipe 83. The air compressor 81 and heater 82 are arranged outside the rotary treatment tank 20. The air compressor 81 compresses the sucked air and blows it out, while the heater 82 heats the air blown out from the air compressor 81 to a temperature suitable for the growth of microorganisms (e.g., 15°C to 40°C).

[0070] Air is blown from an air compressor 81 and heated by a heater 82 and sent via a pipe 83 to a stainless steel hollow tube 84 installed horizontally on the bottom side of the rotary treatment tank 20 . The hollow tube 84 has a plurality of outlet holes 84a that open, for example, upward, sideways, or downward, and hot air sent from an air compressor 81 and heated by a heater 82 is ejected (blowed out) from the outlet holes 84a into the rotary processing tank 20 to supply air to the bacterial bed 50 in the rotary processing tank 20. The supply of hot air also heats the inside of the rotary processing tank 20. The hollow tube 84 is provided with a connection part 84b that extends upward at a substantially right angle to its length direction, and the connection part 84b is connected to the lower part of the vertical part 61 of the agitation part 60, so that the hollow tube 84 is supported by the agitation part 60 and disposed apart from the inner bottom surface of the rotary processing tank 20 without contacting it.

[0071] The shape of the hollow tube 84 is not limited to a cylindrical shape, and may be a square tube shape. The hollow tube 84 may have an inclined side surface by attaching a cover 86 or the like. In this way, even if the stirring blade 63 is disposed near the ejection hole 84a and the bacteria bed 50 or dirt is scooped up by the stirring blade 63, it becomes easier for the bacteria bed 50 or dirt to fall due to the inclined surface of the cover 86 attached to the hollow tube 84, and it is possible to prevent the bacteria bed 50 or dirt from climbing up to the hollow tube 84 and staying there, and to prevent a decrease in the decomposition efficiency. The pipe 83, the hollow tube 84, the cover 86 forming the inclined surface, and the like are made of, for example, stainless steel material that is resistant to rust and corrosion. In this embodiment, hot air is sprayed into the bacteria bed 50 from the nozzle 84a of the hollow tube 84 arranged inside and below the rotary treatment tank 20. However, when implementing the present invention, the components constituting the stirring section 60, such as the stirring blade 63, the horizontal section 62, the vertical section 61, etc., may be formed hollow and nozzles may be provided on the surrounding surfaces to supply hot air to the stirring section 60 and from the stirring section 60 into the bacteria bed 50.

[0072] Thus, in the decomposition treatment apparatus 10 according to this embodiment, hot air is supplied into the rotary treatment tank 20 by the hot air blower 80, thereby supplying oxygen necessary for the growth and activity of the microorganisms in the bacterial bed 50 in the rotary treatment tank 20 and heating the inside of the rotary treatment tank 20 to a temperature suitable for the growth and activity of the microorganisms, thereby promoting the growth and proliferation of the microorganisms in the bacterial bed 50 in the rotary treatment tank 20 and facilitating the decomposition treatment of the waste. In addition, the supply of hot air promotes the drying of the bacterial bed 50 and prevents a decrease in the efficiency of the decomposition treatment due to excess moisture.

[0073] In the bio-toilet 100 of this embodiment, the bacterial bed 50 is contained in the rotating treatment tank 20 contained in the base 40, and within the rotating treatment tank 20, the agitator 60, cutter 70, hollow tube 84, pipe 83, cover 86, pipe 93, etc. are positioned such that they cannot be seen through the openings of the toilet bowls 111, 112 installed on the upper surface 40c of the base 40, and are therefore positioned in a way that does not frighten the user. Furthermore, in the bio-toilet 100 of this embodiment, in order to prevent odors immediately after excretion from building up inside the toilet, the space within the base 40 may be ventilated, and an exhaust mechanism consisting of a duct and an exhaust fan may also be provided. The exhaust fan may be installed, for example, above the rotary treatment tank 20 and driven by a transmission mechanism linked to the rotation of the rotary treatment tank 20.

[0074] Incidentally, the bio-toilet 100 according to this embodiment is provided with a sensor (not shown) that detects when a user enters the bio-toilet 100, and when it detects that a user has entered the bio-toilet 100, it automatically drives a motor 31 that constitutes a drive mechanism that rotates the rotary treatment tub 20, thereby rotating the rotary treatment tub 20. In other words, by detecting the entry or exit of a person using the bio-toilet 100 and driving the motor 31, the rotary treatment tub 20 is rotated via a sprocket 32 ​​attached to the output shaft 31a of the motor 31 and a circular chain 33 that meshes with the sprocket and is wound around the rotary treatment tub 20.

[0075] Taking the example of detecting the entry of a user into the bio-toilet 100 by the opening and closing of doors 141, 142, the bio-toilet 100 has, for example, a door opening and closing detection switch (not shown) which is a limit switch linked to the opening and closing movements of doors 141, 142, and a control unit which, when the door opening and closing detection switch detects that the door is open, receives a signal from the door opening and closing detection switch and energizes and drives motor 31, and when the door opening and closing detection switch detects that doors 141, 142 are open or closed, the control unit drives motor 31 to rotate rotating treatment tub 20 and main cutter 73 inside rotary treatment tub 20. The control unit also receives a signal from the door opening and closing detection switch and energizes air compressor 81 and heater 82 to drive air compressor 81 and heater 82.

[0076] Furthermore, the control unit has a timer, and when a predetermined set time has elapsed since the door was opened or closed, it stops the supply of electricity to the motor 31, the air compressor 81, and the heater 82, and stops driving the motor 31, the air compressor 81, and the heater 82. The timer is a control circuit composed of, for example, a relay circuit, a sequencer, etc., and starts counting a set time in response to a detection signal from the door open / close detection switch, continues supplying electricity to the motor 31, the air compressor 81, and the heater 82 during the count, and cuts off the electricity after the set time has elapsed.

[0077] That is, when the door open / close detection switch detects the opening / closing of the doors 141, 142, the motor 31 is energized to rotate the rotary processing tank 20 and the main cutter 73 in the rotary processing tank 20, and the air compressor 81 and heater 82 are energized to supply hot air from the hot air blower 80 into the rotary processing tank 20, and at the same time, a timer starts counting. Then, after the time set on the timer has elapsed, the motor 31, air compressor 81 and heater 82 are de-energized.

[0078] In this way, by controlling the timer, electricity is continued to be supplied to the motor 31, the air compressor 81, and the heater 82 for a predetermined time, and after the set time, electricity to the motor 31, the air compressor 81, and the heater 82 is automatically cut off, thereby preventing overheating of the bacterial bed 50 in the rotary treatment tank 20 and preventing the outbreak of a fire due to overheating of the bacterial bed 50. In addition, unnecessary energy consumption can be reduced. The control unit may drive the motor 31, the air compressor 81, and the heater 82 for a certain period of time when the door open / close detection switch does not detect the opening or closing of the doors 141, 142 for a certain period of time, or at predetermined set times such as at night. This makes it possible to prevent the death of the microorganisms in the bacterial bed 50 and maintain the decomposition treatment performance for a long period of time.

[0079] In the bio-toilet 100 of this embodiment, the power source for driving the motor 31 that rotates the rotary treatment tank 20, the hot air blower 80, etc. may be an AC power source, or a power source generated by photovoltaic power generation (solar power generation) or wind power generation. By providing a private power generation facility that uses solar cells and / or a wind power generator to generate the electricity used for driving the rotation of the rotary treatment tank 20 and for blowing and heating the hot air blower 80, there is no need for power supply work for the ancillary equipment, and installation is possible in locations where power cannot be supplied. In other words, when the electricity used by the bio-toilet 100 is generated by solar cells and / or a wind power generator, it is possible to reduce the installation costs of the bio-toilet 100 compared to cases where there is no power supply facility and power supply work must be carried out from a long distance, and further, because no power supply work is required, the bio-toilet 100 can be installed in locations where it is difficult to carry out power supply work. A power generation system that combines solar cells and wind power generators provides a more stable power supply. Also, if the electricity generated by the solar cells or wind power generators is charged into a storage battery, the rotating treatment tank 20 and other components can be driven by discharging electricity from the storage battery even at night or when there is no wind, making it possible to more stably decompose human waste.

[0080] In particular, in this embodiment, the rotary treatment tank 20 is rotated by a single motor 31 through a gear transmission mechanism made of a sprocket 32 ​​attached to the output shaft 31a of the motor 31 and a circular chain 33 having meshing teeth 33A formed around the entire circumferential surface of the rotary treatment tank 20 and having a greater number of teeth than the sprocket 32 ​​and at equal pitch intervals. The main cutter 73 is also rotated by the gear transmission mechanism made of the circular chain 33 and the sprocket 71. This achieves energy savings by generating large torque with little electricity in the rotary treatment tank 20 that contains the bacterial bed 50, and therefore allows the solar power generation or wind power generation system to be small in scale.

[0081] Thus, in the bio-toilet 100 according to this embodiment, when opening or closing of the doors 141, 142 of the bio-toilet 100 is detected in order to use the bio-toilet 100, the motor 31 in the decomposition treatment device 10 is driven, and the rotary treatment tank 20 is rotated via a sprocket 32 ​​attached to the output shaft 31a of the motor 31 and a circular chain 33 that meshes with the sprocket 32 ​​and is formed around the entire circumference of the upper edge of the rotary treatment tank 20. Furthermore, a main cutter 73 of a cutter unit 70 provided in the rotary treatment tank 20 is rotated via a sprocket 71 that meshes with the circular chain 33 inside the rotary treatment tank 20 and its rotary shaft 72. Furthermore, an air compressor 81 and a heater 82 of a hot air blower 80 are driven, and hot air is supplied into the rotary treatment tank 20.

[0082] Therefore, the human waste and toilet paper that have fallen into the rotary treatment tank 20 from the toilet bowls 111, 112 installed on the upper surface 40c of the base 40 move together with the bacterial bed 50 contained therein as the rotary treatment tank 20 rotates under the driving force of the motor 31, and are agitated together with the bacterial bed 50 by the agitation unit 60 at a fixed position in the rotary treatment tank 20. This promotes the decomposition of the human waste and toilet paper waste by the microorganisms that have attached to and settled on the bacterial bed 50. That is, when the rotary treatment tank 20 rotates, the bacterial bed 50 containing the microorganisms and the waste in the rotary treatment tank 20 also rotate, and the bacterial bed 50 and the waste are relatively agitated by the agitation blades 63 of the agitation unit 60 fixed in the rotary treatment tank 20. This agitation promotes uniform mixing and dispersion of the bacterial bed 50 containing the microorganisms and the waste, and also supplies air (oxygen) necessary for the growth and activity of the microorganisms. This promotes the fermentation and decomposition of the waste by the microorganisms.

[0083] At this time, hot air is supplied into the rotary treatment tank 20 by the hot air generator 80, so that air (oxygen) is supplied into the bacterial bed 50 contained in the rotary treatment tank 20, and the bacterial bed 50 is further heated, which makes it easier for microorganisms to grow and multiply, and further promotes the decomposition of waste by the microorganisms. That is, when it is detected that a user of the bio-toilet 100 has opened and closed doors 141, 142 to enter the room, motor 31 is started and simultaneously air compressor 81 and heater 82 are driven to blow hot air from each of the outlet holes 84a of hollow tubes 84 disposed on the bottom side of the rotary treatment tank 20 towards the bacterial bed 50 in the rotary treatment tank 20. This supplies air (oxygen) necessary for the growth and activity of microorganisms and heats the temperature to a level suitable for the growth and activity of microorganisms, further accelerating the decomposition of waste by the microorganisms. It also promotes the drying of the bacterial bed 50 and prevents a decrease in the efficiency of the decomposition process due to excess moisture.

[0084] Furthermore, the cutter section 70 is provided at a fixed position in the rotary treatment tank 20, so that the toilet paper and the bacteria bed 50 that has become a mass containing moisture are broken down into small pieces by the main cutter 73 and the sub cutter 77 of the cutter section 70. At this time, the main cutter 73 is attached to the rotating shaft 72 of the sprocket 71 that meshes with the circular chain 33 provided around the upper edge of the rotary treatment tank 20 on its inner periphery, so that the main cutter 73 rotates together with the rotation of the rotary treatment tank 20 by the drive of the motor 31. Therefore, the toilet paper and the bacteria bed 50 can be broken down into small pieces more quickly by the rotation of the main cutter 73. Furthermore, after the rotation drive of the rotary treatment tank 20 and the main cutter 73 and the drive of the hot air blower 80 are stopped, the solenoid valve 92 of the moisture imparting device 90 opens, and water droplets are supplied to the bacteria bed 50, specifically, to the stirring blade 63, the main cutter 73, and the sub cutter 77, so that the toilet paper becomes more easily moist. Therefore, the toilet paper can be unraveled more quickly.

[0085] Therefore, according to the decomposition treatment device 10 of this embodiment, toilet paper put into the rotary treatment tank 20 can be quickly broken down into small pieces and decomposed before it dries, effectively preventing the generation of bad odors and a decrease in the efficiency of the decomposition treatment due to remaining toilet paper. The decrease in the efficiency of the decomposition treatment can also be prevented by breaking up the bacteria bed 50 that has absorbed moisture and become lumpy.

[0086] As mentioned above, the control unit, which receives a signal from the sensor that detects the opening and closing of the doors 141, 142 of the bio-toilet 100 and controls the motor 31, air compressor 81, heater 82, solenoid valve 92, etc., is equipped with a timer and is set to stop operating these devices after a predetermined time has elapsed. That is, the motor 31, air compressor 81, heater 82, solenoid valve 92, etc. stop after operating for the time set by the timer from the initial start of opening and closing the doors 141, 142 of the bio-toilet 100. Note that the timer-set stop times for the operation of the motor 31, air compressor 81, heater 82, and solenoid valve 92 may be the same or different.

[0087] Furthermore, for example, even if the timer for heater 82 is counting, if the temperature reaches or exceeds a predetermined temperature based on measurement by a temperature sensor installed in rotary processing tank 20, the power to heater 82 may be cut off to prevent overheating. Typically, the motor 31, air compressor 81, heater 82, solenoid valve 92, etc. are set to automatically operate when it is detected that a user has entered the toilet, or to operate automatically at a specified time, or can be operated by the manager manually operating the power switch of each device. When the bio-toilet 100 has not been used for a long period of time and the decomposition treatment device 10 has not been operated for a long period of time, it is preferable to operate the decomposition treatment device 10 periodically. This prevents the microorganisms in the bacterial bed 50 in the rotating treatment tank 20 from dying out and the decomposition treatment capacity from decreasing. At this time, the manager of the bio-toilet 100 may operate the decomposition treatment device 10 periodically, or the control unit may control the motor 31, etc. to be energized and operated at regular intervals.

[0088] In this way, in the bio-toilet 100 of this embodiment, the rotary treatment tank 20 rotates by driving the motor 31 for a predetermined time after the doors 141, 142 are opened, and the human waste and toilet paper that fall into the rotary treatment tank 20 from the openings of the toilet bowls 111, 112 through the openings 41, 42 of the base 40, and the bacterial bed 50 contained in the rotary treatment tank 20 are agitated by the agitating blades 63 located in a fixed position within the rotary treatment tank 20, and hot air is supplied to the bacterial bed 50 in the rotary treatment tank 20 by driving the air compressor 81 and heater 82 of the hot air blower 80.

[0089] Therefore, by agitating the filth with the agitating blades 63 and supplying hot air into the bacteria bed 50 with the hot air blower 80, air (oxygen) is supplied to the microorganisms in the bacteria bed 50 in the rotary treatment tank 20, accelerating the decomposition of the filth by the microorganisms. Furthermore, by supplying hot air into the rotary treatment tank 20 with the hot air blower 80 and by the heat generated by the decomposition of the filth by the microorganisms, the temperature of the bacteria bed 50 in the rotary treatment tank 20 becomes suitable for the growth of the microorganisms, further accelerating the decomposition of the filth by the microorganisms. In addition, the generation of odors due to excess moisture can be prevented.

[0090] Thus, in the decomposition treatment device 10 of this embodiment, an environmental condition in which microorganisms can grow actively is maintained in the rotary treatment tank 20, and the human waste that falls from the toilet bowls 111, 112 into the rotary treatment tank 20 is decomposed into carbon dioxide gas and water by the microorganisms in the bacterial bed 50 in the rotary treatment tank 20. The moisture generated by the decomposition evaporates due to the fermentation heat of the microorganisms, drying by hot air, etc. At this time, the decomposition of the human waste is promoted by the microorganisms inoculated in the bacterial bed 50 as well as the microorganisms such as intestinal bacteria in the feces. In addition, the bacterial bed 50 containing the residue of the human waste decomposed by the fermentation of the microorganisms is easily killed by the heat generated during the fermentation process of the microorganisms, and can be suitably used as a fertilizer or soil improvement material containing nitrogen, phosphorus, potassium, organic matter, etc. That is, the decomposition treatment of the human waste by the microorganisms can be maintained by simply periodically adding microorganisms to the bacterial bed 50 or replacing the bacterial bed 50, and the bacterial bed 50 containing the residue after the decomposition treatment can be used as a fertilizer or soil improvement material, which is environmentally friendly.

[0091] In addition, as the motor 31 drives the rotary treatment tank 20 to rotate, the toilet paper is finely chopped by the main cutter 73 and sub cutter 77, which are fixed in the rotary treatment tank 20. In particular, as the motor 31 drives the rotary treatment tank 20 to rotate, the main cutter 73 also rotates at the same time, allowing the toilet paper and clumps of the bacterial bed 50 to be finely chopped more quickly. Furthermore, after the doors 141, 142 of the bio-toilet 100 are opened, the rotary treatment tank 20 and main cutter 73 are rotated for a predetermined time, and the hot air blower 80 is driven, and after these drives are stopped, the solenoid valve 92 of the moisture imparting device 90 opens, allowing water from the tank 91 to drip onto the stirring blade 63, main cutter 73, and sub-cutter 77, imparting water from the tank 91 to the toilet paper in addition to the moisture from the human waste. This allows the toilet paper to unravel more quickly. Therefore, it is possible to prevent toilet paper from remaining behind, and effectively prevent the generation of bad odors and a decrease in the efficiency of decomposition processing.

[0092] In the decomposition treatment device 10 of this embodiment, the bacterial bed 50 containing the microorganisms is accommodated in the bottomed cylindrical rotary treatment tank 20, which is rotated about a virtual central axis in the vertical direction to agitate the bacterial bed 50 and the human waste fed therein by the microorganisms. This causes the stirring blades 63 at fixed positions in the rotary treatment tank 20 to stir the bacterial bed 50 and human waste in the rotary treatment tank 20. Since the stirring blades 63 themselves are not rotated, and the stirring blades 63 are not rotated on a rotating table that is driven to rotate by a rotating shaft, the rotary treatment tank 20 only needs to be widened in the width direction (diameter direction of the cylinder) to ensure an internal volume that can accommodate a predetermined amount of bacterial bed 50 to obtain a predetermined decomposition treatment capacity, and the height of the rotary treatment tank 20 is not required. That is, in a device that rotates the impeller itself around a horizontal axis, the height of the treatment tank is required to rotate the impeller, and in a device that rotates the impeller extending in the horizontal direction, a load torque is applied to the impeller disposed in the bacterial bed 50, requiring a large driving force, so that in order to obtain a predetermined decomposition processing capacity, it is preferable to increase the height rather than the width of the treatment tank in order to ensure a predetermined internal volume for accommodating the bacterial bed 50. In contrast, in the decomposition processing device 10 of this embodiment, since the rotary treatment tank 20 itself is rotated, the internal volume for accommodating a predetermined amount of bacterial bed 50 to obtain a predetermined decomposition processing capacity can be ensured by making the rotary treatment tank 20 wider without increasing its height. Furthermore, since the rotary processing tank 20 is not placed on a rotating table that is rotated by a rotating shaft and is not rotated, and there is no need for a rotating table that is rotated by a rotating shaft or a means for attaching and detaching the rotary processing tank 20 to the rotating table, the number of parts can be reduced, and an energy-saving design can be implemented, resulting in lower costs.

[0093] Therefore, a low-floor design can be used, with the installation surface of toilet bowls 111, 112 not being too high above the ground on which bio-toilet 100 is installed, making it possible to easily and smoothly enter and exit bio-toilet 100. This reduces the burden on users and meets the demand for a barrier-free design with fewer steps. In addition, because the overall height of bio-toilet 100 can be made relatively low, when it is transported by truck to the installation site, it can pass through tunnels with low height restrictions even if placed upright on the truck's loading platform, making it possible to reduce transportation costs. In other words, it is possible to keep the transport height within the legal loading dimensions of the truck while still ensuring a specified processing capacity. Furthermore, by making the rotating treatment tank 20 wider, as described above, a urinal 111 and a Western-style toilet 112 can be provided in the bio-toilet 100, and the waste excreted into them can be received in the common rotating treatment tank 20 and decomposed by the microorganisms in the bacterial bed 50 of the rotating treatment tank 20.

[0094] In particular, in the decomposition treatment device 10 of this embodiment, a circular chain 33 is attached to the entire circumference of the upper edge of a bottomed cylindrical rotary treatment tank 20 that contains a bacterial bed 50 containing microorganisms and in which the input human waste is decomposed by the microorganisms, and a sprocket 32 ​​having a number of teeth smaller than that of the circular chain 33 is engaged with the circular chain 33, and the sprocket 32 ​​is attached to a drive shaft 31a of a motor 31. Thus, the rotary treatment tank 20 can be rotated with a small power or electricity of the motor 31 by a gear transmission mechanism that transmits the driving force of the motor 31 from the sprocket 32, which is a small gear, to the circular chain 33, which is a large gear. In other words, the rotary treatment tank 20 can be rotated with little energy consumption, thereby saving energy and reducing operating costs. Furthermore, a gear transmission mechanism that transmits the driving force of the motor 31 using a circular chain 33 attached around the entire circumferential surface along the circumference of the upper edge of the rotary treatment tank 20 and a sprocket 32 ​​that meshes with the outer periphery of the circular chain 33 and has fewer teeth than the circular chain 33 has a simple configuration and requires fewer parts, so that manufacturing costs can be kept low.

[0095] Furthermore, such a bio-toilet 100 can decompose waste matter placed into the rotating treatment tank 20 by the microorganisms in the bacteria bed 50 inside the rotating treatment tank 20, and does not require pumping or flushing, so it is ideal for installation and use at various building construction sites, civil engineering work sites, riverbanks, outdoor event and festival venues, and the like. It can also be ideally installed in places without running water or sewage systems, such as evacuation shelters in disaster areas where the water supply and sewage systems and septic tanks have been damaged by an earthquake or the like, as temporary work toilets installed at construction sites deep in the mountains, mountain huts in high altitudes, and places where the amount of water available for use is limited, such as vehicles, aircraft, and ships. In particular, when the electricity used by the bio-toilet 100 is generated by solar cells or a wind turbine, no power supply construction work is required, so the bio-toilet 100 can be installed in locations where it is difficult to perform power supply construction work, such as seaside parks on sandy beaches or islands, or mountain parks on mountains or plateaus. Of course, when implementing the present invention, an AC power source may be used, or a power source such as an AC power source or a power source generated by solar power or wind power may be selectable.

[0096] As explained above, the organic matter decomposition treatment device 10 of the above embodiment comprises a bottomed cylindrical rotary treatment tank 20 that contains a bacterial bed 50 and into which sewage is fed as the material to be treated, an agitation section 60 that is provided inside the rotary treatment tank 20 and agitates the bacterial bed 50 and sewage, a motor (electric motor) 31 as a drive source for rotating the rotary treatment tank 20, a sprocket 32 ​​as a gear attached to the output shaft (drive shaft) 31a of the motor 31 as the drive source, and meshing teeth 33A formed by a circular chain 33 provided on the circumferential surface of the rotary treatment tank 20 that mesh with the sprocket 32 ​​and have a greater number of teeth than the sprocket 32 ​​at equal pitch intervals around the entire circumference of the circumferential surface of the rotary treatment tank 20.

[0097] Therefore, according to the organic matter decomposition treatment device 10 of the above embodiment, a sprocket 32 ​​attached to the output shaft 31a of a motor 31, which is a driving source for rotating the bottomed cylindrical rotary treatment tank 20 that contains a bacterial bed 50 and into which organic matter such as sewage is poured, is engaged with meshing teeth 33A of a circular chain 33 that is provided on the circumferential surface of the rotary treatment tank 20 at equal pitch intervals around the entire circumference thereof, the number of teeth of which is greater than the number of teeth of the sprocket 32. Therefore, the driving force of the motor 31 is transmitted to the rotary treatment tank 20 by a gear transmission mechanism consisting of a sprocket 32 ​​attached to the output shaft 31a of the motor 31 and an annular chain 33 arranged in an annular shape on the circumferential surface of the rotary treatment tank 20 and having meshing teeth 33A with a larger number of teeth than the sprocket 32. Therefore, the rotary treatment tank 20 can be rotated with a small driving force of the motor 31 and with little energy consumption, and the bacterial bed 50 and human waste in the rotary treatment tank 20 are agitated by the agitator blades 63 of the agitator unit 60 provided in the rotary treatment tank 20 due to the rotation of the rotary treatment tank 20. Therefore, the rotary treatment tank 20 can be rotated with a small driving force and electricity, and the bacterial bed 50 and human waste in the rotary treatment tank 20 can be agitated by the agitator unit 60 due to the rotation of the rotary treatment tank 20. This allows energy saving and cost reduction.

[0098] Furthermore, by rotating the rotary treatment tank 20, the bacteria bed 50 and sewage are agitated by the agitation section 60 at a fixed position within the rotary treatment tank 20, so that the height of the rotary treatment tank 20 can be reduced, and the height of the installation surface of the toilets 111, 112 installed on the rotary treatment tank 20 can be reduced, making it possible to accommodate barrier-free designs that do not require the installation of stairs or other access points.

[0099] In addition, according to the above embodiment of the organic matter decomposition treatment device 10, the meshing teeth 33A are formed by a circular chain 33 attached along the entire circumference of the circumferential surface of the rotary treatment tank 20, and the gears that mesh with the meshing teeth 33A are formed by a sprocket 32.Since the circular chain 33 can be attached simply by adjusting the length of the chain to correspond to the circumference of the rotary treatment tank 20, it is easy to obtain one that corresponds to the circumference of the rotary treatment tank 20.

[0100] Furthermore, if a chain is used, by using a double-sided meshing type, meshing teeth 33A on the outer circumferential surface side with sprocket 32 ​​constitutes a transmission mechanism that transmits the driving force of motor 31 to rotary treatment tank 20, while meshing teeth 33B on the inner circumferential surface side with a separate sprocket (pinion) 71 enables rotation of main cutter 73, which is disposed in rotary treatment tank 20 and attached to rotating shaft 72 of sprocket (internal gear) 71, for finely breaking down clumps of toilet paper and bacterial bed 50, as rotary treatment tank 20 rotates. Therefore, it is possible to improve decomposition performance with low power and low energy.

[0101] According to the organic matter decomposition treatment device 1 of the above embodiment, furthermore, since cutters 73, 77 are provided inside the rotary treatment tank 20, in the bio-toilet 100, lumps (clumps) of toilet paper and bacteria bed 50 that are put into the rotary treatment tank 20 together with human waste can be broken down into smaller pieces by the main cutter 73 and sub-cutter 77. This makes it possible to prevent the generation of bad odors due to residual toilet paper and clumps of bacteria bed 50, and to prevent a decrease in the efficiency of decomposition treatment.

[0102] According to the organic matter decomposition treatment device 1 of the above embodiment, further, as a cutter transmission mechanism for transmitting the rotation of the rotary treatment tank 20 to the main cutter 73 and rotating the main cutter 73, there is provided a sprocket 71 as a cutter gear that meshes with the inner surface side of the circular chain 33 attached around the entire circumference of the circumferential surface of the upper edge part of the rotary treatment tank 20, and a rotating shaft 72 to which the sprocket 71 as a cutter gear is fixed and to which the main cutter 73 is attached.

[0103] That is, according to the above embodiment of the organic matter decomposition treatment device 1, the meshing teeth 33A are formed by a circular chain 33 attached along the entire circumference of the circumferential surface of the rotary treatment tank 20, and the gear that meshes with the meshing teeth 33A is formed by a sprocket 32 ​​that meshes with the outer periphery of the circular chain 33, and the cutter section transmission mechanism that transmits the rotation of the rotary treatment tank 20 to the main cutter 73 of the cutter section 70 and rotates the main cutter 73 of the cutter section 70 consists of a sprocket 71 as a cutter gear that meshes with the meshing teeth 33B on the inner periphery of the circular chain 33 provided around the upper edge of the rotary treatment tank 20, and a rotating shaft 72 to which the sprocket 71 is fixed, and the main cutter 73 is attached integrally to the rotating shaft 72.

[0104] Therefore, the main cutter 73 can be rotated by the motor 31, which is a common drive source for the rotational drive force of the rotary treatment tank 20, and thus lumps of toilet paper and bacterial bed 50 can be broken down more quickly without consuming additional energy. In particular, the main cutter 73 is rotated by the sprocket 71, which serves as a cutter gear that meshes with the meshing teeth 33B on the inner peripheral surface side of the circular chain 33, and the rotating shaft 72 to which the sprocket 71 is fixed, and therefore the rotation mechanism that rotates the main cutter 73 is also simply configured and requires a small number of parts.

[0105] However, when carrying out the present invention, the present invention is not limited to rotating the main cutter 73 by the gear mechanism of the meshing teeth 33B formed at equal intervals all around the circumference of the circumferential surface of the rotary processing tank 20 and the sprocket 71 meshing therewith, and the rotation of the rotary processing tank 20 may be transmitted to the cutter section 70 by another mechanism. For example, the meshing teeth 33A formed at equal intervals all around the circumference of the rotary processing tank 20 may be provided around the bottom side of the rotary processing tank 20, and the rotation of the rotary processing tank 20 may be transmitted to the cutter section 70 by a belt and pulley that contact the inner peripheral surface of the upper side of the rotary processing tank 20, so that the cutter section 70 rotates as the rotary processing tank 20 rotates.

[0106] Alternatively, the driving force of the motor 31 may be transmitted to the cutter unit 70 by a different transmission mechanism. For example, as shown in Fig. 5, a sprocket 78 having a greater number of teeth than the sprocket 31 attached to the output shaft 31a of the motor 31 may be attached to the output shaft 31a on top of the sprocket 31 attached to the output shaft 31a, and a chain 79 may be stretched between the sprocket 78 and the sprocket 71 of the cutter unit 70, thereby transmitting driving force from the output shaft 31a of the motor 31 via the sprocket 78, the chain 79, and the sprocket 71 to the main cutter 73 to rotate the main cutter 73. In this way, when the driving force of the motor 31 is transmitted to the rotation of the main cutter 73 by a sprocket 78 attached to the output shaft 31a of the motor 31, a sprocket 71 having fewer teeth than the sprocket 78, and a chain 79 stretched between them, the rotation speeds of the rotary treatment tank 20 and the main cutter 73 can be made different, and in particular, the rotation speed of the main cutter 73 can be made faster than the rotation speed of the rotary treatment tank 20, making it possible to more quickly and finely break down the lumps of toilet paper and bacterial bed 50. It is also possible to move (send out) the bacterial bed 50 faster.

[0107] According to the organic matter decomposition processing device 1 of the above embodiment, the device further includes a moisture applying device 90 as a moisture applying means for dripping moisture onto the agitation section 60 and / or the cutters 73, 77 of the cutter section 70, so that the toilet paper can be easily unraveled by adding moisture to it. This can further prevent the generation of bad odors due to remaining toilet paper and the decrease in the efficiency of the decomposition processing. In particular, by dripping moisture onto the agitation section 60 and / or the cutters 73, 77 of the cutter section 70, where toilet paper is likely to become tangled, moisture can be efficiently added to the toilet paper.

[0108] According to the organic matter decomposition treatment apparatus 1 of the above embodiment, the bottom of the rotary treatment tank 20 is rotatably supported by the ball rollers 47, so that the load torque of the rotary treatment tank 20 can be reduced. Therefore, the rotary treatment tank 20 can be rotated with less driving force, less power, and less energy consumption, thereby achieving further energy savings.

[0109] In carrying out the present invention, the rollers are not limited to the ball rollers 47, and as long as they can rotatably support the rotary processing tank 20, an annular rotor 48 may be used, as shown in FIG. 6. The annular rotor 48 is configured such that a plurality of bearings (not shown) are arranged in an annular manner and housed in a substantially rectangular space between an upper annular member 48a having a substantially L-shaped cross section and a lower annular member 48b having a substantially L-shaped cross section, and the upper annular member 48a is rotatable relative to the lower annular member 48b. For example, Mawar (registered trademark) manufactured by Osaka Taiyu Co., Ltd. may be used as the annular rotor 48. By placing an annular rotor 48 on the bottom surface 40a of the base 40, and then placing the rotary processing tank 20 on the annular rotor 48, and rotatably supporting the rotary processing tank 20 by the annular rotor 48, the rotary processing tank 20 can be rotated with less load torque. Therefore, the rotary processing tank 20 can be rotated with less driving force, power, and energy consumption, thereby achieving further energy savings. The rotor 48 may be a circular turntable.

[0110] Furthermore, according to the organic matter decomposition treatment device 1 of the above embodiment, the stirring blades 63 of the stirring section 60 extend from the top side of the rotary treatment tank 20 toward the bottom side inside the rotary treatment tank 20, and the tip side of the blades is shaped to scoop up the bacteria bed 50 and dirt inside the rotary treatment tank 20, resulting in good stirring efficiency. This makes it possible to increase the efficiency of decomposition treatment and also to achieve energy savings.

[0111] Furthermore, when carrying out the present invention, as shown in Fig. 6, a stirring rod 69 extending approximately horizontally in the radial direction of the rotary treatment tank 20 may be provided on the inner bottom surface side of the rotary treatment tank 20. This can enhance the stirring effect of the bacteria bed 50 and the waste. The stirring rods 69 are made of a generally rectangular columnar material such as stainless steel, and are fixed to the inner bottom surface of the rotary treatment tank 20 by welding or the like, and are arranged, for example, in a generally straight line, generally cross, radial shape, etc. This increases the stirring efficiency around the imaginary central axis of the rotary treatment tank 20, and improves the overall stirring efficiency of the bacteria bed 50 and filth. The stirring efficiency can be further increased by providing an inclined surface on the stirring rods 69.

[0112] In the above embodiment, the stirring blade 63 of the stirring unit 60 provided inside the rotary processing tank 20 is attached and fixed to the upper surface 40c of the base 40 via the horizontal portion 62, and is provided at a fixed position inside the rotary processing tank 20, but is not fixed to the rotary processing tank 20 and is not moved by the rotation of the fixed processing tank 20. However, when implementing the present invention, like the above-mentioned main cutter 73, the stirring blade 63 may be rotated or swung at a fixed position inside the rotary processing tank 20 in accordance with the rotation of the rotary processing tank 20, or the stirring blade 63 may be moved (rotated) around the virtual central axis of the rotary processing tank 20 at a rotation speed different from that of the rotary processing tank 20.

[0113] In the above embodiment, the circular chain 33 is attached to the circumferential surface of the upper edge of the rotary treatment tank 20, but when implementing the present invention, it is not limited to the upper edge as long as it is on the circumferential surface of the rotary treatment tank 20, and it may be on the bottom side (lower side) of the outer peripheral surface, the upper side, or an intermediate part thereof, or it may be on the bottom side (lower side) of the inner peripheral surface, the upper side, or an intermediate part thereof.

[0114] However, when the circular chain 33 is attached to the circumferential surface of the upper edge of the rotary treatment tank 20, a sprocket 71 is engaged with the inner peripheral surface of the circular chain 33, and a main cutter 73 is attached to the rotating shaft 72 of the sprocket 71, so that the main cutter 73 can be rotated together with the rotation of the rotary treatment tank 20 by the driving force of the motor 31, which is a common driving source, and therefore it becomes possible to more quickly and finely chop the lumps of toilet paper and bacterial bed 50 put into the rotary treatment tank 20. Also, because the gear transmission mechanism that rotates the main cutter 73 is in a form in which the sprocket 71 is engaged with the inner peripheral surface of the circular chain 33, there is no risk of wearing down the rotary treatment tank 20, etc.

[0115] In the above embodiment, the circular chain 33 is attached to the circumferential surface of the upper edge of the rotary processing tank 20, and meshes with the sprocket 32 ​​as a gear attached to the output shaft 31a of the motor 31 as the drive source, forming meshing teeth 33A arranged in a ring shape on the circumferential surface of the rotary processing tank 20 at equal pitch intervals and with a greater number of teeth than the sprocket 32, but when implementing the present invention, the meshing teeth 33A may be formed by attaching a ring-shaped gear to the circumferential surface of the rotary processing tank 20. In this case, a gear that meshes with the ring-shaped gear provided on the circumferential surface of the rotary processing tank 20 is attached to the output shaft 31a of the motor 31 as the drive source.

[0116] In the above embodiment, the hot air blower 80 is used as a heating means to supply hot air to the bacteria bed 50 in the rotary processing tank 20, thereby heating the bacteria bed 50 in the rotary processing tank 20 to a predetermined temperature (for example, 30°C to 40°C) at which microorganisms are active. However, when the present invention is implemented, the heating means is not limited to the hot air blower 80 as long as the bacteria bed 50 in the rotary processing tank 20 can be heated to a predetermined temperature. For example, a heating medium such as a heater, a planar heating element, an electric heating wire, or hot water may be provided in the rotary processing tank 20 or its periphery, or in the stirring section 60, or the rotary processing tank 20 may be heated by supplying hot water. In addition, a heat insulating material may be provided in the rotary processing tank 20 to enhance the heat retention effect. A temperature sensor may be provided to control the heating so as to prevent overheating. However, when the present invention is implemented, the heating means may be omitted. In the above embodiment, air (oxygen) is supplied to the bacterial bed 50 in the rotary treatment tank 20 by blowing hot air, but this may be omitted when implementing the present invention. Furthermore, when implementing the present invention, it is possible to omit the cutter unit 70.

[0117] The bio-toilet 100 of the above embodiment is provided with a toilet bowl 111 for men to use and a Western-style toilet bowl 112, and waste excreted in the toilet bowl 111 for men to use and the Western-style toilet bowl 112 is collected in a common rotary treatment tank 20, thereby saving space. However, when implementing the present invention, the toilet bowls 111 and 112 may be collected in separate rotary treatment tanks 20. In addition, the bio-toilet 100 of the above embodiment is provided with a toilet bowl 111 for men to use and a Western-style toilet bowl 112, but the present invention is not limited to this, and may include only one toilet bowl, three or more toilet bowls, or Japanese-style toilet bowls. The building 110 may be an industrial product manufactured in a factory and transported to the installation site in an assembled state, or it may be assembled at the installation site and the decomposition treatment device 10 may be incorporated therein. In addition, in the above embodiment, the rotary treatment tank 20 is described as being made of steel such as stainless steel, but when implementing the present invention, the constituent material is not particularly limited, and it may be made of wood, plastic, etc.

[0118] The bio-toilet 100 in the above embodiment is a relatively large one that is mainly installed outdoors and is intended for use by an unspecified number of people, but when implementing the present invention, it is assumed that it will be used indoors in the home, and it can also be applied to a portable bio-toilet. This portable bio-toilet is used, for example, in homes with people who need care or who have difficulty walking independently, such as the elderly, and is installed in the living room or bedroom of the person who needs care, and is suitable for situations where the person is unable to go to the toilet when going to sleep, or where it takes a long time to get to the toilet because they use a walking stick, etc. A portable bio-toilet that decomposes human waste using microorganisms eliminates the need for caregivers to dispose of human waste, reducing the burden on the caregiver.

[0119] In addition, in the above embodiment, the organic matter decomposition treatment device of the present invention has been described as being applied to the bio-toilet 100 and used as a human waste decomposition treatment device; however, when implementing the present invention, it can also be applied to food waste treatment machines for general residential or commercial use, and used as a decomposition treatment device that uses microorganisms to decompose and treat organic waste such as food waste. In carrying out the present invention, the configuration, material, size, connection relationship, and the like of other parts of the organic matter decomposition treatment device are not limited to those in the above-described embodiment. [Explanation of symbols]

[0120] 10. Organic matter decomposition treatment equipment 20 Rotating treatment tank 31 Motor (drive source) 31a Output shaft 33 Circular Chain 33A Meshing teeth 32 Sprocket (gear) 47 Ball Roller 60 Stirring section 73 Main Cutter 77 Sub-cutter 71 Sprocket (gear for cutter) 72 Rotating shaft (rotating shaft for cutter) 90 Moisture supplying device (moisture supplying means)

Claims

1. a cylindrical rotary treatment tank with a bottom that contains a bacterial bed and into which the material to be treated is introduced; A stirring unit provided inside the rotary treatment tank for stirring the culture bed and the material to be treated; a drive source for rotating the rotary processing tank; A gear attached to an output shaft of the drive source; a pair of meshing teeth provided on the circumferential surface of the rotary treatment tank at equal intervals over the entire circumference thereof, the meshing teeth being in mesh with the gear and having a greater number of teeth than the gear; A cutter provided inside the rotary processing tank; a cutter transmission mechanism that transmits the rotation of the rotary processing tank to the cutter; Equipped with the meshing teeth are formed by a circular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, and the gear is formed by a sprocket that meshes with the outer circumferential surface side of the circular chain, the cutter transmission mechanism includes a cutter gear that meshes with the inner peripheral surface of the circular chain provided on the upper edge of the rotary processing tank, and a cutter rotation shaft to which the cutter gear is fixed; 4. An organic matter decomposition treatment device, comprising: a rotary shaft; and a cutter attached to the rotary shaft.

2. 2. The organic matter decomposition treatment apparatus according to claim 1, further comprising a moisture supplying means for dripping moisture onto said stirring section and / or said cutter.

3. 2. The organic matter decomposition treatment apparatus according to claim 1, wherein the bottom of the rotary treatment tank is rotatably supported by rollers or a rotor.

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