Organic matter decomposition treatment device

Abstract

To achieve energy saving.SOLUTION: An organic matter decomposition treatment device 10 comprises: a bottomed cylindrical rotary treatment tank 20 that houses a fungal bed 50 and receives excrement as a material to be treated; a stirring unit 60 that is provided inside the rotary treatment tank 20 and stirs the fungal bed 50 and excrement; a motor (electric motor) 31 as a drive source that rotationally drives the rotary treatment tank 20; a sprocket 32 as a gear that is attached to an output shaft (drive shaft) 31a of the motor 31; and engagement teeth 33A that mesh with the sprocket 32, are provided over the entire circumference of the circumferential surface of the rotary treatment tank 20 at an equal pitch, and has a greater number of teeth than the sprocket 32.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an organic waste decomposition treatment apparatus used in a bio-toilet, a food waste processor, etc., which decomposes and treats organic wastes such as human and livestock excreta (urine and feces) and food waste by the action of microorganisms, and particularly relates to an organic waste decomposition treatment apparatus capable of achieving energy savings.

Background Art

[0002] There is known a bio-toilet that uses an apparatus for introducing excreta into large sawdust, stirring the excreta together with the large sawdust, and decomposing the mixture by microorganisms to treat human excreta. This bio-toilet does not require the discharge of excreta into sewage, i.e., there is no drainage, and it does not require pumping, eliminating the need for sewage treatment facilities and septic tanks, and enabling the treatment of excreta on-site at buildings and facilities. Moreover, the decomposed product of excreta can be effectively utilized as compost or soil conditioner together with the large sawdust. Therefore, in recent years, attention has been focused on bio-toilets as they can contribute to the realization of a recycling-oriented society.

[0003] However, since such bio-toilets ferment and decompose excreta by microorganisms, power is required to stir the large sawdust and excreta to supply oxygen to the microorganisms or to heat the mixture to a temperature suitable for the growth of the microorganisms, resulting in high running costs, which has become an obstacle to their widespread use.

[0004] Here, as a decomposition treatment apparatus conventionally used in this type of bio-toilet, for example, as disclosed in Patent Document 1 and Patent Document 2, etc., there is provided a treatment tank formed with a U-shaped cross-section into which excreta enters, a horizontal rotating shaft horizontally installed in the treatment tank and driven by a motor, and stirring blades attached in the radial direction to this horizontal rotating shaft for stirring the large sawdust and excreta. An apparatus is known in which the large sawdust with attached microorganisms and excreta are stirred in the treatment tank by the rotating stirring blades.

[0005] However, as in Patent Document 1, Patent Document 2, etc., in a treatment tank formed with a U-shaped cross section, with a horizontal rotating shaft horizontally installed as the axis center, and stirring blades arranged in the radial direction of the horizontal rotating shaft being rotated around the horizontal rotating shaft, the height of the treatment tank is required.

[0006] Therefore, in the conventional decomposition treatment device, in order to ensure a predetermined internal volume of the treatment tank, the height of the treatment tank had to be increased. However, since the bio-toilet in which such a decomposition treatment device is used has a structure in which a toilet is arranged above the treatment tank, when the height of the treatment tank is increased, the position of the toilet bowl of the toilet becomes higher. For this reason, the floor surface of the toilet has to be set higher from the ground where the toilet is installed, and there may be a case where lifting means such as stairs is required to facilitate the entry and exit of toilet users. That is, it becomes difficult to respond to the current demand for barrier-free, and in a form having a lift such as stairs for using the toilet, it is difficult for the elderly, disabled people, people using wheelchairs, etc. to use, and even if a caregiver accompanies, it will impose a burden on the lifting of stairs, etc. Therefore, for the further popularization of bio-toilets, it is desirable to enable a design that takes into account barrier-free and is easy for toilet users to use.

[0007] On the other hand, Patent Document 3 discloses a technology composed of a turntable rotated by a driving force of a motor or the like via a reduction gear and a drive belt, a dirt decomposition tank (treatment tank) that receives a rotational force from the turntable and can be easily attached and detached, and a fixed stirring plate independently suspended so as not to contact the dirt decomposition tank, and stirring the wood chips and other organic dirt containing microorganisms in the rotating dirt decomposition tank with the fixed stirring plate.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0009] However, as in Patent Document 3, when a driving force such as a motor is transmitted to the rotating shaft of a rotating table via a reduction gear and a driving belt, and a processing tank is placed on the rotating table and rotated together with the rotating table, a large driving force and energy consumption are required for the rotational driving of the processing tank.

[0010] Therefore, an object of the present invention is to provide an organic matter decomposition treatment apparatus capable of achieving energy savings.

Means for Solving the Problems

[0011] The organic matter decomposition treatment apparatus according to the invention of claim 1 includes a bottomed cylindrical rotating treatment tank that houses a bacterial bed and into which an object to be treated is introduced, a stirring unit provided inside the rotating treatment tank for stirring the bacterial bed and the object to be treated, a drive source for rotationally driving the rotating treatment tank, a gear attached to the output shaft of the drive source, and meshing teeth provided on the circumferential surface of the rotating treatment tank at an equal pitch interval over the entire circumference and having a larger number of teeth than the gear.

[0012] The above-mentioned rotating treatment tank is a tank for housing a bacterial bed and fermenting and decomposing the introduced object to be treated by microorganisms in the bacterial bed, and is a bottomed cylindrical shape having an opening above where the object to be treated is introduced. The above-mentioned stirring unit is provided inside the rotating treatment tank and stirs the bacterial bed and the object to be treated accommodated in the rotating treatment tank. The above-mentioned drive source rotates the rotating treatment tank, and for example, it may be a drive motor (electric motor) such as an electric motor, or it may be a handle type (hand-operated) that is rotated manually, or it may be a pedal type (pedal-operated) that is rotated by pedaling. Incidentally, the object to be processed is an object to be fermented and decomposed by microorganisms, and is an organic substance such as organic waste such as excrement (feces and urine) of humans and livestock and raw garbage.

[0013] The above-mentioned gear is connected to the output shaft (drive shaft) of the drive source, rotates integrally with the rotation of the output shaft of the drive source, and meshes with the meshing teeth annularly arranged at equal pitch intervals on the circumferential surface of the rotary treatment tank, so that the driving force of the drive source is transmitted to the rotary treatment tank via the meshing teeth. The number of teeth (z) of this gear is less than the number of teeth of the meshing teeth annularly arranged at equal pitch intervals on the circumferential surface of the rotary treatment tank. And when the meshing teeth annularly arranged at equal pitch intervals on the circumferential surface of the rotary treatment tank are formed by an annular chain, this gear is formed by a sprocket corresponding to the tooth profile of the annular chain, and when the meshing teeth annularly arranged at equal pitch intervals on the circumferential surface of the rotary treatment tank are formed by a gear, this gear is formed by a gear (spur gear, etc.) corresponding to the tooth profile of the gear.

[0014] The above-mentioned meshing teeth mesh with the gear, have a number of teeth more than the number of teeth of the gear, and are annularly arranged at equal pitch intervals on the circumferential surface of the rotary treatment tank. For example, they may be formed by attaching an annular chain to the circumferential surface of the rotary treatment tank, or may be formed by attaching an annular gear. Incidentally, the meshing teeth are not limited to a tooth profile such as a gear, and mean a form of wide - sense unevenness (crests and troughs) that meshes with the gear.

[0015] Claim 1 In the organic substance decomposition treatment apparatus of the invention, the meshing teeth are formed by an annular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, and the gear is formed by a sprocket meshing with the annular chain. As the above-mentioned annular chain, it may be a roller chain or a silent chain. Preferably, when using a double-sided meshing type, for example, by meshing the meshing teeth on the outer peripheral surface side with a sprocket, a transmission mechanism for transmitting the driving force of the drive source to the rotary treatment tank is constituted. On the other hand, a gear (pinion) is separately meshed with the meshing teeth on the inner peripheral surface side, and a member such as a cutter for finely cutting, for example, toilet paper or a mass of the bacterial bed in the rotary treatment tank is attached to the rotating shaft of the internal gear. Thus, with the rotation of the rotary treatment tank, the rotation of the member is enabled. Therefore, it is also possible to improve the decomposition treatment performance.

[0016] Claim 1 In the organic matter decomposition treatment apparatus according to the invention of Claim 1 , a cutter is disposed inside the rotary treatment tank. The above-mentioned cutter is for finely cutting toilet paper or crushing the bacterial bed that has become a mass containing moisture. As long as it can finely cut the toilet paper or the mass of the bacterial bed, its form is not particularly limited. Preferably, it can also promote the movement (feeding out) of the bacterial bed by rotation (self-rotation).

[0017] Claim 1 The organic matter decomposition treatment apparatus according to the invention of Claim 1 further includes a cutter transmission mechanism for transmitting the rotation of the rotary treatment tank to the cutter. The above-mentioned cutter transmission mechanism can be constituted by, for example, a belt, a pulley, a chain, a sprocket, a gear, etc.

[0018] Claim 1 In the organic matter decomposition treatment apparatus according to the invention of Claim 1 , the meshing teeth are formed by an annular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, the gear is formed by a sprocket meshing with the outer peripheral side of the annular chain, the cutter transmission mechanism is composed of a cutter gear meshing on the inner peripheral surface side of the annular chain attached to the upper edge portion of the rotary treatment tank, and a rotating shaft to which the cutter gear is fixed, and the cutter is integrally attached to the rotating shaft. The cutter gear meshes with the meshing teeth on the inner peripheral surface side of an annular chain attached to the entire circumference of the circumferential surface of the upper edge of the rotary treatment tank, and has a smaller number of teeth than the number of teeth of the meshing teeth of the annular chain.

[0019] Claim 2 The organic matter decomposition treatment apparatus according to the invention of further includes a moisture supply means for dripping moisture onto the stirring unit and / or the cutter. The moisture supply means may be configured to be able to supply moisture (humidity) to the toilet paper in the bacterial bed by dripping moisture onto the stirring unit and / or the cutter. For example, it may be composed of a tank for storing water, a pipeline for guiding the water in the tank to the stirring unit and / or the cutter, and a nozzle for dripping the water from the pipeline.

[0020] Claim 3 The rotary treatment tank of the organic matter decomposition treatment apparatus according to the invention of is rotatably supported at its bottom by rollers or rotators. The above rollers may be any that receive the bottom surface of the rotary treatment tank and rotatably support the rotary treatment tank. For example, ball rollers (free ball bearings, ball casters) can be used. The above rotators may also be any that receive the bottom surface of the rotary treatment tank and rotatably support the rotary treatment tank. For example, Mawar (registered trademark) manufactured by Osaka Taiyu Co., Ltd. or turntables can be used.

Advantages of the Invention

[0021] According to the organic matter decomposition treatment apparatus according to the invention of claim 1, a gear attached to the output shaft of a drive source for rotationally driving a bottomed cylindrical rotary treatment tank that houses a bacterial bed and an object to be treated is engaged with meshing teeth provided at equal pitch intervals over the entire circumference on the circumferential surface of the rotary treatment tank and having more teeth than the gear. Therefore, the driving force of the drive source is transmitted to the rotary treatment tank by a gear transmission mechanism including the gear attached to the output shaft of the drive source and the meshing teeth arranged annularly on the circumferential surface of the rotary treatment tank and having more teeth than the gear. Thus, the rotary treatment tank can be rotationally driven with a small driving force of the drive source and low energy consumption. By the rotation of the rotary treatment tank, the stirring blades provided in the rotary treatment tank stir the bacterial bed and the object to be treated, i.e., the organic matter, in the rotary treatment tank, and the fermentation decomposition of the object to be treated by microorganisms is promoted. Therefore, energy savings can be achieved.

[0022] According to the organic matter decomposition treatment apparatus according to the invention of, the meshing teeth are formed by an annular 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 annular chain. Since it is an annular chain, it can be attached only by adjusting the length of the chain corresponding to the circumference of the rotary treatment tank. , return It is easy to obtain a chain corresponding to the circumference of the rotary treatment tank.

[0023] Claim 1 , torque According to the organic matter decomposition treatment apparatus according to the invention of, further, since it includes a cutter provided inside the rotary treatment tank, when applied to a bio-toilet, the cutter can finely cut toilet paper and lumps of the bacterial bed. Therefore, It is possible to prevent the remaining of toilet paper, the generation of bad odors due to lumps of the bacterial bed, and the reduction of the decomposition treatment efficiency.

[0024] Claim 1 , another According to the organic matter decomposition treatment apparatus according to the invention of, further, since it includes a cutter transmission mechanism that transmits the rotation of the rotary treatment tank to the cutter and rotates the cutter, the cutter can be rotated by a common drive source that rotationally drives the rotary treatment tank. Thus, It can break down toilet paper and the lumps of the fungus bed into finer pieces more quickly without consuming additional energy.

[0025] Claim 1 According to the organic matter decomposition treatment apparatus according to the invention, the meshing teeth are formed by an annular chain attached along the entire circumference of the circumferential surface of the rotary treatment tank, the gear is formed by a sprocket meshing with the outer peripheral side of the annular chain, the cutter transmission mechanism consists of a cutter gear meshing on the inner peripheral surface side of the annular chain provided at the upper edge of the rotary treatment tank and the rotary shaft of the cutter gear, and since the cutter is integrally attached to the rotary shaft , card The rotary mechanism for rotating the cutter requires fewer parts.

[0026] Claim 2 According to the organic matter decomposition treatment apparatus according to the invention, further, since it is equipped with a moisture application means for dripping moisture onto the stirring part and / or the cutter, moisture can be added to the toilet paper, making the toilet paper easier to unravel. Therefore, Claim 1 In addition to the effects described in, the generation of malodors due to the remaining toilet paper and the reduction in the decomposition treatment efficiency can be further prevented.

[0027] Claim 3 According to the organic matter decomposition treatment apparatus according to the invention, since the bottom of the rotary treatment tank is rotatably supported by rollers or rotating bodies, the load torque of the rotary treatment tank can be reduced. Therefore, in addition to the effects described in claim 1, the rotary treatment tank can be rotationally driven with a smaller driving force and less energy consumption.

Brief Description of the Drawings

[0028]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the embodiments, the same reference signs in the drawings denote the same or corresponding functional parts, and thus the repeated detailed description thereof will be omitted here.

[0030] [Embodiments] First, the organic matter decomposition treatment apparatus 10 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. The embodiment of the present invention exemplifies the case where the organic matter decomposition treatment apparatus of the present invention is applied to a bio-toilet 100 installed outdoors.

[0031] As shown in FIG. 1, the bio-toilet 100 according to the present embodiment includes toilets 111 and 112 in a building 110, and an organic matter decomposition treatment apparatus 10 (hereinafter, may be simply abbreviated as "decomposition treatment apparatus 10") that decomposes excrement (the object to be treated, which is an organic matter) excreted into the toilets 111 and 112 by microorganisms.

[0032] Specifically, in the bio-toilet 100 according to this embodiment, two individual room spaces 131 and 132 are formed in the building 110 by partition boards 121. A urinal 111 dedicated for men is installed in one individual room space 131, and a toilet 112 equipped with a Western-style toilet seat for both urination and defecation is installed in the other individual room space 132. Also, two doors 141 and 142 that can be opened and closed to allow entry and exit to each individual room space 131 and 132 are provided. Note that the building 110 is formed of, for example, plastic, wood, steel, etc. Also, the toilets 111 and 112 are, for example, made of stainless steel, hard plastic, or porcelain. And in the bio-toilet 100 according to this embodiment, one decomposition treatment device 10 is installed below the toilets 111 and 112 provided in each individual room space 131 and 132.

[0033] As shown in FIGS. 1 to 4, the decomposition treatment device 10 of this embodiment includes a bottomed cylindrical rotating treatment tank 20, a motor 31, a sprocket 32, and an annular chain 33 as a drive mechanism for rotationally driving the rotating treatment tank 20, a stirring unit 60 and a cutter unit 70 installed in the rotating treatment tank 20, a hot air blower 80 for blowing hot air into the bacterial bed 50 accommodated in the rotating treatment tank 20, etc. The rotating treatment tank 20 is accommodated in a base 40 installed in the building 110, and feces, urine, and toilet paper waste that fall from the toilets 111 and 112 installed on the upper part of the base 40 into the rotating treatment tank 20 are mixed with the bacterial bed 50 accommodated in the rotating treatment tank 20 and subjected to fermentation decomposition treatment by microorganisms in the bacterial bed 50. That is, in the bio-toilet 100 according to this embodiment, the rotating treatment tank 20 is provided below the toilet 111 and the toilet 112, and feces, urine, etc. that have fallen from each of the toilets 111 and 112 are received in the common rotating treatment tank 20, and the feces, urine, etc. are decomposed in the rotating treatment tank 20 by the action of microorganisms.

[0034] The pedestal 40 is formed, for example, into a substantially prismatic shape or a substantially cylindrical shape including a bottom portion 40a, a side portion 40b, and a top portion 40c by fixing steel plates such as stainless steel to the bottom surface, side surface, and top surface of the frame body, and is installed on the floor inside the building 110. On the top portion 40c of this pedestal 40, toilets 111 and 112 are installed on its top surface, and openings 41 and 42 through which dirt passes corresponding to the openings of the respective toilets 111 and 112 are provided. And inside this pedestal 40, the rotary treatment tank 20 is accommodated below the toilets 111 and 112. In addition, when implementing the present invention, the floor inside the building 110 may form the bottom portion 40a of the pedestal 40.

[0035] The bacterial bed 50 accommodated in the rotary treatment tank 20 is a carrier to which microorganisms adhere and settle. For example, biochips such as plant chips such as large sawdust, wood chips, bamboo chips, bamboo charcoal, charcoal, plant granules, and plant powders, husks such as rice bran, rice husks, shells, and shells of crustaceans, peat, vermiculite, ceramics, plastics, and other inorganic porous substances are used. Among them, wood chips such as large sawdust and wood chips, which have water absorption and are easy for microorganisms to grow, are preferably used. And with such plant materials such as large sawdust, the bacterial bed 50 after decomposing excrement and urine can be suitably used as a soil conditioner, fertilizer, etc.

[0036] The rotary treatment tank 20 has a bottomed cylindrical shape (substantially container shape) with an open top, and is formed by integrating a circular flat bottom portion and a circular cylindrical portion having a curved surface, which are formed of a corrosive metal plate such as stainless steel, by welding. This rotary treatment tank 20 is located below the toilets 111 and 112 and receives dirt such as excrement and urine excreted into the toilets 111 and 112 and toilet paper put into the toilet 112. Further, this rotary treatment tank 20 accommodates the bacterial bed 50 inside, and decomposes the dirt that has fallen from the toilets 111 and 112 by the microorganisms in the bacterial bed 50.

[0037] And in the present embodiment, an annular chain 33 constituting a drive mechanism for rotationally driving the rotary treatment tank 20 is attached along the entire circumference in the circumferential direction to the circumferential edge portion at the upper part of the rotary treatment tank 20. The annular chain 33 forms a plurality of meshing teeth 33A at equal pitch intervals over its entire circumference on the circumferential surface of the rotary treatment tank 20. For example, a double-sided meshing type roller chain composed of a roller, a bush, a pin, an inner plate, and an outer plate is used. This annular chain 33 is wound annularly along the circumference of the upper edge portion of the rotary treatment tank 20 and is attached to the entire circumference of the upper edge portion of the rotary treatment tank 20. Here, one with an attachment 33a is used and is attached to the entire circumference of the upper edge portion of the rotary treatment tank 20 by bolts 33b or the like. As will be described later, this annular chain 33 functions as a driven-side gear that meshes with a sprocket 32 attached to the output shaft (drive shaft) 31a of the motor 31. In the present embodiment, this annular chain 33 meshes with the sprocket 32 to form meshing teeth 33A having a larger number of teeth than the sprocket 32 at equal pitch intervals over the entire circumference on the circumferential surface of the rotary treatment tank 20.

[0038] In particular, in the present embodiment, by using a double-sided meshing type roller chain for the annular chain 33, in addition to the outer circumferential meshing teeth 33A that mesh with the sprocket 33, it also has inner circumferential meshing teeth 33B that mesh with a sprocket 72 described later. Note that the number of teeth of the outer circumferential meshing teeth 33A of the annular chain 33 is the same as the number of teeth of the inner circumferential meshing teeth 33B.

[0039] Further, the rotary treatment tank 20 is provided with a support shaft portion 23 at the center of its bottom outer surface side, and the support shaft portion 23 is rotatably supported by a bearing 46 provided on the bottom surface portion 40a of the base 40. Furthermore, the rotary treatment tank 20 is placed on a plurality (for example, four provided at predetermined equal intervals) of ball rollers 47 installed on the bottom surface portion 40a of the base 40 and is rotatably supported by the ball rollers 47. The ball roller 47 is one in which a ball made of metal or the like is rotatably held on a base, and the rotary treatment tank 20 is placed on the ball to rotatably support the rotary treatment tank 20. Usually, a plurality of them are used. Thereby, the rotation of the rotary treatment tank 20 can be enabled with a smaller load torque.

[0040] The drive mechanism for rotationally driving the rotary treatment tank 20 includes a motor (electric motor) 31 as a drive source connected to a power supply, a sprocket 32 attached to the output shaft (drive shaft) 31a of the motor 31, and an annular chain 33 attached to the entire circumference of the upper edge portion of the rotary treatment tank 20 and meshing with the sprocket 32. As the motor 31, an induction motor (AC motor, induction motor), etc. can be used, and the generated torque may be increased as appropriate by combining with a gear head (speed reduction mechanism). The sprocket 32 is a drive-side gear attached to the output shaft 31a of the motor 31 and meshes with the outer peripheral meshing teeth 33A formed by the annular chain 33 attached along the entire circumference of the upper edge portion of the rotary treatment tank 20. This sprocket 32 meshes on the outer periphery side of the annular chain 33 attached to the outer peripheral surface side of the upper edge portion of the rotary treatment tank 20, and the number of its teeth is smaller than the number of teeth of the meshing teeth 33A of the equal pitch formed by the annular chain 33. Note that the motor 31 and the sprocket 32 attached to its output shaft 31a are disposed inside the base 40 and outside the rotary treatment tank 20.

[0041] And the sprocket 32 and the annular chain 33, which are a pair of meshing gears with each other, constitute a transmission mechanism for transmitting the driving force from the motor 31. Since the annular chain 33 is attached to the entire periphery of the outer circumference of the upper edge portion of the rotary treatment tank 20, the rotation of the output shaft 31a of the motor 31 is made into the rotation of the rotary treatment tank 20 via the sprocket 32. That is, the sprocket 32 and the annular chain 33 are reduction gears where the sprocket 32 is on the driving gear (input) side and the annular chain 33 is on the driven gear (output) side, and it is a gear train with a fixed central axis composed of circular gears, constituting a single-stage gear mechanism.

[0042] Thus, the drive mechanism for rotationally driving the rotary treatment 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 an annular chain 33 integrally attached to the entire circumference of the outer periphery of the upper edge portion of the rotary treatment tank 20 and meshing with the sprocket 32 and rotating as the sprocket 32 rotates. When the sprocket 32 rotates by the output of the motor 31, the annular chain 33 meshing with this sprocket 32 is integrally attached along the entire circumference of the upper edge portion of the rotary treatment tank 20, so that the annular chain 33 and the rotary treatment tank 20 meshing with it rotate integrally as the sprocket 32 rotates. At this time, the sprocket 32, the annular chain 33, and the rotary treatment tank 20 rotate in opposite directions to each other. Further, the sprocket 32 meshes with the annular chain 33 attached along the entire circumference of the outer peripheral surface of the upper edge portion of the rotary treatment tank 20 on the outer peripheral side thereof.

[0043] In particular, the number of teeth of the meshing teeth 33A, 33B of the annular chain 33 attached along the entire circumference of the outer peripheral surface of the upper edge portion 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 annular 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 the gear transmission mechanism that transmits the driving force of the motor 31 from the sprocket 32, which is a small gear, to the annular chain 33, which is a large gear, and the rotary treatment tank 20 can be rotated with a small driving force, low energy consumption, and a small-sized motor.

[0044] Also, in the decomposition treatment apparatus 10 of the present embodiment, a stirring unit 60 is provided inside the rotary treatment tank 20. The stirring unit 60 stirs the bacterial bed 50 and contaminants in the rotary treatment tank 20 by the rotation of the rotary treatment tank 20. For example, as shown in FIGS. 1 to 4, it is located at the approximate center of the rotary treatment tank 20 and has a vertically long vertical portion 61, and extends in a direction substantially perpendicular to the vertical portion 61, that is, in the radial direction of the rotary treatment tank 20. It is composed of a horizontal portion 62 attached to the upper surface portion 40c of the base portion 40 by welding or the like, and a plurality of stirring blades 63 attached to the vertical portion 61 and the horizontal portion 62.

[0045] The shape of the stirring blade 63 is not particularly limited. For example, as shown in FIGS. 1 to 4, a straight portion 63a that extends obliquely from the horizontal portion 62 toward the bottom side of the fixed treatment tank 20, and a blade portion 63b that is continuously curved in a substantially L shape from the lower side of the straight portion 63a and has a tip portion bent upward to scoop obliquely from the bottom side of the rotary treatment tank 20. The stirring blade 63A, or a straight portion 63a that extends obliquely from the horizontal portion 62 toward the bottom side of the fixed treatment tank 20, a blade portion 63b that is continuously curved in a substantially L shape from the tip side of the straight portion 63a and has a tip portion bent upward to scoop obliquely from the bottom side of the rotary treatment tank 20, and a pair of left and right arc-shaped blade portions 63c protruding from both side surfaces of the straight portion 63a. The stirring blade 63B, or a horizontal plate 63d formed in a direction substantially perpendicular to the vertical portion 61 from the lower end portion of the vertical portion 61, and a blade portion 63b that is curved in a substantially L shape from the horizontal plate 63d toward the bottom side of the rotary treatment tank 20 and has a tip portion bent upward to scoop obliquely from the bottom side of the rotary treatment tank 20. The stirring blade 63C, or a straight portion 63a that extends obliquely from the horizontal shaft 62 toward the bottom side of the fixed treatment tank 20, and a flat plate portion 63e formed in a direction substantially perpendicular to the straight portion 63a from the lower end portion of the straight portion 63a and inclined downward toward the tip side, located at the corner of the inner bottom surface and the inner side surface of the fixed treatment tank 20. There are stirring blades 63D and the like. In FIGS. 1 to 4, the stirring blade 63A and the stirring blade 63B and the stirring blade 63C and the stirring blade 63D extend on opposite sides with respect to the horizontal portion 62. The members constituting these stirring units 60 are preferably made of a stainless steel material that is less likely to rust or corrode, and the respective members are joined and assembled by welding, bolts, nuts, or the like.

[0046] Particularly, in the form of scooping up (raking up) the mushroom bed 50, such as the blade part 63b that is curved in a substantially L shape and the tip part is bent upward, or the flat plate part 63e that is inclined downward toward the tip part side, the reaction force applied to the blade surface is small and it is difficult to apply a load. Therefore, it is difficult to be damaged or deformed.

[0047] Furthermore, the flat plate part 63e that is inclined downward toward the tip part side flattens and squeezes the lumps containing the moisture of the mushroom bed 50 due to its flat plate shape. That is, even if lumps (clods) containing the moisture of the mushroom bed 50 gather at the corner of the inner bottom surface and the inner side surface of the rotary treatment tank 20, the flat plate part 63e located at the corner of the inner bottom surface and the inner side surface of the fixed treatment tank 20 flattens the lumps of the mushroom bed 50, and it is possible to prevent a decrease in the decomposition treatment efficiency of the dirt by microorganisms. In addition, by providing a plurality of stirring blades 63 extending toward the bottom side of the fixed treatment tank 20 in the radial direction from the center side to the end side of the fixed treatment tank 20, the mushroom bed 50 and the dirt in the rotary treatment tank 20 can be stirred more evenly. Therefore, the decomposition treatment efficiency of the dirt can be increased.

[0048] In the case where a plurality of stirring blades extending horizontally in the radial direction of the fixed treatment tank 20 are provided in the vertical direction, only a stirring that lifts the mushroom bed 50 slightly upward and then returns it to its original position can be performed. On the other hand, if it is a stirring blade 63 in a form that extends from the horizontal part 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 up (rakes up) from the bottom side of the rotary treatment tank 20, vertical circulation also occurs, and it is possible to prevent the microorganisms at the bottom of the rotary treatment tank 20 from being starved of oxygen and becoming anaerobic. The treatment ability of the microorganisms can be easily exerted, and the decomposition treatment efficiency of the dirt can be increased.

[0049] Furthermore, in the decomposition processing apparatus 10 of the present embodiment, a stirring blade 63 is disposed near a hollow tube 81 that ejects warm air and is disposed on the bottom side of a fixed processing tank 20, which will be described later. The stirring blade 63 disperses the bacterial bed 50 and dirt scooped up by the ejection pressure of the warm air from the hollow tube 81, making it difficult for lumps of the bacterial bed 50 and dirt to form. As a result, it is possible to promote the decomposition of dirt by microorganisms in the bacterial bed 50. In addition, if lumps of the bacterial bed 50 and dirt are less likely to form, the reaction force applied to the blade surface will also be small, making it difficult to apply a load to the blade surface, so it is less likely to be damaged.

[0050] However, when implementing the present invention, the configuration of the stirring unit 60, the arrangement, number, and shape of the stirring blades 63 are not limited to the above, and may be stirring blades extending in the radial direction of the fixed processing tank 20, that is, in the horizontal direction. Further, it is not necessary to consider the positional relationship between the hollow tube 81 and the stirring blade 63. The arrangement directions of the plurality of stirring blades 63 with respect to the horizontal portion 62 may all be in the same direction or may be arbitrarily in different directions. Further, the stirring blade 63 may be directly fixed to the upper surface portion 40c of the base portion 40 by welding or the like, and is not limited to being arranged on the same radial line, and a plurality of them may be provided at separate locations.

[0051] Thus, in the decomposition processing apparatus 10 of the present embodiment, inside the rotary processing tank 20, a stirring blade 63 is provided that is attached to the upper portion 40c of the base 40 and extends from the long horizontal portion 62 in the radial direction of the fixed processing tank 20 toward the bottom side of the rotary processing tank 20, and the position of the stirring unit 60 is fixed inside the rotary processing tank 20. Therefore, by the rotational drive of the rotary processing tank 20, the bacterial bed 50 and dirt accommodated in the rotary processing tank 20 move relative to the fixed position of the stirring blade 63, and thus the bacterial bed 50 and dirt in the rotary processing tank 20 are stirred by the stirring blade 63.

[0052] Here, in the bio-toilet 100, together with excrement and urine, toilet paper is also put into the rotary processing tank 20 from the toilet 112. If the toilet paper dries without being dissolved by the moisture of the excrement and urine, it will remain without being decomposed, emit a bad smell, or reduce the decomposition efficiency of excrement and urine by microorganisms. Therefore, in the decomposition processing apparatus 10 of the present embodiment, the toilet paper that has fallen from the toilet 112 into the rotary processing tank 20 is quickly shredded by the cutter 73 of the cutter unit 70, making the toilet paper easier to break down with moisture. Also, the bacterial bed 50 that has become lumps (clumps) containing moisture can be crushed by the cutter 73.

[0053] That is, in the decomposition processing apparatus 10 of the present embodiment, a cutter unit 70 is provided inside the rotary processing tank 20. The cutter unit 70 is for shredding toilet paper that has fallen from the toilet 112 into the rotary processing tank 20 and the bacterial bed 50 that has become lumps (clumps) containing moisture. In the present embodiment, a sprocket 71 that meshes on the inner peripheral side with an annular chain 33 attached to the upper peripheral edge of the rotary processing tank 20, a rotary shaft (driven shaft) 72 to which the sprocket 71 is fixed, a main cutter 73 composed of a plurality of chip saws (circular saw blades) 73A or metal blades 73B attached to the rotary shaft 72 of the sprocket 71 below the sprocket 71, a bearing 74 disposed above the sprocket 71 and supporting the rotary shaft 72 rotatably, a mounting plate 75 attached to the upper surface portion 40c of the base 40, a mounting rod 76 attached to the mounting plate 75 and extending downward in a direction substantially perpendicular to the mounting plate 75, and a plurality of sub - cutters 77 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 processing tank 20 and meshes with the meshing teeth 33B on the inner peripheral side of the annular chain 33 attached to the upper peripheral edge of the rotary processing tank 20. A rotary shaft 72 is disposed at its center and is integrated with the rotary shaft 72. Note that the sprocket 71 of the cutter unit 70 is smaller than the number of teeth of the annular chain 33 attached along the entire circumferential circle of the upper edge portion of the rotary processing tank 20, preferably 0.1 times to 0.5 times. In other words, the reference circle diameter of the sprocket 71 is smaller than the reference circle diameter of the annular chain 33, preferably 0.1 times to 0.5 times.

[0055] The rotating shaft 72 is fixed to the sprocket 71 by a key or the like and is rotatable integrally with the sprocket 71. Below it, a plurality of main cutters 73 are attached in parallel at a predetermined interval in the vertical direction. Further, this rotating shaft 72 is rotatably supported by a bearing 74 fixed to a mounting plate 75 which is mounted on the upper surface portion 40c of the base 40 via a mounting member or the like (not shown) above the sprocket 71, 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 portion 40c of the base 40 by a mounting member or the like (not shown), and a bearing 74 for rotatably supporting the rotating shaft 72 is fixed thereto. Further, a mounting rod 76 for attaching the sub-cutter 77 is attached to this 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 is attached to the mounting plate 75 on its upper side. On its lower side, a plurality of sub-cutters 77 are attached in parallel at a predetermined interval in the vertical direction.

[0057] The main cutter 73 is composed of a chip saw (circular saw blade) 73A or a metal blade 73B composed of a plurality of (for example, 2 to 8) blades (3 blades are used in the figure), and can cut toilet paper and the mass of the mushroom bed 50 into small pieces. Each main cutter 73 is attached to the rotating shaft 72 so as to be rotatable integrally with the rotating shaft 72 with its front and back surfaces in the vertical direction, and is disposed between the sub-cutters 77. By the drive of the motor 31, it rotates horizontally between the sub-cutters 77 via the sprocket 32, the endless chain 33, the sprocket 71, and its rotating shaft 72. Preferably, the plurality of blades of the metal blade 73B are inclined with respect to the vertical rotating shaft 72. Thereby, the movement (feeding out) of the mushroom bed 50 can be accelerated, and the stirring efficiency of the mushroom bed 50 can be improved.

[0058] Also, the sub-cutter 77 can also break up toilet paper and lumps of the mushroom bed 50. For example, a side cutter formed in a wide plate shape toward the tip is used, which is disposed between the main cutters 73 and is attached and fixed to an attachment rod 76 attached to an attachment plate 75 with its front and back surfaces facing in the vertical direction. In addition, the members constituting these cutter parts 70 are also preferably made of a stainless steel material that is less likely to rust or corrode, and each member is assembled by joining with welding, bolts, nuts, etc.

[0059] Thus, in the decomposition processing apparatus 10 of the present embodiment, a sprocket 71 is meshed with the inner peripheral side of an annular chain 33 attached to the upper peripheral edge of the rotary processing tank 20, a rotary shaft 72 as a driven shaft is disposed on the sprocket 71, and a plurality of main cutters 73 are rotatably attached to the rotary shaft 72 integrally with the rotary shaft 72 below the sprocket 71. Also, a plurality of sub-cutters 77 are attached to an attachment rod 76 extending from an attachment plate 75 attached to the upper surface portion 40c of the base 40 toward the bottom side of the rotary processing tank 20. That is, the main cutters 73 and the sub-cutters 77 are provided at fixed positions in the rotary processing tank 20. From this, by the rotational drive of the rotary processing tank 20, the toilet paper introduced into the rotary processing tank 20 moves relatively together with the mushroom bed 50 and excrement and urine with respect to the fixed positions of the main cutter 73 and the main cutter 73, so that the toilet paper in the rotary processing tank 20 is shredded by the main cutter 73 and the sub-cutter 77, and the lumps of the mushroom bed 50 are broken up.

[0060] In particular, in the disassembling device 10 of the present embodiment, a sprocket 71 is engaged with the inner peripheral side of an annular chain 33 attached to the upper peripheral edge of the rotary treatment tank 20, a rotary shaft 72 as a driven shaft is disposed on the sprocket 71, and a plurality of main cutters 73 are rotatably attached to the rotary shaft 72 integrally with the rotary shaft 72 below the sprocket 71. 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 includes a sprocket 71 as a cutter gear that meshes on the inner peripheral surface side of an annular chain 33 provided on the upper edge portion of the rotary treatment tank 20, and a rotary shaft 72 to which the sprocket 71 is fixed, and the main cutter 73 of the cutter unit 70 is integrally attached to the rotary shaft 72.

[0061] Therefore, by driving the motor 31, the rotary drive force is transmitted to the rotary treatment tank 20 around which the annular chain 33 is wound by a sprocket 32 attached to the output shaft 31a as the drive shaft of the motor 31 and an annular chain 33 that meshes with the sprocket 32 on the outer peripheral side thereof, and the rotary drive force is also transmitted to the main cutter 73 attached to the rotary shaft 72 by a sprocket 71 that meshes with the inner peripheral side of the annular chain 33 and a rotary shaft 72 as a driven shaft to which the sprocket 71 is fixed. At this time, the annular chain 33, the rotary treatment tank 20, and the main cutter 73 rotate in the same direction as each other.

[0062] Therefore, as the rotary treatment tank 20 rotates, the main cutter 73 in the rotary treatment tank 20 also rotates, so that the toilet paper that has fallen from the toilet 112 into the rotary treatment tank 20 can be made finer and faster. Furthermore, the bacterial bed 50 that has become a lump containing moisture can also be broken up. In addition, since the main cutter 73 rotates, it becomes difficult for the toilet paper to get caught in the cutters 73 and 77, so it becomes difficult to apply a load to the cutters 73 and 77. In addition, it is also possible to promote (feed out) the movement of the bacterial bed 50. In addition, in the decomposition processing apparatus 10 of the present embodiment, the drive source for rotationally driving the main cutter 73 of the cutter unit 70 is the common motor 31 that rotationally drives the rotation processing tank 20. The sprocket 32 and the annular chain 33 as the transmission mechanism for transmitting the driving force of the motor 31 are used. Further, the main cutter 73 is rotationally driven by the transmission mechanism of the sprocket 71 that meshes with the inner peripheral side of the annular chain 33 and its rotating shaft 72. That is, without using another drive source for the rotation of the main cutter 73, it is made common with the drive source for rotationally driving the rotation processing tank 20. Therefore, the main cutter 73 can be rotated without significantly increasing the energy consumption, and the toilet paper and the mass of the bacterial bed 50 can be made finer and faster. Since the main cutter 73 is rotationally driven by the transmission mechanism of the sprocket 71 that meshes with the inner peripheral side of the annular chain 33 and its rotating shaft 72, there is no risk of wearing the rotation processing tank 20.

[0063] In addition, in the decomposition processing apparatus 10 of the present embodiment, an attachment bar 76 is attached to the attachment plate 75 attached to the upper surface portion 40c of the base 40 above the sprocket 71 that meshes with the inner side of the annular chain 33 attached to the upper peripheral portion of the rotation processing tank 20, in parallel with the rotating shaft 72 of the sprocket 71, and a sub-cutter 77 is attached to the attachment bar 76. By disposing the sub-cutter 77 between the plurality of main cutters 73 in this way, that is, by alternately arranging the main cutter 73 and the sub-cutter 77 in a plurality of stages in the height direction (vertical direction) of the rotation processing tank 20, the toilet paper can be made finer and faster or the mass of the bacterial bed 50 can be effectively decomposed when passing between the main cutter 73 and the sub-cutter 77.

[0064] And in the decomposition processing apparatus 10 of the present embodiment, two such cutter units 70 are provided in the rotary processing tank 20. In one cutter unit 70, a chip saw (circular saw blade) 73A is used as the main cutter 73, and in the other cutter unit 70, a metal blade 73B is used as the main cutter 73. Therefore, it is possible to make the toilet paper and the bacterial bed 50 that has become a lump containing moisture and has fallen into the rotary processing tank 20 from the toilet 112 finer, more efficiently, and more quickly. However, when implementing the present invention, the cutter unit 70 may be provided at one location, or may be provided at three or more locations. Also, as long as the toilet paper and the bacterial bed 50 that has become a lump can be made fine, the form of the cutter is not limited to the above. Furthermore, the configuration of the cutter unit 70 is not limited to the above either. The rotational drive of the cutter may be transmitted by another transmission mechanism from the motor 31, or the rotational drive of the cutter may be transmitted from a motor different from the motor 31 that rotationally drives the rotary processing tank 20, or the cutter may not be rotated.

[0065] Furthermore, in the decomposition processing apparatus 10 according to the present embodiment, in addition to providing the cutter unit 70 in the rotary processing tank 20 to make the toilet paper and the bacterial bed 50 that has become a lump and has fallen into the rotary processing tank 20 from the toilet 112 finer, moisture is dripped onto the cutter unit 70 and the stirring unit 60 by the moisture application device 90 as the moisture application means, making it easier to add moisture to the toilet paper. As a result, the toilet paper is more likely to come apart and less likely to remain, and the generation of bad odors and the reduction in the decomposition processing efficiency of dirt can be further prevented.

[0066] That is, in the decomposition processing apparatus 10 according to the present embodiment, in order to wet the toilet paper that has fallen into the rotary processing tank 20 from the toilet 112 and make the fibers easier to come apart, it has a moisture application device 90 that drips water into the rotary processing tank 20. In this embodiment, the moisture supply device 90 mainly includes a tank 91 for storing water, a solenoid valve 92 for supplying and stopping water, a pipe 93 for guiding the water in 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 blades 63, the main cutter 73, the sub-cutter 77, etc. Note that for the pipe 93, the nozzle, etc., for example, a stainless steel material that is less likely to rust or corrode is used.

[0067] In addition, in this embodiment, a control unit (not shown) is provided to open the solenoid valve 92 by energizing the solenoid valve 92 after receiving a signal for detecting the opening and closing of the door by a door opening / closing detection switch described later. When the use of the bio-toilet 100 is detected by the opening and closing of the door, as will be described later, the rotary treatment tank 20 is rotationally driven for a predetermined time, and hot air is supplied into the rotary treatment tank 20 by the hot air blower 80. After they stop, the control unit opens the solenoid valve 92, and water is supplied from the tank 91 to the nozzle through the pipe 93, and water is dripped from the nozzle onto the stirring blades 63, the main cutter 73, the sub-cutter 77 in the rotary treatment tank 20. Thus, moisture can be added to the toilet paper, and the fibers of the toilet paper can be easily unraveled. In particular, by dripping moisture onto any one or more of the stirring blades 63, the main cutter 73, and the sub-cutter 77 where the toilet paper is likely to get entangled, the toilet paper can be efficiently wetted, and the toilet paper can be unraveled more quickly. However, when implementing the present invention, the dripping position of the moisture is not particularly limited. It may be dripped onto any one or more of the stirring blades 63, the main cutter 73, and the sub-cutter 77, or may be directly dripped onto the bacterial bed 50. Note that usually, when a predetermined set time has elapsed since the opening of the solenoid valve 92, the control unit stops energizing the solenoid valve 92 and closes the solenoid valve 92.

[0068] In addition, the decomposition treatment device 10 according to this embodiment has a hot air blower 80 for blowing hot air onto the bacterial bed 50 in the rotary treatment tank 20. The warm air blowing device 80 is a heating means for heating the inside 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 supplied into the rotary treatment tank 20 and supplying warm air into the rotary treatment tank 20, it supplies oxygen necessary for the growth and activity of microorganisms in the rotary treatment tank 20 and heats the inside of the rotary treatment tank 20 to a temperature suitable for the growth and activity of microorganisms.

[0069] In the present embodiment, the warm air blowing device 80 mainly includes an air compressor 81, a heater 82 for heating the air blown from the air compressor 81, a pipe 83 for guiding the air blown from the air compressor 81 and heated by the heater 82 into the rotary treatment tank 20, and a hollow pipe 84 connected to the pipe 83 and disposed on the bottom side of the rotary treatment tank 20 to eject the warm air from the pipe 83. The air compressor 81 and the heater 82 are arranged outside the rotary treatment tank 20. The air compressor 81 compresses and blows the sucked air, and the heater 82 heats the air blown from the air compressor 81 to a temperature suitable for the growth of microorganisms (for example, 15°C to 40°C).

[0070] Then, the air blown from the air compressor 81 and heated by the heater 82 is sent through the pipe 83 to a stainless-steel hollow pipe 84 horizontally provided on the bottom surface side in the rotary treatment tank 20. The hollow pipe 84 has a plurality of ejection holes 84a that open upward, sideways, downward, etc. The warm air blown from the air compressor 81 and heated by the heater 82 is ejected from the ejection holes 84a into the rotary treatment tank 20 (blown out) to supply air to the bacterial bed 50 in the rotary treatment tank 20. Also, by supplying the warm air, the inside of the rotary treatment tank 20 is heated. This hollow pipe 84 is provided with a connecting portion 84b that extends upward in a direction substantially perpendicular to its length direction, and by connecting the connecting portion 84b to the lower part of the vertical portion 61 of the stirring portion 60, it is supported by the stirring portion 60 and is disposed away from and not in contact with the inner bottom surface of the rotary treatment tank 20.

[0071] Note that the shape of the hollow tube 84 is not limited to a cylindrical shape and may be a square tube shape. Further, the side surface of the hollow tube 84 may be an inclined surface by attaching the cover 86 or the like. Thereby, even when the stirring blade 63 is disposed near the ejection hole 84a and the stirring blade 63 scoops up the fungus bed 50 or dirt, it is likely to fall due to the inclined surface of the cover 86 attached to the hollow tube 84, and the fungus bed 50 or dirt It is possible to prevent the situation where it rides on the hollow tube 84 and stays there, and it is possible to prevent a decrease in the decomposition treatment efficiency. For the pipe 83, the hollow tube 84, the cover 86 forming the inclined surface, etc., for example, a stainless steel material or the like that is less likely to rust or corrode is used. In the present embodiment, hot air is ejected into the fungus bed 50 from the ejection hole 84a of the hollow tube 84 disposed below the inside of the rotary treatment tank 20. However, when implementing the present invention, members constituting the stirring unit 60, for example, the stirring blade 63, the horizontal portion 62, the vertical portion 61, etc. may be formed in a hollow shape, and ejection holes may be provided on the peripheral surface thereof, and hot air may be supplied to the stirring unit 60, and hot air may be supplied from the stirring unit 60 into the fungus bed 50.

[0072] Thus, in the decomposition treatment apparatus 10 according to the present embodiment, by supplying hot air into the rotary treatment tank 20 by the hot air blower 80, oxygen necessary for the growth and activity of microorganisms in the fungus bed 50 in the rotary treatment tank 20 is supplied, and the inside of the rotary treatment tank 20 is heated to a temperature suitable for the growth and activity of microorganisms. Therefore, the growth and proliferation of microorganisms in the fungus bed 50 in the rotary treatment tank 20 are further promoted, and the decomposition treatment of dirt can be promoted. Further, the supply of hot air promotes the drying of the fungus bed 50 and prevents a decrease in the decomposition treatment efficiency due to excessive moisture.

[0073] Note that in the bio-toilet 100 of the present embodiment, the fungus bed 50 is accommodated in the rotary treatment tank 20 accommodated in the base 40, and the stirring unit 60, the cutter unit 70, the hollow tube 84, the pipe 83, the cover 86, the pipe 93, etc. in the rotary treatment tank 20 are arranged so as not to be visible through the openings of the toilets 111, 112 installed on the upper surface portion 40c of the base 40, and the arrangement does not give a sense of fear to the user. Also, in the toilet 100 of the present embodiment, in order to prevent the odor immediately after excretion from accumulating in the toilet, the space inside the base 40 may be ventilated, and a configuration such as an exhaust mechanism including a duct and an exhaust fan may 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, in the toilet 100 according to the present embodiment, a sensor (not shown) for detecting that a user has entered the toilet 100 is provided. When it is detected that a user has entered the toilet 100, the motor 31 that constitutes the drive mechanism for rotationally driving the rotary treatment tank 20 is automatically driven to rotationally drive the rotary treatment tank 20. That is, by detecting the entry and exit of a person using the toilet 100 and driving the motor 31, the rotary treatment tank 20 is rotationally driven via the sprocket 32 attached to the output shaft 31a of the motor 31 and the annular chain 33 that meshes with it and is wound around the periphery of the rotary treatment tank 20.

[0075] Taking an example of detecting the entry of a user into the toilet 100 by the opening and closing of the doors 141 and 142, the toilet 100 has, for example, a door opening / closing detection switch (not shown), which is a limit switch linked to the opening and closing operation of the doors 141 and 142, and a control unit that, when detecting the opening of the door by the door opening / closing detection switch, energizes the motor 31 in response to the signal of the door opening / closing detection switch to drive the motor 31. When the opening and closing of the doors 141 and 142 are detected by the door opening / closing detection switch, the control unit drives the motor 31, whereby the rotary treatment tank 20 and the main cutter 73 inside the rotary treatment tank 20 are rotationally driven. Further, the control unit also energizes the air compressor 81 and the heater 82 in response to the signal of the door opening / closing detection switch to drive the air compressor 81 and the heater 82.

[0076] Furthermore, the control unit has a timer. When a predetermined set time has elapsed since the door was opened or closed, the power supply to the motor 31, the air compressor 81, and the heater 82 is stopped, and the driving of the motor 31, the air compressor 81, and the heater 82 is stopped. The timer is, for example, a control circuit composed of a relay circuit, a sequencer, etc. It starts counting the set time based on the detection signal of the door opening / closing detection switch. During the counting, the power supply to the motor 31, the air compressor 81, and the heater 82 is continued, and the power supply is cut off after the set time has elapsed.

[0077] That is, when the opening and closing of the doors 141 and 142 are detected by the door opening / closing detection switch, the rotation processing tank 20 and the main cutter 73 inside the rotation processing tank 20 rotate due to the power supply to the motor 31. Also, hot air is supplied from the hot air blowing device 80 into the rotation processing tank 20 due to the power supply to the air compressor 81 and the heater 82. At the same time, the counting of the timer is started. Then, after the time set in the timer has elapsed, the power supply to the motor 31, the air compressor 81, and the heater 82 is cut off.

[0078] In this way, by the control of the timer, the power supply to the motor 31, the air compressor 81, and the heater 82 is continued for a predetermined time, and after the set time, the power supply 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 rotation processing tank 20 and preventing the occurrence of a fire caused by overheating of the bacterial bed 50. Also, unnecessary energy consumption can be reduced. Note that the control unit may drive the motor 31, the air compressor 81, and the heater 82 for a certain period when the opening and closing of the doors 141 and 142 are not detected by the door opening / closing detection switch for a certain period, or at predetermined set times such as at night. Thereby, the death of microorganisms in the bacterial bed 50 can be prevented, and the decomposition treatment performance can be maintained for a long time.

[0079] In the bio-toilet 100 according to the present embodiment, as the power source for driving the motor 31 that rotationally drives the rotary treatment tank 20, the hot air blower 80, etc., an AC power source may be used, or a power source by solar power generation (photovoltaic power generation) or wind power generation may be used. By providing a self-power generation facility that generates electric power using solar cells or wind turbines for the rotational drive of the rotary treatment tank 20 and the blowing and heating of the hot air blower 80, etc., power supply work for auxiliary equipment is unnecessary, and installation in a place where power supply is not possible becomes possible. That is, when the electric power used in the bio-toilet 100 is generated by solar cells and / or wind turbines, compared to the case where there is no power supply equipment and power supply work needs to be carried out from a long distance, the installation cost of the bio-toilet 100 can be reduced, and furthermore, since power supply work is unnecessary, it becomes possible to install the bio-toilet 100 in an installation location where power supply work is difficult. Note that when it is a power generation method that combines solar cells and wind turbines, the supply of electric power becomes more stable. Also, if the electricity generated by solar cells or wind turbines is charged into a storage battery, it is possible to drive the rotary treatment tank 20, etc. by discharging from the storage battery even at night or when there is no wind, and it becomes possible to decompose excrement and urine more stably.

[0080] In particular, in the present embodiment, the rotary treatment tank 20 is rotated by one motor 31 by a gear transmission mechanism of an annular chain 33 formed with meshing teeth 33A of an equal pitch interval that are provided over the entire circumference on the circumferential surface of the sprocket 32 attached to the output shaft 31a of the motor 31 and the rotary treatment tank 20 and have more teeth than the sprocket 32, and the main cutter 73 is also rotated by the gear transmission mechanism of the annular chain 33 and the sprocket 71. Since the rotary treatment tank 20 that houses the bacterial bed 50 generates a large torque with less electric power to achieve energy saving, a solar power generation or wind power generation system can also be small-scale.

[0081] Thus, in the bio-toilet 100 according to the present embodiment, when the opening and closing of the doors 141 and 142 of the bio-toilet 100 are detected for using the bio-toilet 100, in the decomposition processing device 10, the motor 31 is driven, and the rotary processing tank 20 is rotationally driven via the sprocket 32 attached to the output shaft 31a of the motor 31 and the annular chain 33 formed on the entire circumference of the upper edge of the rotary processing tank 20 that meshes with the sprocket 32. Further, the main cutter 73 of the cutter unit 70 provided in the rotary processing tank 20 is rotationally driven via the sprocket 71 meshing with the annular chain 33 in the rotary processing tank 20 and its rotating shaft 72. Furthermore, the air compressor 81 and the heater 82 of the warm air blowing device 80 are driven, and warm air is supplied into the rotary processing tank 20.

[0082] Therefore, the excrement, urine, and toilet paper that have fallen from the toilets 111 and 112 installed on the upper surface portion 40c of the base 40 into the rotary processing tank 20 move together with the bacterial bed 50 accommodated therein due to the rotation of the rotary processing tank 20 receiving the driving force of the motor 31, and are stirred together with the bacterial bed 50 by the stirring unit 60 at a fixed position in the rotary processing tank 20. Thus, the decomposition of the dirt of excrement, urine, and toilet paper by the microorganisms adhering to and colonizing on the bacterial bed 50 is promoted. That is, when the rotary processing tank 20 rotates, the bacterial bed 50 containing microorganisms and the dirt in the rotary processing tank 20 also rotate, and the bacterial bed 50 and the dirt are relatively stirred by the stirring blades 63 of the stirring unit 60 fixed in the rotary processing tank 20. By such stirring, the uniform mixing and dispersion of the bacterial bed 50 containing microorganisms and the dirt are promoted, and the air (oxygen) necessary for the growth and activity of the microorganisms is supplied. Therefore, the fermentation decomposition treatment of the dirt by the microorganisms is promoted.

[0083] Also, at this time, since warm air is supplied into the rotary processing tank 20 by the warm air generating device 80, air (oxygen) is supplied into the bacterial bed 50 accommodated in the rotary processing tank 20, and further, the bacterial bed 50 is heated, so that the microorganisms are more likely to grow and proliferate, and the decomposition of the dirt by the microorganisms is further promoted. That is, when it is detected that the user of the bio-toilet 100 has opened and closed the doors 141 and 142 and entered the room, at the same time as the motor 31 is driven, hot air is ejected from each ejection hole 84a of the hollow pipe 84 disposed on the bottom surface side in the rotary treatment tank 20 by driving the air compressor 81 and the heater 82 toward the bacterial bed 50 in the rotary treatment tank 20. Thereby, air (oxygen) necessary for the growth and activity of microorganisms is supplied, and it is heated to a temperature suitable for the growth and activity of microorganisms, so that the decomposition of dirt by microorganisms is further promoted. In addition, it promotes the drying of the bacterial bed 50 and prevents a decrease in the decomposition treatment efficiency due to excessive moisture.

[0084] Furthermore, in the rotary treatment tank 20, since the cutter unit 70 is provided at a fixed position, the main cutter 73 and the sub-cutter 77 of the cutter unit 70 finely cut the toilet paper and the bacterial bed 50 that has become lumps containing moisture. At this time, the main cutter 73 is attached to the rotary shaft 72 of the sprocket 71 that meshes with the annular chain 33 provided around the upper edge of the rotary treatment tank 20 on the inner peripheral side thereof. Thus, by driving the motor 31, it rotates together with the rotation of the rotary treatment tank 20. Therefore, by the rotation of the main cutter 73, the toilet paper and the lumps of the bacterial bed 50 can be made finer more quickly. Further, after the rotational driving of the rotary treatment tank 20, the main cutter 73, and the sub-cutter 77 and the driving of the hot air blower 80 are stopped, the solenoid valve 92 of the moisture application device 90 opens, and water droplets are supplied into the bacterial bed 50, specifically, to the stirring blade 63, the main cutter 73, and the sub-cutter 77. Thus, the toilet paper becomes more likely to get wet. Therefore, it is possible to dissolve the toilet paper more quickly.

[0085] Therefore, according to the decomposition treatment device 10 of the present embodiment, before the toilet paper introduced into the rotary treatment tank 20 dries, it can be made finer and decomposed more quickly. Thus, it is possible to effectively prevent the generation of bad odors due to the remaining toilet paper and a decrease in the decomposition treatment efficiency. By dissolving the bacterial bed 50 that has become lumps containing moisture, it is also possible to prevent a decrease in the decomposition treatment efficiency.

[0086] Note that, as described above, the control unit that receives signals from sensors for detecting the opening and closing of the doors 141 and 142 of the biotoilet 100 and controls the motor 31, the air compressor 81, the heater 82, the solenoid valve 92, etc. is provided with a timer and is set to stop their driving after a predetermined time has elapsed. That is, the motor 31, the air compressor 81, the heater 82, the solenoid valve 92, etc. stop after operating for the time set by the timer from the initial startup of the opening and closing operation of the doors 141 and 142 of the biotoilet 100. Note that the set times for stopping by the timer for the operations of the motor 31, the air compressor 81, the heater 82, and the solenoid valve 92 may be the same or different.

[0087] Furthermore, for example, even when the timer of the heater 82 is counting, based on the measurement by the temperature sensor installed in the rotary treatment tank 20, when the temperature reaches a predetermined temperature or higher, the power supply to the heater 82 may be cut off to prevent overheating. Note that normally, the motor 31, the air compressor 81, the heater 82, the solenoid valve 92, etc. are set to automatically drive when it is detected that a user has entered the toilet, or to automatically drive at a predetermined time. In addition, they can also be driven by the administrator manually operating the power switches of each device. Also, when the biotoilet 100 is not used for a long time and the decomposition treatment device 10 is not operated for a long time, it is preferable to operate the decomposition treatment device 10 regularly. This can prevent the microorganisms in the microbial bed 50 in the rotary treatment tank 20 from dying and the decomposition treatment ability from decreasing. At this time, the administrator side of the biotoilet 100 may operate the decomposition treatment device 10 regularly, or the control unit may control so that the motor 31 etc. are energized and operate at regular time intervals.

[0088] Thus, in the bio-toilet 100 according to the present embodiment, after the doors 141 and 142 are opened, the rotary treatment tank 20 rotates by driving the motor 31 for a predetermined time, and the excrement, urine, and toilet paper that have fallen into the rotary treatment tank 20 from the openings of the toilets 111 and 112 through the openings 41 and 42 of the base 40 are stirred by the stirring blades 63 at fixed positions in 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 the heater 82 of the hot air blower 80.

[0089] Therefore, by stirring the dirt by the stirring blades 63 and supplying hot air into the bacterial bed 50 by the hot air blower 80, air (oxygen) is supplied to the microorganisms in the bacterial bed 50 in the rotary treatment tank 20, and the decomposition of the dirt by the microorganisms is promoted. Further, by supplying hot air into the rotary treatment tank 20 by the hot air blower 80 and by the heat generated by the decomposition of the dirt by the microorganisms, the bacterial bed 50 in the rotary treatment tank 20 reaches a temperature suitable for the growth of the microorganisms, and the decomposition of the dirt by the microorganisms is further promoted. Also, the generation of odors due to excessive moisture can be prevented.

[0090] Thus, in the decomposition treatment device 10 of the present embodiment, an environmental state in which microorganisms can actively grow is maintained in the rotary treatment tank 20, and the excrement and urine that have fallen from the toilets 111 and 112 into the rotary treatment tank 20 are 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, in addition to the microorganisms inoculated in the bacterial bed 50, the decomposition of the excrement and urine is also promoted by the microorganisms such as intestinal bacteria in the feces. Also, the bacterial bed 50 containing the residue after the excrement and urine are decomposed by the fermentation of the microorganisms is likely to kill the miscellaneous bacteria due to the heat generated during the fermentation process of the microorganisms, and can be suitably used as a fertilizer or soil conditioner containing nitrogen, phosphorus, potassium, organic matter, etc. That is, by simply adding microorganisms to the bacterial bed 50 regularly or replacing the bacterial bed 50, the decomposition treatment of the excrement and urine by the microorganisms can be maintained, and the bacterial bed 50 containing the residue after the decomposition treatment can be used as a fertilizer or soil conditioner, so it is environmentally friendly.

[0091] Further, when the rotary treatment tank 20 rotates due to the drive of the motor 31, the toilet paper is shredded by the main cutter 73 and the sub-cutter 77 which are at fixed positions in the rotary treatment tank 20. In particular, when the rotary treatment tank 20 rotates due to the drive of the motor 31 and at the same time the main cutter 73 rotates, the toilet paper and the lumps of the bacterial bed 50 can be made finer and faster. Furthermore, after the doors 141, 142 of the biotoilet 100 are opened, the rotary treatment tank 20 and the main cutter 73 are rotationally driven for a predetermined time, and the warm air blower 80 is driven. After their drives are stopped, the solenoid valve 92 of the water supply device 90 opens, and water from the tank 91 drips onto the stirring blade 63, the main cutter 73, and the sub-cutter 77. Thus, in addition to the moisture of the excrement and urine, water from the tank 91 can be applied to the toilet paper. Therefore, the toilet paper can be dissolved more quickly. Therefore, it is possible to effectively prevent the generation of bad odors and a decrease in the decomposition treatment efficiency by preventing the residue of the toilet paper.

[0092] In the decomposition processing apparatus 10 of the present embodiment, the bottomed cylindrical rotating processing tank 20 that houses the bacterial bed 50 containing microorganisms and decomposes the input excrement and urine by the microorganisms is rotated about the vertical virtual central axis. Thus, the stirring blade 63 at a fixed position in the rotating processing tank 20 stirs the bacterial bed 50 and the excrement and urine in the rotating processing tank 20. Therefore, since the stirring blade 63 itself does not rotate, and it is not rotated on a rotating table that is rotationally driven by a rotating shaft, in order to secure the internal volume for accommodating a predetermined amount of the bacterial bed 50 to obtain a predetermined decomposition processing capacity, the width direction (diameter direction of the cylinder) of the rotating processing tank 20 may be widened, and the height of the rotating processing tank 20 is not required. That is, in the case of rotating the stirring blade itself around a horizontal axis, the height of the processing tank for rotating the stirring blade is required, and in the case of rotating the stirring blade itself extending in the horizontal direction, a load torque is applied to the stirring blade disposed in the bacterial bed 50, and a large driving force is required. Therefore, when securing a predetermined internal volume for accommodating the bacterial bed 50 to obtain a predetermined decomposition processing ability, it is preferable to increase the height rather than widen the width of the processing tank. On the contrary, in the decomposition processing apparatus 10 of the present embodiment, since the rotating processing tank 20 itself rotates, it can be dealt with by widening the width without increasing the height of the rotating processing tank 20 in order to secure the internal volume for accommodating a predetermined amount of the bacterial bed 50 to obtain a predetermined decomposition processing capacity. Furthermore, since the rotating processing tank 20 is not placed on a rotating table that is rotationally driven by a rotating shaft and rotated, and a rotating table that is rotationally driven by a rotating shaft and a means for attaching and detaching the rotating processing tank 20 to and from the rotating table are not required, the number of parts can be reduced, and energy-saving design is enabled, and cost reduction can be achieved.

[0093] Therefore, the installation surfaces of the toilets 111 and 112 can be designed with a low floor without raising them too much from the installation floor of the bio-toilet 100, making it possible to easily and smoothly enter and exit the bio-toilet 100. Thus, the burden on the user can be reduced, and it becomes possible to meet the barrier-free requirement with few steps. Also, since the overall height dimension of the bio-toilet 100 can be made relatively low, when it is transported to the installation location by a truck, even if it is placed vertically on the truck bed, it can pass through a tunnel with a low height limit, making it possible to reduce the transportation cost. That is, while ensuring a predetermined processing capacity, it is possible to suppress the transportation height within the legal loading dimensions of the truck. Also, if the rotating treatment tank 20 is widened, as described above, in the bio-toilet 100, the urinal 111 and the Western-style toilet 112 are provided, and the waste excreted into them is received by the common rotating treatment tank 20 and can be decomposed by the microorganisms in the biofilm 50 of the rotating treatment tank 20.

[0094] In particular, in the decomposition treatment device 10 of the present embodiment, an annular chain 33 is attached to the entire circumference of the upper edge of the bottomed cylindrical rotating treatment tank 20 that houses the biofilm 50 containing microorganisms and decomposes the excrement and urine input by the microorganisms. A sprocket 32 having fewer teeth than the number of teeth of the annular chain 33 is meshed with the annular chain 33, and the sprocket 32 is attached to the drive shaft 31a of the motor 31. Therefore, the rotating treatment tank 20 can be rotationally driven by a small power and electric power of the motor 31 through a gear transmission mechanism that transmits the driving force of the motor 31 from the sprocket 32, which is a small gear, to the annular chain 33, which is a large gear. That is, the rotating treatment tank 20 can be rotationally driven with less energy consumption, achieving energy saving and cost reduction in operation. And the one that transmits the driving force of the motor 31 by the gear transmission mechanism including the annular chain 33 attached to the entire circumference of the circumferential surface along the upper edge of the rotating treatment tank 20 and the sprocket 32 meshing with the outer peripheral side of the annular chain 33 and having fewer teeth than the annular chain 33 has a simple structure and can have a small number of parts, so the manufacturing cost can also be low.

[0095] In addition, such a bio-toilet 100 can decompose the waste put into the rotary treatment tank 20 by the microorganisms in the biofilter bed 50 in the rotary treatment tank 20, eliminating the need for pumping and water flushing. Therefore, it is suitable for installation and use at the construction sites of various buildings, the construction sites of civil engineering works, riverbeds, outdoor event and exhibition venues, etc. It is also suitable for installation at places without water supply and sewerage facilities, such as evacuation sites in disaster areas where water supply and sewerage facilities or septic tanks have been damaged by earthquakes, etc., temporary toilets for work installed at construction sites in mountainous areas, mountain huts in highlands, and places where the amount of available water is limited, such as vehicles, airplanes, ships, etc. In particular, when the power used in the bio-toilet 100 is generated by a solar cell or a wind power generator, no power supply work is required, so it is possible to install the bio-toilet 100 at installation sites where power supply work is difficult, such as coastal and beach parks like sandy beaches and islands, and mountain parks like mountains and plateaus where power supply work is difficult. Of course, when implementing the present invention, an AC power supply may be used, or it may be configured to be able to select between an AC power supply and a power supply by solar power generation or wind power generation.

[0096] As described above, the organic matter decomposition treatment device 10 of the above embodiment includes a bottomed cylindrical rotary treatment tank 20 that houses the biofilter bed 50 and into which excrement and urine as objects to be treated are input, a stirring unit 60 provided inside the rotary treatment tank 20 for stirring the biofilter bed 50 and the excrement and urine, a motor (electric motor) 31 as a drive source for rotationally driving 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 a meshing tooth 33A formed by an annular chain 33 provided on the circumferential surface of the rotary treatment tank 20, which meshes with the sprocket 32 and is provided on the circumferential surface of the rotary treatment tank 20 with a larger number of teeth than the sprocket 32 at an equal pitch interval over its entire circumference.

[0097] Therefore, according to the organic matter decomposition treatment apparatus 10 of the above embodiment, a sprocket 32 attached to the output shaft 31a of a motor 31, which is a drive source for rotationally driving a bottomed cylindrical rotary treatment tank 20 that houses a bacterial bed 50 and into which excrement and urine, which are organic matter, are introduced, meshes with meshing teeth 33A of an endless chain 33 provided at equal pitch intervals over the entire circumference on the circumferential surface of the rotary treatment tank 20 and having more teeth than the number of teeth of the sprocket 32. Thus, the driving force of the motor 31 is transmitted to the rotary treatment tank 20 by a gear transmission mechanism including the sprocket 32 attached to the output shaft 31a of the motor 31 and the endless chain 33 arranged annularly on the circumferential surface of the rotary treatment tank 20 and having meshing teeth 33A with more teeth than the sprocket 32. Therefore, the rotary treatment tank 20 can be rotationally driven with a small driving force of the motor 31 and low energy consumption. Due to the rotation of the rotary treatment tank 20, the bacterial bed 50 and excrement and urine in the rotary treatment tank 20 are stirred by the stirring blades 63 of the stirring unit 60 provided in the rotary treatment tank 20. Therefore, the rotary treatment tank 20 can be rotated with a small driving force and electric power, and the bacterial bed 50 and excrement and urine in the rotary treatment tank 20 can be stirred by the stirring unit 60 due to the rotation of the rotary treatment tank 20. Thus, energy savings and cost reduction can be achieved.

[0098] And, since the bacterial bed 50 and excrement and urine are stirred by the stirring unit 60 at a fixed position in the rotary treatment tank 20 by rotating the rotary treatment tank 20, the height of the rotary treatment tank 20 can be suppressed, and since the height of the installation surface of the toilets 111, 112 installed above the rotary treatment tank 20 can be suppressed, it becomes possible to also accommodate a barrier-free design that does not require the installation of elevating sections such as stairs.

[0099] Further, according to the organic matter decomposition treatment apparatus 10 of the above embodiment, the meshing teeth 33A are formed by the endless chain 33 attached along the entire circumference of the circumferential surface of the rotary treatment tank 20, and the gear meshing with the meshing teeth 33A is formed by the sprocket 32. In the case of the endless chain 33, since it can be attached only by adjusting the length of the chain corresponding to the circumference of the rotary treatment tank 20, it is easy to obtain one corresponding to the circumference of the rotary treatment tank 20.

[0100] Furthermore, in the case of a chain, by using a double-sided meshing type, a transmission mechanism is configured to transmit the driving force of the motor 31 to the rotary treatment tank 20 by meshing the meshing teeth 33A on the outer peripheral surface side with the sprocket 32. On the other hand, by separately meshing a sprocket (pinion) 71 with the meshing teeth 33B on the inner peripheral surface side, as the rotary treatment tank 20 rotates, the main cutter 73 disposed in the rotary treatment tank 20 and attached to the rotary shaft 72 of the sprocket (internal gear) 71 can be rotated to break up the toilet paper and the mass of the bacterial bed 50. Therefore, it is possible to improve the decomposition performance with low power and low energy consumption.

[0101] According to the organic matter decomposition treatment apparatus 1 of the above embodiment, further, since the cutters 73 and 77 provided inside the rotary treatment tank 20 are provided, in the bio-toilet 100, the toilet paper and the mass (lump) of the bacterial bed 50 introduced into the rotary treatment tank 20 together with excrement and urine can be broken up by the main cutter 73 and the sub-cutter 77. Therefore, it is possible to prevent the remaining of toilet paper, the generation of bad odor due to the mass of the bacterial bed 50, and the reduction of the decomposition treatment efficiency.

[0102] According to the organic matter decomposition treatment apparatus 1 of the above embodiment, further, as a cutter transmission mechanism that transmits the rotation of the rotary treatment tank 20 to the main cutter 73 and rotates the main cutter 73, it includes a sprocket 71 as a gear for cutter that meshes on the inner peripheral surface side of the annular chain 33 attached to the entire circumference of the circumferential surface of the upper edge portion of the rotary treatment tank 20, and a rotary shaft 72 to which the sprocket 71 as a gear for cutter is fixed and the main cutter 73 is attached.

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

[0104] Therefore, since the main cutter 73 can be rotated by the motor 31 of the drive source common to the rotational driving force of the rotary treatment tank 20, the toilet paper and the lumps (clumps) of the bacterial bed 50 can be made finer more quickly without consuming separate energy. In particular, since the main cutter 73 is rotated by the sprocket 71 as a cutter gear that meshes with the meshing teeth 33B on the inner peripheral surface side of the annular chain 33 and the rotary shaft 72 to which the sprocket 71 is fixed, the rotation mechanism for rotating the main cutter 73 also has a simple configuration and requires fewer parts.

[0105] However, when implementing the present invention, it is not limited to rotating the main cutter 73 by the gear mechanism of the meshing teeth 33B formed at equal pitch intervals over the entire circumference along the circumferential surface of the rotary treatment tank 20 and the sprocket 71 meshing therewith. The rotation of the rotary treatment tank 20 may be transmitted to the cutter part 70 by another mechanism. For example, the meshing teeth 33A formed at equal pitch intervals over the entire circumference along the circumferential surface of the rotary treatment tank 20 are provided around the bottom side of the rotary treatment tank 20, and the rotation of the rotary treatment tank 20 is transmitted to the cutter part 70 by a belt and a pulley in contact therewith on the inner peripheral surface of the upper side of the rotary treatment tank 20, and the cutter part 70 may be rotated as the rotary treatment tank 20 rotates.

[0106] Alternatively, the driving force of the motor 31 may be transmitted to the cutter unit 70 by another transmission mechanism. For example, as shown in FIG. 5, another sprocket 78 having more teeth than the sprocket 31 is attached to the output shaft 31a of the motor 31, and a chain 79 is looped around the sprocket 78 and the sprocket 71 of the cutter unit 70. Thus, the driving force of the motor 31 may be transmitted to the main cutter 73 via the sprocket 78, the chain 79, and the sprocket 71 to rotationally drive 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 the sprocket 78 attached to the output shaft 31a of the motor 31, the sprocket 71 having fewer teeth than the sprocket 78, and the chain 79 looped between them, the rotational speed of the rotation processing tank 20 and the main cutter 73 can be made different. In particular, since the rotational speed of the main cutter 73 can be made faster than the rotational speed of the rotation processing tank 20, it becomes possible to make the toilet paper and the mass of the bacterial bed 50 finer and faster. Also, it is possible to make the movement (feeding) of the bacterial bed 50 faster.

[0107] According to the organic matter decomposition apparatus 1 of the above embodiment, further, since it is equipped with a water supply device 90 as a water supply means for dripping water onto the cutters 73 and 77 of the stirring unit 60 and / or the cutter unit 70, water can be added to the toilet paper, making the toilet paper easier to break up. Therefore, it is possible to further prevent the generation of bad odors and the reduction of decomposition processing efficiency due to the remaining toilet paper. In particular, by dripping water onto the cutters 73 and 77 of the stirring unit 60 and / or the cutter unit 70 where the toilet paper is likely to get entangled, water can be efficiently added to the toilet paper.

[0108] According to the organic matter decomposition treatment apparatus 1 of the above embodiment, since the bottom of the rotary treatment tank 20 is rotatably supported by the ball rollers 47, the load torque of the rotary treatment tank 20 can be reduced. Therefore, the rotary treatment tank 20 can be rotationally driven with a smaller driving force, electric power, and less energy consumption, and further energy savings can be achieved.

[0109] When implementing the present invention, if the rotary treatment tank 20 can be rotatably supported, it is not limited to the ball rollers 47. For example, as shown in FIG. 6, it is also possible to use an annular rotating body 48. This annular rotating body 48 has a plurality of bearings (not shown) annularly arranged and housed in a space with a substantially rectangular cross-section 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 configured to be rotatable with respect to the lower annular member 48b. As such an annular rotating body 48, for example, Mawarru (registered trademark) manufactured by Osaka Taiyu Co., Ltd. can be used. Place the annular rotating body 48 on the bottom surface portion 40a of the base 40, place the rotary treatment tank 20 on the annular rotating body 48, and support the rotary treatment tank 20 so as to be rotatable by the annular rotating body 48, thereby enabling the rotation of the rotary treatment tank 20 with a smaller load torque. Therefore, the rotary treatment tank 20 can be rotationally driven with a smaller driving force, power, and less energy consumption, and further energy savings can be achieved. Note that the rotating body 48 may be a circular turntable.

[0110] Also, according to the organic matter decomposition treatment apparatus 1 of the above embodiment, the stirring blades 63 of the stirring unit 60 extend from the upper side to the bottom side of the rotary treatment tank 20 inside the rotary treatment tank 20, and the tip end side thereof is shaped to scoop up the bacterial bed 50 and dirt in the rotary treatment tank 20, so the stirring efficiency is good. Therefore, the decomposition treatment efficiency can be increased, and energy savings can also be achieved.

[0111] Furthermore, when implementing the present invention, as shown in FIG. 6, a stirring rod 69 that extends substantially horizontally in the radial direction of the rotary treatment tank 20 may be provided on the bottom surface side inside the rotary treatment tank 20. This can enhance the stirring effect on the bacterial bed 50 and the contaminants. The stirring rod 69 is made of a substantially prismatic material such as stainless steel, and is formed by being fixed to the bottom surface inside the rotary treatment tank 20 by welding or the like. For example, it is arranged in a substantially linear shape, a substantially cross shape, a radial shape, etc. This increases the stirring efficiency around the virtual central axis of the rotary treatment tank 20, and improves the overall stirring efficiency of the bacterial bed 50 and the contaminants. In addition, by providing an inclined surface on the stirring rod 69, the stirring efficiency can be further enhanced.

[0112] By the way, in the above embodiment, the stirring blades 63 of the stirring unit 60 provided inside the rotary treatment tank 20 are attached and fixed to the upper surface portion 40c of the base portion 40 via the horizontal portion 62, so that they are provided at a fixed position inside the rotary treatment tank 20, are not fixed to the rotary treatment tank 20, and do not move by the rotational drive of the fixed treatment tank 20. However, when implementing the present invention, like the above-described main cutter 73, the stirring blades 63 may be rotated or swung at a fixed position inside the rotary treatment tank 20 as the rotary treatment tank 20 rotates, or the stirring blades 63 may move (rotate) around the virtual central axis of the rotary treatment tank 20 at a rotational speed different from that of the rotary treatment tank 20 inside the rotary treatment tank 20.

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

[0114] However, when the annular chain 33 is attached to the circumferential surface of the upper edge portion of the rotary treatment tank 20, a sprocket 71 is meshed with the inner peripheral surface side of the annular chain 33, and a main cutter 73 is attached to the rotation axis 72 of the sprocket 71. Thus, with the driving force of the motor 31, which is a common driving source, the main cutter 73 can be rotated together with the rotation of the rotary treatment tank 20. As a result, it becomes possible to more quickly and finely shred the toilet paper or the lumps of the bacterial bed 50 introduced into the rotary treatment tank 20. Further, since the gear transmission mechanism for rotationally driving the main cutter 73 is configured to mesh the sprocket 71 with the inner peripheral surface side of the annular chain 33, there is no risk of abrasion to the rotary treatment tank 20 or the like.

[0115] In the above-described embodiment, by attaching the annular chain 33 to the circumferential surface of the upper edge portion of the rotary treatment tank 20, it meshes with the sprocket 32 as a gear attached to the output shaft 31a of the motor 31 serving as the driving source, and meshing teeth 33A are formed continuously over the entire circumference on the circumferential surface of the rotary treatment tank 20 at an equal pitch interval and with a larger number of teeth than the sprocket 32 and arranged in an annular shape. However, when implementing the present invention, meshing teeth 33A may be formed by attaching a gear formed in an annular shape to the circumferential surface of the rotary treatment tank 20. In this case, a gear that meshes with the annular gear provided on the circumferential surface of the rotary treatment tank 20 is attached to the output shaft 31a of the motor 31 serving as the driving source.

[0116] In the above-described embodiment, as the heating means, warm air is supplied to the bacterial bed 50 in the rotary treatment tank 20 by the warm air blower 80, and the inside of the bacterial bed 50 in the rotary treatment tank 20 is heated to a predetermined temperature (for example, 30°C to 40°C) at which microorganisms actively move. However, when implementing the present invention, if the bacterial bed 50 in the rotary treatment tank 20 can be heated to a predetermined temperature, the heating means is not limited to the warm air blower 80. For example, a heat medium such as a heater, a planar heating element, a heating wire, or warm water may be provided in the rotary treatment tank 20 or its surroundings, or in the stirring unit 60 for heating, or the inside of the rotary treatment tank 20 may be heated by supplying warm water. Further, a heat insulating material may be provided in the rotary treatment tank 20 to enhance the heat retention effect. In addition, a temperature sensor may be provided to perform heating control to prevent overheating. However, when implementing the present invention, the heating means may be omitted. Also, in the above-described embodiment, air (oxygen) is supplied to the bacterial bed 50 in the rotary treatment tank 20 by blowing warm air, but when implementing the present invention, this may be omitted. Furthermore, when implementing the present invention, it is also possible to omit the cutter unit 70.

[0117] In the bio-toilet 100 of the above-described embodiment, a urinal 111 for men and a Western-style toilet 112 are provided, and the waste excreted into the urinal 111 for men and the Western-style toilet 112 is received in a common rotary treatment tank 20, thereby saving space. However, when implementing the present invention, it may be received in separate rotary treatment tanks 20 for each of the toilets 111 and 112. Further, in the bio-toilet 100 of the above-described embodiment, an example including a urinal 111 for men and a Western-style toilet 112 is shown. However, when implementing the present invention, it is not limited thereto, and it may be only one toilet, or may include three or more toilets. Of course, it may be a Japanese-style toilet. The building 110 may be transported to the installation site in an assembled state as an industrial product manufactured in a factory, or may be assembled at the installation site and the decomposition treatment device 10 may be incorporated therein. Further, in the above-described embodiment, the rotary treatment tank 20 is described as being formed of a steel material such as stainless steel. However, when implementing the present invention, the constituent material is not particularly limited, and it may be made of wood, plastic, or the like.

[0118] The bio-toilet 100 of the above-described embodiment is mainly installed outdoors and is a relatively large one assuming use by an unspecified large number of people. However, when implementing the present invention, it can be applied to a portable type bio-toilet assuming use indoors for household use. This portable type bio-toilet is used, for example, in a household where there are people who have difficulty walking independently, such as care recipients or the elderly, and is installed in the living room or bedroom of care recipients or the like. It is suitable for cases where it is impossible to go to the toilet at bedtime or the like, or where it takes a long time to go to the toilet because a cane or the like is used. According to a portable type bio-toilet that decomposes excrement and urine by microorganisms, it is not necessary for a caregiver to process excrement and urine, and the burden on the caregiver can be reduced.

[0119] Further, in the above-described embodiment, the organic matter decomposition treatment device of the present invention is described as being applied to the bio-toilet 100 as a decomposition treatment device for excrement and urine. However, when implementing the present invention, it can also be applied to a food waste treatment machine for general households or business use, etc., and used as a decomposition treatment device that decomposes organic waste such as food waste by microorganisms. In addition, when implementing the present invention, the configuration, material, size, connection relationship, etc. of other parts of the organic matter decomposition apparatus are not limited to the above-described embodiments.

Explanation of Signs

[0120] 10 Organic matter decomposition apparatus 20 Rotation treatment tank 31 Motor (driving source) 31a Output shaft 33 Annular chain 33A Engaging teeth 32 Sprocket (gear) 47 Ball roller 60 Stirring part 73 Main cutter 77 Sub-cutter 71 Sprocket (cutter gear) 72 Rotation shaft (cutter rotation shaft) 90 Moisture application device (moisture application 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 gear meshing with the gear and provided on the circumferential surface of the rotary treatment tank at equal intervals over the entire circumference, the gear having a greater number of teeth than the gear; An organic matter decomposition treatment device comprising:

2. 2. The organic matter decomposition treatment device according to claim 1, wherein 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.

3. 2. The organic matter decomposition treatment apparatus according to claim 1, further comprising a cutter provided inside said rotary treatment tank.

4. 4. The organic matter decomposition treatment apparatus according to claim 3, further comprising a cutter transmission mechanism for transmitting the rotation of said rotary treatment tank to said cutter.

5. 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; 5. The organic matter decomposition treatment apparatus according to claim 4, wherein the cutter is attached integrally to the rotary shaft.

6. 4. 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.

7. 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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