JP2005152515A - Simple biological toilet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple biological toilet capable of decomposing human shit or urine defecated into sawdust or woodchips accommodated in a toilet bowl by stirring the same through the rotation of stirring vanes, which can be easily replaced when they are eroded. <P>SOLUTION: The simple biological toilet having a chair form comprises a main body 1, into or from which the toilet bowl 14 can be put or taken out, a backrest 2 and armrests 3 and 3. The stirring vanes 15, 15, etc. are attached to shafts 16 with positioning spacers among them. Each stirring vane 15, 15, etc. has a square shaft hole 17 at the center thereof for allowing a shaft 16 having a square cross section to pass therethrough. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a simple biotoilet, and more particularly to a toilet that is convenient for nursing care.

  There are various types of simple toilets, and their forms vary depending on the application. A method for treating human excreta using sawdust in this simple toilet is known. It can be treated in the same way as when organic waste is recycled as odorless resources. Rather, human manure is broken down faster than raw garbage. Because human manure is mixed with billions of intestinal bacteria, these bacteria can efficiently propagate under the aerobic condition of sawdust matrix and rapidly decompose manure.

  Since a simple toilet for nursing care is installed in a room, the odor becomes a problem, so it is devised to eliminate the odor by the action of microorganisms. As in the case of treating garbage, the structure is such that most of the garbage is eliminated and the odor does not flow outside by stirring in a container. That is, sawdust containing microorganisms is put in a toilet containing human manure, and the manure and sawdust are slowly stirred by a stirring blade, and human manure is decomposed by microorganisms and a little residual waste Become.

By utilizing the characteristics of sawdust, such as porosity, high porosity, high water retention and drainage, it provides a place for aerobic bacteria and human manure is a matrix of sawdust that generates odor. It is quickly decomposed and disappears without it. Inorganic components such as nitrogen, phosphoric acid, and potassium in the decomposition residue are infiltrated into sawdust and finally become fertilizer, and sawdust becomes earthworm food and improves soil.
The biotoilet is characterized by the fact that it does not use water, does not need to be pumped, does not generate odors, and is used as a resource for manure, which protects the global environment and improves the water environment. Can be recycled as. By the way, in a conventional biotoilet, a stirring blade is attached to a shaft in a toilet bowl from which human excreta is discharged, and the stirring blade can be rotated together with the shaft by a motor.

Human waste excreted in the toilet bowl is agitated with the stored sawdust to promote the activity of microorganisms that are supplied with oxygen and inhabit the sawdust and decompose human waste in a short time. I can do it. However, the agitating blade is corroded by ammonia or the like contained in human excreta and damaged in a short period of time and must be replaced. Since the stirring blades are welded to the shaft, there is a problem that the shaft is replaced and maintenance costs increase.
"Human fermentation decomposition device" according to Japanese Patent No. 1630646

  Thus, the conventional biotoilet has the above problems. The problem to be solved by the present invention is this problem, and provides a simple biotoilet that can be easily replaced when a stirring blade is corroded and damaged.

  The simple biotoilet of the present invention includes a stirring blade that can be rotated in the toilet bowl. Although the stirring blade is attached to the shaft, it is inserted into the shaft without being welded as in the prior art. The shaft has a square cross section, a square shaft hole is formed in the center of the stirring blade, and the shaft is fitted into the shaft hole. A plurality of stirring blades are attached to the shaft, and spacers are interposed between the stirring blades to keep the spacing between the stirring blades.

  And both ends of the shaft are pivotally supported by bearings provided in the toilet and are driven to rotate by a motor. The rotation of the agitating blade is controlled so as to automatically rotate for a fixed time if the lid is closed after defecation, and thereafter periodically. Here, the number of shafts to which the stirring blades are attached is not limited and can be determined according to the size of the toilet bowl.

  And the simple type biotoilet of this invention comprises a chair form, and the toilet bowl from which human excrement is discharged | emitted is a drawer type, It is set as the structure where maintenance inspections, such as a stirring blade, are easy. Moreover, since it is a chair form, an armrest is provided in both sides, and the armrest is equipped with the handle at the time of standing up.

  The simple biotoilet of the present invention includes a stirring blade in a toilet bowl, and the stirring blade can be rotated by a motor. Therefore, human manure discharged to the toilet bowl is kneaded with sawdust by the rotation of the stirring blades, and is decomposed and processed by microorganisms that live in sawdust. Finally, it can be used as a fertilizer.

  A shaft hole is formed in the central boss of the stirring blade, a shaft having a square cross section is inserted into the shaft hole, and the stirring blade is attached to the shaft. When the stirring blade is corroded by ammonia or the like of human excreta, the stirring blade can be removed and replaced. Further, since the stirring blade is not welded to the shaft, there is no deformation due to welding heat, no distortion due to welding heat, and the stirring blade is excellent in durability.

  FIG. 1 shows the appearance (a front view and a side view) of a simple biotoilet according to the present invention. As is apparent from the figure, the chair is in the form of a main body 1, a backrest 2, and armrests 3 and 3. A toilet bowl is accommodated in the main body 1, and a toilet seat 4 is provided on the upper side of the main body 1. The toilet seat 4 is covered with a lid 5 indicated by a dotted line. Therefore, when using the toilet, the user can sit on the toilet seat 4 with the lid 5 opened.

  Handles 6 and 6 are attached to the outside of the armrests 3 and 3 in the simplified biotoilet of the present invention. The handle 6 has an L shape in which a grip 8 is provided at the tip of the arm 7. The handle 6 is attached to the shaft 9 of the armrest 3 and can swing so that its orientation can be changed. Therefore, when an elderly person or a physically handicapped person stands up from the toilet seat 4, the body can be supported by holding the grip portion 8 of the handle 6.

  FIG. 2 shows a rear view of the simplified biotoilet. A door 10 is attached to the back side of the main body 1 and can be opened and closed via hinges 11, 11 provided at the upper end. A toilet bowl is housed inside the main body 1, and the door 10 can be opened and pulled out. A switch 12 is attached to the back side of the main body 1 and a suction hose 13 that can suck the smell of human excreta discharged into the toilet is connected.

  FIG. 3 shows the toilet 14. The toilet bowl 14 is a box-type container, and is equipped with stirring blades 15, 15,. The stirring blades 15, 15,... Are attached to the shaft 16 and can be rotated with the rotation of the shaft 16. The human excreta discharged inside is stirred together with sawdust. By stirring, oxygen is supplied to the inside of sawdust and human excreta, and the decomposition rate is accelerated.

  FIG. 4 shows the stirring blade 15 alone, but it has a simple shape in which both end portions of an elongated rectangular plate are bent. A shaft hole 17 is provided through the center, and a shaft 16 can be inserted into the shaft hole 17. Here, since the shaft 16 has a square cross section and the shaft hole 17 is also square, if the shaft 16 fits into the shaft hole 17 and the stirring blade 15 is attached, the stirring blade 15 rotates together with the shaft 16. I can do it.

  3, two shafts 16 and 16 are attached in parallel, and both ends of the shaft 16 are rotatably supported by bearings 18 and 18, respectively. A motor 19 is provided outside the toilet, and the shaft 16 and the stirring blades 15, 15,... Can be rotated by the motor. A spacer is interposed between the stirring blades 15, 15... Attached to the shaft 16 so that the positions of the stirring blades 15, 15.

  Although the stirring blade 15 shown in FIG. 4 is very simple, it is only one specific example, and the shape is not limited. Further, when the capacity of the toilet 14 is large, three to five shafts are provided, and the number of stirring blades 15 attached to one shaft 16 can be increased. And the direction of the stirring blades 15, 15... Attached to the shafts 16, 16... Allows the sawdust and human excrement contained therein to be sufficiently stirred.

  This toilet 14 is accommodated in the main body 1 of a simple biotoilet. A rail is attached to the bottom of the main body so that it can be taken in and out by opening the door 10 provided on the back side.

The front view and side view of the simple type biotoilet which concern on this invention. The rear view of the simple type biotoilet which concerns on this invention. The internal structure of the toilet bowl. A specific example of a stirring blade.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Backrest 3 Armrest 4 Toilet seat 5 Lid 6 Handle 7 Arm 8 Handle 9 Axis
10 door
11 Hinge
12 switch
13 Suction hose
14 Toilet bowl
15 Stir blade
16 shaft
17 Shaft hole
18 Bearing
19 Motor

Claims (2)

In a simple biotoilet that contains sawdust, wood chips, etc. in a toilet and can disassemble and dispose of the discharged human excreta by rotating the stirring blades, the simple biotoilet forms a chair. And a main body, a backrest, and an armrest that can accommodate a toilet, and the stirring blade is attached to the shaft, a positioning spacer is provided between the stirring blades, and a square shaft hole is formed at the center of the stirring blade. A simple biotoilet that penetrates and has a shaft having a square cross section inserted through the shaft hole. The simple biotoilet according to claim 1, wherein a handle having a grip portion formed at the tip of the arm is attached to the outside of the armrest.

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