Agitator for a composting toilet

Abstract

Agitator (1) with a container (2) and a stirring shaft (3), characterized in that the container (2) has a round bottom that follows the radius of the stirring blades (4). The stirring blades thus always maintain the same distance from the container wall and optimally utilize the substrate.

Description

[0001] The invention relates to special features of an agitator for separating composting toilets. Since coconut substrate is typically used in composting toilets, the agitator must be capable of optimally mixing the solids. Furthermore, the agitator should be as technically simple as possible. To ensure easy cleaning, the agitator shaft should offer as little resistance to the material as possible when emptying. To ensure long-term use, the agitator should be made of high-alloy steel to prevent corrosion and withstand constant stress.

[0002] For ideal mixing, not only the agitator shaft but also the shape of the container is crucial. If the agitator base is shaped like a radius, no material remains in the corners, and the entire substrate in the container is optimally utilized. Tests have determined a favorable shape for the agitator shaft and the container.

[0003] The agitator shaft should have as few impellers as possible, and the container should be adapted to the geometry of the agitator shaft. It has been found that the container bottom is adapted to the radius of the impeller fingers. This ensures good material transport and thorough mixing. The number and thickness of the impellers are also crucial for the mixing result, as is the distance between the impellers and the container. A distance of approximately 10 mm from the housing has proven to be ideal.

[0004] It is also important that the container is easy to handle when emptying it and when placing it in the composting toilet.

[0005] In the agitator described, the motor is permanently mounted on the container, which is a major advantage in terms of smooth operation and service life. Furthermore, the entire agitator can be easily replaced in the event of a repair.

[0006] For the motor attached to the agitator, electrical contacts for positive and negative voltages must also be created. These are ideally located near the motor. The counterparts are located on the housing of the composting toilet. Fig. 1 Agitator in section in side view, container with agitator shaft and agitator blades, Fig. 2 Agitator from the side with feet, fastening elements and holding bracket with stops Fig. 3 Agitator in section from the front with motor and contacts Fig. 4 electrical contacts of the motor Fig. 5 perspective view of the agitator

[0007] Fig. 1 shows the container with radius bottom (2), with agitator shaft (3) and agitator blades (4), with constant distance to the container bottom.

[0008] Fig. 2 shows the agitator (1) from the side, with fastening elements (8), feet (6), agitator shaft (3), folding bracket 5 and stops for folding bracket (17)

[0009] Fig. Figure 3 shows the agitator (1) in section from the front, the container with a radiused bottom (2), the agitator shaft (3), and the agitator blade (4). The section shows the adjustable feet (6) and the attached handles (7), the motor (9), and the electrical motor contacts (10) mounted below. Below the motor (9), on the housing wall (20) of the composting toilet, are the insulator 19 and the two electrical contacts (16).

[0010] Fig. 4 shows the motor (9) with two cable outlets to the electrical motor contacts (10), the two insulators (18) and the cable connections (14), as well as the two cables (15) that go to the electrical housing contacts (16), with springs for height compensation (13) and the housing-side insulator (19) that is attached to the insulator (19) of the motor-side housing wall.

[0011] Fig. 5 shows the agitator in perspective, with the container (2), the agitator shaft (3), the feet (6), the fastening elements (8), the folding bracket (5) and the stops (17) for limiting the folding bracket (5) against pinching of the fingers, as well as the handles (7) mounted between the feet (6). List of reference symbols 1 agitator 2 containers with radius bottom 3 agitator shaft 4 agitator blades 5 folding brackets 6 feet 7 handles on the floor 8 fasteners 9 Engine 10 Electrical motor contacts 11 spring elements for contacts 12 Contact surface 13 spring 14 Cable connection 15 cables 16 Electrical housing contacts 17 stops for folding brackets 18 insulators 19 Isolator housing wall (of the composting toilet) 20 Housing wall (of the composting toilet)

Claims

[1] Agitator (1) with a container (2), a stirring shaft (3), characterized by that the container (2) has a round bottom that matches the radius of the agitator blades (4). This ensures that the agitator blades always maintain the same distance from the container wall, making optimal use of the substrate. [2] Agitator (1) according to claim 1, characterized by that the motor is preferably firmly attached to the container. [3] Agitator (1) according to claim 1, characterized by that it has handles (7) for emptying. [4] Agitator (1) according to claim 1, characterized by that the motor has electrical contacts so that the agitator can be removed from the composting toilet without plugging or disconnecting the cable. [5] Agitator (1) according to claim 1, characterized by that the electrical contacts have a spring element [6] Agitator (1) according to claim 1, characterized by that it has a folding bracket with fixed stops on the top

Images