Agitator for a composting toilet

Abstract

A stirrer (1) with a container (2) and a stirring shaft (3) characterized in that the container (2) has a round bottom following the radius of the stirring blades (4), so that the stirring blades always have the same distance to the container wall and make ideal use of the substrate.

Description

[0001] The invention relates to specific features of an agitator for composting toilets. Since coconut coir is most commonly used in composting toilets, the agitator must be able to optimally mix the solids. Furthermore, the agitator should be designed to be as technically simple as possible. To facilitate cleaning, the agitator shaft should offer minimal resistance to the material during emptying. To ensure long-term use, the agitator should be made of high-alloy steel to prevent corrosion and withstand continuous use.

[0002] For ideal mixing, not only the agitator shaft but also the shape of the container is crucial. If the agitator base is shaped as a radius, no material remains in the corners, and the entire substrate in the container is optimally utilized. Tests have identified a favorable shape for both 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. Ideally, the container base should match the radius of the impeller blades. This ensures good incorporation of all material and thorough mixing. The number and thickness of the impeller blades are also crucial for the mixing result, as is the distance between the impeller blades and the container. A small distance to the housing has proven ideal.

[0004] Equally important is the ease of handling the container when emptying it and when inserting it into the composting toilet.

[0005] In the described agitator, the motor is permanently attached to the container, which is a significant advantage in terms of smooth operation and lifespan. Furthermore, the entire agitator can be easily replaced in the event of a repair.

[0006] Electrical contacts for positive and negative terminals must also be provided for the motor attached to the agitator. These are ideally located near the motor. The corresponding contacts are located on the housing of the composting toilet.

[0007] To ensure that the agitator has a secure hold in the toilet housing, even when upside down, fastening elements are required. Fig. 1. Agitator in cross-section in side view, container with agitator shaft and agitator blades, Fig. 2. Agitator from the side with feet, fastening elements and retaining bracket with stops Fig. 3. Stirrer in cross-section from the front with motor and contacts Fig. 4 electrical contacts of the motor Fig. 5. Perspective view of the agitator

[0008] Fig. Figure 1 shows the container with radius base (2), with stirring shaft (3) and stirring blades (4), with a constant distance to the container base.

[0009] Fig. Figure 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)

[0010] Fig. Figure 3 shows the agitator (1) in cross-section from the front, the container with its radiused bottom (2), the agitator shaft (3), and the agitator blades (4). The cross-section also shows the adjusting screws (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).

[0011] Fig. Figure 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) which is attached to the insulator (19) of the motor-side housing wall.

[0012] Fig. Figure 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 the fingers, as well as the handles (7) mounted between the feet (6). Reference symbol list 1 agitator 2 containers with radius bottoms 3 Stirring shaft 4 stirring blades 5 folding bars 6 feet 7 handholds on the floor 8 fasteners 9 engine 10 Electrical motor contacts 11 spring elements for contacts 12 Contact area 13 spring 14 cable connection 15 cables 16 Electrical housing contacts 17 stops for folding brackets 18 insulators 19 Insulator housing wall (of the composting toilet) 20 Housing wall (of the composting toilet)

Claims

[1] Agitator (1) with a container (2) and a stirring shaft (3) characterized by , that the container (2) has a round bottom following the radius of the stirring blades (4), so that the stirring blades always have the same distance to the container wall and make ideal use of the substrate. [2] Stirring device (1) according to claim 1, characterized by that the motor is preferably permanently attached to the container. [3] Stirrer (1) according to claim 1, characterized by , that it has handles (7) for emptying. [4] Stirrer (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 cables. [5] Stirrer (1) according to claim 1, characterized by that the electrical contacts have a spring element [6] Stirrer (1) according to claim 1, characterized by that it has a folding bracket with fixed stops on the top.

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