CZ34305U1 - Equipment for collecting dog excrement - Google Patents

Description

The technical solution relates to equipment for the accumulation of liquid and possibly also solid dog excrement for their further use.

Prior art

A large number of dogs live in households with people, who are walked during the walks of their owners in the city streets and parks. During the stay outside, the dogs take place in different places. Owners should collect excrement from their dogs and then throw it in the trash - that is, in a trash can or a garbage can for mixed municipal waste. It cannot be stated that every excrement is collected by the dog's owner and thrown away.

The problem that is difficult to solve is the urine of dogs. Urination in dogs is a genetically encoded designation of territory, communication, and an effort to "rewrite the signature" of a dog that urinated in the same place. Therefore, places where dogs urinate essentially become a dog toilet. These are often the walls and corners of buildings, trees, street lamps and similar places, which can be subjectively considered the boundaries of the territory. In nature, they are mostly tree trunks. As a result of the concentration of dog urine, these places are a source of odor, metal objects corrode and the building elements are disrupted by aggressive chemical components of urine and their oxidation.

Urine contains urea, which is significantly less toxic than ammonia, is an excellent source of nitrogen for plants, and can be a useful compost accelerator. In each city, the amount of potential fertilizer flows into the sewer every day, which is otherwise produced in chemical plants with high energy costs and a negative impact on the environment.

It is similar with dog excrement. Most of them end up in mixed municipal waste. This is biological waste, which is easily degradable by the anaerobic fermentation process, which produces biogas, ie biomethane. It is a renewable substitute for natural gas. Biogas plants or wastewater treatment plants with anaerobic sludge digestion are at a reasonable distance from each city.

The problem of liquid dog excrement is solved by the dog urinal described in EP 2499906. The dog urinal consists of a vertically erected tube, blinded at the top and bottom, the wall of which is provided with openings for the inflow of urine. The bottom of the pipe is a collecting tank provided with an overflow. Urine is drained into the sewer without further use.

The technical solution aims to design a device that would allow the use of especially liquid dog excrement.

The essence of the technical solution

This task is solved by a device for collecting dog excrement consisting of a hollow, top-closed column in the shape of a cylinder, polyhedron or cone provided with through holes on the casing, the essence of which is that the column is centrally built in a cylindrical container with perforated bottom and lid , between the bottom and the lid the container is fitted with a horizontal removable sieve on which a layer of sorbent is placed.

The sorbent is preferably a carbon-based material obtained by pyrolysis (carbonization, carbonization) of plant biomass or wood.

-1 CZ 34305 U1

In the case of a device in the design of a dog toilet, a permeable visible layer is placed on the lid.

The screen may advantageously be mounted on supports which protrude above the sorbent layer to facilitate handling.

The cylindrical container, lid and sieve are made of stainless steel.

The basic element of the device is a subsurface filter, which traps urea from the flowing urine to the active surface of the sorbent filter layer. The sorbent thus becomes a fertilizer carrier which, after application of the sorbent to the soil, is accessible to plants through ion exchange capacity.

Explanation of drawings

The technical solution will be further elucidated by means of the drawing, in which Fig. 1 in plan view and Fig. 2 in vertical section represent a preferred embodiment of a device for collecting dog excrement in the form of a dog urinal and Fig. 3 in plan view and Fig. 4 in vertical section. in the form of a dog toilet.

Examples of technical solution

The device in the form of a dog urinal according to Figs. 1 and 2 consists of a cylindrical container 1 having a perforated bottom 2 and a removable perforated lid 3. The container 1 is intended to be built into the ground so that the lid 3 remains at ground level. In the center of the container 1, a hollow cylindrical column 4 closed at the top is provided, provided in the wall with through-openings 5 through which urine flows inwards. Between the bottom 2 and the lid 3, the container 1 is fitted with a horizontal removable screen 6 placed on supports 7. The supports 7 protrude above the screen 6 and allow its easy removal. A layer of granular sorbent 8 is deposited on the screen 6. The sorbent 8 is a carbonaceous material produced by pyrolysis of biomass, also referred to as biochar, biochar or charcoal. The smallest fraction of sorbent 8 is larger than the meshes in the sieve 6. The height of the sorbent layer 8 is preferably 20 cm. The column 4 passes freely through the sieve 6, the sorbent layer 8 and the lid 3.

Dogs are attracted to the urinal by the present concentrated odor and intuitively change the odor trail as their own, ie by urinating on the post 4 of the urinal. After the sorption capacity of the sorbent 8 has been exhausted, which may be after six months of operation, it will be replaced. First, the post 4 and the lid 3 of the urinal are removed, then the inner sieve 6 with the prepared sorbent 8 is removed by means of the supports 7, which is then replaced by a new material. Finally, the structure is reassembled.

The device in the form of a dog toilet according to Figs. 3 and 4 is also formed by a cylindrical container 1, here with a diameter of, for example, 1.5 m and a height of, for example, 0.4 m, into the terrain so that the lid 3 remains at ground level. In the center of the container 1, a hollow cylindrical column 4 closed at the top is provided, provided in the wall with through-openings 5 through which urine flows inwards. Between the bottom 2 and the lid 3, the container 1 is fitted with a horizontal removable screen 6 placed on supports 7. The supports 7 protrude above the screen 6 and allow its easy removal. A layer of sorbent 8 is deposited on the screen 6. In contrast to the previous embodiment, a layer 9 of permeable material, in particular carpets, for example of the artificial grass type, is placed on the lid 3. This forms a surface area intended for defecation of dogs. Dogs are attracted to the toilet with the concentrated odor of excretion present. After defecation, the owner of the dog collects the feces using a attached shovel or disposable gloves and places it in a collection basket. The collection of sorbent 6 and its replacement takes place similarly to the dog urinal.

Claims (5)

CLAIMS FOR PROTECTION Device for collecting dog excrement, consisting of a hollow, top-closed column in the shape of a cylinder, polyhedron or cone provided with through holes on the casing, characterized in that the column (4) is centrally arranged in a cylindrical container (1) with a perforated bottom (2). ) and the lid (3) through which the column (4) passes, between the bottom (2) and the lid (3) the container (1) is fitted with a horizontal removable sieve (6) on which a layer of sorbent (8) is placed. Device according to claim 1, characterized in that the sorbent (8) is a carbonaceous material obtained by pyrolysis of biomass Device according to Claim 1 or 2, characterized in that a permeable visible layer (9) is laid on the lid (3). Device according to claims 1 to 3, characterized in that the screen (6) is mounted on supports (7) which protrude above the sorbent layer (8). Device according to claims 1 to 4, characterized in that the cylindrical container (1), the lid (3) and the sieve (6) are made of stainless steel.