DE9213955U1 - Device for protection against insects - Google Patents

Description

Device for protection against insects

The invention relates to a device for protection against insects, in particular against wasps and mosquitoes according to the preamble of claim 1.

Known devices for protection against mosquitoes or other flying insects essentially consist of two groups, where one group aims to keep the insects away from people's immediate surroundings and the other group is aimed at destroying them. The first group includes, for example, devices such as fly screens, mosquito nets and various fragrances for rubbing in. The second group includes, for example, fly adhesive tape and various chemical poisons, which are preferably sprayed.

In addition to the nuisance caused by mosquitoes, wasps have become increasingly a nuisance in recent years. Especially when eating or drinking outdoors

Deutsche Bank Herne (bank code 430 700 61) Account number: 6145:510 ■ Deutsche Bank München (bank code 700 202 70) Account number: 46 505 999

Postal cheque "Müiiclfeji (BL? 700 IQO 801 Cojitp number: 227 682 - 805

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wasps will soon be there, and they also see this as a convenient source of food. Often people try to distract the wasps using containers filled with sugar water or something similar and then catch them there. However, this method is usually not particularly effective. This means that people are often stung by wasps when they try to keep them away from food and drink. Wasp stings are extremely painful and can be fatal, especially if the wasp is swallowed or if someone is allergic.

In this context, it would be desirable to be able to provide a device that would enable simple and safe removal from the immediate vicinity.

The object of the present invention is therefore to provide a device by means of which insects, in particular wasps, can be removed quickly, safely and without problems.

This object is achieved by the features contained in the characterizing part of claim 1, whereby expedient further developments of the invention are characterized by the features specified in the subclaims.

According to the invention, the device comprises an electrically operated suction device, means for killing and collecting means. The way the device works is that the insects are sucked into a closed container by means of a directed air stream, where they are killed quickly and reliably and finally collected in a collecting container.

The suction device advantageously consists of an elongated, preferably conical nozzle, the opening diameter of which allows the entry of various insects, in particular wasps. The necessary air flow is preferably caused by a suitable propeller,

which is driven by an electric motor. In order to prevent the sucked-in insects from entering the area of the drive unit, retaining devices are provided in front of the propeller against the direction of the air flow, which prevent the sucked-in insects from entering the area of the drive unit.

The device is designed in its external form similar to a pistol; it can be switched on and off using a switch which is arranged on a handle. The switch can preferably be a button.

In an advantageous embodiment, the air flow is divided into a main flow and a secondary flow by appropriately designed air guiding means. The secondary flow serves in particular to open a check valve, which can be part of the retaining means. The check valve is in particular designed in such a way that it closes automatically as soon as there is no longer any air flow.

If the device is designed as described with a main and secondary flow, it works as follows: The insects sucked in are first accelerated in the suction nozzle and hit the retaining devices arranged in front of the propeller. From there, the insects are sucked downwards through the check valve by the secondary flow and end up in a collecting container. As soon as there is no more flow, the check valve closes and the insects are trapped in the collecting container.

In order to ensure that the insects die quickly, it is necessary to provide appropriate means. These can, for example, be based on an electrical or chemical mechanism of action.

In an advantageous embodiment, a transformer for generating a high voltage, for example in the range of 20,000 V, and two electrodes can be provided. These electrodes can in particular be components of the retaining means and can advantageously be designed in the form of a grid. This makes it possible for the insects to be killed by an electric shock as soon as they hit the retaining means.

On the other hand, the insects are usually so dazed by the impact on the restraint devices that they end up in the collecting container under the influence of the side stream. Chemical poisons can be provided here that cause the insects to die quickly.

The collection containers can advantageously be designed in the form of replaceable, poison-filled disposable magazines. Cardboard or similar easily degradable material, which does not cause any environmental pollution, is particularly suitable as a material for such magazines.

An embodiment of the invention is described below with reference to the drawings.

Fig. 1 is a schematic side view of the device according to the invention;

Fig. 2 is a plan view of a check valve as provided in the device according to the invention, and

Fig. 3 is a schematic side view of restraint means.

Fig. 1 shows schematically the structure of the device according to the invention, here generally designated 1. The suction nozzle 2 is clearly visible, which for better handling

the device can be beveled at its inlet opening 3. Furthermore, the electric motor 4 and the propeller 5 operated by this motor can be seen at the rear end of the nozzle 2. The main air flow HL generated is, as shown here, split into a main air flow HL and a secondary air flow NL by means of suitable air guiding means 6. The secondary air flow NL serves primarily to open the check valve 7. In order to prevent the insects from being sucked into the drive unit by the main air flow HL, retaining means 8, which are designed in particular in the form of a grid, are provided in the main air flow HL. Immediately adjacent to the check valve 7 is a suitable collecting container, which can be filled with insect poison 10 on the floor and/or on the walls. The device is put into operation by means of the switch 11, which can in particular be designed as a button. The device shown here additionally comprises a replaceable battery 12 so that the device can be operated independently of the mains.

Fig. 2 shows a top view of a check valve 7. As can be seen from this embodiment, the check valve 7 consists of radially inward-facing, circular segment-shaped rubber tabs 13, which can slightly overlap each other. These rubber tabs are particularly dimensioned in such a way that, due to their elasticity, they are bent in the direction of flow when a certain air flow is present, and open up an opening. As soon as this flow is no longer present, the elastic rubber tabs 13 return to their initial state and close the opening again.

Fig. 3 shows an advantageous embodiment of the retaining means 8. These consist of a grid formed by horizontally extending struts 14, which are made in particular of insulating material, such as plastic, and vertical struts 15 running transversely thereto. The vertical struts 15 are made in particular of electrically

conductive material, such as &zgr;. &Bgr;. metal, whereby two adjacent struts 15 are polarized differently so that an electrical voltage field is created between the struts.

Overall, the device according to the invention can also be designed to be particularly quiet or soundproof, so that its use is hardly disturbing.

Claims (13)

Expectations 1. Device for protection against insects, in particular against wasps and mosquitoes, characterized in that the device (1) comprises an electrically operated suction device (2, 3, 4, 5), means for killing insects (10, 15) and collecting means (9). 2. Device according to claim 1, characterized in that the suction device comprises a suction nozzle (2), which is preferably elongated and conical, an electric motor (4) with a propeller (5) for generating a suction air flow (HL) directed inwards through the nozzle, retaining means (8) and a switch (11), preferably a button. 3. Device according to one of claims 1 and 2, characterized in that the suction device additionally comprises air guiding means (6) for dividing the suction flow into a main flow (HL) and a secondary flow (NL). 4. Device according to one of the preceding claims, characterized in that the retaining means (8) are designed like a grid. 5. Device according to claim 4, characterized in that the retaining means (8) comprise a check valve (7) which is preferably formed from a plurality of radially inwardly extending, circular segment-like rubber tabs (13). 6. Device according to one of the preceding claims, characterized in that the check valve (7) in the side stream (NL) is arranged such that it is open when the side stream (NL) is present. -B- 7. Device according to one of the preceding claims, characterized in that additionally replaceable, rechargeable means (12) for storing electrical energy are provided, which are preferably arranged in the area of a handle of the device (1). 8. Device according to one of the preceding claims, characterized in that the means for killing comprise a transformer for generating high voltage and at least two electrodes (15). 9. Device according to one of the preceding claims, characterized in that the electrodes (15) are designed in the form of grid-like retaining means. 10. Device according to one of the preceding claims, characterized in that the means for killing are formed from toxic substances (10). 11. Device according to one of the preceding claims, characterized in that the collecting device (9) is arranged in the secondary flow (NL), preferably immediately behind the check valve (7). 12. Device according to one of the preceding claims, characterized in that the collecting device (9) consists of exchangeable disposable magazines. 13. Device according to one of the preceding claims, characterized in that the collecting means (9) comprise toxic substances (10).