DE1908906C - Contemplation or observation device - Google Patents

Description

45

The subject of patent 1 556 960 is a remotely controllable motor-driven cleaning or observation device, that can be pressed against a surface lying under a liquid, in particular a surface under water and is maneuverable along this in all directions and one by means of a control device has steerable, pivotable by at least 90 ° wheel and further wheels. This device draws i through a chamber with an outlet and one open to the surface to be driven on Side and through a pumping device to maintain a negative pressure in the chamber with respect to the external pressure, the treads of the wheels opening up the edges of the chamber at theirs Protrude from the underside.

The device according to the main patent is known (French patent specification 1 470 634). It can, among other things as an underwater observation station or for Find repair, maintenance and / or cleaning work under water use. It will do this alongside the surface to be cleaned is lowered into the water and then a negative pressure is created in the chamber testifies, so that the device is automatically pressed against the underwater surface. In this situation the device can be moved over the surface while maintaining a negative pressure in the chamber.

It is the object of the invention to improve the device according to the main patent to the effect that the Negative pressure in the chamber can be maintained with less energy expenditure.

This task is done by the cleaning ock. Observation device according to patent 1556 960 valid; by a number of waves on the edge bordering the ο Γ open side of the chamber, weeping against the surface to be driven on ·. 1 Front face of the chamber, the wave trains of which run essentially parallel to the edge.

These waves generate 0.-Kammei in the area of the edge a turbulent flow, so that the amount of W = - sers is reduced. Thus the waves, ti., Cause the negative pressure in the chamber compared to dt External pressure with a, lower energy expenditure. can be maintained.

The waves are preferably shaped continuously μ and can have a surface of the same Gesh. include, like the Oi surrounded by the edge; tion. In a preferred embodiment, the open side of the chamber is circular, and the wave trains on this edge are also circular.

However, the waves can also not be formed continuously and opposite the limit opening line in a small sharp win angle, for example, a series of waves can be provided with a circular opening which form tangels along the inner perimeter of the opening that do not intersect.

The profile of the waves can vary considerably. However, it is preferably sinusoidal, although other symmetrical or asymmetrical profile shapes are also possible, such as circular, square or V-shaped.

The shafts are preferably arranged next to one another on the end face from the outside to the inside, whereby at least two and preferably 6 or more shafts are provided.

A device with the features of the invention is explained below with reference to the figures; it shows F i g. 1 a view of the device from below,

F i g. 2 shows a side view of the device along the line HI-III of FIG. 1,

F i g. Figure 3 is an enlarged side view of the edge of the chamber.

The chamber 1 has an open side 12 and is provided with a propeller shaft 2. On the located on the outer boundary edge of the chamber, pointing towards the area to be driven on The end face of the chamber runs around a number of waves 26 in wave trains, which the influx of Limit water in the chamber. The wave trains run parallel to the edge of the chamber 1. The Chamber 1 contains a drive motor 16 which drives the propeller 5 and the hydraulic pump 9. This hydraulic pump drives the motors for the wheels and brushes. To facilitate handling a support rod 29 is provided which is attached to the outside of the chamber with support posts

is, of which two posts 27 and 28 •, ind The cleaning brushes 25 a, 25 b, 25c are by hydraulic motors 8a, 8fc driven 8c. Further, a steerable, driven by the hydraulic motor wheel and further provided by the Hydraiilikmotoren Via and 30 b driven wheels Λα and 3b. The rotating propeller5 / constantly draws water from inside the chamber 1 and throws the water through the propeller shaft! from, wJby the internal pressure in which, me 1 compared to the hydrostatic outside,] S is reduced. As a result, the device is pressed against the surface lying under water.

In the sectional view of FIG. 3, one recognizes the formation of the end face at the edge of the Ka, A "d" underside, in the six waves, 26 front profile is approximately sinusoidal. The WcU-. is conveniently about 2.5 cm.

1 sheet of drawings

Claims (5)

Patent claims: 1. Remotely controllable, motor-driven cleaning or observation device that can be used against an under a liquid, in particular a surface lying under water, and can be pressed along it is maneuverable in all directions and a steerable by means of a control device to has at least 90 ° schwenkbrres wheel and further wheels, and in which a chamber with an outlet and a side open to the surface to be driven on and a pumping device to maintain a negative pressure in the chamber compared to the external pressure is provided, with the treads of the wheels the edges of the chamber at their more open Projecting over the underside, according to patent 1 556 960, characterized by a number of Waves (26) on the edge delimiting the open side (12) of the chamber (1), against the face of the chamber (1) facing the surface to be driven on, the undulations of which essentially run parallel to the Kanti. 2. cleaning or observation device according to claim 1, characterized in that the Waves (26) are wading waves. 3. Cleaning or monitoring equipment Claim 1 or 2, characterized in that the profile of the waves (26) is essentially sinusoidal is. 4. Cleaning or observation device one of claims 1 to 3, characterized in that on the end face of the chamber (1) at least six shafts (26) lying next to one another from the outside to the inside are provided. 5 cleaning or observation device according to one of claims 1 to 4, characterized in that that the open side (12) of the chamber (1) is circular and that the wave trains on their Run the edge in a circle.