CZ10001U1 - Concrete slot drain pipes - Google Patents

Description

Concrete slotted drainage pipes

Technical field

Products according to this solution - slotted drainage pipes are used where it is necessary to drain concrete hardened surfaces with a small to zero gradient. The entire drainage system (which is not subject to protection) can then be built up to a distance of 98 m.

BACKGROUND OF THE INVENTION

Currently, slotted concrete pipes with an internal gradient are used, i.e. the pipe has a different conically tapered gap diameter at the inlet and outlet. The pipes are then connected to the drainage system where there is no gradient. Pipes without conical tapering, which are also still in use, have a drain internal diameter at the center of the tube and without a gradient. Therefore, they can be used for drainage only where a terrain gradient of at least 0.5% is ensured. The use of the types of drainage pipes produced so far makes it possible to install drainage connections up to a distance of 42 m only when draining concrete surfaces and sewerage systems.

The essence of the technical solution

The technical solution according to this design is based on the production of non-sloping drain slits with the same slot diameter at the inlet and outlet. However, the drain slots (apertures, however, the word does not fully represent the cross-sectional slit along the entire tube), are located in the tube centrally to off-center, ie eccentrically extending to one side. There are five types of drain slots. Each type has a different diameter, ie: 28 cm, 26 cm, 24 cm, 22 cm and 20 cm. The pipes made in this way correspond in diameter to the existing conically tapered pipes, the cross section of which is shown in FIG.

Summary of the drawings

Figure 1 shows the existing concrete pipes where the inlet diameter is always 2 cm larger than at the outlet. Tube I has a diameter of 30 cm at the inlet and 28 cm at the outlet. The tubes 2, 3, 4, 5 always have a diameter at the inlet to follow the outlet of the previous tube. Figure 2 shows the tubes of the described technical solution with a slot in the center of the tube 6 and a progressively deflected slot in the center of the tubes 7, 8, 9, 10, without conical taper.

Examples

Concrete slotted drainage pipes according to the described technical solution are produced in 5 variants. The first variant of the tube 6 has a drain slot in the center and has the same diameter, i.e. 28 cm at the inlet and at the outlet. Other tube variants 7, 8, 9, 10 have diameters 2 cm narrower each, and gradually deviate from the center to the edge of the peripheral shell of the drain tube, as shown in Figure 2.

Industrial use

The described technical solution will be used for drainage of concrete hard surfaces at low to zero runoff. Pipes according to this invention are inserted between slotted tubes with a conically tapered slot so that the diameter of the conical outlet is connected to

The UC tubular inlet according to this solution. This drains the longer route of the concrete drainage area.

Claims (2)

PROTECTION REQUIREMENTS 1. Concrete slotted drainage pipes with bottom slits, characterized in that they are made with the same diameter of the slots at the inlet and outlet, this diameter tapers from 28 cm for the pipe (6) by two centimeters for the pipes (7), ( 8), (9), (10) and the drain slot is displaced from the center of the tube (6) eccentrically at the tubes (7), (8), (9), (10) to the wall of the drain tube. 2 drawings