DE1906785A1 - Watertight and elastic system for guiding pipes through concrete walls - Google Patents

Description

Waterproof and elastic system for Execution of pipes through concrete walls

The present invention relates to a waterproof and resilient system for the implementation of pipes through concrete walls of Containers, basins, shafts and other such structures.

The watertight implementation of pipes through concrete walls by means of a watertight metal part with a stuffing box is known, the watertightness is achieved by several loops of hemp cord, tarred or unsurfaced, in the space between the Pressed tube and the metal part, is achieved.

The use of the watertight metal passage piece with a stuffing box has a number of disadvantages, such as:

- large metal consumption,

- high price,

- Complicated manufacturing process, as machining on machine tools (lathes, drilling machines) is necessary.,

- poor assembly accuracy, as the formwork is during

the concrete fill warps,

909848/0 515

- the tightness between concrete and metal passage piece

is not always achieved directly by pouring the concrete, so that subsequent repairs are necessary,

- the quality of the pipes, the longitudinal and the helical ribs in the weld seams of the pipelines do not allow any uniform pressing of the cord seals on the circumference, so that the occurrence of leaks is favored;

- The operation of these passage pieces is very difficult because of the strong rusting of the threads in the numerous bolts and nuts securing the stuffing box j

- this type of passage piece cannot be used in this case if the pipe ends are to be locked by weir slides.

The waterproof and elastic system according to the invention for the implementation of the pipes through concrete walls eliminates these specialist parts that the tight and elastic passage of the pipe through the cylindrical, finely smoothed opening in the concrete wall is achieved by means of one or more rubber rings ₅ pressed by rollers, between the Wall of the cylindrical opening and the pipe outer wall are attached.

An embodiment of the invention is now based on the drawing tion described, where

Pig. 1 shows a longitudinal section through the exemplary embodiment at the beginning of assembly and

Pig. 2 show a longitudinal section through the finished embodiment.

909SA8 / 0515

The inventive waterproof and elastic system for Execution of the pipes through concrete walls consists of a finely smoothed cylindrical bore 1 through the concrete wall 2, through which the pipe 3 passes, on which a steel ring of square cross-section 4 is welded, the seal by means of of the rubber ring 5 takes place.

So that the rubber ring 5 is inserted into the opening 1 of the concrete wall can be, the bore is with a frustoconical Provided route.

The ring of square cross-section 4 has the task of a To prevent the rubber ring from being driven out in the event of overpressure. In order to achieve compression, the rubber ring 5

m tube 3 attached next to the ring of square cross-section, the entire assembly is inserted into the finely smoothed opening 1 so that the rubber ring 5 penetrates the frustoconical section, after which the tube 3 is inserted into the cylindrical opening 1 by means of a hand crane, so that the rubber ring 5 is forced to roll into the intended end position, in such a way that in this position the rubber ring is pressed in and assumes an approximately elliptical cross-section, whereby the seal between the finely smoothed opening 1 and the tube 3 is achieved.

The invention is analogous to the use of two or more rubber rings.

9. Q π ο / ο / Q _{5 1 5}

- 4 -. The invention has the following advantages:

- The metal consumption is reduced by about 95% compared to the solution currently in use;

- The price is reduced by approx. 90%;

- It is simple, easy to carry out and ensures the tightness and elasticity of the implementation of the pipe a concrete wall.

- It ensures an increase in operational safety.

- It can also be used in the event that the end of the pipe has to be closed by a weir valve »

° 0Π ° / 3/0515 '

Claims (1)

Claim. Watertight and elastic ducting of pipes through Concrete walls in containers, basins or the like., Characterized in, that a cylindrical, finely smoothed opening (1) in the concrete wall (2) is attached to the Eear a rubber ring (5) or several rubber rings under pretension are applied and then the tightness by inserting the tube into the cylindrical opening (1) is achieved, the rubber ring (5) rolling between the wall of the pipe (3) and the hole in the concrete, first in the frustoconical part (6), then in the cylindrical part Part (1), the rubber ring or rings (5) being strongly pressed and deformed in cross-section. 9 0 9 3 4 S / 0 5 1 5