DE1228515B - Non-return valve for ventilation lines of protective structures - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN 4MTITWt PATENTAMT Int. α .:

A62b

EDITORIAL

German class: 61 a-29/07

Number: 1228 515

File number: P 35586 V / 61 a

Filing date: November 28, 1964

Opening day: November 10, 1966

The invention relates to a check valve for ventilation lines of protective structures with a dome-like, swiveling closure body suspended from the valve seat.

The dome-like design of the closure body has the purpose of giving the closure body a larger one to give mechanical strength. Experiments have now shown that such closure bodies in the case of blasts of air, as they occur in atomic bomb explosions, break down.

The invention is based on the task of increasing the load-bearing capacity of the closure body so far increase that it can withstand much higher loads and thus also with blasts of air from atomic bomb explosions remains operational.

This is achieved according to the invention in that the closure body is attached to its valve seat facing side has at least one reinforcing rib extending into the plane of the sealing surface and that a reinforcing rib likewise extending into the plane of the sealing surface is arranged in the valve seat is, which rests against the reinforcing rib of the closure body when the valve is closed. Through this If the closure body is light, such a stiffening is achieved that even with blasts of air, from atomic bomb explosions, deformations of the closure body and thus Leaks and, of course, destruction can be prevented.

A plurality of reinforcing ribs are preferably arranged parallel to one another. These can be extend perpendicular to the pivot axis. On the closure body and also in the valve seat, additional Reinforcing ribs are arranged, which end in front of the sealing surface and preferably honeycomb are arranged.

An exemplary embodiment is illustrated in the drawing. It shows

F i g. 1 the top view of the check valve,

F i g. 2 shows a section in plane II-II in FIG. 1 and

F i g. 3 shows a section in the plane III-III in FIG. 1.

The check valve has in the usual way an annular valve seat 2, which consists of one piece with a fastening flange 4 and two bearing eyes 6. The closure body 8 is provided with a bearing eye 10 which engages between the two bearing eyes 6 on the valve seat and is connected to them by a hinge pin 12. The pivot axis is above and horizontally. The sealing surface 14 of the valve seat is arranged somewhat obliquely in a known manner, so that the closure body 8 is a check valve for vent lines
of protective structures

Applicant:

Anton Piller K. G., Osterode (Harz)

rests on the seat under the influence of its own weight.

In the valve seat 2 two reinforcing ribs 16 are arranged parallel to each other, which in the plane of the Sealing surface 14 end and are preferably machined simultaneously with the valve seat. As shown in FIG. 1, the two reinforcing ribs end at the upper end in the area of Bearing eyes 6, whereby an additional stiffening is achieved.

Corresponding reinforcing ribs 18 are on the side of the closure body facing the valve seat 2 8 arranged in such a way that they coincide with the reinforcing ribs 16 in the valve seat. The reinforcement ribs 18 are guided into the plane of the sealing surface 14 and expediently in one Clamping machined with the sealing surface itself. When the valve is closed, the reinforcement ribs are located 18 to the reinforcing ribs 16, so that the forces acting on the closure body are transferred directly to the valve seat housing and thus to the protective wall.

To further stiffen the closure body, reinforcement ribs 20 are also in a horizontal position Direction and reinforcing ribs 22 arranged in the vertical direction, which end in front of the sealing surface and only have the task to stiffen the closure body in itself and a deformation that leads to Leaks would lead to prevent. In the valve seat 2 there are also additional reinforcing ribs 24 arranged, which also end in front of the sealing surface and cause a transverse stiffening of the reinforcing ribs 16.

Claims (6)

Patent claims: 1.Check valve for ventilation lines of protective structures with a dome-like arched, closure body pivotably suspended on the valve seat, characterized in that that the closure body (8) on its side facing the valve seat (2) has at least one guided into the plane of the sealing surface (14) 609 710/24 Has reinforcing rib (18) and that in the valve seat (2) also up into the plane of the Sealing surface (14) guided reinforcing rib (16) is arranged, which the reinforcing rib of the Closure body when the valve 5 is closed. 2. Check valve according to claim 1, characterized in that a plurality of reinforcing ribs are arranged parallel to each other. 3. Check valve according to claim 2, characterized in that the reinforcing ribs are extend perpendicular to the pivot axis. 4. Check valve according to one of claims 1 to 3, characterized in that on the closure body (8) additional reinforcing ribs (20 and 22) are arranged in front of end of the sealing surface. 5. Check valve according to one of claims 1 to 4, characterized in that im Valve seat (2) arranged between the reinforcement ribs (16) additional reinforcement ribs (24) that end in front of the sealing surface. 6. Check valve according to claim 4 or 5, characterized in that the additional Reinforcing ribs (20 and 22 or 24) are arranged in a honeycomb shape. Considered publications:
Swiss Patent No. 375 998;
French patent specification No. 864 948. 1 sheet of drawings 609 710/24 11.66 © Bundesdruckerei Berlin