DE10240906A1 - Round shaft cover consisting of a metal frame and cast concrete for an access/inspection shaft of a sewage system comprises an acid-resistant sealing ring - Google Patents

Abstract

Round shaft cover (2) for a shaft of a sewage system comprises a metal frame and is cast with concrete. The cover is provided with recesses (3) for a tool used for lifting the cover. The cover is load-bearing and intended for long-term use. The bearing surface is smooth on the under side. An acid-resistant sealing ring (4) is inserted in an inward-curving semicircular groove with a smooth surface located in the bearing surface in the outer edge. The groove is designed so that the sealing ring remains in the groove when the cover is lifted. The sealing ring can be replaced if necessary. Independent claims are also included for the following: (1) Lid ring (1) for the shaft cover; (2) Ventilation pipe for ventilating a shaft; (3) Shaft cover with an integrated ventilation pipe; (4) Extension pipe for inserting in a ventilation pipe; (5) Three-foot stand; (6) Retaining flap system for insertion in an inspection shaft; and (7) Shaft cover with a rotating mechanism.

Description

Disadvantages of the previous sewage system:
Required ventilation openings on inspection shaft covers in green areas or driveways, as well as ventilation openings on the shaft covers on the street, have serious disadvantages due to their floor-level openings: A short cloudburst is often enough to flood the entire sewer system from the consumer to the sewage treatment plant.

backwater not only from water, but also of faeces partly up to the: houses.

Large areas mostly by the consumer no longer possible to use although the flooding only small area, however took place focused.

Health hazard from germs.

With slowly recurring function pour pollutants such as heating oil or something like that previous channel system.

The following, relatively minor changes result in connection with the existing manholes and partly remaining manhole covers one from flooding protected Channel system.

Possibility:
Each shaft remains as before. Any manhole cover that does not expect a concentrated inflow of surface water remains as before. Their floor-level openings are good enough in some places.

Covers are exchanged the street against covers (2) if they are threatened by flooding. To always necessary, the cover ring underneath (1)

To continue to ensure the ventilation of the main line and its access shaft, a connecting pipe (200) is placed in the depth of frost in the upper area of the main shaft ( 300 ) to the nearest inspection shaft (190) It doesn't even matter whether it is higher or lower than the main shaft. Slope is unimportant, it is only used for pressure equalization and ventilation.

The odor intensity does not become a nuisance because there is already a connection to the main line in the form of the two pipes (500 + 501) ( 400 ) If there is no inspection shaft, there is a pipe system ( 5 ) which is installed in a green area without shaft placement, for example, ventilation can be installed in a simple manner.

The pipe height above the ground results from the degree of danger, both the decision whether a pipe of "simple type" or one with "self-closing function" is available. Inspection manhole covers in lower areas threatened by flooding are exchanged for manhole covers of a new type, with ventilation standpipe, preferably with "self-closing function" (6,7,8,9,10) including cover ring ( 1 ) Of course, venting through a pipe connection can also take place in such a secured shaft ( 200 ) respectively.

These ventilation standpipes, which are firmly connected to the manhole cover, have a height of approx. 50 cm. The pipe is vented with its "self-closing function" as follows:
The pipe has a circumferential bulge, ( 8th ) a tube extension, so to speak.

In this there is a conical hollow vessel with the tip pointing downwards ( 9 ), which has a smaller diameter than the bulge and on 3 Tension springs is held in the correct position. This means that between bulge ( 8th ) and vessel ( 9 ) vented. Due to flooding, and thus water inlet from above, the free-floating vessel fills up immediately, which is thereby pressed down against the spring force.

This is done by fitting on the Pipe wall an immediate closure.

The water stays by sinking Level from above, the vessel empties slowly through a small one Hole at the bottom tip.

The resulting weight loss this causes the vessel to be automatically lifted back into its Starting position.

Ventilation is given again.

If you want to maintain the ventilation function in some places, for example, if an area is large and is likely to be under water for a longer period of time, which 50 cm of the ventilation pipes are already exceeded, the following option is available:
The removable cover is removed ( 6 ) from pipe ( 7 ) and insert an extension tube ( 11 ), which is provided with its own sealing ring, again provides the best function.

These pipes ( 11 ) If necessary, there should be 3-4 lengths.

With a higher pipe construction, the support of the tube extension make sense.

A 3-foot support that is adjustable and stable, as well as provided with sandbag pads, is an advantage as a supplement.

If you make optimal use of these options, you can assume a well secured overall system. Thereby there is probably no backwater from the sewerage side more.

One should no longer see the basement protect from the sewer, rather than the sewer system from flood-prone Basement, which threatens to run full.

A full basement can multiple of its capacity, through constant influx from the outside, with appropriate flooding, by Drain the gully or toilet into the sewage system.

This is prevented by retrofitting a restraint system in the inspection shaft at risk of flooding Houses.

The retention flap ( 23 ) can be operated from the outside of the inspection manhole cover if necessary and necessary. All you need to do is turn it clockwise on a bolt ( 20 ), which offers a hexagon as an approach to actuation.

The bolt is in the cover passage from surround a socket, which has a certain clamping function on it exercises. This prevents unwanted turning. An extension survey above Hexagon makes it easier to find if the lid is already off Water covered his.

By turning this bolt ( 20 ) touches the lever underneath which is connected to the bolt ( 22 ) due to its slightly cranked shape, the wire rope ( 18 ) from its suspension ( 19 ).

The heavy spreading lever ( 15 ) falls down due to its weight. The two noses (16 + 17) give him the direction to the opposite shaft wall.

The flap falls down and the spreading lever ( 15 ) presses the flap shut with its own weight. The toothing of the lever at the upper end now contributes to securing the lock in contact with the opposite shaft wall.

The locking function can be removed by opening the manhole cover and pulling the lever ( 15 ) with the same wire rope ( 18 ) picks up again and hangs up.

To do this, the end of the rope must be fairly high be attached.

The simplicity of the system leaves one sufficient repetition of the closure with minimal maintenance hope.

The two marking points (21) on the cover ring and manhole cover ensure optimal function if both perpendicular over the inlet pipe.

For this purpose, a shaft cover such as ( 4.1 ) with tube and self-closing function, as well as replacement of the lid rig ( 1 ) This locking mechanism is also feasible in manhole covers ( 2 ) floor-level design.

For this, the hexagon in the surface of the Manhole cover can be sunk, then the retaining flap system also use in the inspection shaft of a courtyard entrance.

Everything usable with existing "PRIOR ART"

1

bezel

2

Manhole cover, sealed (applies to everyone follows

the Manhole covers as - basic model -)

3

recesses to remove the cover using

one auxiliary tool

4

Sealing ring, possibly more acid-proof rubber

5

Vent standpipe simple, without self-closing

function

6

Entlüftungsstandrohr- Lid, removable

7

Vent standpipe with self-closing function

8th

Housing, round, for self-closing function

9

Vessel, round, suspended on

10

mainspring

11

renewal of the ventilation standpipe

12

seal for extension

13

3-foot stand, adjustable, with hold function and

Pad possibility for sandbags

14

Pipe clamp, with quick release ( Hold function)

15

spreading levers, for retaining flap

16

Nose, with hole, directional

17

Nose, on the shaft wall, pointing the way

18

Wire rope

19

wire rope suspension

20

Rotation mechanism, to lock the retaining flap

21

mark

22

Lever, to trigger of the mechanism, slightly cranked

23

Retaining flap

24

shaft bottom with gutter (state of the art)

Claims (10)

SHAFT COVER, (basic model) round, for a shaft of the sewage system, for example, an access shaft to the main line in the street or an inspection shaft in a courtyard entrance. Possibly made of a metal frame and poured with concrete, provided with depressions that are not continuous to the bottom. They are used to lift the cover out using a tool. The manhole cover is resilient and intended for long-term use, characterized in that - the support surface on the underside is smooth - that there is an inwardly curved, somewhat more than half-round groove with a smooth surface in the support surface - that there is a suitable, around the running sealing ring, acid-proof type, takes place - Which is still pressed so far by the weight of the cover that it can perform its sealing function - that the groove is designed so that the sealing ring remains in it when the cover is lifted out - that the sealing ring can, however, be replaced if necessary. COVER RING, round, serves to support the shaft cover in Claim 1, it is made of concrete and intended for continuous use characterized, - that the external dimensions are so that itself the cover ring to the underlying shaft components such as shaft ring, Can combine the cone or compensating ring (prior art) - that the contact surfaces the shaft cover lies on, is smooth. BREATHER TUBE, (simple type) is used for ventilation, if this e.g. from one shaft of the main line to the side e.g. relocated to a green area was characterized as a continuous operation, - that there is one has removable lid - That connection with a pipe system can be produced for the shaft in question - that this is provided with sealing rings on the plug connections - that the upper End of the standpipe is such that after Removing the cover a pipe extension with its own sealing ring can be plugged on (if necessary). BREATHER TUBE, (Self-closing Function) as in claim 3.1, but characterized in that - that the pipe a self-closing Has a function which is characterized by - that a round, circumferential bulge expanded the pipe - that there is a round, conical Hollow vessel with down directed tip, somewhat smaller diameter, finds space - that with normal Function the force of the 3 tension springs keeps the vessel so high - That between bulge and Vessel the vent works - That the vessel on the Tip of the cone has a small hole - That the vessel at the water inlet from above, by filling lowers against the spring force - That the lower cone wall on the lower pipe continuation, Possibly, seals with a rubber coating - that the pressure coming from above Water, the closure guarantees - that if you let up of the inflowing Water the vessel the hole is slowly emptied - that through weight loss, due to the emptying, the spring force reflected the vessel lifts - that with it the vent is restored SHAFT COVER WITH BUILT-IN VENTILATION PIPE (simple type) manhole cover as described in claim 1 thereby in - that in the middle of which is a vertical tube which is used for covering has a firm connection - that it is over the The upper edge of the manhole cover has a length of approximately 50 cm - that there is one has removable lid - That the upper end of the vent standpipe is such that after Removing the cover, a pipe connection with a sealing ring can be attached can SHAFT COVER WITH BUILT-IN VENTILATION PIPE (SELF-LOCKING FUNCTION) Manhole cover as described in Claim 4.1 characterized in - That the ventilation standpipe has a self-closing function is characterized by - that the characteristics of this function are identical to claim 3.2 in its description from "characterized is " EXTENSION TUBE to attach to a ventilation standpipe, with longer persistent flooding only for characterized the need, - That it is by means of a transition sleeve is plugged on - that in this is a groove with a sealing ring inserted therein - that this Pipe system manufactured in different lengths to cover every need. 3-foot STAND, the for support an extension structure serves only for characterized the need, - that its stability is so designed is to even with flooding and pouring Water in the landscape to have a safe footing - that its Fixing clamp summarizes all 3 legs and the extension tube the vent with a quick lock surrounds - that its Legs on which you can rest to improve stability, sandbags hangs up RETENTION FLAP SYSTEM, for retrofitting in inspection shafts (state of the art), houses at risk of flooding. When triggered manually, it prevents a full basement from draining through a gully, toilet or similar into the inspection shaft and thus into the sewage system emptied. Characterized only if necessary - that the flap is fastened to its fastening part with screws and dowels above the shaft inlet on the shaft wall - that it is movably connected to the fastening part by an axis - that it may be a better seal on its sealing side has a softer support - that it offers a fastening option in the lower area on the back (flap is installed in a hanging position) to which the spreading lever sits by means of a movable axis, it is characterized in that - it is of a stable, heavy design, since its own weight is the Function is useful - that it is of a length which depends on the shaft diameter. In the closed state of the flap, it should extend from the back of the flap to the opposite shaft wall in a slightly inclined position - that it has a toothing at the top, which is held on the opposite wall when it is closed - that it has a nose, which in the vertical state of of the own wall - that the nose has a hole for rope attachment - that a counter-nose is attached to the inlet side of the shaft wall  MANHOLE COVER WITH TURNING MECHANISM is used for unlocking, and thus triggering of the flap system underneath, this starts one the inside of the shaft wall fastened suspension, which thereby is marked - that you can vertically over attaches the flap system - that they have a suspension of the the spreading lever underneath allowed by means of a wire rope - that an unlock by wiping the rope clockwise, seen from above, can be done by means of a lever - That the suspension point near the top of the shaft The rotating mechanism can be attach to each cover system the SHAFT COVER is then through in - that a metal bolt leads vertically through the cover - that this is surrounded by a continuous socket, which is a light Clamps on him - that the bolt ends at the top of the cover as a hexagon - that the bolt at the bottom, a certain distance from the cover, one of Seen above, lever slightly cranked to the left and down Has - that this in its length and condition, by approx. 1 turn of the bolt clockwise, capable is the rope from the suspension to graze. In the basic model of the manhole cover without ventilation standpipe, is the hexagon in the surface plane sunk attached. A mark on the top of such Manhole covers can show the position of the suspension underneath. Perpendicular to each other, good function: