DE3914791A1 - Watertight shaft closure - is for underground containers and has flexible petrol- and acid-resistant seals - Google Patents

Watertight shaft closure - is for underground containers and has flexible petrol- and acid-resistant seals

Info

Publication number
DE3914791A1
DE3914791A1 DE19893914791 DE3914791A DE3914791A1 DE 3914791 A1 DE3914791 A1 DE 3914791A1 DE 19893914791 DE19893914791 DE 19893914791 DE 3914791 A DE3914791 A DE 3914791A DE 3914791 A1 DE3914791 A1 DE 3914791A1
Authority
DE
Germany
Prior art keywords
cover
lid
main
characterized
closure according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19893914791
Other languages
German (de)
Inventor
Udo Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KLEINKEN FRANZ METALLWERK
Original Assignee
KLEINKEN FRANZ METALLWERK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KLEINKEN FRANZ METALLWERK filed Critical KLEINKEN FRANZ METALLWERK
Priority to DE19893914791 priority Critical patent/DE3914791A1/en
Priority claimed from DE8915773U external-priority patent/DE8915773U1/de
Priority claimed from DE19904033601 external-priority patent/DE4033601A1/en
Publication of DE3914791A1 publication Critical patent/DE3914791A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/10Manholes; Inspection openings; Covers therefor
    • B65D90/105Manholes; Inspection openings; Covers therefor for underground containers

Abstract

The water-tight shaft closure for underground storage tanks has a lid frame fitted with a two part lid whose inner circular lid is supported by its bearing flanges on the square or rectangular main lid. Between the bearing flange and support edge of the main lid and lid frame as well as between the bearing flange and support edge of the inner lid and main lid there are flexible acid and petrol resistant seals. The main lid and lid frame and the main lid and inner lid can be tensioned against each other separately in the vertical direction. The support edge of the lid frame and the support edge of the main lid have a circular sealing groove. USE/ADVANTAGE - A more secure closure is obtained for watertight shaft of underground water tank.

Description

The invention relates to a shaft closure for under earthly storage containers, their filling and control equipment in a shaft covered by the lock are brought, with a fixed in the surrounding surface covering placed lid frame and the two-part, in the lid frame fitted lid, the circular inner lid with its bearing flanges on the rectangular or main square is supported, the main and inner cover with on the bottom over their bearing flanges protruding, downwardly curved skids are equipped.

Such protective devices are also called cathedral shafts designated with appropriate cover or closure, wherein these serve the filling and control devices of underground storage containers. At this camp containers are petrol or diesel tanks all below the access to petrol stations. This shaft closures are multi-part, i.e. in cover frame, main cover and inner cover divided because the entire cathedral shaft only relatively rarely needs to be opened while to Ab Read the degree of filling of the underground storage containers and only for connecting the hoses when filling the smaller inner cover must be removed.

Because these manhole closures are not just for tankers Vehicles, but also from the tanker vehicles with their Such a shaft will have to be run over with heavy weight cast iron closures or similar Made of material. On the other hand the shaft locks usually have to be operated by hand be what is achieved primarily through the subdivision, even if the relatively small inner cover is still high Has weight. Like the main cover, it is off holes in the corresponding additional tools can be inserted if the inner cover or the Main cover must be removed. By appropriate form  the transition areas between the main cover and the inside attempts have been made to prevent water from entering the lid To prevent the cathedral shaft (DE-GM 83 08 086). A disadvantage of this very progressive shaft mine The conclusion is, however, that a complete conclusion, i.e. a real seal has not been achieved, but that Water vapor but also water droplets through the only sealing zone reached through iron on iron can penetrate. Not least in the context of getting sharper environmental protection and for security reasons but it is advantageous if the shaft closures are complete would seal.

Accordingly, the invention is based on the object to create a moisture-proof shaft closure.

The object is achieved in that flexible, gasoline and acid-resistant seals ( 35 , 36 ) are arranged between the bearing flange and the supporting edge of the main cover and the cover frame and between the bearing flange and the supporting edge of the inner cover and the main cover and the main cover and the cover are formed separately braced against each other in the vertical direction.

In the context of the invention is therefore not only the seal by laying the individual cast iron lids on top of each other parts reached, but rather the seals between the edge areas between the main cover and the inner cover as well as main cover and cover frame so clamped that a Completely secure closure guaranteed as with a safe is. This is the first time a completely watertight shaft closure for underground gasoline containers, Diesel and the like valuable fabrics created. It is advantageous further that even with uneven loading Cover, for example, by standing vehicles or even  the tanker does not affect the effectiveness of the seals is pregnant because this is between the individual lids parts are clamped so that they are permanent and the same result in permanent sealing.

After an expedient training of the invention provided that the support edge of the lid frame and the support edge of the main cover has an all-round seal have groove. This is an accurate one for the seal Positioning guaranteed and also when opening and Closing ensures that the seal on your the given position remains or is held is so that when replacing the corresponding lid part is ensured that the effect of the seal after the bracing is then 100% again. An on tensioning the seal in the sealing groove is advantageous reached by the sealing groove more than the seal 50% is fully trained. The seal is thus in the sealing groove is clamped in and stays there alone in their given position.

The sealing groove is expediently already during casting process made so that the sealing groove is always the same and so that sealing zone is given, which is a through emerge from water from the surface area, but also effectively excludes water vapor from the cathedral shaft.

Damage to the seal when it is lifted out or out slide the inner cover or the main cover effectively prevented by the fact that the inner cover and the Main cover on the underside of a cast-in guide exhibit. This guidance is based on the edge the other part of the cover and slides over the seal away, so that this not only before slipping, but especially protected from damage. This also results in a kind of safe for the seal,  without the seal itself becoming inaccessible would.

The lid frame and main lid are tightened achieved in an expedient and advantageous manner, by drilling the cover frame in the quadrilaterals with segment shaped ramp and the main cover corresponding Has step holes and that insert into the holes locking screws with an end segment Clamping ring and one at a distance from it and below the six edge arranged all-round clamping ring are equipped. About this locking screw achieved that when turning this locking screw over the hexagon, which incidentally has the usual dimensions points and can thus be operated with conventional keys, is over the bevel of the main lid on the lid frame pressed, i.e. influenced by both clamping rings that the seal is compressed so that it is advantageous seals securely even when the shaft lock is closed would be unevenly burdened by any loads and there would otherwise be fear of opening the closure. It is advantageous that zurückge on usual hexagon is gripped and that with a quarter turn already effective tensioning of the main frame and the cover frame can be effected.

Another one that in principle produces the same seal Training provides that the corres with the lid frame Bonding segment clamping ring equipped with bevels is. It is also conceivable that both the segment clamping ring as well as the segment bores with corresponding bevels are provided in order to keep the tension as short as possible To reach paths or with the largest possible area moderate support.

The main cover and inner cover are separated against it  sealed each other by the main cover and the inside cover at two opposite slots have shaped recesses and that in the main cover Wing screw with hexagon is rotatably arranged, the Wing corresponding to the slot-shaped recesses are shaped. Here is by swinging in the wing or rather both wings in the slit-shaped out recesses in the inner cover and main cover the effective Ver close reached or the compression of the inner cover and main cover so that effective sealing is guaranteed is. The wing screw itself remains in the main cover, so that they get lost through unintentional Removing the main cover is not to be feared. It is also advantageous that the only in two places Sealing between the main cover and inner cover by the Wing screws must be effected, so that's more common occurring removal of the inner cover not too much is burdened. It is only necessary to use the hexagon to pivot the wing screws, so that already the inner cover can be lifted out. Similarly easy is that again clamping both cover parts against each other, which then already achieves the effective seal, because the between the two flanges or support edges arranged seal by swiveling in the wing screw is tensioned.

The inner cover and main cover are tightened achieved in particular in that the wings at least the the wing assigned to the inner cover a beveled lower have side. When swinging the wing into the slot shaped recesses thus the Ver tighten both parts, which complements or additionally can be achieved that the slot-shaped recesses have an inclined support side. Definitely is a bracing with the inventive training reached by inner cover and outer cover in the shortest way,  so that a uniformly stressed seal for it ensures that water cannot pass in this area.

Earlier it was stated that the used upcoming seals flexible, gasoline and acid resistant should be trained. It is expedient a fluororubber that is safe thanks to its shape ensures that it can be clamped in the sealing groove in such a way that he cannot detach himself from it. This is achieved in particular in that the seal a rounded cross section and slightly above the through diameter of the sealing groove. In order to is the clamping of the seal in the sealing groove without further possible, the safe storage of the seal is achieved and also through the special shape of the seal an areal seal ensures that already at minimum edition or when the individual is pressed together Lid parts leads to a complete conclusion.

The invention is particularly characterized in that a seal for cathedral shafts or for shaft manholes conclusions is created, which ensures easy handling achieves, but nevertheless an effective conclusion, i.e. one waterproof closure.

The effective seal is not just about of the inner cover, which has to be taken up frequently, but also between the lid frame and the main lid, so that there is water cannot push through even in the most unfavorable situations. The rubber seal used is petrol and acid resistant and loose in a pre-cast sealing groove so pinched that it accidentally does not come out of this Position can be pushed out. Damage to the Rubber seal when removing the cover is through the cast guides in the lid substructure closed. Another advantage is that both the bracing  between cover frame and main cover and between main Lid and inner lid with normal hexagon key to handle, so that special tools are in no way needed.

Further details and advantages of the invention stand out from the following description of the associated drawing, in which a preferred embodiment play with the necessary details and parts is shown. Show it:

Fig. 1 view a main lid, with the inner cover in plan,

Fig. 2 shows the main cover in section,

Fig. 3 main lid and the inner lid in bottom view,

Fig. 4 shows the lid frame in plan view,

Fig. 5 is a partial section of the cover frame,

Fig. 6 is a plan view of the inner lid,

Fig. 7 is a section through the inner lid,

Fig. 8 is a side view of the inner lid,

Fig. 9 is a partial view in the region of the connection between the main lid and the inner lid,

Fig. 10, the wing screw in plan view,

Fig. 11, the wing screw in a side view,

Fig. 12 is a partial view in the sealing area between the main lid and the lid frame,

Fig. 13 is a locking screw in side view

Fig. 14, the locking screw of FIG. 13 in plan view, partially in section.

The shaft closure ( 1 ) shown in Fig. 1 consists of the main cover ( 2 ) and the inner cover ( 9 ). The main cover ( 2 ), which is supported on the cover frame, not shown here, has two lifting holes ( 3 ) so that it can be lifted if necessary, either together with the inner cover or separately from it after the inner cover has been opened has already been removed.

In the corners ( 4 , 5 ) of the main cover ( 2 ) stepped bores ( 6 , 7 ) are provided, via which a locking screw not shown here causes a tension between the main cover ( 2 ) and the cover frame, not shown here.

The inner cover ( 9 ) is clamped to the main cover ( 2 ) via wing screws ( 10 ) so that a watertight seal is achieved. For this purpose, opposite points ( 11 , 12 ) in both parts, ie both in the main cover ( 2 ) and in the cover ( 9 ) slot-shaped Ausneh measures ( 13 , 14 ) are provided, in which the wing of the wing screw ( 10 ) are pivoted can to effect the effective sealing. The wing screws ( 10 ) are housed in bores ( 15 ) so that they are rotatably arranged in the main cover ( 2 ) in the state shown in FIG. 1, but do not hinder the lifting out of the inner cover ( 9 ).

Fig. 2 shows that the main cover ( 2 ) on the underside has bearing flanges ( 16 ), via which it is supported on the cover frame, not shown here. On the other hand, it has a support edge ( 17 ) on which the inner cover ( 9 ) shown in FIG. 1 can be placed. The seals which are arranged in these areas cannot be seen in FIG. 2. However, these seals are protected by guides ( 18 ) arranged on the underside ( 19 ), which enable the inner cover ( 9 ) to be removed from the main cover ( 2 ) but also the main cover ( 2 ) from the cover frame without the risk that the seals are damaged. Accordingly, the underside ( 20 ) of the inner cover ( 9 ) has corresponding guides, as will be explained further below. The same is shown in FIG. 3.

At the corners ( 4 , 5 ) of the main cover ( 2 ), roundings ( 21 , 22 ) are provided, which should make it easier to lift and pull the main cover and at the same time ensure that damage to the seals does not occur.

In Fig. 4 the lid frame ( 23 ) is shown, which has a similar square shape as the main lid ( 2 ). Bores ( 25 ) are provided in the corners ( 24 ) which correspond to the stepped bores ( 6 , 7 ) both in terms of their position and their design. For this purpose, bevels ( 26 ) are provided.

The main cover ( 2 ) is placed on the support edge ( 27 ) of the cover frame ( 23 ) and, due to its weight, compresses the seal arranged in the sealing groove ( 29 ) so that a first seal is brought about. The full permanent seal is then caused by the bracing of the main cover ( 2 ) and cover frame ( 23 ), details of which will be explained later. Fig. 1 shows, moreover, that a sealing groove (28) is also provided in the region of the supporting edge (17) in the main lid (2) to cause the seal between the main lid (2) and the inner cover (9). The sealing groove ( 29 ) is shown in an enlarged view in FIG. 5, it becoming clear that it represents a little more than a semicircle.

FIGS. 6, 7 and 8 show details of the inner cover (9). In particular, 6 are in Fig., The two slot-shaped recesses (14) at opposite points (11, 12) visible, which are formed out in the bearing flange (30), as also illustrated Fig. 8. On the underside ( 20 ) of the inner cover ( 9 ) guides ( 31 ) are provided for securing the seals not shown here in detail. On the top of the inner cover ( 9 ) are similar to the main cover ( 2 ) see lever holes ( 32 ), so that this cover part can be easily handled.

The slot-shaped recess ( 14 ) in the bearing flange ( 30 ) of the inner cover ( 9 ) shown in FIG. 8 has an inclined support side ( 33 ) and a straight support side ( 34 ). When inserting the corresponding wing of the wing screw ( 10 ), the main cover ( 2 ) and inner cover ( 9 ) are clamped and thus braced. It is understood that the slot-shaped recesses ( 14 ) correspond to the slot-shaped recesses ( 13 ) in the main cover ( 2 ), which will be explained further with reference to FIG. 9. The area is shown here in which one of the two wing screws ( 10 ) is housed. This wing screw is intended to tension and thus compress the seal ( 36 ), so that a complete and secure water seal is provided in this area. For this purpose, the wing screw ( 10 ) is in the bore ( 15 ) and can be brought into the slot-shaped recesses ( 13 , 14 ) by pressing the hexagon ( 37 ) with its wings ( 38 , 39 ). At least the wing ( 38 ) has a bevelled underside ( 40 ). But it is also conceivable that both undersides of the wings ( 38 , 39 ) are of identical design. This causes the main cover ( 2 ) and inner cover ( 9 ) to be braced. If the inner cover ( 9 ) is lifted out of the main cover ( 2 ), the two wing screws ( 10 ) only need to be turned using the hexagon ( 37 ) so that the two wings ( 38 , 39 ) emerge from the slot-shaped recesses ( 13 , 14 ) move out. It can easily be seen that a uniform compression of the seal ( 36 ) is achieved.

FIGS. 10 and 11 show the wing screw (10) in a top view and once in side view, with 11, the beveled lower surface (40) light very nice verdeut particular Fig..

Fig. 12 shows the sealing area between the main cover ( 2 ) and the cover frame ( 23 ). Here the bracing is effected by the locking screw ( 42 ), which, by turning the main cover ( 2 ) accordingly, presses it onto the cover frame ( 23 ) in such a way that the seal ( 35 ) is deformed evenly so as to seal effectively. This seal ( 35 ) also sits in an appropriately designed sealing groove ( 29 ), so that slipping out is prevented and uniform sealing is always guaranteed.

The locking screw ( 42 ) has the segment clamping ring ( 43 ) at the lower end, which is equipped with ramp ( 44 ), and at a distance from it and in the area of the hexagon ( 46 ) via the clamping ring ( 45 ). By turning the locking screw ( 42 ) the ramp ( 44 ) is effective or the ramp ( 26 ) in the area of the bore, so that the two cover parts are effectively pressed against each other and thereby the seal in the area of the device ( 35 ) is.

Figs. 13 and 14 show the locking screw (42) in side view and plan view, it is clear that for the insertion of the locking screw (42) tion in the Boh (25) and the stepped bore (6, 7) a part of the segment Clamping ring ( 43 ) is recessed in each case. This results in the clamping ring ( 43 ) referred to as the segment clamping ring, the clamping ring ( 45 ) also expediently being formed in a similar manner in order to facilitate manufacture and also to facilitate handling.

Claims (11)

1.Shaft closure for underground storage containers, the filling and control devices of which are accommodated in a shaft covered by the closure, with a cover frame fixed in the surrounding surface covering and the two-part cover fitted in the cover frame, the circular inner cover of which is aligned with its bearing flanges on the rectangular or supports square-shaped main cover, the main and inner covers being equipped with sliding skids protruding downward over their bearing flanges on the underside, characterized in that between the bearing flange ( 16 ) and supporting edge ( 27 ) of the main cover ( 2 ) and cover frame ( 23 ) and between the bearing flange ( 30 ) and the support rim ( 17 ) of the inner cover ( 9 ) and the main cover are flexible, gasoline and acid resistant seals ( 35 , 36 ) are arranged and that the main cover and cover frame as well as the main cover and inner cover get in the vertical direction runs are braced against each other.
2. Shaft closure according to claim 1, characterized in that the support edge ( 27 ) of the cover frame ( 23 ) and the support edge ( 17 ) of the main cover ( 2 ) have a circumferential sealing groove ( 28 , 29 ).
3. shaft closure according to claim 2, characterized in that the sealing groove ( 28 , 29 ), the seal ( 35 , 36 ) is more than 50% comprehensive.
4. Manhole closure according to claim 2, characterized in that the sealing groove ( 28 , 29 ) is made during the casting process.
5. Manhole closure according to claim 1, characterized in that the inner cover ( 9 ) and the main cover ( 2 ) on the underside ( 19 , 20 ) have a cast-in guide ( 18 , 31 ).
6. Manhole closure according to claim 1, characterized in that the cover frame ( 23 ) in the quadrilaterals ( 24 ) bores ( 25 ) with segment-shaped run-up slopes ( 26 ) and the main cover ( 2 ) have corresponding stepped bores ( 6 , 17 ) and that in the bores ( 25 , 6 , 7 ) insertable locking screws ( 42 ) are equipped with an end segment clamping ring ( 43 ) and a circumferential clamping ring ( 45 ) arranged at a distance from and below the hexagon ( 46 ).
7. Shaft closure according to claim 6, characterized in that the segment clamping ring ( 43 ) corresponding to the cover frame ( 23 ) is equipped with bevels ( 44 ).
8. Shaft closure according to claim 1, characterized in that the main cover ( 2 ) and the inner cover ( 9 ) at two opposite positions ( 11 , 12 ) have slot-shaped recesses ( 13 , 14 ), and that in the main cover ( 2 ) Wing screw ( 10 ) with hexagon ( 37 ) is rotatably arranged, the wing ( 38 , 39 ) with the slot-shaped recesses ( 13 , 14 ) are shaped accordingly.
9. shaft closure according to claim 8, characterized in that the wings (38, 39), at least of the inner lid (9) associated wings (39) have a chamfered bottom side (40).
10. Shaft closure according to claim 8, characterized in that the slot-shaped recesses ( 13 , 14 ) have an obliquely attached support side ( 33 ).
11. Shaft closure according to claim 1 and claim 3, characterized in that the seal ( 35 , 36 ) has a rounded cross section and a diameter slightly above the diameter of the sealing groove ( 28 , 29 ).
DE19893914791 1989-05-05 1989-05-05 Watertight shaft closure - is for underground containers and has flexible petrol- and acid-resistant seals Withdrawn DE3914791A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893914791 DE3914791A1 (en) 1989-05-05 1989-05-05 Watertight shaft closure - is for underground containers and has flexible petrol- and acid-resistant seals

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19893914791 DE3914791A1 (en) 1989-05-05 1989-05-05 Watertight shaft closure - is for underground containers and has flexible petrol- and acid-resistant seals
DE8915773U DE8915773U1 (en) 1989-05-05 1989-05-05
DD34039190A DD294225A5 (en) 1989-05-05 1990-05-04 Waterproof shaft closure
DE19904033601 DE4033601A1 (en) 1989-05-05 1990-10-23 Watertight shaft closure for underground storage tanks - has three wing screws connecting inner lid to main lid

Publications (1)

Publication Number Publication Date
DE3914791A1 true DE3914791A1 (en) 1990-11-08

Family

ID=6380122

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893914791 Withdrawn DE3914791A1 (en) 1989-05-05 1989-05-05 Watertight shaft closure - is for underground containers and has flexible petrol- and acid-resistant seals

Country Status (2)

Country Link
DD (1) DD294225A5 (en)
DE (1) DE3914791A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8800402U1 (en) * 1988-01-15 1988-03-03 Niederberg-Chemie Gmbh, 4133 Neukirchen-Vluyn, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8800402U1 (en) * 1988-01-15 1988-03-03 Niederberg-Chemie Gmbh, 4133 Neukirchen-Vluyn, De

Also Published As

Publication number Publication date
DD294225A5 (en) 1991-09-26

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