EP2924173A1 - Shaft cover - Google Patents

Abstract

The invention relates to a manhole cover, wherein the manhole cover comprises at least one outer support frame and an inner cover frame, support frame and cover frame are provided congruent with respect to the height in the closed state of the manhole cover, and at least in the cover frame a filling formed corresponding to a covering extending outside the manhole cover Paving is arranged or can be arranged and the cover frame is pivotable relative to the support frame via a pivoting device wherein the pivoting device is associated with at least one actively acting pneumatic, hydraulic or electromechanical drive with a drive shaft and the pivoting device, both on the support frame and the cover frame attacks To pivot the cover frame relative to the support frame for opening and closing the manhole cover.

Description

The invention relates to a manhole cover, in particular with a plastering or filling.

Such manhole covers are used, in particular in the field of high-quality paving or floor coverings, as used for example in shopping centers, airports, railway stations or the like. The problem with this is that you have to adapt the manhole cover to the particular screening of a floor covering, such as a pavement or provided with plates cover layer without the manhole cover to a change of the grid or the pattern in the Manhole cover leads. When used as intended, naturally high demands must be placed on these manhole covers. Thus, even very heavy vehicles must be able to roll over the manhole cover without running the risk of deforming or damaging the manhole cover in any way. In the prior art, this has been solved so far that a support frame and a cover frame are provided in the closed state of the manhole cover congruent with respect to the height, the cover frame or lid is fitted snugly into the support frame, so that relatively little game for a movement is present , Due to the high load capacity and in particular the strength of the floor covering, designed as paving or with plates or poured, the weight of the cover is of course very high, which means that you can not move it manually in the art, but this must be realized with appropriate tools, such as by means of a hoist or a cable or the like. If, for example, gas springs are used to support the opening of the manhole cover, the result is that at some point the opening takes place in a jerky manner, which naturally increases the accident risk for the operators accordingly. The closing itself again requires a considerable effort to overcome this force at a certain point, so that here appropriate hoists or vehicles must be used to close the shaft again. In the smallest grid of, for example, 900 x 900 mm, the weight of a manhole cover or of the cover frame is given as approx. 240 kg. This makes it clear that, of course, a single person can never handle this, you need the appropriate tools.

Based on this prior art, it is an object of the invention to provide a manhole cover, the aforementioned Disadvantages no longer has, in particular, very easy open and closed again.

The invention is based on the aforementioned prior art and proposes a manhole cover, in particular with a paving or filling, wherein the manhole cover comprises at least one outer support frame and an inner cover frame, support frame and cover frame provided in the closed state of the manhole cover congruent with respect to the height are and at least in the cover a corresponding to a trained outside of the manhole cover covering filling or paving arranged or can be arranged and the cover frame relative to the support frame via a pivoting device is pivotable.

The manhole cover is characterized in that the pivoting device is assigned at least one actively acting pneumatic, hydraulic or electromechanical drive, in particular directly or indirectly acting on a drive shaft and engages the pivoting device on both the support frame and the cover to the cover frame over the Swing support frame for opening and closing the manhole cover.

In the context of the present invention, an actively acting drive means a drive which performs an actuation of the pivoting device after energy has been supplied. In contrast, is a passive, not provided in the invention drive, for example, a gas spring or the like, the drive energy stores and, if necessary, releases, for example, to open the manhole cover. In this regard, the invention is clearly and advantageously demarcated from known devices. Surprisingly, it has been found that by using an actively acting hydraulic, pneumatic or electromechanical drive a much more accurate and better controllable Opening and closing the manhole cover is possible. The opening or closing movement can be controlled, stopped and possibly reversed at any time via the active drive. Unintentional snapping the manhole cover, as may occur, for example, when using passive drives, such as gas springs or the like, is effectively prevented.

The fact that an active, pneumatic, hydraulic or electro-mechanical drive is used, it is now no longer necessary that an opening of the manhole cover, for example by means of a hoist must be made, but you can with the simplest tools, such as a small crank or by means a conventional cordless screwdriver operate the drive and open the manhole cover and close again. The support frame is anchored in the intended use in the ground or on the shaft, for example, concreted. The at least one pneumatically, hydraulically or electromechanically acting drive can be provided, for example, with corresponding drive means to drive the hydraulic, the pneumatic or electromechanical pivoting of the pivoting device.

Attacking both the support frame and the cover frame is of course required to effect a pivotal movement, so, for example, in a particular embodiment, a hydraulic cylinder may be connected to both the support frame and the cover frame via respective axes, such that upon application of the hydraulic cylinder Pressure an opening, while in the reduction of pressure, of course, a closing operation can then take place. The same can of course be realized pneumatically or electromechanically. However, a variant with a hydraulic drive for the swivel device is preferred. The drive then acts on a hydraulic pump, either by hand or, as already mentioned, with a cordless screwdriver or other suitable drive means, if necessary, also driven by a corresponding adapter. Now it is possible for a single operator to lift and also close a manhole cover weighing, for example, 240kg or more. The problems of the prior art are thus completely eliminated by the solution according to the invention. In addition, the design is very elegant and fits wonderfully into the pattern of a corresponding floor covering, because the pivoting device is hidden in the closed state. For example, high-quality tiles can form the floor covering or else correspondingly designed floor coverings with corresponding patterns. The manhole cover according to the invention can be adapted to different grid, which will be highlighted later.

According to an advantageous development, it is provided that at least one pivot axis is provided, on which the support frame and the cover frame are movably connected to each other. This is done in the simplest form by an almost concealed hinges, which is provided on both sides of the support frame and cover, respectively, so that can be used by this pivot axis, for example, with appropriately designed hinge pin to a relatively easy common pivoting movement.

As already mentioned, extremely high aesthetic requirements are placed on the design of the manhole cover according to the invention, in particular of architects for such structures in which such a high-quality floor covering is used. For this reason, it is of course necessary that the pivoting device is arranged in the installed position or in the closed position of the manhole cover below the cover frame. It is advantageously designed so that they neither the closing movement still impedes the opening movement in any way. For example, if the pivoting device is provided as a hydraulically driven pivoting device, both a hydraulic cylinder, and the corresponding pump and the corresponding reservoir or tank for the hydraulic fluid below the cover frame is provided.

Preferred is an embodiment of the manhole cover with a hydraulic drive or acting on a hydraulic pivoting device drive and operatively connected to the pivoting swivel cylinder, a actuatable via the drive pressure generator comprises a media reservoir and at least one supply line to the pressure generator and a pressure line to the swivel cylinder ,

The supply line to the pressure generator can of course be used at the same time by appropriately controlled changeover valve for emptying the hydraulic cylinder. If one uses a pneumatic drive, so of course the cylinder will be provided as a pneumatic cylinder. If a pneumatic actuation is provided, a highly accurate adaptation of the cylinder formation and the pressure design takes place.

In a further development of the manhole cover, it is considered advantageous if the tilting device is electromechanically, i. is formed with an electric drive. The pivoting device is a cooperating with the particular electromechanical drive gear and a preferably arranged in a threaded sleeve rack, which engages the support frame and cover assigned.

The electromechanical drive can then be designed, for example, such that a supply line is lead to a motor provided as an electric drive. This can be both a normal electric motor and a linear motor. By pressing the engine with a corresponding translation via a gear or by engaging a linear motor to a corresponding rack, the pivoting device is formed electromechanically acting. All vorgenanten embodiments (pneumatic, hydraulic and electromechanical) are equivalent side by side and thus allow it to provide each adapted to the circumstances manhole cover available

In a preferred embodiment, it is provided that the drive or the drive shaft has a connection adapter. At this barge a drive means are connected, which provides the necessary kinetic energy for the drive. The connection adapter is, in particular via a hexagon socket, with a motor drive means, preferably a drill, a cordless screwdriver or a manually operated drive means, such as. a crank, a torsion bar, a hex key or the like connectable.

The drive means can be brought in the simplest possible way with the drive or the drive shaft in engagement to perform the operation of the pivoting device. The use of a hexagon socket adapter is the most mechanically stable and most suitable for power transmission variant. The invention of the but not limited thereto. At the same time or alternatively, of course, another configuration can be provided which is suitable for being connected to or engaged with those in the drive means.

It is considered advantageous in this context if the drive shaft or the connection adapter is concealed out to the top of the cover frame. Preferably, the connection adapter or the drive shaft has a protective cap. This prevents on the one hand the unauthorized access to the connection adapter or the pivoting device and protects the other the entire device against incoming dirt.

An additional safeguard is achieved in an advantageous development in that the drive shaft, the connection adapter or the protective cap is lockable via plug lock. It is provided in a preferred variant that the lock plug is removably arranged. This embodiment variant allows retrofitting or only as needed securing the device.

The cover according to the invention is box-shaped, wherein the height of the box is adapted to the height of the Auspflasterung or filling or is adaptable. Depending on the size of the manhole cover, of course, the height of the box may of course be different in order to accommodate different coverings better. Furthermore, it is of course important that the height of the filling course, the height of the finished floor must match congruent and of course in the construction must have at least the same height as the floor itself.

According to the invention, it has been found that it is advantageous if support frames and cover frames are made of stainless steel. This, of course, is also a result of the stringent demands made on the manhole cover of the invention on a regular basis. In order to avoid corrosion, use is made of stainless steel, which remains for a long time without externally visible changes in the intended use and is characterized overall by a very good and aesthetically aesthetically pleasing property.

Another aspect of the manhole cover according to the invention is characterized in that the support frame has a perpendicular to the vertical of the support frame extending inward, that is facing the manhole opening and the support on an edge of a shaft to be covered, but preferably on a shaft surrounding Filling can be placed and anchored there is. Accordingly, as previously outlined, the support frame is formed as a type of angled frame which is square or rectangular, the sides of which are formed from an angle profile. With regard to the support of the support frame is to be noted that it is of course quite possible and in the past was practiced so that this support frame at least partially directly on the edge of the shaft to be covered, was placed and fastened there. However, this has the disadvantage that when subsidence of the soil in the edge region of the manhole cover cracks in the coating arise here, which are then not compensate. For this reason, it has been proven that the support frame with its facing the shaft opening pad not placed directly on the shaft opening or on the shaft, but on the soil surrounding the shaft or there existing backfill, which is of course to compact accordingly. This has the advantage that when subsidence phenomena of the previously described disadvantage no longer occurs, if one considers a certain distance between the upper shaft end and the support of the support frame. This embodiment is particularly intended for road construction and road construction and can also be realized in the asphalted area or concrete pavements with the invention.

Due to the high demands on the load-bearing capacity of the manhole cover, at least one, preferably several, reinforcement (s) are / are arranged or provided in the installation direction below the cover frame. This serves (s) to increase the overall load capacity of the manhole cover and / or in particular to ensure a load capacity of up to 40t.

This reinforcement (s) is / are preferably formed as a U-profile or square tube or as a rectangular tube and preferably attached to a bottom plate of the box-shaped cover frame (ie the manhole cover), in particular welded. This makes it possible to ensure a very high load capacity of the entire manhole cover, as already mentioned with loads of up to 40t.

Advantageously, in the gain of the media reservoir, so for example a hydraulic oil tank arranged. Alternatively, the reinforcement can be formed as a hollow body and at the same time form the media reservoir. Accordingly, then at least one end of the media reservoir, which is designed as a reinforcement, the corresponding openings for the Medienzuführ- or provided for the media return lines. With a corresponding reversal of the pump, it is of course possible to get along with a single line to the hydraulic cylinder.

If there are gaps between two and more reinforcements, these are advantageously utilized so that the swivel cylinder and / or the pressure generator, that is to say the pump, is / are arranged in a gap between two reinforcements. Thus, of course, the space required in height is reduced accordingly, since due to the configuration of the reinforcements, the total height is then specified for the entire manhole cover or the cover.

As already mentioned, the swivel cylinder is attached both to the cover frame and to the support frame and according to an embodiment of the invention once on a cylinder axis on the cover frame, the piston rod of the swivel cylinder on a piston axis on the support frame, preferably of course on the support a little further inward, so as to make the leverage cheaper.

Preferably, a securing device is provided according to the invention, the cover frame in the open state against a unintentional locking secures. For this purpose, a securing rod is preferably provided, which is supported in the open state on the support frame or on the outside of the manhole cover extending covering or cooperates with a safety angle on the support frame and is engaged with this. The rod is, for example, mounted on one side movable on the cover frame and is automatically pulled along when opening or when pivoting the cover. The rod then slides along with the cover frame in the direction of the pivot axis until it has arrived, for example, in the 90 ° position. Shortly before while the safety bar is guided over an angle on the support frame, which is attached to the support frame respectively on the support so that the safety bar is in a sufficient angle and then secures the cover frame against accidental repulsion. If you want to close the cover of the manhole cover again, you must briefly raise the fuse bar slightly so that it can be performed on the safety angle. Thereafter, the safety bar automatically slides in a rest position below the cover frame together with the closing movement of the cover frame.

In an advantageous development, a shaft guard is additionally or alternatively provided to the securing device. This is designed as at least one arranged on the cover frame or support frame pivoting gate. The shaft lock prevents unintentional access to the open shaft when the manhole covers are open. After pivoting the manhole cover or the cover frame, the pivot gate can be pivoted so that the three unprotected sides of the shaft are locked. At least on one side, the gate has an access or access door that allows access to the shaft. When not in use, the access door has a lock, so that here too a backup of the shaft is ensured. Alternatively to a pivoting of the on the cover frame attached gate, there is the possibility that this as after opening the shaft, ie after pivoting of the cover frame from the shaft to be covered auszuschbares gate, in particular pivoting gate is formed. In the shaft or support frame, a guide for the gate can be provided for this purpose.

A further embodiment provides that the shaft guard at the same time provides the security device. The shaft guard is supported on the support frame or the covering extending outside the manhole cover. At the shaft guard additional support feet or projections can be arranged, on which rests the gate in use. The support legs or projections then bear the load of the gate or the cover frame to be supported.

Of advantage, it is of course also if, as provided according to the invention in a variant, a drive shaft is provided for the pressure generator, which is guided to the top of the cover frame and the drive shaft has a connection adapter, which is preferably designed as a hexagon socket, by means of a drill , a cordless screwdriver, a means to be operated manually, such as a crank, a corresponding Allen key or the like can be connected to the drive shaft. As already mentioned, thus a very easy manual movement of the manhole cover or the cover frame is given.

The invention also proposes that grid pins or raster studs are provided, which are adapted to a predeterminable grid of the floor covering or are adaptable. The advantages of such a design have already been described. The raster nubs secure when inserting the covering in the cover, that the covering the corresponding grid or Pattern gets. This Rasternoppen serve therefore the alignment and in particular securing a paving or a corresponding coating. But they can also serve as a support for the lining to make the load distribution at the bottom of the cover cheaper.

Fig. 1

eine dreidimensionale Darstellung einer Ausführungsform der Schachtabdeckung nach der Erfindung,

Fig. 2

eine dreidimensionale Darstellung der Schachtabdeckung nach Fig. 1 aus einem anderen Blickwinkel,

Fig. 3

eine dreidimensionale Darstellung der Schachtabdeckung nach Fig. 1 und 2 im geschlossenen Zustand ohne Füllung beziehungsweise Belag,

Fig. 4a

eine bevorzugte Ausführungsformen der Schachtabdeckung in seitlicher Schnittdarstellung,

Fig. 4b

eine Detailansicht des in der Schachtabdeckung vorgesehenen Anschlussadapters, und

Fig. 5

eine perspektivische Darstellung der Schachtabdeckung mit zugeordneter Sicherungseinrichtung.

In the drawing, the invention is shown schematically in particular in one embodiment. Show it:

Fig. 1

a three-dimensional representation of an embodiment of the manhole cover according to the invention,

Fig. 2

a three-dimensional view of the manhole cover after Fig. 1 from a different angle,

Fig. 3

a three-dimensional view of the manhole cover after Fig. 1 and 2 in the closed state without filling or covering,

Fig. 4a

a preferred embodiments of the manhole cover in side sectional view,

Fig. 4b

a detailed view of the provided in the manhole cover connection adapter, and

Fig. 5

a perspective view of the manhole cover with associated safety device.

In the figures, the same or corresponding elements are denoted by the same reference numerals and therefore, if not appropriate, will not be described again.

The Fig. 1 shows a first embodiment of the manhole cover according to the invention. This is a three-dimensional representation. The support frame 1 surrounds the entire manhole cover I and is installed in the intended condition in the ground or attached to or on the shaft itself. This can be done for example with a mounting bracket or a fastening tab 11. The height of the support frame 1 is designated by h. On the inwardly facing side is a support 10 of the support frame 1. This support 10 is formed at right angles to the side wall of the support frame 1 and forms the support for the support frame on the ground. As can be seen, is in the illustration on the left side of a pivot axis a, which is indicated here for example by a hinge pin 12. In the pivoted position of the cover 2 is visible. This is also box-shaped and of course adapted exactly to the size of the support frame 1. With the arrow and the reference numeral 30, the pivoting device with associated drive 200 is indicated schematically. The pivoting device 30 consists in the illustrated embodiment of a driven via the drive 200 hydraulic swing cylinder 3 with the piston rod 31, a pressure generator 4, which may be formed for example as a hydraulic pump, a pressure line 41, which is guided by the pressure generator to the pivot cylinder 3 and a supply line 42, which supplies the pressure generator 4 and the swivel cylinder 3 with corresponding hydraulic oil. The drive 200 of either over has its own power supply or can be driven by a suitable drive means from the outside, thereby operates the hydraulic pump. The pivoting device 30 is arranged between two reinforcements 23, 24. These reinforcements 23, 24 are formed for example as U-shaped rectangular profiles. As can be seen, while the pivoting device 30 is arranged in total that, for example, pressure generator 4 and pivot cylinder 3 between the two reinforcements 23, 24 are located while the media reservoir 43 is hidden directly in the reinforcement 23. The swivel cylinder 3 engages with its piston rod 31 on a piston axis 32. This is attached to the support 10 of the support frame 1 so that the piston axis 32 is slightly in the interior of the support frame. This is justified in order to obtain a favorable angular ratio for the swivel cylinder 3 for raising or lowering the cover 2 here. In the upper region, a cylinder axis 33 is provided, on which the swivel cylinder 3 is likewise arranged to be pivotable or movable. Thus, a pivoting of the cover 2 relative to the support frame 1 on the axis a is possible. Schematically with a curved arrow, the entire manhole cover I is designated.

In Fig. 2 is the manhole cover I analog Fig. 1 presented, but from a different angle. Thus, one has a good view of the reinforcements 21, 22, 23, 24, within which the pivoting device 30 with associated drive 200 is located. Here again the same reference numerals analogous to those in Fig. 1 already used features, so that a renewed presentation is omitted here. It can be better seen in this illustration, the arrangement of the pivoting device 30 with its elements, namely the media reservoir 43, which is arranged here in the reinforcement 23, and the pressure generator 4 and the two lines, namely pressure line 41 and feed line 42. The pivot axis a is on This page can be seen through the hinge pin 13 specified or led. The reference numeral 5 denotes the shaft opening in general. As for the execution of the manhole cover I overall, the shape of the shaft itself is not crucial, can be dispensed with a corresponding representation here.

The Fig. 3 also shows a three-dimensional representation of the manhole cover I according to the invention. In this illustration, the manhole cover I is shown in the closed state and without filling or covering 20. This is also schematically indicated only by an arrow. On the bottom plate 25 of the cover 2 raster studs 28 or grid pins are schematically indicated, which give a certain pattern. For example, you can fix such a paving very beautiful and accurate, if you shed it, for example, then with a potting compound. The drive shaft 27 is arranged in a tube which is closed with a screw. After removing the screw, an adapter is then visible, for example, according to one embodiment, which serves for example for receiving a hexagon socket wrench (Allen key). There, for example, it is possible to apply a cordless screwdriver or a hand crank in order to actuate the pressure generator 4 or the drive 200 associated therewith. In a clockwise movement of the pressure generator 4, the operated via the drive hydraulic pump is operated so that the cylinder of the swing cylinder 3 is filled with, for example, the hydraulic fluid to push out the piston rod 31, while in an opposite direction of rotation, a discharge of the pivot cylinder 3, whereby the cover frame lowers. In the Fig. 2 is still a safety angle 14 shown, the operation has already been described earlier. He cooperates with a support rod, not shown here, in the end position, that is preferably in the exact vertical position of the cover frame 2 with respect to the support frame 1 an unwanted pivoting back of the Cover frame 2 prevents. By the reference numeral 26 is still a support piece referred to, which serves to lower the cover frame 2 accurately in the support frame 1 and to prevent too far lowering.

FIG. 4a shows an embodiment of the manhole cover I with below the cover frame 2 arranged securing device 300. The pivoting gates 301 of the securing device 300 are shown here in the folded state. Also in the embodiment shown here, a swivel cylinder 3 is provided, via which the opening or closing of the cover 2 is realized. Visible here is also the drive 200, via which the actuation of the pivoting cylinder 3 takes place. The other elements of the hydraulics are not recognizable, since they are covered by the reinforcements 21, 22, 23, 24. Associated with the drive 200 is a drive shaft 27, to which a drive means, for example a crank or a drilling machine, can be connected via the connection adapter 201. The connection adapter 21 or the drive shaft 27 terminates flush on the upper side 202 of the cover frame, so that there are no protruding parts.

FIG. 4b shows the connection adapter 21 in detail. A drive means acts on the drive 200 via the connection adapter 27, thereby realizing the operation of the pivoting device 30. The connection adapter 27 is secured against unauthorized access by a plug lock 204. The keyhole 205 provided here serves to introduce a key, via which the plug lock 204 can be removed from the connection adapter 27. After removal of the plug lock 204 then actuation of the drive 200 can take place. Not only a mechanical actuating means can be connected to the drive 200 via the connection adapter 201. Alternatively, of course, it is also possible that an electric drive 200 or an energy or power supply for an electromechanical drive 200 is connected here becomes. The protective cap 203 does not necessarily have to be used in conjunction with a plug-in lock 204. Of course, the protective cap 203 can also be provided as a simple plug, which is inserted into a hexagon socket provided, for example, in the connection adapter 201 and removed therefrom for actuation of the drive 200.

If the drive 200 is designed, for example, as a hydraulic or pneumatic drive, then it is depressurized in the closed state of the cover frame 2. Only upon actuation of the drive 200 or the thus carried out operation of a hydraulic pump is a pressurization of the device, resulting in the lifting of the cover 2. In addition to an actuation of the drive 200 with an example motorized drive means, that is, an electric motor, a drill or a battery screw is of course the possibility that in an emergency operation, a use of a crank to raise or lower the cover frame.

FIG. 5 shows a development of the manhole cover I with unfolded or pivoted cover frame 2. In addition to the previously described security device a shaft guard 300 is provided here. This has two arranged on the cover frame 2 pivoting gate 301. The shaft lock 300 prevents accidental access to the open shaft when the manhole covers I are open. After pivoting the manhole cover I or the cover frame 2, the pivot gates 301, as in FIG. 5 shown, unfolded and thus prevent unintentional access to the shaft from two sides. In addition, 302 are arranged on the pivot gates 301, which can be closed by a lock 303. As a result, the third side is secured against unintentional access. To enter the slot, the door 302 is opened and enabled so the entrance. The doors 302 are connected by hinges 304 to the pivoting gates 301. The pivoting gates 301 themselves are likewise connected to the cover frame 2 via corresponding hinges 305 so that, when the cover frame 2 is closed, the pivoting gates 301 can be arranged below the cover frame 2 to save space. After opening the manhole cover I, the pivot gates 301 are unfolded and thus provided a backup. In order to increase the stability of the pivoting gates 301, they have a stiffener 306. About the shaft guard 300 three unprotected sides of the shaft can be locked. The operation of the shaft guard 300, that is, the unfolding of the pivot gate 301 can be done automatically or manually. Thus, for example, there is the possibility that after completion of the entanglement of the cover frame is an independent from flaps of the pivot gate 301. The pivot gate 301 has a suitable height to prevent unintentional exceeding of the pivot gate 301.

The claims now filed with the application and later are attempts to formulate without prejudice to the attainment of further protection.

If, on closer examination, in particular also of the relevant prior art, it appears that one or the other feature is beneficial for the purpose of the invention, but not crucial, it is of course already desired to have a formulation which is such a feature , in particular in the main claim, no longer having.

It should further be noted that the embodiments and variants of the invention described in the various embodiments and shown in the figures can be combined with one another as desired. One or more features are arbitrary interchangeable. These feature combinations are also disclosed with.

The references cited in the dependent claims indicate the further development of the subject matter of the main claim by the features of the respective subclaim. However, these are not to be understood as a waiver of obtaining independent, objective protection for the features of the dependent claims. Features that have hitherto been disclosed only in the description can be claimed in the course of the method as of essential importance to the invention, for example to distinguish from the prior art.

Features which have been disclosed only in the description, or also individual features of claims comprising a plurality of features, may at any time be included in the first claim for distinction from the prior art, even if such features are associated with others Characteristics were mentioned or achieve particularly favorable results in connection with other features.

Claims (15)

Manhole cover, in particular with a Auspflasterung or filling, wherein the manhole cover at least one outer support frame (1) and an inner cover frame (2), support frame and cover frame in the closed state of the manhole cover (I) congruent with respect to the height (h) are provided and at least in the cover frame a filling (200) or paving formed corresponding to a covering extending outside the manhole cover is arranged or arrangeable and the cover frame is pivotable relative to the support frame via a pivoting device (30), characterized in that the pivoting device (30) at least an actively acting pneumatic, hydraulic or electromechanical drive (200) is associated with a drive shaft (27) and the pivoting device (30), both on the support frame (1) and the cover frame (2) engages to the cover frame (2) relative to the Support frame (1) for the To open and close the manhole cover (I) to pivot. A manhole cover according to one of the preceding claims, characterized in that the drive (200) has a swivel cylinder (3) operatively connected to the swiveling device (30) with a pressure generator (4) which can be actuated via the drive (200) and a media reservoir (43) at least one supply line (42) to the pressure generator (4) and a pressure line (41) to the pivot cylinder (3) and / or the pivoting device (30) cooperating with the particular electromechanical drive (200) gear and a preferably arranged in a threaded sleeve rack associated with support frame (1) and cover frame (2). Manhole cover according to one of the preceding claims, characterized in that the drive (200) or the drive shaft (27) has a connection adapter (201), wherein the connection adapter (201), in particular via a hexagon socket, with a motor drive means, preferably a drill, a cordless screwdriver or a manually operated drive means, such as a crank, a torsion bar, a hex key or the like is connectable and / or the drive shaft (27) or the connection adapter (201) hidden to the top (202) of the cover (2) is guided and preferably has a protective cap (203), in particular wherein the drive shaft (27), the connection adapter (201) or the protective cap (203) is in particular lockable via a removable plug lock (204). Manhole cover according to one of the preceding claims, characterized in that at least one pivot axis (a) is provided on the support frame (1) and cover frame (2) are movably connected to each other. Manhole cover according to one of the preceding claims, characterized in that the pivoting device (30) is arranged in the installed position below the cover frame (2). Manhole cover according to one of the preceding claims, characterized in that the cover frame (2) is box-shaped and the height (h) of the box is adapted or adaptable to the height of the paving or filling (20). Manhole cover according to one of the preceding claims, characterized in that the support frame (1) and cover frame (2) are formed from stainless steel. Manhole cover according to one of the preceding claims, characterized in that the support frame (1) has a support (10) which extends at right angles to the vertical of the support frame (1) and faces inwards, ie onto a shaft opening (5), and the support (10) on an edge of a shaft to be covered, but preferably can be placed on a shaft surrounding the backfilling. Manhole cover according to one of the preceding claims, characterized in that at least one in the installation direction below the cover frame (2) arranged reinforcement (21, 22, 23, 24) or stiffening is provided, in particular to increase the load capacity of the manhole cover (I) and / or to provide a load capacity of the manhole cover (I) of up to 40 t and / or the reinforcement (21, 22, 23, 24) as a U-profile or square or rectangular pipe and preferably on a bottom plate (25) the box-shaped cover frame (2) attached, in particular welded and / or in the reinforcement (21, 22, 23, 24) of the media reservoir (43) is arranged or the reinforcement (23) is designed as a hollow body, the media reservoir (43) forms. Manhole cover according to one of the preceding claims, characterized in that at least part of the pivoting device (30), preferably the drive (200) and / or the swivel cylinder (3) and / or the pressure generator (4), in the reinforcement (21, 22 , 23, 24) and / or a gap between two reinforcements (23, 24) is arranged. Manhole cover according to one of the preceding claims, characterized in that the swivel cylinder (3) on a cylinder axis (33) on the cover frame (2) and a Piston rod (31) of the pivoting cylinder (3) on a piston axis (32) on the support frame (1), preferably on the support (10) engages. Shaft cover according to one of the preceding claims, characterized in that a securing device is provided which secures the cover frame (2) in the open state against unintentional closing, wherein preferably a securing rod is provided which in the open state on the support frame (1) or on the outside of the manhole cover (I) extending covering or with a safety angle (14) on the support frame (1) cooperates, in particular with the safety angle (14) is engaged. A manhole cover according to one of the preceding claims, characterized in that a manhole guard (300) is provided, the manhole guard (300) being arranged as at least one gate which can be lifted on a cover frame (2) or support frame (1) or can be lifted out of a shaft to be covered. 301) is formed. Manhole cover according to claim 12 or 13, characterized in that the manhole guard (300) at the same time provides the safety device, in particular wherein the manhole guard (300) is supported on the support frame (1) or the covering extending outside the manhole cover (I). Manhole cover according to one of the preceding claims, characterized in that grid pins or nubs (28) are provided, which are adapted or adaptable to a predeterminable grid.

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