Drainage securing device

Abstract

The invention relates to a drain safety device (100) for at least one drain (101), in particular a floor drain, a yard drain or a street drain, comprising: a locking element (10) for closing and opening the drain (101) and a drain housing (20) for rotatably supporting the locking element (10) on the drain (101), wherein the drain housing (20) has a complementary drain opening (21) for the drain (101), and wherein the locking element (10) is movable between two positions (I, II), in particular rotatably: - a closed position (I), in which the drain opening (21) is closed by the locking element (10), and - a release position (II), in which the drain opening (21) is opened by the locking element (10). For this purpose, it is provided according to the invention that the locking element (10) is mounted on a first surface (O1), which in the closed position (I) of the locking element (10) is aligned with the drain (101).a stop (A1) to secure the locking element (10) against overshooting beyond the closed position (II) when the locking element (10) is moved from the release position (II) to the closed position (I), wherein the stop (A1) is made of the same material, monolithically and / or integrally with the locking element (10).

Description

[0001] The invention relates to a drain safety device for at least one drain, in particular a floor drain, a yard drain or a street drain, according to the independent device claim and to a system with a corresponding drain safety device and a tool for actuating the drain safety device according to the independent system claim.

[0002] Drain safety devices are generally known. One example of a drain safety device is known from document DE 33 41 899 C1, and another is known from document KR 2008 0111668 A.

[0003] Drain safety devices are used wherever water-polluting substances are handled or where there is a risk of unintentional discharge of wastewater from the sewer system. These devices are used to retain or regulate wastewater flows. These conventional drain safety devices are usually operated individually using a tool that is attached to the drain safety device from the outside through a drain grate. This tool pivots a locking element between a closed position and a release position. To ensure that the locking element does not flip over beyond the closed position, a stop is usually attached to the bottom of a drain body, inaccessible from the outside. However, the disadvantage of such stops is that they are difficult to install.Often, such stops cannot be retrofitted or replaced if, for example, a stop is broken. If the locking element can move uncontrollably and without braking between the closed and released positions, this can even endanger the safety of those around it and those approaching.

[0004] The object of the present invention is therefore to provide an improved drain safety device in which at least one of the above-mentioned disadvantages can be at least partially overcome. In particular, the object of the present invention is to provide an improved drain safety device which is simple and cost-effective in construction, which is easy to install and maintain, and which is simple, convenient, and easy to operate. Furthermore, it is an optional object of the present invention to provide an improved drain safety device which is reliable in operation, which allows the closure element to be moved between the closed position and the released position in a controlled manner and without tipping over, and which ensures the safety of the environment and people.Furthermore, it is an object of the present invention to provide an improved system with a corresponding drain safety device and a corresponding tool.

[0005] The object according to the invention is achieved by a drain safety device for at least one drain, in particular a floor drain, a yard drain or a street drain, having the features of the independent device claim, in particular from the characterizing part of the device claim, and by a system with a corresponding drain safety device and a corresponding tool having the features of the independent system claim.

[0006] The present invention provides, according to the first aspect: a drain safety device for at least one drain, in particular a floor drain, a yard drain or a street drain, comprising: a closure element for closing and opening the drain and a drain housing for rotatably supporting the closure element on the drain, wherein the drain housing has a complementary drain opening for the drain, and wherein the closure element is rotatably movable between two positions: a closed position in which the drain opening is closed by the closure element, and a release position in which the drain opening is opened by the closure element.

[0007] For this purpose, the invention provides that the closure element has an angled stop on a first surface, which is aligned with the outlet in the closed position of the closure element, in order to secure the closure element in the closed position against tipping over beyond the closed position when the closure element is transferred from the release position to the closed position. The stop is designed from the same material, monolithic, and / or in one piece with the closure element. As mentioned, the stop is designed as an angle.

[0008] When the closure element moves from the release position to the closed position, the stop can rest on a lower edge of the drain body, preventing further movement of the closure element beyond the closed position. The stop allows the closure element to move at an angle of 0° to 90°. In the closed position, the closure element rests essentially horizontally against the drain opening of the drain body, closing it. In the release position, the closure element is aligned vertically, thereby clearing the drain opening of the drain body, which leads into the drain.

[0009] The idea behind the invention is that the stop for securing the closure element against tipping over beyond the closed position is implemented directly on the closure element. The stop is manufactured directly with the closure element from the same material, monolithic and / or in one piece, preferably cast in one piece, and therefore preferably represents a cast part. This achieves several advantages. Firstly, it can be safely and reliably ensured that the closure element does not tip over beyond the closed position. Secondly, a separate fastening step for the stop can be avoided. The stop does not need to be laboriously installed below the drain body. The stop, which is formed in one piece and preferably in a casting with the closure element, is protected against accidental breakage.This also ensures that the closure element can be held in the closed position in a controlled and reliable manner. This increases the safety of the environment and people in the vicinity of the drain.

[0010] In addition, the discharge safety device according to the invention is simple and cost-effective, easy to install and maintain, and simple, convenient, and easy to operate. Furthermore, the discharge safety device according to the invention is reliable and safe in operation and has an extended service life.

[0011] Furthermore, the invention can provide for a drain safety device in which the closure element and the stop are made of a metal or a metal alloy, in particular stainless steel or gray cast iron. In this way, the closure element and the stop can be designed to be stable, break-proof, weather-resistant, acid-resistant, and temperature-resistant over a wide temperature range. The stainless steel version has the advantage of being corrosion-resistant. The gray cast iron version, on the other hand, is cost-effective and robust to manufacture.

[0012] Furthermore, it is conceivable for the closure element and the stop to be made of a metal or metal alloy, particularly a light metal, and to have a stainless steel coating. This allows the weight of the closure element and the stop to be reduced while maintaining the improved surface properties of the elements with regard to stability, breakage resistance, weather resistance, acid resistance, and temperature resistance.

[0013] Furthermore, the invention can provide for a drain safety device in which the closure element and the stop are manufactured as a single cast part, preferably in a single casting, in particular in a common mold (preferably by a casting process). This allows the drain safety device according to the invention to be manufactured simply and cost-effectively, and enables the drain safety device according to the invention to exhibit the advantages of the invention with regard to stability, breakage resistance, weather resistance, acid resistance, and temperature resistance.

[0014] According to the invention, the stop is designed as an angle (or angle-shaped). It is conceivable that, in the closed position of the closure element, a first leg of the stop can point axially from the first surface of the closure element toward the outlet, i.e., downwards, and a second leg of the stop can extend radially outward from the first leg relative to the closure element. In this way, a simple and cost-effective stop can be realized.

[0015] Furthermore, the invention can provide for a drain safety device to have at least one reinforcing rib between the stop and the closure element at the base of the stop. In particular, it is conceivable that a reinforcing rib for the closure element can be provided on both sides of the base of the stop. In this way, the break-off resistance of the stop can be increased.

[0016] It is also conceivable that at least one reinforcing rib at the base of the stop could extend across the entire width of the stop. This way, the stop can be made break-proof across its entire width.

[0017] Furthermore, it is conceivable that the at least one reinforcing rib may have a concave shape. This can provide a certain degree of flexibility to absorb shocks at the reinforcing rib.

[0018] Furthermore, the invention can provide for a drain safety device that the closure element has an actuating lever on a second surface, which faces away from the drain in the closed position of the closure element, in order to be able to transfer the closure element from the outside with respect to the drain between the closed position and the release position using a preferably fork-shaped tool. It is also conceivable that the actuating lever can be made of the same material, monolithic, and / or integral with the closure element and the stop. In this way, a simple and cost-effective drain safety device can be provided that is easy to operate.

[0019] Furthermore, in a drain safety device, the invention can provide for the actuating lever to be inclined at an acute angle to the second surface of the closure element. It is conceivable that the angle can be substantially 45°. In this way, a rotatable actuation of the closure element at an angle between 0° and 90° can be enabled.

[0020] Furthermore, in a drain safety device, the invention can provide for the actuating lever to have a greater material thickness, in particular at least twice as thick, preferably two to four times thicker, than the closure element. This provides a stable actuating lever for attaching the tool.

[0021] Furthermore, in a drain safety device, the invention can provide that the actuating lever is supported on the closure element essentially via a rotational axis of the closure element. This allows for a substantially common rotational axis for moving the tool and for moving the closure element, thus enabling easy actuation of the closure element.

[0022] Furthermore, the invention can provide for a drain safety device that at least one support rib is provided between the actuating lever and the closure element, in particular at or at an acute angle between the actuating lever and the closure element. It is conceivable that the at least one support rib is made of the same material, monolithic, and / or integral with the closure element and the actuating lever. In this way, the breakage security of the actuating lever can be ensured when the closure element is transferred from the release position to the closed position.

[0023] Furthermore, it is conceivable that the at least one support rib can be arranged along the entire width of the operating lever. In this way, the operating lever can be made break-proof along its entire width.

[0024] Furthermore, it is conceivable that the at least one support rib may have a concave shape. This provides a certain degree of flexibility for the damping effect on the actuating lever when transferring the locking element from the release position to the closed position.

[0025] Furthermore, the invention can provide for a drain safety device that at least one stabilizing rib is provided between the actuating lever and the closure element, in particular at an obtuse angle between the actuating lever and the closure element. It is conceivable that the at least one stabilizing rib can be made of the same material, monolithic, and / or integral with the closure element and the actuating lever. In this way, the breakage security of the actuating lever can be enabled when transferring the closure element from the closed position to the release position.

[0026] Furthermore, in a drain safety device, the invention can provide that the at least one stabilizing rib is arranged along the entire width of the actuating lever. In this way, the actuating lever can be made break-proof along its entire width.

[0027] Furthermore, it is conceivable that the at least one stabilizing rib may have a concave shape. This can also provide a certain degree of damping on the actuating lever when the locking element is moved from the closed position to the released position.

[0028] Furthermore, in a drain safety device, the invention can provide that the closure element has two pivot bearings on the first surface in order to rotatably support the closure element on the drain housing. It is conceivable that the pivot bearings are made of the same material, are monolithic and / or are designed in one piece with the closure element and the stop. The pivot bearings can, for example, be in the form of bushings with receiving openings, e.g. for bearing bushes or the rotation axis itself, which can be formed on the first surface of the closure element. The bearing bushes can accommodate the rotation axis, which in turn can be supported on the drain housing. In this way, the pivot bearing of the closure element on the drain housing can be implemented simply and cost-effectively.

[0029] Furthermore, in a drain safety device, the invention can provide that the closure element has two bearing bushes, in particular in the form of collar bushes, on the pivot bearings. The bearing bushes can be designed, in particular, for a sliding bearing of a rotary axis. Advantageously, it is conceivable for the bearing bushes to be made of a plastic, in particular of an inert and chemically resistant polymer with a low coefficient of friction. Since the drain safety devices are often exposed to harsh weather conditions for years and come into contact with wastewater, metals tend to rust sooner or later. As a result, pivot bearings and rotary axes can become caked together, or in other words, form a materially bonded connection. The closure element can then jam and can no longer be operated.This can disable the drain safety device and pose a significant safety risk. Plastics, however, are not affected by these effects. This simple and cost-effective measure can prevent the drain safety device from being impaired. Advantageously, this allows the locking element to be safely activated, even after long periods of non-use.

[0030] Furthermore, the invention can provide for the bearing bushings to be provided as separate components in a drain safety device. Thus, bearing bushings can be implemented simply and cost-effectively.

[0031] It is also conceivable that the bearing bushings could be applied to the pivot bearings in the form of a coating, or that the bearing bushings could be molded onto the pivot bearings. This allows the bearing bushings to be designed to be captive. This also eliminates the need for a separate fastening step for the bearing bushings to the pivot bearings.

[0032] Furthermore, in a drain safety device, the invention can provide for the closure element to have two bearing support ribs on the pivot bearings. This provides a simple and cost-effective way to ensure the stability of the pivot bearings against breakage. The bearing support ribs can be concave.

[0033] Furthermore, in a drain safety device, the invention can provide for the closure element to be rotatably supported on the drain housing by means of a rotational axis. It is conceivable for the rotational axis to be made of a metal or a metal alloy, in particular stainless steel, or for the rotational axis to be made of a metal or a metal alloy, in particular light metal, and to have a stainless steel coating. This enables simple and cost-effective mounting of the closure element on the drain housing.

[0034] It is also conceivable for the drain housing to have two mounts for the rotary axis. This allows for simple and cost-effective mounting of the rotary axis on the drain housing.

[0035] Advantageously, a sleeve-shaped seal can be provided on the drain body, which can enclose the drain opening on its circumference. The closure element can rest against the seal in the closed position, forming a seal. This can ensure that the drain is leak-proof.

[0036] Furthermore, in a drain safety device, the invention can provide complementary openings for the receptacles on the seal. Thus, with simple design measures, it is possible to ensure that the closure element rests against the seal in the horizontal position, namely the closed position.

[0037] Furthermore, it is conceivable for the seal to have a telescopic and / or conical inner wall that tapers in a bottom-to-top direction relative to the outlet. This allows the seal to be compressed more on the side of the closure element where the actuating lever is located and where more pressure can be easily and conveniently applied when transferring the closure element from the release position to the closed position. This also allows the closure element to be easily moved into the sealing closed position on the side of the closure element that is free of the actuating lever.

[0038] Furthermore, in a drain safety device, the invention can provide that two, preferably cup-shaped, stop bodies are provided on the drain housing, in particular axially viewed below the receptacles for the rotation axis, to secure the closure element against tipping over in the release position. This enables a reliable stop of the closure element in the release position.

[0039] Furthermore, in a drain safety device, the invention can provide for the stop bodies to be attached to the drain housing in a form-fitting and / or force-fitting manner, in particular by means of screws. Thus, the stop bodies can be attached to the drain housing easily and conveniently.

[0040] Furthermore, the invention can provide a drain safety device with a mounting ring for supporting the drain housing on the drain, wherein, in particular, the drain housing is secured to the mounting ring in a form-fitting and / or force-fitting manner. This enables simple installation of the drain safety device on the drain.

[0041] The present invention provides a system with a drain safety device, which can be designed as described above, and a preferably fork-shaped tool for actuating the closure element between the closed position and the release position. The system according to the invention can achieve the same advantages described above in connection with the drain safety device according to the invention. These advantages are incorporated herein by reference.

[0042] Further advantages, features, and details of the invention will become apparent from the following description, in which exemplary embodiments of the invention are described in detail with reference to the drawings. They show: Figure 1 shows a schematic representation of a drain safety device according to the invention in a sectional view, Figure 2 shows a schematic representation of a closure element according to the invention in several views from the side and in a view from above as well as a schematic representation of an axis of rotation and a schematic representation of stop bodies, Figure 3 shows a schematic representation of a drain housing according to the invention in a plan view and in a sectional view, Figure 4 shows a schematic representation of a drain ring according to the invention in a sectional view, and Figure 5 shows a schematic representation of a seal according to the invention in a plan view and in a sectional view.

[0043] In the following figures, identical reference numerals are used for the same technical features, even in different embodiments. As a rule, the reference numerals of the same embodiments are described only once.

[0044] The Figure 1 shows a drain safety device 100 according to the invention for at least one drain 101, which can be designed as a floor drain, a yard drain, or a street drain. The drain safety device 100 according to the invention has the following elements: a closure element 10 for closing and opening the drain 101 and a drain housing 20 for rotatably supporting the closure element 10 on the drain 101. The closure element 10 according to the invention is also shown in several views in the Figure 2 The drain housing 20 according to the invention is further shown in several views in the Figure 3 shown.

[0045] As it is in the Figure 1 As shown, the drain housing 20 according to the invention has a complementary drain opening 21 for the drain 101. As is also shown in the Figure 1 As shown, the closure element 10 is rotatably movable between two positions I, II, namely: a closed position I, in which the drain opening 21 is closed by the closure element 10, and a release position II, in which the drain opening 21 is opened by the closure element 10.

[0046] The invention provides that the closure element 10 has an angled stop A1 on a first surface O1, which is aligned with the outlet 101 in the closed position I of the closure element 10, in order to secure the closure element 10 in the closed position I against tipping over beyond the closed position II when the closure element 10 is transferred from the release position II to the closed position I, wherein the stop A1 is made of the same material, monolithic and / or in one piece with the closure element 10.

[0047] As it is in the Figure 1As is illustrated, the stop A1 can prevent further movement of the closure element 10 beyond the closed position I by resting on an edge of the drain housing 20. The rotatable movement of the closure element 10 can be carried out between 0° and 90°. In the closed position I, the closure element 10 rests essentially horizontally on the drain opening 21 of the drain housing 20 and closes the drain opening 21. In the release position II, the closure element 10 is aligned essentially vertically and thereby releases the drain opening 21 of the drain housing 20, which opens into the drain 101.

[0048] The invention provides that the stop A1 for securing the closure element 10 against tipping over beyond the closed position I is formed directly on the closure element 10. The stop A1 within the meaning of the invention is formed directly with the closure element 10 in a uniform, monolithic and / or one-piece manner, preferably in one piece and cast using one and the same mold. This ensures that the closure element 10 is securely stopped in the closed position I. Furthermore, this eliminates the need for a separate fastening step for the stop A1 to the drain body 20 or to the closure element 10. A particularly advantageous feature is that the stop A1 does not have to be laboriously installed from the outside on a pre-installed drain body 20.The stop A1 is designed to be particularly stable and break-proof, as it is manufactured in one piece and preferably in one casting with the locking element 10.

[0049] Within the scope of the invention, the closure element 10 and the stop A1 can be formed from a metal or a metal alloy, in particular stainless steel. Alternatively, it is conceivable that the closure element 10 and the stop A1 can be formed from a metal or a metal alloy, in particular light metal, and have a stainless steel coating.

[0050] As it is from the Figures 1 and 2As can be seen, the stop A1 is designed as an angle. In the closed position I of the closure element 10, a first leg of the stop A1 can point axially downward from the first surface O1 of the closure element 10 in the direction of the outlet 101, and a second leg of the stop A1 can extend radially outward relative to the closure element 10.

[0051] As it is from the Figure 2 As can be seen, at least one reinforcing rib 14 can be provided between the stop A1 and the closure element 10 at the base of the stop A1. Preferably, however, two reinforcing ribs 14 are provided on both sides of the base of the stop A1 to increase the break-off resistance of the stop A1. The reinforcing ribs 14 can extend along the entire width of the stop A1 at the base of the stop A1. Furthermore, the reinforcing ribs 14 can have a concave shape.

[0052] As the Figures 1 and 2 As further shown, the closure element 10 can have an actuating lever 11 on a second surface O2, which in the closed position I of the closure element 10 faces away from the outlet 101, in order to be able to transfer the closure element 10 from the outside with respect to the outlet 101 with the aid of a preferably fork-shaped tool 102 between the closed position I and the release position II. It is also conceivable that the actuating lever 11 can be made of the same material, monolithic and / or in one piece with the closure element 10 and the stop A1.

[0053] As it is from the Figures 1 and 2As can be seen, the actuating lever 11 can be arranged at an acute angle α to the second surface O2 of the closure element 10. The angle α can be substantially 45° in order to enable a rotatable actuation of the closure element 10 at an angle between 0° and 90°.

[0054] For stability reasons when the tool 102 is applied to the actuating lever 11, the actuating lever 11 can have a higher, in particular at least twice higher, preferably two to four times higher, material thickness than the closure element 10.

[0055] As the Figure 2As illustrated in detail, the actuating lever 11 can be supported on the closure element 10 essentially via a rotation axis D of the closure element 10. In this way, the tool 102 can be rotated essentially about the same rotation axis D when actuating the closure element 10 in order to facilitate the actuation of the closure element 10.

[0056] As the Figure 2As also shown, at least one support rib 12 can be provided between the actuating lever 11 and the closure element 10, in particular at or at an acute angle α between the actuating lever 11 and the closure element 10. It is conceivable that the at least one support rib 12 can be made of the same material, monolithic and / or in one piece with the closure element 10 and the actuating lever 11. The at least one support rib 12 can extend along the entire width of the actuating lever 11. Furthermore, the at least one support rib 12 can have a concave shape.

[0057] As the Figure 2As further shown, at least one stabilizing rib 13 can be provided between the actuating lever 11 and the closure element 10, in particular at an obtuse angle β between the actuating lever 11 and the closure element 10. The at least one stabilizing rib 13 can advantageously be made of the same material, monolithic and / or in one piece with the closure element 10 and the actuating lever 11. The at least one stabilizing rib 13 can preferably be arranged along the entire width of the actuating lever 11. Furthermore, the stabilizing rib 13 can have a concave shape.

[0058] In addition, the Figure 2that the closure element 10 has two pivot bearings L1, L2 on the first surface O1 in order to rotatably support the closure element 10 on the drain housing 20. Advantageously, the pivot bearings L1, L2 can be made of the same material, monolithic and / or in one piece with the closure element 10 and the stop A1. The pivot bearings L1, L2 can, for example, be designed in the form of bushings with receiving openings. The pivot bearings L1, L2 can accommodate special bearing bushes B1, B2, for example made of a plastic, e.g. of a polymer, for the axis of rotation D itself. The axis of rotation D can, in turn, be supported on the drain housing 20 in the receptacles D1, D2 provided for the axis of rotation D.

[0059] As previously mentioned, the closure element 10 can be equipped with two bearing bushings B1, B2, particularly in the form of collar bushings, on the pivot bearings L1, L2. The bearing bushings B1, B2 can preferably be designed for a sliding bearing of a rotational axis D. It is conceivable that the bearing bushings B1, B2 can be made of a plastic, particularly an inert and chemically resistant polymer with a low coefficient of friction. Drain safety devices 100 are often exposed to harsh weather conditions for years and come into contact with wastewater and various chemical substances. Under these conditions, metals tend to rust sooner or later. The pivot bearings bond to the rotational axes. As a result, the closure element 10 can jam and become unusable, which can disable the drain safety device 100 and pose a significant safety risk.Plastics, on the other hand, are not, or essentially not, affected by these effects. In this way, simple and cost-effective bearing bushes B1, B2 made of a plastic can prevent the drain safety device 100 from being impeded in its function, and ensure that the closure element 10 can be moved safely between the closed position I and the released position II, even after long periods of non-operation.

[0060] The bearing bushings B1, B2 can be provided as separate components. It is also conceivable that the bearing bushings B1, B2 can be applied to the pivot bearings L1, L2 in the form of a coating, or that the bearing bushings B1, B2 can be injection-molded onto the pivot bearings L1, L2.

[0061] Furthermore, it may be advantageous if the closure element 10 can have two bearing support ribs 15 on the pivot bearings L1, L2 to protect the pivot bearings L1, L2 from breaking off.

[0062] As already mentioned above, the closure element 10 can be rotatably supported on the drain housing 20 by means of a rotation axis D. The drain housing 20 can have two corresponding receptacles D1, D2 for the rotation axis D.

[0063] It is conceivable that the rotation axis D can be formed from a metal or a metal alloy, in particular stainless steel. Alternatively, it is conceivable that the rotation axis D can be formed from a metal or a metal alloy, in particular light metal, and can have a stainless steel coating.

[0064] As it is in the Figure 1 As can be seen, a sleeve-shaped seal 40 can be provided on the drain housing 20, which can enclose the drain opening 21 circumferentially. The closure element 10 can rest sealingly against the seal 40 in the closed position.

[0065] As it is in the Figures 1 and 3As can be seen, the drain housing 20 has a corresponding groove 24 for receiving the seal 40.

[0066] The seal 40 is unique in the Figure 5 shown. In the Figure 5 It can be seen that complementary openings C1, C2 for the receptacles D1, D2 can be provided on the seal 40.

[0067] Furthermore, the Figure 1 and in the Figure 5It can be seen that the seal 40 can have a telescopic and / or conical inner wall 41, which can taper in the direction from bottom to top with respect to the outlet 101. In this way, when the closure element 10 is transferred from the release position II to the closed position I, it is possible for the seal 40 to be compressed more on the side of the closure element 10 where the actuating lever 11 is arranged and where the actuating force can be applied, and that on the side of the closure element 10 that is free of the actuating lever 11, a simple adjustment of the closure element 10 into the sealing closed position I can be made possible.

[0068] Furthermore, it is in the Figure 2shown that for fastening to the drain housing 20, in particular axially viewed below the receptacles D1, D2 for the rotation axis D, two, preferably cup-shaped, stop bodies A2, A3 can be provided in order to secure the closure element 10 in the release position II against tipping over. For the sake of simplicity, the stop bodies A2, A3 can be fastened to the drain housing 20 in a form-fitting and / or force-fitting manner, for example by means of screws S. The drain housing 20 is designed with two corresponding bores a2, a3 for the stop bodies A2, A3, as shown in the Figure 3 The holes a2, a3 are located essentially below the mounts D1, D2 for the rotation axis D.

[0069] In addition, the Figure 1 that a mounting ring 30 can be provided for supporting the drain housing 20 on the drain 101, wherein the drain housing 20 can be fastened to the mounting ring 30 in a form-fitting and / or force-fitting manner.

[0070] A system 110 with a drain safety device 100, which can be designed as described above, and a preferably fork-shaped tool 102 for actuating the closure element 10 between the closed position I and the release position II also represents an aspect of the invention.

[0071] The above explanation of the embodiments describes the present invention exclusively by way of examples. Of course, individual features of the embodiments can be freely combined with one another, provided they are technically feasible, without departing from the scope of the present invention. List of reference symbols

[0072] 110Drain safety system 100Drain safety device 101Drain 102Tool 10Locking element 11Operating lever 12Support rib 13Stabilizing rib 14Reinforcing rib 15Bearing support rib 20Drain housing 21Drain opening 24Groove 30Mounting ring 40Seal IClosing position IIRelease position A1Stop A2Stop body A3Stop body a2Bore a3Bore B1Bearing bush B2Bearing bush C1Opening C2Opening DRotation axis D1Mounting D2Mounting L1 Pivot bearing L2 Pivot bearing O1first surface O2second surface SScrew αangle βangle

Claims

1. Drainage safety device (100) for at least one drain (101), in particular a floor inlet, a yard drain or a street drain, comprising: a closure element (10) for closing and opening the drain (101) and a drain housing (20) for rotatably supporting the closure element (10) on the drain (101), wherein the drain housing (20) has a complementary drain opening (21) for the drain (101), and wherein the closure element (10) is rotatably movable between two positions (I, II): - a closed position (I), in which the drain opening (21) is closed by the closure element (10), and - a release position (II) in which the drain opening (21) is opened by the closure element (10), characterized in that the closure element (10) has a stop (A1) on a first surface (O1), which is aligned with the drain (101) in the closed position (I) of the closure element (10), in order to secure the closure element (10) in the closed position (I) against overturning beyond the closed position (II) when the closure element (10) is transferred from the release position (II) to the closed position (I), wherein the stop (A1) is made of a single material, monolithic and / or integral with the closure element (10), and wherein the stop (A1) is designed as an angle.

2. Drainage safety device (100) according to claim 1, characterized in that the closure element (10) and the stop (A1) are made of a metal or a metal alloy, in particular stainless steel, or that the closure element (10) and the stop (A1) are made of a metal or a metal alloy, in particular light metal, and have a stainless steel coating.

3. Drainage safety device (100) according to claim 1 or 2, characterized in that the closure element (10) and the stop (A1) are produced in a casting, preferably as a single casting, in particular in a common mold, preferably by a casting process, and / or that, in the closed position (I) of the closure element (10), a first leg of the stop (A1) projects axially from the first surface (O1) of the closure element (10) in the direction of the drain (101) and a second leg of the stop (A1) extends radially outwards with respect to the closure element (10), and / or that at least one reinforcing rib (14) is provided between the stop (A1) and the closure element (10) at the base of the stop (A1), wherein, in particular, a reinforcing rib (14) is provided on both sides of the base of the stop (A1) for the closure element (10), and / or that the at least one reinforcing rib (14) at the base of the stop (A1) extends along the entire width of the stop (A1), and / or the at least one reinforcing rib (14) has a concave shape.

4. Drainage safety device (100) according to one of the preceding claims, characterized in that the closure element (10) has an actuating lever (11) on a second surface (O2) which faces away from the drain (101) in the closed position (I) of the closure element (10), in order to be able to transfer the closure element (10) from the outside with respect to the drain (101) with the aid of a preferably fork-shaped tool (102) between the closed position (I) and the release position (II), wherein, in particular, the actuating lever (11) is made of a single material, monolithic and / or in one piece with the closure element (10) and the stop (A1), and / or that the actuating lever (11) is inclined at an acute angle (α) to the second surface (O2) of the closure element (10), whereby the angle (α) in particular is essentially 45°, and / or that the actuating lever (11) has a higher, in particular at least twice as high, preferably twice to four times higher, material thickness than the closure element (10), and / or that the actuating lever (11) is supported on the closure element (10) substantially above an axis of rotation (D) of the closure element (10).

5. Drainage safety device (100) according to the preceding claim, characterized in that at least one support rib (12) is provided between the actuating lever (11) and the closure element (10), in particular at an acute angle (α) between the actuating lever (11) and the closure element (10), wherein, in particular, the at least one support rib (12) is of a uniform material, monolithic and / or in one piece with the closure element (10) and the actuating lever (11), and / or that the at least one support rib (12) is arranged along the entire width of the actuating lever (11), and / or the at least one support rib (12) has a concave shape.

6. Drainage safety device (100) according to any of the preceding claims 4 or 5, characterized in that at least one stabilizing rib (13) is provided between the actuating lever (11) and the closure element (10), in particular at an obtuse angle (β) between the actuating lever (11) and the closure element (10), wherein, in particular, the at least one stabilizing rib (13) is of a uniform material, monolithic and / or in one piece with the closure element (10) and the actuating lever (11), and / or that the at least one stabilizing rib (13) is arranged along the entire width of the actuating lever (11), and / or the at least one stabilizing rib (13) has a concave shape.

7. Drainage safety device (100) according to one of the preceding claims, characterized in that the closure element (10) has two pivot bearings (L1, L2) on the first surface (O1) in order to rotatably support the closure element (10) on the drain housing (20), wherein, in particular, the pivot bearing (L1, L2) is made of a single material, monolithic and / or in one piece with the closure element (10) and the stop (A1), and / or in that the closure element (10) has two bearing bushes (B1, B2), in particular in the form of collar bushes, on the pivot bearings (L1, L2), wherein in particular the bearing bushes (B1, B2) are designed for a plain bearing of an axis of rotation (D).

8. Drainage safety device (100) according to the preceding claim, characterized in that the bearing bushes (B1, B2) are made of a plastic, in particular of an inert and chemically resistant polymer with a low coefficient of friction, and / or that the bearing bushes (B1, B2) are provided as separate components, or that the bearing bushes (B1, B2) are applied to the pivot bearings (L1, L2) in the form of a coating, or that the bearing bushes (B1, B2) are molded onto the pivot bearings (L1, L2), and / or that the closure element (10) has two bearing support ribs (15) on the pivot bearings (L1, L2).

9. Drainage safety device (100) according to one of the preceding claims, characterized in that the closure element (10) is rotatably supported on the drain housing (20) by means of an axis of rotation (D), wherein in particular the axis of rotation (D) is made of a metal or a metal alloy, in particular stainless steel, or wherein the axis of rotation (D) is made of a metal or a metal alloy, in particular light metal, and has a stainless steel coating.

10. Drainage safety device (100) according to the preceding claim, characterized in that the drain housing (20) has two receptacles (D1, D2) for the axis of rotation (D), and / or that a sleeve-shaped seal (40) is provided on the drain housing (20), which surrounds the drain opening (21) on the periphery, wherein complementary openings (C1, C2) for the receptacles (D1, D2) are provided in particular on the seal (40).

11. Drainage safety device (100) according to the preceding claim, characterized in that the seal (40) has a telescopic and / or conical inner wall (41) which tapers in the direction from bottom to top with respect to the drain (101).

12. Drainage safety device (100) according to any of the preceding claims 10 or 11, characterized in that two, preferably cup-shaped, stop bodies (A2, A3) are provided on the drain housing (20), in particular axially below the receptacles (D1, D2) for the axis of rotation (D), in order to secure the closure element (10) against overturning in the release position (II).

13. Drainage safety device (100) according to the preceding claim, characterized in that the stop bodies (A2, A3) are positively and / or non-positively fastened, in particular by screws (S), to the drain housing (20).

14. Drainage safety device (100) according to one of the preceding claims, characterized in that an installation ring (30) is provided to support the drain housing (20) on the drain (101), wherein, in particular, the drain housing (20) is positively and / or non-positively attached to the installation ring (30).

15. System (110) with a drainage safety device (100) according to one of the preceding claims and a, preferably fork-shaped, tool (102) for actuating the closure element (10) between the closed position (I) and the release position (II).

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