Locking unit and closure system for shaft constructions as well as method for remediation

Abstract

A locking unit (500) for a shaft structure that can be closed with a manhole cover, wherein the locking unit (500) can assume a locked position and a neutral position, and wherein the locking unit (500) is designed such that, in the locked position when installed, it prevents the complete closing of a manhole cover, while in the neutral position it allows the complete closing of the manhole cover, comprises: a) a base body with which the locking unit (500) can be attached in an area of ​​the opening of the shaft structure, in particular directly below the manhole cover, preferably on an inner wall of the shaft structure;b) a locking element (520) movably mounted in or on the base body by means of a guide (510), which can be moved between a locking position and a neutral position; c) a movably mounted detent element (550) which can be moved between a release position and a locking position, and optionally a neutral position; d) wherein the detent element (550) is designed such that it: (i) in the release position allows movement of the locking element (520); (ii) in the locking position interacts with the locking element (520) in such a way that the locking element (520) is blocked.

Description

Technisches Gebiet

[0001] The invention relates to a blocking unit according to claim 1 for a shaft structure that can be closed with a manhole cover, as well as to a device set of a closure system comprising such a blocking unit. Furthermore, the invention relates to a shaft structure, in particular a sewage shaft, that can be closed with a manhole cover and has at least one partial volume that can be separated from the remaining shaft volume and closed with a closure system. The present invention also relates to a method according to claim 15 for rehabilitating a shaft structure. Stand der Technik

[0002] Shaft structures are essential components of public and private infrastructure facilities. Shaft structures make it possible to lay underground infrastructure lines, such as sewage, water, power, or telecommunications lines, over long distances, connect them into network structures, maintain them, and, if necessary, replace them.

[0003] Shaft structures typically have a cavity located underground or embedded in another structure, which is accessible through an opening and can be closed with a shaft closure or manhole cover on the surface. Infrastructure lines of the respective infrastructure facilities, for example, pipelines, I <anäle, Rinnen und / oder I<abel, münden dann in den Hohlraum des Schachtbauwerks und / oder werden durch diesen hindurchgeführt. Damit ist es möglich, Infrastrukturleitungen im Schachtbauwerk zusammenzuführen, aufzutrennen, Richtungsänderungen vorzunehmen oder Höhenüberbrückungen zu realisieren. Auch können Infrastrukturleitungen im oder durch das Schachtbauwerk hindurch überprüft, unterhalten und / oder gereinigt werden.

[0004] However, certain infrastructure lines are best not routed together through the same shaft structure, and this may even be prohibited by law. For example, the simultaneous use of a shaft structure for power lines and water pipes would generally be problematic, as damage to the lines could lead to short circuits caused by the water present in the shaft structure.

[0005] The situation is similar with wastewater systems: To prevent rainwater from entering the sewage treatment plants in large quantities during rainfall, which would make water purification more difficult or even completely impossible, the Swiss Water Protection Act, for example, now requires completely separate I <analnetze für verschmutztes Abwasser (= Schmutzwasser) und Niederschlagswasser (insbesondere Regenwasser) vor (Niederschlagswasser wird auch als Meteorwasser bezeichnet und ist Wasser aus natürlichem Niederschlag, das im Gegensatz zum verschmutztem Abwasser nicht durch Gebrauch verunreinigt wurde). Diese doppelte Kanalisation wird auch "Trennsystem" genannt.

[0006] This has the disadvantage that wastewater systems always require two separate shaft structures, one for the rainwater I <analnetz und eines für das Schmutzwasser-Kanalnetz. Gegenüber den älteren "Mischsystemen", bei welchen Niederschlagswasser-Leitungen und die Schmutzwasser-Leitungen noch durch gemeinsame Schachtbauwerke geführt wurden, bringt dies insbesondere einen grösseren baulichen Aufwand, höhere Kosten und einen grösseren Platzbedarf im Untergrund als auch an der Oberfläche mit sich.

[0007] Older sewer networks based on combined systems are typically renovated in such a way that the existing shaft structure is used only for the wastewater sewer network, while an additional shaft structure is built next to it for the rainwater. <analnetz erstellt wird - oder umgekehrt. Damit steigt der Platzbedarf bei einer Sanierung von älteren Abwasserkanalnetzen im Bereich der Schachtbauwerke aber stark an. Dies ist insbesondere an Orten mit begrenztem Platz im Untergrund, z.B. in städtischen Bereichen mit einer hohen Dichte an unterirdisch geführten Infrastruktureinrichtungen oder im Bereich von Gleisanlagen von Strassenbahnen und Zügen, welche hinsichtlich Bodenbewegungen heikel sind, problematisch.

[0008] In this context, EP 3 696 330 (Renggli) describes a device set of a closure system for a shaft structure that can be closed with a manhole cover. Such a device set can be used to create shaft structures in which two or more infrastructure lines running through a shaft structure can be separated from each other in a fluid-tight manner using a closure. The closure system includes, among other things, a locking unit for the manhole cover, wherein the locking unit can assume a locking position and a neutral position. The locking unit is designed such that, when installed, it prevents a manhole cover from being completely closed in the locking position, while allowing the manhole cover to be completely closed in the neutral position.The locking unit can be designed such that a locking element of the locking unit is supported and / or hooked onto a guide of the locking element in the locked position, thus blocking it. This prevents the locking element from being moved from the locked position to the neutral position due to the unintentional application of large forces, such as the impact of a person.

[0009] However, it has been shown that with the system described in EP 3 696 330, in certain cases there is a risk that the locking element of the locking unit can be pushed from the locked position to the neutral position due to improper action by heavy machinery, for example, when the manhole cover is in place. This creates the risk that the manhole cover can be improperly closed, even though the closure inside the shaft structure is not closed. Other locking units according to the prior art are also disclosed in the following documents: EP1882779A1, WO2017 / 046696A1, WO2017 / 203148A1, WO2020 / 121181A2 and DE10259610A1.

[0010] There is therefore a need for improved solutions that have fewer or no such disadvantages. Darstellung der Erfindung

[0011] The object of the invention is therefore to provide improved and safer solutions for the renovation and / or construction of shaft structures for infrastructure facilities. In particular, advantageous devices and / or methods are to be provided with which shaft structures for infrastructure facilities can be constructed or renovated in the safest, most space-saving, most cost-effective and / or simple way possible. This is particularly true in connection with infrastructure facilities in which several different infrastructure lines have to be routed separately from one another. In particular, corresponding devices and methods for wastewater systems with separate I <analnetzen für Schmutzwasser und Niederschlagswasser bereitgestellt werden.

[0012] The solution to these tasks is defined by the independent claims.

[0013] A first aspect of the present invention therefore relates to a locking unit for a shaft structure that can be closed with a manhole cover, wherein the locking unit can assume a locking position and a neutral position, and wherein the locking unit is designed such that, in the mounted state, it prevents a complete closing of a manhole cover in the locking position, while it allows the complete closing of the manhole cover in the neutral position, wherein the locking unit comprises: a) a base body with which the locking unit can be attached in a region of the opening of the shaft structure, in particular directly beneath the shaft cover, preferably on an inner wall of the shaft structure; b) a locking element which is movably mounted by a guide in or on the base body and which can be moved between a locking position and a neutral position, c) a movably mounted locking element which can be moved between a release position and a locking position, and optionally a neutral position, d) wherein the locking element is designed and arranged in such a way that it: (i) permits movement of the locking element in the release position; (ii) interacts with the locking element in the locking position in such a way that the

[0014] Locking element is blocked, wherein the guide is a linear guide and the locking element and locking element are mounted in the same linear guide.

[0015] Such a blocking unit is particularly suitable for reliably preventing a shaft structure from being closed with its associated manhole cover if the shaft structure or its internal components, such as a closure, are not in the required configuration. This can be achieved in particular by coupling the blocking unit to the internal components of the shaft structure, such as a closure that provides a fluid-tight separation between various infrastructure lines running through the shaft structure.

[0016] Because the locking unit also features a locking element in addition to the locking element, which locks the locking element in the locked position, the locking element can be further protected against unauthorized movement. Accordingly, to unlock the locking element, the locking element must also be released or moved into the release position. This significantly reduces the risk of unauthorized movement of the locking element from the locked position to the neutral position.

[0017] In the locked position, the locking element interacts with the locking element to block the locking element and prevent it from moving from the locked position and / or into the neutral position. However, when the locking element is in the release position, it releases the locking element, allowing it to be moved into the neutral position.

[0018] According to an advantageous embodiment, the guide of the locking unit is a linear guide, in particular a cuboidal groove and / or a cuboidal cavity. This allows the locking element to be moved out of the guide, for example, along a straight line, which has proven advantageous and reliable for applications in shaft structures.

[0019] In particular, a linear guide allows for the realization of a particularly compact locking unit. If, for example, the guide is installed directly below the manhole cover in the shaft structure, allowing the locking element to move toward the shaft opening, even a relatively small translation of the locking element is sufficient to prevent the shaft structure from closing with the manhole cover.

[0020] The guide is preferably designed as a U-shaped profile strip, with the locking element guided in the concave area of ​​the U-shaped profile. Further preferably, the U-shaped profile strip is closed along its longitudinal axis with a cover. This creates a guide channel in the form of a cuboidal cavity.

[0021] In principle, however, differently designed locking units are also possible. For example, the locking unit can comprise a rotatably mounted locking element, e.g., a bolt. The bolt can be mounted and designed such that it can be moved from a horizontal orientation (neutral position) to a vertical orientation (locking position) in the area of ​​the shaft opening. An asymmetrically mounted disc, which can be pivoted into the shaft opening, is also possible as a locking element.

[0022] The locking unit is preferably designed such that the guide runs vertically when the locking unit is mounted. In combination with a linear guide, the force of gravity can be used to move the locking element and / or the locking element in one of the directions within the guide or to assist the movement. This allows certain positions, such as the locking position of the locking element, to be reached automatically. However, it is also possible, for example, to align the locking unit so that the guide runs diagonally to the vertical direction or horizontally when mounted.

[0023] According to a particularly preferred embodiment, the locking element and the arresting element are mounted in the same guide, in particular a linear guide. This significantly simplifies the design. Furthermore, this measure has been shown to achieve a high level of reliability and robustness of the locking unit.

[0024] According to a particularly preferred embodiment, the locking element and the locking element are in direct contact in the guide.

[0025] In particular, the locking unit is designed such that when the locking element is in the locking position, the locking element is automatically moved into the locking position, preferably by the action of the gravitational force and / or a spring force.

[0026] The locking unit is advantageously designed such that the center of gravity of the locking element in the release position is located vertically at a height that is higher than the height of the locking element in the locking position. This allows the locking element to be moved from the release position to the locking position purely by gravitational force, for example, particularly as soon as the locking element has reached the locking position. This ensures that the locking element is always moved to the locking position without the need for additional measures.

[0027] In a further advantageous embodiment, the locking unit is designed such that the locking element can additionally assume a neutral position which differs from the release position and the locking position.

[0028] Advantageously, the locking unit is designed such that a center of mass of the locking element in the neutral position is present in the vertical direction at a height which is above the height of the locking element in the locking position and below a height of the locking element in the release position.

[0029] Advantageously, the locking element closes the guide in the neutral position together with the locking element when the latter is in the neutral position. This prevents dirt from entering the guide and allows for a compact design of the locking element. However, other designs are also possible in which the locking element does not close the guide.

[0030] Furthermore, it is preferred if the locking unit is designed such that the locking element rests on the locking element in the neutral position and / or in the release position. This prevents the locking element from falling downward out of the guide when the guide runs vertically. Furthermore, this measure ensures that the locking element is automatically moved along with the locking element when it moves.

[0031] Particularly preferably, the locking unit is designed such that the locking element is supported in the locked position, in particular on a base. This additionally prevents the locking element from being moved from the locked position to the neutral position due to the unintentional application of large forces, such as the impact of people or vehicles driving over it. However, other support measures are also possible.

[0032] Particularly preferably, the locking element is a strip-shaped element having an end portion protruding perpendicularly to a longitudinal axis of the strip-shaped element at a first end and / or a projection protruding perpendicularly to the longitudinal axis of the strip-shaped element at the opposite end. The end portion is the area that can be moved out of the guide to achieve the locking effect.

[0033] In particular, the locking unit has a base, in particular a base arranged in the guide.

[0034] Preferably, the base is designed such that the locking element rests on it in the neutral position and, more preferably, is completely accommodated in the guide. If the guide runs vertically, this prevents the locking element from slipping out of the guide at the bottom.

[0035] Particularly preferably, the freedom of movement of the locking element in all directions is limited by a base mounted in the guide. The base is preferably designed as a stop for the end section and / or the projection of the locking element; in particular, the base is arranged between the end section and the projection.

[0036] According to an advantageous embodiment, the locking unit is designed such that the locking element is supported on the base in the locking position.

[0037] Even more preferably, the locking element has a recess between the end section and the projection, in particular a rectangular recess, which has a length that essentially corresponds to a length of the base in the longitudinal direction of the guide and / or which has a width that essentially corresponds to a width of the base in a direction perpendicular to the longitudinal direction of the guide.

[0038] In particular, the recess is dimensioned such that the locking element, when positioned with the recess in the area of ​​the base, can at least partially encompass the base in the area of ​​the recess. This allows the locking element to be supported on the base in the locked position.

[0039] In particular, the locking element is a strip-shaped element which has a first angled end region at its first end and a second angled end region at its opposite end, wherein the first and the second angled end region preferably extend perpendicular to a longitudinal axis of the locking element.

[0040] In particular, the locking element encompasses the blocking element in the release position and / or the neutral position with the two angled end areas.

[0041] A length of the locking element in the longitudinal direction advantageously corresponds approximately to a length of the free space between the angled end regions of the locking element or the length of the locking element is smaller.

[0042] In particular, the locking unit is designed in such a way that the locking element performs a linear movement and / or an I <ippbewegung, ausführt. Besonders bevorzugt eine lineare Bewegung und eine I<ippbewegung.

[0043] Advantageously, the locking unit is designed such that the locking element has an I <ippbewegung ausführen kann, wenn das Sperrelement maximal aus der Führung herausragt und sich das Arretierelement in der Freigabestellung befindet.

[0044] Furthermore, it is preferred if the locking unit is designed such that the locking element, when it is in the neutral position, is moved into the release position by a movement of the locking element, in particular a linear movement.

[0045] Particularly preferably, the locking element, preferably with the first angled end region, rests on the blocking element in the neutral position, in particular on the end section of the blocking element. This allows the locking element to be moved along with the movement of the blocking element from the neutral position to the blocking position.

[0046] Further preferably, the locking element, in particular the end section of the locking element, has a beveled support surface for the locking element, in particular for the first angled end region of the locking element. "Beveled" means that the surface is at an angle of 5-95°, in particular 5-50°, to the horizontal. Due to the bevel, the weight of the locking element generates a force component acting in the horizontal direction, which causes the locking element, when it protrudes far enough from the guide, to perform a tilting movement and thus be moved into the locked position. In this process, the locking element, in particular, is released, so that it is moved downward into the locked position by the force of gravity.

[0047] Particularly preferably, the locking element projects out of the guide in the locking position and is supported on the base body and / or the base, wherein the longitudinal axis of the locking element runs obliquely to the longitudinal axis of the guide and / or obliquely to the longitudinal axis of the locking element.

[0048] It is preferred if, in the locking position, the first angled end region of the locking element blocks the locking element in the locking position, so that an I <ippbewegung des Sperrelements verhindert wird. Hierfür ist der erste abgewinkelte Endbereich des Arretierelements in der Arretierstellung bevorzugt in die Führung abgesenkt. Indem die Kippbewegung des Sperrelements blockiert wird, kann sich das Sperrelement nicht aus der schrägen Position bzw. der Sperrstellung bewegen, was wiederum eine Bewegung entlang der Längsachse der Führung verhindert.

[0049] In particular, the first angled end portion of the locking element protrudes from the guide in the release position and / or the first angled end portion of the locking element is lowered into the guide in the locking position.

[0050] It is further preferred if the locking element has an actuating element, in particular a handle, for manually moving the locking element from the locking position to the release position. This allows the locking element to be moved into the release position by a defined movement.

[0051] Furthermore, it is preferred that the locking unit has an interface for connecting a mechanical I <opplungselements, insbesondere eines Seils und / oder eines I<oppelgetriebes, für das Sperrelement verfügt. Damit lässt sich das Sperrelement z.B. durch einen Vorgang im Innern des Schachtbauwerks, beispielsweise dem Öffnen eines Verschlusses, automatisch ansteuern bzw. in die Sperrstellung bewegen.

[0052] The locking element is therefore preferably provided with a mechanical I <opplungselement, insbesondere einem Seil und / oder einem Koppelgetriebe, verbunden.

[0053] A further aspect of the present invention relates to a device set of a closure system for a shaft structure that can be closed with a manhole cover, the device set comprising: a) a closure for opening and closing a partial volume that can be separated from the rest of the shaft volume; b) a socket that can be installed in the shaft structure and is designed to receive the closure; c) a locking unit that has a locking position and a release position with which the closure can be locked or released in the socket, so that it can be mechanically fixed in the socket in the locked state; d) a locking unit as defined above; wherein the locking unit can be or is coupled to the locking unit in such a way that when the lock is released, the locking unit is moved into the locking position and that a movement of the locking unit into the neutral position is only possible when the lock is locked.

[0054] The locking element is preferably provided with a mechanical I <opplungselement, insbesondere einem Seil und / oder einem Koppelgetriebe, mit dem Verschluss gekoppelt.

[0055] Due to the locking element of the locking unit, the locking element can only be moved from the locked position if the locking element is moved into the release position or is in this position.

[0056] Such a device set can be used to create shaft structures in which two or more infrastructure lines running through a shaft structure can be separated from each other in a fluid-tight manner within the same shaft structure. For this purpose, a sub-volume can be created in an existing shaft structure or in a newly constructed shaft structure, which can then be opened or closed with the closure according to the invention.

[0057] If the closure is locked with the locking unit, the detachable volume and the remaining volume are completely separated from each other. However, if the locking unit is in the release position and the closure is opened, the detachable volume can be accessed from the remaining volume. This allows access to the individual infrastructure lines through a single shaft structure with a single shaft cover if necessary, e.g., for maintenance work. During normal operation, the infrastructure lines are routed completely separately from each other through the same shaft structure.

[0058] The locking unit for the manhole cover and its coupling to the closing unit ensures that the shaft structure can only be closed when the lock is correctly and completely engaged. This ensures that the detachable volume and the remaining shaft volume are securely separated from each other when the manhole cover is closed. Incorrect manipulation is thus virtually eliminated. In other words, a single shaft structure can be used to create a system that enables the separation of different infrastructure lines just as reliable and secure as a conventional separation system, in which access to the infrastructure lines is provided via separate shaft structures.

[0059] The inventive equipment kit thus makes it possible to renovate existing shaft systems while maintaining the same space requirements, allowing them to be used for separation systems. Furthermore, new shaft systems can be designed directly for separation systems using the inventive equipment kit. In both cases, this results in significant cost and space savings, both underground and on the surface, where only a single manhole cover is required.

[0060] Furthermore, construction and renovation work can be significantly simplified using the equipment set according to the invention. In particular, significantly smaller and easier-to-operate construction sites are possible for construction and renovation work compared to conventional separation systems. For new construction, for example, significantly smaller trench profiles are required, while for renovation work or the conversion of an older mixed system to a separation system, the ground does not need to be opened at all, as the renovation can be carried out directly in the existing shaft.

[0061] The device set according to the invention is particularly interesting for the renovation or construction of shaft structures for wastewater infrastructure lines. Currently, many older wastewater infrastructures still exist in which stormwater pipes and wastewater pipes are routed through shared shaft structures, so-called combination shafts.

[0062] Since in such shaft structures, both the rainwater and wastewater pipes are usually routed in upwardly open channels, there is a risk that if one or the other becomes blocked, rainwater will enter the wastewater pipe, or vice versa. By spatially separating one of the two channels in the shaft structure and closing it with a closure from the device set according to the invention, a relatively simple and cost-effective renovation of the shaft structure can be achieved that meets the new requirements.

[0063] The closure is advantageously designed as a lid, in particular as a lid that can be completely removed from the socket and / or as a lid that can be completely detached from the socket. For example, it is a substantially rectangular, square, circular, or elliptical lid. The lid is, in particular, a flat part whose height in the direction of the passage to be closed is smaller than a length and a width of the lid or smaller than a diameter of the lid. However, other shapes are also possible in principle.

[0064] A cover that can be completely removed from the casing and / or a cover that can be completely detached from the casing has the particular advantage that the cover or a hinge of the cover does not obstruct access to the infrastructure line in the enclosed sub-volume, and the cover can be removed from the casing in various directions. The latter is particularly advantageous in confined shaft structures.

[0065] If desired, the lid can also be attached to the socket in a movable manner, e.g. via an opening mechanism such as a hinge.

[0066] In this context, a "socket" refers in particular to a support element for the closure, which is designed for installation in the shaft structure, in particular in a wall of the partial volume to be separated. The socket defines, in particular, a passage between the partial volume to be separated and the remaining shaft volume. The passage can be rectangular, square, circular, or elliptical, for example.

[0067] In particular, the socket and closure are matched to each other in such a way that the closure can seal a passage defined by the socket in a liquid-tight manner.

[0068] The socket is preferably constructed as a single piece. This simplifies installation and assembly. However, the socket can also consist of several components, which are then joined together during installation, for example.

[0069] Preferably, the socket is designed such that the closure cannot be passed through the socket. This is particularly true regardless of the closure's orientation relative to the socket. This prevents the closure from falling into the partial volume to be separated during maintenance work and, in the worst case, from entering the infrastructure line running therein.

[0070] According to an advantageous embodiment, the mount is designed as a frame. The frame preferably surrounds the closure, which is preferably in the form of a lid, in the inserted state in the region of a lateral surface of the closure and / or in an I <antenbereich des Verschlusses wenigstens teilweise, insbesondere vollständig.

[0071] In particular, the frame is designed in the intended contact area with the lid to be substantially complementary to an edge region of the lid and / or is molded onto an edge region of the lid. Particularly preferably, the mount has a shoulder onto which the edge region of the closure can be fully placed.

[0072] Particularly preferably, the frame has a rectangular, square, circular or elliptical shape in the intended contact area with the lid.

[0073] The frames described above form a stable and defined support for the closure and also define a passage to the partial volume to be separated.

[0074] The locking unit preferably comprises a movable, in particular pivotable, bolt and a locking device. The bolt is designed such that it can engage with the locking device and, in the locked position, fixes the closure in the socket.

[0075] According to a particularly advantageous embodiment, the movable latch is arranged on the closure. It is particularly preferably a pivotable latch, in particular with a handle for manual actuation. In other words, the latch is preferably pivotably mounted on the closure. For example, a portion of the latch located on one side of the mounting can serve as a handle for manual actuation, while the portion on the other side of the mounting is designed as an engagement element that serves to engage the locking device.

[0076] Particularly preferably, the latch is a strip-shaped or rod-shaped element, which optionally has a section bent into a handle. This allows for reliable and compact, yet stable and secure locking mechanisms that can also be easily operated by hand. However, the latch can, in principle, also have a different shape.

[0077] The locking device is preferably attached to the socket or designed for arrangement on the socket and / or an inner region of the shaft structure, in particular a wall of the partial volume to be separated. The locking device is particularly preferably intended for arrangement on the socket. If the locking device is not already arranged on the socket, it can be present in the equipment set as a separate part from the socket.

[0078] To attach the locking device to the socket, the socket and / or the locking device advantageously have corresponding connecting elements, e.g., screw holes, threaded bores, and / or threaded rods, which can interact to create a secure connection. The locking device can, for example, be attached to the socket after the socket has been installed in the shaft structure.

[0079] If the locking device is attached to the socket, its position can be precisely determined, which essentially eliminates incorrect positioning during assembly.

[0080] In principle, however, it is also possible to attach the locking device directly in the shaft structure, independent of the socket.

[0081] It is also conceivable to mount the locking device on the closure and attach the bolt to the socket or outside it in the shaft structure. This can be advantageous for special applications.

[0082] In an advantageous embodiment, the locking device has a movable element, which can be moved, in particular, between a closed position and an open position. This can serve to implement the coupling with the locking unit.

[0083] The movable element is in particular designed and mounted in such a way that it can perform a translational movement and / or a rotational movement, in particular both a translational movement and a rotational movement.

[0084] The movement of the movable element is preferably limited by a portion of the movable element guided in a guide groove and / or a guide slot of the locking device, in particular a guide pin, projection, and / or flange present on the movable element. This allows the movement of the movable element to be precisely defined or limited.

[0085] The movable element advantageously comprises a bolt which is movable in the axial direction along a longitudinal axis, in particular a substantially cylindrical bolt, wherein the bolt can preferably additionally execute a rotational movement about the longitudinal axis.

[0086] In principle, the movable element can also have a different shape, e.g. the shape of a rotatably mounted disc.

[0087] The locking device is preferably designed such that the movable element executes a defined movement into the opening position when the locking unit is unlocked due to the action of the bolt moving during unlocking.

[0088] For this purpose, in an advantageous embodiment, a driving element can be formed on the movable element, e.g., a recess and / or a projection, in particular a flange. The driving element serves, in particular, to mechanically transmit the movement of the bolt to the movable element. However, other I <opplungen denkbar.

[0089] The counter-holding element is preferably designed such that the movable element is held in the opening position by a securing element, so that the movable element can only be moved into the closing position when the securing element is released.

[0090] In other words, the counter-holding element is designed in particular such that the movable element is blocked in the open position by a locking element, thus preventing a return movement of the movable element to the closed position as long as the locking element is not released. This prevents the movable element from being returned to the closed position by simple manipulation of the movable element itself.

[0091] The securing element is advantageously designed such that the blocking of the movable element in the opening position is released by the bolt moving when the closure is locked when the bolt has assumed the locking position, in particular so that the movable element can be moved back into the closing position.

[0092] This ensures that the locking element can only release the movable element in the opening position when the lock is inserted into the socket and locked with the locking unit.

[0093] The securing element comprises, in particular, a locking mechanism movably mounted in the locking device, which engages and / or locks into a recess, taper, and / or constriction present on the movable element when the movable element has reached the opening position. This preferably occurs purely through the force of gravity.

[0094] The locking element can be held in the engaged and / or locked position by a spring element, for example. This can be helpful in the event of significant shocks, as it prevents the locking element from accidentally escaping from the engaged and / or locked position.

[0095] The securing element is designed in particular in such a way that when it engages in the area of ​​the recess, taper and / or constriction, there is a free space between a base area and the securing element, in particular in such a way that it can be lifted by the bolt which can be pivoted into the free space to release the locking device or to remove the engagement and / or the locking.

[0096] The locking mechanism is preferably designed as a flat part with a through-bore, in particular as a rectangular plate with a central bore. The locking mechanism is mounted, in particular, between two plate-shaped elements in the locking device, so that movement in a direction perpendicular to the longitudinal axis of the movable element is possible.

[0097] In this case, the movable element is preferably in the form of a cylindrical sliding bolt which has a constriction in one section into which the flat part can engage for blocking purposes.

[0098] The locking unit is advantageously mechanically coupled to the locking unit, particularly via a coupling gear and / or a cable. This allows the device set according to the invention to be used entirely without electrical power, reducing installation effort and ensuring reliable operation.

[0099] The coupling is particularly preferably implemented via a Bowden cable. A Bowden cable is understood, in particular, to be a movable machine element designed to transmit a mechanical movement or a tensile force by means of a flexibly deployable combination of a wire rope and a sheath that is pressure-resistant in the direction of travel.

[0100] In particular, a movement of the locking element in the locking unit is preferably coupled mechanically, in particular via a Bowden cable, to the movable element in the locking device, in particular such that when the movable element moves from the closed position to the open position, the locking element of the locking unit is moved from the neutral position into the locked position.

[0101] The use of a rope, especially a Bowden cable, has the advantage that the equipment set can be used in a wide variety of shaft structures, since the I <opplung flexibel verlegt oder montiert werden kann. Damit kann der erfindungsgemässe Gerätesatz auch in stark verwinkelten Schachtbauten oder in verschiedenen Schachtbauwerken mit ganz unterschiedlichen Höhen problemlos eingesetzt werden.

[0102] In principle, the coupling between the locking unit and the blocking unit can also be achieved by an electrical, optical and / or electronic coupling, for example via an electrical power supply cable, an electrical signal cable, an optical signal line and / or a wireless signal transmission.

[0103] In this case, the locking unit may, for example, comprise an electromagnetic actuator for actuating the locking element.

[0104] According to a further possible embodiment, the locking unit comprises an electrical, electronic, electromechanical and / or optical sensor, e.g. a reed contact, a light barrier and / or a mechanical limit switch, which can detect a neutral and locked position of the locking unit.

[0105] In particular, the locking unit may contain an electrical, electronic, electromechanical and / or optical sensor, e.g. a reed contact, a light barrier and / or a mechanical limit switch, which can detect an opening and locking position of the locking unit.

[0106] The device set may also include a control unit with which electrically or electronically operated components can be controlled.

[0107] According to a particular embodiment, the equipment set can include a data transmission interface. The data transmission interface is designed in particular to transmit, for example, the statuses of one or more sensors on the closing unit and / or the blocking unit to a monitoring unit located outside the shaft structure. The transmission can be wired and / or wireless.

[0108] If electrically powered components are used, the required power supply can be provided, for example, by a power grid connection, an accumulator, a battery, and / or a photovoltaic cell. The photovoltaic cell must be located outside the shaft structure.

[0109] The frame, the closure, the locking unit, and / or the locking unit are preferably made essentially of metal and / or plastic. The metal is, in particular, stainless steel.

[0110] Particularly preferably, the socket, the closure, the locking unit and / or the closing unit consists of at least 95 wt.% metal, in particular of stainless steel, while the proportion of plastic, e.g. for seals and / or cable guides, is at most 5 wt.%.

[0111] A further aspect of the present invention relates to a shaft structure that can be closed with a shaft cover and has at least one partial volume that can be separated and closed from the remaining shaft volume, comprising a device set of a closure system as described above. The device set is in the assembled state.

[0112] In particular, the socket is located in a wall surrounding the detachable sub-volume and defines a passage between the sub-volume and the remaining shaft volume. The passage thus formed is, in particular, the only passage between the remaining shaft volume and the detachable sub-volume.

[0113] The closure is preferably designed in such a way that it closes the passage completely and watertight when it is inserted into the socket and locked with the locking unit.

[0114] Furthermore, the locking unit in the shaft structure is arranged in such a way that in the locking position it prevents the shaft cover from being closed completely, while in the neutral position it allows the shaft cover to be closed completely.

[0115] In particular, the locking unit is designed and arranged such that, in the locking position when the shaft structure is open, the locking element protrudes through or out of the opening of the shaft structure. This effectively prevents the shaft structure from being closed with the shaft cover.

[0116] Particularly preferably, the blocking unit is mounted in a region of the opening of the shaft volume, in particular directly below the shaft cover, in particular on an inner wall of the shaft structure. This allows the blocking unit to be designed compactly, since it is located directly where the blocking effect is needed.

[0117] Preferably, the locking unit is mounted such that the guide of the locking unit runs in the vertical direction, as described above.

[0118] In principle, the locking unit can also be installed at a different location within the shaft structure. The locking element must then be designed so that it can still exert its locking effect in the area of ​​the shaft cover. This can be achieved, for example, by using a longer locking element and / or one or more deflection levers.

[0119] As already explained in connection with the device set, the locking unit is coupled to the locking unit in such a way that when the lock is released, the locking unit is moved to the locked position, and movement of the locking unit to the neutral position is only possible when the lock is locked. This makes it impossible to close the manhole cover when the lock is open.

[0120] A shaft structure is, in particular, a shaft structure accessible by one person. The shaft structure is preferably located underground.

[0121] A shaft opening of the shaft structure with the shaft cover removed is designed in particular in such a way that a person can enter the shaft structure.

[0122] The shaft structure preferably has a shaft opening with a minimum diameter of 50 cm, in particular at least 60 cm. The diameter of the shaft opening is preferably 50-300 cm, in particular 60-200 cm. The depth of the shaft structure is preferably at least 80 cm, in particular at least 100 cm, particularly preferably at least 150 cm. The depth of the shaft structure is in particular 80-10,000 cm, preferably 100-5,000 cm.

[0123] The shaft structure is, in particular, a wastewater shaft. Particularly preferably, the shaft structure is a combination shaft, in which a first wastewater line runs through the separated partial volume, and a second wastewater line runs completely outside the partial volume through an area of ​​the remaining shaft volume.

[0124] The first wastewater pipe is in particular a rainwater pipe of an I <analisation, während die zweite Leitung eine Schmutzwasserführende Leitung einer Kanalisation ist, oder umgekehrt.

[0125] The first wastewater-carrying line and / or the second wastewater-carrying line is preferably designed as a channel open at the top.

[0126] In particular, the separated partial volume and the remaining shaft volume are separated from each other in a liquid-tight, especially watertight, manner when the closure is locked with the locking unit. This is done in such a way that no liquid, especially no water, can pass from the partial volume into the remaining shaft volume or vice versa. For this purpose, the socket and / or the closure preferably have one or more seals.

[0127] In a further aspect, the present invention relates to a method for rehabilitating a shaft structure that can be closed with a shaft cover. In this process, a partial volume separated from the remaining shaft volume is created in the original shaft volume, and a closure system as described above is installed, in particular in such a way that a shaft structure as described above is created.

[0128] The shaft structure to be rehabilitated is, in particular, a shaft structure containing two or more infrastructure lines. It is particularly preferred to be a sewage shaft in a sewer network.

[0129] In particular, during the rehabilitation, at least one of the two infrastructure lines is spatially separated from the other infrastructure line by a border, so that one infrastructure line is present in the partial volume.

[0130] In particular, the shaft structure to be rehabilitated is a sewage shaft through which, before the rehabilitated operation, a first channel, at least partially open at the top, for conveying sewage, in particular a rainwater-carrying channel, and a second channel, at least partially open at the top, in particular a wastewater-carrying channel, run.

[0131] In particular, during the renovation, at least one of the two channels is spatially separated from the other channel by a border, so that the first channel is present in the partial volume.

[0132] The enclosure is preferably made of concrete, masonry, and / or plastic. Concrete is particularly preferred. This allows for particularly stable, durable, and watertight enclosures.

[0133] A concrete enclosure can be constructed by pouring concrete on site, particularly using formwork, and / or by installing precast concrete elements.

[0134] The socket of the inventive device set is advantageously integrated into the enclosure. For example, it can be cast in during the concrete pouring process. This ensures a stable, tight, and permanent attachment of the socket. In principle, however, the socket can also be retrofitted into the enclosure, for example, by inserting and securing the socket into an opening in the enclosure.

[0135] A further aspect of the present invention relates to the use of a blocking unit or a device set for a closure system as described above for the rehabilitation and / or construction of a shaft structure. The shaft structure is preferably designed as described above.

[0136] Further advantageous embodiments and combinations of features of the invention emerge from the following detailed description and the entirety of the patent claims. Kurze Beschreibung der Zeichnungen

[0137] The drawings used to explain the embodiment show: Fig. 1 a socket in the form of a frame that can be installed in a shaft structure; Fig. 2 a closure in the form of a lid that is made of Fig. 1 and has a pivotable latch on the top; Fig. 3a a locking device which, together with the latch arranged on the lid, is made of Fig. 2 forms a locking unit in the closed position with the housing open. The locking device is designed for attachment to the frame made of Fig. 1 designed; Fig. 3b the locking device 300 from Fig. 3a in the opening position; Fig. 3c the locking device Fig. 3b with attached housing cover; Fig. 3d, 3e the locking device from the Fig. 3a und 3b from the rear side where the engagement slot releases the latch Fig. 2 Fig. 4 the frame from Fig. 1 with a lid inserted into it Fig. 2 and the locking device attached to the frame from the Fig. 3a - 3d ; Fig. 5a a locking unit with a locking element movably mounted in a guide in the neutral position and a locking element in the neutral position in a perspective view from the rear (without rear cover); Fig. 5b the locking unit from Fig. 5a in a partial sectional view of the Fig. 5a right side; Fig. 5c the locking unit from the Fig. 5a with the rear cover mounted, viewed from the rear; Fig. 5d the locking unit from Fig. 5b with raised locking element and locking element in the release position; Fig. 5e the situation after the locking element has reached the locking position by starting from the position Fig. 5d has performed a tilting movement to the left; Fig. 5f the locking unit with the locking element in the locking position and the locking element 550 in the locking position in a perspective view from the rear (without rear cover) Fig. 5g the locking unit from Fig. 5f in a partial sectional view of the Fig. 5f right side; Fig. 5 a partial sectional view through the area of ​​the opening of a shaft with a mounted barrier unit; Fig. 6 a sewage shaft with a separated partial volume which is connected to the Fig. 1 - 5 shown components of the closure system in a partially cutaway view; Fig. 7 a section through the sewage shaft from Fig. 6 along the line A - A; Fig. 8 a section through the lower area of ​​an older combination shaft to be renovated, in which a rainwater gutter and a wastewater gutter are guided through a common shaft volume; Fig. 9 a second locking device, which instead of or in addition to the locking mechanism from the Fig. 3a - 3e can be used in the closed position with the housing open; Fig. 10 the locking device from Fig. 11 with attached housing cover; Fig. 11 the locking device from Fig. 12 in the opening position from the rear side where the engagement slot for a bolt is mounted; Fig. 12a - c the movement sequence in the locking device Fig. 13 when pivoting the bolt; Fig. 13 a top view of the securing element arranged in the locking device; Fig. 14a a section of the arrangement of Fig. 14b in longitudinal section along the longitudinal axis of the housing; Fig. 14b the situation from Fig. 16a, after the locking element has been moved upwards by the bolt or the engagement element arranged thereon.

[0138] In principle, identical parts in the figures are provided with identical reference symbols. Wege zur Ausführung der Erfindung

[0139] Fig. 1 shows a socket which can be installed in a shaft structure and is in the form of a frame 100, which is designed to receive a cover 200 as shown in Fig. 2 shown.

[0140] The frame 100 is a flat, one-piece rectangular frame, which forms a rectangular passage 101 in the interior. In the area of ​​the Fig. 1 upper edge, the frame 100 has an outwardly projecting and circumferential shoulder 110, which serves to support the edge area of ​​the cover 200 made of Fig. 2 is designed.

[0141] At the Fig. 1 On the upper right edge of the frame 100, a first rectangular projection 120 is arranged, which lies in the plane of the opening surface of the rectangular passage 101. The projection 120 serves to Fig. 3 shown locking unit to be attached to the frame 100.

[0142] On the opposite edge, in Fig. 1 On the left, lower edge, a second rectangular projection 130 is arranged in the same way as the first projection 120. On the top side of the second projection, two spaced and parallel holding elements 131, 132 are attached, which protrude with their free ends into the shoulder 110. Between the shoulder 110 and the two holding elements 131, 132 there is a slot-like free space in which the Fig. 2 The cover 200 shown can be inserted laterally. The holding elements 131, 132 serve to prevent the cover 200 from moving in a direction perpendicular to the plane of the passage opening when it is inserted.

[0143] Furthermore, two anchoring elements 141, 142 are attached below the second projection 130. On the opposite side, below the first projection 120, identical anchoring elements are attached (in Fig. 1 not visible). The anchoring elements serve to additionally anchor the frame 100 during concreting.

[0144] Fig. 2 shows a closure in the form of a one-piece lid 200. The lid has a rectangular upper side 201, from which an inwardly offset, circumferential rectangular frame 202 protrudes. Thus, the edge region of the upper side 201 forms a flange-like projection that completely surrounds the rectangular frame 202.

[0145] The rectangular upper side 201 or the flange-like projection formed in the edge region of the upper side 201 of the cover 200 is designed to complement the projecting shoulder 110 on the frame 100, while the rectangular frame 202 is designed to complement the rectangular opening 101 of the frame. Therefore, the flange-like edge region of the cover 200 can be pushed under the two holding elements 131, 132 and, resting on the shoulder 110, can be received and held in the frame 100, which in Fig. 4 is shown.

[0146] The cover 200 has seals (not shown) on the rectangular frame 202 and / or on the flange-like projection of the upper side 201 formed in the edge area, e.g. made of I <unststoff. Damit kann die Durchlassöffnung 101 bei eingelegtem Deckel 200 wasserdicht verschlossen werden. Die Dichtungen können dabei so angebracht werden, dass die Durchlassöffnung 101 auch bei erhöhtem Wasserdruck in beide Richtungen wasserdicht verschlossen ist.

[0147] In the area of Fig. 2 right, upper edge, a pivotable latch 250 is further attached to the upper side 201 of the lid 200. The latch 250 is pivotable in a plane parallel to the upper side 201 of the lid 200 and is mounted on a pivot axis 253 arranged perpendicular to the upper side 201. The rear free end of the latch 250, which is located above the surface 201, is shaped into a handle 252, with which the latch 250 can be pivoted. The opposite free end of the latch 250 is designed as an L-shaped engagement element 251, which projects beyond the surface 201 in the plane thereof and is used to engage the Fig. 3a - 3d shown locking device 300. The L-shaped engagement element 251 has a bevel or chamfer at the free end in the pivoting direction.

[0148] Fig. 3a shows a locking device 300, which is designed for attachment to the projection 120 of the frame 100, in the closed position with the housing open. The locking device 300 consists of a cuboid-shaped housing 301 in which a cylindrical bolt 310 is arranged, movable in the axial direction along the longitudinal axis of the housing 301. The bolt 310 is guided through a total of three rectangular partition walls 331, 332, 333 with central recesses that divide the interior of the housing, so that it is displaceable in the axial direction and rotatable about the longitudinal axis.

[0149] A cuboid projection 314 extending in the longitudinal direction is attached to the bolt 310. Since the first intermediate wall 331, seen from the left, has a recess complementary to the cross section of the bolt in the area of ​​the cuboid projection, the bolt 310 can be Fig. 3a shown rotational position cannot be moved in the axial direction to the left, since the cuboid-shaped projection 314 rests against the first intermediate wall 331. A movement in Fig. 3a to the right is also prevented by a guide pin 311 with a spherical handle, which projects radially from the bolt 310 and rests on the second intermediate wall 332.

[0150] Furthermore, the Fig. 3a rear area, a flange-like driving element 312 extends radially from the bolt 310. The driving element 312 serves to prevent the movement of the bolt 250, which in the closed state has an engagement slot 340 provided on the rear side (see Fig. 3d ) engages in the housing 301 (see Fig. 4 ), to be transferred mechanically to the bolt 310 when opening.

[0151] At the rear end of the bolt 310, it has a step-like tapered section 313. In this area, a fastening device in the form of a central longitudinal bore and a screw that can be screwed radially into the bore for fastening a wire rope 370 is also arranged. The wire rope is part of a Bowden cable, which is coupled to the Fig. 5a - 5h shown locking unit 500.

[0152] Between the second intermediate wall 332 and the third intermediate wall 333, there is a securing element 320 in the form of a flat and rectangular metal piece with a through-hole. The metal piece is in terms of its height (this is Fig. 3a measured perpendicular to the longitudinal axis upwards) is smaller than the partition walls 332, 333.

[0153] In addition to the central recesses, the two intermediate walls 332, 333 also have a recess 341 in the lower area, which is dimensioned such that the free end of the engagement element 251 from Fig. 2 can be pushed into the area under the two partition walls 332, 333.

[0154] The securing element 320 is dimensioned such that, when engaged in the region of the taper 313 (when the bolt has been moved forward accordingly), it protrudes into the free space 341, but does not rest on the lower base plate of the housing 301. This allows the engagement element 251, with its chamfered area, to lift the securing element 320 when pivoting in. At the same time, the securing element 320 is dimensioned such that it is lifted by the engagement element 251 such that the central bore forms a passage for the non-tapered section of the bolt 310, allowing it to be pushed axially through the intermediate walls 332, 333.

[0155] Fig. 3b shows the locking device 300 from Fig. 3a in the opening position. Based on the situation in Fig. 3a the bolt 310 with the guide pin 311 with spherical handle was turned upwards by 90° (so that the bolt with the cuboid projection 314 can be moved through the first intermediate wall 331) and in the housing 301 in the axial direction in Fig. 3b moved to the left side.

[0156] The cable 370 was pulled into the housing 301, whereby the Fig. 5a - 5h The locking unit shown can be activated.

[0157] In the Fig. 3b In the opening position shown, the bolt 310 has been moved so far forward that the securing element 320 has fallen into the tapered section 313 at the end of the bolt 310. Without raising the securing element 320 (which occurs during closing by the latch engaging in the engagement slot 340), the bolt 310 can therefore no longer be moved in the axial direction or in the direction shown in Fig. 3a shown position.

[0158] In Fig. 3c the locking device 300 is made of Fig. 3b with the housing cover 380 attached. The housing cover 380 has a guide slot 381 in which the guide pin 311, which protrudes from the bolt 310 and has a spherical grip, is guided. This defines the permissible rotational and axial movements of the bolt 310.

[0159] The Figuren 3d und 3e show the locking device 300 from the Fig. 3a und 3b from the rear side at which the engagement slot 340 for the latch 250 is provided in a central region of the lower edge in the housing 301.

[0160] Fig. 4 shows the frame 100 with the cover 200 inserted therein and the locking device 300 attached to the projection 120 of the frame 100.

[0161] The pivoting latch 250 attached to the cover 200 engages with the engagement element 251 in the engagement slot 340 of the locking device 300, so that the cover is locked in the frame. The locking device 300 is located in Fig. 4 in the closed position as shown in the Fig. 3a and 3d The engagement element 251 is located in the area between the driving element 312 and the intermediate walls 332, 333, with the front end of the engagement element 251 projecting below the securing element 320 and holding it in the raised state.

[0162] In the area of ​​the frame 100 opposite the locking device 300, the cover 200 lies between the holding elements 131, 132 and the support surface 110. The cover 200 is thus locked in the frame 100.

[0163] The Figuren 5a - 5h and 6 show a barrier purity in the embodiment according to the invention. The Fig. 5a shows a locking unit 500 with a locking element 520 movably mounted in a guide 510 in the neutral position and a locking element 550 in the neutral position in perspective views from the rear side (without rear cover). Fig. 5b shows the same locking element 500 in a partial sectional view of the one in Fig. 5a viewed from the right side.

[0164] In Fig. 5c The locking element 500 is shown from the rear side with the rear cover 510a mounted. The rear side is the side with which the locking element 500 is attached to a shaft.

[0165] The guide 510 consists of a U-shaped profile strip open on both sides with laterally projecting mounting flanges 511, 512 and, together with these and the rear cover 510a, forms the base body of the locking unit. The locking element 520 is designed as a strip-shaped element with a rectangular profile, which in the Fig. 5a shown neutral position is completely received in the concave area in the guide 510.

[0166] The locking element 520 has a wedge-shaped end portion 521 at its upper free end. At the opposite or lower end 522, the locking element 520 has a projection or an L-shaped foot, which has approximately the width of the concave area in the U-shaped profile 520.

[0167] Furthermore, in the concave area of ​​the guide 510 between the end section 521 and the lower end 522, a cuboid-shaped base 515 is attached laterally to the guide 510.

[0168] The locking element 520 has a lateral rectangular recess 523 between the two ends 521, 522, which has approximately the size of the base 515, so that the recess 523 of the locking element can partially encompass the base 515 (see Fig. 5g ).

[0169] A cable 370 is attached to the lower end 522 of the locking element 521 and is led out of the guide 510 through an upper passage 513 in the base 515 (and coupled to the locking unit during use).

[0170] The locking unit 500 further comprises a locking element 550, which is inserted into the Fig. 5a und 5b in the neutral position. The locking element 550, like the blocking element 520, is designed as a strip-shaped element with a rectangular profile, which in the Fig. 5a und 5b shown neutral position is also completely accommodated in the concave area in the guide 510. A handle protruding from the guide 510 is also attached to the locking element as an actuating element 560.

[0171] The locking element 550 has a first angled end portion 551 at its first or upper end and a second angled end portion 552 at its opposite end. The locking element 550 engages around the blocking element 520 in the neutral position with the two angled end portions 551, 552, wherein a length of the blocking element 520 in the longitudinal direction approximately corresponds to a length of the free space between the angled end portions 551, 552 of the locking element 550.

[0172] The end portion 521 of the locking element and the first angled end region 551 of the locking element 550 close the guide 510 at the upper end substantially flush.

[0173] The Fig. 5d shows the locking unit 500 from Fig. 5b with the locking element 550 in the release position.

[0174] The Fig. 5d The position shown was achieved as follows: Starting from the neutral position in Fig. 5a und 5b The locking element 520 was raised longitudinally by pulling on the cable 370 in the guide 510 until the end section 521 of the locking element 520 protruded completely from the guide 510. In doing so, the locking element, resting on the end section 521 with the first angled end region 551, was also raised. In this position, the locking element 520 can perform a tilting movement to the left.

[0175] Fig. 5e shows the situation after the locking element 520 has reached the locking position by starting from the position Fig. 5d has performed a tilting movement to the left. This occurs automatically due to the oblique contact surface of the end section 521 by lateral force from the first end region 551. Due to the oblique arrangement, the recess 523 encompasses the base 515 in the upper region, with the upper boundary edge 523a of the recess 523 resting on the upper side of the base 515. If the locking unit 500 is mounted on a shaft structure, the end section 520 can also be supported in the locking position, for example, on the socket of a shaft cover, which in Fig. 5h is shown.

[0176] Fig. 5f und 5g shows the locking unit 500 with the locking element 520 in the locking position and the locking element 550 in the locking position (in Fig. 5f The rear cover 510a is not shown for clarity. The locking position is achieved when the locking element 550 is released by the tilting of the locking element 520 and falls downwards due to the effect of gravity. It is lowered completely into the interior of the guide 510 until its first angled end portion 551 rests on the base 515. In this position, it secures the locking element 520 in the tilted position by the first angled end portion 551 blocking the space required for it to tilt back. Since the locking element rests on the base 515, it cannot be pushed downwards even by the application of force.

[0177] As long as a tensile force acts via the cable 370, which is always the case when the locking unit 300 is coupled and the bolt 250 is not locked, the blocking element 520 cannot move into the guide 510, even if the locking element 550 is moved out of the guide again.

[0178] To move the locking element 520 from the locked position to the neutral position, (i) the latch 250 must be correctly closed so that the tensile force on the cable 370 is removed, and (ii) the locking element 550 must also be raised via the actuating device 560 until it projects beyond the end portion 521 of the locking element 520 with the first angled end 551. If this occurs, the locking element 550 can tilt back from the inclined locked position and be moved into the neutral position together with the resting locking element 550.

[0179] Fig. 5h shows a partial sectional view through the opening area of ​​a shaft 590 with the mounted locking unit 500. The locking element 520 is in the locked position and the locking element 550 is in the locked position. The basic body of the locking unit, which is formed by the guide 510, the rear cover 510a, and the mounting flanges 511, 512, is mounted flush with the socket 591 for the shaft cover 592 inside the shaft, so that the longitudinal axis of the guide 510 runs vertically.

[0180] The end section 521 of the locking element 520 protruding from the guide 510 makes it impossible to fully insert the manhole cover 592 into the socket 591. The manhole cover 592 cannot therefore be brought into the closing configuration (indicated by the broken line).

[0181] Fig. 6 shows an arrangement 600 in which a shaft structure to be arranged underground in the form of a tubular sewage shaft 601 is equipped with a device set according to the invention. In the illustration in Fig. 6 The sewage shaft 601 is partially cut open in the upper area of ​​its shell surface to better visualize its interior. In reality, however, the sewage shaft 601 has a continuous shell surface, as indicated by the dashed lines.

[0182] The equipment set includes the version 100 from Fig. 1 , the lid 200 from Fig. 2 , the locking mechanism 300 from the Fig. 3a - 3e and the locking unit 500 from the Fig. 5a - 5g .

[0183] The sewage shaft 601 has a circular opening 610 at the upper end, which is essentially at ground level. The opening can be closed with a Fig. 6 not shown cover, which can be placed on the edge areas of the sewage shaft 601 surrounding the opening 610.

[0184] At the lower end of the sewage shaft 601, an upwardly open rainwater channel 620 and an upwardly open wastewater channel 630 run essentially parallel and horizontally through the sewage shaft 601. This is particularly important in Fig. 7 , which is a section along the line A - A in Fig. 6 clearly visible. The pipes are designed for connection to a sewer system. Accordingly, sewage shaft 601 is a combination shaft.

[0185] The rainwater gutter 620 runs through a partial volume 602 that is separable or separated from the remaining shaft volume 603, while the wastewater gutter 630 runs completely outside the partial volume 602 through the area of ​​the remaining shaft volume 603. The separation of the two gutters 620, 630 is realized by a concrete frame 650, which completely surrounds the rainwater gutter 620 in the wastewater shaft 601. In the horizontal ceiling area of ​​the frame 650, the frame 100 is made of Fig. 1 The cover made of Fig. 2 inserted and with the attached locking mechanism 300 from the Fig. 3a - 3e locked. In this state, the partial volume 602 and the remaining shaft volume 603 are separated from each other in a watertight manner. Thus, when the cover 200 is closed, no liquid can pass from the partial volume into the remaining shaft volume or vice versa.

[0186] In the area of ​​the opening 610 of the sewage shaft 601, the blocking unit 500 is also made of the Fig. 5a - 5g This is done in such a way that the longitudinal axis of the blocking unit 500 is vertical and the blocking element 520 in the closed state allows the manhole cover to be placed on it and the opening 610 of the sewage shaft 601 to be closed. In this case, the blocking unit is in the position shown in the Fig. 5a und 5b shown neutral position.

[0187] The coupling between the locking mechanism 300 and the blocking unit 500 is effected by a cable 370, which is part of a Bowden cable that runs and is attached to the inner wall of the sewage shaft 601.

[0188] If the guide pin 311 with ball-shaped handle on the locking mechanism 300 is now removed from the Fig. 3a shown closed position is rotated upwards by 90° and then the bolt 250 on the cover 200 is opened by a pivoting movement, the engagement element 251 present on the bolt is pressed against the driving element 312 and the bolt 310 is moved forwards so far that the securing element 320 falls into the tapered section 313 at the end of the bolt 310 (this corresponds to the Fig. 3b und 3c (opening position shown). Due to the movement of the bolt 310, the cable 370 attached to the bolt is pulled into the housing 301 of the locking mechanism 300, which in turn causes the locking element 520 attached to the other end of the cable 370 in the locking unit 500 to be raised vertically out of the guide 510 through the opening 610. In this state, the locking element protruding from the guide 510 makes it impossible to place the manhole cover and thus close the opening 610 of the sewage shaft 601.

[0189] Only when the cover 200 is completely closed and locked with the locking unit 300 can the bolt 310 be moved back into the closed position, which also releases the tensile force on the cable 370. This is because the engagement element 251, upon locking, lifts the securing element 320, which is locked in the tapered section 313 of the bolt 310, so that the bolt 310 can be moved back in the direction of the longitudinal axis. If the locking mechanism is then in the closed position again, the blocking element 520 in the blocking unit can be pushed back into the neutral position—provided the locking element 550 is raised at the same time—and the opening 610 of the sewage shaft 601 can be closed again.

[0190] This ensures that the wastewater shaft 60 1 can only be closed if the cover 200 is correctly closed and the two volumes 602, 603, or the rainwater gutter 620 and the wastewater gutter 630 are separated from each other in a watertight manner.

[0191] Fig. 8 shows a section through the lower part of a typical I to be renovated <ombischachts 701, in welchem eine Niederschlagswasserrinne 720 und Schmutzwasserrinne 730 durch ein gemeinsames Schachtvolumen geführt werden. Hierbei ist problematisch, dass Wasser aus der einen Rinne in die andere Rinne gelangen kann, was gemäss neueren Bestimmungen nicht mehr zulässig ist.

[0192] With the device set according to the invention or with the socket 100, the cover 200, the locking mechanism 300 and the locking unit 500, the combination shaft 701 can be converted with relatively little effort into a shaft as in the Fig. 6 and 7shown. To do this, it is sufficient to create a border around one of the gutters and install the closure system according to the invention within it.

[0193] Fig. 9 shows a second locking device 300a, which instead of or in addition to the locking mechanism 300 of the Fig. 3a - 3e can be used in the closed position with the housing open.

[0194] The locking device 300a consists of a cuboid housing 301a in which a cylindrical bolt 310a is arranged, movable in the axial direction along the longitudinal axis of the housing 301a. The bolt 310a is guided through two rectangular partition walls 332a, 333a with central recesses that divide the interior of the housing, as well as in a recess in the rectangular end face 331a of the housing 301a, so that the bolt is displaceable in the axial direction and rotatable about the longitudinal axis.

[0195] Furthermore, a flange-like driving element 312a is arranged around the bolt 310a. The driving element 312a serves to prevent the movement of a bolt (e.g. a bolt as in Fig. 2 shown), which in the closed state has an engagement slot 340a on the rear side (see Fig. 13 ) can engage in the housing 301a, to be mechanically transferred to the bolt 310a upon opening. Furthermore, the driving element 312a serves as a stop, which limits the axial movement of the bolt 310a along the longitudinal axis in the housing 301a. In the area of ​​the driving element 312a, a guide pin 311a with a spherical grip protrudes radially from the bolt 310a.

[0196] Between the partition walls 332a, 333a, there is a securing element 320a in the form of a flat and rectangular metal piece with a through-hole. The metal piece is in terms of its height (this is Fig. 13 measured perpendicular to the longitudinal axis upwards) is smaller than the intermediate walls 332a, 333a.

[0197] In addition to the central recesses, the two intermediate walls 332a, 333a also have recesses 341a in the lower area, which are dimensioned such that the free end of an engagement element 251a (cf. Fig. 14a - 14c) can be pushed into the area under the two intermediate walls 332a, 333a.

[0198] At the rear end of the bolt 321, it has a step-like tapered section 313. In this area, a fastening device in the form of a central longitudinal bore and a screw that can be screwed radially into the bore for fastening a wire rope 370a is also arranged. The wire rope is part of a Bowden cable, which is coupled to the Fig. 5a - 5g shown locking unit 500.

[0199] The securing element 320a is dimensioned such that, when engaged in the area of ​​the taper 313a, it protrudes into the free space 341a, but does not rest on the lower base plate of the housing 301a. This allows the engaging element 251a, with its chamfered area, to lift the securing element 320a when pivoting in. At the same time, the securing element is dimensioned such that it is lifted by the engaging element 251a such that the central bore forms a passage for the non-tapered section of the bolt 310a, allowing it to be pushed axially through the intermediate walls 332a, 333a.

[0200] In Fig. 10 the locking device 300a is made of Fig. 9 with the housing cover 380a attached. The housing cover 380a has a guide slot 381a in which the guide pin 311a with a spherical grip protruding from the bolt 310a is guided. This defines the permissible rotational and axial movements of the bolt 310a.

[0201] Fig. 11 shows the locking device 300a from Fig. 10 in the opening position from the rear side where the engagement slot 340a for a latch is located in the region of the lower edge in the housing 301a. Since the locking device is in Fig. 13 is in the opening position, the bolt 310a protrudes from the end face 331a and the guide pin 311a with spherical grip is pushed in the guide slot towards the end face 331a and rotated upwards.

[0202] The Fig. 12a - 12b shows the movement sequence in the locking device 300a from Fig. 11when pivoting in a latch 250a, which is pivotable about a pivot axis 253a and is attached to the surface 201a of a second cover 200a. For illustration purposes, the housing is partially cut open to show the inner areas. In reality, however, the housing is as shown in Fig. 11 shown locked.

[0203] The second cover 200a is designed similarly to the cover 200 from Fig. 2 , but has a differently shaped latch 250a. The rear free end of the latch 250a is a U-shaped, bent-back handle 252a, while the opposite free end is a straight, strip-shaped engagement element 251a with a lateral bevel or chamfer in the region of the free end.

[0204] In Fig. 12a shows the situation after the cover 200a has been inserted into the associated socket, with the pivotable latch 250a pivoted completely over the surface 201a of the cover 200a.

[0205] In order for the pivoting latch 250a to engage the locking device 300a, the protruding guide pin 311a with a spherical grip is moved upwards, so that a notch 312a.1 in the driving element 312a allows the engagement element 251a to pivot into the area between the driving element 312a and the intermediate wall 332a. This situation is in Fig. 12b shown.

[0206] If the bolt 250a is used as in Fig. 12c As shown, the engaging element 251a is pivoted further into the locking device 300a, and the locking element 320a is pushed under the intermediate walls 332a, 333a, thereby raising the locking element 320a. This is facilitated by the bevel on the engaging element 251a. The bolt 320a is thus released.

[0207] In the Fig. 12c In the position shown, the cover 200a is completely and securely closed. Accordingly, by pulling on the cable (e.g., by applying force to the locking element in the locking unit) or by manually moving the guide pin 311a with a spherical grip, the bolt 320a can be pushed back into the housing 301a. This allows a coupled locking unit to be moved to the neutral position so that a manhole cover can be installed and the manhole closed.

[0208] Fig. 13 shows a plan view of the substantially rectangular securing element 320a of the locking device 300a from the Fig. 9 - 12c In a central area, there is a bore 320a.1, which is dimensioned such that the securing element can also be moved along the non-tapered section of the bolt 320a. In the lower right corner, the securing element 310a has a cuboid-shaped recess.

[0209] Fig. 14a shows a section of the arrangement from Fig. 12b in longitudinal section along the longitudinal axis of the housing 30 1a. The locking element 320a, which is movably mounted between the two intermediate walls 332a, 333a, is locked in the taper 313a and prevents the bolt 310a from Fig. 14a can be pushed to the left, since it is located at the transition to the thicker section on the locking element 320a.

[0210] In Fig. 14b shows the situation Fig. 14a after the engagement element 251a has been pushed into the free space 341a, thereby moving the locking element 320a upward. In this position, the passage for the bolt 310a is free, since the central bore in the locking element 320a now directly overlaps the recesses in the intermediate walls 332a, 333a. This creates a continuous free space, which allows the bolt 310a to be moved to the left.

[0211] In the locking device 300 from the Fig. 3a - 3e the mechanism works analogously.

[0212] So instead of the frame 100 from Fig. 1 A different frame may be used, which, for example, widens or narrows in the direction of the passage. The frame may also be round instead of rectangular, for example, in the form of a ring. The frame 100 or a differently designed frame may also include additional connecting elements for closing the cover and / or may have no anchoring elements or different anchoring elements.

[0213] Likewise, the lid 200 can be made of Fig. 2 have a different shape, e.g., a round shape, and / or have additional connecting elements for closing the container. A sensor can also be integrated into the lid, e.g., a pressure sensor, which can be used to measure or monitor a physical quantity, e.g., pressure, in the separated volume.

[0214] It is also possible in principle to remove the locking devices 300, 300a from the Fig. 3a - 3e and 11 - 13on one of the covers 200, 200a and to arrange the associated pivotable latch 250, 250a on the socket or frame 100.

[0215] In addition to the alternative locking device 300a already shown in the Fig. 9 -11 can be used instead of the locking device 300 from the Fig. 3a - 3e A differently designed or modified locking device can also be used. For example, the securing element 320, 320a can be pressed downward with a spring force, so that unintentional rebound in the event of very strong shocks is completely ruled out.

[0216] Instead of the Fig. 5a - 5g Differently designed or modified locking devices can also be used in the locking unit 500 shown.

[0217] The coupling between the locking unit and the locking unit can be achieved instead of or in addition to a cable or Bowden cable by a mechanical gear, e.g. using I <opplungsstangen, Zahnrädern und / oder Ketten, realisiert werden.

[0218] Furthermore, the Fig. 6 The shaft structure 601 shown may have a different shape and / or contain more than two infrastructure lines. In the latter case, several closure systems according to the invention may also be installed in a single shaft, with all infrastructure lines being separated from one another.

[0219] In summary, it can be stated that a novel barrier unit and an advantageous closure system for shaft structures have been created, which significantly simplifies the construction and rehabilitation of shaft structures for different and separate infrastructure lines and at the same time ensures the best possible safety.

Claims

1. Locking unit (500) for a shaft structure which can be closed with a shaft cover, wherein the locking unit (500) can take a locking position and a neutral position, and wherein the locking unit (500) is designed in such a way that, in the mounted state, it prevents complete closing of a shaft cover in the locking position, while in the neutral position it permits complete closing of the shaft cover, wherein the locking unit comprises: a) a main body with which the locking unit (500) can be mounted in a region of the opening of the shaft structure, in particular directly below the shaft cover, preferably on an inner wall of the shaft structure; b) a blocking element (520) which is mounted movably in or on the main body by a guide (510) and can be moved between a locking position and a neutral position, c) a movably mounted locking element (550) which can be moved between a release position and a locking position, and optionally a neutral position, d) wherein the locking element (550) is designed in such a way that: (i) in the release position it permits movement of the blocking element (520); (ii) in the locking position it interacts with the blocking element (520) in such a way that the blocking element (520) is blocked; characterized in that the guide is a linear guide (510) and the blocking element (520) and locking element (550) are mounted in the same linear guide (510).

2. Locking unit according to claim 1, wherein the linear guide (510) is a cuboidal groove and / or a cuboidal cavity, and wherein, in particular, the linear guide runs in the vertical direction in the mounted state of the locking unit (500).

3. Locking unit according to at least one of claims 1-2, wherein a) the blocking element (520) is a strip-shaped element which, at a first end, has an end section (521) projecting perpendicularly to a longitudinal axis of the strip-shaped element and / or, at the opposite end, has a projection (522) projecting perpendicularly to the longitudinal axis of the strip-shaped element, and wherein b) the locking element (550) is a strip-shaped element which, at its first end, has a first angled end region (551) and, at its opposite end, has a second angled end region (552), wherein preferably the first and the second angled end region run perpendicularly to a longitudinal axis of the locking element (550).

4. Locking unit according to claim 3, wherein the locking unit (500) has a base (515) arranged in the guide (510), wherein the base (515) is designed and arranged in such a way that: a) a freedom of movement of the blocking element (520) in the guide (520) is limited by the base (515), wherein the base (515) is preferably designed as a stop for the end section (521) and / or the projection (522) of the blocking element (520), in particular the base (520) is arranged between end section (521) and projection (522); and b) the blocking element (520) is supported on the base (515) in the locking position.

5. Locking unit according to at least one of claims 3-4, wherein the first angled end region (551) of the locking element (550) projects out of the guide (510) in the release position and is lowered into the guide (510) in the locking position.

6. Locking unit according to at least one of claims 1-5, wherein the locking element (550) engages around the blocking element (520) with the two angled end regions (551, 552) in the release position, and optionally also in the neutral position.

7. Locking unit according to at least one of claims 1-6, wherein the locking unit (500) is designed in such a way that the blocking element (520) performs a linear movement with a subsequent tilting movement during the movement from the neutral position into the locking position.

8. Locking unit according to at least one of claims 1-7, wherein the blocking element (520) projects out of the guide (510) in the locking position, wherein the longitudinal axis of the blocking element (520) is oblique to the longitudinal axis of the guide (510) and / or oblique to the longitudinal axis of the locking element (550), and wherein the locking element (550), when it is brought into the locking position or is present in it, blocks the blocking element (520) in the locking position with the first angled end region (551), so that a tilting movement of the blocking element (520) is prevented.

9. Locking unit according to at least one of claims 1-8, wherein the locking element (550) has an actuating element (560), in particular a handle, for manually moving the locking element (550) from the locking position into the release position.

10. Locking unit according to at least one of claims 1-9, wherein the locking element (550), when it is present in the neutral position, is moved into the release position by a movement of the blocking element (520), in particular a linear movement.

11. Locking unit according to at least one of claims 1-10, wherein the locking unit (500) is designed in such a way that the locking element (550), when the blocking element (520) is moved in the locking position or is present in this position, is moved automatically into the locking position, preferably by the action of gravitational force.

12. Locking unit according to at least one of claims 1-11, wherein the locking unit (500) has an interface (513) for connecting a mechanical coupling element (370), in particular a cable and / or a coupling gear, for the blocking element.

13. Kit-of-parts of a closure system for a shaft structure (601) which can be closed with a shaft cover, wherein the kit-of-parts comprises: a) a closure (200) for opening and closing a partial volume (602) which can be separated from the remaining shaft volume (603); b) a socket (100) which can be installed in the shaft structure (601) and is designed to receive the closure (200); c) a closure unit (250, 300) which has a locking position and a release position, with which the closure (200) can be locked or released in the socket, such that it can be fixed mechanically in the locked state in the socket (100); d) a locking unit according to one of claims 1-12; wherein the locking unit (500) can be or is coupled to the closure unit (250, 350) in such a way that, when the closure (200) is released, the locking unit (500) is moved into the locking position and that a movement of the locking unit (500) into the neutral position is possible only when the closure (200) is locked.

14. Shaft structure (601), in particular in the form of a wastewater shaft, which can be closed with a shaft cover and has at least one partial volume (602) which can be separated and closed from the remaining shaft volume (603), comprising a locking unit according to at least one of claims 1-12 or a kit-of-parts according to claim 13, wherein: a) the socket (100) is present in a wall (650) surrounding the separable partial volume (602) and, when the closure (200) is open or removed, defines a single passage between the partial volume (602) and the remaining shaft volume (603); b) the closure (200) is designed in such a way that it closes the passage (101) completely in a watertight manner when it is inserted into the socket (100) and is locked with the closure unit (250, 300); c) the locking unit (500) is arranged in the shaft structure (601) in such a way that, in the locking position, it prevents complete closing of the shaft cover, while in the neutral position it permits complete closing of the shaft cover; d) the locking unit (500) is coupled to the closure unit (300) in such a way that, when the closure (200) is released, the locking unit (500) is moved into the locking position and that a movement of the locking unit into the neutral position is possible only when the closure (200) is locked and the locking element is in the release position.

15. Method for renovating a shaft structure (701) which can be closed with a shaft cover, characterized in that a partial volume separated from the remaining shaft volume is produced in the original shaft volume and a kit-of-parts of a closure system according to one of claims 13 is installed, in particular in such a way that a shaft structure according to one of claims 14 is produced.

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