Installation element for a shaft construction

Abstract

The invention relates to an installation element which, during use in a shaft structure, is designed to connect from the inside to a wall section, referred to as the contact point, of a tubular base body of the shaft structure. The installation element is provided with a pressure element which, during use, is supported in the shaft structure on the side opposite the contact point in such a way that the installation element is pressed against the contact point and held stationary in the shaft structure. According to the invention, the installation element has a connection opening which, during use, is in flow connection with an inlet or outlet of the shaft structure which opens laterally into the shaft structure. The pressure element is designed to be supported in the shaft structure opposite the inlet or outlet.

Description

[0001] The invention relates to an installation element according to the preamble of claim 1. The installation element is designed, during use in a shaft structure, to connect from the inside to a wall section of a tubular base body of the shaft structure, referred to as the contact point. The installation element is provided with a pressure element, which is designed, during use, to be supported on the side opposite the contact point in the shaft structure in such a way that the installation element is pressed against the contact point and held stationary in the shaft structure.

[0002] A generic installation element from ball-b GmbH & Co KG is known under the name "ToxProtect 1402Ex-VF VarioFix" (https: / / www.ball-b.de / produkte / toxprotect-1402). It is a bait protection box for rat control in sewers. The bait protection box is the installation element that is to be installed in a shaft structure and secured against accidental displacement. It is placed on the floor, e.g., the berm of a shaft, against the wall of the shaft structure. A rod runs diagonally upwards to the opposite side of the wall of the shaft structure, so that the installation element is spread out in the shaft structure, i.e., rests against the wall at two diametrically opposite points. Due to the circular cross-section of the shaft structure, the installation element is thus secured against unwanted displacement.

[0003] For the purposes of this proposal, a shaft structure is defined as a structure that has a tubular base body, which may, for example, be composed of individual stones or ring-shaped modules or cast in one piece, and which is arranged in an upright orientation in the ground. For example, such a shaft structure can be designed as a so-called shaft, with inlets and outlets opening laterally into the base body, or the shaft structure can be designed, for example, as a so-called street gully, with an inlet at the top and an outlet opening laterally into the base body.

[0004] Commonly used installation elements for shaft structures include: backflow valves, frog valves, internal drops, filters, flow-reducing throttles, plugs that completely interrupt the flow as permanent or temporary closures, e.g., in the event of an emergency, or odor traps, although this list is not exhaustive.

[0005] These non-standard installation elements each connect to an inlet or outlet of the shaft structure and require arrangement within the shaft structure in a specific position relative to an inlet or outlet of the shaft structure, and also at a height determined by the outlet. Since significant amounts of water can flow through the shaft structure during rainfall events, secure mounting of the installation elements within the shaft structure is required, and a tight connection to the outlet of the respective inlet or outlet must be ensured.

[0006] The secure hold of non-standard installation elements can be achieved by permanently fixing the respective installation element, e.g., by screwing it to the base body of the shaft structure or by attaching it to an access ladder that is itself firmly mounted in the base body of the shaft structure. In this case, there are fixed, unchangeable contact points where the installation element comes into contact with the shaft structure and remains in contact. Firstly, such a fixed fixation requires considerable assembly effort to position the installation element in the shaft structure. Secondly, the installation element fixed in the base body may hinder maintenance work within the shaft structure, depending on the size of the installation element and its location within the shaft structure.Thirdly, the fixed fixation increases the effort required for maintenance work on the installation element itself, because the fixed arrangement within the shaft structure means that the maintenance work must be carried out within the shaft structure and therefore cannot be carried out by a single person. Rather, a second safety person is required when a maintenance person enters the shaft structure.

[0007] The invention is based on the object of enabling a quick and uncomplicated initial installation of an installation element connected to an inlet or outlet in a shaft structure with little preparation and handling effort and to be able to dismantle the installation element from the shaft structure for later maintenance work with likewise little handling effort and then to be able to re-install it in the shaft structure, whereby a secure fit of the installation element at the inlet or outlet is ensured during use.

[0008] This object is achieved by a built-in element according to claim 1 and by the use of a built-in element according to claim 18. Advantageous embodiments are described in the subclaims.

[0009] According to the invention, the installation element has a connection opening that, during use, is in flow communication with an inlet or outlet of the shaft structure, which opens laterally into the shaft structure. The pressure element is designed to be supported in the shaft structure opposite the inlet or outlet during use.

[0010] In other words, the invention proposes, on the one hand, to fix the installation element in a fixed position within the shaft structure, but, on the other hand, to mount it not in the manner described above, for example, in the form of a screw connection, so that it has permanent contact points with the shaft structure. The invention resolves this apparent contradiction by providing the installation element with a pressure element, which serves to brace the installation element within the base body of the shaft structure. Because the pressure element can be relieved of load when necessary, the installation element can be removed from its use position and taken out of the shaft structure, so that it can be lifted out of the shaft, for example, for maintenance work.Unlike pure expansion, not only is support achieved on the shaft wall, but tension or compressive forces are built up, which ensure a particularly secure fit of the installation element, for example to hold it securely even at a distance above the shaft floor.

[0011] According to the invention, the installation element has a connection opening which, during use, is in flow connection with an inlet or outlet of the shaft structure which opens laterally into the shaft structure. Since the pressure element is designed to be supported in the shaft structure opposite the inlet or outlet during use, a secure fit of the installation element at the inlet or outlet is ensured because upward or downward forces strong enough to cause an upward or downward displacement of the installation element do not occur. Since the inlet or outlet is often arranged at a distance above the shaft floor, the installation element is thus protected against sliding down the wall of the shaft structure and moving away from the inlet or outlet, which would make a tight connection of the installation element to the inlet or outlet impossible.

[0012] In order to achieve the practically horizontal contact pressure with which the installation element is securely held in position within the shaft structure, the pressure element can run horizontally. However, two or more pressure elements can also be used which run at an angle to achieve a resultant force vector that creates the desired horizontal contact pressure. For example, one pressure element can run at an angle upwards and the other downwards, or in a horizontal plane, pressure elements can run at an angle to the side. The wider support base ensures that the installation element is held particularly securely. In addition, this way it can be possible, for example, to install an installation element even if another inlet or outlet opening opens into the shaft structure exactly opposite the inlet or outlet opening to which the installation element is connected.

[0013] Both during the initial installation of the installation element in the base body of the shaft structure and later when inserting the installation element into the base body after maintenance work, the installation element only needs to be placed against a wall section of the base body and the pressure element on the opposite side also needs to be pressed against the base body so that the installation element is now held securely and stationary within the shaft structure.

[0014] During initial installation, it is not necessary to structurally prepare the shaft structure for the installation of the installation element. No dowels need to be inserted or screws driven into the base of the shaft structure, no clamps need to be mounted on a permanently installed access ladder to which the installation element can then be attached, or similar structural preparatory measures need to be carried out.

[0015] Rather, it may be necessary to clean the inner wall surface of the base body where either the installation element itself or its pressure element is to be in contact with the base body, in order to enable the most complete contact surface possible where this is necessary, e.g., for sealing reasons, or to prevent the installation element itself or its pressure element from slipping off the surface of the base body. Depending on the local conditions and the design of the installation element, even such preparatory cleaning work may not be necessary. As a result, both during maintenance work and during initial installation, the installation and disassembly of the installation element can be carried out with significantly less handling effort than with conventional, permanently mounted installation elements.

[0016] The pressure element is preferably movable into its use position against the force of a spring, which is particularly preferably formed by a separate spring element. The spring force required to brace the installation element can be built up by the pressure element, in that the pressure element itself has the spring element or forms the spring element. Alternatively or additionally, the installation element preferably has an elastically deformable seal, which forms the spring and runs around the inlet or outlet. The spring force can be provided by the seal with which the installation element is sealed off from the inlet or outlet opening. If the seal is designed, for example, as a sealing ring that lies around the inlet or outlet opening of the wall of the shaft structure, this seal can, due to its material properties, e.g.By selecting a suitable elastomer material, the seal can both achieve the desired sealing effect and exhibit such restoring forces that the seal acts as a spring, pressing the pressure element against the opposite side of the shaft structure's wall. Alternatively or additionally, the U-shaped pressure bar itself preferably forms the spring. Particularly preferably, the spring is formed by a combination of at least two of the following spring-acting components: seal, pressure bar, separate spring element.

[0017] The pressure element preferably has a spring-loaded pressure piece which is designed to bear against the base body under spring tension during use. In one embodiment, the pressure element can have rigid but adjustable components in order to selectively generate a contact pressure and to brace the installation element in the shaft structure, or to enable pressure relief and to enable mobility of the installation element in the shaft structure for assembly or disassembly of the installation element. For example, the pressure element can be provided with a spindle so that it is movable in the manner of a screw connection. Accordingly, the pressure piece can be extended from an initially retracted position by means of a corresponding spindle movement in order to bear against the wall of the base body on the inside with the desired pressure. The desired spring effect with such a rigid design of the pressure element is then provided by a separate spring element, such asthe elastically deformable seal mentioned above.

[0018] In another embodiment, the pressure element comprises one or more spring-loaded elements, in particular a spring-loaded pressure piece. This can facilitate particularly easy handling of the installation element without having to perform the aforementioned screwing movement. The pressure element can be movable in such a way that it can either assume an active position or be removed from this active position. Two different embodiments of a spring-loaded pressure element are explained below purely by way of example and not as an exhaustive list.

[0019] For example, the pressure element can be designed in the form of a telescopic cylinder that can be compressed against the spring action by means of a suitable fitting, e.g. an eccentric fitting or a correspondingly deflected cable pull, so that in this position the installation element can be brought into its predetermined position within the shaft structure. If the fitting is subsequently actuated, e.g. the eccentric fitting also by means of a shaft hook, the spring is gradually released so that the telescopic cylinder expands until the pressure element rests against the wall of the base body. Further actuation of the fitting no longer changes the dimensions of the expanded telescopic cylinder, but enables the buildup of further spring pressure, with which the pressure element rests against the base body.

[0020] Or the spring-loaded pressure element can, for example, be pivotally mounted so that it can be pivoted into its use or active position and come into contact with the inner wall surface of the base body. As the pivoting movement continues, the pressure element is increasingly compressed against the spring action and builds up a correspondingly increasing contact pressure until it is in its active position, in which the installation element is securely held within the base body. The pivoting movement can be carried out from outside the shaft structure, for example using a shaft hook that is commonly found in practice. By means of this hook, the pressure element can either be pressed from top to bottom or can be gripped underneath and lifted if the pivoting movement occurs around a horizontal pivot axis.

[0021] The pressure element is preferably designed as a substantially U-shaped pressure bar. It is configured to assume a horizontal use position within the base body. This applies regardless of whether the pressure element contains rigid or spring-loaded components. Particularly preferably, the pressure element is articulated and movable between a horizontal use position and an upright transport position.

[0022] The clamping bracket is designed so that when in its operating or use position, it is positioned horizontally within the base body of the shaft structure. The U-shaped configuration of the bracket thus encloses a free space in the cross-section of the shaft structure, allowing access from top to bottom in the shaft.

[0023] In one embodiment, the U-shaped clamping bracket itself can serve as a spring element. With appropriate shaping, dimensioning, and material selection, the spring effect is achieved by the clamping bracket itself. The reduced number of components impacts the production of the installation element in an economically advantageous way.

[0024] For example, if the manhole structure has a sludge trap at the bottom, as is often the case with street gullies, a flushing hose or suction hose can be routed from the top inlet of the street gully down into the sludge trap, passing through the space enclosed by the U-shaped clamping bracket, allowing maintenance work on the manhole structure to be performed without having to dismantle the installation element. This is particularly advantageous when different service companies perform different maintenance work on the manhole structure and the installation element.

[0025] Furthermore, regardless of whether the pressure element contains rigid or spring-loaded components, the pressure element can be pivotally mounted in one embodiment, so that it can assume a horizontal operating or use position on the one hand, and can be pivoted into an upright transport position on the other. When the pressure bar is in the upright transport position, the installation element can be inserted into the shaft structure from above or pulled out of the shaft structure upwards, even if the diameter of an upper access opening is smaller than the inner diameter of the base body of the shaft structure.

[0026] In one embodiment, the shaft structure comprises structural elements that are designed as standard parts according to DIN 4052, DIN 4034, or DIN EN 1917. These apply to road gullies and shafts. In practice, both road gullies and shafts often have components that form the inlets and outlets of the shaft structure, with these components being designed as standard parts according to DIN 4052. The invention is based on the consideration that this will be the case for the majority of shaft structures.Accordingly, the installation element can be adapted to such standard parts with regard to its basic dimensioning and in particular with regard to the design of the pressure element, so that on the one hand the installation element can be easily inserted into the shaft structure through corresponding openings or removed from the shaft structure, and so that on the other hand the installation element can be effectively clamped and securely held within the shaft structure because the effect of the pressure element is ensured by a corresponding adaptation to the inner diameter of the base body of the shaft structure.

[0027] Preferably, at least two pressure elements are arranged obliquely to one another and configured to achieve a resulting pressure force vector that effects the contact force for the installation element in a predetermined effective direction. Preferably, the installation element is configured to create a flow connection with an inlet or outlet opening of the shaft structure, wherein this inlet or outlet opening opens laterally into the shaft structure. The pressure element is designed such that, during use, it is supported either at the point in the shaft structure opposite the inlet or outlet opening, or that it is supported in the shaft structure in such a way that the resulting pressure force vector presses the installation element in the same way in the region of the inlet or outlet opening.In this way, the optimal direction of the contact forces ensures an optimally sealed connection between the installation element and the inlet or outlet opening. For example, if the installation element is designed as a filter, the tight connection to the outlet opening of the shaft structure ensures that unfiltered water cannot bypass the filter and enter the outlet opening.

[0028] In a preferred embodiment, the installation element extends partially into the inlet and / or outlet, in particular of the shaft structure. For example, it protrudes into the inlet or outlet with a pipe socket, or it rests with a tongue at least on the lower circumferential section of the inlet or outlet. In addition to the frictional connection achieved by the clamping or pressing forces acting according to the invention, a positive connection is thus created, which contributes to reliably holding the installation element in its position even when this position is located at a distance above the shaft floor.

[0029] The installation element is preferably configured to form a backflow flap, an internal drop, or an odor trap of the shaft structure during use and / or to form a plug that closes an inlet or outlet of the shaft structure. The installation element is preferably configured to form a flow restrictor during use, which, as a plug, closes an inlet or outlet of the shaft structure or, as a throttle, only partially closes an inlet or outlet of the shaft structure. The installation element particularly preferably comprises a filter and is configured so that, during use, water flows through the filter to an outlet of the shaft structure.

[0030] The object is further achieved according to the invention by using an installation element. The installation element is designed, during use in a shaft structure, to connect from the inside to a wall section of a tubular base body of the shaft structure, referred to as the contact point. The installation element is provided with an element that is designed, during use, to be supported in the shaft structure on the side opposite the contact point in such a way that the installation element is held stationary in the shaft structure at the contact point. The installation element is used at an inlet or outlet of the shaft structure that opens laterally into the shaft structure. The installation element has a connection opening that, during use, is in flow connection with the inlet or outlet. The aforementioned element is designed as a pressure element.

[0031] Embodiments of the invention are explained in more detail below using purely schematic representations. Fig. 1 a vertical section through a shaft structure designed as a street drain, wherein an installation element designed as a filter is also shown in section, Fig. 2 a horizontal section through the street drain and the installation element of Fig. 1 at the level of the outlet of the street gully, Fig. 3 to 5Views from different directions of the installation element of the Fig. 1 , Fig. 6 to 8Views from different viewing directions of a second embodiment of an installation element according to the invention, which is designed as a throttle, and Fig. 9 to 11Views from different viewing directions of a third embodiment of an installation element according to the invention, which is designed as an odor trap.

[0032] In Fig. 11 shows a street drain 1 in vertical section, comprising a cylindrical base body 2 made up of several segments. On the cylindrical part of the base body 2 there is a conical and eccentric attachment 3 which has an opening on its top side as an inlet 4 through which surface water can flow into the base body 2. The water initially collects in the interior of the base body 2 and, when the level is sufficient, flows out of an outlet 5 of the base body 2, with a sewer pipe (not shown in the drawing) connecting to the outlet 5. Below the outlet 5, the lowest area in the interior of the base body 2 forms a sludge trap 6, in which heavier components such as grit, sand and the like, which have entered the base body 2 with the surface water, settle.

[0033] An installation element 7, which is designed as a filter, is arranged in the street drain 1. The filter has an elongated cross-section in a horizontal plane and a larger dimension transverse to the illustrated section plane than within the section plane of the Fig. 1 , as in particular from Fig. 2 is visible, so that the installation element 7 can be called a flat filter.

[0034] Fig. 1 and Fig. 2 make it clear that the design of the installation element 7 as a flat filter leaves a sufficiently large free cross-section inside the base body 2 to create a channel 8 through which a flushing hose can be guided from the inlet 4 into the sludge trap 6, so that the street drain 1 can be flushed and vacuumed without having to dismantle the installation element 7, i.e. without having to remove it from the base body 2.

[0035] The filter has a substrate chamber 9 filled with a filter material, which in the illustrated embodiment of the installation element 7 is designed as a substrate that is both mechanically and biologically effective. Surface water, which has flowed into the base body 2 through the inlet 4, passes through the gratings within the base body 2, passes through the substrate chamber 9, and reaches a flow channel for filtered water, into a clean chamber 12 of the installation element 7, and from there into the outlet 5 of the street drain 1.

[0036] The filter further comprises an emergency overflow 14, which represents a flow path which, bypassing the substrate chamber 9, leads from an inlet opening 15 via a partition wall 16 and also to the clean chamber 12 of the filter.

[0037] Under normal rainfall conditions, the hydraulic capacity of the installation element 7 is sufficient to allow the water within the base body 2 to rise only to the point where the liquid level is at most at the height of the upper edge of the outlet 5. However, with a larger volume flow entering the street drain 1, the level within the base body 2 rises above the height of the upper edge of the outlet 5. Water located in the emergency overflow 14 reaches the upper edge of the partition wall 16, above the highest point of the emergency overflow 14. Fundamentally, the flow behavior of the water is determined not by the upper boundary of the emergency overflow 14, for example, in the form of the filter housing, but by the lower boundary of the emergency overflow 14. In this respect, in the illustrated embodiment of the installation element 7, the upper edge of the partition wall 16 forms the highest point of the emergency overflow 14.Deviating from the illustrated embodiment, the inlet opening 15 of the emergency overflow 14 can be arranged lower than shown or at least have a lower upper edge, so that a greater distance is created between the inlet opening 15 and the lower edge of the outlet 5 than in . Fig. 1 shown.

[0038] In the illustrated embodiment of the Fig. 1 and 2 An odor trap is also created for the street drain 1, so that no gases from the sewer system can reach the inlet 4 of the street drain 1. A flow connection for gases that could otherwise flow from the outlet 5 to the inlet 4 is interrupted by the water standing in the filter, which is located in the substrate chamber 9 and in the emergency overflow 14.

[0039] A pull rod 17 including eyelet 18 serves to handle the installation element 7 and to insert it into the base body 2 or to remove it from the base body 2.

[0040] From the Fig. 1 to 5 It can be seen that the installation element 7 has a collar 20 which, during use, rests against the inside of the wall of the base body 2 in such a way that a tongue 21 extends into the outlet 5 of the base body 2. To hold the installation element 7 in this position of use, a pressure element is shown which is designed as a pressure bracket 22 which is pivotally mounted on the housing of the filter via joints 23.

[0041] The Fig. 1 to 5show the pressure bracket 22 in its horizontal use position, in which it is supported on the base body 2 opposite the outlet 5 and from which it can be pivoted into an upright transport position. In the upright transport position, the pressure bracket 22 does not obstruct when the installation element 7 is to be introduced into a street drain via the inlet 4 or removed from it for maintenance purposes. In particular, the removal of the filter, namely its tongue 21, from the outlet 5 is only made possible by the pressure bracket 22 being moved from its horizontal use position and the space visible to the left of the filter housing, including the channel 8 running there, being used as a movement space to remove the filter from the outlet 5.

[0042] As is particularly evident from Fig. 2 and 4As can be seen, the pressure bracket 22 is U-shaped and has a spring-loaded pressure piece 24 opposite the collar 20 and the tongue 21, which extends through the pressure bracket 22. The dimensions of the pressure bracket 22 and the pressure piece 24 are matched to the inner diameter of the base body 2 in such a way that the pressure piece 24 is pressed against the spring action into the space surrounded by the pressure bracket 22 when the pressure bracket 22 is in its operative or usage position. Accordingly, in its usage position, the filter is supported on one side by the pressure bracket 22 and the pressure piece 24 on the base body 2, so that on the opposite side the collar 20 is pressed against the wall of the base body 2 and the filter is secured against slipping downwards by means of the tongue 21, thus fixing the installation element 7 in its usage position.

[0043] The spring force by means of which the installation element 7 is held in the base body 2 by generating a tension in its predetermined position of use is generated by a specially provided spring element, which is indicated in the drawings as a helical spring and acts between the pressure piece 24 and the pressure bracket 22.

[0044] Deviating from the illustrated embodiment, the pressure bracket 22 itself can provide the desired spring action by dispensing with such a spring designed as a separate component. For example, the central section of the pressure bracket 22, which in the illustrated embodiment carries the spring and the pressure piece 24, can, deviating from its illustrated, straight line, have a bulge that extends to the base body 2 and thus forms the pressure piece 24 abutting the base body 2. The bulge in the course of the essentially U-shaped pressure bracket 22, as well as suitable dimensioning and material selection of the pressure bracket 22, provide the desired spring forces that ensure the secure hold of the installation element 7 in the base body 2.

[0045] The end of the pressure piece 24 remote from the pressure bar 22, which in the use position rests against the inside of the base body 2, is designed with a spherical section-shaped surface in the illustrated embodiment. The pressure bar 22 can be pivoted from an upright, downward-hanging, or upward-standing transport position into the illustrated use position, wherein the pressure piece 24 comes into contact with the inner surface of the base body 2. The further pivoting movement of the pressure bar 22 results in the pressure piece 24 being pressed deeper into the pressure bar 22 against the spring action, and at the same time the domed, rounded end of the pressure piece 24 can slide over the surface of the base body 2 without tilting until the pressure bar 22 is in its use position.

[0046] The Fig. 1 to 5The illustrated embodiment of the installation element 7 simply connects to the existing internal geometry of the street drain 1. Thus, the filter can be installed in an existing street drain 1, for example, retrofitted, without the street drain 1 having to be structurally modified or reworked.

[0047] Fig. 5 shows the filter with a view of its Fig. 3 side shown on the right, so that the collar 20 and the tongue 21 are visible from the front.

[0048] The embodiment of the Fig. 6 to 8 shows a built-in element 7, which, like the filter of the Fig. 3 to 5a collar 20 and a tongue 21, as well as a pressure bracket 22, which is pivotable at one end about joints 23 and has a spring-loaded pressure piece 24 at its opposite end. However, this installation element 7 is not designed as a filter; rather, the collar 20, together with a throttle disc 25, forms a flow restrictor, which, as a throttle, allows water flow only through a throttle opening 31 arranged in the throttle disc 25.

[0049] Fig. 6 shows the throttle in a view from the same direction as Fig. 5 , Fig. 7 shows the installation element 7 in a side view similar to the Fig. 3 , and Fig. 8 shows it in a top view similar to the Fig. 4 . The installation element 7 has, in contrast to the filter of the Fig. 3 to 5does not have a large-volume filter housing, but rather a support structure designed as a frame or rack, on which the collar 20, the tongue 21, the pressure bracket 22 and the throttle plate 25 are held. This support structure forms a support bracket 26, on which the pressure bracket 22 is mounted by means of the joints 23, and on which the entire installation element 7 can also be handled, for example by means of a shaft hook, so that this embodiment of an installation element 7 does not have an eyelet 18, as in the filter of the Fig. 3 to 5 is present.

[0050] Fig. 9 shows a plan view of a further embodiment of an installation element 7 which forms an odor trap when it is connected in use to an outlet 5 of a shaft structure such as the street drain 1 of the Fig. 1 and 2 connects. Fig. 10 shows the same installation element 7 as a vertical section along the line X - X in Fig. 9, and Fig. 11shows a top view of the installation element 7 of the Figs. 9 and 10 .

[0051] A pipe bend 27 extends from a connection opening 28 in an arc downwards to a dip opening 29. With the connection opening 28, the installation element 7 connects in use to a Fig. 9 to 11 not shown outlet 5 of a shaft structure. Since the lower edge of the outlet 5 defines the level within the shaft structure at which water can flow out of the shaft structure, water is present within the shaft structure up to the height of this lower edge of the outlet 5. The pipe bend 27 is therefore immersed with its lower portion, which is located below the lower edge of the outlet 5, into the water present in the shaft structure, so that this lower portion forms a dip pipe 30 which extends downwards to the dip opening 29.

[0052] During operation, the water level within the shaft structure rises, for example when water flows into the shaft structure due to precipitation. Accordingly, the water level within the immersion pipe 30 also rises, allowing water to flow from the pipe bend 27 into the outlet 5 of the shaft structure and thus out of the shaft structure and, for example, into a sewer pipe. However, air located within the sewer pipe cannot flow into the interior of the shaft structure. Rather, the water in the immersion pipe 30 forms an odor trap that prevents this air flow, preventing air and the associated odors from escaping from the sewer pipe into the shaft structure and through its inlet 4 into other pipe sections or outside. Reference symbol:

[0053] 1Street gully 2Main body 3Top 4Inlet 5Outlet 6Sludge trap 7Installation element 8Channel 9Substrate chamber 12Clean room 14Emergency overflow 15Inlet opening 16Partition wall 17Pull rod 18Eyelet 20Collar 21Tent 22Pressure bracket 23Joint 24Pressure piece 25Throttling disc 26Support bracket 27Pipe bend 28Connection opening 29Submerged opening 30Submerged pipe 31Throttling opening

Claims

1. Installation element (7) which, when in use in a shaft structure, is designed to connect from the inside to a wall section of a tubular base body (2) of the shaft structure, referred to as the contact point, wherein the installation element (7) is provided with a pressure element which is designed to be supported in use on the side opposite the contact point in the shaft structure in such a way that the installation element (7) is pressed against the contact point and held stationary in the shaft structure, characterized by that the installation element (7) has a connection opening (28) which, in use, is in flow connection with an inlet or outlet (4, 5) of the shaft structure, which opens laterally into the shaft structure, and that the pressure element is designed to be supported in the shaft structure opposite the inlet or outlet (4, 5) during use.

2. Installation element according to claim 1, characterized by thatthe pressure element is designed as a substantially U-shaped pressure bracket (22) which is adapted to assume a lying use position in the base body (2).

3. Installation element according to claim 1 or 2, characterized by that the pressure element is articulated and can be moved between a lying use position and an upright transport position.

4. Installation element according to one of the preceding claims, characterized by that the shaft structure has structural elements that are designed as standard parts according to DIN 4052, DIN 4034 or DIN EN 1917.

5. Installation element according to one of the preceding claims, characterized by that the pressure element can be moved into its operating position against the force of a spring.

6. Installation element according to claim 5, characterized by that a separate spring element forms the spring.

7. Installation element according to claim 5, characterized by thatthe installation element (7) has an elastically deformable seal which forms the spring and runs around the inlet or outlet (4, 5).

8. Installation element according to claims 2 and 5, characterized by that the U-shaped pressure bracket itself forms the spring.

9. Installation element according to at least two of claims 6 to 8, characterized by that the spring is formed by a combination of at least two of the following spring-acting components: seal, pressure bracket (22) and / or separate spring element.

10. Installation element according to one of claims 5 to 9, characterized by that the pressure element has a spring-loaded pressure piece (24) which is designed to bear against the base body (2) under spring tension during use.

11. Installation element according to one of the preceding claims, characterized by thatat least two pressure elements are arranged obliquely to one another and are designed to achieve a resulting pressure force vector which effects the contact force for the installation element (7) in a predetermined effective direction.

12. Installation element according to one of the preceding claims, characterized by that the installation element (7) extends partially into the inlet or outlet (4, 5).

13. Installation element according to one of the preceding claims, characterized by that the installation element (7) is designed to form a backflow flap of the shaft structure during use.

14. Installation element according to one of claims 1 to 12, characterized by that the installation element (7) is designed to form an internal drop in the shaft structure during use.

15. Installation element according to one of claims 1 to 12, characterized by thatthe installation element (7) is designed to form an odor trap of the shaft structure during use.

16. Installation element according to one of claims 1 to 12, characterized by that the installation element (7) is designed to form a flow restrictor in use which, as a plug, closes an inlet or outlet (4, 5) of the shaft structure or, as a throttle, only partially closes an inlet or outlet (4, 5) of the shaft structure.

17. Installation element according to one of claims 1 to 12, characterized by that the installation element (7) has a filter and is designed so that, in use, water flows through the filter to an outlet (5) of the shaft structure.

18. Use of an installation element (7), • which is designed to connect, during use in a shaft structure, from the inside to a wall section, referred to as the contact point, of a tubular base body (2) of the shaft structure, • wherein the installation element (7) is provided with an element which is designed to be supported, during use, on the side opposite the contact point in the shaft structure in such a way that the installation element (7) is held stationary in the shaft structure at the contact point, on an inlet or outlet (4, 5) of the shaft structure opening laterally into the shaft structure, • wherein the installation element (7) has a connection opening (28) which, during use, is in flow connection with the inlet or outlet (4, 5) • and the mentioned element is designed as a pressure element.

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