DE102019127486A1 - Manhole frame and manhole cover - Google Patents

Abstract

The invention relates to a manhole frame for a manhole in a traffic area with a frame body (10) which has a frame top (11) with an opening (12) for a manhole cover for closing a passage opening (23) of the frame body (10) and a frame bottom (13) ) for resting on a shaft head, the frame body (10) having a receiving space (14) with a transmitting and receiving opening (15) in the frame top (11), an antenna (16) being arranged in the receiving space (14) in this way is that signals can be transmitted and received through the transmission and reception opening (15), the antenna (16) being connected to at least one electrical line (17) which extends from the receiving space (14) into the passage opening (23) of the Frame body (10) extends.

Description

The invention relates to a manhole frame with the features of the preamble of claim 1 and a manhole cover. Such a manhole frame is, for example, from DE 10 2014 113 093 A1 known, which goes back to the applicant.

Covers of manhole structures in traffic areas are usually made of cast iron or concrete or other materials whose material properties act to shield against radio waves. There has therefore been a move towards integrating antennas in the manhole cover in order to wirelessly transmit signals from measuring devices from inside a manhole to the surface of the earth to a readout unit or a data processing unit.

Such a manhole cover is, for example, off WO 2017/171 281 A2 known. The advantage of such a wirelessly functioning manhole cover is that the installation of the system is simple, since there is no need for cabling and the antenna is integrated in the manhole cover. The manhole cover can be lifted off for maintenance work without the cable between the antenna and the measuring devices having to be disconnected before maintenance. If the manhole cover is replaced or stolen, the entire system will no longer function unless the new manhole cover is equipped with a corresponding antenna.

The invention is based on the object of improving a manhole frame of the type mentioned in such a way that a simple and secure line connection between the antenna and any measuring devices or other signal processing devices is achieved, even if the manhole cover is replaced or removed for maintenance work. The invention is also based on the object of specifying a corresponding manhole cover.

According to the invention, this object is achieved by a manhole frame with the feature of claim 1. With a view to the manhole cover, this object is achieved by the subject matter of claim 12.

Specifically, the object is achieved by a manhole frame for a manhole in a traffic area with a frame body which has a frame top with an opening for a manhole cover for closing a passage opening of the frame body. The manhole frame has an underside of the frame for resting on a manhole head. According to the invention, the frame body has a receiving space with a transmitting and receiving opening in the top of the frame. An antenna is arranged in the receiving space in such a way that signals can be transmitted and received through the transmission and reception opening. The antenna is connected to at least one electrical line which extends from the receiving space into the passage opening of the frame body.

The invention has the advantage that the connection between the antenna and the measuring devices or signal processing devices can be permanently installed in the sewer, since in the installed state the manhole frame - in contrast to the manhole cover - is firmly connected to the manhole. The manhole frame according to the invention is more maintenance-friendly than the manhole cover with antenna known in the prior art, since during maintenance it is not necessary to re-insert a manhole cover with antenna or, in the event of the manhole cover being stolen, not have to use a new manhole cover with antenna. The invention is therefore theft-proof. In addition, the invention enables continuous reception and transmission of signals from the shaft even during maintenance work, since the position of the antenna and the connection between the antenna and the measuring devices or signal processing devices are not changed or interrupted. For this purpose, it is provided that the antenna is arranged in a receiving space of the frame body, as a result of which the antenna is integrated into the frame body. The antenna is arranged in the receiving space in such a way that it can transmit and receive through the transmitting and receiving opening of the receiving space, specifically through the transmitting and receiving opening on the frame top side of the frame body. The electrical line of the antenna extends from the receiving space into the passage opening of the frame body, so that the line can be connected directly to the respective measuring devices or signal processing devices if the length is appropriate. Overall, the invention achieves at least the same communication quality between the measuring devices or signal processing devices, the antenna and the further signal processing devices arranged outside the shaft, as is possible with the antennas integrated in the shaft cover known in the prior art.

The manhole frame can be made in a round or angular design, in particular a square design. It is also possible for the passage opening of the frame body and the opening for the manhole cover to be round or square.

Embodiments of the invention are specified in the subclaims.

The antenna can be arranged in the transmission and reception opening and can be flush with the top of the frame. As a result, an essentially flat top side of the frame is created that can be driven on or walked on.

The receiving space can have a holding area in which the antenna is fixed. The holding area can be specially adapted for fastening the antenna, for example by means of a matching geometry between the holding area and the antenna or by other measures.

The attachment of the antenna in the receiving space is particularly simple if the antenna is connected directly to the walls of the holding area.

The holding area can be arranged on the outer edge of the frame body. This has the advantage that the receiving area for the manhole cover is not interrupted by the receiving space.

The receiving space preferably has a mounting area for mounting the antenna, the antenna being mountable through the frame body in the direction of the transmitting and receiving opening. The separation of functions between the holding area and the assembly area means that each area can be optimally adapted. The assembly direction resulting from the arrangement of the assembly area runs in such a way that the antenna is moved through the frame body in the direction of the transmission and reception opening. During assembly, the antenna is therefore moved from the underside of the frame in the direction of the upper side of the frame. In this way it is possible to secure the antenna well against being removed from the manhole frame.

The assembly area preferably forms a passage which connects the receiving space and the passage opening of the frame body and in which the line is arranged. The assembly area has a double function. On the one hand, the installation of the antenna in the frame body is made possible. On the other hand, the line, which is connected to the antenna, is guided out of the frame body into the passage opening through the same opening. A particularly compact design is achieved in this way.

The assembly area can have an access opening which is formed on the inside of the frame body and / or in the underside of the frame. During assembly, the antenna is inserted through the access opening into the assembly area and moved from there into the holding area.

The holding area and the assembly area can be arranged laterally offset or in alignment. This takes into account the geometry of the different frame types.

The antenna can preferably be mounted from above through the transmission and reception opening. This has the advantage that the antenna can be installed subsequently, i.e. after the manhole frame has been inserted. The direction indication "from above" refers to the installation position of the manhole frame.

In a further preferred embodiment, the antenna is fixed in the receiving space, specifically in the holding area, for example by a screw connection between the antenna and the receiving space or the holding area. Additionally or alternatively, the antenna can be cast in the receiving space or the holding area. A plastic material known per se can be used as the potting compound. The fixation (for example screwing or potting) is disclosed and claimed both in connection with the assembly from above and with the assembly through the assembly area.

In a preferred embodiment, the frame body comprises a composite body, with a first frame section made of concrete, polymer concrete or a polymer material in the area of the frame bottom and a second frame section made of cast iron, plastic or sheet metal in the area of the frame top. In this way, for example, plastic-concrete frames can be created that can be combined with a plastic cover to form a manhole cover and are particularly maintenance-free, roadworthy and highly wear-resistant. Other composite bodies for covers made of cast iron are possible (so-called BEGU frames).

Alternatively, the frame body can have a cantilevered edge in the area of the upper side of the frame for resting on a covering of the traffic area. Such frame bodies can be designed for a system that can be rolled in and is available, for example, as a so-called Bituplan system from the applicant.

The invention is explained in more detail with the aid of exemplary embodiments with reference to the attached schematic figures.

• 1 eine perspektivische Ansicht eines Schachtrahmens nach einem erfindungsgemäßen Ausführungsbeispiel, bei dem der Rahmenkörper einen auskragenden Rand aufweist;
• 2 eine Ansicht von unten des Schachtrahmens nach 1;
• 3 einen Schnitt entlang der Linie A-A des Schachtrahmens nach 1;
• 4 eine Detailansicht des Schachtrahmens nach 1 im Bereich der Antenne;
• 5 eine Seitenansicht des Schachtrahmens nach 1;
• 6 eine perspektivische Ansicht eines Schachtrahmens nach einem weiteren erfindungsgemäßen Ausführungsbeispiel, bei dem der Rahmenkörper als Verbundkörper ausgebildet ist;
• 7 eine Ansicht von unten des Schachtrahmens nach 6
• 8 eine Ansicht von oben des Schachtrahmens nach 6
• 9 einen Schnitt entlang der Linie A-A des Schachtrahmens nach 6
• 10 eine Detailansicht der des Schachtrahmens nach 6 im Bereich der Antenne und
• 11 eine Detailansicht des Schachtrahmens nach 6 im Bereich der Antenne von unten.

In these show

• 1 a perspective view of a manhole frame according to an embodiment of the invention, in which the frame body has a cantilevered edge;
• 2 a view from below of the manhole frame according to 1 ;
• 3 a section along the line AA of the manhole frame 1 ;
• 4th a detailed view of the manhole frame according to 1 in the area of the antenna;
• 5 a side view of the manhole frame according to 1 ;
• 6th a perspective view of a manhole frame according to a further embodiment of the invention, in which the frame body is designed as a composite body;
• 7th a view from below of the manhole frame according to 6th
• 8th a view from above of the manhole frame according to 6th
• 9 a section along the line AA of the manhole frame 6th
• 10 a detailed view of the manhole frame according to 6th in the area of the antenna and
• 11 a detailed view of the manhole frame according to 6th in the area of the antenna from below.

1 shows an exemplary embodiment for a manhole frame which, when installed, is located in a manhole in a traffic area, which can be part of a sewer system. Other drainage systems are possible. The manhole frame has a frame body 10 with a frame top 11 and a frame bottom 13th on. The directions “up” and “down” refer to the installed condition of the manhole frame. The top of the frame 11 has an opening 12th on, in which a manhole cover is inserted (not shown). The opening 12th is aligned with a passage opening 23 of the frame body 10 , which is usually closed by the manhole cover when the manhole frame is installed. For this purpose, the manhole cover is usually inserted into the opening 12th used. The underside of the frame 13th forms the support for the shaft head when installed.

As in 1 shown, the frame body 10 in the area of the top of the frame 11 a protruding edge 22nd on. In the installed state, this rests on a covering of the traffic area.

The frame body 10 indicates a recording room 14th on. The recording room 14th is like in the 3 , 4th easy to see with an antenna 16 equipped. The antenna 16 is thereby in the frame body 10 integrated. The recording room 14th has a transmission and reception opening 15th on that in the top of the frame 11 is trained. In other words, it is the top of the frame 11 in the area of the recording room 14th Opened locally and delimits the transmission and reception opening 15th . The antenna 16 is like that in the recording room 14th arranged that these signals through the transmitting and receiving opening 15th can send and receive. In the example according to 1 to 5 is the antenna 16 with their transmitting and receiving area so in the recording room 14th placed that these in the sending and receiving opening 15th of the recording room 14th is arranged. This allows radio signals to pass through the antenna unhindered 16 reach or be sent by this. As in the 3 , 4th shown closes the top of the antenna 16 flush with the top of the frame 11 from. To do this is the antenna 16 in the sending and receiving opening 15th arranged at the level of the frame surface.

The antenna 16 can communicate with measuring devices or other signal processing devices that are located in the duct of the manhole. To do this is the antenna 16 with an electrical line 17th connected. The antenna 16 can with multiple electrical lines 17th be connected. The administration 17th extends, as in the 2 to 4th to see from the recording room 14th out into the passage opening 23 into it. The electrical line 14th is shown as a short line for illustrative reasons. In practice, the line is 17th so long that it can be connected to electrical devices in the duct.

The recording room 14th is according to the example 1 to 5 angular. Other forms are possible (see for example 6th to 11 ). The recording room 14th extends in the radial direction with respect to the frame body 10 and connects the inside of the frame body 10 with the top of the frame 11 . The inside of the frame body 10 limits the passage opening 23 on the perimeter of the frame body 10 .

As in 1 shown, the recording room interrupts 14th the rotationally symmetrical shape of the frame body 10 and stands radially outwards over the circular contour of the inwardly stepped frame underside 13th of the frame body 10 in front. The recording room 14th is located within the outer contour of the protruding edge 22nd . In other words, the receiving space extends 14th in the radial direction between the inside of the frame body 10 and the protruding edge 22nd . This arrangement of the recording room 14th is good in 5 to see.

The geometry of the manhole frame and the receiving space explained above 14th can be transferred from the round manhole frame to an angular, in particular square manhole frame. The receiving space would then be, for example, in the area of one of the edges of the Frame body are located between the inside of the frame body and the outer contour of the edge.

Other arrangements or geometric shapes of the receiving space 14th are possible.

As in the 3 , 4th easy to see shows the recording room 14th a holding area 18th and an assembly area 19th on. The holding area 18th serves to the antenna 16 to be recorded and fixed in operation. The inner contour of the holding area corresponds to this 18th the outer contour of the antenna 19th . In the example according to 3 , 4th is the antenna 16 angular. The holding area is accordingly 16 angular. Other geometries of the antenna 16 and the hold area 18th are possible.

The holding area 18th defines the transmission and reception opening 15th of the recording room 14th .

The antenna 16 is right with the walls of the holding area 18th connected. The connection can, for example, be non-positive and / or cohesive. Other connection options that create a permanent connection are possible. The connection of the antenna 16 with the holding area 18th should be strong enough to withstand the loads that occur when the manhole frame is in operation.

In the example according to 1 to 5 the holding area extends in the radial direction along the entire protruding edge 22nd so that a maximum area for the transmission and reception opening 15th is formed. The outside of the holding area 18th is therefore on the outer edge of the frame body 10 arranged. The holding area closes further radially inwards 18th the opening 12th for the manhole cover. In other words it is in the antenna 16 when installed, arranged at approximately the same height as the manhole cover.

The assembly area 19th who is at the hold area 18th connects, serves to the antenna 16 through the frame body 10 in the hold area 18th to move. This ensures that the antenna 16 in the axial direction from the inside to the outside based on the frame body 10 can be mounted. As a result, a stop can be used that forms the transmission and reception opening 15th limits and prevents the antenna 16 during operation from the outside through the transmission and reception opening 15th from the recording room 14th Will get removed. In the embodiment according to 1 to 5 extends the assembly area 19th essentially perpendicular to the holding area 18th , with the antenna 16 something in the assembly area 19th protrudes. The antenna 16 through the assembly area 19th under the holding area 18th brought and then, for example, with a tool up into the holding area 18th inserted.

The assembly area 19th shows in the example according to 4th an access opening 21 on that on the inside of the frame body 10 is formed so that the receiving space 14th from the passage opening 23 is accessible from. Other arrangements of the access opening 21 , for example directly below the holding area 18th are possible.

The formation of the access opening 21 on the inside of the frame body 10 has the advantage that the assembly area 19th and the access opening 21 as implementation 20th act through which the line 17th from the antenna 16 directly in the area of the passage opening 23 to be led. The administration 17th is thus automatically located below the manhole cover and can thus be easily guided into the manhole and the sewer and connected to the measuring devices and signal processing devices located there.

Variations are also possible here. For example, the implementation 20th in addition to the access opening 21 be trained.

• 6 bis 11 zeigen ein weiteres erfindungsgemäßes Ausführungsbeispiel eines Schachtrahmens, bei dem der Rahmenkörper 10 als Verbundkörper ausgeführt ist. Der Rahmenkörper 10 weist ein Oberteil im Bereich der Rahmenoberseite 11 auf, wobei das Oberteil beispielsweise aus Gusseisen, Kunststoff oder einem Metallblech gebildet ist. Das Unterteil des Rahmenkörpers 10 ist im Bereich der Rahmenunterseite 13 ausgebildet und kann aus Beton, Polymerbeton oder einem Polymermaterial hergestellt sein. Das Unterteil im Bereich der Rahmenunterseite 13 kann auch als erster Rahmenabschnitt und das Oberteil im Bereich der Rahmenoberseite 11 als zweiter Rahmenabschnitt bezeichnet werden. Die Geometrie des Rahmenkörpers 10 gemäß den 6 bis 11 unterscheidet sich von der Geometrie des Rahmenkörpers 10 gemäß den 1 bis 5 insofern, als der Rahmenkörper 10 auf der Rahmenunterseite 13 keine gestufte Kontur, wie bei dem Schachtrahmen gemäß 1 bis 5, sondern eine durchgehend geschlossene ringförmige Kontur aufweist.

The one in the 1 to 5 The manhole frame shown is round. Angular designs of the manhole frame are possible.

• 6th to 11 show a further embodiment of a manhole frame according to the invention, in which the frame body 10 is designed as a composite body. The frame body 10 has an upper part in the area of the top of the frame 11 on, wherein the upper part is formed, for example, from cast iron, plastic or sheet metal. The lower part of the frame body 10 is in the area of the underside of the frame 13th and can be made of concrete, polymer concrete or a polymer material. The lower part in the area of the underside of the frame 13th can also be used as the first frame section and the upper part in the area of the top of the frame 11 referred to as the second frame section. The geometry of the frame body 10 according to the 6th to 11 differs from the geometry of the frame body 10 according to the 1 to 5 insofar as the frame body 10 on the underside of the frame 13th no stepped contour, as in the case of the manhole frame 1 to 5 , but has a continuously closed ring-shaped contour.

Both types of manhole frames are known as such.

The recording room 14th for the manhole frame according to 6th to 11 is cylindrical educated. The antenna arranged in it is also corresponding 16 cylindrical. As in the 9 , 10 and 11 The recording room is easy to see 14th a holding area 18th on where the cylindrical antenna 16 is arranged. The holding area 18th is like in 8th shown, radially outward based on the opening 12th arranged for the manhole cover. The assembly area 19th is in this embodiment in alignment with the holding area 18th trained so that the antenna 16 from below simply into the holding area 18th can be inserted, as in 10 shown by the arrow. The implementation 20th is like in 11 to see through an opening extending in the radial direction on the underside of the frame 13th of the frame body 10 educated. The administration 17th is from the bottom of the antenna 16 through the breakthrough 20th into the passage opening 23 of the manhole frame. Here, too, the line briefly shown for graphic reasons 17th is so long in practice that it can be connected to a measuring device or a signal processing device.

List of reference symbols

10

Frame body

11

Frame top

12th

opening

13th

Frame underside

14th

Recording room

15th

Sending and receiving opening

16

antenna

17th

management

18th

Holding area

19th

Assembly area

20th

execution

21

Access opening

22nd

edge

23

Passage opening

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102014113093 A1 [0001]
• WO 2017/171281 A2 [0003]

Claims (13)

Manhole frame for a manhole in a traffic area with a frame body (10) which has a frame top (11) with an opening (12) for a manhole cover to close a passage opening (23) of the frame body (10) and a frame bottom (13) for support having a shaft head, characterized in that the frame body (10) has a receiving space (14) with a transmitting and receiving opening (15) in the frame top (11), an antenna (16) being arranged in the receiving space (14) in this way that signals can be transmitted and received through the transmission and reception opening (15), the antenna (16) being connected to at least one electrical line (17) which extends from the receiving space (14) into the passage opening (23) of the frame body (10) extends. Manhole frame Claim 1 characterized in that the antenna (16) is arranged in the transmission and reception opening (15) and is flush with the frame top (11). Manhole frame Claim 1 or 2 characterized in that the receiving space (14) has a holding area (18) in which the antenna (16) is fixed. Manhole frame Claim 3 characterized in that the antenna (16) is directly connected to the walls of the holding area (18). Manhole frame Claim 3 or 4th characterized in that the holding area (18) is arranged on the outer edge of the frame body (10). Manhole frame according to one of the preceding claims, characterized in that the receiving space (14) has a mounting area (19) for mounting the antenna (16), the antenna (16) passing through the frame body (10) in the direction of the transmitting and receiving opening (15) ) is mountable. Manhole frame Claim 6 characterized in that the assembly area (19) forms a passage (20) which connects the receiving space (14) and the passage opening (23) of the frame body (10) and in which the line (17) is arranged. Manhole frame Claim 6 or 7th characterized in that the assembly area (19) has an access opening (21) which is formed on the inside of the frame body (10) and / or in the frame underside (13). Manhole frame according to one of the Claims 6 to 8th characterized in that the holding area (18) and the assembly area (19) are laterally offset or arranged in alignment. Manhole frame according to one of the preceding claims, characterized in that the antenna (16) can be mounted from above through the transmitting and receiving opening (15). Manhole frame according to one of the preceding claims, characterized in that the frame body (10) comprises a composite body, a first frame section made of concrete, polymer concrete or a polymer material in the area of the frame bottom (13) and a second frame section made of cast iron in the area of the frame top (11) , Plastic or sheet metal is formed. Manhole frame according to one of the Claims 1 to 9 characterized in that the frame body (10) has a protruding edge (22) in the area of the frame top side (11) for resting on a pavement of the traffic area. Manhole cover with a manhole frame according to one of the preceding claims and a manhole cover.

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