DE102018117464A1 - Connection system, cover part and manufacturing method - Google Patents

Abstract

The invention relates to a connection system for civil engineering, in particular civil engineering, comprising a cover part (10) with a connection element (11) and at least one shaft element (12) with at least one counter-connection element (13), the cover part (10) and the shaft element (12) can be connected by the connecting element (11) and the counter-connecting element (13). The connecting element (11) is made of plastic and is integrally connected to an inside of the cover part (10).

Description

The invention relates to a connection system for civil engineering, in particular civil engineering, with the features of the concept of claim 1. Such a connection system is, for example, from EP 0 826 834 A1 known. The invention further relates to a cover part for construction and a method for producing a connection system.

The known connection system is a height-adjustable manhole cover. This includes a manhole cover, which is held in a ring with a threaded flange. The threaded flange has an external thread that is screwed to an internal thread of a shaft ring. The height of the manhole cover can be adjusted by means of the screwing depth.

The two threads for adjusting the height are inserted directly into the walls of the threaded flange or the shaft ring.

The invention is based on the object of improving the known connection system with a view to tightness and simple manufacture. The invention is also based on the object of specifying a cover part for construction and a method for producing a connection system.

According to the invention, this object is achieved with regard to the connection system by the subject matter of claim 1, with regard to the cover part by the subject matter of claim 11 and with regard to the method by the subject matter of claim 12.

Specifically, the object is achieved by a connection system for civil engineering, in particular civil engineering, which has a cover part with a connection element and at least one shaft element with at least one counter-connection element. The cover part and the shaft element can be connected by the connecting element and the counter-connecting element or are connected in use. The connecting element is made of plastic and is integrally connected to an inside of the cover part.

The invention has the advantage that the connecting element can be made of plastic in a simple manner, for example by means of a known injection molding process or another plastic processing process. This makes it possible to produce profiles or contours of the connecting element precisely and quickly. The increased accuracy increases the sealing effect in the area of the connecting element when it is connected to the counter-connecting element of the shaft element. The connecting element is characterized by a light component weight, a high breaking strength and excellent resistance to environmental influences.

The integral connection of the connecting element with the inside of the cover part simplifies production.

The connection system according to the invention is particularly suitable for underground installation.

Preferred embodiments are specified in the subclaims.

For example, the cover part can be a concrete cover plate into which the connecting element is concreted.

The shaft element can be formed from plastic. The counter-connection element is thus also made of plastic, which further simplifies the manufacture of the connection system.

In a further embodiment, the connecting element and the counter-connecting element can be connected to form a positive and / or non-positive connection. The at least one counter-connecting element can have a plurality of latching steps, for engagement by at least one projection of the connecting element. In particular, a bayonet lock can be formed in this way with the connecting element and the counter-connecting element. This embodiment has the advantage that a mechanical and tight connection between the cover part and the shaft element is created. In this sense, a latching step of the counter-connecting element forms a latching position for the at least one projection of the connecting element, in particular in the form of a latching lug.

In the embodiment with the plurality of latching steps and the projection, it is preferably provided that the inner profile of the cover part and of the shaft element are each circular. Alternatively, the connecting element and the counter-connecting element can each comprise a thread, in particular threads corresponding to one another. Other types of connections are also possible.

Furthermore, the plurality of latching steps of the counter-connecting element can have an incline, so that depending on the latching step, different contact pressures can be achieved in connection with the shaft element. When connecting the shaft element with the cover part or others The respective contact pressure between the components can therefore be adjusted as required.

To further improve the tightness, it is possible for a seal to be arranged on the connecting element.

Due to the seal, preferably with a plurality of sealing lips directed downwards, when the shaft element and the cover part or further shaft elements are inserted into one another, the individual components can be sealed against buoyancy by the latching in the latching steps, preferably in the sense of a bayonet lock. A seal with a first sealing plane, in particular in the form of sealing lips on an inside of the seal, and a second sealing plane, in particular in the form of at least one hollow chamber profile of the seal, is preferably provided.

Greater shaft depths can be achieved by arranging the counter-connecting element at one end of the shaft element and a further connecting element at the other end of the shaft element. The further connecting element can be connected to a counter-connecting element of a further shaft element. The further connecting element can have a seal or a further seal.

To limit a connection movement relative between the cover part and / or the shaft element, the cover part and / or the shaft element, in particular in the form of the latching steps of the counter-connection element on the shaft element for the preferred embodiment of a bayonet lock, can each have or form a stop. The cover part and the shaft element can preferably form the stop through an interaction with one another.

The modular construction with a required number of shaft elements, which can be arranged one above the other and which are connected to one another via seals, can advantageously be used to produce a tight overall system.

In the context of the invention, the cover part for construction is claimed as such, that is, independently of the shaft element. In the context of the method according to the invention for producing a connection system for civil engineering, a connection element made of plastic is poured into a cover part and connected with a material bond. The connecting element made of plastic can be connected to a counter-connecting element of a shaft element.

The invention is explained in more detail below with further details with reference to the accompanying schematic drawings using various exemplary embodiments.

• 1 einen Querschnitt eines Abdeckteils nach einem erfindungsgemäßen Ausführungsbeispiel;
• 2 einen Querschnitt eines Abdeckteils mit einem eingeschraubten Schachtelement im eingebauten Zustand;
• 3 einen Querschnitt mehrerer Schachtelemente, die miteinander verschraubt sind;
• 4 einen Querschnitt eines Abdeckteils nach einem weiteren erfindungsgemäßen Ausführungsbeispiel; und
• 5 eine perspektivische Ansicht eines Schachtelements gemäß dem weiteren erfindungsgemäßen Ausführungsbeispiel.

In these show:

• 1 a cross section of a cover part according to an embodiment of the invention;
• 2 a cross section of a cover part with a screwed shaft element in the installed state;
• 3 a cross section of several shaft elements which are screwed together;
• 4 a cross section of a cover part according to another embodiment of the invention; and
• 5 a perspective view of a shaft element according to the further embodiment of the invention.

1 shows a connection system with a cover 10 , With the cover part 10 it is a cover plate, in particular made of concrete. The cover part 10 has a connecting element 11 made of plastic on that with an inside of the cover 10 is cohesively connected. The material of the cover part 10 differs from the material of the connecting element 11 , The cover part is concrete 10 made of concrete, for example polymer concrete or another material. With the plastic of the connecting element 11 it is preferably PE or PP. Other types of plastic are possible.

As in 1 The connection element is easy to see 11 made of plastic around an internal thread that is on the inside of the cover 10 is arranged. At an axial end of the connecting element 11 is a seal 15 arranged which the connecting element 11 against the inside of the cover 10 seals. At the other axial end of the connecting element 11 is a stop 16 trained, which prevents the cover 10 or the shaft element 12 can be screwed through. At the stop 16 another seal is provided.

In 1 is also a shaft element 12 , in particular a shaft ring shown that with the cover 10 connected, in particular screwed. The shaft element points to this 12 a mating connector 13 on that in the embodiment according to 11 is designed as an external thread.

The shaft element 12 including the mating connector 13 is made of plastic, e.g. PE or PP.

2 shows the connection system according to the embodiment of the invention in the installed state. The manhole cover or cover part stands 10 over the surrounding surface (here: concrete on site). Between the cover part 10 and the shaft element 12 is a seal 15 arranged.

For large shaft heights, several shaft elements can be used 12 . 12a . 12b be connected as in 3 shown. Each shaft element points to this 12 . 12a . 12b a connecting element at both ends 11a . 11b or a mating connector 13a . 13b on, each with an additional shaft element 12a . 12b connected, in particular screwed. You can use as many shaft elements as you like 12 . 12a . 12b get connected. With the connecting element 11 . 11a . 11b or the mating connector 13 . 13a . 13b each is a thread. The shaft structure according to 3 comes with a cover 10 according to the embodiment of the invention 1 respectively. 2 connected to form a manhole cover.

In particular, a concrete cover plate of a monolithic steel or concrete container (also possible polymer concrete, other materials are also conceivable) and a concrete screw connection made of plastic, all types of plastic being possible as far as possible. A shaft element made of plastic can be screwed into the concreted screw connection. Both components each have, for example, at least one thread or a counter thread or something similar, such as a bayonet lock, whereby further types of connection are conceivable in order to realize a non-positive connection and possibly a seal which improves the tightness of the connection ( 1 ). A second thread, possibly including a seal, can also be arranged in the shaft element made of plastic, at the other end of the shaft element made of plastic, so that several shaft elements made of plastic can also be screwed together in the case of deeper shafts ( 3 ).

The cover plate can be round or square and can be built in diameters from 200 to 3000 mm or square in similar dimensions and a wall thickness of 150 to 500 mm. The concreted round screw connection in the cover plate is sealed against the concrete using swelling tape or similar.

The round, oval or square shaft element made of plastic is round at least in the area of the screw connection and fits into the screw connection of the cover plate. A stop (either on the shaft element or on the cover plate) prevents it from being screwed down. Depending on the requirements, a seal can be inserted.

The shaft element made of plastic can have a diameter of 200 to 1000 mm or angular from 200 * 200 mm to 1000 * 1000mm. Other diameters or angular shapes are conceivable, whereby the area of the screw connection must always be round.

The shaft elements and cover plates are intended for underground installation.

In 4 is a cross section of a cover member 10 and in 5 a perspective view of a shaft element 12 shown according to a further embodiment of the invention.

The cover part 10 has on its inner peripheral side the integrally connected connecting element 11 on. At an axial end of the connecting element 11 is the seal 15 intended.

The seal 15 has a plurality of sealing lips and a hollow chamber profile, in particular for sealing an inserted shaft element 12 (see. 3 ). The sealing lips are in accordance 4 directed downward and on an inner peripheral side of the seal 15 arranged. The sealing lips can thus be understood as a first sealing level. The hollow chamber profile arranged above the sealing lips represents a second sealing level in order to achieve a seal, in particular a buoyancy-proof seal, of the components connected to one another.

Furthermore, the cover part 10 in connection with the connecting element 11 at least a head start 11.1 on. According to 4 are two tabs in total 11.1 formed, which have a (detent) nose-shaped geometry.

In 5 it can be seen that the shaft element 12 with a mating connector 13 in the form of a recess with several locking levels 13.1 is trained. Overall, according to 5 four stops 13 provided so that there are three locking positions.

The mating connector 13 is with the locking steps 13.1 preferably corresponding to the projection 11.1 of the connecting element 11 educated. In this way, the connecting element 11 with the at least one lead 11.1 and the mating connector 13 with the at least one rest step 13.1 a bayonet lock for connecting the cover part 10 with the shaft element 12 to be provided.

Alternatively, several shaft elements can be connected to one another or to one another in the same shape.

Furthermore, you can use the individual locking levels 13.1 the mating connector 13 be inclined away so that along the several rest stages 13.1 an increasing tension when connecting the connecting element 11 with the mating connector 13 can take place.

By forming a bayonet lock using the counter-connecting element 13 and the connecting element 11 in the sense of the embodiment according to the invention 4 and 5 is also a stop 16 provided. The attack 16 or the function of the stop 16 is particularly due to the mating connector 13 along the several rest stages 13.1 according to 5 educated.

In this way, a secure bracing and fastening of the shaft element 12 with the cover element 10 or alternatively with additional shaft elements 12a . 12b be ensured.

In this sense is the formation of a bayonet lock with the projection 11.1 of the connecting element 11 and the preferably several locking levels 13.1 of the mating connector 13 according to 4 and 5 generally on the connection of several shaft elements 12 . 12a . 12b or the connection of a shaft element 12 with a cover 10 applicable.

It can be a modular structure for the required and appropriate composition of manhole elements 12 , especially in combination with a cover 10 , are provided, using the associated seal 15 Furthermore, the tightness of the overall system is guaranteed.

LIST OF REFERENCE NUMBERS

10

cover

11, 11a, 11b

fasteners

11.1

head Start

12, 12a, 12b

manhole elements

13, 13a, 13b

Against fasteners

13.1

catching step

14

thread

15

poetry

16

attack

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included 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

• EP 0826834 A1 [0001]

Claims (12)

Connection system for civil engineering, in particular civil engineering, comprising a cover part (10) with a connection element (11) and at least one shaft element (12) with at least one counter-connection element (13), the cover part (10) and the shaft element (12) being connected by the connection element ( 11) and the counter-connecting element (13) can be connected, characterized in that the connecting element (11) is made of plastic and is integrally connected to an inside of the cover part (10). Connection system according to Claim 1 characterized in that the cover part (10) is a concrete cover plate into which the connecting element (11) is concreted. Connection system according to Claim 1 or 2 characterized in that the shaft element (12) is formed from plastic. Connection system according to one of the preceding claims, characterized in that the connecting element (11) and the counter-connecting element (13) can be connected to form a positive and / or non-positive connection. Connection system according to one of the preceding claims, characterized in that the at least one counter-connecting element (13) has a plurality of latching steps (13.1) for engagement by at least one projection (11.1) of the connecting element (11). Connection system according to Claim 5 characterized in that the plurality of latching steps (13.1) of the counter-connecting element (13) have or form an incline so that depending on the latching step (13.1) different contact pressures can be achieved in connection with the shaft element (12). Connection system according to one of the preceding claims, characterized in that a seal (15) is arranged on the connecting element (11). Connection system according to one of the preceding claims, characterized in that the counter-connection element (13) is arranged at one end of the shaft element (12) and a further connection element (11a) is arranged at the other end of the shaft element (12), which has a counter-connection element (13a) of another Shaft element (12a) is connectable. Connection system according to Claim 8 characterized in that the further connecting element (11a) has a seal. Connection system according to one of the preceding claims, characterized in that the cover part (10) and / or the shaft element (12) have a stop (16) for limiting a connection movement relative between the cover part (10) and / or the shaft element (12). Cover part (10) for construction with a connecting element (11) for connection to a shaft element (12) having a counter-connecting element (13), characterized in that the connecting element (11) is made of plastic and is integrally connected to the cover part (10) is. Method for producing a connection system for construction, in which a connection element (11) made of plastic, which can be connected to a counter-connection element (13) of a shaft element (12), is poured into a cover part (10) and connected in a materially bonded manner.

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