DE102015203005B4 - Process for producing a manhole base body with an inlet and outlet angled relative to one another - Google Patents

Abstract

Method for producing a manhole base body (17) for an outlet manhole, the manhole base body (17) - a middle part (2b ', 2a "), - an inlet opening into the middle part (2b', 2a") Connection (3b) with a first central axis (6b), - a drain connection (4a) opening out from the central part (2b ', 2a ") with a second central axis (7a) and - one out of the central part (2b ', 2a ") concentrically upward to a third central axis opening (5a, 5b) for a shaft extension, and wherein the first and second central axes (6b, 7a) in the direction of the third central axis ( 8a, 8b) include an angle of 180 ° -α-β, performing the following method steps: - Selecting a one-piece first exit manhole base body (1a) manufactured by injection molding or rotary molding and one with the first exit manhole base body (1a ) identical one-piece, also by injection molding or rotary molding provided second output shaft base body (1b), each of which - a middle part (2a or 2b), - an inlet connection (3a or 3b) opening into the middle part (2a or 2b) with a first means -Axle (6a or 6b), - a drain connection (4a or 4b) opening out from the central part (2a or 2b) with a second central axis (7a or 7b) and - one from the central part (2a or 2b) to a third central axis (8a or 8b) concentric connection (5a or 5b) for a shaft extension, - Disconnect the connections (5a or 5b) for a shaft extension from the respective Middle part (2a or 2b) by means of a separating cut in a first separating plane (11a or 11b) running perpendicular to the third central axis (8a or 8b), - cutting through the first exit manhole base body (1a) in one with a first center plane (13a) enclosing an angle α, a second parting plane (12a) and the second exit shaft base body (1b) in one with a r second center plane (13b) enclosing an angle β a third separating plane (14b) to two first manhole base parts (1a 'or 1a ") and to two second manhole base parts (1b' or 1b "), - the first and the second central plane (13a, 13b) each perpendicular to the first central axis (6a and 6b) and the second central axis (7a, 7b) and the third central Axis (8a, 8b) receiving plane and-- the second parting plane (12a) and the third parting plane (14b) each take up the third central axis (8a and 8b) and an angle α + β between include each other, whereby the following applies: α = β, - abutting one another in each case on a first manhole base part (1a ") and a second manhole base part (1b ') and welding in the region of the parting planes (12a, 14b) and - abutting on a joint (5a or 5b) for a shaft extension and the welded-together first and second shaft base bodies T hurry (1a ", 1b ') and welding along the first parting plane (11a or 11b).

Description

The invention relates to a method for producing a manhole base body for an outlet manhole.

In the case of infrastructure measures, in particular when entering and exiting motorways, through-passages are required for rainwater transport pipes and / or drainage pipes, which have a manhole base body with an inlet connection, an outlet connection and an upper connection for a shaft Have extension. It is known here to use the manhole base body with only one inlet connection or one outlet connection. A second connection, that is to say an outlet connection or an inlet connection, is then welded on at the desired angle, the shaft base body having been provided with a corresponding opening beforehand. This type of production is relatively complex.

From the US 2008/0141445 A1 A method of the above-mentioned general type is known, wherein the shaft base body has a central part, an inlet connection opening into the central part with a first central axis, an outlet connection opening out of the central part with a second central axis and one has the connection upwards concentrically to a third central axis for a shaft extension, and the first and second central axes form an angle of 180 ° -α-β when viewed in the direction of the third central axis.

The central part has an outlet opening with a first central axis, an outlet opening with a second central axis and a connection concentric from the central part to a third central axis for a shaft extension. The middle part is divided by means of vertical cuts running radially to the central axis and then reassembled in such a way that the connections are arranged at any angle to one another. Here, the middle part of the shaft base body is broken down into pie pieces without connection for a shaft extension, which are then welded together again. This is complex in terms of production technology.

From the DE 20 2012 101 645 U1 it is known to produce manhole bases by injection molding or by rotary molding.

The invention is based on the object of specifying a method of the generic type which enables easier manufacture of a manhole base body with an inlet and outlet angled relative to one another.

This object is achieved in a method of the general type by the features of claim 1. It is achieved by the measures according to the invention that only two exit manhole base bodies are required, which are identical and which preferably have at least mutually parallel central axes of the inlet connection and the outlet connection.

If the inlet connection and the outlet connection have the same nominal widths, the center axes are aligned. If, on the other hand, the inlet connection and the outlet connection have different nominal diameters, then the center axes will usually run parallel to each other, but offset in height. Only two flat separating cuts have to be carried out on each exit shaft base body, namely the separation of the connection for a shaft extension and the cutting through of the middle part of the exit shaft base body, the separating cuts being carried out in separation levels in such a way that that the respective separating plane has an angle with respect to a central plane which corresponds to half the angle by which one connection is to be angled relative to the other connection. This central plane receives the central axis of the central part and is perpendicular to a plane which receives the central axis of the central part and the respective central axis of the inlet connection and the outlet connection. After cutting through the exit manhole base body, the manhole base body parts are, as it were, joined together and welded together and then a connection for an extension shaft is welded on again. Here, starting from two identical one-piece base manholes produced by rotational molding or injection molding, in turn two identical manhole base bodies with inlet and outlet connections angled relative to one another are obtained. If the connections have the same nominal widths, the manhole bases created are identical. If the connections have different nominal diameters, the bends are the same in amount, but in the opposite direction.

Further advantageous embodiments result from the subclaims.

• 1 eine Seiten-Längs-Ansicht eines Ausgangs-Schacht-Grundkörpers entsprechend dem Sichtpfeil I in 3,
• 2 eine Stirn-Ansicht des Schacht-Grundkörpers gemäß dem Sichtpfeil II in 1,
• 3 eine Draufsicht auf den Schacht-Grundkörper gemäß dem Sichtpfeil III in 1,
• 4 einen ersten Ausgangs-Schacht-Grundkörper in zwei erste Schacht-Grundkörper-Teile durchtrenntem Zustand in Draufsicht,
• 5 einen zweiten Ausgangs-Schacht-Grundkörper in zwei zweite Schacht-Grundkörper-Teile durchtrenntem Zustand in Draufsicht,
• 6 ein erstes Schacht-Grundkörper-Teil in mit einem zweiten Schacht-Grundkörper-Teil verschweißte Zustand in Seiten-Längsansicht,
• 7 das Teil gemäß 6 in Draufsicht,
• 8 einen Schacht-Grundkörper nach der Erfindung mit angeschweißtem Anschluss für eine Schacht-Verlängerung in einer Seiten-Längs-Ansicht und
• 9 den Schacht-Grundkörper gemäß 8 in einer Draufsicht.

Further advantages, features and details of the invention result from the following description of an embodiment of the invention with reference to the drawing. It shows:

• 1 a side-longitudinal view of an exit manhole base body according to the arrow I in 3 .
• 2 an end view of the manhole base body according to the arrow II in 1 .
• 3 a plan view of the shaft base body according to the arrow III in 1 .
• 4 a first exit manhole base body in two first part of the manhole base body cut through in plan view,
• 5 a second exit shaft main body in two second shaft main body parts severed state in plan view,
• 6 a first manhole base body part in the state welded to a second manhole base body part in a longitudinal side view,
• 7 the part according to 6 in top view,
• 8th a shaft base body according to the invention with a welded connection for a shaft extension in a side-longitudinal view and
• 9 the manhole base according to 8th in a top view.

One in the 1 to 3 Shown basic outlet body 1a for a through shaft has a central middle section 2a on, into which an inlet connection 3a flows into and out of which a drain connection 4a opens. From the middle part 2a A connection continues to open 5a for a shaft extension to be led upwards. With the connections 3a . 4a . 5a are sleeves or spigot ends, with sleeves shown in the drawing. The connections 3a . 4a are each coaxial to a central axis 6a respectively. 7a formed, the two axes in the illustrated embodiment 6a and 7a cursed with each other. The two central axes 6a . 7a in any case run parallel to each other without being aligned when the two connections 3a and 4a have different nominal sizes. The middle part 2a and the connection 5a for a shaft extension have a common central axis 8a on that is perpendicular to the central axes 6a respectively. 7a runs and lies with them on a common level. The middle part 2a is - like that in particular 2 and 3 can be recognized - in that not from the inlet connection 3a and the drain connection 4a covered area rotationally symmetrical to the central axis 8a educated. In the present case, it is a spherical shape. The middle-point 9a of the spherical area of the middle part 2a is in the 1 and 2 recognizable. The middle part 2a goes with a transition area designed as a constriction 10a in the port 5a for a shaft extension over.

As for the process to be described below, there are two identical basic output shaft bodies 1a . 1b are needed in the 1 to 3 in each case also the reference symbols 1b . 2 B ... shown in brackets. The exit manhole base body 1a . 1b are made by rotational molding or injection molding.

With two identical exit manhole bases 1a . 1b is from the middle part 2a . 2 B - In the present case in the transition area 10a . 10b between middle part 2a . 2 B and connection 5a . 5b - the connection 5a respectively. 5b separated for a shaft extension, with a cut in each case in a first separation level 11a . 11b that are concentric with the central axis 8a respectively. 8b lies.

Then one of the exit manhole base bodies 1a by means of a parting cut in a second parting plane 12a severed. This second level of separation 12a lies in a common plane with the central axis 8a as it is in 3 is recognizable. This second level of separation 12a closes the central axis with one 8a absorbing and perpendicular to the central axes 6a . 7a trending middle level 13a an angle α. The other manhole base 1b is in a third level 14b severed, which is also the central axis 8b and the one with the middle level 13a identical middle level 13b encloses an angle β for which: α = β, the position of the second parting plane 12a and the third separation level 14b relative to the middle level 13a respectively. 13b is opposite, such as from 3 is clearly recognizable. Related to the respective middle level 13a respectively. 13b The angle α runs counter-clockwise and the angle β runs clockwise.

This severed exit manhole base 1a . 1b are after cutting along the second parting plane 12a and the third separation level 14b in the 4 and 5 shown. The manhole base 1a is in the two manhole base parts 1a ' and 1a " divided while the other manhole base 1b into the two shaft base parts 1b ' and 1b " is severed.

Then, on the one hand, the manhole base parts 1a ' and 1b "and on the other hand the manhole base parts 1a " and 1b ' in the respective separation levels 12a and 14b put together and welded 15 connected with each other. This is in the 6 to 9 only for the manhole base parts 1b ' and 1a " shown.

After welding the respective manhole base parts 1a ' . 1b " respectively. 1a " and 1b ' becomes a previously disconnected connection 5a respectively. 5b for a shaft extension again at the first parting level 11a respectively. 11b by means of a weld seam 16 welded on as in the 8th and 9 is shown.

The in the 8th and 9 Shaft main body shown 17 have inlet connections 3b and drain connections 4a that are angled at an angle α + β. If the other two manhole base parts 1b " and 1a ' are assembled, then a shaft base body - not shown in the drawing - is formed from it, which has the same angle of the inlet connection and the outlet connection in terms of amount, but compared to the illustration in 9 mirrored.

Claims (4)

Method for producing a manhole base body (17) for an outlet manhole, the manhole base body (17) - a middle part (2b ', 2a "), an inlet connection (3b) opening into the central part (2b ', 2a ") with a first central axis (6b), - A drain connection (4a) opening out from the central part (2b ', 2a ") with a second central axis (7a) and a connection (5a, 5b) opening out from the central part (2b ', 2a ") concentrically upwards to a third central axis for a shaft extension, has and wherein the first and the second central axis (6b, 7a), viewed in the direction of the third central axis (8a, 8b), enclose an angle of 180 ° -α-β, using the following method steps: - Selection of a one-piece first output shaft base body (1a) produced by injection molding or rotary molding and a one-piece second output shaft base body (1b) which is also identical to the first output shaft base body (1a), also produced by injection molding or rotary molding, each one - a central part (2a or 2b), an inlet connection (3a or 3b) opening into the central part (2a or 2b) with a first central axis (6a or 6b), - A drain connection (4a or 4b) opening out of the central part (2a or 2b) with a second central axis (7a or 7b) and have a connection (5a or 5b) concentric from the central part (2a or 2b) to a third central axis (8a or 8b) for a shaft extension, - Disconnect the connections (5a or 5b) for a shaft extension from the respective central part (2a or 2b) by means of a separating cut in a first separating plane (11a or 8b) running perpendicular to the third central axis (8a or 8b). 11b) - Cutting through the first exit manhole base body (1a) in a second parting plane (12a) enclosing an angle α with a first central plane (13a) and the second exit manhole base body (1b) in one with a second Middle plane (13b) a third separation plane (14b) enclosing an angle β to two first manhole base parts (1a 'or 1a ") and to two second manhole base parts (1b' or 1b") . - The first and the second center plane (13a, 13b) each perpendicular to the first center axis (6a and 6b) and the second center axis (7a, 7b) and the third center axis (8a , 8b) receiving plane and - The second parting plane (12a) and the third parting plane (14b) each take up the third central axis (8a or 8b) and enclose an angle α + β between them, where: α = β, - Put together a butt joint of a first manhole base part (1a ") and a second manhole base part (1b ') and welding in the area of the parting planes (12a, 14b) and - Put together on a joint (5a or 5b) for a shaft extension and the welded together first and second shaft base parts (1a ", 1b ') and welding along the first parting plane (11a or 11b). Procedure according to Claim 1 , characterized in that the first central axes (6a or 6b) and the second central axes (7a or 7b) run parallel to one another in a plane receiving the third central axis (8a or 8b). Procedure according to Claim 1 or 2 , characterized in that the first central axes (6a and 6b) and the second central axes (7a and 7b) are aligned. Procedure according to one of the Claims 1 to 3 , characterized in that the central part (2a or 2b) of each outlet shaft base body (1a or 1b) is rotationally symmetrical to the third central axis (8a or 8b).

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