Shaped piece of sewer pipe

 

(57) Abstract:

The invention relates to structures made of polymer materials of the parts of the systems of internal Sewerage piping of the building. The technical result is to increase the reliability, ensuring maintainability and operational improvements, as well as improving the manufacturability of the product. The shaped piece contains a tube of polymeric material with a bell, made with the annular shoulder on the outer surface and the annular widening from end to accommodate the strip. In place of the strip socket is made on the outer side with a conical lateral surface, the cavity broadening its ring is made open from the end and are limited to having the Central hole of the removable cover with the corresponding specified taper socket cone-shaped lateral surface, limited to a smaller diameter annular surface, the inner diameter of which is not less than the outside diameter of the pipe socket, and more - internal annular ledge of segmental cross-section. Area cone-shaped lateral surface of the socket is greater than the depth of the available flange pipe groove for accommodating an annular ledge removable cover, the distance between the annular surface and the annular protrusion is greater than the depth of the strip. The diameter of the forming groove of the flange exceeds the diameter located on the cowl flange, at least to the wall thickness of a pipe in place of the bell, but does not exceed the larger diameter having a tapered side surface of the removable cover. The invention is developed in dependent clauses. 2 C.p. f-crystals, 8 ill.

The invention relates to the field of construction, namely, the designs are made of polymeric materials of the parts of the systems of internal Sewerage piping of the building.

Known fittings sewer pipes made of plastics, comprising a housing with a rounded edge and the socket, the base of which is to simplify their manufacturing method of injection molding is performed with a groove whose width is equal to the inner diameter of the shaped part and the outer diameter of the housing at the location of the groove is made equal to the outside diameter of the bell (USSR Author's certificate 969848 A, E 03 F 3/04, 1982).

Known also shaped piece of tubing of plastic material, comprising intersecting at a right angle cylindrical pipes, ISI, and in the end bell on the inner surface is made oblique groove, the bottom of which is parallel to the sloping inner shelf socket (USSR Author's certificate 1268862 A, E 03 F 3/04, 1986 ).

The closest known is shaped piece of sewer pipe, containing a tube of polymeric material with a bell at one of its ends, the inner diameter of the cavity which is greater than the external diameter of the pipe out of the socket, which is made with an annular shoulder on the outer surface and the annular widening from end to accommodate strip (EP 0978595 A2, E 03 C 1/122, 09.02.2000).

The present invention is to increase reliability, ensuring maintainability and operational improvements, as well as improving the manufacturability of the product.

This is achieved by the fact that in fittings sewer pipe containing a tube of polymeric material with a bell at one of its ends, the inner diameter of the cavity which is greater than the external diameter of the pipe out of the socket, which is made with an annular shoulder on the outer surface and the annular widening from end to accommodate prokhladnost broadening its ring is made open from the end and are limited to having the Central hole of the removable cover with the corresponding specified taper socket cone-shaped lateral surface, limited to a smaller diameter annular surface, the inner diameter of which is not less than the outside diameter of the pipe socket, and more - internal annular ledge of segmental cross-section and the conical section of the side surface of the socket is greater than the depth of placement of the strip in its annular broadening and forms between the base of the conical part and the closest to her ring flange pipe groove for accommodating an annular ledge removable cover, the distance between the annular surface and the annular protrusion is greater than the depth of the strip and the diameter of the forming groove of the flange exceeds the diameter located on the cowl flange, at least the wall thickness of a pipe in place of the bell, but does not exceed the larger diameter having a tapered side surface of the removable cover. The wall thickness of the socket and the wall thickness of the pipe out of the socket may not exceed, respectively, 1,50-1,60 and of 1.65-1.75 wall thickness removable cover at the site of its conical side surface. Shaped part of the sewer pipe may be made in the form of a bend with an angle of 15oor 30oor 45oor 87o30", or in the form of a tee or in the form of a plane or two-plane crosses, which additional sockets are located under the corners of the 15oor 30oor 45oor 87o30" symmetrically to the Central axis or in an arbitrary combination of specified values.

The invention is illustrated by drawings, where:

in Fig. 1 shows a shaped piece of sewer pipe without removable covers;

in Fig.2 - removable cover shaped part of the sewer pipeline;

in Fig.3 and 4 embodiments of the shaped parts of the sewer pipeline in the form of allotment;

in Fig.5 - the same, in the form of a tee;

in Fig.6 - same as the plane crosses;

in Fig.7 - the same, in the form of a two-axis crosses;

in Fig. 8 - shaped piece of sewer pipe in the form of a compensation pipe.

Shaped part of the sewer pipeline contains a tube 1 made of polymeric material with the socket 2 at one of its ends, the inner diameter of the cavity which is greater than the external diameter of the pipe out of the socket. The socket 2 is made with an annular shoulder 3 and 4 on the outer surface and the annular extension 5 from the end face to accommodate strip (not shown). The socket 2 in place of the gaskets are made on the outer side with consobrina the Central hole of the removable cover 7 (Fig.2) with the corresponding specified taper socket cone-shaped lateral surface 8, limited to a smaller diameter annular surface 9, the inner diameter of which is not less than the pipe diameter 1 out of the socket, and more - internal annular ledge 10 of segmental cross-section.

Area cone-shaped lateral surface of the socket is greater than the depth of placement of the strip in its annular extension 5 and forms between the base of the conical part and the closest to her of the annular flange 3 of the pipe groove 11 for placing the annular protrusion 10 a removable cover 7. The distance between the annular surface 9 and the annular protrusion 10 is greater than the depth of the strip (along the longitudinal axis of the pipe 1). The diameter of the forming groove of the flange 3 exceeds the diameter located on the cowl flange 4 at least to the wall thickness of a pipe in place of the socket 2, but does not exceed the larger diameter having a tapered side surface of the removable cover 7.

The wall thickness of the socket 2 and the wall thickness of the pipe 1 outside of the bell does not exceed, respectively, 1,50-1,60 and of 1.65-1.75 wall thickness removable cover at the site of its conical side surface. Shaped part of the sewer pipe may be made in the form of a bend with an angle of 15oor 30othe sludge is SUP> or 30oor 45oor 87o30", or in the form of a planar or two-axis crosses at which additional sockets are located under the corners of the 15oor 30oor 45oor 87o30" symmetrically to the Central axis or in an arbitrary combination of specified values.

These parameters in combination to provide optimal conditions for achieving the technical objectives, determining the optimal technological conditions of manufacture of the product, reducing the complexity of the work. In the production of the manufacturability of the product is ensured by the fact that it does not contain any closed or semi-closed (turned inward) cavities, which greatly simplifies the design and Assembly process of the product can be installed in the secured position of the strip, the offset which when assembling the pipeline is completely eliminated, which increases the reliability of the assembled pipeline. Revision of spacer can be done with the cover off, facilitating access and improving, if necessary, conditions for dismantling.

1. Shaped piece of sewer pipe, containing a tube of polymeric material with a bell at one of its ends, the inner Hai on the outer surface and the annular widening from end to accommodate the strip, characterized in that the socket in place of the gaskets are made from an outer side with a conical lateral surface, the cavity broadening its ring is made open from the end and are limited to having the Central hole of the removable cover with the corresponding specified taper socket cone-shaped lateral surface, limited to a smaller diameter annular surface, the inner diameter of which is not less than the outside diameter of the pipe socket, and more - internal annular ledge of segmental cross-section and the conical section of the side surface of the socket is greater than the depth of placement of the strip in its annular broadening and forms between the base of the conical part and the closest to her ring flange pipe groove for accommodating an annular ledge removable cover, the distance between the annular surface and the annular protrusion is greater than the depth of the strip and the diameter of the forming groove of the flange exceeds the diameter located on the cowl flange, at least to the wall thickness of a pipe in place of the bell, but does not exceed the larger diameter having a tapered side surface of the removable cover.

2. Shaped casstte pipe out of the socket does not exceed, accordingly, 1,50-1,60 and of 1.65-1.75 wall thickness removable cover at the site of its conical side surface.

3. Shaped piece of sewer pipe under item 1, characterized in that it is made in the form of a bend with an angle of 15oor 30oor 45oor 87o30", or in the form of a tee, which has an additional socket is angled 15oor 30oor 45oor 87o30", or in the form of a planar or two-axis crosses at which additional sockets are located under the corners of the 15oor 30oor 45oor 87o30", symmetrical to the Central axis or in arbitrary combinations of the above values.

 

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