RU2277155C2 - Spillway device for sewage system - Google Patents

Abstract

FIELD: sanitary equipment, particularly flexible spillways to be attached to sewage system including waste water discharge means.

SUBSTANCE: spillway device comprises pipe with corrugated central part and wide end provided with rim to connect the pipe with sanitary equipment. The pipe also has narrow end with outlet connection tube arranged inside the pipe. The connection tube comprises flange extending outside the pipe and brought into contact with it. The flange is adapted to connect the pipe with sewage system pipeline. Both pipe ends are provided with elastic seals. Elastic seal connected with wide pipe end is made as sleeve having cylindrical part arranged between the rim and outer pipe wall and conical part located in pipe interior. Elastic seal connected to narrow pipe end is made as bush having row of annular ribs formed on outer surface thereof.

EFFECT: improved performance characteristics due to increased air-tightness thereof without the use of additional components, simplified mounting and increased angle of possible corrugated pipe inclination without inner pipe profile deformation.

8 cl, 10 dwg

Description

The proposal relates to such sanitary equipment as a flexible spillway system, designed to be connected to a sewage system, including means for draining domestic and sewage.

As an analogue of the proposal, a spillway device for sewer systems was selected, containing a pipe with a wide end, on which a gasket is installed and which is made with the possibility of connection with a sanitary facility, and a narrow end (RU No. 2081258, class E 03 С 1/22 , published on 06/10/1997).

A well-known analogue is characterized by insufficient tightness of the docking nodes.

The technical result of the proposal is to increase the operational properties of the device, primarily due to ensuring its tight properties without the use of additional parts, as well as facilitating installation and increasing the angle of inclination (bending) of the corrugated part of the pipe without distorting its internal profile. The proposed spillway system allows you to connect funds located at different heights (up to 250 mm) and at a distance of up to 0.8 m from the sewage system.

The technical result is achieved in the proposal using the following features.

The spillway device for sewer systems contains a pipe of variable cross section, the middle part of which is corrugated, the wide end has a frame and is made with the possibility of connection with sanitary equipment, and the narrow end has an outlet pipe located inside the pipe with a flange located outside the pipe end and in contact with him, and is designed to connect to the sewer system pipeline. Elastic gaskets are installed at both ends of the pipe, moreover, the gasket installed on the wide end of the pipe is made in the form of a cuff, the cylindrical section of which is located between the frame and the outer wall of the pipe, and the conical section is in the cavity of the pipe, and the gasket installed on the narrow end of the pipe , made in the form of a sleeve having on the outer surface a series of annular ribs.

The annular ribs of the sleeve can be arranged with the same pitch and have a height decreasing towards the end of the narrow part of the pipe, due to which they give the gasket a conical external profile.

The frame is circular and has a cylindrical shape. One of its ends, located at the end of the wide end of the pipe, has a flange, and the other end has a latch-clamp.

The device is additionally equipped with a locking ring interacting with the protrusion formed on the inside at the junction of the cylindrical and conical parts of the cuff and designed to interact with the edge of the pipe.

The end of the exhaust pipe, placed in the cavity of the pipe, is made with a reduced outer diameter.

Each corrugation in the axial section is not symmetrical relative to the line passing through its vertices, while the longer side of the axial section of each corrugation is located on the side of the narrow end of the pipe.

The pipe, frame and exhaust pipe are made of polypropylene, and the gaskets are made of flexible PVC (polyvinyl chloride).

The proposal is illustrated by drawings, where in Fig.1 shows a complete device; figure 2 - pipe; figure 3 - laying the wide end of the pipe; figure 4 is a view of I of figure 3 (enlarged); figure 5 - laying the narrow end of the pipe; figure 6 - release means; Fig.7 - frame; Fig.8 is a locking ring; Fig.9 is a view along arrow B in Fig.8; figure 10 is a view II of figure 8 (enlarged).

The drainage device for sewage systems shown in FIG. 1 contains a pipe 1 having a variable cross section, the middle part of which is flexible and shape-stable due to corrugations 2. The corrugated pipe allows you to change the linear dimensions of the device in the range from 500 to 800 mm. At the wide end 3 of the pipe (Figs. 1, 2), an annular cylindrical frame 4 with a flange 5 (Fig. 7) and a lug-retainer 6 is installed, and a cylindrical part 8 is placed between it and the pipe wall with a sealing ring 7 (Fig. 8) gaskets 9 (FIG. 3), the conical elastic part 10 of which is located at an acute angle to part 8 and is intended to be placed in the cavity of the wide part of the pipe 1, which serves to connect with a sanitary equipment, such as a toilet bowl. The gasket 9 covers the edge of the pipe 1 and has a protrusion 11 at the junction of parts 8 and 10 on the inner side, which interacts with the pipe edge and the ring 7. On the inner surface of the cylindrical part 8 of the gasket 9, annular grooves 16 are made (Fig. 4), and on the outer the surface of the retaining ring 7 - protrusions 17 (FIG. 10), corresponding to the grooves in shape, designed to securely fasten the ring 7 to the gasket 9. Outside the narrow end 18 of the pipe (FIG. 2), a second gasket 12 (FIGS. 1, 5) having on its outer surface, a series of annular perpendicular on the surface of the strip of protrusions 13, made in the form of elastic petals of different heights, installed with the same pitch relative to each other. As can be seen from the drawing, several of the highest protrusions 13 are placed on one edge of the gasket 12, assembled (Fig. 1) to the corrugated part of the pipe 1, and the lowest protrusions 13 are placed on the other edge of the gasket 12, assembled to the edge of the narrow part pipe, in the cavity of which an outlet pipe 14 is installed (Fig.6), designed to be connected to the sewer system pipeline. One edge of the pipe 14 is made with a flange 15, designed to be placed outside the end of the narrow part of the pipe, and the other edge of the tool 14 is refined.

As can be seen from the drawing (figure 2), the plot "a" is made large plot "b", which characterizes the asymmetric execution of each corrugation 2 relative to the line aa passing through the vertices of its axial section. The triangular profile and the step of the corrugations increased in height make it possible to increase the angle of inclination of the corrugated part of the pipe without distorting its internal profile when connecting the pipe to a sanitary facility and a sewage system.

Asymmetrical corrugation facilitates and improves the process of folding the pipe, providing convenience during transportation and storage of products.

The diameter of the corrugated pipe 1 is 100 mm, which allows the production of overflows of domestic and wastewater in large volumes (up to 50 l / min).

The corrugated stretched part of the pipe 1 provides its necessary flexibility for connection with technical means located at various heights and distances up to 800 mm that are part of the sewage system.

The conical shape of the outer profile of the gasket 12, formed by elastic petals 13, provides ease of installation for joints having a diameter difference of 100 to 120 mm and heights of up to 300 mm.

The frame 4 and both gaskets 12 and 9 provide a tight connection due to the elastic elements of the gaskets, such as the conical part 10 of the gasket 9 and the tabs-lobes 13 of the gasket 12. The latter allow the tight connection without the use of threaded rings, threaded joints and additional seals. The ease of installation and the flexibility of the exhaust pipe 14 allows it to be used for supply to the sewage system with different diameters of the input disks.

Corrugated pipe can be made of polypropylene, which will allow it to produce water overflows with temperatures up to + 85 ° C.

Both gaskets can be made of flexible PVC.

The proposed solution has the following advantages.

The frame and gaskets provide a tight connection between the device and the sewer system due to their elasticity and special shape.

The gasket 9, connected to the corrugated pipe 1, has an internal protrusion 11, which allows to increase the rigidity of the connection during installation. This protrusion improves the tightness of the connection.

The presence of the protrusion (retainer) 6 in the frame 4 allows you to rigidly connect and fix the corrugated pipe and gasket 9, achieving a tight connection.

Besides:

The increased triangular profile and the step of the corrugated pipe allows you to increase the angle of inclination of the corrugated pipe without distorting the internal profile when connecting.

The joint sealing system is provided with a special configuration of gasket profiles having flexible petals.

The presence of the retainer ring 7 increases the rigidity of the corrugated pipe, which greatly facilitates its installation and improves the tightness of the joints.

Claims (8)

1. A spillway device for sewer systems, comprising a pipe, the middle part of which is corrugated, the wide end is provided with a frame and made with the possibility of connection with sanitary equipment, and the narrow end has an outlet pipe located inside the pipe with a flange located outside the pipe end and in contact with it, and is designed to connect to the sewer system pipeline, while at the both ends of the pipe there are installed elastic gaskets, and the gasket installed on the At the end of the pipe, it is made in the form of a cuff, the cylindrical section of which is located between the frame and the outer wall of the pipe, and the conical section is in the cavity of the pipe, and the gasket installed on the narrow end of the pipe is made in the form of a sleeve having a number of annular ribs on the outer surface. 2. The device according to claim 1, characterized in that the annular ribs of the sleeve are located with the same pitch. 3. The device according to claim 1 or 2, characterized in that the annular ribs of the sleeve have a height that decreases towards the end of the narrow part of the pipe. 4. The device according to claim 1, characterized in that the frame is cylindrical with a flanging and a protrusion-latch. 5. The device according to claim 1, characterized in that it is further provided with a locking ring interacting with a protrusion formed on the inside at the junction of the cylindrical and conical parts of the cuff and designed to interact with the edge of the pipe. 6. The device according to claim 1, characterized in that the end of the exhaust pipe, located in the cavity of the pipe, is made with a reduced outer diameter. 7. The device according to claim 1, characterized in that each corrugation in axial section is not symmetrical relative to the line passing through its vertices, while the longer side of the axial section of each corrugation is located on the side of the narrow end of the pipe. 8. The device according to claim 1, characterized in that the pipe, frame and exhaust pipe are made of polypropylene, and gaskets are made of flexible PVC.

Images