JPS6023218B2 - Self-retaining sealing gasket device for drainage equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a self-retaining sealing gasket device for drainage appliances.

The following US patents constitute prior art to this invention.

i.e., U.S. Pat. No. 1,994,789, No. 3,4
No. 20,552, No. 2,444,340, No. 1,50
No. 3,421, No. 3,393,40y, No. 3,663
No. 718, No. 3,579,670, No. 3,890
No. 511, No. 3,703,302, No. 4,092,7
No. 45, No. 3,481,632, and No. 4,05
It is No. 9,28y. As shown in the above-mentioned U.S. patents, various devices have been proposed in the prior art for securing and sealing a drain pipe to a drain appliance body or the like. In many prior art devices, a resilient gust is inserted between the drain pipe and the drain appliance to provide an effective seal between the drain pipe and the drain device. Generally speaking, conventional gasket devices have been designed to be used with specific drainage equipment components, pipe connections, etc.

Therefore, each gasket device is unique and is not compatible with various commercially available gasket devices. As a result, standardized, mass-produced components in sewerage and other fields have not been able to be used in self-sealing drainage appliances that include resilient sealing gast devices. The present invention relates to a self-retaining sealing gasket device that can be used as a standardized component in a wide variety of drain fittings, pipe fittings, etc. The device of the present invention has a rigid cylindrical sleeve with a large hole extending in the direction of the sea bream. The sleeve is provided with a number of threaded holes extending from one end thereof parallel to its axial direction. An annular sealing gasket made of elastic rubber or the like is located directly adjacent one end of the sleeve.

The gasket also has a large number of threaded holes that align with the holes in the sleeve. This annular layer portion is provided, and the annular shoulder portion is configured to fit into an annular groove provided on the opposite end surface of the gasket. The compression made has a number of threaded holes which are aligned with the holes in the sleeve and gasket.The gasket device of the present invention also prevents the installation of drainage fixtures and removes odors, etc. It is threaded around the end of the pipe.

That is, the gasket device is placed in the annular space defined by the inner surface of the drain fitting and the outer surface of the end of the drain pipe. A number of screws extend through the compression ring and gasket to be secured to the threaded holes in the sleeve. Screws are also secured into the respective threaded tapped holes to tighten the sleeve and compression ring together.

The V-shaped annular shoulder engages the annular groove of the gasket to compress the gasket and force it to expand radially inward toward the pipe and outward toward the drain odor fitting. Thus, the present invention The sealing gasket device according to the present invention applies a large force to the interface between the drain pipe and the drain fixture fitting, thereby achieving a liquid-tight and leak-proof seal therebetween. In one embodiment, a resilient seating ring is provided which is secured to the pond end of the sleeve to thereby properly seat the sleeve within the annular space of the sewer appliance.

Hereinafter, the sealing gasket device according to the present invention will be explained in detail using the drawings.

1-4, one embodiment of a self-retaining sealing gasket device according to the present invention is illustrated.

The gasket device includes a generally cylindrical sleeve-like member 11 made of non-resilient plastic material. The sleeve has generally smooth inner and outer surfaces. The present invention has a number of threaded tapped holes extending from one end of the toss leaf parallel to its scale direction. It also includes a compression ring having an outer diameter approximately equal to the outer diameter of the sleeve member 3 and an inner diameter approximately equal to the inner diameter of the sleeve.

The compression ring group 4 has four screw hole dragons 8. The threaded tap holes turtle 8 are all arranged in a row. The feature of the present invention is that an annular shoulder is provided extending outward from one end surface of the sleeve electric turtle. That is, it has a triangular cross section.

An elastic gasket cover is provided which has a ring-shaped outer shape and is adapted to abut on the annular shoulder 3 of the sleeve.The surface facing the sleeve of the gasket has an annular shoulder. A V-shaped annular groove 3S is provided to receive and engage with the gasket. The device of the invention also includes four screw threads 9 extending through the screw holes 34 and adapted to be screwed into the threaded tap holes 3 of the sleeve electric turtle. Contains.

The screw plays the role of compressing the gasket sandwiched between the compression ring and the sleeve in the vertical direction. A self-retaining sealing gasket device consisting of a sleeve, a compression ring, a gasket and four screws is used in conjunction with drain installation odors, pipe connection odors, etc.

A typical drain odor fixture generally has an upper flange 24 extending radially outwardly from its upper end and is located around a drain hole in a floor, bathtub, shower stall, etc. It includes a cylindrical drainage device body 26 adapted to be received in the annular groove. Drain body 26 also includes a lower flange 27 extending radially inwardly from its lower side. The flange 27 defines a lower closure through which the upper end of the t-drain pipe 28 extends. An outer nut 23 is threaded around the drain body to retain the packing and secure the drain to the floor structure. The self-retaining sealing gasket arrangement of the present invention is fitted around the upper end of a drain pipe.

The sleeve, gasket and ring are attached to the drainage device main body 26.
and the outer surface of the upper end of the drain pipe 28. To effect a seal between the pipe 28 and the body 26, a screw 19 is screwed into the threaded hole 13, thereby drawing the compression ring 14 and the sleeve 11 together.

This action compresses the sealing gasket 32 in the axial direction and causes the annular shoulders 3 to fit into the respective annular grooves 33. As a result, the elastic gasket 32 is expanded radially inward and outward. As a result, the sidewall of the gasket is
It is fitted over each surface of the drain odor fitting and the drain pipe to achieve a water-tight and leak-tight seal therebetween. Referring to FIG. 4, another embodiment of the invention is a sleeve having an annular shoulder 31 at one end! 1, a gasket 32 and a compression ring 14 similar to the previous embodiment.

In this embodiment, one end of the sleeve 11 is provided with an annular recess of U-shaped cross section extending to the end surface of the sleeve and to the outer and inner surfaces adjacent to the end surface. One end 36 of the sleeve 11 has a U-shaped cross section.
A resilient seating ring 37 is provided which is adapted to be received by the user. The seating ring 37 is attached to the flange 27 when the sealing gasket ring is installed on the drainage equipment.
It is made to look like this on the inside surface of the body. The seating ring 37 properly seats the sleeve 11 within the annular space and provides a second seal in contact with the pipes and drainage fittings, thereby reducing leakage of liquids, as shown in FIG. Still other embodiments of the invention include the same sleeve li, ring 14 and gasket 14.
In this embodiment, an annular recess 38 is provided in the outer and inner surfaces of the sleeve adjacent the ends to form ends that are rectangular in cross-section. Additionally, a pair of circumferential grooves having an arcuate cross section are provided at the upper ends of the recesses 38 on the outer and inner surfaces of the sleeve. This embodiment also includes a seating ring 41 in the form of a grooved ring of generally rectangular cross section.

A pair of annular beads 42 are provided at the uppermost end of the ring 41 and extend in directions facing each other. This bead is received within the groove 39 of the sleeve when the seating ring 41 is secured to one end of the sleeve. This seating ring functions similarly to the seating ring of the previous embodiment, except that the bead 42 ensures positioning of the seating ring with the sleeve. The sealing gasket device of the present invention, which includes a compression ring, a gasket, and a screw, is sold assembled as a single unit.

The sealing gasket layer of the present invention has an inner diameter sized to receive a drain pipe having a standard diameter, and an outer diameter such that it can be received within a standard drainage fixture body as known in the art. It has such a small size. Therefore, the sealing gasket device of the present invention can be used in many drain odor fittings and drain pipe combinations.As a result, the device according to the present invention can be installed in large quantities and is available to the public. Additionally, unlike prior art plumbing equipment, the sealing gasket system of the present invention eliminates the need to replace any parts of the drainage equipment without damaging the components. It can be disassembled for maintenance or repair without any hassle.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a drain fitting fixture using a self-retaining sealing gasket device according to the present invention. FIG. 2 is a longitudinal cross-sectional view of the drain fitting odor in FIG. FIG. 3 is an exploded perspective view of the drain odor fixture shown in FIGS. 1 and 2;
FIG. 4 is an enlarged longitudinal sectional view of another embodiment of the present invention.
FIG. 5 is a longitudinal sectional view of still another embodiment of the self-retaining sealing gasket device according to the present invention. 11... Sleeve, 13... Threaded hole, 14.
...Compression ring, 18...Screw hole, 1
9...screw, 20...gasket, 23...outer nut,
26... Body, 27... Drain pipe,
31... Annular shoulder, 32... Gasket. FIG Town/F Tsubasa G■2 FIG-3 FIG-4 FIG-5

Claims (1)

[Scope of Claims] 1. A self-retaining sealing gasket device for a drain appliance that receives an end of a drain pipe therein and defines an annular space therebetween, comprising: a substantially rigid cylindrical sleeve; a compression ring; an annular resilient sealing gast disposed between the sleeve and the compression ring; and a plurality of screws extending between the compression ring and the sleeve to compress the compression ring and the sleeve. a plurality of tap holes extending longitudinally within the sleeve for securing the screws; and threaded holes extending through the compression ring and the gasket and aligned with the tap holes.
The above-mentioned sleeve and the above-mentioned gasket are
and having opposing end surfaces adapted to engage each other, the end surfaces radially inwardly and outwardly compressing the gasket when the screws axially compress the gasket. A gasket device adapted to inflate and thereby seal between the drainage device and the end of the drainage pipe. 2. The gasket device according to claim 1, wherein the opposing end surfaces include a V-shaped annular shoulder extending axially from the sleeve, and a V-shaped annular shoulder formed at one end of the gasket. a gasket device comprising an annular groove shaped like the annular groove and adapted to receive the annular shoulder therein.