JPH0246729B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a self-retaining sealing gasket device.

Prior Art: References related to this field include U.S. Pat.
No. 3579670, No. 3703302, No. 3481632, No.
No. 3420552, No. 1503421, No. 3668718, No.
There are No. 3896511, No. 4092745, and No. 4059289.

As disclosed in the above-mentioned documents, various devices exist in the prior art for securing and sealing pipes within drain body bodies and the like. Many prior art devices utilize a resilient gasket device that is adapted to be inserted between a pipe and a drainage fixture to provide a seal between the two.

In general, conventional gasket devices suffer from the disadvantage that the drain equipment components, pipe fittings, etc. in which they can be used are specific.
That is, each gasket device has a unique configuration and is not compatible with various commercially available drainage devices. As a result, the number of sewage-related appliances such as self-sealing drainage appliances using elastic gasket devices has not reached the level where they can be standardized and mass-produced to increase economic efficiency.

OBJECTS OF THE INVENTION: It is an object of the present invention to provide a self-retaining sealing gasket device for use as a standardized component for use in a wide variety of drain fittings, pipe fittings, etc.

Structure of the Invention: The sealing gasket device of the present invention includes a pair of compression rings each having a large hole extending therethrough. One of the compression rings has a number of threaded holes extending in the axial direction thereof, and the other compression ring has a number of posts located in alignment with the threaded holes in the first compression ring. , each provided with a threaded hole.

The pair of compression rings are axially spaced apart and a sleeve-like first gasket member is inserted therebetween. The gasket has a number of threaded holes extending to one end thereof adapted to be received within a boss on one of the compression rings. A deep annular groove extends to the other end of the first gasket member and has a depth of:
The height is approximately equal to the axial height of the gasket member.

The second gasket member is comprised of a generally cylindrical hollow member made of elastic rubber plastic or the like. The second gasket member is provided with a number of threaded holes spaced the same way as the first gasket member. This threaded hole extends parallel to the axial direction of the sealing gasket device. A number of slot openings extend axially therein from the other end of the second gasket member and are aligned with threaded holes formed therein. The second gasket member is adapted to be received within the annular groove of the first gasket member, and a pair of compression rings are mounted at opposite ends of the assembly. A number of screws extend through threaded holes adapted to be received within bosses on one of the first gasket member and the compression ring.

Operation and Effect: When the sealing gasket device is installed around a drain pipe, etc., and the screw is secured to its tightened position, the compression ring pulls the two-piece gasket assembly along its axis, pulling it radially. Expand in the direction. As a result, a watertight seal is achieved on the pipe around which the sealing gasket arrangement is fitted and on the drain coupling or drain appliance body into which the sealing gasket arrangement is fitted.

Example: Hereinafter, the present invention will be explained in detail using the drawings.

The present invention is a widely used drainage equipment connector,
The present invention relates to a self-retaining sealing gasket device used as a standardized component in pipe fittings and the like. Referring to Figures 1 to 3,
The gasket device includes a sleeve-like gasket member 11 having a cylindrical shape and having a hole 13 extending axially therein. Gasket member 11 is manufactured from a resilient sealing material such as rubber or plastic. Gasket member 11 includes a deep annular groove 12 extending to its upper surface and having an axial dimension approximately equal to the axial length of gasket member 11. The lower end of the gasket member 11 is provided with four equally spaced screw holes 21. This hole 21 is
It extends in communication with the annular groove 12 .

The gasket device of the present invention also includes a second gasket member 14 having a generally cylindrical hollow portion 18. The upper end of the hollow portion 18 is provided with a flange 16 that extends both radially inwardly and outwardly. Four equally spaced threaded holes 17 extend through the end surface of flange 16. The arrangement of the screw hole 17 is similar to that of the screw hole 2.
This is the same arrangement as 1. Further, four slot openings 19 extend from the lower end of the hollow portion 18 to the hollow portion 1.
It extends within 8. The axial length of the slot opening 19 is equal to the total axial length of the hollow portion 18.
Additionally, each slot opening 19 is parallel to the axis of the second gasket member 14 and aligned with one of the threaded holes 21. Gasket member 14 is also made from a resilient sealing material such as rubber or plastic.

The gasket device of the present invention also includes a pair of compression rings 22,23. compression ring 2
The outer diameter of gasket member 2 is made equal to the diameter of gasket member 11. The inside diameter of the hole 27 extending through the compression ring 22 is equal to the inside diameter of the hole 13 in the gasket member 11. Four generally cylindrical posts 24 extend upwardly from the compression ring 22, each post 24 including a threaded hole extending parallel to the axis of the entire gasket arrangement. Post 24 is adapted to be received within a hole 21 provided in the lower end of gasket member 11. The other compression spring 23 has the same inner and outer diameters as the compression ring 22 .
Compression ring 23 has four threaded holes 28 extending parallel to the axis of the gasket arrangement. compression ring 2
3, screw the gasket member 14 so that the screw hole 28 is aligned with the screw hole 17 of the gasket member 14.
It is adapted to be placed on the upper end surface of the flange 16 of.

The gasket system of the present invention includes four screws 26 connecting each component. screw 2
6 extends through the hole 28 of the compression ring 23 and the hole 17 of the gasket member 14. The threaded shank of the screw 26 further extends through the slot opening 19 in the gasket member 14 and is received within the threaded hole in the post 24. Post 24 is received within bore 21 of gasket member 11.

A feature of the invention is that the hollow portion 18 of the gasket member 14 is received within the annular groove 12 of the gasket member 11. When the screw 26 is tightened tightly into the threaded hole in the post 24, the screw 24 moves the compression rings 22, 23 closer together, causing the gasket members 11,
14 is axially compressed. When the gasket device is axially compressed, the hollow portion 18 acts as a wedge that expands the gasket member 11 radially outward and inward, thereby disengaging the pipe and any drainage equipment or pipe fittings provided around it. Seal with ingredients.

For example, as illustrated in FIGS. 1-3, a typical floor drain fixture includes an external thread 32 extending radially outwardly from its upper end and resting in a mounting hole in the floor 34. The drainage device body 31 includes a drain flange 33 having a flange 33 formed therein. Drainage equipment body 3
1 extends through a generally circular opening in the floor 34 such that the pipe 36 extends upwardly through a lower opening 37 in the drain body 31 . pipe 36
The upper end ends below the upper end of the drainage device main body 31.

The self-retaining sealing gasket device of the present invention secures around the top end of a pipe within a narrow annular gap defined between the outer surface of the top end of the pipe and the inner bore surface of the drain device body. When sealing the drain pipe in the drain device main body, it is sufficient to simply tighten the screw 26, and the compression rings 22, 23 are moved axially closer to each other, thereby compressing the gasket members 11, 14. The radial expansion of the gasket device ensures that watertightness is achieved between the inner bore of the drainage device body and the outer surface of the upper end of the pipe.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a typical drainage apparatus including a self-retaining sealing gasket device according to the present invention. FIG. 2 is a cross-sectional view of a self-retaining sealing gasket device of the present invention for use in a typical floor drainage fixture. and FIG. 3 is an exploded perspective view of the components of a self-retaining sealing gasket device according to the present invention. 11...Gasket member, 12...Groove, 13...
... hole, 14 ... gasket member, 16 ... flange, 18 ... hollow part, 17, 21 ... screw hole,
19...Slot opening, 22, 23...Compression ring, 24...Post, 26...Screw.

Claims (1)

Claims: 1. A self-retaining sealing gasket device for drainage appliances and pipe fittings, comprising a generally cylindrical sleeve adapted to be fixed around a pipe within said pipe fitting. a first gasket member comprising an annular deep groove extending parallel to the axial direction of the first gasket member to one end thereof; a second gasket member adapted to include a cylindrical sleeve-like portion; and compression ring means disposed at opposite ends of said gasket members in the assembled state, said gasket member being adapted to axially axially extend said gasket member. a compression ring adapted to compress and cause the second gasket member to expand the first gasket member radially inwardly and outwardly, thereby effecting sealing contact between the pipe and the pipe fitting; A sealing gasket device consisting of: 2. The sealing gasket device according to claim 1, wherein the first gasket member has a plurality of holes extending parallel to its axial direction and extending to the other end communicating with the annular deep groove. A sealing gasket device comprising: 3. In the sealing gasket device according to claim 2, the compression ring means comprises a pair of compression rings, one of which is connected to the first compression ring.
A sealing gasket device adapted to be placed on the other end of the gasket member. 4. The sealing gasket device according to claim 3, wherein one of the compression rings comprises a number of posts extending parallel to its axial direction, the posts being provided on the first gasket member. a sealing gasket device aligned with and received within the aperture. 5. A sealing gasket device according to claim 4, each comprising a number of threaded holes extending parallel to said axial direction, each provided in one of said posts respectively. Sealing gasket device. 6. The sealing gasket device of claim 3, wherein the second gasket member includes a flange extending radially inwardly and outwardly from one end of the generally cylindrical sleeve-like portion; A sealing gasket device having an inner diameter and an outer diameter equal to those of the first gasket member. 7. The sealing gasket device according to claim 6, comprising a number of threaded holes extending in parallel to the axial direction up to the edge of the flange, each of the threaded holes being connected to the first A sealing gasket device aligned with one of the holes in the gasket member. 8. The sealing gasket device of claim 7, including a slotted opening extending to the other end of said second gasket member, each slotted opening aligned with one of said plurality of threaded holes. A sealing gasket device comprising: a gasket and a gasket disposed parallel to the axial direction; 9. The sealing gasket device according to claim 8, wherein the slot opening extends vertically from the other end of the second gasket member to the flange. 10. The sealing gasket device according to claim 9, wherein the other compression ring is placed on an edge of the flange of the second gasket member, and the other compression ring a plurality of screws extending through a hole in the second gasket member and the slot opening in the second gasket member adapted to be received within the hole in the first gasket member; Sealing gasket device.