JPH05507008A - static water drain plug - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] static water drain plug The present invention relates to a drain or drain plug for a liquid storage container.

The invention particularly applies to washbasins, sinks, etc. in homes and commercial buildings, laboratories, etc. Drains or drain plugs for use in connection with bathtubs, hot spring bathtubs, floor drains, etc. Hereinafter, it will generally be referred to as a drain plug), but it is not limited to that.

The simplest form of a commonly used drain plug is a cut-out with a complementary shape to the neck of the drain outlet. a rigid or flexible frusto-conical plug suitable for engaging a frusto-conical neck; or It consists of a plug with a flexible flange suitable for engaging the annular edge of the drain outlet. capacity generally useful for those purposes that provide a means of retaining liquid within a vessel However, these closures suffer from a number of disadvantages. The two types of closures mentioned above are Under water pressure, a seal is formed and the plug is removed as the water depth increases. The effort required to do so increases significantly. Most suitable for children, the elderly or the dissatisfied. It is inconvenient and, in some cases, can be dangerous.

Additionally, if you are distracted while filling a bathtub, basin or similar container, Allows overflow of vessels and multi-layered buildings such as home residences and hotels, apartments etc. Disastrous consequences for residential carpets, furniture and building structures.

A significant drawback associated with the above types of closures is that they are generally not captured and their Because of this, they are easily lost, misplaced, or stolen from hotels etc. This can lead to costly replacements. By attaching a leash or chain It is possible to capture the drain stopper, but this is not always convenient and can be unsightly. can be difficult to clean.

There have been numerous attempts to overcome the drawbacks associated with prior art drain plugs. These examples Australian Patent No. 1ii12445152 and 36335/89. O - Stralia Patent No. 213319. For international patents @PCT/GB85100345 (WO86101100), and Australian patent ff11166157/ It is 81.

Patent application N1112445152 discloses an aperture that can be selectively aligned with an aperture in the outlet body. Relating to a drainage outlet having a rotating plate with a mouth. This plate opens the drain. Can be rotated to open or close. This equipment is difficult and inconvenient to operate. , suffers from poor liquid sealing ability, and the exposed spring a structure eventually Patent application N11363 featuring fibrous debris trap leading to poor drainage and blockages 35/89 is similar to patent Mnu 12445152, but is missing or A device is described that includes a removable stopper assembly that is susceptible to theft.

Australian patent Ntx213319 states that the sealing engagement of the spigot against the outlet Acquisition, achieved by rotating the stopper on the shaft so as to raise the kidneys Describe the plug/drain combination. This equipment suffers from poor drainage, trapping of fibrous debris, and protrude above the outlet surface in the open position, thereby causing damage in the bathtub etc. cause potential harm.

For international patent @P CT/GB 85100345 C, C+: 1 (7) Attach to one end. a drain outlet including a cover plate attached and a plug attached to the other end of the shaft. Describe it. Push the stopper down onto the cover plate and insert it with the bayonet coupling. sealing engagement with the outlet opening against the spring biasing means. Pressed when This particular instrument is designed to prevent lint from forming in the upper and lower spring mechanisms. are particularly susceptible to blockages due to being trapped, and such blockages Relatively difficult removal operations may be required to remove the deposits.

Each of the above types of spigot/outlet combinations enhances the liquid seal and therefore The present invention relates to a stopper that is subjected to hydrostatic pressure, which increases the difficulty of removing the stopper.

Australian Patent No. 66157/81 is a system for resisting water hend hydrostatic pressure. Describes a hydraulically actuated stopper that Selective application of mains water pressure to operate taps In addition to requiring extremely expensive equipment to permit The system is susceptible to leaks, blockages in the presence of foreign objects and poor seals.

Except for the patent application [Nct36335/89, all of the above-mentioned prior art are based on fiber waste. Removal of drain vibrator or plug/outlet combination to remove blockages and for cleaning purposes Requires complete removal.

It is an object of the present invention to overcome or alleviate the problems of prior art tap/drain combinations and to The object of the present invention is to provide a new plug/drain with additional advantages.

According to the invention, Hollow body with an inlet boat and an outlet boat suitable for connection to a liquid conduit minutes and sealing means associated with said inlet boat and an open position remote from said sealing means; and a closed position in sealing engagement with the sealing member. a valve member and resilient biasing means for forcing said valve member toward a closed position 1; , a closure/drainage device for a liquid holding container is provided.

Preferably, the device includes locking means for selectively locking the valve member in the open position. I'm here.

If desired, the device may include locking means for selectively locking the valve member in the closed position. can be included additionally or alternatively.

Sealing means cooperate with said valve member to prevent liquid from entering into said inlet boat. Any suitable means for forming a liquid-tight seal may be used.

Preferably, the sealing means allows insertion or removal of said valve member from said body portion. It can be removably attached to the main body portion in order to make it functional.

Preferably, said sealing means comprises a flared seal inwardly of said body portion. surface.

Preferably, the sealing surface is adapted to engage a complementary shaped surface of the valve member. It has a frusto-conical surface.

Preferably, the biasing means is configured to bias the movable valve member and the valve support associated with the body portion. It includes a compression spring acting between the members.

If necessary, the biasing means may include a biasing force for forcing the valve member toward a closed position. It may be adjustable so that it can be selectively changed.

Preferably, in use, contact between said biasing means and foreign objects entering said inlet port is prevented. A cover means is attached to the biasing means to stop the biasing means.

The valve member preferably includes a circular head portion with a frusto-conical sealing surface and said valve support. It consists of a rotating member having a central valve shaft rotatably mounted within the member.

Preferably, said locking means comprises one or more locking means extending perpendicularly to said valve shaft. including protrusions.

The locking means is preferably arranged to selectively hold said valve member in the open or closed position. a slotted recess in the valve support member for receiving a respective projection.

The locking means is configured to move the valve member into a locked open position and/or into a locked open position when rotated. Alternatively, one or more inclined surfaces provided on said valve support member to guide the valve into a stopped closed position. or extra can be included.

Preferably, a gripping hand is provided on the normal surface of the valve member to facilitate rotation of the valve member. There are steps.

Preferably, the valve member is moved forward by a biasing force of a predetermined magnitude. through an intermediate unlocked position forced into sealing engagement with the sealing means. is selectively movable between a locked open position and a locked closed position.

If necessary, said biasing means may be compressible or incompressible fluid associated with the pressure accumulating means. It can contain a fluid.

In order that the invention may be more easily understood, preferred embodiments of the invention are now illustrated in the accompanying drawings. Reference is made to specific examples.

FIG. 1 is a cross-sectional view of the drain tap/drain outlet device in the closed position.

FIG. 2 illustrates the device of FIG. 1 in an open position.

FIG. 3 is an exploded view of the apparatus of FIGS. 1 and 2.

FIG. 4 is a new view of an alternative embodiment of the invention.

FIG. 5 is a cross-sectional view of the actuation means for the embodiment of FIG. 4;

Referring to Figures 1-3, the drain plug/outlet device connects to the sewer line (not shown). It includes a main body 1 having an externally threaded portion 2 to facilitate connection.

Within the upper opening of the body 1 is an annular sealing member that engages with the inner internal portion 4 of the body 1. 3 is removably arranged. The inner peripheral edge of the sealing member 3 widens toward the inside of the main body 1 This is a frusto-conical sealing surface 5.

In the hollow interior of the main body 1, a valve member 6 is slidably disposed within a valve support member 7. Placed. 1 spaced apart arranged in a recess ll formed in the inner wall of the main body 1 110 extend radially from the central portion 8.

The valve member 6 comprises a circular cap 12 having a recess 13 in its upper surface. This depression Within the groove 13 is a finger grip portion 14 which facilitates rotation of the valve member 6. Shirin a frusto-conical sealing surface 16 having a complementary shape to the sealing surface of the sealing member 3; A resilient seal 15 is placed around the periphery of the cap 12. The cylindrical shaft 17 is It hangs from the lower surface of the cap and is slidably accommodated in the opening 9 in the valve support member 7. It will be done. A circular wall 18 is also suspended from the lower surface of the cap 12, and a hollow cylindrical side plate 19 and Together they form a substantially sealed enclosure 20 containing a helical compression spring 21.

The side plate 19 has a center opening 22 through which the shaft 17 can freely slide. Pillar pins 23 fit through opposing openings 24 in side plate 19 and into openings in shaft 17. entered. Between the pin 23 inside the side plate 19 and the central portion 8 of the valve support member 7, an opposing An annular boss 25 is arranged having a plug-in slot 26 (FIG. 3).

FIG. 1 illustrates the drain plug/outlet device in the closed position and FIG. 2 shows the device in the open position. Illustrated.

The operation of the device according to the invention will now be described with reference to FIGS. 1-3.

The drain plug/outlet device illustrated in Figures 1-3 may be used in a conventional manner for sinks, washbasins, bathtubs, etc. Easily installed in hot tubs, showers etc. As shown in Figure 3, the cap 1 2 can be rotated between open and closed positions through an intermediate filling position.

In the closed position shown in FIG. 1, pin 23 lies on top surface 26 of boss 25. the resilient seal 15 in sealing engagement with the sealing surface 5 of the sealing member 3. When pressed, it prevents water etc. from entering through the outlet main body 1.

By rotating the cap 12 to the intermediate filling position, the pin 23 is inserted into the slot 26. , thereby forcing the valve member 6 downwardly against the restoring force of the spring 21. can be done. Sufficient pre-load to support a given liquid head pressure. By choosing a spring 21 with a defined resilience, the device Provides a very convenient overflow prevention measure for liquid containers such as tanks, bathtubs, etc. provide When the liquid depth reaches a predetermined safety level, the liquid on the valve member 6 The body head pressure exceeds the restoring force of the spring 21, so that excess liquid flows into the hollow interior of the body. allow escape through. The device of the invention can be used, for example, in a washtub, a washing tub and Multiple standard springs with resilience to accommodate predetermined liquid levels in bathtubs can be provided. Alternatively, a removable spacer on the shaft 17 or the device in the filling position, with spring compression means (not shown) in the form of a threaded collar; It may also be possible to selectively change the liquid head pressure that can be supported.

To empty the liquid container fitted with the second device, the cap 12 is pulled back against the restoring force of the spring 12. the free end of the pin 23 extends next to the slot 26 in the boss 25. the cap so as to engage the valve member 6 in the open position, thereby retaining the valve member 6 in the open position. Rotate 12.

Those skilled in the art will appreciate that the device of the present invention is easy to assemble for manufacturing, installation, and maintenance purposes. Although it may be obvious that it can be decomposed, there are other significant advantages.

The construction of this plug/outlet assembly allows for an unrestricted flow path and This allows for faster liquid displacement due to the easy formation of a vortex effect.

Additionally, it covers and surrounds internal components that would otherwise trap lint, hair, and other foreign matter. maintenance, reducing costly maintenance due to blockages and wear on moving parts. If required, the entire valve assembly must be removed from the drain attached to the equipment. accessing and removing by removing the sealing member 3 without Can be done.

FIG. 4 illustrates another embodiment of the invention.

This drain/outlet can be used, for example, in showers where backflow of liquid can occur under various circumstances. - or when used for floor drainage for parking lots, the valve member 32 is attached to the An optional perturbation float 30 can be attached to the lower end of the shaft 31. upset fu The funnel 30 seals the valve member 32 when the water level in the sewer conduit 34 rises. Press into sealing engagement with material 33. If necessary, the volume of float 30 be pre-installed to control liquid ingress and prevent further flooding of the floor. It can be selected to operate against a defined water head pressure.

4 and 5 also illustrate another embodiment of the invention in the form of a remote switchgear.

In FIG. 4, the valve support member 34 is slidable on the shaft 36 of the valve member 32. Zero resilient O-ring seal 3 with supporting cylindrical integrally formed boss 35 7.38 between the shaft 36 and the inner wall of the boss 35 on the one hand and the boss 35 on the other hand. A liquid-tight seal is formed between the outer wall of the valve member 35 and the side plate 39 depending from the valve member 32. do. In the wall of the boss 35, the conduit 41 and liquid are passed through the opening 42 in the lower part of the body 43. A fluid conduit 40 is provided in body communication.

When a source of pressurized fluid is supplied through conduit 41, valve member 32 engages the sealing portion. is driven upwardly to seal against the material 33.

By using a compressible fluid such as air, the valve member 32 can be The system is activated by a predetermined force that can be overcome by excess liquid head pressure. can be driven into sealing engagement with the ring member. Instead, in advance Incompressible fluids such as water, oil, etc. to obtain a similar sealing force of a defined magnitude. can be used in combination with a diaphragm pressure accumulator, etc.

FIG. 5 illustrates a convenient form of remote control of the device.

The pressurization device is mounted after the piston 40 and the walling material 43 and is normally located within the wall structure. It includes a cylinder 41 with a check valve 42 retracting into the cylinder. Piston 40 is large It includes a push-out cap 44 and a return spring 45. The cylinder 41 is connected via a check valve 42. And chamber 46! The chamber 46 is connected to the conduit 41.

Pressurized air is selectively discharged from chamber 46 and conduit 41 to chamber 46 . A needle and jet assembly 1J47 is connected to the needle and jet assembly 1J47. knee The dollar and jet assembly 47 is biased into sealing engagement by a spring 48. The tension of this spring is applied to the shaft 4 of the needle and jet assembly. It can be adjusted by turning 9.

The drain plug/outlet device of FIG. Valve member with a predetermined hydrostatic release pressure determined by a biasing force of 48. 32 can be closed by a single push of the cap 44.

Valve member 32 is removed by simply pulling shaft 49 against the biasing force of spring 48. Can be opened. To assist in opening the valve member 32 more quickly, the flap shown in FIG. The funnel 30 may be replaced by a solid block.

There is no need to access the top of the valve member 320 to open or close the device, so if necessary If necessary, an opening gate may be provided in the sealing member.

Various embodiments of the apparatus of the invention can be used for all domestic and commercial residential installations. It is also suitable for sanatoriums, hospitals, etc. This device is suitable for public facilities, floor drains and and industrial applications.

Those skilled in the art will appreciate that numerous modifications and variations can be made to this invention without departing from its spirit and scope. It will be obvious that modifications and variations may be made.

Atsu + et Yuki Mizukai α θ; Summary book The hydrostatic drain plug/outlet assembly consists of an inlet boat and an outlet suitable for connection to fluid conduits. It comprises a hollow body (1) with a mouth boat. The slidable valve member (6) A predetermined amount of hydrostatic pressure to prevent overflow of the liquid inside to support a predetermined amount of hydrostatic pressure from which excess hydrostatic pressure is released. The valve member (6) is brought into sealing engagement with the sealing member (3) by the spring (21). via an intermediate position to force the locked open position and the locked closed position. It is movable between. The valve member is moved between the open position and the locked position by rotation of the valve member (6). It is movable between locked and closed positions.

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Claims (10)

[Claims] 1. Hollow body portion with an inlet port and an outlet port suitable for connection to a liquid conduit and, A sealing means attached to said inlet port and an opening remote from said sealing means. a valve member movable between a closed position and a closed position in sealing engagement with said sealing means; and resilient biasing means for forcing the valve member toward the closed position. A drain plug/outlet device for a liquid holding container featuring features. 2. The apparatus of claim 1 including locking means for selectively locking said valve member in an open position. Place. 3. Claim 1 or claim 2 further comprising locking means for selectively locking the valve member in the closed position. is the second device. 4. The biasing means selectively changes the bias to force the valve member toward the closed position. 4. A device as claimed in claim 1, wherein the device is adjustable to achieve 5. in use, preventing contact between said biasing means and foreign objects entering said inlet port; Any one of claims 1 to 4, wherein a cover means is attached to the biasing means. equipment. 6. The valve member includes a rotating member having a frusto-conical sealing surface. An apparatus according to any one of claims 1 to 5. 7. The locking means includes one or more projections extending perpendicularly to the shaft of the valve member. An apparatus according to any one of claims 1 to 6. 8. The locking means is configured to selectively hold the valve member in an open or closed position. one or more slotted recesses for accommodating respective projections on the shaft; 8. The apparatus of claim 7. 9. The locking means guides the valve member to an open position or a closed position when the valve member is rotated. 9. The method according to claim 1, further comprising one or more sloping surfaces for engaging a corresponding guiding surface. any device. 10. The biasing means includes a compressible or incompressible fluid associated with a pressure accumulation means. 10. A device according to any one of claims 1 to 9.