JPS59210132A - Apparatus and method for taking out fluid in small quantities - 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 The present invention relates to a fluid dispensing device and method for dispensing a quantity of fluid from a fluid source to a tank. Typically, but not exclusively, such devices are used within the tank of a flush toilet and can be used to add a quantity of disinfectant, fragrance or deodorant to the water within the tank.

Whether the additive is in solid or liquid form, it is difficult to ensure that the additive is dispensed at a uniform concentration within the flush toilet tank. The concentration of solid additive placed in the tank will of course depend on the length of time the flush toilet is flushed continuously. Similar problems occur with fluid additives that trickle out from within semipermeable containers.

Some devices, such as those described in British Patent Nos. 876.823, 1.069,213 and 1.044,573, solve this problem when the tank is drained during flushing. The problem was solved by dispensing additive fluid into the water. The present invention solves this problem in a different way, and the present invention, as shown in its preferred embodiment, supplies the additive fluid to the tank itself so that it can be used in the tank and/or in the toilet bowl or urinal. Concerning the prevention or arrest of the growth of undesirable microbiological contaminants within a plant. European Patent Application No. 81
No. 102 391.2 (Publication No. DO 18649) describes an apparatus for dispensing additive fluid from an additive fluid source to a tank of a flush toilet. The delivery device of this European Patent Application No. 80 102391.2 relies on the movement of a float as the water level in the tank falls and rises with each flush. The float is attached to the end of an elastically deformable tube, and the elastically deformable tube is pressed toward the abutment member when the float rises. Air is then vented from the elastically deformable tube and a complex series of valves causes additive fluid to be introduced into the tank from one or more sources of additive fluid. The construction of this device is bulky and uses multiple parts.

According to the invention, in a fluid dispensing device suitable for dispensing fluid from a fluid source into a tank containing a fluid, a first fluid dispensing device arranged to pass said fluid from said fluid source.
a one-way valve, a second one-sided valve, and a connecting device having an elastically deformable portion extending between the first and second one-sided pulps and being elastically deformable in at least a portion thereof; a contact member; and a float member that is mountably disposed within the tank, and the float member is configured to move the elastically deformable portion toward the contact member in response to a displacement of the liquid level within the tank. and is movably disposed to deform the coupling device such that the deformation reduces the volume of the coupling device such that fluid is discharged from the coupling device through the second one-way valve into the tank. A fluid dispensing device is provided.

Preferably, the coupling device is arranged such that when the fluid flows between the first and second one-sided valves, the fluid passes through and comes into contact with the elastically deformable portion. be done.

Advantageously, substantially the entire coupling device is elastically deformable.

Said float member is preferably arranged pivotably relative to said abutment member and supports a flange suitable for movement towards the abutment member to push and deform the coupling device. However, in other embodiments, the abutment member may be fixed relative to the float member and may be arranged to move towards another flange, thereby causing the elastically deformable portion of the coupling device to It may be deformed.

The first and second one-sided pulps may be Bunsen pulps made of silicone rubber for the purpose of simplifying the structure and reducing the cost. Other suitable pulping equipment may be used.

Preferably, the fluid dispensing device includes a regulating device that determines how much fluid is to be dispensed each time the liquid in the tank is lowered and raised. The adjustment device includes a first protrusion fixed to the abutment member, a second protrusion that can be suppressed to the first protrusion and fixed to the float member; May include.

The deformation of the elastically deformable part of the coupling device towards the front connecting part may be caused by a rise in the liquid level in the tank or, conversely, by a fall in the liquid level in the tank. It's okay.

Suitable fluids to be added to flush toilet tanks include mixtures of amphoteric cleaners, polycarboxylic acids, disinfectants, and optionally perfume oils. The fluid source may be a rigid, fluid-tight container and may be provided with a window for sensing the liquid level within the container. Such a container may be suitably mounted inside the tank of a flush toilet with its top located above the highest water level of the tank. Alternatively, the fluid source may be a disposable bag containing the fluid that can be pierced with a hollow needle. The inside of the hollow needle is in communication with the first one-sided bulb.

DESCRIPTION OF THE EMBODIMENTS For a better understanding of the invention and to illustrate embodiments of the invention, reference will now be made to the accompanying drawings.

Referring to the drawings, FIGS. 1 and 2 show a generally flat and vertically oriented cuboidal container 1 without a lid on top. The container 1 serves as a fluid source and has one opening 3 through which the fluid flows out. The opening 3 is surrounded by a cylindrical flange 5, and a first Bunsen pulp 7 made of silicone rubber is attached to cover the cylindrical flange 5. One end of an elastically deformable silicone rubber or neoprene tube 9, which serves as a coupling device, is fitted onto the first Sonzenbarzo T. A second Bunsen pulp 11 is mounted on the other end of the tube 9, which is the free end.

The second Bunsen pulp is also made of silicone gel or neoprene.

A U-shaped cross-section member 13 depends from the bottom of the container 1 and is arranged partially surrounding the flange 5 around the opening 3. The tube 9 extends over the entire length of the U-shaped section 13 and projects from its end.

A wedge member 15 having a cylindrical cross-section is arranged between the arms at the bottom of the U-shaped cross-section member, and this wedge member 15 functions as an abutment member. The tube 9 extends between the wedge member 15 and the bottom of the U-section member 13.

The pair of pivot arms 17a, 17b are connected to the U-shaped cross-section member 1.
3 and is journalled on a common shaft extending between the U-shaped cross-section members and adjacent their rear walls. The two pivot arms extend slightly divergently in a plane extending generally below and apart from the container 1. Adjacent to the second Bunsen pulp 11, a plate 19 of plastic material is mounted between pivot arms 17a and 17b so as to be able to press onto the lower end of the tube 9. The tube 9 is located between the plate 19 and the wedge member 15. This results in the following two points. Firstly, the tube 9 will be swayed in a straight line, and secondly the tube 9 will be deformed between the plate 19 and the wedge member 15, thereby reducing its volume. This is something that can be done. The pivoting movement range of pivoting arms 17a and 17b is
It will be seen that determining the amount of pressure to press. To limit this range of movement of the pivot arms, one or more projections 21 may be attached to one or both of the pivot arms. Then, the protrusion 21 becomes the pivot arm 1
It can abut the lower edge of the U-shaped cross-section member 13 so as to limit the movement of 7a and 17b.

The free ends of each of the pivot arms 17a and 17b extend into and are affixed to the curved surface of a float member 230, which has a hollow cylindrical cross-section. The float member 23 may be made of plastic material. The axis of the cylindrical portion of float member 230 lies in a plane shared by pivot arms 17a and 17b.

(Operation of Example) 2 Next, the operation of the apparatus will be explained. The apparatus shown in FIGS. 1 and 2 is placed in the tank of an empty flush toilet, and the tank is allowed to fill with water. When so done, the float member 23 will rise and the pivot arms 17a and 17b will pivot relative to the U-section member 13 about their own pivot lines. The plate 19 will press against the elastically deformable tube 9 and compress the tube 9 against the wedge member 15. Since the device is not yet filled with additive solution, nothing happens except that air is expelled through the second Bunsen pulp 11.

When the tank is full, additive fluid is introduced into the container 1. The first Bunsen pulp 7 is made fairly rigid so that fluid cannot freely enter the interior of the tube 9. So the first Bunsen pulp 7 is in tube 9
When the water in the flush toilet is flushed and the tank is emptied, the float member 23 descends and there the plate 19 will be moved away from the wedge member 15 and the volume of the void within the tube 9 will be expanded. The air pressure will force the fluid from the container 1 through the first Bunsen pulp 7 into the tube. 9.

After the tank is emptied, it begins to fill with water again. At this time, the plate 19 gradually presses the tube 9 against the wedge member 15 and compresses it, so that the volume inside the tube 9 is reduced and the fluid flows into the tank into the second Bunsen pulp 11.
is discharged through the

The first Bunsen pulp 7 effectively prevents fluid from being forced back into the container 1, but when the water level in the tank next drops, the fluid will flow from the container 1 into the tube 9 again. Allow to be filled.

The above-described device is suitable for use in tank control, as for example when it is fitted to a hood-type control device such as that described in UK Patent Application No. 2100312A, co-pending with the UK patent application of the present invention. The normal state of operation is when the water is emptied, but this is especially true when the water is filled and immediately returned to the sky. The compressible tube 9 is therefore relaxed in normal conditions, which prolongs its useful life.

DESCRIPTION OF THE SECOND EMBODIMENT The variant embodiment shown schematically in FIG. It is suitable for In this embodiment, the plate 19' is arranged above the tube 9', and the wedge member 15' is an abutting member.
is at the bottom of the tube. The tube is then relaxed most of the time and compressed only for relatively short periods when the tank is emptied and refilled.

As with the embodiment shown in FIGS. 1 and 2, this device is also intended to increase tube life.

The embodiment shown in FIG. 6 differs from the embodiment in FIG. 2 in that the additive fluid container 1' is located outside the tank, and the first Bunsen pulp 7' has a suitable length 5. Restricting device) 23 is different in that it is connected to the float member by a pipe 24. The tubing 24 may be of any suitable material, such as plastic or metal, although stainless steel is preferred because it is strong, smart, and less reactive with additive fluids.

By locating the container 1' outside the tank, it is easier to refill the container with additives as a whole;
Furthermore, for example, a perfume/J' mounted on an adjacent wall
Devices such as an l-out device etc. can also be built in.

[Brief explanation of the drawing]

FIG. 1 shows a perspective view of a device according to a first embodiment of the present invention, and FIG.
The figure shows a longitudinal sectional view taken along the line ■--■ in FIG. 1, and FIG. 6 shows a longitudinal sectional view similar to FIG. 2 of the second embodiment of the apparatus of the present invention. 1.1'... Container (fluid source) 7.7'... First Bunsen pulp (first one-way valve) 9, 9'...
・Tube (coupling device) 11...Second Bunsen pulp (second unidirectional valve) 15.15'...Cylindrical wedge member (contact member) 21...Protrusion (range of motion 6 substitute) Person, Materials, Form of Amendment (formality), June 11, 1980, Commissioner of the Japan Patent Office, 1, Indication of the case, Patent Application No. 30132 of 1982, 3, Relationship with the case of the person making the amendment, Address of the patent applicant, 4 , Agent 5, Date of amendment order May 29, 1980 6, Amendment number bMAO')

Claims (1)

Scope of Claims: (1) A fluid dispensing device suitable for dispensing fluid from a fluid source into a tank containing the fluid, wherein a first direction is arranged to pass the fluid from the fluid source. a valve, a second one-way valve, a coupling device extending between the first and second one-way valves and having an elastically deformable portion that is elastically deformable in at least a portion thereof, and an abutment member; , a float member mountably disposed within the tank, the float member deforming the elastically deformable portion toward the abutting member in response to displacement of the liquid level within the tank. movably arranged such that the deformation reduces the volume of the coupling device such that fluid is discharged from the coupling device through the second one-way valve into the tank; A fluid dispensing device characterized by: (2. In the device according to claim 1, when the fluid flows between the first and second one-way valves, the fluid flows through the elastically deformable portion. A fluid dispensing device arranged to pass through and contact the elastically deformable portion. (3) A device according to claim 1 or 2, wherein substantially the entire coupling device is elastically deformable. (4) A fluid dispensing device according to claim 1, 2 or 6, wherein the elastically deformable portion of the coupling device is made of a silicone dem. (5) A fluid dispensing device according to any one of claims 1 to 4, wherein the float member is pivotally arranged. The device according to any one of claims 1 to 5, wherein the float member is arranged movably with respect to the abutment member. (7) Claims 1 to 5 7. The apparatus of claim 6, wherein the first and second one-way valves are Bunsen pulp. A fluid dispensing device in which the Bunsen pulp is made of silicone rubber. (9) In the device according to any one of claims 1 to 8, the fluid dispensing device controls the range of motion of the float member. 10. A fluid dispensing device comprising a restricting device, thereby adapted to regulate the amount of fluid to be dispensed. The device is a fluid dispensing device arranged with respect to the abutment member such that when the liquid level in the tank rises, the elastically deformable portion is pressed against the front abutment member and deformed. In the device according to any one of claims 1 to 9, the connecting device is configured such that when the liquid level in the tank is lowered, the elastically deformable portion is fixed to the contact member. A fluid dispensing device arranged to be deformed by being pressed by the abutment member.04 In the device according to any one of claims 1 to 11, the fluid dispensing device 13. A fluid dispensing device used to discharge fluid into a tank of a flush toilet. True A device according to any one of claims 1 to 12, wherein the fluid source is located inside the tank. Installation is enabled with fluid dispensing device. (14) The device according to any one of claims 1 to 12, wherein the fluid source is a fluid dispensing device that can be attached to the outside of the tank. a fluid dispensing method of dispensing fluid into a tank, the change in liquid level in the tank being used to compress a float member, a coupling device disposed between a first and a second one-way valve; and The compression causes the fluid to be displaced from within the coupling device, and the fluid to be discharged is the second fluid.
A method for dispensing a fluid, characterized in that the liquid is unidirectionally passed through the tank into the tank.