KR20100114272A - A water leakage cutoff device using cellulous sponge block and water purifier using that - Google Patents

Abstract

PURPOSE: A water leakage cutoff device using a cellulous sponge block, and a water purifier using the same are provided to simplify the structure of the water leakage cutoff device and facilitate the maintenance thereof. CONSTITUTION: A water leakage cutoff device using a cellulous sponge block includes a body(1), a cover, a valve, a lever(4), a sponge block, a stopper(6), a sponge pressing spring and a valve operating spring(8). The body is shaped in box, forms a sponge block position(11) at the floor thereof, and includes an absorption hole at the floor of the sponge block position. The cover includes a spring fixing hole to which the sponge pressure spring is fixed and covers the upper portion of the body. The valve includes an inlet hole(32) and an outlet hole(33) and opens and closes a path through the rotation of a valve axis(31).

Description

A water leakage cutoff device using cellulous sponge block and water purifier using that}

The present invention relates to household goods, which is used in water-using devices such as water purifiers, refrigerators, beverage vending machines, automatic coffee machines, etc. to detect water leakage and automatically supply water to the device when a leak occurs. It relates to a leakage breaker for blocking, and a water purifier applying the same.

A conventional leak breaker is composed of a leak detector, which is a sensor, and a shutoff valve that receives a signal from the leak detector and shuts off a pipeline through which liquid flows.

Various types of leakage breakers have been developed and used, mainly electronic, and the mechanism is very complicated, expensive, and electricity must be continuously supplied by using a battery or the like during use, and there is a high risk of malfunction.

A mechanical leak detector is a paper-spring type in which a spring is attached to one end of a lever to which a contact terminal is attached, which is tied with a paper string from the outside. If the paper string is wet and the tension is weakened, the paper string is broken by the restoring force of the spring, and the contact terminals are in contact with each other to flow electricity. Such a paper string-spring leak detector is relatively simple in structure, but is less reliable because the tension of the paper varies greatly depending on external conditions, especially humidity.

Recently, patent registration No. 10-0858189 "Leakage Detector Using Sponge Paper and Leakage Breaker Using It" is used to expand the sponge paper by the leaked water using the sponge paper which expands in volume when water is absorbed. It describes a method of detecting a leak in a manner in which the electric terminal is in contact, and when the leak is detected, the electric actuator operates to block a valve provided in the pipe to which water is supplied. This patent invention has a very simple and reliable leak detection means by using the property that the sponge paper absorbs water and expands, but the production cost is high and electricity is supplied because it adopts a relatively expensive electric actuator. If not, there is a problem that can not work.

As described above, all of the conventional leak detectors are very complicated in structure, and thus have a high probability of failure and are expensive. And most of them are disposable, and once operated, they lose their function, so the inconvenience of having to replace them with new ones and the high maintenance cost burden.

Currently, water purifiers and cold and hot water devices that are directly connected to water pipes are commonly used in homes and offices, and water pipes are directly connected to refrigerators so that cold water and ice can be directly used. In addition, various beverage vending machines, such as coffee, are also widely used to supply water to the water pipes from the outside and to dilute the beverage raw material in water for drinking.

In the case of a device using water as described above, if a leak occurs, the leak itself is also lost, but there is a risk of causing a second accident due to flooding and causing a large accident such as a fire caused by an electric short circuit.

Leakage breaker is very important in the equipment that uses water indoors as above, but all of the conventional ones are complicated in structure and reliable, so there is a high possibility of malfunction, maintenance is difficult, and expensive, so it is expensive to use for home or office use. The burden is great. And there is a problem that can not operate when the electricity is not supplied in the way using most of the electricity.

Therefore, there is a need for a mechanical leak breaker that is simple in structure, inexpensive, and easy to maintain.

Leakage breaker 10 of the present invention is coupled to the shaft of the valve body (1), a cover (2) covering the upper end of the body, a valve (3) mounted inside the body to form an appearance A lever 4 for opening and closing a valve, a sponge block 5 provided on one side of the body, a stopper 6 attached to an upper portion of the sponge block, and a sponge pressure spring attached to the cover to compress the stopper downward. (7) and a valve actuating spring (8) attached to the inner side of the body to push the lever (4) horizontally.

When water leaks from a device such as a water purifier and flows to the bottom, water is absorbed into the sponge block 5, and the sponge block 5 absorbing water is rapidly deteriorated in strength, so that the sponge pressurized spring 7 By the compressive force of), it falls down with the stopper 6 attached to its upper side, and the stopper of the stopper 6 is released from the contact plate of the valve actuating spring 8. In this way, when the stopper 61 of the stopper 6 is disengaged from the contact plate of the valve actuating spring 8, the compressed compression coil spring extends and pushes the lever 4 while the lever 4 is pushed. The shaft 31 is rotated to close the valve to block a flow path through which raw water is supplied.

The water purifier of the present invention attaches the leak breaker 10 to the bottom of the water purifier, and connects the water supply pipe 104 to the inlet 32 and the outlet 33 of the valve 4 of the leak breaker 10. The raw water supplied to the water purifier is configured to be supplied to the water purifier through the leak breaker 10. If a leak occurs and water accumulates on the bottom of the water purifier, the leak breaker 10 is operated to block water from being supplied to the water purifier.

Leakage breaker of the present invention is very simple and compact in structure, there is no fear of failure, the operation is sure, easy to use, can be used semi-permanently after the use of simple replacement parts, can be produced at a low price .

Since the leak breaker of the present invention does not use electricity for detecting leaks and driving the valve, the leak breaker can be used in a device installed where electricity is not supplied, and a battery is not required, and it operates normally even in a power failure.

The water purifier using the leak breaker of the present invention is automatically cut off the supply of raw water when a leak occurs, there is no waste of water due to leakage, there is no fear of secondary damage due to leakage.

1 to 4, the leak breaker 10 of the present invention, a box-shaped body (1) forming an outer shape, a cover (2) covering the upper end of the body, a valve mounted inside the body (3), a lever (4) coupled to the shaft of the valve to open and close the valve, a sponge block (5) provided on one side of the body, a stopper (6) attached to the upper portion of the sponge block, attached to the cover And a sponge pressing spring 7 for pressing the stopper downward, and a valve actuating spring 8 attached to the inner side of the body to push the lever 4 horizontally.

Body (1) is a built-in components of the present invention, the sponge block seat 11 which can be mounted to the sponge block 6 is formed on one side, the bottom of the sponge block seat 11 is an absorption hole ( 12 is formed, and is connected to the sponge block seat 11 is formed with an arc-shaped guide groove (13). The guide groove 13 has a low inner side to allow the lever 4 to rotate.

As shown in the bottom view of FIG. 5, the cover 2 covers the single end opening of the body, and fixes the sponge pressing spring 7 for pressing the stopper 6 mounted on the body 1 from the edge thereof. Spring fixture 21 is provided, and the guide cover 22 for sealing the upper surface of the guide groove of the body (1) is formed. When the metal coil spring is used as the sponge pressure spring 7, the outer surface of the coil spring is fixed to the spring fixture 21 of the cover 2 so that the spring can be stably fitted to the lower surface of the cover 2. It may be configured in the form of a sleeve or a protrusion for fixing the inner surface of the spring.

The cover 2 may be coupled to each other by a screw on the top of the body 1, or when the body and the cover are made of plastic, the coupling groove and the coupling protrusion are formed on the body and the cover, respectively.

The valve 3 is fixed to the bottom of the body 1 so that the valve shaft 31 is perpendicular to the bottom surface, the inlet 32 and the outlet 33 are provided at both ends is connected to the hose for supplying water. . The valve may be any type of valve in which the opening and closing device 34 opens and closes by opening and closing the valve 34 by rotating the valve shaft 31 such as a ball valve and a butterfly valve. The valve is provided with a coupling flange 34 at the bottom, and may be fixed by a method such as screwing or adhesive bonding to the bottom of the body 1.

The valve 3 may be separately manufactured as described above and attached to the bottom of the body 1, but the inlet 32 and the outlet 33 are formed directly on the body 1, and a hole is formed at the position where the valve is to be placed. It may be configured by directly inserting the opening and closing device 34 coupled to the valve shaft 31 by processing.

The lever 4 is coupled to the valve shaft 31 of the valve to rotate the valve shaft. The lever has a rod shape having a predetermined length, one end of which has a coupling portion 41 that can be coupled to the valve shaft 31, and the other end of the lever has a contact protrusion 42 coupled to the valve operating spring 8 to smoothly. It is good to make contact. The coupling portion 41 and the valve shaft 31 are coupled to each other so that rotation does not occur, and may be coupled in such a way as to fit together, use a key, or spline coupling.

The contact protrusion 42 of the lever 4 has a spherical end, so that the plate in contact with the contact protrusion 42 can stably contact the contact protrusion 42 even if the lever rotates.

Sponge block 5 is attached to the inner corner of the bottom of the body (1). A plurality of absorbent holes 12 penetrating the bottom are formed at the bottom of the body 1 in which the sponge block is installed. And it is good to form a groove to a certain depth so that the bottom of the sponge block can be inserted into the bottom of the body (1) to be able to fit the sponge block in this groove.

Sponge block (5) is produced by cutting the cellulose sponge into a columnar shape of a certain height, cellulose sponge is applied to the flexible fiber, such as starch adhesive, which is easily released in water, and the fiber coated with the adhesive Coarse arrangement so that many voids are formed inside, and dried to produce a solid body. The solid cellulose sponge maintains a rigid state of rigidity in a dry state, but when contacted with water, the water is adsorbed into the cellulose sponge by capillary action through the pores on the surface and adsorbs water. One cellulose sponge turns the material into a very flexible material because the adhesive absorbs water and the strength drops dramatically. Such cellulose sponges are manufactured and marketed as commodities, but are used as cleaning sponges and the like.

The stopper 6 is attached to the upper surface of the sponge block 5 so as to cover the upper surface of the sponge block 5, and at one end, the stop jaw 61 protrudes upward. The stopper causes the contact plate of the valve actuating spring 8 to be caught. It is preferable to form a groove with a predetermined depth so that the top surface of the sponge block 5 can be inserted into the bottom surface of the stopper so that the sponge block can be inserted into the groove.

 A sponge pressing spring 7 is attached to the cover 2 so that two or four springs can be attached to a position where the spring can press the edge of the stopper 6 when the cover 2 is coupled to the body 1. do. The sponge pressurizing spring is applied to the upper surface of the stopper 6 by pressing it, and when the sponge block 5 absorbs water and weakens, the sponge block is pressed downward with the stopper 6 to stop the stopper. Allow 61 to be disengaged from the contact plate of the valve actuating spring 8.

It is common to use a metal coil spring as the sponge pressing spring 7, but in some cases, an elastic body such as a leaf spring or rubber may be used.

The valve actuating spring 8 is composed of a spring guide 81 attached to the side of the body, a compression coil spring 82 fitted to the spring guide, and a contact plate 83 fitted to the front of the compression coil spring. do.

The spring guide 81 may have a pipe shape to allow the compression coil spring 82 to enter the guide, or may have a rod shape to allow the spring guide 81 to enter the spring. It is advantageous that the length of the spring guide is long enough not to cause interference in close proximity to the stop 61 of the stopper 6, so that the spring can be stably induced.

The compression coil spring 82 is such that the spring constant maintains a predetermined value or more, and has a sufficient free length to push out the lever 4 to the end.

The contact plate 83 is coupled to the front of the compression coil spring 82, is made of a rigid plate of a predetermined size, one side is formed with a coupling protrusion coupled to the compression coil spring 82, the other side is The contact protrusion 42 of the lever 4 is in contact. The surface of the contact plate 83 in contact with the contact protrusion 42 of the lever 4 is preferably formed to form a spherical seat so that the end can be in stable contact with the spherical contact protrusion.

The inlet of the guide groove 13 of the body 1 is located in front of the contact plate 83.

The leak breaker configured as described above is coupled to the bottom of the device, which is a place where the leak breaker can detect a leak of the device used. Normally assembled state of the leakage breaker is installed across the middle portion of the stopper (6) provided on the upper surface of the sponge block (5) in the state that the valve operating spring (8) is maximally compressed, the contact plate 83 The lower surface is in the state which hangs on the stopper 61 of the stopper 6. In addition, the inlet 32 and the outlet 33 of the valve 4 are connected with a hose for supplying water to a device used for the leak breaker such as a water purifier, and the valve is in an open state.

When water leaks from the device in the normal assembly state as described above, or water flows to the floor, water penetrates into the absorption hole 12 formed in the lower surface of the body 1 and is absorbed into the sponge block 5. The water absorbing sponge block 5 is sharply lowered in strength and falls down with the stopper 6 attached to the upper side by the compressive force of the sponge pressing spring 7, and the stopper of the stopper 6 ( 61 is released from the contact plate 83 of the valve actuating spring (8). When the stop 61 of the stopper 6 is separated from the contact plate 83 of the valve actuating spring 8 as described above, the compressed coil spring 82 compressed as shown in FIG. The plate 83 moves along the guide groove 13 of the body 1 while pushing the contact protrusion 42 of the lever 4. At this time, the lever 4 rotates the valve shaft 31 to close the valve to block a flow path through which raw water is supplied.

A typical water purifier, as shown in Figure 7, the body 101 forming the appearance, the reservoir 102 for storing the filtered water inside the body, the heating tank to collect and heat the water of the reservoir to produce hot water ( 103), a water supply pipe 104 connected to an external water supply device such as a water pipe to supply water to the reservoir, a filter 105 installed in the middle of the water supply pipe to filter solids in the water and adsorb harmful chemical components, Installed inside to sterilize microorganisms in the water, a power supply 107 for supplying electricity to each part of the water purifier, a water intake 108 to collect the purified water, and required to cool the water in the reservoir It consists of components, such as the cooling apparatus 109 which produces the refrigerant | coolant which becomes.

The simplest type of water purifier includes a water supply pipe 104 connected to the water reservoir 102, the filter 105, and the filter 105 inside the water purifier body 101 to receive water from an external water supply device such as a water pipe, and an intake port ( 108), there is a simple water purifier functioning to remove only impurities in the water.

The water purifier of the present invention attaches the leak breaker 10 to the bottom surface of a conventional water purifier as described above, and connects the upstream side water supply pipe 104 of the filter 105 to the valve 4 of the leak breaker 10. Combined with the inlet 32 and outlet 33 of the). In this way, the raw water supplied to the water purifier is supplied to the water purifier through the leak breaker 10, and if the leak occurs and water accumulates at the bottom of the water purifier, the leak breaker 10 is operated to block the water supply to the water purifier. .

The leak breaker of the present invention is used in various devices using liquids such as water and oil.

1 is a plan view of a leak breaker with the cover open.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along line B-B in FIG. 1.

4 is a cross-sectional view taken along the line C-C of FIG.

5 is a bottom view of the cover.

6 is a plan view of a leak detector in which a valve is closed by detecting a leak.

7 is a block diagram of a water purifier having a leak detector.

※ Important Component Number

1: body, 2: cover, 3: 4: lever, 5: sponge block, 6: stopper,

7: Sponge pressurized spring, 8: valve actuated spring, 10: leak breaker.

Claims (3)

In the form of a box, a sponge block seat 11 is formed at the bottom, the bottom of the sponge block seat 11 is formed with an absorption hole 12 which is a through hole, and is connected to the sponge block seat 11 in the shape of an arc The guide groove 13 is formed, the body (1); Covering the upper end of the body (1), the cover is provided with a spring fixture (21) to which the sponge pressure spring (7) is fixed; A valve (3) fixed to the inner bottom of the body (1), having an inlet (32) and an outlet (33), wherein the valve shaft (31) rotates to open and close the flow path; Coupling portion 41 is coupled to the valve shaft 31 of the valve 3 to rotate the valve shaft 31 of the valve 3, the end is provided with a contact protrusion 42, the lever 4 ; Sponge block (5), which is coupled to the sponge block seat 11 of the body, dried to form a plurality of voids by applying an adhesive released in water to a flexible fiber, the sponge block (5); A stopper 6 attached to the upper surface of the sponge block 5 so as to cover the entire upper surface of the sponge block 5, the stopper 61 protruding upward on one side thereof; A sponge pressing spring (7) attached to the spring fixture (21) of the cover (2) to press the stopper (6) downward; And to push the contact projections 42 of the lever 4 horizontally, the spring guide 81 is attached to the side of the body 1, the compression coil spring (82) fitted to the spring guide 81 And a contact plate fitted to the front of the compression coil spring 82 and in contact with the contact protrusion 4 of the lever 4 and assembled with the lower side caught by the stopper 61 of the stopper 6. A valve actuating spring 8, consisting of 83; It is configured to include, a leakage breaker (10). The method of claim 1, The contact protrusion 42 of the lever 4 is spherical; The contact plate 83 of the valve actuating spring 8 is formed with a spherical seat on a surface in contact with the contact protrusion 42; Characterized in that, the leakage breaker (10). Water purifier body 101, a water reservoir 104 provided inside the water purifier body 101, a water supply pipe 104 for supplying water to the water reservoir from an external water supply device such as a water pipe, and a filter 105 installed at the water supply pipe 104. In a conventional water purifier comprising a); A water leakage breaker (10) according to claim 1 or 2, which is installed at the bottom of the water purifier, and the water supply pipe (104) of the water purifier is connected to an inlet (32) and an outlet (33) of the valve (3); Water purifier, characterized in that further provided.

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