KR20180118017A - switching valve changed automatically opened state - Google Patents

Abstract

The present invention relates to an opening and closing valve and, specifically, to an opening and closing valve which prevents malfunction of a closed valve when water leaked is removed in a state in which a flow path of a valve is blocked due to a leakage. To this end, the present invention comprises: a buoyancy member ascending according to the filling up of water; and an opening and closing member moving together with the movement of the buoyancy member with buoyancy.

Description

A switching valve is automatically switched to an open state when a closed valve is removed.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open / close valve, and more particularly, to an open / close valve that prevents a malfunction of a closed valve when water is leaked in a state where a flow path of the valve is blocked due to leakage.

2. Description of the Related Art Generally, a valve is installed in a pipe for transporting high-pressure gas or fluid, and is selectively opened and closed to control the transfer of fluid.

These valves have various structures depending on the purpose of use.

For example, a valve used in a water purifier usually uses a solenoid valve.

The solenoid valve automatically and repeatedly opens and closes the flow of the fluid due to the nature of the water purifier that the fluid must flow and be repeatedly blocked.

The solenoid valve is provided with a water leakage sensor for detecting the water leakage generated by the water purifier. When a water leakage is detected by the water leakage sensor, the solenoid valve informs the user of the occurrence of water leakage, The supply is cut off.

That is, the solenoid valve is configured to open the flow of the fluid when the power is applied, and to shut off the flow of the fluid by shutting off the power when the leakage occurs.

However, since the solenoid valve normally supplies power, when the leakage reaches the power supply, the leakage circuit breaker is activated to cut off the building power, so that another product that is normally supplied with power, that is, a refrigerator or an aquarium filter There is a problem that another power loss occurs due to the power supply being cut off to a product that requires power supply.

Recently, a valve for shutting off the supply of raw water by the buoyant force of the water leaking without using the electric power source in accordance with the heat has been disclosed in the Japanese Patent No. 10-1239324.

A buoyant member which is lifted and lowered in accordance with the height of the water, and an opening and closing member which moves together with the buoyancy of the buoyancy member when the buoyancy member is moved by the buoyancy of the buoyancy member, A plunger rod which is accommodated in a housing space provided in the plunger case and moves in the longitudinal direction; a packing provided at a tip end of the plunger rod so as to be selectively in close contact with the inflow hole; A stopper is provided at the upper end of the accommodating space and a spring surrounding the plunger rod is positioned between the stopper and the plunger so that the plunger moves together with the buoyancy member and the plunger rod is returned By the elastic force of the spring provided in the storage space, And one will ever with the plunger rod is lowered.

However, in order to allow the plunger to move up and down together with the lifting and lowering of the buoyancy member, the elastic force of the spring is set to be weaker than the magnetic force of the magnet mounted on the buoyancy member, There is a problem in that, in order to open the on-off valve, the valve is disassembled and the plunger rod with the packing is artificially lowered.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a water purifier for a water purifier, To be converted.

To this end, according to the present invention, there is provided a valve comprising a buoyancy member that ascends and descends according to seawater of water, and an opening and closing member that moves together with buoyancy of the buoyancy member,

The plunger rod includes a plunger case, a plunger rod, and a plunger rod. The plunger rod is accommodated in a storage space provided in the plunger case and moves in the longitudinal direction. And a plunger is provided at a rear end of the plunger rod, and a bushing is provided at a tip end of the accommodating space so that the plunger rod can be operated in the up-and-down vertical direction without being moved left and right, The outer circumference of the plunger rod is brought into close contact with the outer circumference of the plunger rod so that the outer circumference of the plunger is brought into close contact with the inner circumference of the storage space and the circulation portion is provided on the inner circumference or the outer circumference of the bushing, So that the vacuum pressure is not generated.

Further, the circulation part is provided to the inner periphery of the storage space deeply in the longitudinal direction than the position of the bushing provided in the storage space of the plunger case.

The inner peripheral edge of the outer periphery of the plunger rod has a circular shape and the inner peripheral edge of the bushing has a shape such as a triangular, square, hexagonal, or octagonal shape in which the circular shape is in close contact with the outer peripheral surface, And the circulation part is provided.

Further, the plunger rod is made of a metal material made of a material higher than the specific gravity of water, and attached to the plunger having magnetism, so that the plunger rod is lowered by its own weight.

And a spring for wrapping the plunger rod between the bushing and the plunger to lower the raised plunger rod when the plunger rod is made of a synthetic resin material.

Therefore, in the present invention, when water leakage from a valve shut off due to leakage is removed, raw water is circulated through a bushing and a plunger case or a circulation part provided between a bushing and a plunger rod so that a vacuum pressure is not generated in a storage space provided with a plunger Thereby preventing malfunction of the valve.

1 is a cut-away view of a conventional valve.
FIG. 2 is a perspective view showing the entire structure according to an embodiment of the present invention; FIG.
FIG. 3 is a bottom perspective view showing the entire structure according to an embodiment of the present invention. FIG.
4 is a sectional view of the valve of the present invention.
5 is a cross-sectional perspective view of a valve of the present invention.
6 is an exploded view of a valve of the present invention.
7 is a cross-sectional view of a state in which leakage flows into an inner groove provided in a bottom frame;
8 is a use state sectional view showing a state in which the open / close valve is raised and lowered by using buoyancy to shut off the flow path.
9 is a sectional view showing a state in which the shutoff valve is lowered and opened in FIG.
10 is a cross-sectional perspective view showing a state in which a circulation part is provided with an inner peripheral edge of a storage space provided in the plunger case;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a valve that is shut off due to leakage of water, and automatically switches the valve from a closed state to an open state when water leakage is removed.

In order to achieve the above-described effects, the construction of the present invention includes a body 100 having an inlet 110 through which raw water flows and an outlet 120 through which raw water is discharged, as shown in FIGS. 2 through 6,

An opening and closing member 200 is installed in the body 100 and a flow passage 130 through which the raw water is moved is formed between the body 100 and the opening and closing member 200.

3 to 4, a holder 320 having an inlet hole 321 communicating with the flow path 130 is formed between the body 100 and the opening and closing member 200 to support the diaphragm plate 310 And is installed in the body 100.

When such a valve is installed in the water purifier, it is installed in the bottom frame 1 of the water purifier as shown in FIGS. More specifically, the buoyancy member 400 is installed in the inner groove 2 formed in the bottom frame 1.

The inner diameter of the inner groove 2 is larger than the outer diameter of the buoyancy member 400 so that the buoyancy member 400 can be easily lifted. It is preferable to make it wider.

7, the bottom frame 1 is inclined toward the inner groove 2 so that water leaking into the inner groove 2 inserted with the buoyancy member 400 can easily flow desirable.

In addition, the buoyancy member 400 is installed so as to be inserted into the bottom frame 1, which is the lowermost end of the water purifier, to minimize the contact with parts provided in the water purifier by water leakage, thereby preventing parts from being damaged.

At this time, the buoyancy member 400 is preferably made of a material having a specific gravity smaller than that of water so as to rise by water.

That is, the buoyancy member 400 may be made of foamed styrofoam, plastic, or the like.

In addition, a magnet 410 is provided in the buoyancy member 400.

The magnet 410 may be formed inside the buoyancy member 400 by an insert injection method at the time of manufacturing the buoyancy member 400 or may be formed in the buoyancy member 400 After the magnet 410 is received in the receiving portion 401 provided at the center of the magnet 410, the finishing member 402 can be coupled so that the magnet 410 is not separated from the buoyancy member 400. [

At this time, the magnet 410 is used as a means for moving the opening / closing member 200 as described later, and the opening / closing member 200 is moved together with the buoyancy member 400.

6, the opening and closing member 400 includes a plunger case 210 in which a storage space 211 is formed, a plunger case 210 accommodated in the plunger case 210, A packing 230 provided at a distal end of the plunger rod 220 and a plunger 240 provided at a rear end of the plunger rod 220 and a bushing 250 surrounding the plunger rod 220 .

Here, the front end portion of the plunger rod 220 indicates the direction in which the body 100 is formed, and the rear end portion is the direction in which the buoyancy member 400 is installed.

Further, the rear end of the plunger case 210 is installed to pass through the buoyancy member 400, and the tip end of the plunger case 210 is coupled to the body 100.

The diaphragm plate 310 having the holder is located at the joint between the tip end of the plunger case 210 and the body 100 to selectively open and close the flow of raw water.

At this time, the diaphragm plate 310 is preferably made of silicon or rubber.

Therefore, the diaphragm plate made of a rubber material is disposed without a separate packing in the joint provided between the tip end of the plunger case 210 and the body 100, thereby preventing leakage through the joint.

The plunger 240, the bushing 250, the plunger rod 220, and the packing 230 are sequentially accommodated in the accommodating space 211 of the plunger case 210.

Here, the plunger rod 220 having the packing 230 moves along with the movement of the plunger 240.

4, the bushing 250 is provided at the outer periphery of the long axis 221 of the plunger rod 220 so that the plunger rod 220 does not flow to the right and left, Is used as a guiding means for accurately moving the formed inflow hole 321 in the direction in which the inflow hole 321 is located.

The raw water is introduced into or discharged from the lower end of the receiving space 211 of the plunger case 210, that is, the portion where the plunger 240 is accommodated, thereby preventing malfunction due to a difference in pressure between the inside and the outside.

A groove or protruding frame may be formed on the outer circumference of the bushing 250 to circulate the raw water into the storage space 211 as described above so that the circulation unit 270 is formed between the inner circumference of the storage space 211 and the bushing .

In addition, the inner circumference of the bushing 250 has a shape such as a triangle, a rectangle, or a pentagon with a corner, thereby minimizing a contact surface of the plunger rod 220 with the outer circumference of the plunger rod 220, So that the lowering can be easily operated.

In addition, a groove or protruding frame is formed at the inner circumferential edge of the bushing 250 so that the circulation unit 270 is provided at a portion of the plunger rod 220 that is in close contact with the outer circumference of the plunger rod 220, .

As shown in FIG. 10, a groove or protruding frame may be formed at an inner peripheral edge of the storage space 211 deeper than the position of the bushing 250 provided in the storage space 211 of the plunger case 210, 270 may be provided.

That is, the circulation unit 270 can circulate the raw water up to the lower end of the storage space 211 of the plunger case 210, thereby preventing a pressure difference between the inside and the outside.

In order to provide the circulation part 270 in the bushing 250 or the plunger case 210, one or a plurality of grooves may be formed as grooves, and when the protrusion is formed, the plunger rod may be positioned at the center of the storage space It is preferable that a plurality of at least three or more are formed.

According to the present invention, the plunger 240 has a property of a magnet.

The plunger 240 may be formed of a rod-like magnet.

At this time, the plunger 240 and the magnet 410 should be installed so that the polarity formed on the plunger 240 and the polarity of the magnet 410 provided on the buoyancy member 400 face each other with different polarities.

For example, it is preferable that the magnet 410 installed on the buoyancy member 400 be positioned lower than the portion where the plunger 240 is located.

A magnetic field is generated between the magnet 410 and the plunger 240 installed in this manner.

At this time, attracting force and repulsive force are generated between the magnet 410 and the plunger 240 by the magnetic field.

And is fixed at a predetermined position by a magnetic field generated between the magnet 410 and the plunger 240.

The predetermined position is a center position of a force acting on an attraction force and a repulsive force.

Accordingly, it should be understood that the plunger 240 is fixed to the buoyancy member 400 provided with the magnet 410 by the attraction force and the repulsive force.

Therefore, the plunger 240 fixed by the magnet 410 of the buoyancy member 400 moves along with the plunger 240 interlocked with the magnet 410 as the magnet 410 moves together when the buoyancy member 400 moves.

That is, when the buoyancy member 400 is moved upward by the buoyancy force, the plunger 240 moves upward together with the buoyancy member 400. At this time, the plunger rod 220 and the packing 230, which are connected to the plunger 240, .

Therefore, the flow channel 130 is closed by being in close contact with the inflow hole 321 located at the upper portion of the packing 230 to block the supply of raw water.

In addition, the buoyant force generated in the buoyancy member 400 may be removed to open the closed channel 130.

That is, when the leakage water flowing into the inner groove 2 provided in the bottom frame 1 is removed, the buoyancy member 400 is lowered, the packing 230 is separated from the inflow hole 321, and the flow path 130 is opened .

At this time, a discharge port selectively opened and closed may be provided in order to easily drain water from the inner groove 2 formed in the bottom frame 1.

In the present invention, the magnet 410 mounted on the buoyancy member 400 is formed in a ring shape, and the plunger 240 is fixed to the plunger 240 with different polarities. But is not limited to.

For example, since the plunger 240 is made of a metal material, only the repulsive force is generated in the magnet 410 and the plunger 240 provided in the buoyancy member 400, and the plunger 240, when moving the buoyancy member 400, So that they can be pulled upward and moved together.

Also, the magnets 410 of the buoyancy member 400 may be made of a metal material, and the plunger 240 may have the same effect as described above.

When the plunger rod 220 and the plunger rod 220 are made of a metal material that is higher than the specific gravity of the water and generates a repulsive force with the plunger 240 made of a magnet, It can be.

Since the plunger rod 220 and the plunger 240 are higher than the specific gravity of water, when the buoyancy member 400 descends, it can be automatically lowered by its own weight.

The plunger rod 220 is made of a material having a specific gravity lower than the specific gravity of water and is not fixed to the plunger 240 located at the lower end of the plunger rod 220. In order to lower the plunger rod 220 when the plunger 240 descends A spring 260 that surrounds the long axis 221 of the plunger rod 220 is positioned between the bushing 250 and the plunger 240. One end of the spring 260 is supported by the bushing 250, And is supported by a support end provided on the rod 220.

That is, the bushing 250 is fixed to the inner circumference of the plunger case 210, so that the elastic force of the spring 260 acts in the direction of the lower end, that is, the plunger 240, It is.

As the buoyancy member 400 is lifted by the buoyancy force, the plunger 240, which is lifted together with the buoyancy member 400, ascends and descends by overcoming the elastic force of the spring 260.

That is, the buoyancy is exerted to exert a force greater than the elastic force.

The magnet 410 and the plunger 240 fixed by the magnetic field also exert a force greater than the elastic force, so that the plunger 240 moves together as the buoyancy member 400 rises.

The operation of the valve according to the present invention will now be described.

First, a valve is installed so that the buoyancy member (400) is seated on the inner groove (2) formed in the bottom frame (1) of the water purifier.

At this time, the valve can be stably fixed to the bottom frame 1 by the fixing legs 212 provided outside the plunger case 210.

These valves are connected to a raw water supply pipe for supplying raw water to the water purifier.

A raw water supply pipe for supplying raw water is connected to an inlet 110 formed in the body 100 of the valve so that raw water is transferred through the discharge port 120.

At this time, leakage water is generated from the purified water tank, or leakage water generated from each part or each part is connected to the inner groove (2) of the bottom frame (1).

Here, the bottom frame 1 is formed so as to be inclined so that the leakage water flows easily in the direction of the inner groove 2.

Therefore, the buoyancy member 400 is lifted by the buoyancy force in accordance with the leakage water flowing into the inner groove 2.

When the buoyancy member 400 rises, the magnet 410 installed on the buoyancy member 400 is moved together with the plunger 240 of the opening and closing member 200 interlocked with the buoyancy member 400, So that they are moved together.

That is, as the plunger 240 moves upward together with the buoyancy member 400, the plunger rod 220 connected to the plunger 240 and the packing 230 provided at the distal end of the plunger rod 220 move together, (230) is in close contact with the inflow hole (321).

Accordingly, the flow path 130 formed between the inlet 110 and the outlet 120 is closed to block the supply of raw water, thereby preventing water from leaking.

As the buoyancy member 400 is lowered by removing the water flowing into the inner groove 2 for opening the closed channel 130, the packing 230 is separated from the inlet hole 321, To be opened.

At this time, the raw water flows through the circulation part 270 provided in the bushing 250 coupled to the long axis 221 of the plunger rod 220 so that the plunger rod 220 equipped with the packing 230 can be easily lowered It is.

Further, the plunger rod 220 is lowered easily due to the water pressure of the raw water flowing into the storage space 211.

Therefore, when the water is removed, the valve can be automatically switched from the closed state to the open state more effectively.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, There will be.

1: bottom frame 2: inner groove
100: Body
110: inlet
120: Outlet
130: Euro
200: opening / closing member
210: plunger case 211: storage space
212: Fixed bridge
220: plunger rod 221: long axis
230: Packing
240: plunger
250: Bushing
260: spring
270: circulation part
310: diaphragm plate
320: holder 321: inflow hole
400: buoyancy member 401: accommodating portion
402: Closing member
410: magnet

Claims (5)

A buoyancy member (400) that ascends and descends in accordance with the flow of water, and an opening and closing member (200) that moves together with buoyancy of the buoyancy member (400)
The opening and closing member 200 includes a plunger case 210 installed through the buoyancy member 400 and a plunger rod 210 housed in a storage space 211 provided inside the plunger case 210, A packing 230 provided at a distal end of the plunger rod 220 to selectively contact the inflow hole 321 and a plunger 240 at a rear end of the plunger rod 220, The bushing 250 is provided at the front end of the storage space 211 so that the plunger rod 220 does not move left and right but can be operated in the vertical direction, The inner circumferential edge of the bushing 250 or the outer circumferential surface of the bushing 250 may be in contact with the outer circumferential surface of the bushing 250 so that the outer circumferential surface is in close contact with the inner circumferential surface of the accommodating space 211, And a circulation part (270) is provided on the outer periphery. An open / close valve that automatically switches to an open state when the valve is removed. The method according to claim 1,
The outer peripheral edge of the plunger rod 220 is formed in a circular shape and the inner peripheral edge of the bushing 250 is formed into a triangular shape or a shape having a corner such as a hexagon, Wherein the valve is configured to minimize the contact area, thereby making it easier to move up and down, and to use the corner as a circulation part. The valve is automatically opened when the leakage is removed. The method according to claim 1,
Wherein a groove or a protrusion is formed in the longitudinal direction of the plunger case (210) so as to have a circulation part (270) in a longitudinal direction of the plunger case (210) Open valve that automatically switches to open when valve is removed. The method according to claim 1,
The plunger rod 220 is made of a metal material and is attached to the plunger 240 having magnetism so that the plunger rod 220 is lowered by its own weight. When the closed valve is removed automatically, . The method according to claim 1,
The plunger rod 220 is made of a synthetic resin material and one end of the spring 260 which surrounds the plunger rod 220 is supported by the bushing 250 and the other end is connected to a plunger rod Wherein the plunger rod (220) supported by the spring (260) at the end of the long axis (221) of the valve (220) is restored to its original position. Opening / closing valve which is converted into a state.

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