WO2018194377A1

WO2018194377A1 - Opening/closing valve configured such that closed valve automatically switches to open state when leaked water is removed

Info

Publication number: WO2018194377A1
Application number: PCT/KR2018/004519
Authority: WO
Inventors: 강찬석; 여순록; 김동석; 백남국; 서상현; 김재영
Original assignee: (주)엠씨엠
Priority date: 2017-04-20
Filing date: 2018-04-18
Publication date: 2018-10-25

Abstract

The present invention relates to an opening/closing valve and, more particularly, to an opening/closing valve wherein, provided that the channel of the valve is blocked due to water leakage, the closed valve does not operate erroneously when the leaked water is removed. To this end, the present invention provides a valve comprising: a buoyancy member that moves upward/downward as the water level rises; and an opening/closing member that moves together as the buoyancy member moves by means of buoyancy. The opening/closing member comprises: a plunger case installed to penetrate the buoyancy member; a plunger rod contained in a containing space provided inside the plunger case and configured to move in the longitudinal direction; a packing installed on the front end portion of the plunger rod and selectively forced against an inflow hole; a plunger provided on the rear end of the plunger rod; and a bushing provided at the front end of the containing space such that the plunger rod can operate in the upward/downward vertical direction without freely moving leftward/rightward. The inner peripheral edge of the bushing is forced against the outer peripheral edge of the plunger rod, and the outer peripheral edge of the bushing is forced against the inner peripheral edge of the containing space. A circulation portion is provided on the inner peripheral edge or the outer peripheral edge of the bushing such that raw water can circulate in the containing space in which the plunger is contained, thereby guaranteeing that, by circulating the raw water to the containing space, no vacuum pressure occurs. In addition, a circulation portion is provided on the inner peripheral edge of the containing space to be deeper in the longitudinal direction than the position of the bushing provided in the containing space of the plunger case. In addition, the outer peripheral edge of the plunger rod has a section configured in a circular shape, and the inner peripheral edge of the bushing is configured in a shape having corners, such as a triangle, quadrangle, a hexagon, an octagon, or the like, which makes a tight contact with the outer diameter of the circular shape. Accordingly, not only is the area of tight contact minimized, thereby facilitating upward/downward movements, but a circulation portion is also provided. In addition, the plunger rod is made of a metal material made of a material having a specific gravity larger than that of water and is attached to the plunger having magneticity such that the plunger rod descends due to its own weight. In addition, when the plunger rod is made of a synthetic resin material, a spring is provided between the bushing and the plunger so as to surround the plunger rod such that the lifted plunger rod is lowered.

Description

On-off valve that automatically switches to open when the closed valve removes leaks

The present invention relates to an on-off valve, and more particularly, to an on-off valve so that a malfunction of the closed valve is not generated when the leaked water is removed while the flow path of the valve is blocked due to leakage.

In general, the valve is installed in a pipe for transporting a gas or a fluid of high pressure, and is selectively used to open and close the valve to be used for the purpose of controlling the transport of the fluid.

These valves have a variety of structures depending on the intended use.

For example, the valve used for a water purifier normally uses a solenoid valve.

The solenoid valve automatically opens and closes the flow of the fluid repeatedly due to the nature of the water purifier to be flowed and shut off repeatedly.

Such a solenoid valve has a leak detection sensor installed to detect a leak occurring in the water purifier, and when a leak is detected by the leak detection sensor, a user is notified of a leak state by a notification or the like and is linked with a solenoid valve. To cut off the supply.

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

However, since the solenoid valve normally supplies power, the leakage circuit breaker operates to shut off the building power when the leak comes in contact with the power supply, which is another product that is normally powered, such as a refrigerator or a filter in a fish tank. There is a problem that another loss occurs because the power supply is cut off to the product that must be maintained.

Therefore, recently, as disclosed in Patent Registration No. 10-1239324 as a valve to shut off the supply of raw water by buoyancy rising and falling as the water leaks without using a power source.

The valve structure is opened and closed by using the buoyancy, buoyancy member to move up and down according to the difference of water, and the opening and closing member to move together as it moves by the buoyancy of the buoyancy member, the opening and closing member is installed through the buoyancy member A plunger case, a plunger rod which is accommodated in a storage space provided inside the plunger case and moves in a longitudinal direction, and is provided at a distal end of the plunger rod to a packing selectively contacting an inlet hole and to a rear end of the plunger rod A plunger is provided, and a stopper is installed at an upper end of the storage space, and a spring surrounding the plunger rod is positioned between the stopper and the plunger to move the plunger together with the buoyancy member and to return the elevated plunger rod. Pruned by the elastic force of the spring provided in the storage space And one will ever with the plunger rod is lowered.

However, the spring's elastic force is set to be weaker than the magnetic force of the magnet provided in the buoyancy member so that the plunger moves up and down together as the buoyancy member moves up and down. In order to open the on-off valve because the pressure cannot be overcome, there is a problem in that the valve has to be dismantled to artificially lower the plunger rod provided with the packing.

Therefore, the present invention is to solve the above problems, by removing the water leakage in the water purifier by preventing the vacuum pressure is generated in the storage space of the plunger case more effectively in the open state in the valve automatically closed state To be converted.

To this end, the present invention is a valve consisting of a buoyancy member to move up and down as the water rises, and the opening and closing member to move together as the buoyancy of the buoyancy member moves,

The opening and closing member is provided with a plunger case which penetrates through the buoyancy member, a plunger rod which is accommodated in a storage space provided inside the plunger case and moves in a longitudinal direction, and is installed at the distal end of the plunger rod to selectively enter the inlet hole. A packing in close contact with the plunger is provided at the rear end of the plunger rod, and a bushing is provided at the front end of the storage space so that the plunger rod can be operated vertically without moving from side to side, wherein the inner circumference of the bushing is The outer space is in close contact with the outer circumference of the plunger rod, and the outer circumference is in close contact with the inner circumference of the storage space, and the storage space is provided with a circulation portion at the inner or outer circumference of the bushing so that the raw water can be circulated in the storage space in which the plunger is accommodated. The raw water is circulated so that no vacuum pressure is generated.

In addition, the circulation portion is provided to the inner periphery of the storage space deeper in the longitudinal direction than the position of the provided bushing of the storage space of the plunger case.

In addition, the cross section of the outer circumference of the plunger rod is made of a circular shape, and the inner circumference of the bushing is made of a shape having corners such as triangle, square, hexagon, or octagon such that the circle is in close contact with the outer diameter, thereby minimizing the close contact area. In order to facilitate this and to provide a circulation portion.

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

In addition, when the plunger rod is made of a synthetic resin material is provided with a spring surrounding the plunger rod between the bushing and the plunger to lower the raised plunger rod.

Therefore, the present invention is to prevent the vacuum pressure is generated in the storage space provided with the plunger by circulating the raw water through the circulation portion provided between the bushing and the plunger case or the bushing and the plunger rod when removing the leak of the valve blocked by the leak It is to prevent malfunction of the valve.

1 is a cutaway view of a conventional valve.

Figure 2 is a perspective view showing the overall appearance according to an embodiment of the present invention.

Figure 3 is a bottom perspective view showing the overall appearance according to an embodiment of the present invention.

4 is a cross-sectional view of the valve of the present invention.

5 is a cross-sectional perspective view of the valve of the present invention.

Figure 6 is an exploded view of the valve of the present invention.

Figure 7 is a cross-sectional view of the use state that the leakage flows into the inlet groove provided in the bottom frame.

8 is a cross-sectional view showing a state in which the on-off valve is lifted and closed using the buoyancy to block the flow path.

FIG. 9 is a cross-sectional view illustrating a state in which the shutoff valve blocked in FIG. 8 is lowered and opened. FIG.

10 is a cross-sectional perspective view showing a state in which a circulation part is provided at an inner circumference of a storage space provided in a plunger case;

In the best form for the practice of the present invention in the valve consisting of a buoyancy member 400 to move up and down with the rise of the water, and the opening and closing member 200 to move together as the buoyancy of the buoyancy member 400 moves together,

The opening / closing member 200 is accommodated in the plunger case 210 installed through the buoyancy member 400 and the storage space 211 provided inside the plunger case 210 to move in the longitudinal direction. 220, a packing 230 installed at the front end of the plunger rod 220 to be in close contact with the inlet hole 321, and a plunger 240 at the rear end of the plunger rod 220. A bushing 250 is provided at the front end of the storage space 211 so that the plunger rod 220 does not flow from side to side, and is operated in a vertical direction. The inner circumference of the bushing 250 is a plunger rod 220. The outer circumference of the outer circumference is in close contact with the inner circumference of the storage space 211, the inner circumference of the bushing 250 or so that the raw water can be circulated in the storage space 211 accommodated by the plunger 240 Closed, characterized in that the outer periphery provided with a circulation portion 270 It is an on-off valve that automatically switches to the open state when the valve removes leaks.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to a valve for automatically switching the valve shut off due to leakage when the leaked water is removed from the closed state to the open state.

In order to have the effect as described above, the configuration of the present invention, as shown in Figures 2 to 6 includes a body 100 is formed with an inlet 110 through which the raw water is introduced and an outlet 120 through which the raw water is discharged,

The opening and closing member 200 is installed in the body 100, and at this time, a flow path 130 through which raw water moves between the body 100 and the opening and closing member 200 is formed.

In this case, as shown in FIGS. 3 to 4, the holder 320 having the inlet hole 321 communicating with the flow path 130 between the body 100 and the opening / closing member 200 supports the diaphragm plate 310. And is installed on the body 100.

When the valve as described above 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 indentation groove 2 formed in the bottom frame 1.

The inner groove 2 is formed in a shape corresponding to the buoyancy member 400, the inner diameter of the inner groove 2 is the outer diameter of the buoyancy member 400 so that the buoyancy member 400 can easily rise It is preferable to make it wider.

At this time, the bottom frame 1 is made to be inclined toward the inlet groove 2 so that water leaked into the inlet groove 2 into which the buoyancy member 400 is inserted as shown in FIG. 7. desirable.

In addition, the buoyancy member 400 is installed so as to be inserted into the bottom frame (1) of the bottom of the water purifier to prevent the parts are damaged by minimizing contact with the components provided in the water purifier by the leaked water.

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

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

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

At this time, the magnet 410 is made of a ring shape through the center, the magnet 410 is provided in the buoyancy member 400 by the insert injection method when manufacturing the buoyancy member 400 or buoyancy member 400 After receiving the magnet 410 in the receiving portion 401 provided as the center of the end member 402 may 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 and closing member 200 as described later, the opening and closing member 200 is to be moved together with the buoyancy member 400.

And, the opening and closing member 400 is a plunger that is formed to move in the longitudinal direction accommodated in the interior of the plunger case 210 and the plunger case 210, the storage space 211 is formed therein as shown in FIG. A rod 220, a packing 230 installed at the front end of the plunger rod 220, and a plunger 240 installed at the rear end of the plunger rod 220 and a bushing 250 provided to surround the plunger rod 220. Is done.

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 described in the direction in which the buoyancy member 400 is installed.

In addition, the rear end of the plunger case 210 is installed to penetrate through the buoyancy member 400, and the front end is coupled to the body 100.

In addition, the diaphragm plate 310 having a holder is positioned at the joint portion between the front end portion 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, rubber.

Therefore, the diaphragm plate made of rubber material is positioned without a separate packing portion between the distal end portion of the plunger case 210 and the body 100 so that no leakage occurs through the joint portion.

In addition, the plunger 240, the bushing 250, the plunger rod 220, and the packing 230 are sequentially received in the storage space 211 of the plunger case 210.

As the plunger 240 moves, the plunger rod 220 with the packing 230 is also moved together.

In this case, as shown in FIG. 4, the bushing 250 is provided at an outer circumference of the long axis 221 of the plunger rod 220, so that the plunger rod 220 does not flow to the left and right sides, but in the vertical direction, that is, to the holder 320. It is used as a guide means for precisely moving the formed inlet hole 321 is located direction.

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

At this time, a groove frame or a protruding frame is formed on the outer circumference of the bushing 250 so that the raw water can be circulated to the storage space 211 as described above, and the circulation part 270 is interposed between the inner circumference of the storage space 211 and the bushing. It is to be equipped.

In addition, the inner circumference of the bushing 250 is formed in a shape having an edge, that is, a triangle, a square, a pentagon, and so on, thereby minimizing a close contact with the outer circumference of the plunger rod 220, thereby increasing the plunger rod 220. The descent is to facilitate operation.

In addition, by forming a groove frame or a protruding frame with the inner circumference of the bushing 250 to provide a circulation portion 270 as a part in close contact with the outer circumference of the plunger rod 220 and to minimize the contact surface. .

In addition, as shown in FIG. 10, a groove frame or a protruding frame is formed at an inner circumference of the storage space 211 deeper than the position of the bushing 250 provided as the storage space 211 of the plunger case 210 to form a circulation part ( 270 may be provided.

That is, the circulation unit 270 is to prevent the pressure difference between the inside and outside by allowing the raw water to be circulated to the lower end of the receiving space 211 of the plunger case 210.

In addition, if the bushing 250 or the plunger case 210 is formed as a groove frame to provide the circulation portion 270, the plunger rod is located in the center of the storage space when the protrusion frame is formed For this reason, it is preferable that it consists of at least 3 or more pieces.

In addition, according to the present invention, the plunger 240 has a property of a magnet.

In addition, the plunger 240 may be made of a rod-shaped magnet.

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

For example, the magnet 410 installed in the buoyancy member 400 is preferably located below the portion where the plunger 240 is located.

The magnetic field is generated between the magnet 410 and the plunger 240 installed in such a structure.

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

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

The predetermined position means a central position of a force on which the attraction force and the repulsive force act.

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

Therefore, the plunger 240 fixed by the magnet 410 of the buoyancy member 400 is to move the plunger 240 associated with it as the magnet 410 moves together when the buoyancy member 400 moves.

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

Therefore, the flow path 130 is closed by being in close contact with the inlet hole 321 located above the packing 230 to block the supply of raw water.

In addition, the buoyancy generated in the buoyancy member 400 may be removed to open the closed flow path 130.

In other words, if the leak flows into the inlet groove 2 provided in the bottom frame 1, the buoyancy member 400 is lowered so that the packing 230 falls from the inlet hole 321 and the flow path 130 is opened. .

In this case, a discharge port that is selectively opened and closed may be provided to easily drain the leak from the inlet groove 2 formed in the bottom frame (1).

In the present invention, the magnet 410 installed in the buoyancy member 400 is formed to have a ring shape and is installed to face the polarity different from the plunger 240 so as to move together by fixing the plunger 240. It is not limited.

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 is generated when the buoyancy member 400 moves. It can be moved upward by pulling together.

In addition, the magnet 410 provided in the buoyancy member 400 is made of a metal material and the plunger 240 may have the same effect as described above even when made of a magnet.

In addition, when the plunger rod 220 is made of a metal material which is higher than the specific gravity of water and generates a repulsive force with the plunger 240 made of a magnet, the plunger 240 and the plunger rod 220 are interlocked together without providing a separate connecting means. It can be.

In addition, since the plunger rod 220 and the plunger 240 are higher than the specific gravity of water, when the buoyancy member 400 descends, the plunger rod 220 and the plunger 240 may be automatically lowered by their own weight.

In addition, the plunger rod 220 is made of a material having a specific gravity lower than the specific gravity of water, and when the plunger 240 is lowered when the plunger 240 is not fixed, the plunger rod 220 is also lowered. A spring 260 surrounding 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 the other end is plunger. It is to be supported by the support end provided in 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, so that the plunger rod 220 is lowered. It is so long.

In addition, the plunger 240 rising together as the buoyancy member 400 is lifted by the buoyancy is made to elevate while winning the elastic force of the spring 260.

That is, the buoyancy force is made to exert a force larger than the elastic force.

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

Accordingly, the operation of the valve according to the present invention configured as described above will be described.

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

In this case, the valve may be stably fixed to the bottom frame 1 by the fixing leg 212 provided to the outside of the plunger case 210.

Such a valve is connected to a raw water supply pipe for supplying raw water to a water purifier.

At this time, looking at the flow of the fluid supplied to the water purifier, the raw water supply pipe for supplying raw water is connected to the inlet 110 formed in the body 100 of the valve is the raw water is transferred through the outlet 120.

At this time, the leak occurs from the water purification tank or leaks generated from each part or each part is connected to the inlet groove 2 of the bottom frame (1).

Here, the bottom frame 1 is formed to be inclined so that the leak easily flows in the indentation groove 2 direction.

Therefore, the buoyancy member 400 is raised by the buoyancy according to the leakage flow into the inlet groove (2).

In addition, when the buoyancy member 400 is raised, the magnet 410 installed in the buoyancy member 400 is moved together, the plunger 240 of the opening and closing member 200 interlocked with the buoyancy member 400 is a magnet 410 As they are fixed by the magnetic field, they move together.

That is, as the plunger 240 rises together with the buoyancy member 400, the plunger rod 220 connected to the plunger 240 and the packing 230 provided at the tip of the plunger rod 220 move together to pack the packing. 230 is in close contact with the inlet hole (321).

Accordingly, the flow path 130 formed between the inlet 110 and the outlet 120 is closed to prevent the water from leaking by blocking the supply of raw water.

In addition, the packing 230 is separated from the inlet hole 321 by removing the water flowing into the inlet groove 2 so as to open the closed passage 130 so that the packing 230 is separated from the inlet hole 321. The opening of the

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

In addition, the plunger rod 220 is to be lowered more easily due to the water pressure of the raw water flowing into the receiving space 211.

Thus, when the leaked water is removed, the valve can be automatically converted from the closed state to the open state more effectively.

The present invention has been described with reference to preferred embodiments of the present invention, but the present invention is not limited to these examples, and various embodiments may be embodied in various forms or modifications within the scope without departing from the technical spirit of the present invention. There will be.

Claims

In the valve consisting of a buoyancy member 400 to move up and down as the water rises, and the opening and closing member 200 to move together as the buoyancy force of the buoyancy member 400 moves,

The opening / closing member 200 is accommodated in the plunger case 210 installed through the buoyancy member 400 and the storage space 211 provided inside the plunger case 210 to move in the longitudinal direction. 220, a packing 230 installed at the front end of the plunger rod 220 to be in close contact with the inlet hole 321, and a plunger 240 at the rear end of the plunger rod 220. A bushing 250 is provided at the front end of the storage space 211 so that the plunger rod 220 does not flow from side to side, and is operated in a vertical direction. The inner circumference of the bushing 250 is a plunger rod 220. The outer circumference of the outer circumference is in close contact with the inner circumference of the storage space 211, the inner circumference of the bushing 250 or so that the raw water can be circulated in the storage space 211 accommodated by the plunger 240 Closed, characterized in that the outer periphery provided with a circulation portion 270 An on / off valve that automatically switches to the open position when the valve removes leaks.
The method of claim 1,

The outer circumferential cross section of the plunger rod 220 is formed in a circular shape, and the inner circumferential edge of the bushing 250 has a shape having a corner such as a triangle or a square, a hexagon, an octagon, etc., the side of which the circle is in close contact with the outer diameter. Opening and closing valves are automatically converted to the open state when the closed valve is characterized in that it is made to minimize the close area to facilitate the lifting and lowering and to utilize the corner as a circulation portion.
The method of claim 1,

The inner periphery of the storage space 211 of the plunger case 210 is formed in the groove frame or protruding frame deeper in the longitudinal direction than the position provided with the bushing 250 to provide a circulating part 270 On / off valve that automatically switches to open when the leaked valve removes leaks.
The method of claim 1,

The plunger rod 220 is made of a metal material and is attached to the plunger 240 having magnetic properties so that the plunger rod 220 is lowered by its own weight so that the closed valve is automatically opened when the leak is removed. On-off valve that is converted to.
The method of claim 1,

The plunger rod 220 is made of a synthetic resin material, one end of the spring 260 provided to surround the plunger rod 220 is supported by the bushing 250, the other end is provided with a plunger 240 ( The closed valve, which is supported at the end of the long shaft 221 of the 220 and is lifted by the spring 260, can be restored to its original position. Opening / closing valve to state.