KR100565715B1 - Valve structure for water supply - Google Patents

Abstract

The present invention relates to a water supply valve, and more particularly, to a water supply valve that opens and closes a flow path in response to a water pressure fluctuation of water, and in particular, breakage of components constituting the water supply flow path by water pressure exceeding an appropriate water pressure. To prevent.

The present invention provides a valve body having a flow path which is an inflow side and an outflow side of water moving at a hydraulic pressure, a regulator placed on the flow path to open and close the flow path according to a position, and an operation handle coupled to the regulator to move the regulator. An accommodating valve, comprising: an outlet side for opening and closing a flow path according to a hydraulic pressure in response to a hydraulic pressure fluctuation, and a hydraulic pressure fluctuation response part in which the outlet side responds to the hydraulic pressure fluctuation, wherein the response part moves in response to a pressure exceeding a predetermined hydraulic pressure region. An actuator, a guide passage for restricting the outflow side passage depending on the movement amount of the actuator, and an elasticity for assigning the position of the actuator to the guide passage and elastically adjusting the movement of the actuator according to the hydraulic pressure fluctuation therefrom. Member.

As a result, it prevents water flow path damage or leakage at high water pressure and helps water supply control.

Description

Valve structure for water supply

The present invention relates to a water supply valve, and more particularly, to a water supply valve that opens and closes a flow path in response to a water pressure fluctuation of water, and in particular, breakage of components constituting the water supply flow path by water pressure exceeding an appropriate water pressure. To prevent.

1 is connected to the water supply valve (2) to the water pipe (1) to introduce the water through this, where the tap water flows into the water pressure in the control valve (3) and the water flow state in it It is shown.

The dishwasher cleans the dishes by spraying the water with the spray arm (4). The dirt mixed with the water is filtered through a filter and supplied to the spray arm (4) by the feed water pump (5), and the contaminated water is drained. It is to be discharged to the outside through the pump (6), when the cleaning is started, the control valve (3) is opened and the water supplied from the water pipe (1) flows into the washing tank (7), the water is space (8) I'm getting back to.

The operation related to the water supply control is, for example, when a certain amount of water is supplied to fill the pressure chamber 9, the air in the pressure chamber 9 is compressed so that the water level detection pressure switch 10 detects the frequency change and The control is to close the control valve (3) to stop the water supply to proceed with the cleaning.

In general, the washing is performed in the order of pre-washing, main washing, rinsing 1.2, heating rinsing, and drying, and a predetermined amount of water is supplied to each step to perform washing or rinsing, and then the draining operation is repeated.

In particular, in the main washing and heating rinsing, the heater 11 is operated to raise the temperature of the water in order to achieve the effect of washing and sterilizing the soil. When water is supplied by the operation valve 3 during operation, the pressure switch 10 ) 'S frequency reaches the abnormal water level, detects the abnormal water level, sounds an alarm and stops the dishwasher.

Thus, in the dishwasher which has a sequence of pre-washing, main washing, rinsing, heating, drying, etc., the water supply state of each process is controlled through the control valve (3) and processed according to the scheduled course. It became an important part. Likewise, all devices that control the water supply, such as a washing machine, to treat the target object according to the predetermined course do not deviate from this, and the specifications of the primary water supply valve vary depending on the installation conditions.

2 shows a conventional water supply valve structure, and a main part of the valve body constituting a flow path from the water pipe 1 to the water supply hose 14 side of the dishwasher with the inlet side 12 and the outlet side 13 side by side ( 15 and a regulator 17 provided on a hose plug 16 connected to an outlet side 13 of the valve body 15 and an outlet side 12 and 13 of the valve body 15 to open and close the passage. And a shaft washer 18, 18a, which is coupled between the two directions of the regulator 17 to guide the rolling motion of the regulator 17, and is coupled to the regulator 17 to move the regulator 17, the shaft 19 It consists of a handle (20) for turning (19) from the outside, the regulator 17 has a groove (21) to which the shaft 19 is coupled as shown in Figure 3, depending on the position of the outlet body of the valve body 15 There is a through hole 22 which is in communication with or masks (12) (13).

The operation of the water supply valve is to open or close the flow path by adjusting the position of the regulator 17 in the flow path of the valve body 15 by turning the handle 20. 4A is a state in which the hole 22 of the regulator 17 is not in parallel with the flow path of the inflow and outflow side 12, 13, but in a direction crossing and crossing, and this state becomes a blocked state. (B) rotates the handle 20 and the force is transmitted to the shaft 19 to rotate the regulator 17 together so that the hole 22 in the regulator 17 is parallel with the inflow side 12 and 13. In this case, the valve is in the open position.

In this case, the opening and closing angle of the valve is operated while showing approximately 90 °, and has an optional function of flowing or blocking water according to the current position of the regulator 17 in the valve body 15.

These handle-operated valves are used to direct the water supply to the machine. This handle operated valve is used to divert the water flowing along the water pipe and direct it to a designated place. It is installed directly on the water pipe to supply or block water.

The role of the water supply valve is to block or open the flow path irrespective of the water pressure fluctuation.If there is a control valve on the equipment side, the water supply valve is always open and only the electronic control valve is controlled to control the water. It is to select whether to supply water or the amount of season, and it is a water supply passage that directs the flow of water.

However, the water pressure provided by the water supply is not constant, and the water pressure varies depending on the region, and may be different from the proper water pressure required by the equipment.

For example, in the case of household dishwashers, the proper water pressure is required to be within 1 ~ 8㎏ / ㎡, which can be considered to be designed in consideration of the water supply pressure.

There is no abnormality of fluid pressure in the operation and atmosphere of equipment under low pressure conditions that do not exceed the proper pressure, but there is a possibility of power generation beyond the equipment in a high pressure environment exceeding 8 kg / cm 2.

In other words, the water pressure supplied to the home may vary within 1 ~ 8㎏ / cm2 and more than 1 ~ 8㎏ / cm2 depending on the region, but the valve structure on the device side controls the flow path by magnetic force. It is difficult to adapt to high water pressure among various water pressures.

In the dishwasher, the water supply valve (2) is always open and the control valve (3) is intermitted regardless of the water pressure in the installation stage. In this case, the original water pressure is directly applied to the control valve (3) corresponding to the valve on the appliance side. It acts as a pressure and adversely affects the whole device. This phenomenon is also large at high pressures.

One way to reduce the fluid pressure burden on the equipment side is to first close the water supply valve 2 and then shut off the pressure in the path, but the water supply valve 2 must be opened each time the device is operated. It is difficult to recommend such a method for water supply of household appliances due to lack of operability and convenience.

Another method is to perform the primary side control and the secondary side control by including the water supply valve 2 as a controllable valve and including it as a control right in accordance with the operation of the apparatus. However, replacing the primary valve with an electric control valve only increases the possibility of system operation error and is practically difficult.

In this way, the valve structure provided as a simple water supply for irrespective of the water pressure fluctuation is applied to household appliances such as a dishwasher, so that the water supply valve is always open and the control valve is intermittent due to the convenience, so that when the high water pressure passes through the water supply valve, There is a possibility that the hose may be damaged or the control valve and various parts of the equipment constituting the water supply passage may be damaged.

In addition, the hydraulic pressure supplied to the equipment side in excess of the proper hydraulic pressure promotes leakage of the connection part of the components forming the flow path, thereby lowering the reliability of the product.If the leakage increases, the entire component parts of the flow path including the control valve must be replaced. This shortening is in a passive state against hydraulic pressure fluctuations.

An object of the present invention is to configure a valve for opening and closing a flow path in response to a water pressure fluctuation of water to eliminate component damage on the flow path due to a fluid pressure exceeding an appropriate water pressure.

It is another object of the present invention to maintain a primary mechanical valve characteristic connected to a fluid passage supplied with high water pressure, and to maintain the primary mechanical valve characteristics on a dishwasher feed channel without controlling the primary valve in a dishwasher having a water supply control line through a secondary electrical valve. It is to prevent leakage.

It is another object of the present invention to provide a water supply valve that blocks a waterway in response to high water pressure without changing the water supply valve structure.

To this end, the present invention is a valve body having a flow path to the inlet and outlet side of the water moving by the hydraulic pressure, the regulator is placed in the flow path to open and close the flow path according to the position, and the operation handle coupled to the regulator to move the regulator A water supply valve comprising: an outlet side for opening and closing a flow path according to a hydraulic pressure in response to a hydraulic pressure fluctuation; and a hydraulic pressure fluctuation response part in which the outlet side responds to the hydraulic pressure fluctuation, and the response part reacts under a pressure exceeding a predetermined hydraulic pressure range. And a guide flow path that makes the outflow side constrained depending on the moving amount of the actuator and the moving amount, and the position of the actuating rod is assigned to the guide flow path, from which the movement of the actuator is flexibly adjusted according to the hydraulic pressure fluctuation. The water supply valve is provided with an elastic member.

The water supply valve of the present invention includes a valve body having a flow path that is an inflow side and an outflow side of water moving at a hydraulic pressure, a regulator placed in the flow path to open and close the flow path according to a position, and coupled with the regulator to move the regulator. A water supply valve comprising a handle;

Water supply valve,

(1) an outflow side path for opening and closing the flow path in response to the hydraulic pressure fluctuation;

(2) the outlet side is composed of a hydraulic pressure response unit;

(3) the response unit includes an actuator moving in response to a pressure exceeding a predetermined hydraulic pressure region;

(4) a guide flow path for restricting the outflow side flow path according to the position of the actuator;

(5) It includes an elastic member for designating the position of the actuator in the guide passage and resiliently adjusting the movement of the actuator in response to the hydraulic pressure fluctuation.

Preferably, the hydraulic pressure response unit is separated from the valve body, characterized in that the separation possible by placing in a hose connection medium such as a hose plug.

Optionally, the actuator and the guiding passage are characterized in that the corresponding surfaces facing each other are configured in a planar contact relationship with the plate.

And the actuator is characterized in that it further comprises a rod on the opposite side and an extended flange portion to widen the contact area of the water in consideration of the hydraulic pressure response degree.

Optionally, the guiding flow passage comprises a housing for guiding the rod of the actuator, and the flow passage is opened through the housing.

Optionally, the elastic modulus of the elastic member is characterized in that the allowable water pressure and the limit water pressure is determined on the basis of the machine side, and larger than the allowable water pressure based on the inflection point is smaller than the limit water pressure.

The water supply valve acts as a primary valve by maintaining the water passage normally within the allowable water pressure range, and shuts off the flow path at the hydraulic pressure exceeding the allowable water pressure to be transferred to the secondary valve to prevent damage occurring in the subsequent flow path. To prevent it.

An embodiment of the present invention will be described with reference to the drawings.

1 shows an example of a water supply valve applied to the dishwasher as shown in FIG. 1, but products including the water supply valve as the primary valve and the secondary control valve are separately provided to form a water supply system.

The drawings related to the dishwasher body, its feed water system and the water supply valve refer to the drawings of FIGS. 1 and 2 and use the same reference numerals.

5 and 6 illustrate an embodiment of the present invention, in which the flow channel is open, the flow channel is closed, and FIG. 6 is a view showing another embodiment in a condition where the valve is open. Drawing.

An embodiment of the present invention has an inlet side 12 for introducing water that moves at a hydraulic pressure along the water pipe 1, and an outlet side 13 for discharging water passing through the inlet side 12, as shown in FIG. Sliding to guide the movement of the regulator 17 and the regulator 17 on the flow path between the valve body 15 and the inflow side 12 and the outflow side 13 according to the position of the hole 22. The handle operation type water supply valve which consists of washers 18 (18a), the shaft 19 which connects the outer handle 20 to the regulator 17, etc. is mentioned.

The outlet side 13 of the water supply valve in the above configuration is composed of a hydraulic pressure response unit.

The hydraulic pressure variable response part has an actuator 30 moving in response to a pressure exceeding a predetermined hydraulic pressure region on the outlet side 13 flow path, and guides the movement of the actuator 30 to open the outlet side flow path according to the position. Or a guide flow path 31 coupled to guide or close the actuator 30 to move the actuator 30 in a guide flow path 31 while moving the actuator 30 elastically according to the hydraulic pressure fluctuation. An elastic member 32 is provided, and the elastic member 32 is installed on the outlet side 13 in a form in which the actuator 30 is held in the guide passage 31.

In this way, the hydraulic pressure response part serving as the outflow side 13 is selected by mounting the outflow side of the valve body 15 in a built-in type, or by making and assembling a separate hose plug 16 as illustrated in the outflow side of the valve body 15. Screwing into (13) is also possible. In this case, the flow path in the hose plug 16 becomes the outflow side 13.

The actuator 30 has a head 33 in the form of a flange 33 with respect to the inflow side 12 of the water, and a rear side of the rod 34 has a protruding shape, and a packing 35 is mounted. .

The guide passage 31 causes the rod 34 of the actuator 30 to protrude in the form of a housing 36 into which the rod 34 is fitted so that the rod 34 can move in the housing 36 and the inner diameter of the housing 36. Silver was larger than the diameter of the rod 34 so that the space became a flow path.

The elastic member 32 is in close contact with each wall along the outer side of the housing 36 to the actuator 30 so that the actuator 30 can be pushed toward the inflow side 12 in an elongated state so that the elastic force It is installed using a compression spring to act on the movable actuator 30, and the elastic modulus refers to the pressure resistance of the parts forming the flow path, and considering the water pressure supplied from the water pipe, the hydraulic pressure is higher than that of the flow path. If large, the shrinkage is set. The range allows the elastic member 32 to shrink under high pressure conditions in excess of approximately 8 kg / cm 2.

As another embodiment, as shown in FIG. 7, the packing 35 is inserted into the actuator 30 to form a contact surface 37, and the opposite side guide passage 31 is in close contact with the contact surface 37 of the actuator 30. The corresponding contact surface 38 is configured to allow the corresponding contact surfaces 37 and 38 to be in close contact with each other when the elastic member 32 is contracted to block the flow path.

The water supply valve of the present invention configured as described above opens or closes the flow path according to the water pressure fluctuation of the water. Looking at the specific operation in Figures 5 and 6 as follows.

Under the open condition by turning the handle 20, the hole 22 of the regulator 17 is in a position where the hole 22 of the regulator 17 communicates with the flow path of the outflow side 12, 13.

Water pressure P1 is proper water pressure (allowable water pressure / low water pressure),

Hydraulic pressure P2 is high water pressure (limit water pressure),

When water pressure P2 ≥ elastic modulus of elastic member,

Water entering the inflow side 12 at the hydraulic pressure P1 passes through the regulator 17 and exits into the guide passage 31 via the actuator 30 and passes through the outlet side 13 to the appliance side control valve 3. It is watered (Fig. 5).

However, the water coming in through the inflow side 12 into the water pressure P2 pressurizes the actuator 30 through the regulator 17, and this pressure acts as a pressure exceeding the elastic modulus of the elastic member 32 to provide an elastic member ( 32) to shrink. Then, the actuator 30 is in close contact with the wall of the housing 30 forming the guide passage 31 through the packing 35 to block the inlet of the guide passage 31, so that the guide passage 31 is the only flow path of water. ), The flow path is blocked so that the water does not pass through the outlet side 13 and is in an isolated state in the valve (FIG. 6).

In this state, when the water pressure of the water is changed to P1, the pressure returns to the state as shown in FIG. 5 in which the guide passage 31 is opened by pushing the actuator 30 with the restoring force of the elastic member 32.

The actuator 30 here maintains a constant responsiveness to hydraulic pressure through the flange 33 in the hydraulic actuation direction, the rod 34 together with the housing 36 of the guide flow path 31 the entire actuator ( 30) keep the movement stable.

Therefore, when water is supplied from the water pipe to the destination via the water supply valve, even though the water supply valve is always open, the valve opens and closes itself depending on the degree of water pressure. This means that in the hydraulic pressure zone beyond the elastic force of the elastic member 32, the water supply through the water supply valve cannot be made without changing the elastic force, and in such a hydraulic condition, the operating radius of the handle 20 of the water supply valve is changed. By reducing the amount of water passing through the regulator 17 by reducing the water pressure can be used to prevent the flow path is blocked. This control method is a case of the control method not related to the present invention, the important action is to install the device without any prior consideration of the water pressure to damage the flow path of the device or the fluid moving pressure is large, damage the parts weakened durability leak It is to provide information about the allowable water pressure, such as leading to.

This action leads to greater installation effects in machines such as dishwashers that set a constant driving course and control the water supply according to the course. For example, the dishwasher has a water supply valve (2) and a control valve (3) for introducing water, a water supply hose (14) and a flow path leading to the main body, respectively, and the water supply valve (2) is always open and a control valve. (3) to control the water supply, when high water pressure is continuously applied to the control valve (3) side, the pressure is first supplied to the water supply hose (14) connecting the water supply valve (2) and the control valve (3) The water supply hose is concentrated and leaks, and the control valve 3 intermittently opens and closes, causing a load error, leading to an operation error, or the high water pressure acting on the equipment side as it may damage the internal electrical components. By blocking it conveys information about the need for water pressure regulation.

Therefore, in the high water pressure condition, the water supply to the device side is stopped to eliminate damage to the flow path and the device side caused by the high water pressure, and based on this, the water is discharged through the regulator or the water pressure of the water pipe is adjusted to limit the water to the device. I can supply it.

According to this application example, it is possible to obtain a result in which only the water supply valve can be adjusted close to the appropriate water pressure on the basis of the allowable water pressure on the device side without changing the allowable water pressure of the device with respect to the pressure fluctuation ranges depending on the region.

The present invention by selectively controlling the water flow path according to the water pressure degree in response to the various hydraulic pressure fluctuation width of the water supplied from the water pipe to block the inflow of high pressure to the path afterwards to prevent leakage or damage on the flow path due to the high pressure action There is.

In addition, the present invention in the dishwasher having the water supply control line through the secondary electrical valve while maintaining the primary mechanical valve characteristics connected to the fluid passage supplied at high water pressure without parts control on the dishwasher water supply passage without the primary valve control It is effective as a safety device to reduce the damage of advanced forms such as flooding of the kitchen by leaking water.

In addition, the present invention is compatible by partially coupling only the outlet side portion connecting the flow path without changing the normal water supply valve structure, and has the effect as a control valve to block the waterway in response to the high water pressure without a separate adjustment step.

In addition, the present invention foresee stop water supply by selectively blocking the flow path when the high pressure in the valve opening conditions, but in parallel with the conventional valve control method for controlling the flow rate through the adjustment of the amount of water passing through the regulator through the inlet side There is an effect that can be applied to the hydraulic pressure bar.

1 is a schematic diagram of the water supply system of the dishwasher.

Figure 2 is a cross-sectional view of a conventional water supply valve.

3 is a detailed view of a regulator of the components of FIG.

4 is a view illustrating a flow path change state of a valve according to a handle manipulation in FIG. 2,

(A) is blocked,

(B) is a side view showing the open state.

5 and 6 are a cross-sectional view of the valve according to an embodiment of the present invention, Figure 5 is an open state, Figure 6 is a valve operation showing the blocked state.

7 is a cross-sectional view of a valve of another embodiment of the present invention.

Explanation of symbols for the main parts of the drawings

1: water pipe 2: water supply valve

3: control valve 9: pressure chamber

10 pressure switch 12 inflow side

13 outlet side 14 water supply hose

15: valve body 16: hose plug

17 regulator 18, 18a sliding washer

19: shaft 20: handle

21: groove 22: hole

30: actuator 31: guide flow path

32: elastic member 33: flange

34: Rod 35: Packing

36: housing 37, 38: contact surface

Claims (5)

In a water supply valve comprising a valve body having a flow path to the inlet and outlet side of the water moving by the hydraulic pressure, a regulator placed in the flow path to open and close the flow path according to the position, and a handle coupled to the regulator to move the regulator , An outlet side for opening and closing the flow path in response to the hydraulic pressure change, The outlet side is composed of a hydraulic pressure response unit in response to the hydraulic pressure change, The response part has an extended flange part for widening the contact area of water in consideration of the hydraulic pressure fluctuation degree, and a protruding rod is provided on the opposite side of the flange part, so as to move and react under pressure exceeding a predetermined hydraulic pressure range. Chewwa, A guide flow path for opening and closing the outflow side flow path according to the position of the actuator; A water supply valve structure comprising an elastic member for determining the position of the actuator in the guide passage and changing the position of the actuator in response to the hydraulic pressure fluctuation. The method of claim 1, Water supply valve structure characterized in that the hydraulic pressure response unit is separated from the valve body in a flow connection medium consisting of a hose plug to be detachably coupled. The method of claim 1, The actuator and the guide passage constitute a contact surface facing each other with a contact surface formed of a plate-like surface contact correspondence. The method of claim 1, The guide flow passage is composed of a housing for guiding the rod of the actuator, the flow passage valve structure characterized in that the flow path is opened through the housing. The method of claim 1, The elastic coefficient of the elastic member is the water supply valve structure characterized in that the allowable water pressure and the limited water pressure is determined and based on the inflection point is larger than the allowable water pressure and smaller than the limited water pressure.