KR102055076B1 - Toilet flush valve preventing freezing-destroy - Google Patents

Abstract

The present invention relates to a toilet flush valve capable of freeze protection. The flush valve for a toilet includes a body cover screwed to the upper surface and a washing water pipe installed on one side. An internal piston valve is opened by a movement of a pushbutton assembly linked by an operation of a button installed on a valve body with a drain pipe formed in a downward direction. Water filled in a pressure chamber formed in an upper space of the valve body is discharged downwards by opening of the piston valve to lift a piston to an upper portion of the valve body and drain a prescribed amount of water on an inlet chamber side to the drain pipe. The flush valve further includes: an expansion stop plate made of a metal circular thin plate having a vertical elastic restoring force to be positioned above packing arranged in the pressure chamber arranged by the valve body and the body cover; and a spring arranged in an axial direction between the upper surface of the expansion stop plate and the inner wall of the body cover. Accordingly, a freeze protection means consisting of the expansion stop plate and the spring gradually stops an expansion pressure applied to the body cover caused by freezing and expanding of water in the pressure chamber of the toilet flush valve, and an air hole absorbs an expansion pressure pressurized upwards to prevent the body cover from being directly damaged by the freezing and expanding pressure of the water.

Description

Freeze-proof toilet flush valve {TOILET FLUSH VALVE PREVENTING FREEZING-DESTROY}

The present invention relates to a toilet flush valve, and more particularly, the water filled in the pressure chamber formed in the upper space of the valve body to prevent the body cover from freezing as it expands due to freezing due to the continuous cold weather in winter. And a toilet flush valve capable of freezing.

Conventional techniques in the flush valve of the toilet or urinal include a toilet water saving valve as shown in Figure 1 disclosed in the Republic of Korea Utility Model Publication No. 20-0221521, where the general structure of the toilet water saving valve Can be.

1 is a cross-sectional view of a water saving valve for a conventional toilet.

The conventional toilet water-saving valve is coupled to the operation part connecting portion 6 of the valve body 4 with the operation part 12 having the button 8 and the lever 10, and when the button 8 is pressed, the operation mechanism 32 ), The rod 30 is tilted to advance the push rod 28 by the inclination to tilt the piston valve 22 so that the washing water filled in the upper portion of the pressure chamber 18 is discharged, and thus the piston 24 is also opened. And the washing water of a predetermined large flow rate is discharged from the inflow pipe 14 to the discharge pipe 16, and when the lever 10 is pressed, the pressure bar 44 moves the rod 30 to advance the push rod 28. Therefore, as the piston valve 22 is inclined to open, the piston 24 is also opened so that the predetermined amount of washing water is discharged from the inlet pipe 14 to the discharge pipe 16.

However, the toilet water-saving valve of the configuration as described above is broken by the body cover screwed on the upper portion of the valve body by the expansion of the volume of the washing water filled in the pressure chamber (pressure chamber) freezes by the continuous cold wave in winter In addition, there is a problem that the toilet can not be used eventually due to defects such as leaking water, and leaked water flows into the toilet in which the valve body or the toilet is installed, and thus the toilet cannot be used. In particular, since the parts of the damaged body cover are not provided, there is an economic burden of replacing the toilet flush valve as a whole.

On the other hand, Figure 2 is a cross-sectional view showing a freeze protection device of a conventional toilet water supply valve.

2 is a view illustrating a structure of a freeze protection device of a conventional toilet water supply valve disclosed in Korean Registered Utility Model Publication No. 20-0267754 (Date: 2002.03.13).

Here, a ball valve having a through hole is provided on the valve disc or side wall which blocks the inlet and the outlet of the inner wall of the valve so that the water at the inlet side continuously flows through the outlet of the ball valve to the outlet side.

By the way, the above-described freeze protection device of the toilet water supply valve can prevent the freezing of the valve to some extent by preventing the water in the valve body from freezing by continuously flowing a small amount of water to the inlet side. However, the continuous flow of water has a problem in that excessive water can be wasted if the cold wave continues.

Therefore, the present invention has been made to solve the conventional problems as described above, the object of the present invention, to prevent the expansion pressure applied to the body cover due to the expansion of the water inside the pressure chamber of the existing flush valve for toilet flushing. It is possible to prevent the body cover from being damaged by the freezing expansion pressure of the water by installing an expansion expansion plate inside the pressure chamber and interposing the spring on the upper surface of the pressure chamber to elastically support the expansion blocking plate and to restore it to its original position. The object of the present invention is to provide a freeze-proof toilet flush valve.

The object is according to the present invention, the body cover is screwed on the upper surface and the wash water pipe is installed on one side and the push button assembly interlocked by the operation of the button installed on the valve body formed in the drain pipe in the lower direction of the inner piston The valve is opened, and the water filled in the pressure chamber formed in the upper space of the valve body is discharged downward by opening the piston valve so that the water on the inlet chamber side is drained to the drain pipe by the piston ascending to the upper portion of the valve body. A flush valve for a toilet comprising: an expansion blocking plate formed of a circular thin plate as a metal having an up and down elastic restoring force and positioned on a packing interposed in a pressure chamber provided by the valve body and the body cover; It is achieved by the freeze-proof toilet seat flush valve characterized in that it further comprises a spring provided in the axial direction between the expansion blocking plate upper surface and the body cover inner wall.

The expansion blocking plate preferably further comprises a stepped groove formed in at least one concave toward the center at regular intervals from the outer peripheral wall in the circumferential direction.

As described above, the freeze protection means consisting of the expansion blocking plate and the spring according to the present invention is to gradually inhibit the expansion pressure applied to the body cover due to the water inside the pressure chamber of the toilet flush valve to freeze and expand. In addition, it is possible to prevent the body cover from being directly damaged by the freezing expansion pressure of the water by allowing the air hole to absorb the expansion pressure pushed upward.

1 is a cross-sectional view showing the internal structure of a conventional common toilet water-saving valve,
Figure 2 is a cross-sectional view showing a freeze protection device of a conventional toilet water supply valve,
Figure 3 is a cross-sectional view of the flush valve for the toilet to which the freeze protection means is applied according to the present invention,
Figure 4 is a cross-sectional view showing an operating state of the freeze protection means according to the present invention,
5 is a cross-sectional view showing another embodiment of the expansion blocking plate according to the present invention.

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

Figure 3 relates to a cross-sectional view of the flush valve for the toilet to which the freeze protection means according to the present invention is applied, in which the installation structure of the freeze protection means according to the present invention is shown in detail.

In the present invention, the valve body 100, the body cover 101 is screwed to the upper surface to maintain the mutual airtight by the inner packing 111, one side of the valve body is the washing water pipe 102 for introducing water It is provided, the drain pipe 103 is provided in the lower direction of the valve body (100).

On the other hand, the push button assembly 105 which is interlocked by the operation of the button 104 is installed in the valve body 100 is configured to open the piston valve 106 installed in accordance with the movement. And the water filled in the pressure chamber 107 formed in the upper space of the valve body 100 by the opening of the piston valve 106 is provided to be discharged to the bottom, the piston 108 is raised to the upper portion of the valve body 100 While the water on the inlet chamber 109 side is configured to drain a certain amount to the drain pipe 103, where the toilet flush valve for sale and used on the market has almost the same or similar configuration, and the pressure chamber ( 107 is necessarily provided.

Meanwhile, the freeze protection means according to the present invention is responsible for the airtightness of the valve body 100 and the body cover 101 in the pressure chamber 107 provided between the valve body 100 and the screwed body cover 101. Is installed on the packing 111.

The expansion stop plate 120 constituting the freeze protection means is formed of a circular thin plate as a metal having an up and down elastic restoring force, and the spring 130 constituting the freeze prevention means is an upper surface of the expansion stop plate 120 and the body cover 101. It is interposed in the axial direction in the air hole 112 formed in the inner wall.

Figure 4 is a cross-sectional view showing an operating state of the freeze protection means according to the present invention.

Looking at the drawings when the expansion stop plate 120 forming the freeze protection means according to the present invention when the water accumulated in the pressure chamber 107 formed inside the valve body 100 is frozen by the cold winter cold to expand upwards, The expansion blocking plate 120 is curved outwardly in a concave shape while gradually inhibiting the expansion pressure moving upward, so that the pressure is collected toward the air hole 112, and consequently, the air collected in the air hole 112 is expanded. The body cover 101 is not damaged because the inflation pressure is not directly applied to the body cover 101 side by absorbing the expansion pressure applied to the 120.

In addition, the spring 130 is to gradually prevent the expansion stop plate 120 is curved upward upward as a result of reducing the pressure that the expansion pressure due to freezing directly applied to the body cover 101 as a result of the body cover ( 101) is to prevent breakage. Here, according to the present invention, the spring 130 also serves to return the expansion blocking plate 120 to its original position when the frozen state inside the pressure chamber 107 is thawed.

5 is a cross-sectional view showing another embodiment of the expansion blocking plate according to the present invention.

This figure can be seen in detail another embodiment of the expansion blocking plate according to the present invention, wherein the expansion blocking plate 120 is centered at regular intervals from the outer peripheral wall 121 in the circumferential direction of the expansion blocking plate The stepped grooves 122 and 122a recessed toward at least one side are formed.

In the present invention, unlike the flat plate shape of the expansion blocking plate 120 according to the present invention on the surface of the expansion blocking plate 120, the stepped grooves 122 and 122a are formed on the surface of the expansion stop plate 120. It serves to reduce the shape change projected upward by the pressure so that the inflation pressure applied upward by the freezing inside the pressure chamber 107 is concentrated toward the air hole 112, and consequently the air hole 112 The air collected in the air absorbs the inflation pressure applied to the inflation blocking plate 120, so that the inflation pressure plate 120a can gradually absorb the inflation pressure even without the spring 130, thereby expanding the inflation pressure due to freezing. ) To prevent damage to the body cover 101 as a result.

As described above, in the present invention, the freeze protection means consisting of the expansion blocking plate and the spring gradually stops the expansion pressure applied to the body cover due to freezing and expansion of the water inside the pressure chamber of the toilet flush valve and upward pressurization. By allowing the air hole to absorb the expansion pressure, it is possible to prevent the body cover from being directly damaged by the freezing expansion pressure of the water.

As used above, the terms or words used in the present specification and claims are not to be interpreted in the ordinary and dictionary sense, and the inventors properly define the concept of terms in order to explain their own invention in the best way. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can.

Therefore, the embodiments described in the present specification and the configuration shown in the drawings are only one preferred embodiment of the present invention, and do not represent all of the technical ideas of the present invention, and various equivalents may be substituted for them at the time of the present application. It should be understood that there may be water and variations.

100: valve body
101: body cover
102: washing water pipe
103: drain pipe
104: button
105: push button assembly
106: piston valve
107: pressure chamber
108: piston
109: inflow chamber
111: packing
112: air hole
120: expansion stop plate
121: outer wall
122, 122a: stepped groove

Claims (2)

Body cover 101 is screwed on the upper surface and the wash water pipe 102 is installed on one side and the push button assembly is interlocked by the operation of the button 104 installed on the valve body 100 formed with a drain pipe 103 in the lower direction As the piston 105 moves, the internal piston valve 106 is opened, and the water filled in the pressure chamber 107 formed in the upper space of the valve body 100 is discharged downward by the opening of the piston valve 106. In the toilet flush valve for which the piston 108 is raised to the upper portion of the valve body 100, the water on the inlet chamber 109 side is drained by a certain amount to the drain pipe 103,
An expansion blocking plate 120 formed of a circular thin plate as a metal having an upper and lower elastic restoring force and positioned on a packing 111 interposed in a pressure chamber 107 provided by the valve body 100 and the body cover 101. and;
The freeze-proof toilet bowl flush valve, characterized in that it further comprises a spring (130) provided in the axial direction between the upper surface of the expansion blocking plate 120 and the body cover (101). The method of claim 1,
The expansion stop plate 120 is freeze-proof possible further comprises a stepped groove (122, 122a) formed in at least one concave toward the center at regular intervals from the outer peripheral wall 121 in the circumferential direction Toilet flush valve.

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