KR0126228B1 - Devices preventing bursting of pipes by freezing - Google Patents

Abstract

A floating tap where enables to prevent from destroying by the ice without keeping warm of the valve and the pipe, and consists of a housing, valve stem, a press plate of the cam type, a inflow intercepting means, a drain means, and a leakage water preventing means.

Description

Immobility

1 is a cross-sectional view of one embodiment of the anti-freeze of the present invention.

2 is a partial cross-sectional view of the anti-freeze of the present invention showing another embodiment of the plunger.

3 is a cross-sectional view of the upper portion of the non-floating housing in which the upper end of the non-floating housing and the elastic member of the present invention are replaced with the upper end of the housing provided with a rotary handle and a screw thread.

FIG. 4 (a) is a cross-sectional view showing a state in which water remaining inside the floating field of the present invention shown in FIG. 1 is withdrawn.

4 (b) is a cross-sectional view showing a state in which water flows in the antifreeze of the present invention shown in FIG.

* Description of the symbols for the main parts of the drawings *

1 housing 2 inlet

3: drain hole 4: plunger

5: lower rod 6: middle rod

7: upper rod 8: pressing plate

9 length adjustment coupling 10 valve seat

11: swivel joint 12: elastic member

13: Inlet hole 14: Drain hole

15: Gasket 16: Valve Body

17: Vezuelbo 18: O-ring

The present invention relates to antistatic. More specifically, the present invention relates to an anti-freeze that can prevent freezing and allow rapid water supply without warming valves and pipes.

Floating power is a water supply to prevent freezing and freezing by cold weather in winter. The conventional technology for the floating power is the floating power using the insulation means for valves and pipes and the internal structure of the floating power itself. Although it can be roughly classified, the latter is preferable for effective freeze protection, and such conventional antistatic operation is disclosed in the following literature.

Republic of Korea Utility Model Publication No. 91-1727 forms a toilet with a discharge ball on the left and right sides of the upper part of the toilet's toilet, and puts a check ball into the discharge room to form an annular packing seat on the inner peripheral surface of the toilet's inner peripheral surface. This invention discloses a passivation device formed with a through hole in a cylindrical presser having a thickness that can press the annular or C-shaped elastic packing to be expanded.

In Korean Utility Model Publication No. 92-4700, the wall side is provided inside the water pipe connected to the water cock. The metal fittings with the drainage hole are integrally connected to the lower part of the water pipe. It is disclosed for the antifreeze configured by joining the conduit to the bracket so that the pointed lower edge to open and close the lower edge.

In addition, US Pat. No. 4,971,097 also defines a housing having first and second ends and a passage for flow from the first end to the second end, a backflow preventing means for preventing backflow in the passage, and a drainage means in the housing. Disclosed is an antistatic operation in which a valve actuating means is formed in the housing so as to prevent flow into the exchangeable cartridge and the passage in the passage between the backflow preventing means and the first end of the housing.

However, the above-mentioned conventional anti-freeze has the following problems and has limitations in practical use in industry:

First, by forming a screw thread on the valve body before floating, by rotating the screw handle connected to the side of the screw thread combined with the electric screw, it is necessary to open and close the floating power, so it takes a long time to open and close the floating power, Abrasion can cause water in the tube to leak.

Second, because the bottom of the valve and the valve seat to open and close the water inlet while making a surface contact, a lot of pressure by the ground water is applied to the bottom of the valve and the contact surface of the valve seat, it was not possible to control the amount of drainage when draining through the floating.

Third, since the side or the valve rod is integral, a failure occurs frequently because the shock caused by the hydraulic pressure during opening and closing before the floating.

Fourth, the structure is complicated, not only easy to manufacture, but also easy to disassemble and repair.

The present invention is a partial improvement in order to solve the following problems with the Korean Utility Model Publication No. 93-9102 "freeze prevention valve" that the applicant has filed:

First, since a rigid rod is used as the valve rod, the valve rod is bent or broken due to the pressure applied to the valve rod during opening and closing before floating, causing failure.

Second, since the log cap and the valve rod were combined, the connection part was damaged by repeated operation of the pressing plate for opening and closing the floating power.

After all, the object of the present invention is simple structure, but using a small force in a short time can achieve the opening and closing of the floating power, it is possible to adjust the amount of drainage, reduce the pressure on the valve rod, the valve stem and connecting parts are bent or broken, etc. It is to provide a floating power that can prevent the failure of.

Floating power of the present invention for achieving the above object is a housing having an inlet and a drain; A valve stem including an upper rod made of pipe, an intermediate rod connected by an upper rod and a length adjusting coupling, and a lower rod connected by an intermediate rod and a swivel joint, for raising and lowering the plunger; A cam type pressing plate directly connected to the upper rod and pin of the valve stem to move the valve stem up and down to open and close the inlet; An inlet blocking means composed of an elastic member and a plunger which is lowered by the operation of the pressure plate to make a line contact with the valve seat and block the inlet; A drainage means consisting of a drainage hole and a drainage elbow for discharging water remaining in the interior of the floating field after the inflow of water is blocked by the inflow blocking means; And a leakage preventing means composed of a plunger provided with an O-ring for preventing the water introduced into the floating state by the operation of the pressure plate from leaking into the drain elbow.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the antistatic power of the present invention will be described in detail with the accompanying drawings.

1 is a cross-sectional view of an embodiment of the antifreeze of the present invention, the antifreeze of the present invention is an inlet for introducing water into the interior of the antifreeze from an external water supply source (not shown) having a high pressure in the housing ( 2) and the drainage port 3 for draining the water to the outside through the anti-freeze from the water supply source has a structure formed on the upper side of the housing 1 by using a T fitting. A valve stem consisting of a lower rod 5, an intermediate rod 6 and an upper rod 7 connected to the plunger 4 to open and close the plunger 4 blocking the inlet 2. The upper surface of the upper rod 7 is connected to the cam type pressing plate 8 so as to raise and lower it. At this time, in order to prevent breakage of the connecting portion between the pressing plate 8 and the upper rod 7 due to repeated opening and closing of the float, the pressing plate 8 is formed by forming a screw thread on the outer surface of the upper rod 7 and the inside of the pressing plate 8. Rather than joining the upper rod 7 and the upper rod 7, the upper rod 7 is directly connected to the pressing plate 8 using a pin. In addition, in order to prevent failures such as bending or breaking of the valve rod due to pressure applied to the valve rod during opening and closing of the floating power, a stainless steel pipe having a light weight and a high pressure resistance is used instead of the rigid rod. The length adjusting coupling 9 is installed between the upper rod 7 and the weekly rod 6 so as to adjust the length of the valve stem flexibly and to facilitate the assembly and repair of the float. When reciprocating, the intermediate rod 6 and the lower rod 5 are provided with a swivel joint 11 so as to alleviate the shock of the valve stem due to hydraulic pressure and to ensure that the plunger 4 is seated correctly on the valve seat 10. Are connected using. By raising the plunger 4, an elastic member 12 is installed on the outer surface of the upper rod 7 to lower the plunger 4 so that water flows into the floating field after the water flows into the floating field. By the restoring force of the elastic member 12, the inflow of the water into the interior of the floating state can be blocked. By using such an elastic member 12, as compared to the conventional device for turning the handle along the thread to block the inlet, it is possible to quickly block the inflow of water with less force, as well as water leakage due to the wear of the thread The phenomenon can be prevented. A plunger 4 is installed at a lower end of the lower rod 5, and the water plunger 4 flows out of the inlet port 2 when the water flows due to the rise of the plunger 4 to the drain port 3. At least one inlet 13 is formed. In addition, the upper and lower parts of the outer surface of the plunger 4 is provided with an O-ring 18 to prevent the water flowing into the floating through the discharge hole 14 during the inflow of water and the inflow of water to the lower surface of the plunger 4 In order to shut off, a gasket 15 connected by a connecting means such as a screw is installed to seat the plunger 4 on the valve seat 10. At this time, the gasket (15) and the valve on the lower surface of the plunger (4) in order to reduce the pressure by the water supply source of the contact surface of the plunger (4) and the valve seat 10 and to allow a minute adjustment of the drainage amount during drainage through the floating power The sheet 10 is formed so that line contact is made instead of surface contact. On the other hand, water is introduced by the rise of the plunger 4, and then the plunger 4 is lowered and the plunger 4 is seated on the valve seat 10, so that the inflow of water before floating is blocked and remains inside the float. In order to discharge the water to the outside, the valve body 16 is provided with a drain hole 14 and the drain elbow (drain elbow) (1).

FIG. 2 is a partial cross-sectional view of the antifreeze of the present invention showing another embodiment of the plunger. In the antifreeze of the present invention, a rubber sheet 15 in which the rubber gasket 15 is attached to the lower part of the plunger 4 shown in FIG. In place of the plunger 4 of the seat type, a metal touch type plunger 4a made of a hemispherical or corn shaped metal material without a rubber gasket may be used. In this case, like the rubber sheet type plunger 4, the plunger 4a and the valve seat 10 may be in line contact, thereby reducing the pressure by the water supply source of the contact surface of the plunger 4a and the valve seat 10. When draining through, it becomes possible to adjust the amount of drainage.

Thus, the antifreeze of the present invention is easy to disassemble and assemble and can pull up all the components from the upper part, so that the parts can be easily broken and replaced when the parts are damaged or worn, and a cam-type press plate (if necessary) 8), by replacing the upper end of the housing 1 and the elastic member 12 with the upper end of the housing provided with a rotary handle and a screw thread as shown in FIG. 3, it can be easily modified to handle similar to the existing outdoor fire hydrant.

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

4 (a) is a cross-sectional view showing the water remaining in the interior of the floating field of the present invention shown in FIG. 1, the pressing plate (8) to stop the use of the floating field of the present invention housing (1) When lifted so as to be perpendicular to the valve, the gasket 15 attached to the lower surface of the plunger 4 is lowered by the restoring force of the elastic member 12 installed on the outer surface of the upper rod 7. It is seated on the inlet (2) is blocked the inflow of water. On the other hand, the water remaining in the interior of the floating field is lowered to the lower portion of the floating field by gravity and automatically discharged to the outside through the drain elbow (17) through the discharge hole 14 installed in the valve body 16, The water does not remain, and as a result, it is possible to prevent freezing of the tap water due to the harsh winter season. When the plunger 4 is seated on the valve seat 10 by the restoring force of the elastic member 12, the plunger 4 is moved by the swivel joint 11 provided between the intermediate rod 6 and the lower rod 5. It does not idle along the valve stem and extends the life of the valve seat 10, and also ensures that the plunger 4 is correctly seated on the valve seat 10 even when the valve rod is bent.

4 (b) is a cross-sectional view showing a state in which water flows in the floating state of the present invention shown in FIG. 1, and presses the cam-type pressing plate 8 so as to be horizontally 13 with the housing 1, the upper rod 7, the length The plunger 4 connected through the adjusting coupling 9, the intermediate rod 6, the swivel joint 11 and the lower rod 5 is lifted so that the inlet 2 is opened and water from the water supply source is inlet 2 Flows into the space between the plunger 4 and the valve seat 10, and then into the space of the housing 1 and the valve stem through at least one inlet 13 passing through the interior of the plunger 4. . At this time, the water introduced into the floating state by the O-ring 18 placed on the upper and lower portions of the outer surface of the plunger 4 is not leaked through the discharge hole (14). Water introduced into the space of the housing 1 and the valve stem is discharged to the outside through the drain port 3 connected by the T fitting to the housing 1.

As described in detail above, the anti-freeze of the present invention is simple in structure, but can be opened and closed by using a small force in a short time, the amount of displacement can be adjusted, the pressure applied to the valve rod can be reduced and the valve stem and It can be applied to sprinklers, fountains and tap water facilities, as it can be used to prevent breakdowns such as bending or damage, as well as easy disassembly and repair and prevent water consumption due to leakage. It is applicable to emergency showers and face wash machines in factories, laboratories, water treatment facilities and power plants.

Claims (1)

A housing having an inlet and a drain, a valve stem for raising and lowering the plunger installed therein, and a cam type press plate for lowering the opening and closing of the inlet by moving the valve stem up and down to move the valve stem up and down by the operation of the press plate. And an inlet blocking means composed of an elastic member and a plunger for blocking the inlet and a drainage means composed of a drainage hole and a drainage elbow for discharging water remaining inside the floating field after the inflow of the water is blocked by the inlet blocking means. And a leakage preventing means composed of a plunger provided with an plunger for preventing water from flowing into the drainage elbows by the operation of the pressure plate. The electric valve stem includes an upper rod and an upper portion of a pipe. With intermediate rod and intermediate rod and swivel joint connected by rod and length coupling Includes a connected lower rod; The cam presser is connected directly to the upper rod of the valve stem with a pin; And, the inlet blocking means is in line contact with the valve seat.