KR101959992B1 - A flow adjusting valve for heating water distribution device - Google Patents

Abstract

The present invention relates to a flow rate control valve for a hot water distributor. The flow rate control valve for a hot water distributor includes: a valve body (110); a housing (120) screw-coupled to an inner peripheral surface of a coupling part (112) of the valve body (110); a lower guide (130) configured to guide a valve step (150) such that the valve step (150) may elevate; an upper guide (140) having a through-hole (140a), through which the valve step (15) may pass, and configured to guide the valve step (150) such that the valve step (150) may elevate; a valve step (150) provided in the upper guide (140) and the lower guide (130); a valve port (152) coupled to a lower end of the valve step (150); a first O-ring (161) configured to interrupt leakage of a fluid between the valve step (150) and the lower guide (130); a resilient support ring (162) fixed to an upper side of the valve step (150); a division ring (165) configured to divide the first O-ring (161) and a resilient member (163); and an elastic member (163), a lower end of which is resiliently supported by the division ring (165) and an upper end of which is resiliently supported by the resilient support ring (162) to apply a resilient force to the valve step (150). Accordingly, leakage of water can be prevented by preventing deviation of the O-ring for sealing even though the pressure of the water is very high.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flow regulating valve for a hot water dispenser,

The present invention relates to a flow rate control valve for a hot water dispenser, and more particularly, to a flow rate control valve for a hot water dispenser capable of preventing leakage of o-rings for sealing even when the water pressure is very high, .

Generally, the heating of residential space such as a house or an apartment uses hot water heated by a boiler, hot water heated by a boiler is supplied to a hot water distributor, where hot water is distributed to heat the room It is supplied by piping to heat the winter residential space with low temperature.

The hot water heated by the indoor floor via the heating pipe installed on the floor of the room is circulated to the boiler through the hot water distributor (the water return pipe), and the hot water circulated to the boiler is reheated again and then circulated to the hot water distributor And indoor heating is performed.

In a hot water distributor that distributes hot water to a heating pipe installed on an indoor floor of a conventional room or a living room, a micro flow rate control valve is installed in the hot water distributor to control the flow rate of hot water supplied to each heating pipe.

As a prior art related to a conventional micro flow rate control valve for regulating the flow rate, there have been proposed a regenerative flow rate control valve of Japanese Utility Model Application No. 20-0422394 (flow rate control valve for a distributor) and a publication No. 20-2009-0002301 It has been suggested.

However, the conventional flow rate control valve mounted in the hot water distributor has the following problems.

In the case of the conventional flow rate control valve, the lower end of the elastic member directly rubs against the O-ring. In such a structure, when the water pressure is greater than the elastic force of the elastic member, Pushing up, and there was a fatal problem in which the O-ring ran up and down. When the O-ring is released in this way, leakage occurs.

Secondly, in the related art, an O-ring is fastened to the outer circumferential surface of the housing of the flow rate control valve to prevent water leakage. In this case, there is a problem that the leakage leakage space becomes large, the leak probability increases and the leakage increases.

Third, the material of the conventional housing was metal (brass). It had to be buttery, durable at high pressure, and free from deformation, so it was made of brass, which in this case was costly.

Patent Document 1. Registration Practical Utility Model No. 20-0422394 (2006.07.26.) Patent Document 2. Public Utility Model Publication No. 20-2009-0002301 (Mar.

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 flow control valve for a hot water dispenser,

First, by adopting the configuration of the compartment ring and the pushing blade, even if the water pressure is very high, the first o-ring can be pressed to prevent the o-ring from coming off,

Second, the housing, the upper guide, and the lower guide are separated from each other, and the second O-ring is provided in the lower guide which is installed close to the valve seat as a whole, thereby narrowing the leakage space (by reducing the leakage space, It is possible to lower the leak rate to 50% or less,

Thirdly, it is an object of the present invention to provide a flow control valve for a hot water dispenser which is suitable for lowering the cost of a product by molding the housing into a synthetic resin.

In order to accomplish the above object, the present invention provides a flow rate control valve for controlling a flow rate of a fluid supplied to a pipe connected to a pipe through which a fluid is conveyed, the flow rate control valve comprising: And a valve seat having a fluid passage hole formed therein so that the inflow fluid can flow out only through the fluid passage hole, and a valve portion having a coupling portion communicating with the fluid passage hole of the valve seat protruding outwardly And a through hole through which the valve stem can pass is formed in a vertical direction so as to be inserted into the inner circumferential surface of the coupling portion of the valve body at a lower side of the housing, A lower guide for guiding the valve stem so as to be movable up and down; An upper guide which guides the valve stem so that the valve stem can be moved up and down so that a through hole through which the valve stem can pass through is coaxially inserted into the upper and lower guides, A valve stem fixed to the lower end of the valve stem to regulate an opening degree of the fluid passage hole in accordance with the lifting and lowering of the valve stem, A valve stem fixed to the upper side of the valve stem, a valve ring disposed coaxially with the valve stem, the valve seat being seated on the upper surface of the lower guide from the upper side of the first O-ring, And a lower end thereof is mounted on the partition ring and an upper end thereof is mounted on the flange ring, It is characterized in that comprises a resilient member for applying a resilient force to the system.

The flow control valve for a hot water dispenser of the present invention having the above-described structure has the following effects.

First, even if the water pressure is very high, the first o-ring can be depressed by the configuration of the compartment ring and the pushing blade, so that leakage can be prevented completely.

Second, the housing, the upper guide, and the lower guide are separated from each other, and the second O-ring is provided in the lower guide which is installed close to the valve seat as a whole, thereby narrowing the leakage space (by reducing the leakage space, The leakage degree can be lowered to 50% or less.

Third, the housing can be integrally formed of synthetic resin, thereby reducing the cost of the product.

1 is a sectional view of a flow control valve for a hot water distributor according to an embodiment of the present invention.
2 is an exploded perspective view of a flow control valve for a hot water distributor according to an embodiment of the present invention.
FIG. 3 is a detailed exploded perspective view of FIG. 2. FIG.
4 is a bottom perspective view of the upper guide 140 in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a flow rate control valve for a hot water dispenser according to the present invention will be described in detail with reference to the accompanying drawings.

The flow rate control valve for a hot water dispenser according to an embodiment of the present invention basically has a flow rate scale to adjust (set) the flow rate and also functions as an on-off valve automatically when the actuator is mounted It is an on-off common micro flow control valve that can be operated.

As shown in the drawings, a flow rate control valve for a hot water dispenser according to an embodiment of the present invention is a flow rate control valve for controlling a flow rate of a fluid supplied to a pipe connected to a pipe through which a fluid is transferred, And a valve seat 114 having a fluid passage hole 114a formed therein so that the inflow fluid can flow out only through the fluid passage hole 114a, A valve body 110 in which a coupling portion 112 communicating with the fluid passage hole 114a is protruded outward and a housing 120 which is screwed on an inner circumferential surface of the coupling portion 112 of the valve body 110, And a through hole 130a formed in the inner peripheral surface of the coupling part 112 of the valve body 110 below the housing 120 and through which the valve stem 150 can pass is formed in a vertical direction So that the valve stem 150 can move up and down And a through hole 140a which is coaxially inserted into the housing 120 from the upper side of the lower guide 130 and through which the valve stem 150 can pass is formed in a vertical direction An upper guide 140 guiding the valve stem 150 to be movable up and down; a valve stem 150 vertically movable up and down the upper guide 140 and the lower guide 130; A valve port 152 which is tightened at a lower end of the valve stem 150 to regulate the opening of the fluid passage hole 114a in accordance with the lifting and lowering of the valve stem 150, A first O-ring 161 inserted in the valve stem 150 to block leakage of fluid between the valve stem 150 and the lower guide 130, a tangential ring 162 fixed to the upper side of the valve stem 150, The first O-ring (161) is provided coaxially with the stem (150) A partition ring 165 which is seated on the upper surface of the guide 130 and divides the first O-ring 161 and the elastic member 163, a lower end fixed to the partition ring 165, And an elastic member 163 elastically biased by the valve stem 150 to act on the valve stem 150.

The flow rate control valve for the hot water dispenser according to the embodiment of the present invention includes a flow rate adjusting handle 181 for adjusting the opening rate of the valve port 152, And a flow adjusting nut 185 screwed on the upper portion of the upper guide 140 to adjust the lift distance of the valve stem 150.

In the flow rate control valve for a hot water dispenser according to an embodiment of the present invention, the lower end of the lower guide 130 may be provided with a coupling portion (not shown) so as to enclose the valve seat 114 And a pushing blade 167 formed on the inner circumferential surface of the upper guide 140 and protruding downward from the lower end of the upper guide 140 to press the cut ring 165 downward, 167 press the dividing ring 165, the dividing ring 165 presses the first O-ring 161 to prevent the first O-ring 161 from coming off.

According to the above-described structure, even if the water pressure is very high, the first o-ring 161 can be pressed to completely prevent the o-ring 161 from leaking.

In the flow rate control valve for a hot water distributor according to the embodiment of the present invention, the pushing vanes 167 are formed as a pair in opposition to each other.

In the meantime, in the flow rate control valve for a hot water distributor according to an embodiment of the present invention, the pressing wings 167 are formed as a pair, but the present invention is not limited thereto. Ring 165, all of which fall within the technical scope of the present invention.

In the flow control valve for a hot water dispenser according to an embodiment of the present invention, a seating groove 131 formed to be stepped outward from a through hole 130a of the lower guide 130 is formed, 161 are seated in the seating groove 131. A seating table 132 formed to be stepped outward from the seating groove 131 is recessed from the upper surface of the lower guide 130, A lower guide wing 133 is protruded upward from the seating table 132 and the pressing wing 167 is disposed on the inner surface of the lower guide wing 133 And is protruded downward from the lower end of the upper guide 140 so as to be closely contacted.

In the flow rate control valve for a hot water dispenser according to the embodiment of the present invention, an insertion groove 134 is formed in the upper surface of the lower guide 130 so as to be spaced apart from the lower guide vane 133, The upper guide 140 is disposed on the upper side of the lower guide 130 so as to be inserted into the insertion groove 134 Is provided.

The guide vanes 133 are formed in pairs so as to face each other and the insertion grooves 134 are formed so as to face each other between the pair of guide vanes 133, Is formed in the upper guide (140) so that the upper guide (164) is inserted.

According to this, there is an advantage that the assembly can be made easy, quick and convenient and the product can be made compact.

In the flow control valve for a hot water dispenser according to an embodiment of the present invention, a fitting groove 137 is formed by being inserted inwardly in the outer circumferential surface of the lower guide 130, and the fitting portion 112 of the valve body And a second O-ring (171) fitted to the fitting groove (137) so as to be closely contacted to block leakage of water.

The housing 120, the upper guide 140 and the lower guide 130 are separated from each other and the second O-ring 171 is installed in the lower guide 130 installed close to the valve seat 114 as a whole, It is advantageous in that the leaked space can be reduced to 50% or less by narrowing the leaked space (the leaked space becomes smaller as the position of the leaked space is lowered).

Conventionally, the O-rings are fastened to the outer circumferential surface of the housing 120 to prevent water leakage. In this case, there is a problem that the leakage leakage space becomes large, the leak probability increases, and the degree of leakage increases.

In the flow rate control valve for hot water dispenser according to an embodiment of the present invention, the housing 120 is formed of synthetic resin.

The housing 120 is formed of PPS. According to this, there is an advantage of being able to withstand the high pressure water pressure, and therefore, there is no deformation and the cost can be reduced.

In the flow regulating valve for a hot water dispenser according to the embodiment of the present invention, the lower guide 130 is formed with an opening 130c for passing the fluid that has passed through the fluid passing hole 114a to the outflow port.

Reference numeral 187 denotes a valve cap 187 which is screwed to the coupling portion 112. Reference numeral 11 denotes a nipple 11 for connection with a pipe, numeral 12 denotes a nipple nut 12, Numeral 13 is a sealing ring 13.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the appended claims. It is obvious to those who have.

Therefore, it should be understood that the above-described embodiments are illustrative rather than restrictive.

The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and range of the claims and their equivalents should be construed as being included in the scope of the present invention.

110: valve body 112: engaging portion
114: valve seat 114a: fluid passage hole
120: housing 130: lower guide
130a: Through hole 130c:
131: seat groove 132: seating seat
133: lower guide wing 134: insertion groove
137: fitting groove 140: upper guide
140a: Through hole 150: Valve stem
152: valve port 161: first o-ring
162: tongue ring 163: elastic member
164: fitting piece 165:
167: Pressing blade 171: Second O-ring
181: Flow adjustment handle 185: Flow adjustment nut
187: valve cap 11: nipple
12: Nipple nut 13: Sealing ring

Claims (4)

A flow control valve for controlling a flow rate of a fluid supplied to a pipe by being connected to a pipe through which the fluid is transferred,
A valve seat 114 having a fluid passage hole 114a formed therein so that the inflow fluid can flow out only through the fluid passage hole 114a, A valve body 110 having a coupling portion 112 communicating with the fluid passage hole 114a of the valve body 114 protruding outward,
A housing 120 to be screwed on an inner circumferential surface of a coupling portion 112 of the valve body 110,
A through hole 130a which is inserted into the inner circumferential surface of the coupling part 112 of the valve body 110 below the housing 120 and through which the valve stem 150 can pass is formed in the vertical direction, A lower guide 130 for guiding the stem 150 to be movable up and down,
A through hole 140a which is coaxially inserted into the housing 120 from the upper side of the lower guide 130 and through which the valve stem 150 can pass is formed in the vertical direction, An upper guide 140 guiding the upper guide 140,
A valve stem 150 vertically movable up and down on the upper guide 140 and the lower guide 130,
A valve port 152 coupled to a lower end of the valve stem 150 to regulate the opening of the fluid passage hole 114a in accordance with the lifting and lowering of the valve stem 150,
A first O-ring 161 axially installed in the valve stem 150 and installed in the lower guide 130 to block leakage of fluid between the valve stem 150 and the lower guide 130,
An annular ring 162 fixed to the upper side of the valve stem 150,
A valve shaft 150 which is coaxial with the valve stem 150 and which is seated on the upper surface of the lower guide 130 from above the first O-ring 161 to define a first O-ring 161 and an elastic member 163 Ring 165,
And an elastic member 163 whose lower end is biased by the partition ring 165 and whose upper end is biased by the elastic ring 162 to exert an elastic force on the valve stem 150,
The lower end of the lower guide 130 is provided on the inner circumferential surface of the engaging portion 112 so as to cover the valve seat 114,
And a pushing blade 167 protruding downward from the lower end of the upper guide 140 to press down the dividing ring 165,
When the pushing vane 167 presses the dividing ring 165, the dividing ring 165 presses the first o-ring 161 to prevent the first o-ring 161 from escaping,
The first O-ring 161 is seated in the seating groove 131, and the first O-ring 161 is seated in the seating groove 131,
A seating base 132 formed to be stepped outwardly from the seating groove 131 is recessed from the upper surface of the lower guide 130. The seating ring 165 is seated on the seating base 132,
A lower guide vane 133 protrudes upward from the seating table 132,
Wherein the pushing vane (167) is protruded downward from a lower end of the upper guide (140) so as to be in close contact with the inner surface of the lower guide vane (133).
The method according to claim 1,
An insertion groove 134 is formed on the upper surface of the lower guide 130 so as to be spaced apart from the lower guide vane 133,
The pushing piece 164 is spaced outwardly from the pushing vane 167 and protrudes downward,
Wherein the upper guide (140) is provided on the upper side of the lower guide (130) so that the fitting piece (164) is inserted into the insertion groove (134).
The method of claim 2,
A fitting groove 137 is formed in the outer peripheral surface of the lower guide 130 so as to be inserted inward,
And a second O-ring (171) fitted in the fitting groove (137) to close the valve body (110) and to block leakage of the water. valve.
The method of claim 3,
Wherein the housing (120) is formed of a synthetic resin.

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