KR101420711B1 - Angle valve - Google Patents

Abstract

According to an embodiment of the present invention, an angle valve has: a first through-hole exposed to the atmosphere on a valve shaft; a second through-hole formed on the bottom of the first through-hole separated into the inside of a valve body; and a hollow portion funneled to the first and second through-holes inside the valve shaft. When the angle valve is opened to become a water-through status, the second through-hole is closed to block a water leakage. When the angle valve is closed to become a water-closed status, the second through-hole and a discharging hole is funneled to pass water remaining in a water gauge and water pipes through the first through-hole and to exit the angle valve. Thereby, in accordance with the opening and closing of the angle valve, the opening and closing of the second through-hole can be automatically operated, thus enhancing the convenience in manipulating the angle valve.

Description

Angle valve {ANGLE VALVE}

The present invention relates to an angle valve, and more particularly, to an angle valve capable of smoothly discharging water remaining in a water meter and a water pipe while the angle valve is closed, thereby preventing the water pipe and the water meter from freezing in the winter To an angle valve.

As is well known, an angle valve is provided at a connection portion between an inlet pipe and a discharge pipe formed in a direction perpendicular to the center line, and is used for interrupting the supply of fluid supplied to the discharge pipe through the inlet pipe.

An inlet pipe 16 connected to the water pipe is connected to the lower portion of the angle valve 5 and an outlet pipe 5 connected to one side of the angle valve 5 (17) is provided with a water meter (11) for measuring the flow rate of the feed water. The water discharged through the discharge pipe (17) is supplied to a use place such as a home or a factory.

The angle valve 5 and the water meter 11 are installed inside the water meter box 10 and the water meter 20 is installed in the water meter box 10 to prevent freezing of the water meter 11 during the winter season And a lid 30 which can be opened and closed is installed on the upper part of the water meter box 10.

When the water is used, the opening / closing handle 3 connected to the upper portion of the angle valve 5 is rotated in one direction to open the valve so that water is supplied. When the water is discharged, the opening / closing handle 3 is rotated in the opposite direction, Closing and blocking the supply of water.

When the temperature of the water is lowered in the winter season, when the pipe valve (faucet or the like) is closed, the water in the water meter 11 and the discharge pipe 17 is frozen and the volume of the ice is expanded. ) And the water pipe connected to the water pipe are corroded.

FIG. 2 shows an angle valve having a drain hole disclosed in the registration number 20-0237272, for preventing the winter wave during the winter season.

2, an angle valve 5 according to the related art is provided with a valve 2 inside a moving body 1, and the valve 2 has a spindle 4 And the valve 2 can be opened or closed by rotating the opening and closing handle 3 in the clockwise or counterclockwise direction in the normal angle valve 5 of the angle valve 5 And a normal ball valve 8 with a sealing o-ring 7 interposed therebetween is formed in the screw hole 6 by forming a screw hole 6 at a proper position of the side surface of the cylinder block 1. The ball valve 8 is configured to open and close the ball 15 by rotating the handle 15 at an angle of 90 degrees by connecting a ball 14 having a water supply hole 13 to the handle 15 in the body 12. [

During the winter season, water is used to open the valve (2) by turning the opening / closing handle (3) while the ball valve (8) is locked. During the winter, the valve (2) The water remaining in the tap water meter 11 and the discharge pipe 17 is discharged through the screw hole 6 and the water supply hole 13 by turning the knob rear handle 15 to the open position, Thereby preventing the meter 11 from being frozen or malfunctioning.

However, the conventional angle valve 5 configured as described above has a structure in which the screw hole 6 is formed in one side of the moving body 1 and the ball valve 8 is fastened to the screw hole 6, In a state where the angle valve 5 is opened for use of water, the handle 15 of the ball valve 8 is rotated so as to be in a closed state for preventing water leakage, and in a state where the angle valve 5 is closed It is necessary to rotate the handle 15 of the ball valve 8 in the opened state in order to discharge the water remaining in the water meter 11 and the discharge pipe 17, There is a problem in that the manual operation for opening and closing the door 8 must be accompanied by inconvenience in use.

When the negative pressure acts on the inside of the water meter 11 and the discharge pipe 17 installed on the discharge side of the angle valve 5 in the state of being closed by closing the angle valve 5, the ball valve 8 is opened The water remaining in the water meter 11 and the discharge pipe 17 can not be smoothly discharged to the outside even if the screw hole 8 is opened.

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above problems and it is an object of the present invention to provide a water meter which is installed on the discharge side of an angle valve and water remaining in the water pipe smoothly discharged when the angle valve is locked, And an angle valve for preventing freezing of the water pipe.

The angle valve 100-1 according to the first embodiment of the present invention for achieving the object described above has a structure in which an inner side of the lower end connecting hole 111 and an upper end connecting hole 112, A valve body 110 integrally formed with a valve seat portion 116 having a discharge port 113 in the direction of the discharge port 113 and having an opening and closing hole 115 communicating with the lower end connection port 111; A valve cover 120 that hermetically closes the upper end of the valve body 110 and is detachably coupled to the upper end connector 112; And a valve shaft 130 coupled to the opening and closing member 140 for opening and closing the opening and closing hole 115. The valve shaft 130 is disposed to be able to move up and down through the valve cover 120, A first through hole 135 exposed in the atmosphere, a second through hole 136 located below the first through hole 135 and located inside the valve cover 120, A hollow portion 137 communicating with the first through hole 135 and the second through hole 136 and provided inside the valve shaft 130 is formed and the valve shaft 130 is moved upward, The communication between the space portion 125 provided between the inner surface of the valve cover 120 and the outer surface of the valve shaft 130 and the second through hole 136 is blocked When the valve shaft 130 is moved downward and the opening and closing hole 115 is closed by the opening and closing member 140, Characterized in that configured so that the communication (114) and the space portion 125 and the second through hole 136. The

In this case, the valve cover 120 is provided with a hermetic member 122 for guiding the upward and downward movement of the valve shaft 130 while keeping the hermetic state, and the valve shaft 130 is moved upward, When the hole 115 is opened, the second through hole 136 is closed by the hermetic member 122. When the valve shaft 130 is moved downward to close the opening / closing hole 115 And the second through hole 136 is moved to the lower side of the hermetic member 122 to be located in the space 125. [

The angle valve 100-2 according to the second embodiment of the present invention includes a valve body 110 having a valve body 110 having a valve body 111 having a horizontal outlet 113 formed at one side between a lower end connection 111 and an upper end connection 112, A body 110; A valve cover 120 detachably coupled to the upper end connecting portion 112 while sealing an upper end of the valve body 110; A valve shaft 130 disposed to be able to move up and down through the valve cover 120 and having an opening / closing member 140 coupled to a lower end thereof; A lower body 160 detachably coupled to the lower end coupling 111 of the valve body 110 and having a space for water to be introduced therein; An opening and closing hole 172 which is vertically moved up and down in association with the lifting and lowering of the valve shaft 130 in the lower body 160 and is opened and closed by the opening and closing member 140, The valve shaft 130 is provided with a first through hole 135 exposed in the atmosphere and a second through hole 135 exposed to the outside of the first through hole 135, A second through hole 136 positioned inside the valve cover 120 and communicating with the first through hole 135 and the second through hole 136 and provided inside the valve shaft 130 And the opening and closing member 140 is formed on one side surface of the lower body 160 with the second through hole 136 and the second through hole 136 in a state in which the opening and closing hole 172 is closed, And a discharge hole 164 communicating with the discharge port 113 is formed to pass through.

In this case, the valve cover 120 is provided with a hermetic member 122 for guiding upward and downward movement of the valve shaft 130 while keeping the hermetic state, and the valve shaft 130 is moved upward, When the hole 172 is opened, the second through hole 136 is closed by the hermetic member 122. When the valve shaft 130 is moved downward to close the opening / closing hole 172 The second through hole 136 is moved to the lower side of the hermetic member 122 to be positioned in the space 125 provided between the inner surface of the valve cover 120 and the outer surface of the valve shaft 130 .

When the valve shaft 130 is moved upward and the opening / closing hole 172 is opened, the lifting member 170 is closed by the elastic force of the elastic member 180 The upper end of the lifting member 170 is moved upwardly to the upper side of the water discharging hole 170 when the elevating member 170 is moved downward while closing the opening and closing hole 172 in conjunction with the downward movement of the valve shaft 130. [ 164, and the water discharge hole 164 is opened.

The valve cover 120 or the valve shaft 130 may have a space 125 formed between the inner surface of the valve cover 120 and the outer surface of the valve shaft 130, And a communication groove 138 communicating with a chamber 114 provided inside the valve body 110 is formed.

A male thread 133 is formed on the outer circumference of the valve stem 130 and is screwed to a female thread 120d formed on the inner circumference of the valve stem 120, The screw part 133 is provided with a space part 125 provided between the inner surface of the valve cover 120 and the outer surface of the valve shaft 130 and a chamber 114 provided inside the valve body 110 And a communicating groove 138 communicating with the communication hole 138 is formed.

In this case, the communication grooves 138 may be formed in a plurality of circumferentially spaced apart peripheral portions of the male screw portions 133 along the longitudinal direction.

According to the angle valve according to the first embodiment of the present invention, the first through hole exposed to the atmosphere in the valve shaft and the second through hole, which is spaced apart from the lower through hole and located inside the valve body, are formed, The second through hole is closed to block the leakage of water when the angle valve is open and the angle valve is closed to close the second through hole, The water outlet and the water outlet are communicated with each other so that the water remaining in the water meter and the water pipe is discharged to the outside of the angle valve through the first through hole so that the opening and closing of the second through hole is automatically performed according to the opening and closing of the angle valve, The operational convenience of the valve is improved.

According to the angle valve according to the second embodiment of the present invention, the first through-hole exposed in the air in the valve shaft and the second through-hole spaced apart from the lower through-hole are located inside the valve body. A hollow portion communicating with the first through hole and the second through hole is formed and the lower body is formed with a drain hole communicating with the second through hole and the drain hole in a stepped state so that when the angle valve is locked and disconnected, The water meter and the water remaining in the water pipe can be smoothly discharged to the outside through the water discharge hole by the atmospheric pressure.

In addition, according to the angle valve according to the second embodiment of the present invention, when the angle valve is open and in the water flow state, the second through hole and the water discharge hole are sealed by the hermetic member and the elevating member, The second through hole and the water discharge hole are opened so that the water remaining in the water meter and the water pipe can be discharged. The operation convenience of the angle valve is improved.

1 is a view showing an installation state of an angle valve,
2 is a partial cutaway view of an angle valve according to the prior art,
3 is a perspective view of an angle valve according to a first embodiment of the present invention,
4 is an exploded perspective view of the angle valve according to the first embodiment of the present invention,
FIG. 5 is a cross-sectional view showing the flow of the angle valve according to the first embodiment of the present invention,
6 is a cross-sectional view of the angle valve according to the first embodiment of the present invention,
7 is a perspective view of an angle valve according to a second embodiment of the present invention,
8 is an exploded perspective view of an angle valve according to a second embodiment of the present invention,
FIG. 9 is a cross-sectional view showing the flow of the angle valve according to the second embodiment of the present invention,
FIG. 10 is a cross-sectional view of the angle valve according to the second embodiment of the present invention,
11 is a sectional view showing a modification of the second embodiment shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, the same reference numerals are used for the same constituent elements as those of the conventional art.

FIG. 3 is a perspective view of an angle valve according to a first embodiment of the present invention, and FIG. 4 is an exploded perspective view of an angle valve according to the first embodiment of the present invention.

The angle valve 100-1 according to the first embodiment of the present invention is characterized in that the lower end connection port 111 and the upper end connection port 112 are opened in the vertical direction and the discharge port 113 is formed at one side between the upper end connection port 111 and the upper end connection port 112, A valve body 110 integrally formed with a valve seat portion 116 having an opening and closing hole 115 communicating with the lower end connecting portion 111 and an upper end connecting portion 112 sealing the upper end of the valve body 110, And an inner space of the valve body 110 in a state in which the angle valve 100-1 is in a closed state of being opened and closed. The valve cover 120 is detachably coupled to the valve body 120, An opening and closing member 140 coupled to a lower end portion 134 of the valve shaft 130 and a handle 130 coupled to an upper end of the valve shaft 130. The valve shaft 130 has flow paths 135, 150).

The valve body 110 is provided with a chamber 114 at a connecting portion where the lower end connecting portion 111 and the upper end connecting portion 112 and the discharging opening 113 are perpendicular to each other. When the angle valve 100-1 is in the open state, the chamber 114 provides a water supply channel to supply the water flowing through the lower end connection port 111 to the discharge port 113. When the angle valve 100 is closed The water meter 11 and the discharge pipe 17 and the water pipe that is connected thereto.

The valve cover 120 is coupled to an upper end connecting portion 112 of the valve body 110 to seal the upper end of the valve body 110 and to guide the valve shaft 130 to move up and down. The valve cover 120 may be screwed to the valve body 110. In this case, a female screw portion 112a is formed on the inner circumference of the upper end connecting portion 112 of the valve body 110, 120 have a male screw portion 120a corresponding to the female screw portion 112a. A nut portion 120b for tool operation such as a wrench is formed at the middle portion of the outer surface of the valve cover 120 when the valve body 120 is screwed into the valve body 110. A nut 124 are formed on the male threaded portion 120c.

The valve cover 120 is formed with a female screw portion 120d which is screwed with the valve shaft 130 in the inner circumferential lower portion of the valve cover 120, A guide portion 121 protruding by a predetermined length toward the valve shaft 130 to guide the upward and downward movement of the valve shaft 130 is formed.

A cylindrical airtight member 122 which is opened upward and downward is inserted into the valve cover 120 at the upper side of the guide portion 121 and the inside of the valve cover 120 is connected to the upper side of the airtight member 122 And a fixing nut 123 which is screwed to the male screw portion 120c formed on the outer circumferential upper portion of the valve cover 120 and is in close contact with the fixing ring 123 is provided on the upper side of the fixing ring 123, (Not shown). The guide part 121 is formed integrally with the valve cover 120. The hermetic member 122 is made of synthetic resin or rubber and the fixing ring 123 is made of a metal.

The valve stem 130 includes a cylindrical body portion 131 and a polygonal portion 132 formed at an upper end of the body portion 131 for coupling the handle 150 to the body portion 131, A male screw portion 133 formed on the lower outer periphery of the body portion 131 and screwed to a female screw portion 120d formed on the inner periphery of the valve cover 120, 134a, respectively.

A first through hole 135 is formed at an upper portion of the body portion 131 to be exposed to the atmosphere and a second through hole 135 is formed at a lower portion of the body portion 131, And a hollow portion 137 communicating with the first through hole 135 and the second through hole 136 is formed in the body portion 131. In addition,

A space 125 is formed between the inner circumferential surface of the valve cover 120 and the body 131 of the valve stem 130 below the guide 121 and spaced apart from each other.

A communicating groove 138 for communication between the space 125 and the chamber 114 in the valve body 110 may be longitudinally formed in the male screw portion 133 of the valve shaft 130 have. In this case, the communication groove 138 may be formed in a single number in the male screw portion 133, but may be formed in two or more in the circumferential direction on the outer circumference of the male screw portion 133 for smooth communication.

In this embodiment, the communicating groove 138 is formed in the male screw portion 133. However, in another embodiment, the communicating groove 138 may be a nut portion formed on the inner surface of the valve cover 120 120d, and may be formed integrally with the male threaded portion 133 and the nuted portion 120d.

The communication groove 138 is not formed and the communication between the chamber 114 and the space portion 125 is made possible through the clearance between the male screw portion 133 and the nut portion 120d, It is possible to set the threads of the threaded portion 133 and the nut portion 120d and the dimensions of the threaded bore.

The opening and closing member 140 includes a metal fixing member 141 having a ring insertion groove 141a into which a ring 139 to be coupled to the lower end 134 of the valve shaft 130 is inserted, And a packing 142 made of synthetic resin or rubber, which is coupled to the lower portion of the body 141. The packing 142 may be coupled to the fixture 141 by a fastening member 143 fastened to the lower end portion 134 of the valve stem 130 through a through hole 142a formed at the center thereof.

When the opening and closing member 140 is configured to be coupled to the lower end portion 134 of the valve shaft 130 via the ring 139 as described above, the valve shaft 130 and the opening and closing member 140 can be relatively rotated Even if the valve shaft 130 is rotated while the packing 142 of the opening and closing member 140 is in close contact with the valve seat portion 116 formed in the valve body 110, the opening and closing member 140 is not rotated, The wear of the packing 142 due to the friction between the packing 142 and the valve seat portion 116 can be prevented.

The handle 150 functions to facilitate the turning operation of the valve shaft 130 and includes a handle 151 connected to the handle 151 and a polygon formed at the center of the handle shaft 150, And a polygonal hole 152 into which the part 132 is inserted. The polygonal portion 132 and the polygonal hole 152 function to transfer the rotational force of the handle 150 to the valve shaft 130 without causing the valve shaft 130 to idle during the rotation of the handle 150 . The polygonal portion 132 of the valve shaft 130 is inserted into the polygonal hole 152 of the handle 150 through the valve cover 120 and the fixing nut 124, A fastening member 155 is screwed to the nut 154 and a lower end of the fastening member 155 is fastened to the inside of the polygonal portion 132 of the valve shaft 130 Threaded portion 132a formed in the valve stem 130 to seal the upper portion of the hollow portion 137 formed in the valve stem 130. [

Hereinafter, the operation of the angle valve according to the first embodiment of the present invention will be described.

FIG. 5 is a cross-sectional view showing the flow of the angle valve according to the first embodiment of the present invention, and FIG. 6 is a cross-sectional view showing the state of the angle valve according to the first embodiment of the present invention.

5, when the angle valve 100-1 is opened, the valve shaft 130 is moved upward so that the opening and closing member 140 is spaced upward from the valve seat portion 116, (115) is opened. In this case, the first through hole 135 formed in the valve shaft 130 is exposed to the atmosphere, but the second through hole 136 is formed in the airtightness member 122 provided inside the valve cover 120 It becomes blocked.

The water supplied through the lower end connection port 111 flows through the opening and closing hole 115 and passes through the chamber 114 of the angle valve 100-1 and is discharged through the discharge port 113, In this case, since the second through-hole 136 is blocked by the hermetic member 112, leakage of the supply water through the first through-hole 135 is prevented.

6, when the angle valve 100-1 is closed, the valve shaft 130 is moved downward so that the opening and closing member 140 is brought into close contact with the valve seat portion 116, Lt; / RTI > In this case, the first through hole 135 formed in the valve shaft 130 is exposed to the atmosphere, and the second through hole 135 is formed in the space 125 provided below the hermetic member 122 The space portion 125 is in communication with the atmosphere through the first through hole 135 and the hollow portion 137 and the second through hole 136. The space portion 125 communicates with the atmosphere through the first through hole 135, (114) is in a communicative state through the communication groove (138) formed in the male threaded portion (133) of the valve stem (130).

Therefore, the water remaining in the water meter 11 and the discharge pipe 17 in the singular state is discharged through the discharge port 113, the chamber 114, the ventilation groove 138, Passes through the first through hole 125, the second through hole 136, the hollow portion 137, and the first through hole 135 and is discharged to the outside of the angle valve 100-1.

As described above, according to the configuration of the angle valve 100-1 according to the first embodiment of the present invention, the second through hole 136 is blocked when water is supplied to prevent leakage of the supply water, The second through hole 136 is opened and the water remaining in the water meter 11 and the discharge pipe 17 is smoothly discharged through the first through hole 135 to prevent freezing due to the remaining water in the winter season .

In addition, since the second through hole 136 is automatically opened and closed according to the opening and closing of the angle valve 100-1, it is possible to prevent leakage in the water flow state and to perform separate manual operation for removing the remaining water in the single water flow state The operation convenience of the angle valve 100-1 can be improved.

Hereinafter, the configuration and operation of the angle valve 100-2 according to the second embodiment of the present invention will be described, and a detailed description of the same configuration as that of the angle valve 100-1 according to the first embodiment will be omitted And a newly added configuration will be mainly described.

FIG. 7 is a perspective view of an angle valve according to a second embodiment of the present invention, and FIG. 8 is an exploded perspective view of an angle valve according to a second embodiment of the present invention.

The angle valve 100-2 according to the second embodiment of the present invention includes a valve body 100 having a lower end connection port 111 and an upper end connection port 112 opened in a vertical direction and having a discharge port 113 formed at one side thereof, A valve cover 120 that is detachably coupled to the upper end coupling 112 while sealing an upper end of the valve body 110; A valve shaft 130 having flow paths 135, 136, 137, 138 through which the internal space of the valve body 110 is communicated with the atmosphere in the closed state of the valve 100-2, a valve shaft 130 coupled to the lower end 134 of the valve shaft 130, A handle 150 coupled to an upper end of the valve stem 130 and a lower end connection port 111 of the valve body 110 to be detachably coupled to each other, A lower body 160 having a water discharge hole 164 formed at one side thereof, A lifting member 170 which is lifted and lowered in conjunction with lifting and lowering of the shafts 130 and formed with an opening and closing hole 172 which is opened and closed by the opening and closing member 140 so as to pass through the inside of the lower body 160, And an elastic member 180 for elastically supporting the elevation member 170.

The valve body 110 is provided with a chamber 114 at a connecting portion where the lower end connecting portion 111 and the upper end connecting portion 112 and the discharging opening 113 are perpendicular to each other. When the angle valve 100-2 is opened, the chamber 114 provides a water supply channel to supply the water flowing through the lower end connection port 111 to the discharge port 113. When the angle valve 100 is closed Provides a communication space between the water metering device 11 and the discharge pipe 17 of the water metering device 11 and the water discharge channel of the remaining water in the water pipe connected thereto and the atmosphere.

The valve cover 120, the valve shaft 130, the opening and closing member 140, and the handle 150 have the same structures as those of the first embodiment described above.

The lower body 160 may be screwed to the lower end connector 111 of the valve body 110. In this case, a female threaded portion 111a is formed on the inner peripheral edge of the lower end connecting portion 111 of the valve body 110, and an outer peripheral portion of the upper end connecting portion 162 of the lower body 160 corresponds to the female threaded portion 111a A male screw portion 162a is formed. The lower end of the lower body 162 is formed with a lower end connection port 163 through which water supplied from the water supply pipe flows.

The lower body 160 has an inner side surface on which an elevation member retaining jaw 165 for retaining the upper end 171a of the elevating member 170 and an elastic member supporting jaw 166 for supporting the lower end of the elastic member 180 (See Figs. 9 and 10).

Water remaining in the water meter 11 and the discharge pipe 17 and the water pipe connected to the water meter 11 is supplied to the valve body 110 at one side of the body part 161 of the lower body 160 in a state in which the angle valve 100 is closed, And a water discharge hole 164 through which the water is discharged from the chamber 114 is formed. The water discharge holes 164 may be formed in a single number or in a plurality of two or more.

In the present embodiment, the valve body 110 and the lower body 160 are configured to be separated from each other and coupled to each other by a screw method. However, in another embodiment, the valve body 110 and the lower body 160 Or may be constructed as an integral structure.

The elevating member 170 has an opening and closing hole 172 formed in a vertical direction inside the cylindrical portion 171 and an airtight seal is formed between the inner surface of the lower body 160 and the outer surface of the cylindrical portion 171 And an O-ring 173 for the O-ring 183 are vertically spaced apart. An O-ring 117 for maintaining the airtightness between the outer circumferential surface of the elevation member 170 and the inner circumferential surface of the valve body 110 during upward movement of the elevation member 170 is formed on the inner surface of the valve body 110, (Not shown).

In this embodiment, the elevating member latching protrusion 165, which is engaged with the upper end of the elevating member 170, is formed integrally with the lower body 160. However, as shown in FIG. 11, An upper end of the lifting member 170 is engaged with the snap ring 168 by inserting an insertion groove 167 into the insertion groove 167 and inserting a snap ring 168 into a peripheral edge of the lower body 160 It is possible.

The upper end of the lifting member 170 functions as a valve seat portion 171a on which an opening and closing member 140 for opening and closing the opening and closing hole 172 is seated. The opening and closing member 140 coupled to the lower end portion 134 of the valve shaft 130 is moved to the valve seat portion 171a by the rotation of the handle shaft 150 in the one direction And the opening and closing holes 172 of the elevating member 170 are closed so that the water supply to the discharge opening 113 is blocked.

On the contrary, when the valve shaft 130 is moved upward by the rotation of the handle 150 in the opposite direction (for example, counterclockwise), the opening / closing member 140 is spaced upward from the valve seat portion 171a, (172) is opened, whereby water is supplied to the discharge port (113) side.

The elastic member 180 is provided inside the lower body 160 below the elevating member 170 and functions to provide an upward elastic force to the elevating member 170, The upper end of the elastic member 180 is supported on the lower end 171b of the elevating member 170 and the lower end of the elastic member 180 is supported on the upper surface of the elastic member supporting step 166 formed inside the lower body 160.

Hereinafter, the operation of the angle valve 100-2 according to the second embodiment of the present invention will be described. FIG. 9 is a cross-sectional view showing the flow of the angle valve according to the second embodiment of the present invention, and FIG. 10 is a cross-sectional view illustrating the angle valve according to the second embodiment of the present invention. In Fig. 10, the dotted arrows indicate the air communication flow path, and the solid arrows indicate the remaining water outlet flow path.

9, when the angle valve 100-2 is opened, the valve shaft 130 is upwardly moved so that the opening and closing member 140 is in contact with the valve seat portion 171a of the elevation member 170 So that the opening / closing hole 172 is opened. In this case, the first through hole 135 formed in the valve shaft 130 is exposed to the atmosphere, but the second through hole 136 is formed in the airtightness member 122 provided inside the valve cover 120 The elevating member 170 is moved upward by the elastic force of the elastic member 180 to a position where the upper end of the elevating member 170 is engaged with the lower end of the elevating member engaging jaw 165, (160), thereby blocking the water discharge hole (164). In this case, the water discharge hole 164 is sealed by the outer surface of the cylindrical portion 171 of the elevation member 170 positioned between the upper and lower O-rings 173.

The water supplied through the inlet pipe 16 and the lower end connection pipe 111 flows through the opening and closing hole 172 and passes through the chamber 114 of the angle valve 100 and is discharged through the outlet 113 The water is supplied to the discharge pipe 17 side where the water meter 11 is installed. In this case, since the second through hole 136 and the water discharge hole 164 are blocked, leakage of the supply water is prevented.

10, when the valve 100 is closed and the valve shaft 130 is moved downward to close the valve seat portion 171a of the elevation member 170, The member 170 is pressed downward. In this case, the elastic member 180 is compressed and the lift member 170 moves downward. At this time, when the elevation member 170 is moved downward and the upper end of the elevation member 170 is positioned below the position where the discharge hole 164 is formed, the discharge hole 164 is connected to the chamber 114 and the discharge port 113 And the outlet pipe 17 connected to the outlet pipe 17.

At the same time, the first through hole 135 formed in the valve shaft 130 is exposed to the atmosphere, and the second through hole 135 is formed in the space portion 125 provided below the hermetic member 122 The space 125 communicates with the atmosphere through the first through hole 135, the hollow portion 137, and the second through hole 136, as shown by a dotted arrow, The space portion 125 and the chamber 114 are communicated through the communication groove 138 formed in the male screw portion 133 of the valve shaft 130 so that the interior of the chamber 114 becomes atmospheric pressure.

Therefore, in the singular state, the water discharge hole 164 and the chamber 114 are communicated with each other, and the chamber 114 and the discharge pipe 17 communicating therewith are also at atmospheric pressure. Therefore, in the water meter 11 and the discharge pipe 17 The remaining water can be smoothly discharged to the side of the water discharge hole 164 via the chamber 114 as shown by a solid line arrow.

According to the second embodiment of the present invention, it is possible to solve the problem that the negative pressure is applied to the inside of the tap water meter 11 and the discharge pipe 17 to prevent the remaining water from being discharged smoothly and stagnated in the prior art, It is possible to effectively prevent the freezing caused by the freezing.

In addition, since the second through hole 136 and the water discharge hole 164 are automatically opened and closed according to the opening and closing of the angle valve 100-2, water leakage is prevented in the water flow state, It is possible to omit a separate manual operation for improving the operability of the angle valve 100-2.

As described above, the present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the scope of the present invention as defined in the appended claims. And such modifications are within the scope of the present invention.

100-1, 100-2: Angle valve 110: Valve body
111: bottom connection 112: top connection
113: outlet 114: chamber
115: opening / closing ball 116: valve seat portion
120: valve cover 121: guide portion
122: sealing member 123: retaining ring
124: fixing nut 125:
130: valve shaft 131:
132: polygonal part 133: male thread part
135: first through hole 136: second through hole
137: hollow part 138: communicating groove
140: opening / closing member 141: fastener
142: packing 143: fastening member
150: handle 160: lower body
164: water discharge hole 165:
166: elastic member support jaw 167: insertion groove
168: snap ring 170:
171: Cylindrical portion 171a: valve seat portion
172: opening and closing ball 173: o-ring
180: elastic member

Claims (8)

An angle valve provided at an orthogonal connection portion between an inlet pipe and a discharge pipe for interrupting supply of water,
A valve having a horizontal discharge port 113 formed at one side between the lower end connection port 111 and the upper end connection port 112 opened in the up and down direction and having an opening and closing hole 115 communicating with the lower end connection port 111, A valve body 110 integrally formed with the seat portion 116;
A valve cover 120 that hermetically closes the upper end of the valve body 110 and is detachably coupled to the upper end connector 112;
And a valve shaft 130 disposed to be able to move up and down through the valve cover 120 and coupled to an opening and closing member 140 for opening and closing the opening and closing hole 115 at a lower end thereof,
The valve shaft 130 is provided with a first through hole 135 exposed in the atmosphere and a second through hole 135 spaced below the first through hole 135 and located inside the valve cover 120 A hollow portion 137 communicating with the first through hole 135 and the second through hole 136 and provided inside the valve shaft 130 is formed,
A space portion 125 provided between the inner surface of the valve cover 120 and the outer surface of the valve shaft 130 when the valve shaft 130 is moved upward to open the opening and closing hole 115, When the valve shaft 130 is moved downward and the opening and closing hole 115 is closed by the opening and closing member 140, the valve body 110 , And the chamber (114) provided in the interior of the chamber (125) communicates with the space (125) and the second through hole (136). The method according to claim 1,
The valve cover 120 is provided with a hermetic member 122 for guiding the upward and downward movement of the valve shaft 130 while keeping the hermetic state,
When the valve shaft 130 is moved upward to open the opening and closing hole 115, the second through hole 136 is closed by the hermetic member 122, and the valve shaft 130 is moved downward And the second through hole 136 is moved to the lower side of the hermetic member 122 to be located in the space 125 when the opening / closing hole 115 is closed. An angle valve provided at an orthogonal connection portion between an inlet pipe and a discharge pipe for interrupting supply of water,
A valve body 110 having a horizontal discharge port 113 formed at one side between the lower end connection port 111 and the upper end connection port 112 opened in the vertical direction;
A valve cover 120 detachably coupled to the upper end connecting portion 112 while sealing an upper end of the valve body 110;
A valve shaft 130 disposed to be able to move up and down through the valve cover 120 and having an opening / closing member 140 coupled to a lower end thereof;
A lower body 160 detachably coupled to the lower end coupling 111 of the valve body 110 and having a space for water to be introduced therein;
An opening and closing hole 172 which is vertically moved up and down in association with the lifting and lowering of the valve shaft 130 in the lower body 160 and is opened and closed by the opening and closing member 140, And an elevating member (170) elastically supported by the supporting member (180)
The valve shaft 130 is provided with a first through hole 135 exposed in the atmosphere and a second through hole 135 spaced below the first through hole 135 and located inside the valve cover 120 A hollow portion 137 communicating with the first through hole 135 and the second through hole 136 and provided inside the valve shaft 130 is formed,
The opening and closing member 140 may be connected to one side of the lower body 160 and connected to the second through hole 136 and the outlet 113 in a state in which the opening and closing hole 172 is closed, 164) is formed through the through-hole. The method of claim 3,
The valve cover 120 is provided with a hermetic member 122 for guiding upward and downward movement of the valve shaft 130 while keeping the hermetic state,
When the valve shaft 130 is moved upward to open the opening and closing hole 172, the second through hole 136 is closed by the hermetic member 122 and the valve shaft 130 is moved downward The second through hole 136 is moved to the lower side of the hermetic member 122 so that the inner surface of the valve cover 120 and the outer surface of the valve shaft 130 And a space portion (125) provided between the first and second chambers. The method of claim 3,
When the valve shaft 130 is moved upward and the opening / closing hole 172 is opened, the lifting member 170 is moved to a position where the water discharge hole 164 is closed by the elastic force of the elastic member 180 The upper end of the elevating member 170 is moved upward to the drain hole 164 when the elevating member 170 is moved downward while closing the opening and closing hole 172 in conjunction with the downward movement of the valve shaft 130, And the water discharge hole (164) is opened. The method according to claim 1 or 3,
The valve cover 120 or the valve shaft 130 is provided with a space 125 provided between the inner surface of the valve cover 120 and the outer surface of the valve shaft 130, And a communication groove (138) for communicating the chamber (114) provided in the interior of the chamber (114). The method according to claim 1 or 3,
A male screw portion 133 is formed on the outer circumference of the valve shaft 130 and is screwed to a female screw portion 120d formed on the inner circumference of the valve cover 120,
The valve body 120 has a male threaded portion 133 formed therein with a space 125 formed between the inner surface of the valve cover 120 and the outer surface of the valve stem 130, And a communication groove (138) for communicating the chamber (114) provided in the inside of the chamber (140). 8. The method of claim 7,
Wherein the communication groove (138) is formed in a plurality of longitudinally spaced apart circumferential regions on an outer circumference of the male screw portion (133).

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