KR200250690Y1 - Convert valve passage - Google Patents

Abstract

The present invention relates to a three-way flow path switching valve configured to switch the flow of fluid introduced into the valve body in accordance with the rotation of the switching ball is formed in the three-way communication hole therein.

According to a feature of the present invention, there is provided a valve body having an upper opening switching chamber having an inlet port and a plurality of outlet ports communicating with each other therein; A drive motor disposed above the valve body; The motor shaft and the drive shaft of the drive motor are coupled in a straight line so as to be rotatably disposed in the switching chamber of the valve body, there is formed a three-way communication hole communicating in three directions inside the flow chamber into the switching chamber of the valve body A switching ball for allowing the fluid to be selectively discharged through the discharge port through the three-way communication hole; An elastic packing fixedly coupled to the switching chamber of the valve body to maintain the airtightness between the discharge port of the valve body and the switching ball; An airtight support that is coupled to seal the switching chamber of the valve body to support the switching ball and the drive shaft rotated with the elastic packing; An installation plate fixedly coupled to an upper surface of the valve body such that the drive shaft coupled to the drive motor and the motor shaft is supported, and a drainage protrusion formed on a bottom thereof; It is provided between the installation plate and the drive motor, there is provided a three-way flow path switching valve comprising a contact switch means for controlling the rotation direction of the power source and the drive shaft of the drive motor.

Description

Three Way Flow Switch Valve {CONVERT VALVE PASSAGE}

The present invention relates to a three-way flow path switching valve that is installed on a hot water pipe such as a boiler to change the flow direction of heating or hot water supply, and more specifically, it is possible to selectively open and close the discharge port while the conversion ball is interlocked with the driving motor. It relates to a three-way flow path switching valve by a new structure and operation configured to be able to.

In general, a three-way flow path switching valve of a motor driving method known in the art is an eccentric shaft that is interlocked with the driving shaft 11a when the driving shaft 11a of the motor 11 is rotated according to a switch signal as shown in FIG. 1. Switching ball 13 of 12 is rotated about the drive shaft (11a) of the motor 11 while selectively closing the discharge port (14, 15) of the valve body 16 inlet port of the valve body 16 It was configured to control the flow direction of the hot water or hot water flow into the discharge port (14) and then discharged to the discharge port (14) (15).

However, the conventional three-way flow path switching valve 10 is rotated while the switching ball 13 of the eccentric shaft 12 which is interlocked with the drive shaft (11a) of the motor 11 in a circular arc to discharge port 14 Close the inlet of the (15) by the contact force of the switching ball 13 holding the discharge port 14, 15 is concentrated on the eccentric shaft 12, the torsion and bending stress is generated so that the eccentric shaft 12 is Twisting and bending at the same time, the sealing force that closed the inlet of the discharge port 14, 15 is reduced, and eventually the valve to the discharge port 14 (15) was blocked by the switching ball 13 after a long time There was a problem that the body (16) water leaks.

In addition, the water leakage prevention ring 18 of rubber material inserted in the eccentric shaft 12 to block the water leakage from the valve body 16 to the motor housing 19, the eccentric shaft for rotating the switch ball 13 The frictional heat causes the leakage preventing ring 18 and the eccentric shaft 12 to be worn by the frictional heat, and the water leaks into the motor housing 19 through the worn gap, which eventually causes the water to leak. And while the motor 11 is malfunctioning, there is a problem in that the function as a three-way flow path switching valve 10 is lost.

The present invention has been proposed in view of the above problems, the object of which is that the switching ball coupled to be interlocked by the motor shaft and the drive shaft of the drive motor is arranged to rotate in the switching chamber of the valve body is formed inside the switch ball. It is to provide a three-way flow path switching valve configured to switch the flow of the fluid by selectively communicating the inlet port and the plurality of outlet port of the valve body by the three-way communication hole.

According to a feature of the present invention for achieving the above object, a valve body having an upper opening switching chamber having an inlet port and a plurality of outlet ports communicated with each other therein; A drive motor disposed above the valve body; The motor shaft and the drive shaft of the drive motor are coupled in a straight line so as to be rotatably disposed in the switching chamber of the valve body, there is formed a three-way communication hole communicating in three directions inside the flow chamber into the switching chamber of the valve body A switching ball for allowing the fluid to be selectively discharged through the discharge port through the three-way communication hole; An elastic packing fixedly coupled to the switching chamber of the valve body to maintain the airtightness between the discharge port of the valve body and the switching ball; An airtight support that is coupled to seal the switching chamber of the valve body to support the switching ball and the drive shaft rotated with the elastic packing; An installation plate fixedly coupled to an upper surface of the valve body such that the drive shaft coupled to the drive motor and the motor shaft is supported, and a drainage protrusion formed on a bottom thereof; It is provided between the installation plate and the drive motor, there is provided a three-way flow path switching valve comprising a contact switch means for controlling the rotation direction of the power source and the drive shaft of the drive motor.

1 is a side cross-sectional view showing a conventional three-way flow path switching valve.

Figure 2 is an exploded perspective view showing a three-way flow path switching valve according to an embodiment of the present invention.

Figure 3 is an exploded perspective view showing the three-way flow path switching valve of the present invention from another direction.

Figure 4a and 4b is a side cross-sectional view showing the operating state of the three-way flow path switching valve of the present invention.

Figure 5a and Figure 5b is a cross-sectional view showing the operating state of the three-way flow path switching valve of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: three-way flow path switching valve

110: valve body 111: inlet port 112: discharge port

113: discharge port 114: switching chamber 120: drive motor

121: motor shaft 130: drive shaft 131: fitting coupling

132: fitting hole 133: rubber ring 134: ring insertion hole

135: coupling hole 140: switching ball 141: three-way communication hole

141a: transverse communication hole 141b: longitudinal communication hole 141c: vertical communication hole

142: coupling hole 150: elastic packing 151: close contact

152: elastic portion 160: airtight support 161: airtight plate

162: sealing ring 163: ring fitting hole 164: rotary fitting hole

165: packing support 170: mounting plate 171: plate

172: insertion hole 173: screw 174: screw hole

175: coupling protrusion 176: coupling protrusion 177: drainage protrusion

180: contact switch means 181: switch substrate 181a: substrate

181b: fitting hole 181c: motor contact portion 181d: switch contact portion

181e: elastic switch 182: switch round plate 182a: disc

182b: release hole 182c: coupling hole 182d: coupling protrusion

190: motor case housing

Hereinafter, a three-way flow path switching valve of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view showing a three-way flow path switching valve according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing the three-way flow path switching valve of the present invention from another direction.

As shown, the three-way flow path switching valve 100 according to the embodiment of the present invention has an upper opening switching chamber 114 having an inlet port 111 and a plurality of outlet ports 112 and 113 communicating with each other therein. The valve body 110, the drive motor 120 is disposed on the upper side of the valve body 110, the motor shaft 121 and the drive shaft 130 of the drive motor 120 in a straight line The three-way communication hole 141 is coupled to be interlocked to be rotated in the switching chamber 114 of the valve body 110 and communicated to be orthogonal in three directions, so that the switching chamber 114 of the valve body 110 is formed. And the switching ball 140 and the discharge port 112 of the valve body 110 to selectively discharge the fluid introduced into the through the three-way communication hole 141 through the discharge port 112, 113 In order to maintain the airtight between the 113 and the switching ball 140 is fixedly coupled to the switching chamber 114 of the valve body 110 Sealing support 160 is coupled to seal the sealing packing 150 and the switching chamber 114 of the valve body 110 to support the conversion ball 140 and the drive shaft 130 is rotated with the elastic packing 150 ) And an installation plate 170 fixedly coupled to an upper surface of the valve body 110 so that the driving shaft 130 coupled to the driving motor 120 and the motor shaft 121 is supported and a drainage protrusion 177 is formed on the bottom surface thereof. And, it is installed between the installation plate 170 and the drive motor 120 and consists of a contact switch means 180 for controlling the rotation direction of the power source and the drive shaft 130 of the drive motor 120.

The contact switch means 180 is formed with a fitting hole 181b in which the drive shaft 130 is rotatably inserted in the central portion of the substrate 181a fixedly coupled to the installation plate 170, and the substrate 181a. The motor contact portion 181c and the switch contact portion 181d are formed at the upper edge of the upper surface of the motor contact portion 181c or the switch contact portion 181d. The motor contact portion 181c and the switch contact portion 181d are provided. The end of the elastic switch 181e is inserted into the bottom surface of the switch substrate 181 to which the elastic switch 181e selectively disconnected, and the disk 182a fixedly coupled to the drive shaft 130, and the motor contact point. It is composed of a switch circular plate 182 is formed with a release hole (182b) to terminate the connection between the portion (181c) and the switch contact portion (181d).

The installation plate 170 has an insertion hole 172 in which the drive shaft 130 is rotatably inserted in the central portion of the plate portion 171 coupled to the upper portion of the valve body 110 is formed, the plate portion A plurality of drainage protrusions 177 are radially protrudingly formed on the bottom periphery of the bottom portion 171, and the mounting plate 170 is fixedly coupled to the valve body 110 by screws 173 at the edge of the plate portion 171. A screw hole 174 is formed to be formed, and a coupling protrusion 175 is formed to protrude from the upper edge of the plate portion 171, and the switch substrate 181 is formed at an upper edge thereof. The engaging projection 176 is fitted is formed.

The elastic packing 150 is composed of a hard contact portion 151 in close contact with the switching ball 140 and an elastic portion 152 having an elastic force in close contact with the switch chamber 114 of the valve body 110, the close contact Teflon or resin is used for the part 151, and the elastic part 152 preferably uses rubber.

The three-way communication hole 141 of the switching ball 140 is formed in the longitudinal direction so as to cross the horizontal communication hole 141a formed in the horizontal direction and horizontally perpendicular to the horizontal communication hole 141a. It consists of a communication hole (141b) and a vertical communication hole (141c) formed in a vertical direction so as to be perpendicular to the transverse communication hole (141a) vertically, the upper surface of the switching ball 140 of the drive shaft 130 The lower end is fitted with a coupling hole 142 is fixedly coupled.

The drive shaft 130 has a fitting coupling portion 131 which is inserted into the coupling hole 142 of the conversion ball 140 and fixedly coupled to the lower end, and the motor shaft 121 of the driving motor 120 is formed at the upper end thereof. A fitting coupling hole 132 is inserted and fixedly coupled, and a ring insertion hole 134 into which the rubber ring 133 is inserted is formed at an outer circumference thereof, and a coupling hole 135 is formed at an upper edge of the switch circle. In the central portion of the plate 182 is formed a coupling hole (182c) is inserted and fixed to the upper end of the drive shaft 130 and a coupling protrusion (182d) is inserted into the coupling hole 135 of the drive shaft 130 is formed.

The sealing support 160 is formed with a ring fitting hole 163 into which the sealing ring 162 is fitted at the outer circumference of the sealing plate 161 which is fixedly coupled to seal the upper portion of the switching chamber 114 of the valve body 110. And, the center portion of the sealing ring 162 is formed so that the rotation fitting hole 164 through which the drive shaft 130 is rotatably inserted, and wrapped around the conversion ball 140 on the bottom surface of the sealing plate 161. At the same time, the packing supporting part 165 supporting the elastic packing 150 embedded in the switching chamber 114 of the valve body 110 is formed.

The drive motor 120 is embedded in the motor case housing 190 coupled to the upper surface of the installation plate 170, it is preferable to use a geared motor to reduce the driving force of the motor shaft 121 itself.

In addition, the drive motor 120 does not need a separate direction switching device for switching the rotation direction of the motor shaft 121, the drive motor 120 is also rotated in one direction or both directions, the rotation direction of the motor shaft 121 is Both can be used.

The operation of the three-way flow path switching valve 100 of the present invention configured as described above is as follows.

As shown in FIGS. 4A and 5A, the longitudinal communication hole 141b of the switching ball 140 coincides with one side discharge port 112, and the one side transverse communication hole 141a of the switching ball 140 is introduced. When the power is applied to the drive motor 120 while the motor contact part 181c and the switch contact part 181d are connected to each other by the port 111 and the elastic switch 181e, the drive motor 120 The motor shaft 121 is rotated and this rotational force is to rotate the switching ball 140 coupled to be interlocked by the drive shaft 130.

The end of the elastic switch 181e, which is connected to the motor contact portion 181c and the switch contact portion 181d by being pressed by the switch circular plate 182 which rotates together with the drive shaft 130 while the operation is in progress, is rotated. When the motor contact portion 181c and the switch contact portion 181d are separated from each other while being inserted into the termination hole 182b of the circular plate 182, the power applied to the driving motor 120 is cut off and the motor shaft 121 is disconnected. ) Rotates 180 ° and stops, and the other elastic switch 181e installed on the switch substrate 181 opposite to the one elastic switch 181e is pressed by the switch circular plate 182 while the other motor contact portion ( 181c and the switch contact portion 181d are connected to each other so that power can be applied to the driving motor 120.

At this time, the switching ball 140 coupled to interlock with the motor shaft 121 of the drive motor 120 by the drive shaft 130 is stopped after 180 ° rotation with the motor shaft 121 of the valve body 110 The longitudinal communication hole 141b of the switching ball 140, which was matched to one side discharge port 112, is coincided with the other discharge port 113 as shown in FIGS. 4B and 5B, and the other side of the switching ball 140 Directional communication hole (141a) is matched with the inlet port 111 of the valve body 110 through the inlet port 111 of the valve body 110 flows into the switching chamber 114 is discharged to one side discharge port 112 The flow of the fluid is discharged to the other discharge port 113 of the valve body 110 is switched the flow of the flow path.

As described above, the three-way communication of the switch ball is coupled to the motor shaft and the drive shaft of the drive motor in a straight line so as to be rotated in the switching chamber of the valve body while being rotated by the motor shaft of the drive motor. One inlet port and a plurality of outlet ports, which are formed to communicate with the switching chamber of the valve body by holes, selectively communicate with each other so that the fluid introduced into the switching chamber through the inlet port of the valve body is selectively discharged through the discharge port. The three-way flow path switching valve of the present invention configured to switch the flow of

Since the changeover ball is coupled in a straight line with the motor shaft of the drive motor by the drive shaft and is arranged to rotate in the resilient chamber of the valve body, there is no concern about the eccentricity of the changeover ball. As a result, the durability is increased.

In addition, the elastic packing that is embedded in the switching chamber of the valve body while wrapping the conversion ball is composed of an elastic portion having a high frictional resistance and at the same time a hard contact with a smooth surface and an elastic portion capable of effectively absorbing the impact. The fluid is prevented from leaking between the ball and the switching chamber of the valve body, and at the same time, the fluid is rapidly switched, thereby effectively removing and preventing shock or water hammer, which may be generated by hydraulic pressure.

In addition, the bottom surface of the installation plate is coupled to the upper end of the valve body so that the drive motor and the contact switch means can be installed, so that the drainage protrusion is formed in the case of the outer periphery of the closed support sealed by the rubber ring Even if the fluid leaks between the inner wall of the switching chamber of the valve body or between the outer periphery of the drive shaft and the inner periphery of the rotary fitting hole of the closed support, the leaked fluid is discharged to the outside through the drainage protrusion, so that the drive motor or the contact switch means located at the top of the mounting plate As the fluid cannot flow in, it is possible to prevent the malfunction and failure of the three-way flow path switching valve due to the breakdown of the power supply due to the fluid leakage.

In addition, the rotation angle of the drive shaft of the drive motor coupled to the switching ball by the drive shaft according to the position and the number of the motor contact portion and the switch contact portion formed on the switch substrate of the contact switch means can be arbitrarily adjusted. By arbitrarily forming the outlet port angle, there is an effect of switching the flow of fluid in various directions.

Claims (7)

A valve body (110) having an upper opening switch chamber (114) having an inlet port (111) and a plurality of outlet ports (112, 113) communicating therein with each other; A drive motor 120 disposed above the valve body 110; The motor shaft 121 and the drive shaft 130 of the drive motor 120 are coupled so as to be interlocked in a straight line and are arranged to rotate in the switching chamber 114 of the valve body 110, and communicate in three directions therein. The three-way communication hole 141 is formed so that the fluid introduced into the switching chamber 114 of the valve body 110 may be selectively discharged through the discharge ports 112 and 113 through the three-way communication hole 141. Switching ball 140 to be able to; An elastic packing 150 fixedly coupled to the switching chamber 114 of the valve body 110 to maintain airtightness between the discharge ports 112 and 113 of the valve body 110 and the switching ball 140; An airtight support 160 coupled to seal the switching chamber 114 of the valve body 110 to support the switching ball 140 and the drive shaft 130 rotating with the elastic packing 150; An installation plate 170 fixedly coupled to an upper surface of the valve body 110 so that the driving shaft 130 coupled to the driving motor 120 and the motor shaft 121 is supported, and a drainage protrusion 177 formed thereon; It is installed between the installation plate 170 and the drive motor 120, characterized in that consisting of the contact switch means 180 for controlling the rotation direction of the power supply and the drive shaft 130 of the drive motor 120 Directional flow divert valve. According to claim 1, The contact switch means 180 has a fitting hole (181b) is formed to be rotatably inserted into the drive shaft 130 in the central portion of the substrate 181a is fixedly coupled to the installation plate 170 The motor contact portion 181c and the switch contact portion 181d are formed at the upper edge of the upper surface of the substrate 181a, and the motor contact portion 181c is formed at the motor contact portion 181c or the switch contact portion 181d. A switch substrate 181 to which an elastic switch 181e selectively disconnects the switch contact portion 181d; A release hole for disengaging the connection between the motor contact portion 181c and the switch contact portion 181d while inserting an end portion of the elastic switch 181e into the bottom surface of the disc 182a fixedly coupled to the drive shaft 130. Three-way flow path switching valve, characterized in that consisting of a switch circular plate (182) is formed. According to claim 1, The installation plate 170 has an insertion hole 172 is rotatably inserted into the drive shaft 130 in the central portion of the plate portion 171 coupled to the upper portion of the valve body 110 A plurality of drainage protrusions 177 are formed to protrude radially on the bottom periphery of the bottom portion of the plate portion 171, and an installation plate 170 is formed on the edge of the plate portion 171 by screws 173. A screw hole 174 is formed to be fixedly coupled to the 110, and an engaging protrusion 175 is formed to protrude from the upper surface edge of the plate portion 171 to protrude, and the upper periphery of the upper surface is formed. Three-way flow path switching valve characterized in that the switch formed with a coupling protrusion 176 is inserted into the substrate 181. According to claim 1, The elastic packing 150 is an elastic portion 152 having an elastic force that is in close contact with the rigid contact portion 151 and the switching chamber 114 of the valve body 110 in close contact with the switch ball 140. Three-way flow path switching valve, characterized in that consisting of. The method of claim 1, wherein the three-way communication hole 141 of the switching ball 140 is horizontally orthogonal to the horizontal communication hole (141a) and the horizontal communication hole (141a) formed to penetrate in the horizontal direction. It consists of a longitudinal communication hole 141b formed in the longitudinal direction and a vertical communication hole 141c formed in a vertical direction to be orthogonal to the transverse communication hole 141a, the upper surface of the switching ball 140 The three-way flow path switching valve, characterized in that the lower end of the drive shaft 130 is inserted and fixed to the coupling hole 142 is formed. According to claim 1, The drive shaft 130 is formed in the lower end of the fitting coupling portion 131 is fixed to the coupling hole 142 of the conversion ball 140 is formed, the upper end of the drive motor 120 A fitting hole 132 to which the motor shaft 121 is fitted and fixed is formed. A ring inserting hole 134 is formed at an outer periphery of the rubber ring 133, and a coupling hole 135 is formed at an upper edge thereof. It is formed, the upper end of the drive shaft 130 is fitted into the center portion of the switch circular plate 182 is fixed to the coupling hole (182c) and the coupling projection 182d inserted into the coupling hole 135 of the drive shaft 130 Three-way flow path switching valve, characterized in that formed. The ring fitting of claim 1, wherein the sealing support 160 is fitted with a sealing ring 162 fitted to an outer circumference of the sealing plate 161 which is fixedly coupled to seal the upper portion of the switching chamber 114 of the valve body 110. A hole 163 is formed, and a rotation fitting hole 164 through which the driving shaft 130 is rotatably inserted is formed in a central portion of the sealing ring 162, and a switch is formed on the bottom surface of the sealing plate 161. Three-way flow path switching valve characterized in that the packing 140 is formed to support the elastic packing 150 built in the switching chamber 114 of the valve body 110 while wrapping the ball (140).