KR200235302Y1 - valve have a turnover of a course for cold-water and hot-water - Google Patents

Abstract

The present invention relates to a flow switching valve for cold and hot water for changing the flow direction of cold and hot water. The present invention is the first and second outlet ports provided on both sides of the valve body 10, the hot and cold water inlet port 20, the inlet port 20 is introduced into the valve body 10 and the inlet port 20 ( In the flow path switching valve (1) having a 30) (31) to control the path of cold and hot water, the valve body 10 is alternately blocked by 180 degrees angular movement, on both sides of the outlet port (30) (31) A motor 70 outside the valve body 10 to drive the switch ball 50 to discharge to the provided pipe 40, 41, and the ball shaft 61 integrally connected to the switch ball 50. And a micro switch (80) for switching the motor 70 in a forward direction and a reverse direction to primarily control the alternating blocking operation of the switching ball 50, and the rotation prevention provided on the edge side of the ball shaft 61. Interlocking operation by forming a step to interlock with the pin 62 and to set the rotational limit on the surface of the support plate 120 180 degrees 2 includes a stopper (130) for controlling to drive. Accordingly, the driving motor and the conversion ball rotated by its power rotate 180 degrees as a whole, and both outflow ports smoothly contact, detach, and interrupt, so that there is no fear of high load on the motor, so that the operation is smooth and the durability of the product is improved. In addition, the opening and closing operation of the valve is accurately performed, there is an effect that can reduce the cost with a reasonable structure and minimal components.

Description

Flow switching valve for cold and hot water {valve have a turnover of a course for cold-water and hot-water}

The present invention relates to a hot water flow path switching valve is installed in the boiler or hot water pipe to change the flow of cold and hot water, more specifically, the rotation angle of the switching ball by selectively opening and closing the outlet port to the ball shaft rotated 180 degrees by the drive motor It relates to a hot and cold water flow path switching valve to ensure that the opening and closing, switching operation of the valve is made sure.

In general, a motor-driven flow path switching valve for converting the fluid flowing from the inlet port between the first outlet port and the second outlet port is known from the Korean patent publication 93-4229.

Conventionally, the configuration of the flow path switching valve includes a drive motor and a switch mechanism, moves the change ball to the valve seat of one port by an eccentric body and a reciprocating mechanism or a gear group axially coupled to the drive motor, and drives the driving force of the motor. Or spring force to return to the valve seat of the other port.

However, the conventional switching valves have a complicated transmission mechanism for transmitting the driving force of the motor up to the rotation of the switching valve.

For example, an eccentric cam and a reciprocating mechanism or a gear train are interposed between the contact mechanism for opening and closing the power of the motor and the switching ball that actually blocks the outflow port. If the switch stops driving the motor when the changeover ball is not seated on the valve seat of the port, the port cannot be closed tightly.

In order to compensate for this problem, a spring device that excessively presses the switching ball is used. This method increases the number of parts and demands excessive output of the motor, thereby causing an uneconomic problem.

In addition, since the elastic force due to the spring is strongly applied, there is a problem that a large load is applied to the motor at the moment for changing directions from both outflow ports, resulting in a large number of devices and the motor as a whole.

On the other hand, as the conventional flow path switching valve is known in the domestic practical publication 01-47880, the conventional valve device is a way in which the switching ball rotates 360 degrees in one direction counterclockwise (CCW) in the valve body, blocking both outflow ports There is this.

However, there is a problem that the changeover ball is excessively contacted or insufficiently contacted with the valve seats of both outlet ports while rotating by the drive motor, resulting in wear of the changeover ball. In addition, the wear of the switching ball causes the leakage of the fluid, there is also a problem in that the difficulty of blocking the fluid to reduce the efficiency of the valve device.

The present invention has been made to solve the above problems, and provided with a switching ball rotated 180 degrees around the eccentric shaft in the valve body to provide a flow switching valve for hot and cold water that can accurately control the opening and closing position of the valve without error. The purpose is.

According to the present invention, the cold and hot water introduced into the valve body 10 and the inlet port 20, the first and second cold and hot water passing through the inlet port 20 provided on both sides of the valve body 10 and In the flow path switching valve (1) having a second outlet port (30) (31) to control the path of cold and hot water, the valve body (10) is alternately blocked by 180 degrees angular movement, the outlet port (30) ( 31) Outside the valve body 10 to drive the switch ball 50 to discharge to the pipe 40, 41 provided on both sides, and the ball shaft 61 integrally connected to the switch ball 50 The micro switch 80 and the edge of the ball shaft 61 are installed in the motor 70, and the motor 70 is switched in the forward direction and the reverse direction so that the alternating blocking operation of the switching ball 50 is primarily controlled. Interlocking with the anti-rotation pin 62 is installed on the side, to form a step to set the rotational limit 180 degrees on the surface of the support plate 120 Is achieved by a stopper 130 to control the alternate cut-off operation secondary.

In addition, the ball shaft 61, the connecting shaft 90 is fixedly inserted into the center of the switching ball 50 and extended downward, the connecting shaft 90 is integrally coupled, the anti-rotation pin 62 ) Preferably further includes an eccentric shaft 60 formed parallel to the edge-side predetermined position.

1 is an exploded perspective view of the flow path switching valve for cold and hot water according to the present invention,

2 is a cross-sectional view of the flow path switching valve for cold and hot water according to the present invention,

3a is an operation state diagram of the flow switch valve for cold and hot water and the operation state diagram of the micro switch according to the present invention,

3b is an operation state diagram of the flow switch valve for cold and hot water and the operation state diagram of the micro switch according to the present invention,

4 is another embodiment according to the present invention.

Explanation of symbols on main parts of drawing

One; Flow path switching valve 10; Valve body

20; Inlet port 30; 1st outlet port

31; Second outlet port 40; First pipe

41; Second pipe 42; 3rd pipe

50; Switching ball 60; Eccentric shaft

61; Ball axis 62; Anti-rotation pin

70; Motor 71; Motor shaft

80; Microswitch 90; Connecting shaft

100; Cam 110; Valve cover

120; Support plate 130; Stopper

140; Microcam 160; Gear train

Hereinafter, referring to the accompanying drawings, the flow path switching valve for cold and hot water according to the present invention will be described. 1 is an exploded perspective view of the flow path switching valve for cold and hot water according to the present invention, Figure 2 is a cross-sectional view of the flow path switching valve for cold and hot water according to the present invention, Figure 3a is an operational state diagram of the flow path switching valve for cold and hot water according to the present invention and the micro switch Figure 3b is an operating state diagram, Figure 3b is an operating state diagram of the flow path switching valve for cold and hot water according to the present invention, Figure 4 is another embodiment according to the present invention.

The present invention, as shown in Figure 1, the structure of the flow path switching valve 1 is formed with a valve body 10 having an inlet port 20 at the bottom, and an outlet port 30, 31 on both sides do. The valve body 10 is inserted into the inside of the switch ball 50 is 180 degrees angular movement is located at the top, the ball shaft 61 is formed on the top.

The ball shaft 61 is composed of a connecting shaft 90 is embedded in the switch ball 50 to extend vertically, and the eccentric shaft 60 to be integrally coupled to the connecting shaft 90. In addition, the anti-rotation pin 62 is formed on the side of the eccentric shaft (60).

In addition, the support plate 120 is sequentially formed on the ball shaft 61. The support plate 120 is a circular stop bar 130 is formed at the edge where the eccentric shaft 60, which is a component of the ball shaft 61 is located. The circular stopper 130 is configured on both sides differently, a total of 0 degrees to 180 degrees step is formed, the remaining 180 degrees to 360 degrees has a shape without a step.

The stopper 130 serves to limit the operation of the anti-rotation pin 62, which is a component of the ball shaft 61, in a portion where a step of 0 to 180 degrees is formed.

The cam 100 is sequentially formed on the support plate 120. Here, the cam 100 is integrally coupled with the ball shaft 60. The cam 100 is composed of a material having excellent heat insulation and rigidity, and may be made of glass fiber or reinforced nylon resin.

A motor 70 is positioned above the cam 100, and the cam 100 is inserted into the shaft 71 of the motor 100. In addition, the valve cover 110 is formed outside the motor 70 to protect the motor 70.

Here, the motor 70 is not specially manufactured, but a general synchronous motor or the like that is commercially available is used.

In addition, a micro switch 80 device is attached between the cam 100 and the motor shaft 71. The micro switch 80 is attached to the support plate 120, and used to adjust the angle of the ball shaft 50.

As shown in FIG. 2, when the flow path switching valve 1 is integrally coupled, an inflow port 20 is formed below the valve body 10 and integrally formed with the inflow port 20. The third pipe 42 bonded to the bottom is formed at the bottom thereof. The third pipe 42 is used as a passage for introducing a predetermined amount of cold water or hot water.

In addition, first and second outlet ports 30 and 31 are formed at both side surfaces of the valve body 10. The first pipe 40 is coupled to the first outlet port 30, and the second pipe 41 is connected to the second outlet pipe 31. The first and second outlet ports 30 and 31 serve to discharge cold water or hot water. The first and second outlet ports 30 and 31 transfer fluid to the target point by the first and second outlet pipes 40 and 41, respectively. do.

The fluid transfer is a switch ball 50 is located in the center of the first and second outlet port 30, 31, the switching ball 50 blocks the first outlet port 30, or the second outlet It serves to block the port 31. Alternating blocking of the first and second outlet ports 30 and 31 enables the discharge of the fluid to a target point when selecting hot water or cold water.

A ball shaft 61 is formed at an upper portion of the switching ball 50. The ball shaft 61 allows the connecting shaft 90 to be inserted into the center of the switching ball 50, and the connecting shaft 90 has an eccentricity at the bottom. It is integrally joined so as to be rotatable on the shaft 60. In addition, in the bonding of the eccentric shaft 60 and the connecting shaft 90, by placing the connecting shaft 90 on the edge of the eccentric shaft 60, the conversion ball 50 is rotated.

In addition, the eccentric shaft 60 of the ball shaft 61 forms a rotation preventing pin 62 on the side, the rotation preventing pin 62 is 180 degrees in conjunction with the stopper 130 formed on the support plate 120 Drive at an angle.

The cam 100 is positioned above the eccentric shaft 60, and the motor 70 is formed above the cam 100. Therefore, the final drive of the switching ball 50 is performed by the motor 70.

In addition, the operation of the motor 70 is possible by the control of the micro switch 80 in contact with the cam 100, the overall operation of the switching ball 50 by the control of the micro switch 80 is shown in Figure 3a and FIG. Shown in 3b. The control of the micro switch 80 is possible by the cam (100).

As shown in FIG. 3A, a cam having a constant radius of rotation between a pair of microswitches 80 that limits the operating range at an angle of 180 degrees when first powered by A and C by a user requiring a certain function. 100 is installed, the cam 100 receives the power of the motor 70 is connected to the ground C. When the cam 100 is in contact with the upper side of the micro switch 80 located at an angle of 180 degrees, the motor 70 that is constantly rotating in the forward direction is stopped.

At this time, the motor 70 rotates the ball shaft 61 receiving the power in the forward direction, and the connecting shaft 90 linked to the edge of the eccentric shaft 60, which is a component of the ball shaft 61, the switching ball ( 50) is rotated. The rotated switching ball 50 blocks the second outlet port 31, which is possible by the cam 100 is in contact with the micro switch 80.

Then, the cold or hot water entering the inlet port 20 is blocked by the second outlet port 31 of the switching ball 50 through the first outlet port 30 to the first pipe 40.

On the contrary, as shown in FIG. 3B, a cam having a constant radius of rotation between the microswitches 80 that limits the operating range at an angle of 180 degrees when the power source is supplied to B and C by a user who requires a certain function. 100 is installed, the cam 100 receives the power of the motor 70 is connected to the ground C. When the cam 100 comes into contact with the lower side of the microswitch 80 positioned at an angle of 180 degrees, the motor 70 which is constantly rotating in the reverse direction is stopped.

At this time, the motor 70 rotates the ball shaft 61 receives the power in the reverse direction, and the connecting shaft 90 linked to the edge of the eccentric shaft, which is a component of the ball shaft 61, rotates the switching ball. The rotated conversion ball 50 blocks the first outlet port 31, which is possible by the cam 100 being in contact with the micro switch 80.

In addition, cold water or hot water entering the inflow port 20 by blocking the first outlet port 31 of the switching ball 50 is discharged to the second pipe 40 through the second outlet port 30.

Another embodiment of the micro switch 80, as shown in Figure 4, forms a pinion gear-type motor shaft 71, when the pinion gear-type motor shaft 71 is driven in the forward direction, the The motor shaft 71 meshes with the gear train 160 arranged at the edge of the microcam 140 to drive the microcam 140. The microcam 140 is driven by the forward operation of the motor 70, the microcam 140 is stopped in contact with the micro switch 80.

In addition, when the motor 70 is driven in the reverse direction, when the pinion gear-type motor shaft 71 is driven in the reverse direction, the reverse drive of the motor shaft 71 is a gear train located at the edge of the microcam 140 ( 160). Accordingly, the microcam 140 is in contact with the microswitch 80 installed at another position, and the microcam 140 is in contact with the microswitch 80 and the operation stops.

In addition, a rod may be installed to protect the pair of microswitches 80 so that there is no direct contact with the microcam 140.

Here, the micro switch 80 to adjust the angle reduces the gear train 160 of the micro cam 140, and by reducing the angle of the micro cam 140 in contact with the pair of micro switches 80, 180 Angle adjustment of the following degrees is possible. Such adjustment of the rotation angle can be variously adjusted to 30 degrees, 45 degrees, 90 degrees, 120 degrees and the like.

This is made possible by adjusting the arrangement angles of the microcam 140 and the microswitch 80 according to the positions of the outlet ports 30 and 31 of the valve body 10. In addition, by reducing the positioning angle that the microcam 140 is in contact between the pair of micro-switch 80, it is possible to prevent wear of the valve body 10, and to reduce the operating time to quickly It can bring a reaction, and the parts are simple and economically advantageous.

The present invention rotates the driving motor and its turning ball by 180 degrees as a whole, and both outflow ports are smoothly contacted, separated, and interrupted, so there is no fear of high load on the motor, so the operation is smooth and the durability of the product is improved. In addition, the opening and closing operation of the valve is performed accurately, to prevent the leakage of fluid when switching the flow path to promote energy saving, there is an effect that can reduce the cost with a reasonable structure and minimal components.

Claims (2)

First and second outflow ports 30 provided on both sides of the valve body 10 for the cold and hot water flowing through the inlet port 20 and the inlet port 20 into which the cold and hot water flows into the valve body 10 ( In the flow path switching valve (1) having a 31) to control the path of cold and hot water, Alternately blocking the valve body 10 by 180 degrees angular movement, the switching ball 50 to discharge to the pipe 40, 41 provided on both sides of the outlet port 30, 31, and the switching In order to drive the ball shaft 61 integrally connected with the ball 50, a motor 70 is installed outside the valve body 10, and the motor 70 is switched in a forward direction and a reverse direction so that A micro switch 80 for controlling the alternate blocking operation primarily; Interlocked with the anti-rotation pin 62 provided on the edge side of the ball shaft 61, to form a step to set the rotation limit 180 degrees on the surface of the support plate 120, to control the alternating blocking operation secondary Cold and hot water flow path switching valve comprising a stopper (130). The method of claim 1; The ball shaft 60, A connecting shaft 90 fixedly inserted into the center of the switching ball 50 and extending downward; The connecting shaft (90) is integrally coupled, and the rotation preventing pin (62) further comprises an eccentric shaft (60) formed in parallel with a predetermined position on the edge side of the cold hot water flow path switching valve.