JPH11190444A - Multi-way valve device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structurally simple/inexpensive multi-way valve device by interlocking switching operations of the valve elements of respective valve devices and changing a flowing state of one valve device while maintaining a flowing state of the other valve device with switching of these interlocked valve elements. SOLUTION: This drawing shows a device constituted so as to rotate multi- way valve devices by the same angle in the same rotational direction by synchronizing rotation of valve elements 21 and 22 of the respective multi-way valve devices through a differential gear constituted using, for example, a gear by juxtaposing the multi-way valve devices in parallel to each other. Gears 31 and 32 are respectively arranged in the upper part of the valve elements 21 and 22, and a gear 33 to support a rotary shaft is also arranged between the gears 31 to 32 so that the gears 31 to 33 are synchronously rotated. Therefore, the valve elements 21 and 22 are also synchronously rotated by synchronous rotation of the gears 31 to 33. Therefore, plural passage states can be changed only in one passage state while maintaining the other passage state in a single operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-way valve device such as a switching valve or a mixing valve.

[0002]

2. Description of the Related Art In a valve device provided in a piping system of a fluid such as water or air, a valve body such as a cylinder or a cone is rotatably arranged in a valve device main body, and a flow device provided on the valve device main body side. A state in which the passage and the flow path provided on the valve body side are made to coincide with each other so that the two flow paths are communicated with each other, and the valve body is rotated in the valve apparatus body and provided on the valve apparatus body side with the flow path provided on the valve body side. 2. Description of the Related Art A structure that switches between a state in which communication with both flow paths is cut off by not matching a flow path is widely adopted.

[0003] For example, a microfilm disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-16470 has a plurality of channels each having at least three flow paths and a rotating body that changes a rotational position to switch a flow state between the flow paths. A switching valve further provided with a rotating body operating mechanism for interlockingly changing the rotational position of the rotating body of these switching valve structures is disclosed.

FIG. 5 is a schematic structural view of a conventional six-way valve disclosed in a microfilm disclosed in Japanese Utility Model Laid-Open Publication No. Sho 62-16470. As shown in FIG.
And six six-way valve assemblies 210, 220.

The six-way valve components 210 and 220 are provided with six flow ports 212a to 212f and 222a to 222f at regular intervals along the circumferential direction of the main bodies 211 and 221 respectively. Rotors 213 and 223 that are rotatable within a range of 60 degrees around the central axis 200 as a support shaft are provided in the reference numeral 221.

In FIG. 5, for convenience of explanation, the hexagonal valve components 210 and 220 are shown side by side. However, in practice, the hexagonal valve components 210 and 220 are arranged in a vertical direction (perpendicular to the plane of the paper). The central axes 200 of the rotating bodies 213 and 223 are shared.

Each of the rotating bodies 213 and 223 has three flow passages 213a to 213c and 223a to 223c, respectively, and changes the rotation position by 60 degrees to switch the flow state between the flow ports. ing.

In the six-way valve 100, each rotating body 21
3 and 223, the central axis 6 is shared.
For example, if 00 is rotated by 60 degrees, the rotating bodies 213 and 22
3 rotates at the same time by 60 degrees, and the six-way valve structure 210, 2
20 are simultaneously switched.

[0009]

As described above, in the conventional multi-way valve device, a plurality of valve elements (rotating bodies) are linked to switch the flow path together, and the state of the other flow path is maintained. However, even if only one valve element is switched to change only one flow path state, the other valve element performs the same switching movement in conjunction with the movement of the one valve element. It was not possible to change only one channel state while maintaining the channel state.

When the design of a multi-way valve device is changed by changing the shape or the like of each valve body in order to solve such a problem, the structure becomes complicated and each component needs to be prepared for exclusive use. There was a drawback that the cost could be increased rather than achieved.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems. In a multi-way valve device for changing a plurality of flow path states by one operation, one flow path is maintained while maintaining the other flow path state. It is an object of the present invention to obtain an inexpensive multi-way valve device that can be changed only in the state and has a simple structure.

[0012]

SUMMARY OF THE INVENTION A multi-way valve device according to the present invention maintains the flow state of one valve device by interlocking the switching operation of the valve members of each valve device and by interlocking the switching of these valve members. The flow state of another valve device can be changed.

In addition, the switching operation of the valve bodies of the respective valve devices is linked, so that the flow state of one valve device can be changed while the flow state of the other valve device can be changed by the linked switching of these two valve members. It was done.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 First, the structure of the multi-way valve device according to Embodiment 1 will be described with reference to FIG. FIG. 1 is an exploded perspective view of a multi-way valve device according to Embodiment 1. In FIG. 1, as a new configuration with respect to the conventional example, reference numeral 1 denotes a substantially cylindrical multi-way valve device main body (hereinafter, referred to as “main body”). ), The main body 1 has a channel 1a on the side of the cylinder,
1c, a flow path 1b is provided on the bottom surface of the cylinder.

Here, the flow path 1a and the flow path 1c are arranged substantially in a straight line at positions opposing each other with the main body 1 interposed therebetween, and the flow path 1b is approximately 90 degrees with respect to the flow paths 1a and 1c. Is located in the position.

Reference numeral 2 denotes a substantially hollow cylindrical valve body whose upper surface is covered. The valve body 2 has flow passages 2a, 2c
Each of the flow paths 2b is disposed on the bottom of the cylinder.
a, 2b, and 2c communicate with each other at a hollow portion inside the valve body 2, and the flow paths 2a and 2c are disposed in a positional relationship of approximately 90 degrees. A projection 2d to which a gear to be described later is attached is provided on the upper surface side of the valve body 2.

The valve body 2 is fitted in a hollow cylindrical portion in the main body 1 and is rotatable in the main body 1. Here, the flow path 1a of the main body 1 and the flow path 2a of the valve body 2 coincide with each other in accordance with the rotation angle of the valve body 2 in the main body 1, and the flow path is opened. The flow path is opened when the flow path 2c of the valve body 2 coincides with the flow path 2c.

However, when the flow path 1a of the main body 1 and the flow path 2a of the valve element 2 coincide with each other and the flow path is opened, the flow path 1c of the main body 1 and the flow path 2c of the valve element 2 become one. There is no case where the flow path is opened, and the flow path 1c of the main body 1 and the flow path 2 of the valve body 2 are not opened.
When c is coincident and the flow path is opened, the flow path 1a of the main body 1 and the flow path 2a of the valve body 2 do not coincide and the flow path is not opened. That is, the two flow paths are not opened at the same time.

Next, an application example of the multi-way valve device configured as described above will be described. FIG. 2 shows the multi-way valve devices shown in FIG. 1 arranged in parallel, and the rotation of the valve bodies 21 and 22 of each multi-way valve device is synchronized via a differential device constituted by using, for example, gears, etc. Fig. 2 shows an arrangement configured to rotate by the same angle.

The gears 3 are provided above the valve bodies 21 and 22, respectively.
1 and 32 are provided, and a gear 33 supported by a rotating shaft (not shown) is provided between the gear 31 and the gear 32, so that the gears 31 to 33 rotate in synchronization. Therefore, the rotation of the valve bodies 21 and 22 is also synchronized by the synchronized rotation of the gears 31 to 33.

FIG. 3 is an operation explanatory view schematically showing an application example of the multi-way valve device shown in FIG. FIG.
During the rotation of the gear 33 in the R direction, the rotation of the gears 31 and 32 (not shown) causes the valve bodies 21 of each multi-way valve device to rotate.
Reference numerals 22 rotate in the r direction.

First, in each of the main bodies 11, 12,
The positions of the valve bodies 21 and 22 in the main bodies 11 and 12 in which the respective flow paths are switched so as to be opened on one side are determined, and the gears 31 to 3 are further determined.
The position of No. 3 is determined and this is set as an initial state.

Here, for example, the state shown in FIG.
That is, the state in which the flow path 11a and the flow path 11b are opened in the main body 11 and the state in which the flow path 12a and the flow path 12b are opened in the main body 12 is an initial state in which the rotation angle is 0 degree.

As shown in FIG. 3A, in the initial state where the rotation angle is 0 degrees, the flow path formed by each of the main bodies 11 and 12 is in the direction of the arrow flow path X on the main body 11 side. On the main body 12 side, the positions of the valve bodies 21 and 22 in the main bodies 11 and 12 are determined so as to be in the direction of the arrow flow path X.

Next, as shown in FIG.
Is rotated by 90 degrees in the R direction, the flow path on the main body 11 side becomes the Y direction in the drawing, but the main body 12 side holds the flow path X direction before rotation as a result.

Further, as shown in FIG.
3 further rotates in the R direction and rotates 180 degrees from the initial state (FIG. 3A), and the flow path on the main body 11 side holds the flow path in the Y direction at the time of the previous 90 degree rotation. Then, on the main body 12 side, the flow path is switched to the flow path in the Y direction.

Finally, as shown in FIG.
3 further rotates in the R direction, and in a state in which it rotates 270 degrees with respect to the initial state (FIG. 3A), the flow path on the main body 11 side is switched again in the X direction, and the valve device Y direction on the main body 12 side is changed. The flow path is in a state of holding the flow path Y at the time of the previous 180-degree rotation. Table 1 summarizes the flow path states according to the rotation of the rotating body described above.

[0028]

[Table 1]

As is clear from Table 1, the main bodies 11, 12
The switching control of the state of the flow path is realized based on the rotation of the gear 33 while covering all arbitrary combinations of the directions of the arrow flow paths X and Y.

The switching operation of the flow path state is as follows.
It is not always necessary to employ all of the above-described combinations, and for example, a combination of employing only FIGS. 3A to 3C may be employed.

Next, as an application method of the multi-way valve device described above, there is an application example described below. FIG. 4 is a piping diagram of a bath water circulation filtration device to which such a multi-way valve device is applied.

In FIG. 4, a new configuration according to FIG.
Is a three-way valve, 6 is a purification tank for filtering dirt and the like contained in the bath water 13 with a built-in purification material (not shown), 7 is a sterilizer, 8 is a heater, 9 is a pump, 10 is a bath in the bathtub 12. A suction port for sucking water 13 into the bath water circulation filtration device,
1 is an outlet.

In the bath water circulating and filtering apparatus thus constructed, the opening of the valve of the multi-way valve device is set to the state shown in FIG. 3A, and the bath water 13 flows through the three-way valve 5 through the normal operation path in FIG. When the pump 9 is driven in such a switching state, the bath water 13 in the bathtub 12 is sucked from the suction port 10 and the state shown in FIG.
In accordance with the normal operation route inside, it reaches the outlet 11 and the bathtub 12
Is reduced to

In this case, dirt and the like contained in the bath water 13 are filtered by the purifying material in the purifying tank 6, and the bath water 13 flowing through the normal operation path is heated by the heater 8, and as a result, the bath water 13 The filtration water of the bath water 13 is maintained.

Next, the opening degree of the valve of the multi-way valve device is shown in FIG.
In this state, the bath water 13 in the bath water circulation / filtration apparatus circulates in the bath water circulation / filtration apparatus according to the sterilization operation path in the main body in FIG.

The bath water 13, which has been flowing along the normal operation route, is heated by the heater 8 to a high temperature and circulates in the apparatus at a high temperature. During this circulation, heat sterilization in the route is performed.

Further, the opening degree of the valve of the multi-way valve device is shown in FIG.
4 and the three-way valve 5 is also switched so that the backwashing operation path in FIG. 4 is established, the bath water 13 sucked from the suction port 10 passes through the multiway valve device 4 in FIG. Circulate in the bath water circulating filter according to the inside backwashing operation route.

In this case, the direction of the flow of the bath water 13 into the purification tank 6 is reversed, and the dirt filtered by the purification material in the purification tank 6 passes through the three-way valve 5 together with the bath water 13. Released outside the system.

In the embodiment described above, the flow paths 2a,
Although the case where 2c is disposed at a position forming an angle of about 90 degrees has been described, the angle is not limited, and for example, the angle formed by the two is set to a position of about 120 degrees. The angle between the flow paths 2a and 2c may be changed accordingly.

Therefore, according to the first embodiment, in a multi-way valve device that changes a plurality of flow path states by one operation, it is possible to change only one flow path state while maintaining the other flow path state. It is possible to obtain an inexpensive multi-way valve device that is possible and has a simple structure.

[0041]

According to the present invention, a plurality of flow path states are set to one.
In a multi-way valve device that is changed by a degree of operation, it is possible to obtain a low-cost multi-way valve device in which only the state of one flow path can be changed while the state of the other flow path is maintained, and the structure is simple.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a multi-way valve device according to a first embodiment.

FIG. 2 is an explanatory diagram of an application example of the multi-way valve device according to the first embodiment.

FIG. 3 is an operation explanatory diagram of an application example of the multi-way valve device.

FIG. 4 is a piping diagram of a bath water circulation filtration device to which a multi-way valve device is applied.

FIG. 5 is a schematic configuration diagram of a conventional six-way valve.

[Explanation of symbols]

1 Multi-way valve device main body, 11, 12 Multi-way valve device main body, 1
a to 1c, 11a, 11b, 12a, 12b
2, 21, 22 Valve body, 2a to 2c Channel, 2d projection, 31 to 33 Gear 5 Three-way valve, 6 Purification tank, 7 Sterilizer, 8 Heater, 9 Pump, 10 Suction port, 11 Outlet, 12
Bathtub 13 Bath water.

Claims (2)

[Claims] A body having at least three flow paths;
A multi-way valve device including a plurality of valve devices provided in the main body and configured to switch a flow state between the at least three flow paths by changing a switching position; A multi-way valve device wherein the flow state of one valve device can be changed while the flow state of another valve device can be changed by the interlocking switching of these valve bodies in conjunction with the operation. A main body having three flow paths; and a flow path provided in the main body, wherein any two flow paths among the three flow paths are communicated by changing a switching position. In a multi-way valve device in which two valve devices each including a valve member for switching the flow state between the two valve devices are arranged in parallel, the switching operation of the valve members of each valve device is linked, and the two valve members are switched in an interlocked manner. A multi-way valve device characterized in that the flow condition of one valve device can be changed while the flow condition of the other valve device can be changed.