JP2001108120A - Fluid change-over valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid change-over valve capable of making a fluid flow out from one inflow line to one or both of two outflow lines or stopping the outflow, and allowing rapid and easy change-over operation. SOLUTION: In this valve, an inflow pipe 11 is screwed in one end 401 of a cylinder part 41 of a cylindrical valve casing 40, while a cap nut 42 rotatably fitted on a rotary shaft 62 of a handle 61 of a handle change-over device 60 is screwed on the other end 402. An outflow opening 412 communicating with an outflow pipe 31 forming an outflow line 30 and another outflow opening communicating with another outflow pipe are bored halfway along the cylinder part 41. A cylinder part 51 of a cylindrical valve element 50 is slidably fitted in the cylinder part 41. In the cylindrical valve element 50, one end 501 of the cylinder part 51 communicates with an inflow line 10, the other end 502 is closed and connected to the rotary shaft 62 of the handle 61, and an outflow opening 512 communicating with the outflow opening 412 of the cylinder part 41 of the cylindrical valve casing 40 and another outflow opening communicating with the other outflow opening are bored halfway along the cylinder part 51.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switching valve for switching a fluid such as water or gas.

[0002]

2. Description of the Related Art A conventional example will be described with respect to a fluid switching valve attached to a pipeline of a fluid such as tap water. As shown in FIG. 8, a fluid switching valve using a set of a cylindrical valve box 1 and a set of a cylindrical valve body 2 with a handle 6 fitted and slidable is provided. Switching from flowing in from one inflow conduit 3 and flowing out to two outflow conduits 4 and 5, and switching from inflow from one inflow conduit 3 to neither of the two outflow conduits 4 and 5. A switching system is employed. If it is desired to switch the flow from the inflow line 3 to the outflow line 4 and not to the outflow line 5, or to flow out of the inflow line 3 to the outflow line 5 and to the outflow line 4 When it is desired to switch so as not to flow out, water shutoff valves are attached to the outflow pipes 4 and 5, respectively. Therefore, the switching operation is troublesome, and there are still problems such as extra installation work of the water shutoff valve and installation space required. The inventor of the present invention has proposed switching between one outflow line and two outflow lines or two outflow lines with one handle operation, or two inflow lines from one inflow line. Switching between closing the outflow to one of the outflow lines or closing the outflow to both outflow lines can be performed by one set of cylindrical valve body and one set of cylindrical valve bodies. And completed the present invention.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a set of cylindrical valve housings and a set of cylindrical valve bodies are connected to a single inflow line by two cylinders.
An object of the present invention is to provide a fluid switching valve capable of flowing to one or both of two outflow lines or stopping the outflow. Another object of the present invention is to provide a fluid switching valve in which anyone can quickly and easily perform a switching operation with one touch.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention can be implemented with a set of a cylindrical valve body 40 and a set of a cylindrical valve body 50 as shown in the drawing. In the fluid switching valve described above, the cylindrical valve body 40 has an inflow pipe 11 forming an inflow pipe 10 at one end 401 of a cylindrical portion 41.
And a cap nut 42 rotatably fitted with a rotating shaft 62 of a handle 61 of a handle switching device 60 is screwed into the other end 402, and the outflow pipe 21 which forms the outflow pipe 20 in the middle of the cylindrical portion 41. An outflow port 411 communicating with the outflow pipe 31 and an outflow port 412 communicating with the outflow cylinder 31 forming the outflow conduit 30 are provided, and the cylindrical portion 51 of the cylindrical valve body 50 can slide on the inner surface of the cylindrical portion 41. Into the cylindrical valve body 50
The one end 501 of the cylindrical portion 51 communicates with the inflow conduit 10,
The other end 502 is closed and connected to the rotating shaft 62 of the handle 61 of the handle switching device 60, and an outlet 511 communicating with the outlet 411 of the cylindrical portion 41 of the cylindrical valve body 40 in the middle of the cylindrical portion 51. An outlet 512 communicating with the outlet 412 is provided, and a switch is made to allow the outflow from the one inflow line 10 to the two outflow lines 20 and 30. 30 for switching out to one outflow line 20, 30 for switching out of one inflow line 10 to another outflow line 30 of the two outflow lines 20 and 30, and 1 inflow line A change can be made so as not to flow out from the line 10 to any of the two outflow lines 20 and 30. Further, in order to achieve the above object, the present invention, as shown in the drawing, in the fluid switching valve, the cylindrical portion 4 of the cylindrical valve body 40
On the inner peripheral surface fitted to the handle rotation shaft 62, four hole grooves 43 each having an inner periphery divided into four are formed, and a spherical body 432 with a compression spring 431 is fitted into each groove 43. On the outer peripheral surface of the handle shaft 62 in contact with each of the grooves 43, four hemispherical grooves 63 whose outer periphery is divided into four equal parts are formed so that the respective spherical bodies 432 can be fitted into the respective grooves 63. A handle switching device 60 is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIGS. The fluid switching valve according to the embodiment of the present invention is illustrated as an example which is attached to a pipeline of a fluid such as water service. The fluid switching valve according to the embodiment of the present invention includes a set of a cylindrical valve body 40, a set of a cylindrical valve body 50, and a handle switching device 6.
0 is provided. One set of cylindrical box bodies 40 includes a cylindrical portion 4.
1, cap nut 42, packing 44, coupling outflow pipe 2
1 and 31. The cylindrical portion 41 is screwed to one end via a packing 12 for fitting the inflow pipe 11 therein and a seal washer 13 with an O-ring. In addition, cylindrical part 4
In the other end 1, a cap nut 42 with an O-ring is screwed through a packing 44, and a rotation shaft 62 of a handle 61 of a handle switching device 60 described later is rotatably fitted. Further, as shown in FIGS. 4 to 7, the cylindrical portion 41 has an outlet 41 communicating with the outflow pipe 21 in the middle.
1 and an outlet 412 communicating with the outflow pipe 31 are provided. One set of the cylindrical valve body 50 includes the cylindrical valve body 4.
A cylindrical portion 51 is slidably fitted in the cylindrical portion 41 of the O.O., and one end 501 fits a part of the seal washer 13 with the O-ring and the seal washer 1 described above.
It communicates with the inflow pipe 11 through the packing 3 and the packing 12. The other end 502 of the cylindrical portion 51 is closed by the handle 6 of the handle switching device 60 when the fluid flow path from the inflow pipe 11 is closed.
It is connected to one rotation shaft 62. In addition, the cylindrical portion 51
As shown in FIGS. 4 to 7, an outlet 511 communicating with the outlet 411 of the cylindrical portion 41 of the cylindrical valve body 40 and an outlet 512 communicating with the outlet 412 are formed in the middle.
The handle switching device 60 includes a handle 61 and a rotating shaft 62.
And the handle rotation shaft 6 of the cylindrical portion 41 of the cylindrical valve body 40
2, a spherical body 432 with a compression spring 431 fitted into each of four inner holes 43 formed by dividing the inner periphery into four equal parts and rotatably fitted into the inner surface. Four hemispherical grooves 63 formed by dividing the outer periphery into four equal parts on the outer peripheral surface of the handle rotating shaft 62 that is in contact with the handle rotating shaft 62.
2 can be fitted. In addition,
Reference numeral 64 denotes a screw for fitting the handle 61 to the rotating shaft 62 and fixing it. Therefore, when the rotating shaft 62 is rotated clockwise by the handle 60, the rotating shaft 62 is connected to the outlets 512 and 51 of the cylindrical portion 51 of the valve body 50 integrated therewith.
When 1 coincides with the outlets 412 and 411 of the valve body 40 (hereinafter referred to as A switching in FIG. 4), the outlet 512
Coincides with the outlet 411 (hereinafter referred to as B in FIG. 5).
When the outlet 512 comes to the cylindrical portion 41 opposed to the outlet 412 (hereinafter referred to as C in FIG. 6).
When the outlet 512 comes to the cylindrical portion 41 facing the outlet 411 (hereinafter referred to as D in FIG. 7).
The operation of the handle is adjusted so that the spherical body 432 is fitted into the hemispherical groove 63 on the rotating shaft 62 at each switching time. At the time of switching A in FIG.
The fluid flowing in from the inflow pipe 11 flows out to the outflow pipe 21 of the outflow pipe 20 and the outflow pipe 31 of the outflow pipe 30 at the same time. At the time of switching B in FIG. 5, the fluid flowing from the inflow pipe 11 of the inflow pipe 10 is
1, but does not flow out of the outflow pipe 31 of the outflow pipe 30. At the time of C switching in FIG. 6, the inflow pipe 1 of the inflow pipe 10
The fluid flowing from 1 does not flow out to either the outflow pipe 21 of the outflow pipe 20 or the outflow pipe 31 of the outflow pipe 30.
At the time of D switching in FIG. 7, the fluid flowing from the inflow pipe 11 of the inflow pipe 10 flows out to the outflow pipe 31 of the outflow pipe 30, but does not flow out to the outflow pipe 21 of the outflow pipe 20.

[0006]

According to the fluid switching valve of the present invention, a combination of one set of cylindrical valve housings and one set of cylindrical valve bodies allows one or two outflow pipes to be connected from one inflow pipe to two or more outflow pipes. The outflow can be stopped or the outflow can be stopped, and the four switchings can be easily and reliably performed with one touch. Further, since the four switching operations of the fluid switching valve of the present invention do not involve an increase in installation work time or installation space, the installation work can be simplified, and the installation work cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a valve body used in FIG.

FIG. 3 is a sectional view of FIG. 1;

FIG. 4 is an explanatory diagram at the time of fluid switching.

FIG. 5 is another explanatory diagram at the time of fluid switching.

FIG. 6 is another explanatory diagram at the time of fluid switching.

FIG. 7 is another explanatory diagram at the time of fluid switching.

FIG. 8 is an overall perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Inflow pipe 11 Inflow pipe 20 and 30 Outflow pipe 21 and 31 Outflow pipe 40 Valve case 41 Cylindrical part 401 One end of cylindrical part 402 The other end of cylindrical part 411 and 412 Outlet of cylindrical part 42 Cap nut 43 Hole groove 431 Compression spring 432 Spherical body 50 Valve element 51 Cylindrical part 501 One end of cylindrical part 502 The other end of cylindrical part 511, 512 Outlet of cylindrical part 60 Handle switching device 61 Handle 62 Rotation axis 63 Semi-spherical groove

Claims (2)

[Claims] 1. A fluid switching valve which can be operated by a set of a cylindrical valve body 40 and a set of a cylindrical valve body 50, wherein the cylindrical valve box 40 has a cylindrical portion. One end of 41
01 is screwed into the inflow pipe 11 forming the inflow pipe 10, and the other end 402 is screwed into the cap nut 42 in which the rotation shaft 62 of the handle 61 of the handle switching device 60 is rotatably fitted. Outflow pipe 2 forming outflow pipe 20
1, and an outlet 412 communicating with the outflow pipe 31 forming the outflow conduit 30 is formed, and the cylindrical portion 51 of the cylindrical valve body 50 is slid on the inner surface of the cylindrical portion 41. The cylindrical valve body 50 is configured such that one end 501 of the cylindrical portion 51 communicates with the inflow conduit 10 and the other end 50
2 is closed and connected to the rotation shaft 62 of the handle 61 of the handle switching device 60, and the cylindrical valve body 4
Outlet 511 communicating with the outlet 411 of the cylindrical portion 41
And an outflow port 512 communicating with the outflow port 412 are provided so as to switch from one inflow pipe 10 to two outflow pipes 20 and 30, and from the one inflow pipe 10 to the two outflow pipes. For switching out of the channels 20 and 30 to the one outflow line 20, from the one inflow line 10 to the two outflow lines 2
In order to be able to switch between 0 and 30 to flow out to another 1 outflow line 30, and to switch out from 1 inflow line 10 to neither of 2 outflow lines 20 and 30. A fluid switching valve characterized by the following. 2. An inner peripheral surface of the cylindrical portion 41 of the cylindrical valve body 40, which is fitted to the handle rotating shaft 62, is provided with four holes 43 each having an inner periphery divided into four equal parts. A spherical body 432 with a compression spring 431 is fitted into each groove 43, and
In the outer peripheral surface of the handle rotating shaft 62 which is in contact with 3, four hemispherical grooves 63 are formed by dividing the outer periphery into four equal parts.
The fluid switching valve according to claim 1, further comprising a handle switching device (60) adapted to be fitted into each of the grooves (63).