JPH0543332Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a switching valve that switches the flow direction of fluid.

[Prior Art] A supply port, first and second output ports,
It includes first and second discharge ports and two solenoids, and when one solenoid is energized, the supply port and the first output port and the second output port and the second discharge port are communicated with each other. By energizing the solenoid, the supply port and the second output port and the first output port and the first discharge port are communicated with each other, and communication between all ports is cut off in the neutral position, or the first and second output ports are communicated with each other. A double solenoid type three-position switching valve that communicates each of the two with the discharge port is well known without being particularly exemplified.

However, when the above-mentioned three-position switching valve is arranged on a manifold base together with a single solenoid type two-position switching valve, one solenoid of the three-position switching valve protrudes from the installation position of the two-position switching valve, which not only requires extra space but also makes the appearance untidy and unsightly.
There is a demand for a three-position switching valve that has an external shape similar to that of a position switching valve and can be neatly arranged on a manifold base.

In order to meet this demand, a 3-position switching valve has been developed in which two 2-position switching valves with a special structure of the valve body are connected on a manifold, but the special structure of the valve body makes it expensive. There is a problem with becoming.

[Problem to be solved by the invention] The problem to be solved by the invention is to form a 2-position valve on a manifold by constructing a 3-position switching valve with two 2-position switching valves having a known configuration. It is an object of the present invention to provide an inexpensive three-position switching valve that can be arranged in an orderly manner.

[Means for Solving the Problems] In order to solve the above problems, the three-position switching valve of the present invention has a pressure fluid supply port, an output port, and a discharge port.
The first and second switching valves move to the switching position to switch communication between the ports, the manifold base has two output openings on the installation surface of these switching valves, and the output port of each switching valve. and a first and second output passage that communicates with the two output openings,
It is characterized by comprising a valve installation surface of the manifold base and a plate installed between the two switching valves.

In addition, in order to solve the same problem, it has a pressure fluid supply port, first and second output ports, and a discharge port, and a solenoid is used to connect the supply port and the first output port.
a first switching valve that can be switched between a first switching position where the output port and the second output port and the discharge port communicate with each other, and a second switching position where all communication between the ports is cut off; It has the same ports as the switching valve, and has a first switching position where the supply port and the second output port and the first output port and the discharge port communicate with each other by a solenoid, and a second switching position where all communication between the ports is cut off. a manifold base that has first and second output openings on the installation surface of these switching valves, and a first output port of each switching valve and a second switching valve that can be switched to a switching position; It has first and second output passages that communicate the output opening and the second output port with the second output opening, and between the valve installation surface of the manifold base and the first and second switching valves. It is good to have a plate installed.

Furthermore, in order to solve the same problem, a solenoid is used to connect the supply port, the first output port, and the second output port.
first and second switching valves that can be switched between a first switching position where the output port and the discharge port of the port communicate with each other and a second switching position where all communication between the ports is cut off; the first output port and the second output port of the second switching valve to the first output opening;
and a plate having first and second output passages that connect the second output port of the first switching valve and the first output port of the second switching valve to the second output opening, respectively. good.

In addition, in order to solve the same problem, we have set a first switching position where the supply port and the second output port and the first output port and the discharge port communicate with each other using a solenoid, and a second switching position where all communication between the ports is cut off. It is preferable to include first and second switching valves that can be switched to a switching position.

Furthermore, in order to solve the same problem, a solenoid is used to connect the supply port, the first output port, and the second output port.
The first output port and the second discharge port communicate with each other.
and a second switching position in which the supply port and the second output port and the first output port and the first discharge port communicate with each other; a first output passage that communicates the first output port and the first output opening of the switching valve; and a second output passage that communicates the first output port and the second output opening of the second switching valve. It is preferable to have a plate having a.

In addition, in order to solve the same problem, a first output passage that communicates the second output port of the second switching valve and the first output opening, and a first output passage that connects the second output port of the first switching valve and the first output opening are provided. It is preferable to include a plate having a second output passage that connects the two output openings.

[Operation] When the solenoid of one switching valve is energized or de-energized, pressure fluid is output from one output opening of the manifold base through the first output passage provided in the plate, and the solenoid of the other switching valve is energized. Or when de-energized, pressure fluid is output from the other output opening of the manifold base through the second output passage, and when the solenoids of the two switching valves are de-energized or energized, the two of the manifold base
The output openings communicate with the outside, or the communication with the outside is both cut off, or both output openings are supplied with pressure fluid.

Therefore, a three-position switching valve can be configured by two switching valves.

[Embodiment] Figures 1 to 4 show a first embodiment of the present invention, and this three-position switching valve includes first and second switching valves 1 and 2, a manifold base 3, and switching valves 1, 2, and 3.
2 and a plate 4 between the manifold base 3.

The first switching valve 1 includes a pressure fluid supply port P1, first and second output ports A1, B1, and the first and second discharge ports EA1, EB1, and excitation and de-excitation of the solenoid 1a. Accordingly, a first switching position where supply port P1 and first output port A1 and second output port B1 and second discharge port EB1 communicate with each other, and a second switching position where communication between all ports is cut off. It is configured as a 5-port, 2-position valve that can be switched between two positions. Further, the second switching valve 2 has the same ports P2 and A as the first switching valve 1.
2, B2, EA2, EB2, solenoid 2a
A first switching position where ports P2 and B2 and A2 and EA2 communicate with each other by energizing and de-energizing;
It is configured as a 5-port, 2-position valve that can be switched to a second switching position that blocks communication between all ports.

However, these switching valves 1 and 2 can each be a 4-port, 2-position valve with a common discharge port.

Note that the switching valves 1 and 2 are not limited to the pilot type shown in the drawings, but may be of a direct acting type in which the valve body is directly driven by a solenoid to switch the flow path.

The manifold base 3 includes a pressure fluid supply channel 7 and a discharge channel 8 parallel to the installation direction of the switching valves 1 and 2, supply openings 9a and 9b opening to the installation surface of the switching valves 1 and 2, first, Second output aperture 10a, 10
b, discharge openings 11a, 11b, and supply opening 9
a, 9b, supply channel 7 and discharge openings 11a, 11
b and a plurality of channels that communicate with the discharge channel 8, and the first and second output openings 10a and 10b and the first and second output ports 12a and 12b opened on one surface orthogonal to the valve installation surface. It is equipped with a flow path that communicates with each other.

The plate 4 has supply passages 15a, 15 that communicate the supply ports P1, P2 with the supply openings 9a, 9b.
b. The first output ports A1 and A2 are connected to the first output opening 10a, and the second output ports B1 and B2 are connected to the second output port 10a.
first and second output passages 16a, 16b, and a discharge port, which communicate with the output opening 10b of the
Discharge passages 17a and 17b are provided for communicating EA1, EB1 and EA2, EB2 with discharge openings 11a and 11b (see FIG. 1).

The plate 4 includes a first plate 4A and a second plate 4, as shown in FIGS. 2 to 4.
B, consisting of switching valves 1, 2 and a first plate 4A.
The exhaust ports EA1 and EB1 and EA2 and EB2 are made to communicate with each other by the first gaskets 20, 20 provided between the plates 4A and 4B. A1
When A2 and B1 and B2 are made to communicate with each other, output passages 16a, 16b and discharge passages 17a, 17b
is easy to form. However, plate 4
It goes without saying that they may be formed as a single piece.

In addition, in FIGS. 2 and 4, for convenience of explanation, each passage is given the same reference numeral as each port of the switching valves 1 and 2, and the reference numeral of each passage is omitted.

Then, switching valves 1 and 2, plates 4A and 4B,
The gaskets 20, 20 and 21 are attached to the valve installation surface of the manifold base 3 by means of attachment bolts 23, . . . .

The manifold base 3 has two output openings that individually communicate with the first and second output ports of each switching valve, and an output port 12a that individually communicates with these.
A well-known manifold base having output ports 12c,
12d is closed by plugs 25, 25 (see FIG. 1). Further, it is also possible to provide a series of manifold blocks in which each switching valve is individually installed.

In the first embodiment, when the solenoid 1a is energized, the supply passage 15a and the port P of the first switching valve are
1, A1, the first output port 12 of the manifold base 3 through the first output passage 16a of the plate 4
Pressure fluid is output from a, and fluid from the second output port 12b is discharged to the outside through the second output passage 16b of the plate 4, ports B1 and EB1 of the first switching valve, and the discharge passage 17a. When the solenoid 1a is de-energized and the solenoid 2a is energized, pressure fluid is output from the second output port 12b, and the fluid from the first output port 12a is discharged to the outside, and the solenoid 1a and 2a are energized. When both are released, the output ports 12a and 12b are both blocked by the switching valves 1 and 2.

Therefore, since a 3-position switching valve can be constructed by the two 2-position switching valves 1 and 2, they can be installed in an orderly arrangement on the manifold block 3 together with the 2-position switching valve, and moreover, they can be installed in the manifold block 3 in an orderly manner. Since a known two-position switching valve can be used as is, the three-position switching valve can be made inexpensive.

5 and 6 show a second embodiment of the present invention, and the first and second switching valves 3 in the second embodiment
1 and 32 have the same configuration as the first switching valve 1 of the first embodiment, and the plate 33 has a second gasket 34 provided between the first plate 33A and the second plate 33B. Therefore, the first switching valve 31
A first output passage 35a that communicates the first output port A1 of the first output port A1 and the second output port B2 of the second switching valve 32 with the first output opening 10a, and the second output of the first switching valve 31. Port B1 and second switching valve 32
The first output port A2 is connected to the second output port 10b.
A second output passage 35b is formed which communicates with the.

Since the other configurations of the second embodiment are the same as those of the first embodiment, the main parts in the figure are denoted by the same reference numerals and detailed explanations will be omitted.

In the second embodiment, when the solenoid 31a is energized, the solenoid 31a is activated from the first output port 12a.
When the solenoid 32a is deenergized and the solenoid 32a is energized, pressure fluid is output from the second output port 12b, and when both the solenoids 31a and 32a are de-energized, the output ports 12a and 12b are closed. Therefore, the plate 33 allows two
The two-position switching valves 31 and 32 can constitute a three-position switching valve.

FIG. 7 shows a third embodiment of the present invention, in which the first and second switching valves 36, 37 are
It has the same configuration as the switching valve 2 of the embodiment, and the second output port B of the first switching valve 36 is provided on the plate 38.
A first output passage 39a that communicates the first output port A2 of the first and second switching valves 37 with the first output opening 10a, and Second output port B of switching valve 37
A second output passage 39b is formed that communicates the output opening 10b with the second output opening 10b.

The other configuration of the third embodiment and the operation of energizing and de-energizing the solenoids 36a and 37a of the switching valves 36 and 37 are the same as in the second embodiment, so the same reference numerals are given to the main parts in the figures. A detailed explanation will be omitted.

8 and 9 show a fourth embodiment of the present invention, and the first and second switching valves 4 in the fourth embodiment are shown in FIG.
1 and 42 are the supply ports P1 and P2 and the first
A first switching position where the output ports A1, A2 and the second output ports B1, B2 communicate with the second exhaust ports EB1, EB2, and the supply ports P1, P2.
and second output ports B1, B2, and first output ports A1, A2 and first exhaust ports EA1, EA.
The valve is configured as a two-position switching valve that can be switched to a second switching position where the valve 2 is in communication with the valve.

On the other hand, the plate 43 is the first plate 43A.
It has the same structure as the plate 33 (see FIG. 6) except that the ports B1 and B2 are closed by plugs 44 and 44, respectively. In the above embodiment, the plugs 44, 44 connect the second output port B.
1. By closing B2, plate 43
a first connecting the first output port A1 of the first switching valve 41 and the first output opening 10a, and the first output port A2 of the second switching valve 42 and the second output opening 10b; Second output passages 45a, 45b
is formed.

Since the other configurations of the fourth embodiment are the same as those of the first embodiment, the same reference numerals are given to the main parts in the figure, and detailed explanations will be omitted.

In the fourth embodiment, the solenoids 41a and 42a
When the solenoids 41a and 42a are de-energized, pressure fluid is output from the output ports 12a and 12b, and the output ports 12a and 12b are connected to the switching valve 41.
and 42, both communicate with the outside.

10 and 11 show a fifth embodiment of the present invention, in which the first and second switching valves 41, 4
2 and a plate 51.

The plate 51 is the same as the plate 33 (see Fig. 6).
The ports A1, A2 of the first plate 51A are closed by the plugs 44, 44, and thereby the second output port B2 of the second switching valve 42 and the first output A first output passage 52a that communicates with the opening 10a and a second output passage 52b that communicates the second output port B1 of the first switching valve 41 with the second output opening 10b are formed.

Since the other configurations of the fifth embodiment are the same as those of the first embodiment, the same reference numerals are given to the main parts in the figure, and detailed explanations are omitted.

In the fifth embodiment, the solenoids 42a, 41a
Pressure fluid is output from the first output port 12a and the second output port 12b due to the excitation of the solenoid 41.
When the excitation of a, 42a is canceled, the output ports 12a,
Pressure fluid is output from 12b.

The above first to fifth embodiments all use a 5-port valve or a 4-port valve as the 2-position switching valve, but the 2-position switching valve of the present invention is not limited to these valves, and the basic In this case, a 3-position switching valve can be constructed by two 3-port 2-position switching valves.

FIG. 12 shows a sixth embodiment of the present invention, which includes first and second 3-port, 2-position switching valves 61 and 62 and a plate 63.
2 is a first switching position where supply ports P1, P2 and output ports A1, A2 communicate with each other by excitation of solenoids 61a, 62a;
The first switching valve 61 is configured as a two-position switching valve that can be switched to a second switching position where output ports A1, A2 and discharge ports R1, R2 communicate with each other by de-energizing the first switching valve 2a. A first output passage 64a that communicates the output port A1 with the first output opening 10a, and a first output passage 64b that communicates the output port A2 of the second switching valve 62 with the second output opening 10b are formed. ing.

Since the other configurations of the sixth embodiment are the same as those of the first embodiment, the same reference numerals are given to the main parts in the figure, and detailed explanations will be omitted.

In the sixth embodiment, when the solenoid 61a is energized, the solenoid 62a is
When the solenoids 61a and 62a are deenergized, pressure fluid is outputted from the second output port 12b, and when the solenoids 61a and 62a are deenergized, both the output ports 12a and 12b communicate with the outside.

FIG. 13 shows a seventh embodiment of the present invention, in which the first,
The second switching valves 66, 67 include solenoids 66a,
a first switching position where the output ports A1, A2 and the exhaust ports R1, R2 communicate with each other due to the excitation of the 67a;
It is configured as a two-position switching valve that can be switched to a second switching position where supply ports P1, P2 and output ports A1, A2 communicate with each other by de-energizing the solenoids 66a, 67a. Output port A2 of valve 67 and first output opening 1
0a, and a first output passage 69a that communicates with
An output passage 69b is formed that communicates the output port A1 of the switching valve 66 with the second output opening 10b.

Since the other configurations of the seventh embodiment are the same as those of the first embodiment, the same reference numerals are given to the main parts in the figure, and detailed explanations will be omitted.

In the seventh embodiment, the solenoid 67a or 6
When the solenoid 6a is energized, the output port 12a or 12b communicates with the outside, and when the solenoids 67a and 67b are de-energized, pressure fluid is output from the output ports 12a and 12b.

[Effects of the invention] Since the present invention constitutes a 3-position switching valve using two 2-position switching valves, it can be arranged neatly on a manifold base in the same way as a 2-position switching valve. Able to keep the work environment orderly.

In addition, the output port of each 2-position switching valve and the output opening of the manifold base are communicated with each other by an output passage provided in a plate installed between the two 2-position switching valves and the manifold base. Since the existing two-position switching valve can be used as is, the three-position switching valve, which can be arranged neatly together with the two-position switching valve, can be made inexpensive.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIGS. 1 to 4 are a configuration diagram of the first embodiment, an exploded perspective view of the main parts,
An assembled perspective view and an assembled view of the plate, FIGS. 5 and 6 are a configuration diagram and an exploded perspective view of the main parts of the second embodiment, FIG. 7 is a configuration diagram of the third embodiment, and FIGS. 8 and 9. The figure is a configuration diagram and an exploded perspective view of the main parts of the fourth embodiment, FIGS. 10 and 11 are a configuration diagram and an exploded perspective view of the main parts of the fifth embodiment, and FIGS. 12 and 13 are the It is a block diagram of an Example and a 7th Example. 1, 31, 36, 41, 61, 66...first switching valve, 1a, 2a, 31a, 32a, 36a,
37a, 41a, 42a, 61a, 62a, 66
a, 67a... Solenoid, 2, 32, 37, 4
2, 62, 67... Second switching valve, 3... Manifold base, 4, 33, 38, 43, 51, 6
3, 68...Plate, 10a, 10b...Output opening, 16a, 35a, 39a, 45a, 52
a, 64a, 69a...first output path, 16
b, 35b, 39b, 45b, 52b, 64b,
69b... Second output path, P1, P2... Supply port, A1, A2, B1, B2... Output port, EA1, EB1, EA2, EB2, R1, R2...
...Exhaust port.

Claims (1)

[Claims for Utility Model Registration] 1. Has a pressure fluid supply port, output port, and discharge port, and has a first and second
A first and second switching valve that moves to the switching position to switch communication between the ports, a manifold base that has two output openings on the installation surface of these switching valves, and an output port of each switching valve. and a first and second output passage that communicates with the two output openings,
A three-position switching valve characterized by comprising: a valve installation surface of a manifold base and a plate installed between two switching valves. 2. A pressure fluid supply port, a first output port, a second output port, and a discharge port, and a first switching position where the supply port and the first output port and the second output port and the discharge port communicate with each other by a solenoid. , a first switching valve that can be switched to a second switching position that cuts off all communication between the ports, and a first switching valve that has the same port as the first switching valve, and a solenoid that connects the supply port, the second output port, and the second switching position. a second switching valve that can be switched between a first switching position where the first output port and the discharge port communicate with each other and a second switching position where all communication between the ports is cut off; and an installation surface of these switching valves. a manifold base having first and second output openings therein; and a first manifold base that communicates the first output port and the first output opening, and the second output port and the second output opening of each switching valve, respectively. and a second output passage, and a plate installed between the valve installation surface of the manifold base and the first and second switching valves. 3 A first switching position that can be switched by a solenoid between a first switching position where the supply port and the first output port and the second output port and the discharge port communicate with each other, and a second switching position where all communication between the ports is cut off.
and a second switching valve, a first output port of the first switching valve and a second output port of the second switching valve as the first output opening, and a second output port of the first switching valve. and a plate having first and second output passages respectively communicating the first output port of the second switching valve with the second output opening. 3 position switching valve. 4 A first switching position that can be switched by a solenoid between a first switching position where the supply port and the second output port and the first output port and the discharge port communicate with each other, and a second switching position where all communication between the ports is cut off.
The three-position switching valve according to claim 3, further comprising: and a second switching valve. 5 A first switching position where the supply port and the first output port and the second output port and the second discharge port communicate with each other by the solenoid, and a first switching position where the supply port and the second output port and the first output port and the first first and second switching valves that are switchable to a second switching position with which the discharge port of the first switching valve communicates; and a first output that communicates the first output port of the first switching valve with the first output opening. passage, and second
The three-position switching valve according to claim 2, further comprising: a plate having a second output passage communicating the first output port and the second output opening of the switching valve. 6 A first output passage that communicates the second output port of the second switching valve with the first output opening, and a second output passage that communicates the second output port of the first switching valve with the second output opening. The three-position switching valve according to claim 5, further comprising a plate having an output passage.