JP7664208B2 - Solenoid valve manifold - Google Patents

Description

The present invention relates to a solenoid valve manifold.

For example, as disclosed in Patent Document 1, the solenoid valve manifold may include a solenoid valve, a control unit, a base unit, and a spacer. The solenoid valve has a valve unit and a solenoid unit. The valve unit has a plurality of ports. The solenoid valve has a solenoid valve side connector unit. The solenoid valve side connector unit is electrically connected to the solenoid unit. The control unit has a circuit board. The circuit board controls the operation of the solenoid valve. The base unit has a control unit. The base unit has a base side connector unit and a plurality of communication flow paths. The base side connector unit is electrically connected to the circuit board. The plurality of communication flow paths are respectively connected to each port. The spacer has a relay connector unit and a plurality of connection flow paths. The relay connector unit connects the solenoid valve side connector unit and the base side connector unit. The plurality of connection flow paths connect each port and each communication flow path, respectively.

A first gasket is interposed between the valve portion and the spacer. The first gasket prevents leakage of fluid flowing between each port and each connecting flow path from between the valve portion and the spacer. A second gasket is interposed between the spacer and the base portion. The second gasket prevents leakage of fluid flowing between each connecting flow path and each communicating flow path from between the spacer and the base portion.

The spacer has a screw insertion hole through which the screw that has passed through the valve portion is inserted. The base portion has a female threaded hole into which the screw is screwed. The solenoid valve and spacer are fixed to the base portion by the screw that has passed through the valve portion passing through the screw insertion hole and being screwed into the female threaded hole.

JP 2004-36841 A

When assembling such a solenoid valve manifold, first, the relay connector part is aligned with the base connector part, and the spacer is placed on the base part while the relay connector part is connected to the base connector part. Next, the solenoid valve side connector part is aligned with the relay connector part, and the solenoid valve side connector part is connected to the relay connector part while the spacer is placed. Then, the screw that has passed through the valve part is passed through the screw insertion hole and screwed into the female threaded hole.

At this time, due to the accumulation of dimensional tolerances between the base side connector section and the relay connector section, and between the relay connector section and the solenoid valve connector section, etc., the position of the screw that penetrates the valve section and the screw insertion hole may become misaligned. If this occurs, the screw that penetrates the valve section will not be able to pass through the screw insertion hole, and there is a risk that the solenoid valve manifold will not be able to be assembled.

In addition, when assembling the solenoid valve manifold, for example, if the spacer interferes with the periphery of the base side connector part in the base part, the spacer may not be able to press the second gasket sufficiently. This reduces the sealing performance of the second gasket. Therefore, when assembling the solenoid valve manifold, it is necessary to design it so that the spacer can sufficiently press the second gasket without interfering with the periphery of the base side connector part in the base part. Then, when placing the solenoid valve on the spacer, there is a risk that the solenoid valve will easily interfere with the periphery of the relay connector part of the spacer due to the dimensional tolerance between the spacer and the solenoid valve. This may result in the solenoid valve being unable to sufficiently press the first gasket. This reduces the sealing performance of the first gasket, and reduces the reliability of the solenoid valve manifold.

Therefore, it is desirable to improve the reliability of solenoid valve manifolds while also improving their assembly ease.

A solenoid valve manifold that solves the above problem includes a solenoid valve having a valve portion and a solenoid portion, a control portion having a circuit board that controls the drive of the solenoid valve, a base portion having the control portion, and a spacer interposed between the solenoid valve and the base portion, wherein the valve portion has a plurality of ports, the solenoid valve has a solenoid valve side connector portion electrically connected to the solenoid portion, the base portion has a base side connector portion electrically connected to the circuit board and a plurality of communication flow paths each communicating with the ports, the spacer has a relay connector portion connecting the solenoid valve side connector portion and the base side connector portion, and a plurality of connection flow paths connecting each of the ports and each of the communication flow paths, a first gasket is interposed between the valve portion and the spacer to suppress leakage of fluid flowing between each of the ports and each of the connection flow paths from between the valve portion and the spacer, and a second gasket is interposed between the spacer and the base portion to suppress leakage of fluid flowing between each of the connection flow paths and each of the communication flow paths from between the spacer and the base portion. The solenoid valve manifold has two gaskets interposed between the spacer and the solenoid valve and the spacer fixed to the base by screws, the spacer has a screw insertion hole through which the screw that penetrates the valve is inserted, and the base has a female screw hole into which the screw is screwed. The spacer has a relay block having the relay connector portion, a spacer block arranged next to the relay block and having the multiple connection flow paths and the screw insertion holes formed therein, and a connecting mechanism that connects the relay block and the spacer block. The first gasket is interposed between the valve portion and the spacer block, and the second gasket is interposed between the spacer block and the base. If the direction in which the relay block and the spacer block are lined up is the juxtaposition direction, and the direction in which the solenoid valve, the spacer, and the base are stacked is the stacking direction, the connecting mechanism connects the relay block and the spacer block while allowing movement in the juxtaposition direction and the stacking direction.

In the above solenoid valve manifold, the base portion has a base insertion port into which the relay connector portion is inserted and in which the base side connector portion is disposed on the inside, the relay connector portion is electrically connected to the solenoid valve side connector portion and has a relay tubular portion into which the base side connector portion is inserted, the relay connector portion is connected to the base side connector portion by inserting the relay tubular portion into the base insertion port, and a rubber relay side lip packing is provided between the outer peripheral surface of the relay tubular portion and the inner peripheral surface of the base insertion port to seal between the relay tubular portion and the base insertion port, The relay block has the relay connector portion disposed inside and a relay insertion port into which the solenoid valve side connector portion is inserted, the solenoid valve side connector portion has a solenoid valve side cylindrical portion into which the relay connector portion is inserted, the solenoid valve side connector portion is connected to the relay connector portion by inserting the solenoid valve side cylindrical portion into the relay insertion port, a rubber solenoid valve side lip packing is provided between the outer peripheral surface of the solenoid valve side cylindrical portion and the inner peripheral surface of the relay insertion port to seal between the solenoid valve side cylindrical portion and the relay insertion port, and an elastic body is provided to bias the relay block toward the base portion.

In the above solenoid valve manifold, the elastic body may be a long plate that is integrally formed with the relay block and extends obliquely from the surface of the relay block facing the solenoid valve toward the solenoid valve.

In the above solenoid valve manifold, the connecting mechanism may connect the relay block and the spacer block by a snap-fit structure while allowing movement in the juxtaposition direction and the stacking direction.

This invention improves the ease of assembly of the solenoid valve manifold while also improving the reliability of the solenoid valve manifold.

FIG. 2 is a cross-sectional view showing a solenoid valve manifold in the embodiment. FIG. 2 is an exploded perspective view showing a solenoid valve, a spacer, and a base portion. FIG. 4 is an exploded perspective view showing a relay block and a spacer block. FIG. 2 is a perspective view showing a portion of a spacer block. FIG. 2 is a perspective view showing a portion of a spacer block. FIG. 4 is a perspective view showing a part of a relay block. FIG. 2 is a diagram illustrating a schematic view of a solenoid valve, a spacer, and a base portion. 5A and 5B are schematic diagrams for explaining the function of an elastic portion. 5A and 5B are schematic diagrams for explaining the function of an elastic portion.

Hereinafter, one embodiment of a solenoid valve manifold will be described with reference to FIGS.
<Outline of solenoid valve manifold>
As shown in Fig. 1, the solenoid valve manifold 10 includes a solenoid valve 11. The solenoid valve 11 includes a valve portion 12, a first pilot solenoid valve V1, and a second pilot solenoid valve V2. The solenoid valve 11 is a pilot solenoid valve of a double solenoid type. The solenoid valve manifold 10 also includes a control portion 40, a base portion 30, and a spacer 50. The spacer 50 is interposed between the solenoid valve 11 and the base portion 30. The solenoid valve 11, the spacer 50, and the base portion 30 are stacked in this order. In the following description, the direction in which the solenoid valve 11, the spacer 50, and the base portion 30 are stacked is referred to as a "stacking direction Y1."

The valve section 12 has a valve casing 13. The valve casing 13 is a rectangular block. The valve casing 13 has a valve body 14, a first connecting block 15, and a second connecting block 16. The valve body 14 is a rectangular block. The first connecting block 15 is connected to a first end of the valve body 14 in the longitudinal direction. The second connecting block 16 is connected to a second end of the valve body 14 in the longitudinal direction. The valve body 14 has a main body facing surface 14a that faces the spacer 50.

The valve casing 13 has a spool valve hole 17. The spool valve hole 17 is formed in the valve body 14. The spool valve hole 17 is a circular hole. The spool valve hole 17 extends in the longitudinal direction of the valve body 14. A first end of the spool valve hole 17 opens to a first longitudinal end face of the valve body 14. A second end of the spool valve hole 17 opens to a second longitudinal end face of the valve body 14. Thus, the spool valve hole 17 penetrates the valve body 14 in the longitudinal direction.

The solenoid valve 11 has a spool valve 18. The spool valve 18 is accommodated in the spool valve hole 17. The spool valve 18 is accommodated in the spool valve hole 17 with the axial direction of the spool valve 18 coinciding with the axial direction of the spool valve hole 17. The spool valve 18 is accommodated in the spool valve hole 17 so as to be capable of reciprocating motion.

The solenoid valve 11 has a supply port P, a first output port A, a second output port B, a first exhaust port R1, and a second exhaust port R2. Therefore, the solenoid valve 11 of this embodiment is a five-port solenoid valve. The supply port P, the first output port A, the second output port B, the first exhaust port R1, and the second exhaust port R2 are formed in the valve body 14. The supply port P, the first output port A, the second output port B, the first exhaust port R1, and the second exhaust port R2 are ports formed in the valve section 12. Therefore, the valve section 12 has a plurality of ports. The supply port P, the first output port A, the second output port B, the first exhaust port R1, and the second exhaust port R2 are each connected to the spool valve hole 17.

The first exhaust port R1, the first output port A, the supply port P, the second output port B, and the second exhaust port R2 are formed in the valve body 14 in this order from the first end to the second end in the longitudinal direction of the valve body 14. The first ends of the supply port P, the first output port A, the second output port B, the first exhaust port R1, and the second exhaust port R2 are connected to the spool valve hole 17. The second ends of the supply port P, the first output port A, the second output port B, the first exhaust port R1, and the second exhaust port R2 are open to the main body facing surface 14a of the valve body 14.

The solenoid valve 11 has a first piston 19 and a second piston 20. The first piston 19 is disk-shaped. The first piston 19 is connected to a first end of the spool valve 18. The first piston 19 moves integrally with the spool valve 18. The second piston 20 is disk-shaped. The second piston 20 is connected to a second end of the spool valve 18. The second piston 20 moves integrally with the spool valve 18.

A circular hole-shaped first piston accommodating recess 21 is formed in the first connecting block 15. The first piston 19 is accommodated in the first piston accommodating recess 21 so that it can reciprocate. The first piston accommodating recess 21 and the first piston 19 define a first pilot pressure chamber 22. Pilot fluid is supplied to and discharged from the first pilot pressure chamber 22.

A circular hole-shaped second piston accommodating recess 23 is formed in the second connecting block 16. The second piston 20 is accommodated in the second piston accommodating recess 23 so that it can reciprocate. The second piston accommodating recess 23 and the second piston 20 define a second pilot pressure chamber 24. Pilot fluid is supplied to and discharged from the second pilot pressure chamber 24.

The base portion 30 has a manifold block 31. The manifold block 31 is in the shape of a rectangular block. The manifold block 31 has a mounting surface 31a. A spacer 50 is mounted on the mounting surface 31a. The longitudinal direction of the manifold block 31 coincides with the longitudinal direction of the valve casing 13.

The manifold block 31 has a supply flow path 32, a first output flow path 33, a second output flow path 34, a first discharge flow path 35, and a second discharge flow path 36. The supply flow path 32, the first output flow path 33, the second output flow path 34, the first discharge flow path 35, and the second discharge flow path 36 open to the mounting surface 31a.

The end of the supply flow path 32 opposite the mounting surface 31a is connected to a fluid supply source (not shown) via, for example, piping or the like. The end of the first output flow path 33 opposite the mounting surface 31a and the end of the second output flow path 34 opposite the mounting surface 31a are each connected to a fluid pressure device (not shown) via, for example, piping or the like. The end of the first discharge flow path 35 opposite the mounting surface 31a and the end of the second discharge flow path 36 opposite the mounting surface 31a are connected to the atmosphere via, for example, piping or the like.

The control unit 40 is built into the manifold block 31. Therefore, the base unit 30 has the control unit 40. The control unit 40 has a circuit board 41. The circuit board 41 is supplied with power from an external control device such as a programmable logic controller (PLC) (not shown). The circuit board 41 is built into the manifold block 31. The circuit board 41 controls the operation of each of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. Therefore, the circuit board 41 controls the operation of the solenoid valve 11.

The solenoid valve 11 has a first solenoid section S1 and a second solenoid section S2 as solenoid sections. The first pilot solenoid valve V1 has a first solenoid section S1. The first pilot solenoid valve V1 supplies and discharges pilot fluid to the first pilot pressure chamber 22. When a voltage is applied from the circuit board 41 to the first solenoid section S1, the first pilot solenoid valve V1 supplies compressed fluid from a fluid supply source (not shown) to the first pilot pressure chamber 22 as pilot fluid. On the other hand, when the application of voltage from the circuit board 41 to the first solenoid section S1 is stopped, the first pilot solenoid valve V1 stops supplying the compressed fluid from the fluid supply source to the first pilot pressure chamber 22. Then, the first pilot solenoid valve V1 discharges the pilot fluid in the first pilot pressure chamber 22 to the atmosphere.

The second pilot solenoid valve V2 has a second solenoid section S2. The second pilot solenoid valve V2 supplies and discharges pilot fluid to the second pilot pressure chamber 24. When a voltage is applied from the circuit board 41 to the second solenoid section S2, the second pilot solenoid valve V2 supplies compressed fluid from the fluid supply source to the second pilot pressure chamber 24 as pilot fluid. On the other hand, when the application of voltage from the circuit board 41 to the second solenoid section S2 is stopped, the second pilot solenoid valve V2 stops supplying compressed fluid from the fluid supply source to the second pilot pressure chamber 24. Then, the second pilot solenoid valve V2 discharges the pilot fluid in the second pilot pressure chamber 24 to the atmosphere.

The spool valve 18 can be switched between a first position and a second position. For example, suppose that a voltage is applied from the circuit board 41 to the first solenoid section S1, and that the voltage application from the circuit board 41 to the second solenoid section S2 is stopped. Then, the first pilot solenoid valve V1 supplies compressed fluid from the fluid supply source to the first pilot pressure chamber 22 as pilot fluid. Meanwhile, the second pilot solenoid valve V2 exhausts the pilot fluid in the second pilot pressure chamber 24 to the atmosphere. This causes the spool valve 18 to move toward the second piston accommodating recess 23. As a result, the spool valve 18 switches to the first position in which the supply port P communicates with the first output port A and the second output port B communicates with the second exhaust port R2. Furthermore, when the spool valve 18 is switched to the first position, the supply port P is blocked from the second output port B, and the first output port A is blocked from the first exhaust port R1.

For example, suppose that the application of voltage from the circuit board 41 to the first solenoid section S1 is stopped and that the application of voltage from the circuit board 41 to the second solenoid section S2 is being performed. Then, the second pilot solenoid valve V2 supplies compressed fluid from the fluid supply source to the second pilot pressure chamber 24 as pilot fluid. Meanwhile, the first pilot solenoid valve V1 exhausts the pilot fluid in the first pilot pressure chamber 22 to the atmosphere. This causes the spool valve 18 to move toward the first piston accommodating recess 21. As a result, the spool valve 18 switches to a second position that communicates the supply port P with the second output port B and communicates the first output port A with the first exhaust port R1. When the spool valve 18 switches to the second position, the supply port P is blocked from the first output port A and the second output port B is blocked from the second exhaust port R2.

In this way, pilot fluid is supplied to and discharged from the first pilot pressure chamber 22 in the first pilot solenoid valve V1, and pilot fluid is supplied to and discharged from the second pilot pressure chamber 24 in the second pilot solenoid valve V2. This causes the spool valve 18 to reciprocate within the spool valve hole 17 between the first and second positions. The spool valve 18 switches communication between the ports by switching between the first and second positions. Thus, the valve section 12 switches communication between multiple ports by supplying and discharging pilot fluid to and from the first pilot pressure chamber 22 and the second pilot pressure chamber 24. Note that FIG. 1 shows the spool valve 18 in the second position.

The first pilot solenoid valve V1 and the second pilot solenoid valve V2 are arranged side by side and integrated with each other. Specifically, the first pilot solenoid valve V1 and the second pilot solenoid valve V2 are located on the opposite side of the first connecting block 15 from the valve body 14. The first pilot solenoid valve V1 and the second pilot solenoid valve V2 are arranged side by side with respect to the first connecting block 15. The first pilot solenoid valve V1 and the second pilot solenoid valve V2 are integrated with the first connecting block 15. Therefore, the first pilot solenoid valve V1 and the second pilot solenoid valve V2 are integrally provided in the valve section 12.

The solenoid valve 11 has a protrusion 25. The protrusion 25 is a portion of the solenoid valve 11 where a part of the first pilot solenoid valve V1 and a part of the second pilot solenoid valve V2 protrude toward the base portion 30 beyond the main body facing surface 14a of the valve body 14.

The solenoid valve 11 has a pair of solenoid valve side connector parts 26. One of the pair of solenoid valve side connector parts 26 is electrically connected to the first solenoid part S1. The other of the pair of solenoid valve side connector parts 26 is electrically connected to the second solenoid part S2. Therefore, the solenoid valve side connector parts 26 are electrically connected to the solenoid part. Each solenoid valve side connector part 26 has a solenoid valve side cylindrical part 27. Each solenoid valve side cylindrical part 27 protrudes from the tip surface of the protruding part 25. A solenoid valve side lip packing 28 is attached to the outer peripheral surface of each solenoid valve side cylindrical part 27. The solenoid valve side lip packing 28 is made of rubber. The solenoid valve side lip packing 28 is annular.

As shown in FIG. 2, the pair of solenoid valve side connector parts 26 are arranged side by side in the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. Therefore, the juxtaposition direction of the pair of solenoid valve side connector parts 26 coincides with the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2.

The solenoid valve 11 has a pair of protrusions 29. Each protrusion 29 is provided on the protruding portion 25. One of the pair of protrusions 29 protrudes from one of both side surfaces of the protruding portion 25. The other of the pair of protrusions 29 protrudes from the other of both side surfaces of the protruding portion 25. Each protrusion 29 is a square prism that protrudes from the main body facing surface 14a toward the spacer 50.

As shown in FIG. 1, the base portion 30 includes a connector member 42. The connector member 42 includes a pair of base-side connector portions 43. Thus, the base portion 30 includes the base-side connector portions 43. Each base-side connector portion 43 is electrically connected to the circuit board 41.

As shown in FIG. 2, the base portion 30 has a mating recess 44. The mating recess 44 is formed in the mounting surface 31a. The mating recess 44 has a bottom surface 44a and a pair of side surfaces 44b. The bottom surface 44a is flat. The bottom surface 44a extends parallel to the mounting surface 31a. Each side surface 44b extends in a direction perpendicular to the bottom surface 44a. Each side surface 44b extends from the bottom surface 44a. Each side surface 44b is continuous with the mounting surface 31a. Each side surface 44b connects the bottom surface 44a and the mounting surface 31a.

The base portion 30 has a pair of base insertion openings 45. Each base insertion opening 45 opens to the bottom surface 44a of the fitting recess 44. Each base insertion opening 45 has the base side connector portion 43 disposed inside. The pair of base insertion openings 45 are arranged side by side in the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. Therefore, the juxtaposition direction of the pair of base insertion openings 45 coincides with the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. The base portion 30 is provided with a pair of recesses 46. Each recess 46 is formed in each side surface 44b. Each recess 46 opens to each side surface 44b and the mounting surface 31a.

<Spacer Overview>
The spacer 50 includes a relay block 51, a spacer block 71, and a connecting mechanism 80. The connecting mechanism 80 connects the relay block 51 and the spacer block 71 together.

The spacer block 71 is in the shape of a rectangular block. The spacer block 71 has a mounting surface 71a. A portion of the solenoid valve 11 is mounted on the mounting surface 71a. The longitudinal direction of the spacer block 71 coincides with the longitudinal direction of the valve casing 13. The spacer block 71 has a spacer block opposing surface 71b that faces the mounting surface 31a of the manifold block 31.

The relay block 51 is a rectangular block. The relay block 51 has a mounting surface 51a. A portion of the solenoid valve 11 is mounted on the mounting surface 51a. The longitudinal direction of the relay block 51 coincides with the longitudinal direction of the valve casing 13. The relay block 51 has a relay block facing surface 51b that faces the mounting surface 31a of the manifold block 31.

The spacer block 71 is arranged next to the relay block 51. The longitudinal direction of the spacer block 71 coincides with the longitudinal direction of the relay block 51. The relay block 51 and the spacer block 71 are arranged next to each other in the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. Therefore, the juxtaposition direction of the relay block 51 and the spacer block 71 coincides with the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. In the following description, the juxtaposition direction of the relay block 51 and the spacer block 71 is referred to as the "juxtaposition direction X1."

The spacer block 71 has a first opposing surface 71c that faces the relay block 51 in the juxtaposition direction X1. The relay block 51 has a second opposing surface 51c that faces the first opposing surface 71c in the juxtaposition direction X1.

As shown in FIG. 1, the spacer 50 has a supply connection flow path 52, a first output connection flow path 53, a second output connection flow path 54, a first exhaust connection flow path 55, and a second exhaust connection flow path 56. The supply connection flow path 52, the first output connection flow path 53, the second output connection flow path 54, the first exhaust connection flow path 55, and the second exhaust connection flow path 56 are formed in the spacer block 71. The first ends of the supply connection flow path 52, the first output connection flow path 53, the second output connection flow path 54, the first exhaust connection flow path 55, and the second exhaust connection flow path 56 open to the mounting surface 71a. The second ends of the supply connection flow path 52, the first output connection flow path 53, the second output connection flow path 54, the first exhaust connection flow path 55, and the second exhaust connection flow path 56 open to the spacer block facing surface 71b.

The supply connection flow path 52 connects the supply port P and the supply flow path 32. The first output connection flow path 53 connects the first output port A and the first output flow path 33. The second output connection flow path 54 connects the second output port B and the second output flow path 34. The first exhaust connection flow path 55 connects the first exhaust port R1 and the first exhaust flow path 35. The second exhaust connection flow path 56 connects the second exhaust port R2 and the second exhaust flow path 36.

Therefore, the supply flow path 32 is connected to the supply port P via the supply connection flow path 52. The first output flow path 33 is connected to the first output port A via the first output connection flow path 53. The second output flow path 34 is connected to the second output port B via the second output connection flow path 54. The first exhaust flow path 35 is connected to the first exhaust port R1 via the first exhaust connection flow path 55. The second exhaust flow path 36 is connected to the second exhaust port R2 via the second exhaust connection flow path 56.

Therefore, the supply flow path 32, the first output flow path 33, the second output flow path 34, the first exhaust flow path 35, and the second exhaust flow path 36 are communicating flow paths that are connected to each port. Therefore, the base portion 30 has a plurality of communicating flow paths that are connected to each port. And, the supply connection flow path 52, the first output connection flow path 53, the second output connection flow path 54, the first exhaust connection flow path 55, and the second exhaust connection flow path 56 are connecting flow paths that connect each port and each communicating flow path. Therefore, the spacer 50 has a plurality of connecting flow paths that connect each port and each communicating flow path. And, a plurality of connecting flow paths are formed in the spacer block 71.

The fluid from the supply passage 32 is supplied to the supply port P via the supply connection passage 52. When the spool valve 18 is switched to the first position, the fluid supplied to the supply port P is output to the fluid pressure device via the first output port A, the first output connection passage 53, and the first output passage 33. Then, the fluid from the fluid pressure device is discharged to the outside from the second discharge passage 36 via the second output passage 34, the second output connection passage 54, the second output port B, the second discharge port R2, and the second discharge connection passage 56.

On the other hand, when the spool valve 18 is switched to the second position, the fluid supplied to the supply port P is output to the fluid pressure device via the second output port B, the second output connection passage 54, and the second output passage 34. Then, the fluid from the fluid pressure device is discharged to the outside from the first discharge passage 35 via the first output passage 33, the first output connection passage 53, the first output port A, the first discharge port R1, and the first discharge connection passage 55.

The spacer 50 is provided with a pressure reducing valve V3. The pressure reducing valve V3 reduces the pressure of the fluid in the primary flow path of the supply connection flow path 52 and directs it to the secondary flow path of the supply connection flow path 52. The pressure reducing valve V3 reduces the pressure in the primary flow path of the supply connection flow path 52 so that the pressure in the secondary flow path of the supply connection flow path 52 becomes the set pressure.

The relay block 51 has a protruding portion 57. The protruding portion 57 protrudes from the relay block facing surface 51b. The protruding portion 57 is adapted to be able to fit into the fitting recess 44.
The relay block 51 has a pair of relay connector portions 58. Thus, the spacer 50 has the relay connector portions 58. Each relay connector portion 58 has a relay tubular portion 59. Each relay tubular portion 59 is a first end portion of the relay connector portion 58. Furthermore, each relay connector portion 58 has a relay terminal 60. Each relay terminal 60 is a second end portion of the relay connector portion 58.

As shown in FIG. 2, each relay tubular portion 59 protrudes from the tip surface of the protruding portion 57. A relay side lip packing 61 is attached to the outer peripheral surface of each relay tubular portion 59. The relay side lip packing 61 is made of rubber. The relay side lip packing 61 is annular. The pair of relay connector portions 58 are arranged side by side in the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. Therefore, the juxtaposition direction of the pair of relay connector portions 58 coincides with the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2.

Each relay tubular portion 59 is inserted into each base insertion port 45. Therefore, each relay connector portion 58 is inserted into each base insertion port 45. Each base side connector portion 43 is inserted into the inside of each relay tubular portion 59. Then, each relay tubular portion 59 is connected to each base side connector portion 43. In this way, each relay connector portion 58 is connected to each base side connector portion 43 by inserting each relay tubular portion 59 into each base insertion port 45.

The spacer 50 has a pair of protrusions 62. Each protrusion 62 is provided on the protruding portion 57. One of the pair of protrusions 62 protrudes from one of both side surfaces of the protruding portion 57. The other of the pair of protrusions 62 protrudes from the other of both side surfaces of the protruding portion 57. Each protrusion 62 is a square pillar shape that protrudes from the relay block facing surface 51b toward the base portion 30.

Each convex portion 62 is fitted into each recess 46 at the same time that the protruding portion 57 is fitted into the mating recess 44. Then, by fitting each convex portion 62 into each recess 46, each relay tubular portion 59 is inserted into each base insertion port 45 while being aligned with each base insertion port 45. In this way, with each relay connector portion 58 aligned with each base side connector portion 43, the spacer 50 is placed on the base portion 30 while connecting each relay connector portion 58 to each base side connector portion 43.

Each relay side lip packing 61 seals between each relay tubular portion 59 and the base insertion port 45. Therefore, between the outer peripheral surface of each relay tubular portion 59 and the inner peripheral surface of each base insertion port 45, a rubber relay side lip packing 61 is provided to seal between each relay tubular portion 59 and each base insertion port 45.

The relay block 51 has a fitting recess 63. The fitting recess 63 is formed on the mounting surface 51a. The protrusion 25 can be fitted into the fitting recess 63. The fitting recess 63 has a bottom surface 63a and a pair of side surfaces 63b. The bottom surface 63a is flat. The bottom surface 63a extends parallel to the mounting surface 51a. Each side surface 63b extends in a direction perpendicular to the bottom surface 63a. Each side surface 63b extends from the bottom surface 63a. Each side surface 63b is continuous with the mounting surface 51a. Each side surface 63b connects the bottom surface 63a and the mounting surface 51a. Each side surface 63b faces each side surface of the protrusion 25.

The relay block 51 has a pair of relay insertion ports 64. Each relay insertion port 64 opens to the bottom surface 63a of the fitting recess 63. Each relay insertion port 64 has a relay terminal 60 arranged on the inside. Therefore, each relay insertion port 64 has a relay connector portion 58 arranged on the inside. The pair of relay insertion ports 64 are arranged side by side in the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2. Therefore, the juxtaposition direction of the pair of relay insertion ports 64 coincides with the juxtaposition direction of the first pilot solenoid valve V1 and the second pilot solenoid valve V2.

Each solenoid valve side tubular portion 27 is inserted into each relay insertion port 64. Therefore, each solenoid valve side connector portion 26 is inserted into each relay insertion port 64. Each relay terminal 60 is inserted into the inside of each solenoid valve side tubular portion 27. Therefore, each relay connector portion 58 is inserted into the inside of each solenoid valve side tubular portion 27. Then, each solenoid valve side tubular portion 27 is connected to each relay terminal 60. Therefore, each solenoid valve side connector portion 26 is connected to each relay connector portion 58 by inserting each solenoid valve side tubular portion 27 into each relay insertion port 64. In this way, each relay connector portion 58 is electrically connected to each solenoid valve side connector portion 26. Then, each relay connector portion 58 connects each solenoid valve side connector portion 26 and each base side connector portion 43.

The relay block 51 is provided with a pair of recesses 65. Each recess 65 is formed on each side surface 63b. Each recess 65 opens to each side surface 63b and the mounting surface 51a. Each protrusion 29 is fitted into each recess 65. Each protrusion 29 is fitted into each recess 65 at the same time as the protrusion 25 is fitted into the fitting recess 63. Then, by fitting each protrusion 29 into each recess 65, each solenoid valve side cylindrical portion 27 is inserted into each relay insertion port 64 while being aligned with each relay insertion port 64. In this way, the solenoid valve 11 is arranged relative to the spacer 50 while each solenoid valve side connector portion 26 is connected to each relay connector portion 58 with each solenoid valve side connector portion 26 aligned with each relay connector portion 58.

Each solenoid valve side lip packing 28 seals between each solenoid valve side cylindrical portion 27 and each relay insertion port 64. Therefore, between the outer peripheral surface of each solenoid valve side cylindrical portion 27 and the inner peripheral surface of each relay insertion port 64, a rubber solenoid valve side lip packing 28 is provided to seal between each solenoid valve side cylindrical portion 27 and each relay insertion port 64.

The solenoid valve 11 and the spacer 50 are fixed to the base portion 30 by the screw B1. The valve casing 13 of the solenoid valve 11 has a through hole 13h through which the screw B1 passes. The valve casing 13 has two through holes 13h.

Two screw insertion holes 71h are formed in the spacer 50. Each screw insertion hole 71h is formed in the spacer block 71. Therefore, the spacer block 71 has a screw insertion hole 71h. A screw B1 that passes through each through hole 13h is inserted into each screw insertion hole 71h. Therefore, each screw B1 that passes through the valve portion 12 is inserted into each screw insertion hole 71h.

Two female threaded holes 37 are formed in the base portion 30. A screw B1 is screwed into each female threaded hole 37. Each female threaded hole 37 is formed in the mounting surface 31a of the manifold block 31. Then, each screw B1 inserted into each screw insertion hole 71h is screwed into each female threaded hole 37, thereby fixing the solenoid valve 11 and the spacer block 71 to the base portion 30.

<First gasket and second gasket>
The solenoid valve manifold 10 includes a first gasket G1. The first gasket G1 is annular. The first gasket G1 is, for example, in the form of a thin plate. The first gasket G1 is interposed between the valve portion 12 and the spacer block 71. Therefore, the first gasket G1 is interposed between the valve portion 12 and the spacer 50. The first gasket G1 provides a seal between the valve portion 12 and the spacer block 71.

The first gasket G1 suppresses leakage of the fluid flowing between the supply port P and the supply connection flow path 52 from between the valve portion 12 and the spacer 50. The first gasket G1 suppresses leakage of the fluid flowing between the first output port A and the first output connection flow path 53 from between the valve portion 12 and the spacer 50. The first gasket G1 suppresses leakage of the fluid flowing between the second output port B and the second output connection flow path 54 from between the valve portion 12 and the spacer 50. The first gasket G1 suppresses leakage of the fluid flowing between the first exhaust port R1 and the first exhaust connection flow path 55 from between the valve portion 12 and the spacer 50. The first gasket G1 suppresses leakage of the fluid flowing between the second exhaust port R2 and the second exhaust connection flow path 56 from between the valve portion 12 and the spacer 50. Therefore, the first gasket G1 prevents leakage of fluid flowing between each port and each connecting flow path from between the valve portion 12 and the spacer 50.

The solenoid valve manifold 10 is provided with a second gasket G2. The second gasket G2 is annular. The second gasket G2 is, for example, in the form of a thin plate. The second gasket G2 is interposed between the spacer block 71 and the base portion 30. Therefore, the second gasket G2 is interposed between the spacer 50 and the base portion 30. The second gasket G2 provides a seal between the spacer block 71 and the base portion 30.

The second gasket G2 suppresses leakage of the fluid flowing between the supply connection flow path 52 and the supply flow path 32 from between the spacer 50 and the base portion 30. The second gasket G2 suppresses leakage of the fluid flowing between the first output connection flow path 53 and the first output flow path 33 from between the spacer 50 and the base portion 30. The second gasket G2 suppresses leakage of the fluid flowing between the second output connection flow path 54 and the second output flow path 34 from between the spacer 50 and the base portion 30. The second gasket G2 suppresses leakage of the fluid flowing between the first exhaust connection flow path 55 and the first exhaust flow path 35 from between the spacer 50 and the base portion 30. The second gasket G2 suppresses leakage of the fluid flowing between the second exhaust connection flow path 56 and the second exhaust flow path 36 from between the spacer 50 and the base portion 30. Therefore, the second gasket G2 prevents the fluid flowing between each connecting flow path and each communicating flow path from leaking between the spacer 50 and the base portion 30.

<Connection mechanism>
As shown in FIGS. 2 and 3 , the connecting mechanism 80 connects the relay block 51 and the spacer block 71 .

As shown in Figures 4 and 5, the connecting mechanism 80 has a pair of first wall portions 81 and a pair of guide rail portions 82. Each first wall portion 81 protrudes from the first opposing surface 71c. Each first wall portion 81 is in the shape of a long plate. Each first wall portion 81 extends parallel to each other with the long side direction coinciding with the stacking direction Y1. Each first wall portion 81 extends in a direction perpendicular to the first opposing surface 71c.

Each guide rail portion 82 is in the shape of a long plate. Each guide rail portion 82 bends and extends from the tip of each first wall portion 81 in a direction approaching each other. Each guide rail portion 82 extends parallel to each other with the long side direction coinciding with the stacking direction Y1. The length of each guide rail portion 82 in the long side direction is the same as the length of each first wall portion 81 in the long side direction.

As shown in Figures 3 and 6, the connecting mechanism 80 has a guide portion 83, a pair of restricting portions 84, a second wall portion 85, a pair of elastic pieces 86, and a pair of locking portions 87. The guide portion 83 protrudes from the second opposing surface 51c. The guide portion 83 is in the shape of a long plate. The guide portion 83 extends in a direction perpendicular to the second opposing surface 51c with the long side direction coinciding with the stacking direction Y1. The thickness of the guide portion 83 is thinner than the width of the gap between the pair of guide rail portions 82. The guide portion 83 is guided in the stacking direction Y1 between the pair of guide rail portions 82.

Each of the restricting portions 84 is in the shape of a long plate. Each of the restricting portions 84 is bent and extends from the tip of the guide portion 83 in a direction away from each other. Each of the restricting portions 84 extends in a direction perpendicular to the guide portion 83 with the long side direction coinciding with the stacking direction Y1. The length of each of the restricting portions 84 in the long side direction is the same as the length of the guide portion 83 in the long side direction. Each of the restricting portions 84 is disposed between a pair of first wall portions 81.

The second wall portion 85 protrudes from the second opposing surface 51c. The second wall portion 85 is a long plate. The second wall portion 85 extends in a direction perpendicular to the second opposing surface 51c with the long side direction coinciding with the width direction of the relay block 51. The second wall portion 85 is continuous with the end of the guide portion 83 on the side of the mounting surface 51a and the end of the pair of regulating portions 84 on the side of the mounting surface 51a.

Each elastic piece 86 protrudes from the second wall portion 85 toward the relay block opposing surface 51b. Each elastic piece 86 is long plate-shaped. The long side direction of each elastic piece 86 coincides with the stacking direction Y1, and the thickness direction of each elastic piece 86 coincides with the thickness direction of the guide portion 83, and the elastic piece 86 extends in a direction perpendicular to the second wall portion 85. Each elastic piece 86 is elastically deformable so as to bend in a direction toward or away from the guide portion 83, with the base end portion serving as the base point.

Each locking portion 87 bends and extends from the tip of each elastic piece 86 in a direction approaching each other. Each locking portion 87 is hook-shaped. Each locking portion 87 extends from the tip of each elastic piece 86 toward the guide portion 83.

4 and 5, the connecting mechanism 80 has a pair of inclined surfaces 88, a pair of first flat surfaces 89, a pair of engaged surfaces 90, and a pair of second flat surfaces 91. Each inclined surface 88 is a part of the outer surface of each first wall portion 81, and is inclined in a direction away from each other as it moves away from the end of each first wall portion 81 on the mounting surface 71a side. Each first flat surface 89 is a part of the outer surface of each first wall portion 81, and extends in the stacking direction Y1 from the end of each inclined surface 88 on the relay block facing surface 51b side. Each engaged surface 90 is a part of the outer surface of each first wall portion 81, and extends in a direction approaching each other from the end of each first flat surface 89 on the relay block facing surface 51b side. Each engaged surface 90 can be engaged with each engaging portion 87. The distance in the stacking direction Y1 from the end of each first wall portion 81 on the placement surface 71a side to each locked surface 90 is shorter than the distance in the stacking direction Y1 from the second wall portion 85 to each locking portion 87. Each second flat surface 91 extends from the end of each locked surface 90 on the opposite side to the first flat surface 89 toward the spacer block facing surface 71b. Each second flat surface 91 extends parallel to each other. Each second flat surface 91 can pass through the gap between each locking portion 87 and the guide portion 83.

When the relay block 51 and the spacer block 71 are connected by the connecting mechanism 80, first, each locking portion 87 is brought into contact with each inclined surface 88. In this state, the relay block 51 is forcibly moved toward the spacer block opposing surface 71b in the stacking direction Y1 relative to the spacer block 71. Then, each elastic piece 86 is elastically deformed so as to bend in a direction away from the guide portion 83 with the base end as the base point. Then, the relay block 51 is moved relative to the spacer block 71 until each locking portion 87 moves along each inclined surface 88 and overcomes each first flat surface 89. As a result, each elastic piece 86 returns to its original shape before elastic deformation, and each locking portion 87 is locked to each locked surface 90. In this way, the connecting mechanism 80 connects the relay block 51 and the spacer block 71 by a snap-fit structure.

The relay block 51 and the spacer block 71 can move relative to each other in the juxtaposition direction X1 in a direction away from each other until each regulating portion 84 abuts against each guide rail portion 82. In addition, the relay block 51 and the spacer block 71 can move relative to each other in the juxtaposition direction X1 in a direction toward each other until each regulating portion 84 abuts against the first opposing surface 71c.

When the spacer block 71 is fixed to the base portion 30, the relay block 51 can move in the stacking direction Y1 toward the solenoid valve 11 until each locking portion 87 abuts against each locked surface 90. Also, when the spacer block 71 is fixed to the base portion 30, the relay block 51 can move in the stacking direction Y1 toward the base portion 30 until the second wall portion 85 abuts against each first wall portion 81 and each guide rail portion 82.

In this way, the connecting mechanism 80 connects the relay block 51 and the spacer block 71 with a snap-fit structure, allowing movement in the juxtaposition direction X1 and the stacking direction Y1.

<Elastic body>
As shown in Fig. 3, the solenoid valve manifold 10 includes an elastic body 92. Two elastic bodies 92 are provided on the relay block 51. Each elastic body 92 is integrally formed with the relay block 51. Each elastic body 92 is an elongated plate extending obliquely toward the solenoid valve 11 from the bottom surface 63a, which is the surface of the relay block 51 on the solenoid valve 11 side. Each elastic body 92 is formed by cutting and raising a part of the relay block 51. Each elastic body 92 is elastically deformable with the base end portion as the base point. The elastic body 92 biases the relay block 51 toward the base portion 30.

[Operation of the embodiment]
Next, the operation of this embodiment will be described.
2, when assembling the solenoid valve manifold 10, first, the relay block 51 and the spacer block 71 are connected in advance via the connecting mechanism 80. Then, each of the protrusions 62 is fitted into each of the recesses 46, and each of the relay cylindrical portions 59 is inserted into each of the base insertion openings 45 while being aligned with each of the base insertion openings 45. As a result, with each of the relay connector portions 58 aligned with each of the base side connector portions 43, the spacer 50 is disposed relative to the base portion 30 while each of the relay connector portions 58 is connected to each of the base side connector portions 43.

Then, each protrusion 29 is fitted into each recess 65, and each solenoid valve side cylindrical portion 27 is inserted into each relay insertion port 64 while being aligned with each relay insertion port 64. As a result, the solenoid valve 11 is positioned relative to the spacer 50 while each solenoid valve side connector portion 26 is connected to each relay connector portion 58 with each solenoid valve side connector portion 26 aligned with each relay connector portion 58.

As shown in FIG. 7, each screw B1 that penetrates the valve portion 12 is passed through each screw insertion hole 71h and screwed into each female threaded hole 37. At this time, the dimensional tolerances between each base side connector portion 43 and each relay connector portion 58, and the dimensional tolerances between each relay connector portion 58 and each solenoid valve side connector portion 26, etc., are accumulated. This may cause the positions of each screw B1 that penetrates the valve portion 12 and each screw insertion hole 71h to be misaligned in the juxtaposition direction X1.

Even in such a case, the linking mechanism 80 allows the spacer block 71 to move in the parallel arrangement direction X1 relative to the relay block 51. Therefore, the worker adjusts the position of the spacer block 71 so that the positions of the screws B1 and the screw insertion holes 71h are aligned. Then, the screws B1 that have penetrated the valve portion 12 are passed through the screw insertion holes 71h and screwed into the female threaded holes 37. This fixes the solenoid valve 11 and the spacer block 71 to the base portion 30.

In addition, consider a case where the solenoid valve manifold 10 is designed so that the relay block 51 does not interfere with the periphery of each base side connector part 43 in the base part 30 when assembling the solenoid valve manifold 10, and the spacer block 71 can sufficiently press the second gasket G2. At this time, the linking mechanism 80 allows the relay block 51 to move relative to the spacer block 71 in the stacking direction Y1. Therefore, when the solenoid valve 11 is placed relative to the spacer 50, even if there is a dimensional tolerance between the spacer 50 and the solenoid valve 11, the solenoid valve 11 is prevented from interfering with the periphery of each relay connector part 58 in the relay block 51. Therefore, the solenoid valve 11 is sufficiently pressed against the first gasket G1. As a result, the sealing performance of the first gasket G1 and the second gasket G2 is improved.

8 and 9, when the tip of each elastic body 92 is pressed against the solenoid valve 11, the elastic body 92 biases the relay block 51 toward the base portion 30 by the restoring force that attempts to return to the original shape. In this way, since the relay block 51 is biased toward the base portion 30 by each elastic body 92, the relay block 51 is prevented from moving in the stacking direction Y1 between the solenoid valve 11 and the base portion 30 after the assembly of the solenoid valve manifold 10 is completed. As a result, problems such as wear of each relay side lip packing 61 and each solenoid valve side lip packing 28 due to the relay block 51 moving between the solenoid valve 11 and the base portion 30 are easily avoided.

[Effects of the embodiment]
The above embodiment can provide the following effects.
(1) The connecting mechanism 80 connects the relay block 51 and the spacer block 71 in a state in which movement in the juxtaposition direction X1 and the stacking direction Y1 is permitted. When assembling the solenoid valve manifold 10, for example, assume that the positions of the screws B1 penetrating the valve portion 12 and the screw insertion holes 71h are misaligned in the juxtaposition direction X1. Even in this case, the connecting mechanism 80 allows movement of the spacer block 71 in the juxtaposition direction X1 relative to the relay block 51. Therefore, since the position of the spacer block 71 can be adjusted, the positions of the screws B1 and the screw insertion holes 71h can be aligned. As a result, the screws B1 penetrating the valve portion 12 can pass through the screw insertion holes 71h and be screwed into the female screw holes 37, thereby improving the ease of assembly of the solenoid valve manifold 10.

In addition, consider a case where the solenoid valve manifold 10 is designed so that the relay block 51 does not interfere with the periphery of the base side connector part 43 in the base part 30 when assembling the solenoid valve manifold 10, and the spacer block 71 can sufficiently press the second gasket G2. At this time, the linking mechanism 80 allows the relay block 51 to move in the stacking direction Y1 relative to the spacer block 71. Therefore, when the solenoid valve 11 is placed on the spacer 50, even if there is a dimensional tolerance between the spacer 50 and the solenoid valve 11, the solenoid valve 11 is prevented from interfering with the periphery of the relay connector part 58 in the relay block 51. Therefore, the solenoid valve 11 can sufficiently press the first gasket G1. As a result, the sealing property of the first gasket G1 and the second gasket G2 is improved, and the reliability of the solenoid valve manifold 10 is improved. As a result, the reliability of the solenoid valve manifold 10 can be improved while improving the ease of assembly of the solenoid valve manifold 10.

(2) The solenoid valve manifold 10 is provided with an elastic body 92 that biases the relay block 51 toward the base portion 30. Since the relay block 51 is biased toward the base portion 30 by the elastic body 92, the relay block 51 is prevented from moving in the stacking direction Y1 between the solenoid valve 11 and the base portion 30 after the assembly of the solenoid valve manifold 10 is completed. As a result, it is easier to avoid problems such as the relay block 51 moving between the solenoid valve 11 and the base portion 30, causing wear of the relay side lip packings 61 and the solenoid valve side lip packings 28. Therefore, the durability of the relay side lip packings 61 and the solenoid valve side lip packings 28 can be improved. Therefore, the reliability of the solenoid valve manifold 10 can be further improved.

(3) The elastic body 92, which is formed integrally with the relay block 51 and has a long plate shape extending obliquely from the surface of the relay block 51 facing the solenoid valve 11 toward the solenoid valve 11, is suitable as an elastic body that biases the relay block 51 toward the base portion 30. In addition, the number of parts can be reduced compared to the case where a part other than the relay block 51 is provided as an elastic body between the relay block 51 and the base portion 30, for example. Therefore, the assembly of the solenoid valve manifold 10 is simplified, and the ease of assembly of the solenoid valve manifold 10 can be further improved.

(4) The snap-fit structure of the connecting mechanism 80 is suitable as a connecting mechanism that easily connects the relay block 51 and the spacer block 71 while allowing movement in the juxtaposition direction X1 and the stacking direction Y1.

(5) Consider a case where, as in the prior art, for example, gaskets are interposed between the tip surface of the protrusion 57 and the bottom surface 44a of the fitting recess 44, and between the tip surface of the protrusion 25 and the bottom surface 63a of the fitting recess 63. In this case, it is necessary to sufficiently press the gasket, the first gasket G1, and the second gasket G2. For this reason, it is difficult to ensure the sealing properties of the gasket, the first gasket G1, and the second gasket G2. Therefore, the solenoid valve manifold 10 of this embodiment employs the relay side lip packing 61 and the solenoid valve side lip packing 28. Therefore, it is easy to ensure the sealing properties of the first gasket G1 and the second gasket G2. As a result, the reliability of the solenoid valve manifold 10 can be improved.

[Example of change]
The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs.

- In the embodiment, the elastic body 92 does not have to be a long plate that is formed integrally with the relay block 51 and extends obliquely from the surface of the relay block 51 facing the solenoid valve 11 toward the solenoid valve 11. For example, a part other than the relay block 51 may be provided as the elastic body between the relay block 51 and the base portion 30. In this case, the elastic body may be, for example, a spring or a rubber elastic body.

In the embodiment, the solenoid valve manifold 10 does not have to include the elastic body 92 .
In the embodiment, the connecting mechanism 80 is not limited to a snap-fit structure. In short, the connecting mechanism 80 may be configured to connect the relay block 51 and the spacer block 71 in a state in which movement in the juxtaposition direction X1 and the stacking direction Y1 is permitted.

- In the embodiment, the solenoid valve 11 may be a pilot solenoid valve of a single solenoid type. In this case, the solenoid valve 11 has only one solenoid valve side connector portion 26. The relay block 51 has only one relay connector portion 58. And, the base portion 30 has only one base side connector portion 43.

- In the embodiment, the solenoid valve 11 may be, for example, a four-port solenoid valve in which the second exhaust port R2 is omitted. In short, the solenoid valve 11 only needs to have at least one exhaust port. The solenoid valve 11 may also be a three-port solenoid valve having a supply port, an output port, and an exhaust port.

10... solenoid valve manifold, 11... solenoid valve, 12... valve portion, 26... solenoid valve side connector portion, 27... solenoid valve side cylindrical portion, 28... solenoid valve side lip packing, 30... base portion, 32... supply flow path which is a communicating flow path, 33... first output flow path which is a communicating flow path, 34... second output flow path which is a communicating flow path, 35... first exhaust flow path which is a communicating flow path, 36... second exhaust flow path which is a communicating flow path, 37... female thread hole, 40... control portion, 41... circuit board, 43... base side connector portion, 45... base insertion port, 50... spacer, 51... relay block, 52... supply connection flow path which is a connecting flow path, 53... first output connection flow path which is a connecting flow path, 54... second output connection flow path which is a connecting flow path Flow path, 55...first exhaust connection flow path which is a connection flow path, 56...second exhaust connection flow path which is a connection flow path, 58...relay connector part, 59...relay cylindrical part, 61...relay side lip packing, 64...relay insertion port, 71...spacer block, 71h...screw insertion hole, 80...connection mechanism, 92...elastic body, A...first output port which is a port, B...second output port which is a port, B1...screw, G1...first gasket, G2...second gasket, P...supply port which is a port, R1...first exhaust port which is a port, R2...second exhaust port which is a port, S1...first solenoid part which is a solenoid part, S2...second solenoid part which is a solenoid part.

Claims (4)

a solenoid valve having a valve portion and a solenoid portion;
A control unit having a circuit board for controlling the operation of the solenoid valve;
A base portion having the control portion;
a spacer interposed between the solenoid valve and the base portion,
The valve portion has a plurality of ports,
the solenoid valve has a solenoid valve side connector portion electrically connected to the solenoid portion,
The base portion is
a base side connector portion electrically connected to the circuit board;
a plurality of communication flow paths each communicating with each of the ports;
The spacer is
a relay connector portion that connects the solenoid valve side connector portion and the base side connector portion;
a plurality of connection flow paths respectively connecting the ports and the communication flow paths,
a first gasket is interposed between the valve portion and the spacer to suppress leakage of fluid flowing between each of the ports and each of the connection flow paths from between the valve portion and the spacer,
a second gasket is interposed between the spacer and the base portion to suppress leakage of fluid flowing between the connection flow paths and the communication flow paths from between the spacer and the base portion;
the solenoid valve and the spacer are fixed to the base portion by screws,
The spacer has a screw insertion hole through which the screw penetrating the valve portion is inserted,
The base portion has a female screw hole into which the screw is screwed.
The spacer is
a relay block having the relay connector portion;
a spacer block arranged next to the relay block and having the plurality of connection channels and the screw insertion holes formed therein;
a connecting mechanism for connecting the relay block and the spacer block,
the first gasket is interposed between the valve portion and the spacer block,
the second gasket is interposed between the spacer block and the base portion,
A direction in which the relay block and the spacer block are aligned is defined as a parallel arrangement direction,
If the direction in which the solenoid valve, the spacer, and the base portion are stacked is defined as a stacking direction,
The solenoid valve manifold according to claim 1, wherein the connecting mechanism connects the relay block and the spacer block together in a state in which movement in the juxtaposition direction and the stacking direction is permitted. the base portion has a base insertion opening into which the relay connector portion is inserted and in which the base side connector portion is disposed inside the base portion,
the relay connector portion is electrically connected to the solenoid valve side connector portion and has a relay tubular portion into which the base side connector portion is inserted,
the relay connector portion is connected to the base side connector portion by inserting the relay cylindrical portion into the base insertion opening,
a rubber intermediate lip packing is provided between an outer peripheral surface of the intermediate cylindrical portion and an inner peripheral surface of the base insertion opening to seal between the intermediate cylindrical portion and the base insertion opening,
the relay block has an internal relay connector portion disposed therein and a relay insertion port into which the solenoid valve side connector portion is inserted,
the solenoid valve side connector portion has a solenoid valve side cylindrical portion into which the relay connector portion is inserted,
the solenoid valve side connector portion is connected to the relay connector portion by inserting the solenoid valve side cylindrical portion into the relay insertion port,
a rubber solenoid valve side lip packing is provided between an outer circumferential surface of the solenoid valve side cylindrical portion and an inner circumferential surface of the relay insertion port to seal between the solenoid valve side cylindrical portion and the relay insertion port,
2. The solenoid valve manifold according to claim 1, further comprising an elastic body for biasing the relay block toward the base portion. The solenoid valve manifold according to claim 2, characterized in that the elastic body is a long plate-like body that is integrally formed with the relay block and extends obliquely from the surface of the relay block facing the solenoid valve toward the solenoid valve. The solenoid valve manifold according to any one of claims 1 to 3, characterized in that the connecting mechanism connects the relay block and the spacer block with a snap-fit structure while allowing movement in the juxtaposition direction and the stacking direction.

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