JP3766749B2 - solenoid valve - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an electromagnetic valve in which an actuator (here, a valve element is driven inside) is fixed to a piping base via a gasket.
[0002]
[Prior art]
  Conventionally, working fluids used in systems such as hydraulic / pneumatic pressure contain a large amount of dust such as metal powder, which causes troubles such as wear of sliding parts of hydraulic / pneumatic equipment. Therefore, a filter is provided on the piping line in order to remove dust such as metal powder from the working fluid.
[0003]
  In addition, even if a filter is provided on the piping line, dust such as metal powder may be generated from the piping line on the downstream side of the filter, so a filter is provided at the port of the hydraulic / pneumatic equipment via a piping joint. In some cases, dust such as metal powder generated from the piping line is reliably prevented from entering the interior of the hydraulic / pneumatic equipment.
[0004]
[Problems to be solved by the invention]
  However, when considering a solenoid valve with an actuator fixed to the piping base as a hydraulic / pneumatic device, even if a filter is provided on the port of the piping base, dust such as metal powder generated in the piping base will remain in the actuator. And troubles such as wear of the valve body in the actuator cannot be avoided. In particular, the piping base is manufactured by die casting, but there are places where it is turned, the production itself is sometimes performed by the customer, and the piping joint is often attached by screwing. There is a high possibility that dust such as metal powder will be generated inside.
[0005]
  In order to prevent such a situation, a filter may be provided at the connection portion between the actuator flow path and the piping base flow path. It was difficult to provide a filter at the connection part of the pipe-based flow path.
[0006]
  Therefore, the present invention has been made to solve the above-described problems, and while ensuring the function of a gasket that seals the connecting portion between the flow path of the actuator and the flow path of the piping base, It is an object of the present invention to provide an electromagnetic valve capable of providing a filter at a connecting portion of a pipe-based flow path.
[0007]
[Means for Solving the Problems]
  According to a first aspect of the present invention, there is provided a solenoid valve according to a first aspect of the present invention, wherein a gasket for sealing a connecting portion of the actuator flow path and the pipe base flow path is sandwiched between the actuator and the pipe base. In the solenoid valve to be fixed,Filter and opening with numerous perforationsBeen formedHave rigidityplateIn addition,An elastic body surrounding the openingThe gasket comprisingJoiningAnd saidThe plate is fixed in a state of being sandwiched between the actuator and the piping base, and the opening and the connecting portion are overlapped to provide the filter in the connecting portion..
[0008]
[0009]
  MaClaim2The electromagnetic valve according to the present invention is an electromagnetic valve that fixes a gasket that seals a connecting portion of the flow path of the actuator and the flow path of the piping base in a state of being sandwiched between the actuator and the piping base,An opening provided with a rib is formed,An elastic body surrounding the openingA rigid plate joined to the gasket, and a check valve mounted on the rib by assembling a valve body and a main body to a spring placed on the rib. ,Flow of the actuatorOn the roadWhile inserting the check valve, between the actuator and the piping baseThe plateThe check valve is provided in the connecting portion by fixing the pinched state and overlapping the opening and the connecting portion..
[0010]
[0011]
  ThisIn the solenoid valve of the present invention having such a configuration, the actuator flow path and the pipe base flow path communicate with each other by fixing the actuator to the pipe base. In addition, a plate having an opening is sandwiched between the actuator and the piping base, so that the opening of the plate overlaps the connecting portion of the actuator flow path and the piping base flow path. . Further, in the plate, since the gasket is formed by joining the elastic body so as to surround the opening, the connecting portion of the flow path of the actuator and the flow path of the piping base can be sealed from this gasket. .
[0012]
  And since a plate has rigidity, a filter can be provided in an opening part. Therefore, when the filter is provided in the opening of the plate, as described above, the opening of the plate overlaps the connecting portion of the actuator flow path and the piping base flow path. A filter can be provided at the connection portion of the pipe-based flow path. As a result, a filter can be applied to the flow path of the piping base, and dust such as metal powder generated in the piping base does not enter the actuator. Trouble can be avoided.
[0013]
  Further, since the plate has rigidity, a check valve can be mounted on the opening. When the check valve is provided in the opening of the plate, the flow of the actuator is reduced when the opening of the plate overlaps the connecting portion of the actuator flow path and the piping base flow path.On the roadSince the check valve is fitted, the check valve can be provided at the connecting portion of the actuator flow path and the piping base flow path. Thereby, in the solenoid valve provided with the check valve therein, unlike the conventional one, it is not necessary to provide the check valve on the actuator or the piping base itself.
[0014]
  Also, “Actuator flowOn the road“The check valve is inserted” means directly that the flow of the actuator.On the roadThe check valve is inserted so as to be fitted.RoadEven if there is a clearance between the inner side and the outer side of the check valve, as long as the sealing function of the gasket formed by joining the elastic body so as to surround the opening of the plate acts on the clearance, the actuator Flow ofOn the roadA check valve may be gently inserted.
[0015]
  When a check valve placed on the opening of the plate is fitted into the flow path of the pipe base, the plate having the opening on which the check valve is placed is sandwiched between the actuator and the pipe base. Since the check valve mounted on the opening of the plate is also fixed in the pipe base, the pipe base flow path design may be restricted. When a check valve placed in the opening of the plate is fitted into the actuator flow path, the check valve placed in the opening of the plate is present in the actuator and not in the piping base. Therefore, the piping-based flow path design can be freely performed as usual.
[0016]
  In addition, in the plate, a plurality of openings are surrounded as one opening, and the other openings are individually surrounded and joined with an elastic body to form a gasket. In this case, as described above, since the opening of the plate overlaps the connecting portion of the actuator flow path and the piping base flow path, it is the connecting portion of the actuator flow path and the piping base flow path. Those that overlap the openings are sealed in an independent state, and are connected to the actuator flow path and the piping base flow path, and surround the elastic body with a plurality of openings as one opening. Those that overlap are sealed in communication with each other. Thereby, in the solenoid valve having the bypass flow path that communicates between the actuator or the piping base flow path, unlike the conventional one, it is not necessary to provide the bypass flow path in the actuator or the piping base itself.
[0017]
  As the material of the elastic body serving as the gasket, nitrile rubber (NBR), hydrogenated NBR, fluoro rubber, silicon rubber, or the like is used according to the use environment such as the type, nature, and temperature of the working fluid. In addition, the plate material may be any material that can be adapted to the working environment such as the type, nature, and temperature of the working fluid, and can be joined to an elastic body, such as stainless steel, steel, phosphor bronze, copper, plastic, etc. Is used. In addition, regarding the thickness of the plate, the sealing function of the gasket is ensured from the viewpoint of preventing the solenoid valve from becoming large and the plate is easy to handle, and the rigidity for providing the filter, check valve, and bypass channel is ensured. It is desirable that the thickness is as thin as possible.
[0018]
  That is, in the solenoid valve of the present invention, the plate formed with the gasket by surrounding the opening and joining the elastic body is fixed in a state of being sandwiched between the actuator and the piping base, thereby The connecting portion of the piping base flow path is sealed with a gasket, and the filter provided in the opening of the plate can be provided in the connecting portion of the actuator flow path and the piping base flow path. It is possible to ensure the function of a gasket that seals the connecting portion of the pipe-based flow path, and to provide a filter in the connecting portion of the actuator flow path and the pipe-based flow path.
[0019]
  In addition, the filter that can be provided in the connection part of the actuator flow path and the piping base flow path is mainly a high performance filter with a fiber structure, mainly made of dust such as metal powder generated in the piping base. In such a case, since the opening and the filter can be combined with a plurality of perforations provided in the plate, it is easy to manufacture a plate having the opening provided with the filter. Can do.
[0020]
  In addition, by fixing the plate on which the gasket is formed by surrounding the opening and joining the elastic body in a state of being sandwiched between the actuator and the piping base, the actuator flow path and the piping base flow path are connected. The part can be sealed with a gasket, and a check valve mounted on the opening of the plate can be provided at the connection between the actuator flow path and the pipe base flow path. While ensuring the function of the gasket that seals the connecting portion of the path, a check valve can be provided in the connecting portion of the actuator flow path and the piping base flow path.
[0021]
  Also, instead of providing a check valve on the actuator or the piping base itself, the check valve mounted on the opening of the plate is connected to the actuator flow.On the roadSince it is inserted, it is possible to easily replace the check valve by simply replacing the plate that is fixed between the actuator and the piping base. Simply replace the check valve with a new one. Therefore, it is not necessary to replace the actuator or piping base.
[0022]
  In addition, a plurality of openings are surrounded as a single opening, and the other openings are individually enclosed and elastically joined to each other to form a gasket. Are fixed in a state of being sandwiched between the pipe base and the connecting part of the flow path of the actuator and the flow path of the pipe base, and those overlapping the other openings are sealed in an independent state, The connecting portion of the actuator flow path and the piping base flow path, which overlaps with the plurality of openings as one opening and surrounds the elastic body, is sealed in a state of communicating with each other. Ensuring the gasket function to seal the connection between the flow path and the piping base flow path, and connecting the actuator flow path to the piping base flow path Between the actuator or piping based flow paths may be provided a bypass passage for communicating the minute.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 9 is a perspective view of the electromagnetic valve 1 assembled by fixing the actuator 11 to the manifold base 12 that is a piping base, and shows a method of attaching the actuator 11 to the manifold base 12. The actuator 11 is attached to the manifold base 12 by inserting the attachment screw 13 through the attachment hole 14 of the actuator 11 and then screwing it into the attachment hole 15 of the manifold base 12 as shown in FIG. Reference numeral 16 denotes a flow path of the manifold base 12.
[0024]
  At this time, in the first embodiment, the plate 20 </ b> A is fixed between the actuator 11 and the manifold base 12. Therefore, the plate 20A will be described based on the perspective view of FIG. The plate 20A is made of a stainless steel plate 21 having a thickness of 0.2 mm to 0.7 mm, and is provided with openings 22A and 22B and attachment holes 23. The opening 22A of the plate 20A is formed with an opening in the stainless steel plate 21. On the other hand, the opening 22B of the plate 20A is formed with a large number of perforations having a diameter of about 0.3 mm. In FIG. 1, a part of the perforations forming the opening 22B of the plate 20A is omitted.
[0025]
  The gasket 24 is joined to the plate 20A by vulcanizing and bonding NBR, which is an elastic material, so as to surround the openings 22A and 22B of the plate 20A. The gasket 24 has a thickness of 0.3 mm to 0.5 mm and a width of about 0.5 mm, and is bonded to both surfaces of the plate 20A. Further, the cross section of the gasket 24 has a shape similar to a rectangle (see FIG. 4).
[0026]
  Further, convex portions 25 are provided at the corners of the plate 20A by vulcanizing and bonding NBR of a rubber material which is an elastic body. The convex portion 25 is press-fitted into a concave portion (not shown) provided in the actuator 11, whereby the plate 20 </ b> A can be attached to the actuator 11. When attaching to the plate 12, the plate 20A can be easily handled, and the gasket 24 can be positioned via the plate 20A. At this time, since the mounting hole 23 of the plate 20A overlaps with the mounting hole 14 of the actuator 11, the mounting screw 13 inserted through the mounting hole 14 of the actuator 11 also passes through the mounting hole 23 of the plate 20A. It will be screwed into the mounting hole 15 of the base 12.
[0027]
  Further, when the actuator 11 is attached to the manifold base 12, there is a connecting portion between the flow path 17 (see FIG. 3) of the actuator 11 and the flow path 16 of the manifold base 12 in the openings 22 </ b> A and 22 </ b> B of the plate 20 </ b> A. Therefore, the gasket 24 joined to both surfaces of the plate 20A so as to surround the openings 22A and 22B can surround the connecting portion of the flow path 17 (see FIG. 3) of the actuator 11 and the flow path 16 of the manifold base 12. .
[0028]
  Therefore, in the first embodiment, the gasket 24 bonded to both surfaces of the plate 20A is positioned by the press-fitting of the convex portion 25 of the plate 20A into the concave portion (not shown) of the actuator 11, and the actuator 11 is connected to the manifold. It is fixed in a state of being sandwiched between the actuator 11 and the manifold base 12 with a tightening torque of the mounting screw 13 for mounting on the base 12.
[0029]
  At this time, for the opening 22B of the plate 20A where the flow path 17 of the actuator 11 (see FIG. 3) and the connection portion of the flow path 16 of the manifold base 12 exist, the opening 22B of the plate 20A itself has a diameter of about 0.3 mm. Therefore, the filter functions as a filter that removes dust having a diameter of 0.3 mm or more.
[0030]
  In the second embodiment, the plate 20 </ b> B shown in FIG. 2 is fixed between the actuator 11 and the manifold base 12. Accordingly, the plate 20B will be described based on the exploded view of FIG. 2, but here, only the differences from the plate 20A of the first embodiment will be described.
[0031]
  Each of the openings 22A and 22B of the plate 20B is formed with an opening opened in the stainless steel plate 21, and a rib 36 is provided in the opening 22A. The spring 34 is placed on the rib 36 of the opening 22A, and the valve body 33 and the main body 31 are assembled to provide a check valve on the opening 22A. At this time, as shown in FIG. 4, the main body 31 is placed on the gasket 24 of the plate 20B, and the boss 32 of the main body 31 is inserted into the mounting hole 35 provided in the gasket 24 of the plate 20B. Thus, the positioning is performed.
[0032]
  In the second embodiment, when the actuator 11 is attached to the manifold base 12, as shown in FIG. 3, the check valve main body 31 provided on the opening 22A of the plate 20B 11, the gasket 24 of the plate 20 </ b> B located under the main body 31 can be pressed down by receiving a reaction force from the inner wall of the flow path 17 of the actuator 11. Thereby, the connection part of the flow path 17 of the actuator 11 in which this check valve was inserted and the flow path 16 of the manifold base 12 can be sealed. Further, even if the check valve body 31 is gently inserted into the flow path 17 of the actuator 11, the gasket 24 is easily elastically deformed as shown in FIG. 11, the gasket 24 is pushed into the clearance generated inside the flow path 17, so that the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 in which the check valve is inserted is sealed. be able to.
[0033]
  In the third embodiment, the plate 20C shown in FIG. 8 is fixed between the actuator 11 and the manifold base 12 in a sandwiched state. Therefore, the plate 20C will be described based on the perspective view of FIG. 8, but here, only the points different from the plate 20A of the first embodiment will be described.
[0034]
  Each of the openings 22A and 22B of the plate 20B is formed with an opening opened in the stainless steel plate 21. And about the opening part 22B of the plate 20C, while vulcanizing and bonding NBR of the rubber material which is an elastic body so as to surround the three opening parts 22B independently, the opening part 22A of the plate 20C has two opening parts. The gasket 24 is joined to the plate 20C by vulcanizing and bonding NBR, which is an elastic material, so as to integrally surround 22A. At this time, an exposed portion 40 is formed between the two openings 22 </ b> A, which communicates with each other's open mouth and exposes the surface of the stainless steel plate 21.
[0035]
  In the third embodiment, the exposed portions 40 provided on both surfaces of the plate 20C are such that when the actuator 11 is attached to the manifold base 12, the gasket 24 joined to both surfaces of the plate 20C is connected to the actuator 11 and the manifold base. By being pressed to 12, the two openings 22A can be communicated with each other and a bypass flow path sealed from the outside can be formed.
[0036]
  The opening 22B of the plate 20C is smaller than the opening 22B of the plate 20A of the first embodiment, but when the actuator 11 is attached to the manifold base 12 in the same manner as in the first embodiment. , There is a connecting portion between the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12.
[0037]
  As described above in detail, in the solenoid valve 1 of the present embodiment, the actuator 11 is fixed to the manifold base 12, whereby the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 communicate with each other. Further, between the actuator 11 and the manifold base 12, one of the plates 20A, 20B, and 20C having the openings 22A and 22B is fixed in a sandwiched state, whereby the flow path 17 of the actuator 11 is fixed. And the openings 22A, 22B of any one of the plates 20A, 20B, 20C overlap the connecting portion of the flow path 16 of the manifold base 12. Further, in the plates 20A, 20B, and 20C, the gasket 24 is formed by joining the rubber NBR that is an elastic body so as to surround the openings 22A and 22B. The connecting portion of the flow path 17 and the flow path 16 of the manifold base 12 can be sealed.
[0038]
  Since the plate 20A has rigidity, a filter can be provided in the opening 22B (see FIG. 1). Accordingly, when the filter is provided in the opening 22B of the plate 20A as in the first embodiment, as described above, the opening 22B of the plate 20A is connected to the flow path 17 of the actuator 11 and the manifold base 12. Therefore, a filter can be provided in the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12. Accordingly, a filter can be applied to the flow path 16 of the manifold base 12 and dust such as metal powder generated in the manifold base 12 does not enter the actuator 11. Troubles such as body wear can be avoided.
[0039]
  Further, since the plate 20B has rigidity, a check valve can be mounted on the opening 22A (see FIG. 2). As in the second embodiment, when the check valve is provided in the opening 22A of the plate 20B by assembling the spring 34, the valve body 33, and the main body 31, the opening of the plate 20B. When 22A overlaps the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12, the check valve applied to the flow path 17 of the actuator 11 is inserted as shown in FIG. A check valve can be provided at the connecting portion of the flow path 17 and the flow path 16 of the manifold base 12. Thereby, in the solenoid valve provided with the check valve therein, unlike the conventional one, it is not necessary to provide the check valve in the actuator 11 or the manifold base 12 itself.
[0040]
  Further, as in the third embodiment, in the plate 20C, the two openings 22A are enclosed as one opening, and further, the three openings 22B are individually enclosed. However, when the gasket 24 is formed by joining the rubber NBR which is an elastic body (see FIG. 8), the openings 22A and 22B of the plate 20C are connected to the flow path 17 of the actuator 11 as described above. Since it overlaps with the connecting portion of the flow path 16 of the manifold base 12, the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 that overlaps the three openings 22B are in an independent state. While being sealed, it is a connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 and has two openings. 2A which overlap those meditating surrounds the NBR rubber material is an elastic body as one opening is sealed in a state of communication with each other. Thereby, in the solenoid valve having the bypass flow path for communicating between the flow path 16 of the actuator 11 or the manifold base 12, unlike the conventional one, it is not necessary to provide the bypass flow path in the actuator 11 or the manifold base 12 itself. .
[0041]
  That is, in the electromagnetic valve 1 of the present embodiment, the plate 20A in which the gasket 24 is formed by enclosing the openings 22A and 22B and joining the rubber NBR which is an elastic body is formed between the actuator 11 and the manifold base 12. By fixing in a state sandwiched between them, the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is sealed with the gasket 24, and the filter provided in the opening 22B of the plate 20C is attached to the actuator 11. And the function of the gasket 24 that seals the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is ensured. , The flow path 17 of the actuator 11 and the manifold It can be provided a filter connecting portion of the flow path 16 of the over scan 12.
[0042]
  Further, the filter that can be provided in the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is mainly made of dust such as metal powder generated in the manifold base 12 and has a fiber structure. Even in such a case, the opening 22B and the filter can be used together with a plurality of perforations provided in the plate 20A, so that the opening 22B provided with the filter is not required. It is possible to easily manufacture the plate 20A having the same.
[0043]
  Further, by fixing the plate 20B on which the gasket 24 is formed by enclosing the openings 22A and 22B and joining the rubber NBR, which is an elastic body, sandwiched between the actuator 11 and the manifold base 12. The connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is sealed with the gasket 24, and the check valve mounted on the opening 22A of the plate 20B is connected to the flow path 17 of the actuator 11 and the manifold base. 12 can be provided at the connection portion of the 12 flow paths 16, so that the function of the gasket 24 that seals the connection portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is secured, and the flow path 17 of the actuator 11 And reverse to the connecting part of the flow path 16 of the manifold base 12 It can be provided with a valve.
[0044]
  In addition, a check valve is not provided in the actuator 11 or the manifold base 12 itself, but a check valve mounted on the opening 22A of the plate 20B is inserted into the flow path 17 of the actuator 11, so that the actuator 11 and Only by exchanging the plate 20B fixed between the manifold bases 12 can be easily replaced with a new check valve, and the actuator 11 or There is no need to replace the manifold base 12.
[0045]
  Further, the two openings 22A are surrounded as one opening, and the three openings 22B are each surrounded by a rubber NBR which is an elastic body while being individually surrounded. The plate 20C on which the gasket 24 is formed is fixed in a state of being sandwiched between the actuator 11 and the manifold base 12, so that three openings are formed at the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12. The portion overlapping the portion 22B is sealed in an independent state, and is further an elastic body that is a connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 with the two openings 22A as one opening. Since those that overlap the NBR surrounding the rubber material are sealed in a state of communication with each other The function of the gasket 24 that seals the connecting portion between the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is secured, and the actuator 11 or the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 is connected to the connecting portion. A bypass channel that allows communication between the channels 16 of the manifold base 12 can be provided.
[0046]
  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning.
  For example, in the plate 20A of the first embodiment, the opening 22B and the filter are combined with a plurality of perforations, but the opening 22B is formed with the opening opened in the stainless steel plate 21, and the opening 22B is formed in the opening 22B. A high-performance filter having a fiber structure may be provided. In this way, it is possible to remove smaller metal fine powders such as metal powders.
[0047]
  Further, in the plate 20B of the second embodiment, when the actuator 11 is attached to the manifold base 12, as shown in FIG. 3, the main body of the check valve provided on the opening 22A of the plate 20B. 31 is inserted into and fitted into the flow path 17 of the actuator 11, but may be inserted into and fitted into the flow path 16 of the manifold base 12. However, by receiving a reaction force from the inner wall of the flow path 16 of the manifold base 12, the gasket 24 of the plate 20B located on the main body 31 is pressed.
[0048]
  In this way, when the check valve mounted on the opening 22A of the plate 20B is fitted into the flow path 16 of the manifold base 12, the plate having the opening 22A on which the check valve is mounted. Since the position where 20B is sandwiched between the actuator 11 and the manifold base 12 is fixed, the position where the check valve mounted on the opening 22A of the plate 20B exists in the manifold base 12 is also fixed. Although the flow path design of the manifold base 12 may be restricted, a check valve mounted on the opening 22A of the plate 20B is inserted into the flow path 17 of the actuator 11 as in the second embodiment. In this case (see FIG. 3), the check valve mounted on the opening 22A of the plate 20B exists in the actuator 11 and does not exist in the manifold base 12. The flow path design of manifold base 12 can be freely conventional.
[0049]
  In the second embodiment, a check valve main body 31 provided in the opening 22A is placed on a gasket 24 having a cross section similar to a rectangle, and the actuator 11 is connected to a manifold. When attached to the base 12, the check valve body 31 is inserted and fitted into the flow path 17 of the actuator 11 and receives a reaction force from the inner wall of the flow path 17 of the actuator 11. Since the gasket 24 of the plate 20B located under the valve body 31 can be pressed, the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12 into which the check valve is inserted is sealed. (See FIGS. 4 and 5).
[0050]
  However, as shown in FIG. 6, a check valve main body 31 provided in the opening 22 </ b> A may be positioned beside the gasket 24 having a convex cross section. Even in such a case, as shown in FIG. 7, the gasket 24 is easily elastically deformed, and even if the check valve body 31 is gently inserted into the flow path 17 of the actuator 11, Since the gasket 24 is pushed out into the clearance generated between the outside of the valve body 31 and the inside of the flow path 17 of the actuator 11, the flow of the flow path 17 of the actuator 11 into which the check valve is inserted and the flow of the manifold base 12. The connecting portion of the path 16 can be sealed.
[0051]
  Further, in the third embodiment, the exposed portion 40 where the surface of the stainless steel plate 21 is exposed is provided on both surfaces of the plate 20C, so that the actuator is connected to the connecting portion of the flow path 17 of the actuator 11 and the flow path 16 of the manifold base 12. 11 or bypass passages for communicating between the passages 16 of the manifold base 12 are provided on both surfaces of the plate 20C, but by providing an exposed portion 40 where the surface of the stainless steel plate 21 is exposed on one surface of the plate 20C, Such a bypass channel may be provided only on one side of the plate 20C. Further, since the exposed portion 40 is a prototype serving as a base of a bypass flow path that communicates between the flow paths 16 of the actuator 11 or the manifold base 12, it is not always necessary to expose the surface of the stainless steel plate 21.
[0052]
  In the present embodiment, the manifold base 12 is used as the piping base. However, a single base may be used.
[0053]
【The invention's effect】
  In the electromagnetic valve according to the present invention, the plate formed with the gasket by surrounding the opening and joining the elastic body is fixed in a state of being sandwiched between the actuator and the piping base, so that the flow path of the actuator and the piping base are fixed. The connecting portion of the flow path of the actuator can be sealed with a gasket, and the filter provided in the opening of the plate can be provided in the connecting portion of the flow path of the actuator and the flow path of the piping base. It is possible to secure the function of the gasket that seals the connecting portion of the flow path, and to provide a filter at the connecting portion of the flow path of the actuator and the flow path of the piping base.
[0054]
  In addition, the filter that can be provided in the connection part of the actuator flow path and the piping base flow path is mainly a high performance filter with a fiber structure, mainly made of dust such as metal powder generated in the piping base. In such a case, since the opening and the filter can be combined with a plurality of perforations provided in the plate, it is easy to manufacture a plate having the opening provided with the filter. Can do.
[0055]
  In addition, by fixing the plate on which the gasket is formed by surrounding the opening and joining the elastic body in a state of being sandwiched between the actuator and the piping base, the actuator flow path and the piping base flow path are connected. The part can be sealed with a gasket, and a check valve mounted on the opening of the plate can be provided at the connection between the actuator flow path and the pipe base flow path. While ensuring the function of the gasket that seals the connecting portion of the path, a check valve can be provided in the connecting portion of the actuator flow path and the piping base flow path.
[0056]
  Also, instead of providing a check valve on the actuator or the piping base itself, the check valve mounted on the opening of the plate is connected to the actuator flow.On the roadSince it is inserted, it is possible to easily replace the check valve by simply replacing the plate that is fixed between the actuator and the piping base. Simply replace the check valve with a new one. No need to replace actuator or piping base.
[0057]
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a plate provided with a filter in an opening.
FIG. 2 is an exploded view showing an example of a plate on which a check valve is mounted in an opening.
FIG. 3 is an electromagnetic valve in which a plate having a check valve mounted in an opening is fixed in a state of being sandwiched between an actuator and a manifold base, and the check valve mounted in the opening of the plate is an actuator It is sectional drawing of what was inserted by this flow path.
FIG. 4 is a part of a plate having a check valve mounted on the opening, formed by surrounding the opening and joining an elastic body, and a reverse mounted on the opening. It is sectional drawing which showed the positional relationship of a stop valve.
FIG. 5 is a part of a solenoid valve in which a plate having a check valve mounted on an opening is fixed between the actuator and the manifold base, and the elastic body is surrounded by surrounding the opening of the plate. It is sectional drawing which showed the state which the gasket formed by joining pressure-contacts with the non-return valve mounted in the actuator, the manifold base, and the opening part of the plate.
FIG. 6 is a part of a plate having a check valve mounted on the opening, the gasket formed by surrounding the opening and joining an elastic body, and the reverse mounted on the opening. It is sectional drawing which showed the positional relationship of a stop valve.
FIG. 7 is a part of a solenoid valve in which a plate having a check valve mounted in an opening is fixed between the actuator and the manifold base, and the elastic body is surrounded by surrounding the opening of the plate. It is sectional drawing which showed the state which the gasket formed by joining pressure-contacts with the non-return valve mounted in the actuator, the manifold base, and the opening part of the plate.
FIG. 8 shows a plate in which a gasket is formed by joining an elastic body while encircling them as a single opening for a plurality of openings, and encircling each other independently. It is the perspective view which showed an example.
FIG. 9 is a perspective view of an electromagnetic valve assembled by fixing an actuator to a manifold base, and shows a method of attaching the actuator to the manifold base.
[Explanation of symbols]
  1 Solenoid valve
11 Actuator
12 Piping base
16 Piping base flow path
17 Actuator flow path
20A, 20B, 20C plate
22A, 22B opening
24 Gasket

Claims (2)

Sandwiched between the actuator flow path (11) (17) and said actuator gasket (24) to seal the connecting portion of the flow path of the pipe base (12) (16) (11) and the pipe base (12) In the solenoid valve (1) fixed in the state,
The gasket (24) made of an elastic body is joined to a plate (20A) having rigidity, in which a filter and opening (22B) is formed with a large number of perforations, surrounding the opening (22B), and the plate ( 20A) is fixed in a state of being sandwiched between the actuator (11) and the pipe base (12) , and the opening (22B) and the connecting portion are overlapped to thereby attach the filter to the connecting portion. A solenoid valve (1) characterized by being provided. A gasket (24) for sealing the connecting portion of the flow path (17) of the actuator (11) and the flow path (16) of the pipe base (12) is sandwiched between the actuator (11) and the pipe base (12). In the solenoid valve (1) fixed in the state ,
A plate (20B) having a rigidity formed with an opening (22A) provided with a rib (36), and surrounding the opening (22A) and joined with the gasket (24) made of an elastic body;
A check valve mounted on the rib (36) by assembling the valve body (33) and the main body (31) to a spring (34) placed on the rib (36); And
While the check valve is inserted into the flow path (17) of the actuator (11), the plate (20B) is fixed between the actuator (11) and the pipe base (12). The solenoid valve (1) , wherein the check valve is provided in the connecting portion by overlapping the opening (22A) and the connecting portion .

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