JP2013053647A - Valve housing for control valve, and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a valve housing for a control valve: in which a complex structural channel, a seal groove, a joint, a valve chamber, a valve seat and the like are not required to be cut; which does not need to be subjected to surface processing and sealing treatment; which has excellent airtightness, is not deteriorated due to aging, and also has excellent heat resistance and corrosivity; and which can reduce processing time and the cost by a simple process.SOLUTION: The valve housing for the control valve includes: a plurality of channel forming members 32 and 34; a valve seat member 14 constituting the valve seat 24; and a valve casing unit constituted by the valve seat member 14 being sandwiched by the plurality of channel forming members 32 and 34.

Description

  The present invention relates to a valve housing for a control valve used for a control valve such as a switching valve such as a two-way valve and a three-way valve, an on-off valve, and a flow control valve, and a method for manufacturing the valve housing for the control valve.

Conventionally, a composite valve is used in which a plurality of control valves are provided in one valve housing, and the flow paths are switched by opening and closing each control valve.
For example, as described in Patent Document 1 (Japanese Patent Laid-Open No. 11-13920), the fluid control units of a plurality of solenoid valves are attached to a plurality of mounting holes provided in the housing, and each solenoid valve is opened and closed. An electromagnetic valve that switches the flow path has been proposed.

  However, when the valve housing is made by die casting such as forging or aluminum as described above, the valve seat portion of the valve housing needs to be highly accurate, so it is necessary to perform secondary processing by cutting the valve seat portion. There is.

Since secondary processing is required in this way, it takes time to manufacture the valve housing, and the cost is high.
Further, since the valve housing is manufactured by casting or die casting, the weight of the valve housing is also increased.

For this reason, in patent document 2 (Unexamined-Japanese-Patent No. 2007-107692), producing the valve main body formed by press work is disclosed.
That is, FIG. 19 is a schematic cross-sectional view showing a solenoid valve including the valve body of Patent Document 2. The electromagnetic valve 200 includes an electromagnetic valve main body 202, and the electromagnetic valve main body 202 includes a valve seat member 204 and a pipe connection member 206.

  The valve seat member 204 is substantially cup-shaped, and forms the valve chamber 208 and the valve seat 210. On the other hand, the pipe connecting member 206 is a pair for connecting to the base portion 212 and the pipe. The connecting portions 214 are joined to each other.

  Then, the valve seat member 204 and the pipe connecting member 206 composed of the base portion 212 and the connecting portion 214 are pressed with a thin stainless steel plate, and then joined together to form the electromagnetic valve main body 202. Yes.

  Patent Document 3 (Japanese Utility Model Publication No. 49-7961) discloses that a valve body and a passage are formed by laminating four plate members on a valve body.

Japanese Patent Laid-Open No. 11-13920 JP 2007-107692 A Japanese Utility Model Publication No. 49-7961

  However, in the electromagnetic valve 200 of Patent Document 2, as shown by the arrow in FIG. 19, fluid leaks from the valve seat member 204 and the pipe connection member 206 to the outlet side (so-called “back leakage”). In order to prevent this, a seal member 218 is provided between the valve seat member 204 and the pipe connection member 206. However, when the seal member 218 is damaged due to deterioration over time, the valve seat member 204 and the pipe connection member 206 If there is a variation in the dimensions of these parts, such as the depth dimension between them, the seal member 218 cannot be crushed and back leakage will occur.

The electromagnetic valve 200 of Patent Document 2 relates to a single electromagnetic valve, and it is impossible to configure a composite valve by connecting a plurality of electromagnetic valve main bodies 202.
As shown in FIGS. 20A and 20B, in the pipe connecting member 206, if the joint part 220 is added, the connection is possible. However, since the joint part 220 is necessary, the number of parts increases. End up. Further, the press mold of the pipe connection member 206 having such a complicated structure is impossible in mass production.

  Moreover, in patent document 3, in order to form a valve seat and a channel | path by laminating | stacking four plate members on a valve main body, the number of parts also increases, there exists a problem in workability and assembly property, mass production is difficult, Cost will be high.

Moreover, Patent Document 3 relates to a single valve, and it is impossible to configure a composite valve by connecting a plurality of valve bodies.
In view of such a current situation, the present invention does not require secondary processing by cutting the valve seat portion or the like, unlike the conventional valve die for control valve made of aluminum die-cast, and is simple and complicated. For control valves that can form a simple flow path, and have excellent airtightness, no deterioration due to secular change, excellent reliability, excellent workability and assembly, mass production, and cost reduction An object of the present invention is to provide a valve housing and a method for manufacturing a valve housing for a control valve.

  Furthermore, in the present invention, even when a valve housing unit of a composite valve is formed by integrally molding a plurality of valve casing units, it is easy to combine, the number of parts is small, and the flow path can be easily changed. Valve housing for control valves that does not cause so-called “back leakage”, has excellent air tightness, does not deteriorate due to secular change, has excellent reliability, has excellent workability and ease of assembly, can be mass-produced, and can reduce costs And it aims at providing the manufacturing method of the valve housing for control valves.

The present invention has been invented in order to achieve the above-described problems and objects in the prior art, and the valve housing for a control valve of the present invention includes:
A plurality of flow path forming members;
A valve seat member constituting the valve seat;
And a valve casing unit configured by sandwiching the valve seat member with the plurality of flow path forming members.

The method for manufacturing a valve housing for a control valve according to the present invention is characterized in that a valve casing unit is formed by sandwiching a valve seat member between a plurality of flow path forming members.
Since the valve casing unit can be configured by sandwiching the valve seat member between the plurality of flow path forming members in this way, a complicated configuration such as a conventional valve body for a control valve made of aluminum die cast is used. It is not necessary to perform secondary processing by cutting the flow channel, the seal groove portion, the joint portion, the valve chamber, the valve seat, and the like, and a complicated flow channel can be configured with a simple process.

  In addition, the valve seat member can be sandwiched between a plurality of flow path forming members, and the members can be fixed by a known joining method such as welding, brazing, welding, adhesion, or pressure bonding. Compared to sealing, it does not cause so-called “back leakage”, has excellent airtightness, does not deteriorate due to secular change, has excellent reliability, has excellent workability and assemblability, and can be mass-produced. Can also be reduced.

  Also, when a valve housing of a composite valve is configured by integrally molding a plurality of valve casing units to form a composite valve, it is easy to make a composite, and the number of parts is small. For example, the valve housing can be formed by metal press molding. The flow path can be easily changed and the cost can be reduced.

  Furthermore, by creating the press mold separately for each block of the flow path, when changing the flow path, it can be easily changed by replacing the block, and the degree of design freedom can be increased. .

In the control valve valve housing according to the present invention, the plurality of flow path forming members are configured to sandwich the valve seat member from a direction perpendicular to the moving direction of the valve body.
In this way, a plurality of flow path forming members only need to sandwich the valve seat member from a direction perpendicular to the moving direction of the valve body, so that a complicated flow path can be configured with a simple process. Even when the valve casing unit is integrally molded so as to form a plurality of valve housings to constitute a valve housing of a composite valve, it is easy to make a composite and the number of parts is small.For example, a valve housing can be formed by metal press molding. Changing the flow path is easy and the cost can be reduced.
In the control valve valve housing according to the present invention, the valve seat member includes a substantially cup-shaped valve seat member main body portion that forms a valve chamber.

Thus, since the valve seat member includes a substantially cup-shaped valve seat member main body portion that forms the valve chamber, the valve chamber and the valve seat can be configured, and the valve seat member main body portion can be divided into a plurality of flow paths. It is easy to hold between the forming members, has excellent assemblability, can be mass-produced, and can reduce costs.
In the control valve valve housing according to the present invention, the plurality of flow path forming members are configured to sandwich the valve seat member from the moving direction of the valve body.

  As described above, since it is only necessary to sandwich the valve seat member from the moving direction of the valve body by the plurality of flow path forming members, a complicated flow path can be configured with a simple process, and a plurality of valve casing units can be formed. Even when forming a valve housing of a composite valve by integrally molding to form a series, it is easy to make a composite, and the number of parts is small. For example, the valve housing can be formed by metal press molding, so the flow path can be easily changed. The cost can be reduced.

  The valve housing for a control valve according to the present invention is characterized in that all or at least one of the flow path forming member and the valve seat member constituting the valve casing unit is manufactured by metal press molding. To do.

  Since the members constituting the valve casing unit are produced by metal press molding in this way, it is not necessary to cut the complicatedly configured flow paths, seal grooves, joints, valve chambers, valve seats, etc. It is possible to form a flow path having a complicated structure at a low cost.

  The control valve valve housing according to the present invention is characterized in that the control valve valve housing described in any one of the foregoing is integrally formed so as to be connected in series and the flow path is switched.

  With this configuration, even when a valve housing unit of a composite valve is formed by integrally molding a plurality of valve casing units to form a composite valve, it is easy to make a composite and the number of parts is small. Since the valve housing can be formed, the flow path can be easily changed and the cost can be reduced.

The control valve according to the present invention is characterized in that a control unit including a valve body of the control valve is mounted on the control valve valve housing described above.
The method for manufacturing a valve housing for a control valve according to the present invention is characterized in that a valve casing unit is formed by sandwiching a valve seat member between a plurality of flow path forming members.

  According to the present invention, since the valve casing unit can be configured by sandwiching the valve seat member with a plurality of flow path forming members, it is complicated like a conventional valve body for a control valve made of aluminum die-casting. It is not necessary to perform secondary processing by cutting a flow path, a seal groove part, a joint part, a valve chamber, a valve seat, and the like with a simple structure, and a complicated flow path can be configured with a simple process.

  In addition, the valve seat member can be sandwiched between a plurality of flow path forming members, and the members can be fixed by a known joining method such as welding, brazing, welding, adhesion, or pressure bonding. Compared to sealing, it does not cause so-called “back leakage”, has excellent airtightness, does not deteriorate due to secular change, has excellent reliability, has excellent workability and assemblability, and can be mass-produced. Can also be reduced.

  Also, when a valve housing of a composite valve is configured by integrally molding a plurality of valve casing units to form a composite valve, it is easy to make a composite, and the number of parts is small. For example, the valve housing can be formed by metal press molding. The flow path can be easily changed and the cost can be reduced.

  Furthermore, by creating the press mold separately for each block of the flow path, when changing the flow path, it can be easily changed by replacing the block, and the degree of design freedom can be increased. .

FIG. 1 is a cross-sectional view schematically showing a method for manufacturing a valve casing unit of the present invention. FIG. 2 is a cross-sectional view schematically showing a control valve manufacturing method using the control valve valve housing of the present invention. FIG. 3 is a cross-sectional view schematically showing a method for manufacturing a control valve using the valve housing for a control valve of the present invention. FIG. 4 is a cross-sectional view of a control valve using the valve housing for a control valve of the present invention. FIG. 5 is a top view of the control valve of FIG. FIG. 6 is an arrow view of the control valve in FIG. 4 in the A direction. FIG. 7 is a sectional view of a composite valve using the valve housing for a control valve of the present invention. FIG. 8 is a top view of the composite valve of FIG. FIG. 9 is a schematic view showing a mold used when the valve housing 10 of the composite valve 40 is formed by integrally forming a plurality of valve casing units 36 as shown in FIGS. 7 to 8. FIG. 10 is a schematic view showing a block of the mold of FIG. FIG. 11 is a schematic view showing another mold block. FIG. 12 is a schematic view showing another mold used when the valve housing 10 of the composite valve 40 is formed by integrally molding a plurality of valve casing units 36. FIG. 13 is a schematic view showing another mold used when the valve housing 10 of the composite valve 40 is formed by integrally molding a plurality of valve casing units 36. FIG. 14 is a cross-sectional view of another embodiment of the control valve using the valve housing for a control valve of the present invention. 15 is a top view of the control valve in FIG. 14 taken along line FF. FIG. 16 is an arrow view of the control valve in FIG. 14 in the A direction. FIG. 17 is a cross-sectional view of another embodiment of a composite valve using the valve housing for a control valve of the present invention. 18 is a top view of the composite valve in FIG. 17 taken along line FF. FIG. 19 is a schematic sectional view showing a solenoid valve provided with a conventional valve body. FIG. 20 is a schematic cross-sectional view showing a problem in a solenoid valve having a conventional valve body.

  Hereinafter, embodiments (examples) of the present invention will be described in more detail with reference to the drawings.

  FIG. 1 is a cross-sectional view showing an outline of a method for manufacturing a valve casing unit of the present invention, and FIGS. 2 to 3 are cross-sectional views showing an outline of a method for manufacturing a control valve using the valve housing for a control valve of the present invention. 4 is a cross-sectional view of a control valve using the valve housing for a control valve of the present invention, FIG. 5 is a top view of the control valve of FIG. 4, and FIG. 6 is an arrow view of the control valve of FIG. It is.

Below, the valve housing 10 for control valves of this invention, a control valve using the same, and its manufacturing method are demonstrated based on FIGS.
In the first embodiment, the control valve valve housing 10 is used and applied to a so-called single type control valve.

  First, as shown in FIG. 4, a substantially cup-shaped valve seat member 14 that forms the valve chamber 12 is produced. That is, as shown in FIG. 1A, the valve seat member 14 includes a flange portion 16 and a valve seat member main body portion 20 that extends downward from the flange portion 16 and forms the valve chamber 12. The bottom of the valve seat member main body 20 has a valve seat 24 having a valve hole 22.

On the other hand, as shown in FIG. 1B, a flow path forming member 30 that forms the inlet side flow path 26 and the outlet side flow path 28 is produced.
That is, as shown in FIG. 1A, the flow path forming member 30 is divided into a plurality of parts in the left-right direction in FIG. 1, that is, in the direction perpendicular to the moving direction of the valve body 44 (this In the embodiment, it is composed of a first flow path forming member 32 and a second flow path forming member 34 which are divided in half on the left and right.

1A and 1B correspond to arrow views in the direction of arrow E in FIG.
The first flow path forming member 32 includes a half-divided inlet-side flow path forming section 32 a that forms the inlet-side flow path 26, and a half-divided outlet-side flow path forming section 32 b that forms the outlet-side flow path 28. The flow path forming member main body bulged so as to correspond to the valve seat member main body 20 of the valve seat member 14 between the inlet side flow path forming portion 32a and the outlet side flow path forming portion 32b. 32c is formed.

And the flange parts 32d and 32e for joining are each formed in the front and back (the near side and back side in FIG. 1) of the 1st flow path formation member 32 (refer FIG. 1, FIG. 6).
Similarly, the second flow path forming member 34 includes a half of the inlet side flow path forming part 34 a that forms the inlet side flow path 26 and a half of the outlet side flow path forming part that forms the outlet side flow path 28. 34b, and a flow path forming member bulged so as to correspond to the valve seat member main body portion 20 of the valve seat member 14 between the inlet side flow path forming portion 34a and the outlet side flow path forming portion 34b. A main body portion 34c is formed.

And the flange parts 34d and 34e for joining are each formed in the front and back (the near side and back side in FIG. 1) of the 2nd flow path formation member 34 (refer FIG. 1, FIG. 6).
Then, as shown in FIG. 1A, the valve seat member 14 manufactured in this way, the half first flow path forming member 32, and the second flow path forming member 34 are joined.

  That is, as shown by the arrow in FIG. 1 (A), the valve seat member 14 is moved from the left and right directions by the first flow path forming member 32 and the second flow path forming member 34, that is, the valve body. The flow path forming member 30 is configured by sandwiching the valve seat member main body portion 20 of the valve seat member 14 from a direction perpendicular to the moving direction 44 (see FIG. 1B).

  Then, as indicated by arrows B and C in FIG. 1B and arrow C in FIG. 6, between the outer surface of the valve seat member body 20 of the valve seat member 14 and the inner surface of the flow path forming member 30 ( 1B), between the joining flange portion 32d of the first flow path forming member 32 and the joining flange portion 34d of the second flow path forming member 34 (in FIG. 1B). Between the flange portion 32e for joining the first flow path forming member 32 and the flange portion 34e for joining the second flow path forming member 34 (see arrow C in FIG. 6). To join.

  Thereby, as shown in FIG. 1 (B), the valve seat member 14, and the flow path forming member 30 composed of the first flow path forming member 32 and the second flow path forming member 34, The valve casing unit 36 is configured, and thereby the control valve valve housing 10 is manufactured.

Note that the valve seat member 14, the first flow path forming member 32, and the second flow path forming member 34 constituting the valve casing unit 36 are made of metal.
In this case, depending on the environment to be used, by appropriately selecting these metal materials, for example, in a use environment where heat resistance and corrosion resistance are required, the valve seat member 14 and the first flow path forming member By making the metal constituting the valve casing unit 36 composed of 32 and the second flow path forming member 34 from, for example, stainless steel having excellent corrosion resistance, it can be used even at high fluid pressure. There can be provided the valve housing 10 for a control valve which is not deteriorated due to change and has excellent reliability.

  In this case, the valve casing unit 36 including the valve seat member 14 and the first flow path forming member 32 and the second flow path forming member 34 is made of the same metal, so that potential difference corrosion does not occur. Therefore, although it is preferable, it is also possible to comprise from different metals.

  In this case, it is desirable that the valve seat member 14, the first flow path forming member 32, and the second flow path forming member 34 constituting the valve casing unit 36 are manufactured by metal press molding.

  As described above, the valve casing unit 36 includes the valve seat member 14 manufactured by metal press molding, the first flow path forming member 32, and the second flow path forming member 34. In addition, it is not necessary to cut a complicatedly configured flow path, seal groove, joint, valve chamber, valve seat, and the like, and a complicatedly structured flow path can be easily formed at low cost.

  Further, in the case of this embodiment, the flow path forming member 30 is composed of a first flow path forming member 32 and a second flow path forming member 34 which are divided into two on the left and right. Of course, the flow path forming member 30 may be composed of three or more flow path forming members 32.

  Furthermore, the method for joining the valve seat member 14, the first flow path forming member 32, and the second flow path forming member 34 to each other is not particularly limited. A known joining method such as welding, adhesion, or pressure bonding can be employed.

  Further, the mold body 38 is formed by integrally molding the periphery of the valve casing unit 36 with a molding material, and the valve housing 10 for a control valve in which the valve casing unit 36 and the mold body 38 are integrated is manufactured. May be. In this case, the method of integrally molding the periphery of the valve casing unit 36 with a molding material is not particularly limited, and castings (molds) such as conventionally well-known integral molding, insert molding, and potting are also possible. Is included.

  Furthermore, the above-mentioned resin is not particularly limited, and for example, polyphenylene sulfide resin (PPS) or fluororesin excellent in high heat resistance, chemical resistance and precision moldability is used depending on the use environment. Is possible.

  Then, as shown in FIGS. 2 to 3, by attaching the electromagnetic valve type control unit 46 including the valve body 44 of the control valve 42 to the control valve valve housing 10 configured as described above, The control valve 42 is assembled.

Moreover, the control part 46 of this control valve 42 is provided with the electromagnetic coil 50 by which the drive part 48 was penetrated, as shown in FIG.
The electromagnetic coil 50 is molded with a mold resin 64 so as to surround the bobbin 52 around which the winding is wound and the bobbin 52. Further, as shown in FIG. 3, the electromagnetic coil 50 is mounted inside the magnetic frame 54 and is fixed to the drive unit via the magnetic frame 54.

  That is, the drive unit 48 is inserted into the drive unit insertion hole 62 formed in the center of the bottom plate portion 60 of the magnetic frame 54 and the drive unit insertion hole 66 of the bobbin 52. The fastening bolt 72 is inserted into a bolt insertion hole 58 formed in the central portion of the upper plate portion 56 of the magnetic frame 54 and screwed into a screw hole formed in the attractor 70.

Thereby, the electromagnetic coil 50 is inserted and fixed in the drive part 48, and the control part 46 of the control valve 42 is comprised.
The drive unit 48 includes a plunger case 74, and includes a plunger 76 to which the valve body 44 is fixed so as to be movable up and down in the plunger case 74. A biasing spring 80 that biases the plunger 76 downward, that is, in the direction of the valve seat 24, is interposed between the suction element 70 and the plunger 76.

  Further, a seal frame member 84 to which a seal member 82 is attached is fixed to the outer periphery of the lower end of the plunger case 74, and a lid member 86 is not shown, but a fastening hole of the lid member 86 and a flange portion of the valve seat member 14 A fastening bolt 88 is attached through a fastening hole formed in 16.

  In order to mount the control unit 46 configured as described above on the control valve valve housing 10, the control unit 46 is assembled in the order shown in the exploded perspective view of FIG. The control unit 46 may be mounted with the tightening bolt 88 through the tightening hole formed in the flange portion 16 of the valve seat member 14 and the tightening hole of the valve seat member 14 so that the valve body 44 is located at the position.

  1 to 6, reference numerals 90 and 92 denote joint portions connected to the inlet-side channel 26 and the outlet-side channel 28, respectively.

FIG. 7 is a sectional view of a composite valve using the valve housing for a control valve of the present invention, and FIG. 8 is a top view of the composite valve of FIG.
In the control valve valve housing 10 of the second embodiment, the same components as those of the control valve valve housing 10 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

The second embodiment shows an embodiment in which the control valve valve housing 10 is applied to a composite valve integrated so that a plurality of control valves are connected.
As shown in FIGS. 7 to 8, the valve housing 10 for control valve as shown in FIGS. 2 to 6 can be formed integrally with a plurality of valve casing units 36 to form a composite valve 40. it can.

  In this case, according to the present invention, the number of parts is small. For example, the valve seat member 14 constituting the valve casing unit 36, the first flow path forming member 32, and the second flow path forming are formed by metal press molding. Since the member 34 can be formed, the flow path can be easily changed and the cost can be reduced.

  In addition, as will be described later, the press mold can be divided and manufactured for each block of the flow path, so that when changing the flow path, it can be easily changed by replacing the block, and the degree of freedom in design Can be increased.

  FIG. 9 shows a case where the control valve valve housing 10 according to the present invention is integrally formed with a plurality of valve casing units 36 as shown in FIGS. Outline of explaining that the mold can be divided for each block of the flow path, and when changing the flow path, it can be easily changed by replacing the block, and the degree of freedom of design can be increased. FIG.

  That is, FIG. 9 shows a mold 94 used when the control valve valve housing 10 of the composite valve 40 is formed by integrally forming a plurality of valve casing units 36 as shown in FIGS. ing.

  The mold 94 includes a plurality of blocks, for example, a first block 96, a second block 98, a third block 100, and a fourth block 102, as shown in FIGS. It is composed of

  Then, as shown in FIG. 11, the fifth block 104 and the sixth block 106 having different flow paths are separately prepared, and these blocks are replaced, for example, as shown in FIG. 12 and FIG. Thus, by replacing the blocks, the flow path can be easily changed and the degree of freedom in design can be increased.

As described above, the plurality of flow path forming members 32 and 34 only need to sandwich the valve seat member 14 from the direction perpendicular to the moving direction of the valve body 44. Can be configured,
Further, when the composite valve 40 is configured by integrally molding the valve casing units 36 so as to form a plurality, the composite is easy and the number of parts is small. For example, the valve casing unit 36 can be formed by metal press molding. The flow path can be easily changed and the cost can be reduced.

  Thus, since the valve seat member includes the substantially cup-shaped valve seat member main body portion 20 that forms the valve chamber 12, the valve chamber 12 and the valve seat 24 can be configured, and the valve seat member main body portion 20. Can be easily sandwiched between a plurality of flow path forming members, has excellent assemblability, can be mass-produced, and cost can be reduced.

  14 is a cross-sectional view of another embodiment of a composite valve using the valve housing for a control valve of the present invention, FIG. 15 is a top view of the composite valve in FIG. 14, taken along line F-F, and FIG. It is an arrow view of the A direction of 14 control valves.

  In the control valve valve housing 10 of the third embodiment, the same components as those of the control valve valve housing 10 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

In the third embodiment, the control valve valve housing 10 is used and applied to a so-called single type control valve.
In the above-described first embodiment, the valve seat member 14 has a substantially cup shape. However, the valve housing 10 for the control valve of this embodiment does not include the valve seat member main body 20 that forms the valve chamber 12. The difference is that the valve seat member 14 has a substantially flat plate shape.

  Further, in the third embodiment, the flow path forming member 30 is divided into a plurality of parts in the left-right direction in FIG. 1, that is, the direction perpendicular to the moving direction of the valve body 44 (two in the left and right in this embodiment). The first flow path forming member 32 and the second flow path forming member 34 are divided into halves.

  On the other hand, in the valve housing 10 for the control valve of the third embodiment, it is divided into a plurality of parts in the vertical direction in FIG. 14, that is, the moving direction of the valve body 44 (in this example, it is divided into two in the vertical direction). The first flow path forming member 32 and the second flow path forming member 34, which are halved, are formed.

  The valve seat member 14 is sandwiched between the first flow path forming member 32 and the second flow path forming member 34, and, as shown in FIGS. They are fastened together at 88. Of course, as in the first embodiment, for example, a known joining method such as welding, brazing, welding, adhesion, or pressure bonding can be employed.

FIG. 17 is a cross-sectional view of another embodiment of the composite valve using the valve housing for the control valve of the present invention, and FIG. 18 is a top view of the composite valve of FIG.
In the control valve valve housing 10 of the fourth embodiment, the same components as those of the control valve valve housing 10 of the third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

The fourth embodiment shows an embodiment in which the control valve valve housing 10 is applied to a composite valve integrated so that a plurality of control valves are connected.
Thus, since it is only necessary to sandwich the valve seat member 14 from the moving direction of the valve body 44 by the plurality of flow path forming members 32.34, a complicated flow path can be configured in a simple process, Even when the composite valve 40 is formed by integrally forming a plurality of valve casing units 36, the composite valve 40 can be easily combined and the number of parts can be reduced. For example, the control valve valve housing 10 can be formed by metal press molding. The flow path can be easily changed and the cost can be reduced.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the above embodiment, the valve seat member 14 constituting the valve casing unit 36 and the first Although all of the flow path forming member 32 and the second flow path forming member 34 are made of metal and manufactured by metal press molding, the valve seat member 14 constituting the valve casing unit 36 and the first flow path forming At least one member of the member 32 and the second flow path forming member 34 may be made of metal and manufactured by metal press molding.

Further, all or at least one member of the valve seat member 14, the first flow path forming member 32, and the second flow path forming member 34 constituting the valve casing unit 36 may be a resin.
In this case, depending on the environment used, by appropriately selecting the material of these resins, for example, in a use environment where heat resistance and corrosion resistance are required, the valve seat member 14 and the first flow path forming member By making the resin that constitutes the valve casing unit 36 composed of 32 and the second flow path forming member 34 from, for example, a fluororesin such as PTFE resin or PFA resin that has excellent heat resistance and corrosion resistance, There can be provided the valve housing 10 for a control valve which is not deteriorated due to secular change and is excellent in reliability.

Moreover, since the valve casing unit 36 is made of resin, the weight can be reduced.
In this case, the valve seat member 14, the first flow path forming member 32, and the second flow path forming member 34 can be made of the same resin or different resins.

  Further, in the above embodiment, the electromagnetic valve type control unit 46 is described as being mounted on the control valve valve housing 10 and the control valve 42 is mounted. However, other control units, two-way valves, three-way valves, etc. The present invention can be applied to all control valves such as switching valves, on-off valves, flow control valves, and motor operated valves.

  Accordingly, the shape of the valve member that accommodates the piping member, the control unit including the valve body of the control valve, the control valve, the number of the piping members, the shape, and the like are not limited at all. Various modifications can be made without departing from the object of the present invention, such as being selectable.

  The present invention is applicable to, for example, a control valve valve housing used for a control valve such as a switching valve such as a two-way valve or a three-way valve, an on-off valve, and a flow control valve, and a method for manufacturing the control valve valve housing. is there.

DESCRIPTION OF SYMBOLS 10 Control valve valve housing 12 Valve chamber 14 Valve seat member 16 Flange part 20 Valve seat member main-body part 22 Valve hole 24 Valve seat 26 Inlet side flow path 28 Outlet side flow path 30 Flow path formation member 32 1st flow path formation Member 32a Inlet side channel forming part 32b Outlet side channel forming part 32c Channel forming member body part 32d Joining flange part 32e Joining flange part 34 Second channel forming member 34a Inlet side channel forming part 34b Outlet side Flow path forming part 34c Flow path forming member main body part 34d Joining flange part 34e Joining flange part 36 Valve casing unit 40 Composite valve 42 Control valve 44 Valve body 46 Control part 48 Drive part 50 Electromagnetic coil 52 Bobbin 54 Magnetic frame 56 Plate portion 58 Bolt insertion hole 60 Bottom plate portion 62 Drive portion insertion hole 64 Mold resin 66 Drive portion insertion hole 70 Suction element 72 Fastening bolt 74 Plunger Case 76 Plunger 80 Energizing spring 82 Sealing member 84 Sealing frame member 86 Lid member 88 Clamping bolts 90 and 92 Joint portion 94 Mold 96 First block 98 Second block 100 Third block 102 Fourth block 104 Fifth block 106 Sixth block 200 Solenoid valve 202 Solenoid valve body 204 Valve seat member 206 Piping connection member 208 Valve chamber 210 Valve seat 212 Base portion 214 Connection portion 216 Seal member 218 Seal member 220 Joint parts

Claims (8)

A plurality of flow path forming members;
A valve seat member constituting the valve seat;
A valve housing for a control valve, comprising: a valve casing unit configured by sandwiching the valve seat member with the plurality of flow path forming members.   The valve housing for a control valve according to claim 1, wherein the plurality of flow path forming members are configured to sandwich the valve seat member from a direction perpendicular to a moving direction of the valve body.   3. The valve housing for a control valve according to claim 2, wherein the valve seat member includes a substantially cup-shaped valve seat member main body forming a valve chamber.   The valve housing for a control valve according to claim 1, wherein the plurality of flow path forming members are configured to sandwich the valve seat member from the moving direction of the valve body.   5. The flow path forming member and the valve seat member constituting the valve casing unit are all or at least one member is manufactured by metal press molding. 6. Valve housing for control valve.   The valve housing for a control valve according to any one of claims 1 to 5, wherein the valve casing unit is integrally formed so as to be connected in series so that the flow path is switched.   A control valve comprising a control portion having a valve body of a control valve mounted on the control valve valve housing according to any one of claims 1 to 6.   A method for manufacturing a valve housing for a control valve, wherein a valve casing unit is formed by sandwiching a valve seat member with a plurality of flow path forming members.

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