JP2008267528A - Fluid control valve and fluid control module unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fluid equipment and a fluid control module unit having compact piping construction. <P>SOLUTION: The fluid equipment 1 is used in a flow path structure where a plurality of flow paths branch from a common flow path 32. It has a first port 13 and a second port 14 opened in the side faces, and a housing 12 having a control part 3 arranged on a communication passage 15 which communicates the first port 13 with the second port 14. The side face in which the second port of one fluid equipment 1A is opened is made to abut on the side face in which the first port of the other fluid equipment 1B, to connect fluid control valves 1 to each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fluid device that controls fluid flowing in a common flow path, and a fluid control module unit.

  Conventionally, for example, a plurality of fluid control valves are arranged at a position where the flow path branches from the common flow path, and the fluid is branched from the common flow path to each fluid control valve for output, or the fluid input to the fluid control valve A branching system that joins the two into a common flow path is known. 10 to 13 are diagrams showing a conventional example of a branching system.

  According to the first conventional example shown in FIG. 10, the branch system 100 includes a plurality of manifold valve assemblies 105 at the joining position of the supply tube 101 and the delivery tube 102, and the cleaning solution pipe 103 and the discharge. It arrange | positions in the joining position with the piping 104 for work, respectively. The supply tube 101 and the delivery tube 102 communicate with the side surfaces of the first and second valve housings 106 and 107 of the manifold valve assembly 105, respectively. The cleaning solution pipe 103 has a header shape and is connected to a cleaning solution supply port 108 provided on the lower surface of each first valve housing 106. The discharge pipe 104 has a header shape and communicates with a discharge port 109 provided on the lower surface of each second valve housing 107.

  The first and second valve housings 106 and 105 of each manifold valve assembly 105 communicate with each other via a branch pipe 110. The manifold valve assembly 105 is provided with actuator assembly portions 111, 112, 113, and 114 with respect to the first and second valve housings 106 and 107.

  As shown in FIG. 11, the first valve housing 106 includes a main fluid valve portion 115 that controls the output of the main fluid supplied from the supply tube 101, and a cleaning solution supplied from the cleaning solution supply port 108. A cleaning liquid valve 116 for controlling the output is incorporated. The main fluid valve portion 115 is connected to the actuator assembly portion 112 via the stem 117 and is given a driving force necessary for the valve opening / closing operation. The cleaning liquid valve section 116 is connected to the actuator assembly section 111 via an actuator rod 118 and is given a driving force necessary for the valve opening / closing operation.

  On the other hand, the second valve housing 107 is for discharging the delivery valve portion 119 that controls the output of the main fluid to the delivery tube 102 and the drainage liquid such as the cleaning fluid that has flowed through the first and second valve housings 106 and 107. A discharge valve portion 120 that outputs to the pipe 104 is incorporated. The delivery valve portion 119 is connected to the actuator assembly portion 114 via the stem 121 and is given a driving force necessary for the valve opening / closing operation. The discharge valve portion 120 is connected to the actuator assembly portion 113 via the actuator rod 122, and is given a driving force necessary for the valve opening / closing operation.

  10 and 11, the main fluid flowing through the supply tube 101 opens the main fluid valve 115 and the delivery valve 119 of each manifold valve assembly 105, and the cleaning liquid. By closing the valve portion 116 and the discharge valve portion 120, the flow is divided into the delivery tubes 102. Further, the cleaning solution is closed by closing the main fluid valve 115 and the delivery valve 119 of each manifold valve assembly 105 and opening the cleaning liquid valve 116 and the discharge valve 120. The first and second valve housings 106 and 107 and the branch pipe 110 are cleaned and then discharged to the discharge pipe 104 (see, for example, Patent Document 1).

  In addition, according to the second conventional example shown in FIG. 12, the branch system 130 includes a plurality of valves 133 including an input port 131 and an output port 132. The branch system 130 connects the cheese 134 and the straight pipe 135 to form a common flow path, and connects the input port 131 of the valve 133 to each cheese 134. Therefore, the branch system 130 can output the fluid flowing through the common flow path from each output port 132 by opening and closing each valve 133.

  Further, according to the third conventional example shown in FIG. 13, the branching system 140 has a rectangular parallelepiped manifold base 141 formed with one common flow path 142 in the left-right direction in the figure, and a plurality of output ports on the front side in the figure. 143 has been established. The output port 143 communicates with the common flow path 142. The valve portion of the valve 144 is disposed at a portion where the output port 143 communicates with the common flow path 142, and controls the output of the fluid supplied to the common flow path 142 from the output port 143.

Japanese National Patent Publication No. 10-511329

  However, since the branch systems 100, 130, and 140 of the first to third conventional examples connect the valves to each other using piping, piping space is required, and the system is large.

That is, in the branch system 100 shown in FIGS. 10 and 11, the manifold valve assembly 105 constitutes part of the flow path of the main fluid and the cleaning solution by the first and second cylinder valves 106 and 107 and the branch pipe 110. Although the system is made compact, the other manifold valve assembly 105 is connected via a supply tube 101, a header-like cleaning solution pipe 103, and a discharge pipe 104. Waste space was created between the manifold valve assemblies 105 to be used.
Moreover, since the branch system 130 shown in FIG. 12 comprises the common flow path by the cheese 134 and the straight piping 135 and connects the valve 133 to each cheese 134, the piping space is large.
In this respect, the branching system 140 shown in FIG. 13 has a space for installing the manifold base 141 although the space between the valves 144 can be reduced because the plurality of valves 144 are attached to the manifold base 141. In addition, when it is desired to increase the number of stations, it is necessary to replace the base 141, and there is a problem that the cost of the base 141 is increased.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fluid device and a fluid control module unit that can make the piping structure compact.

The fluid device according to the present invention has the following configuration.
(1) In a fluid device used in a flow path structure in which a plurality of flow paths branch from a common flow path, a first port and a second port are opened on a side surface, and the first port and the second port are communicated with each other. A housing having a control unit disposed on the communication flow path is provided.

(2) In the invention described in (1), the housing has an attachment portion to which a connecting member for connecting the fluid device to another fluid device is attached outside at least one of the first port and the second port. Have

(3) In the invention described in (2), the connecting member is a bolt, and the attachment portion is formed with a bolt hole to which the bolt is fastened.

(4) In the invention according to any one of (1) to (3), the housing includes an annular protrusion provided annularly along the outer periphery of the opening of the first port, and the second port. And a step portion formed in an annular shape along the outer periphery of the opening.

(5) In the invention according to any one of (1) to (4), female threads are formed on the inner peripheral surfaces of the first and second ports.

(6) In the invention according to any one of (1) to (5), the control section is a valve section, and the housing is a valve seat disposed on a flow path surface of the communication flow path. A valve chamber that houses a valve body that contacts or separates from the valve seat, and a third port that communicates with the valve chamber.

(7) In the invention described in (6), an internal thread is formed on the inner peripheral surface of the third port.

The fluid control module unit of the present invention has the following configuration.
(8) The fluid devices described in any one of (1) to (7) are connected by bringing the other open surfaces of the first and second ports into contact with each other.

  In the fluid device and the fluid control module unit according to the present invention, the side surface where the first or second port of the other fluid device is opened is brought into contact with the side surface where the first and second ports are opened, and the fluid device. When another fluid device is connected to the fluid device, the communication channel of the fluid device and the communication channel of the other fluid device communicate with each other to form a common channel in the housing. A control unit is disposed on the channel surface of the communication channel, and the fluid flowing through the common channel is controlled by the control unit. Therefore, according to the fluid device and the fluid control module unit according to the present invention, the piping and the manifold base for constructing the common flow path become unnecessary, and the piping structure can be made compact.

  In the fluid device and the fluid control module unit according to the present invention, a connecting member is attached to a mounting portion provided outside at least one of the first port and the second port, and another fluid device is directly connected to the housing of the fluid device. Therefore, the connecting structure can be made compact.

  In the fluid device and the fluid control module unit according to the present invention, the bolts are fastened to the bolt holes formed in the connecting direction of the fluid device with respect to the housing to connect the fluid devices to each other. Therefore, the connection structure is simple and inexpensive. is there.

  In the fluid device and the fluid control module unit according to the present invention, for example, a stepped portion of another fluid device is provided on an annular convex portion protruding annularly along the outer periphery of the end surface of the first port via a seal member. The sealing member is crushed by inserting the open end face of the second port. At this time, the first port of the fluid device and the second port of the other fluid device are aligned by the fitting of the annular convex portion and the stepped portion, and the communication flow paths communicate with each other. Therefore, the fluid device according to the present invention can be configured with the first and second ports as part of the common flow path.

  In the fluid device and the fluid control module unit according to the present invention, since the internal thread is formed on the inner peripheral surfaces of the first and second ports, the piping material on which the external thread is formed is connected to the first or second port. be able to.

  In the fluid device and the fluid control module unit according to the present invention, the control unit is a valve unit, the valve seat is disposed on the flow path surface of the communication channel formed in the housing, and the valve body that contacts or separates from the valve seat is provided. A third port communicates with the valve chamber to be accommodated. Therefore, according to the fluid device and the fluid control module unit according to the present invention, the fluid device can be connected to each other, and at the same time, the branch channel can be formed, and the piping work can be simplified.

  In the fluid device and the fluid control module unit according to the present invention, since the internal thread is formed on the inner peripheral surface of the third port, the fluid device and the fluid control module unit are connected to one fluid device from the piping path connecting the first and second ports. A function as a branch valve for branching three ports can be provided.

  Next, an embodiment of a fluid device and a fluid control module unit according to the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 2 is a cross-sectional view of a fluid control valve 1 which is an example of a “fluid device”. FIG. 3 is a cross-sectional view taken along the line AA of FIG.
The fluid control valve 1 is used, for example, in an automobile manufacturing facility. A transfer machine (automatic transfer complex machine tool) of an automobile manufacturing facility, an automatic lathe, and the like are provided with a large number of coolant liquid discharge ports in a head part, a jig part, a tool exchange part, and the like. In these discharge ports, the coolant liquid stored in the tank passes through the coolant pump, and is supplied from the main pipe via a branch pipe member such as cheese, a pipe block called a header, and the like. A fluid control valve 1 is installed upstream of each discharge port in order to control the supply and shut-off of the coolant liquid. Therefore, there are cases where hundreds or more of the fluid control valves 1 are installed in the automobile manufacturing facility, and a large amount of piping materials connect these fluid control valves 1 to the coolant pump. In recent years, it has been desired to omit this piping and make the piping structure compact. Therefore, the fluid control valve 1 of the first embodiment has a compact piping structure by having the following configuration.

  The fluid control valve 1 includes a drive unit 2 and a valve unit 3, and the drive unit 2 attaches a partition plate 5 to a cylinder cover 4 having a hollow hole opened on one side, and between the cylinder cover 4 and the partition plate 5. The piston chamber 6 is formed in the upper part. The piston 7 is slidably loaded in the piston chamber 6 and divides the piston chamber 6 into an upper chamber 6a and a lower chamber 6b. A coil spring 8 is contracted in the upper chamber 6a, and a downward force (in the direction of the valve portion) is always applied to the piston 7. The upper chamber 6a is opened to the atmosphere via a breathing hole 9 formed in the cylinder cover 4, while the lower chamber 6b communicates with the operation air supply control device 10 via an operation port (not shown) to supply operation air. Exhausted. Therefore, in the drive unit 2, the piston 7 moves in the vertical direction in the figure by the balance between the elastic force of the coil spring 8 and the internal pressure of the lower chamber 6 b. The valve shaft 11 is connected to the piston 7, and a tip portion penetrates the partition plate 5 and protrudes toward the valve portion 3.

  The valve unit 3 is built in the housing 12. The housing 12 is made of a metal having rigidity and strength such as cast iron so that a high-pressure fluid of 20 MPa or more can be controlled. The housing 12 is provided with a first port 13 and a second port 14 on opposite side surfaces. The first and second ports 13 and 14 are internally threaded so that piping materials such as joints can be screwed. The first and second ports 13 and 14 are in direct communication with each other via a communication channel 15.

  A valve unit 3 is provided on the communication channel 15. In the housing 12, an opening 16 for connecting the driving unit 2 is formed in a substantially cylindrical shape from the upper surface, and a valve chamber 17 is formed between the inner wall of the opening 16 and the partition plate 5 of the driving unit 2. . The housing 12 is provided with a communication hole 18 coaxially with the opening 16, and allows the valve chamber 17 and the communication channel 15 to communicate with each other. A female screw is formed on the inner peripheral surface of the communication hole 18, and a metal valve seat member 19 is screwed. In the valve chamber 17, the tip end portion of the valve shaft 11 is arranged coaxially with the valve seat member 19. The valve body 20 is attached to the distal end portion of the valve shaft 11, is accommodated in the valve chamber 17, and contacts or separates from the valve seat member 19. A third port 21 communicates with the inner surface of the valve chamber 17. Therefore. The third port 21 communicates with the first and second ports 13 and 14 via the valve seat member 19 and the communication flow path 15. An internal thread is formed on the inner peripheral surface of the third port 21 and is screwed into an external thread formed on a piping material such as a joint.

  As shown in FIG. 3, the housing 12 is provided with an annular convex portion 22 in a ring shape along the outer periphery of the opening of the first port 13 on the side surface where the first port 13 is opened. Further, the housing 12 has a step portion 23 formed in an annular shape along the outer periphery of the opening of the second port 14 on the side surface where the second port 14 is opened. The inner diameter X1 of the annular convex portion 22 and the outer diameter X2 of the opening end surface of the second port 14 provided with the step portion 23 are inserted into the annular convex portion 22 at the opening end surface of the second port 14 provided with the step portion 23. The dimensions are set to be approximately the same so that they can be obtained.

  As shown in FIG. 2, the housing 12 is integrally formed with mounting portions 24, 24 at diagonal positions with the communication channel 15 in between. Bolt holes 25 are formed in the mounting portion 24 along the opening direction of the first and second ports 13 and 14. Here, two attachment portions 24 are provided, but three or more attachment portions 24 may be provided.

FIG. 1 is an exploded perspective view of the fluid control module unit 31.
The fluid control module unit 31 connects the fluid control valves 1A and 1B using a metal bolt 30 (an example of a “connection member”). The fluid control valves 1A and 1B have basically the same structure, but the configuration of the mounting portion 24 is different. The mounting portion 24A has a female screw formed on the entire inner peripheral surface of the bolt hole 25A, whereas the mounting portion 24B has a storage portion 26 for storing the head of the bolt 30 in one end opening of the bolt hole 25B. Is formed.

<Connection method of fluid control valve>
The fluid control valves 1A and 1B are connected as follows. A second port in which a sealing member 27 made of an elastic material such as resin or rubber is accommodated in the annular convex portion 22 of the fluid control valve 1B, and the step portion 24 of the fluid control valve 1A is provided on the annular convex portion 22. 14 open end faces are inserted. Then, the bolts 30 are respectively inserted from the storage portions 26 of the fluid control valve 1B and screwed into the bolt holes 25 of the fluid control valves 1A and 1B, respectively. The sealing member 27 is crushed by the thrust generated at this time, and the connecting portion between the second port 14 of the fluid control valve 1A and the first port 13 of the fluid control valve 1B is sealed.

FIG. 4 is a top view of a fluid control module unit in which four fluid control valves 1 shown in FIG. 2 are connected.
The fluid control module unit 31 can adjust the number of fluid control valves 1 connected by using bolts 30 and 29 having different lengths. For example, the opening end face of the second port 4 in which the step portion 23 is formed is inserted into the annular convex portion 22 of the fluid control valves 1B, 1A, 1A, 1B via the seal member 27. Then, a bolt 30 is screwed into the fluid control valve 1A from the fluid control valve 1B on the left side in the drawing to connect the fluid control valve 1B to the fluid control valve 1A. Further, a bolt 29 (an example of a “connecting member”) that is longer than the bolt 30 is screwed into the fluid control valves 1A and 1A from the fluid control valve 1B on the right side in the figure, and the fluid control valve 1B and the fluid control valves 1A and 1A Are connected. As a result, the communication flow paths 15 of the fluid control valves 1B, 1A, 1A, and 1B communicate with each other, and a common flow path 32 is formed. Since the head of the bolt 30 is housed in the housing portion 26 and does not protrude outside the housing 12, the piping material (for example, a joint) is connected to the first and second ports 13 and 14. Will not interfere with the connection of piping materials.

<Description of operation>
Next, operations of the fluid control valve 1 and the fluid control module unit 31 will be described with reference to a cross-sectional view shown in FIG.
When all the fluid control valves 1B, 1A, 1A, 1B are in the closed state, even if the coolant liquid is supplied to the common flow path 32, none of the fluid control valves 1 outputs the coolant liquid from the third port 21.

  For example, when operating air is supplied to the leftmost fluid control valve 1 </ b> B to raise the piston 7, and the valve body 20 is separated from the valve seat member 19, the coolant liquid flows from the common flow path 32 to the valve seat member 19 and the valve chamber 17. Is supplied to the third port 21 via the output.

  Therefore, if the valve opening / closing operation of the fluid control valve 1 constituting the fluid control module unit 31 is controlled, the coolant liquid can be supplied from any fluid control valve 1.

<Effect>
As described above, the fluid control valve 1 and the fluid control module unit 31 of the first embodiment have other fluid control on the side surface of the one fluid control valve 1A where the first and second ports 13 and 14 are opened. When the side where the first or second port 13 or 14 of the valve 1B or 1A is opened is brought into contact, and another fluid control valve 1B or 1A is connected to the fluid control valve 1A, the flow of the fluid control valve 1A is communicated The passage 15 and the communication flow path 15 of the other fluid control valves 1 </ b> B and 1 </ b> A communicate with each other to form a common flow path 32 in the housing 12. The valve portion 3 is disposed on the flow passage surface of the communication flow passage 15, and it is controlled whether or not the fluid flowing through the common flow passage 32 is output from the third port 21 by the valve portion 32 (see FIG. 5). Therefore, according to the fluid control valve 1 and the fluid control module unit 31 of the first embodiment, the piping and the manifold base for constructing the common flow path 32 become unnecessary, and the piping structure can be made compact.

  In particular, an automobile manufacturing facility is required for a fluid device such as a coolant liquid tank, a nozzle discharge port, another fluid control valve 1, etc. by connecting a large number of fluid control valves 1 with pipes. Piping needs to be provided in a limited space such as a machine tool, and the smaller the piping space, the more empty space. Since the fluid control valve 1 and the fluid control module unit 31 of the first embodiment connect the fluid control valves 1 to each other to form a common flow path 32, piping used for branching such as cheese and header is omitted. Thus, the piping space can be greatly reduced, and a large number of empty spaces can be provided in a limited space such as an automobile manufacturing facility. If the free space increases, piping work and equipment maintenance can be facilitated, or the equipment can be made compact. Furthermore, piping such as cheese or a header can be omitted, and the weight of the fluid control module unit 31 can be reduced.

  Further, when a large number of fluid control valves 1A and 1B are used as in an automobile manufacturing facility, the number of fluid control valves 1A and 1B may be changed on the installation site in accordance with the layout of a machine tool or the like. When a manifold base is used, the number of fluid control valves cannot be changed unless a plurality of types of manifold bases having different overall lengths are prepared, which increases costs. However, since the fluid control valves 1A and 1B of the first embodiment can be connected in any number by connecting the side surfaces of the fluid control valves 1A and 1B directly, the length according to the number of stations of the fluid control valves 1A and 1B. It is not necessary to prepare a manifold base and is inexpensive.

  Further, the fluid control valve 1 and the fluid control module unit 31 of the first embodiment attach the bolt 30 (or 29) to the attachment portion 24 provided outside at least one of the first port 13 and the second port 14, Since the other fluid control valve 1 is directly connected to the housing 12 of the fluid control valve 1 (see FIGS. 1 and 4), the connection structure can be made compact.

  In particular, the fluid control valve 1 and the fluid control module unit 31 of the first embodiment fasten the bolt 30 (or 29) to the bolt hole 25 formed in the connecting direction of the fluid control valve 1 with respect to the housing 12, Since the fluid control valves 1 are connected to each other, the connection structure is simple and inexpensive.

  In the automobile manufacturing facility, it is necessary to increase or decrease the number of fluid control valves 1 to be assembled to the fluid control module unit 31 by increasing or decreasing the work line. Even in this case, the fluid control valve 1 is added and expanded with two bolts 30 (or 29), and at the same time, the common flow path 32 is extended or the two bolts 30 (or 29) are removed. By removing the fluid control valve 1 from the fluid control module unit 31, the number of fluid control valves 1 can be reduced, and at the same time, the common flow path 32 can be shortened. Thus, even when the fluid control valve 1 and the fluid control module unit 31 are provided with a large number of fluid control valves 1 as in an automobile manufacturing facility, the fluid control valve 1 or the fluid control module unit 31 is configured with only two bolts 30 (or 29). The common channel 32 can be easily added or reduced. Further, since the fluid control valves 1 are directly connected to each other, the work space is narrow and the fluid control valve 1 can be easily increased or decreased.

  In addition, the fluid control valve 1 and the fluid control module unit 31 of the first embodiment include, for example, an annular protrusion 22 projecting annularly along the outer periphery of the end surface of the first port 13 via a seal member 27. The seal member 27 is crushed by inserting the opening end face of the second port 14 provided with the step portion 23 of the other fluid control valve 1. At this time, the first port 13 of the fluid control valve 1 and the second port 14 of the other fluid control valve 1 are aligned with each other by the fitting of the annular convex portion 22 and the stepped portion 23, and the communication flow paths 15 are connected to each other. Communicate with each other (see FIG. 5). Therefore, the fluid control valve 1 and the fluid control module unit 31 of the first embodiment can be configured with the first and second ports 13 and 14 as a part of the common flow path 32.

  In the fluid control valve 1 and the fluid control module unit 31 of the first embodiment, since the internal threads are formed on the inner peripheral surfaces of the first and second ports 13 and 14, the piping material (joint or the like) formed with the external threads is formed. ) Can be directly connected to the first or second port 13,14.

  Further, in the fluid control valve 1 and the fluid control module unit 31 of the first embodiment, the valve seat member 19 is disposed on the flow path surface of the communication flow path 15 formed in the housing 12, and abuts or separates from the valve seat member 19. The third port 21 communicates with the valve chamber 17 that accommodates the valve body 20 to be operated (see FIG. 2). Therefore, according to the fluid control valve 1 and the fluid control module unit 31 of the first embodiment, it is possible to configure the branch flow path at the same time as connecting the fluid control valves 1 to each other, thereby simplifying the piping work. Further, since the third port 21 communicates with the communication flow path 15 constituting the common flow path 32 in one housing 12, a branch flow path can be formed without using cheese or a header. The channel structure can be made compact.

  In the fluid control valve 1 and the fluid control module unit 31 of the first embodiment, since an internal thread is formed on the inner peripheral surface of the third port 21, the first and second ports are provided in one fluid control valve 1. A function as a branch valve for branching the third port 21 from the piping path (common flow path 32) connecting 13.14 can be provided.

(Second Embodiment)
Next, a fluid control valve and a fluid control module unit according to a second embodiment of the present invention will be described with reference to the drawings. FIG. 6 is an exploded perspective view of the fluid control module unit 40 according to the second embodiment.
The fluid control module unit 40 is different from the first embodiment in the structure of attachment portions 43 and 44 provided in the housing 42 of the fluid control valve 41. Therefore, here, it demonstrates centering on a different point from 1st Embodiment, and a common point attaches | subjects the same code | symbol as 1st Embodiment to drawing, and abbreviate | omits description suitably.

  In the fluid control module unit 40, the attachment portions 43, 44 are first on the outer peripheral surface of the opening end surface of the first port 13 and the outer peripheral surface of the opening end surface of the second port 14 with respect to the housing 42 of the fluid control valve 41. They are provided diagonally across the port 13 and the second port 14, respectively. The attachment portion 43 projects in the axial direction of the first port 13 from the end face where the first port 13 is established. On the other hand, the attachment portion 44 is provided in accordance with the position of the step portion 23. Bolt holes 45 and 46 are formed in the attachment portions 43 and 44 in directions orthogonal to the connecting direction of the fluid control valve 41, respectively.

  The fluid control valve 41 is connected to the other fluid control valve 41 by overlapping the mounting portion 44 on the mounting portion 43 of the other fluid control valve 41 and fastening the bolt 47 from above. Therefore, the fluid control valve 41 and the fluid control module unit 40 of the second embodiment can fasten the bolts 47 from above, so that the connection structure is compact and the connection work is easy to perform. In addition, since the fluid control valves 41 are connected one-on-one by the bolts 47, the fluid control valves 41 can be easily increased or decreased.

(Third embodiment)
Next, a third embodiment of the fluid control valve and the fluid control module unit of the present invention will be described with reference to the drawings. FIG. 7 is an exploded perspective view of the fluid control module unit 50 according to the third embodiment.
The fluid control module unit 50 of the third embodiment is different from the first embodiment in the connection structure in which the fluid control valve 51 is connected using a joint member 52 which is an example of a “connection member”. Therefore, here, it demonstrates centering on a different point from 1st Embodiment, and a common point attaches | subjects the same code | symbol as 1st Embodiment to drawing, and abbreviate | omits description suitably.

  The joint member 52 is made of a metal such as iron, and has a holding portion 56 that holds and holds flanges 54 and 55 provided on the housing 53. The holding portion 56 is provided with a taper 57 on the outer peripheral surface. In the joint member 52, through holes 58 and 58 for passing through bolts (not shown) are formed through the holding portion 56. The through holes 58 and 58 have a wide opening so as to accommodate a bolt head (not shown) so as not to protrude outside. In the housing 53, tapers 59 and 60 corresponding to the joint member 52 are formed inside the flanges 54 and 55.

  In the fluid control module unit 50 of the third embodiment, the flange 55 of the fluid control valve 51 is abutted against the flange 54 of another fluid control valve 51 via the seal member 27, and the flanges 54 and 55 are sandwiched by the holding portion 56. The joint member 52 is fixed to the housing 53 with bolts (not shown) attached to the through holes 58 and 58. At this time, a force toward the flange portions 54 and 55 acts on the contact surface between the taper 57 of the joint member 52 and the tapers 59 and 60 of the housing 53, thereby making it difficult to separate the flange portions 54 and 55.

  Therefore, since the fluid control valve 51 and the fluid control module unit 51 of the third embodiment individually connect the fluid control valves 51 to each other by the joint member 52, the connection structure is compact, and the fluid control valve 51 Increase and decrease can be done easily.

In addition, this invention is not limited to the said embodiment, Various application is possible.
(1) For example, in the said embodiment, the fluid control valve 1 attached to the housing 12 with the drive part 2 was mentioned as an example of the fluid apparatus. On the other hand, instead of the drive unit 2, a sensor, a filter, or the like to which a control unit such as a pressure sensor unit or a filter unit is attached may be used as an example of the “fluid device”. The fluid control valve 1 employs the air-operated drive unit 2, but may be a solenoid-type drive unit.

(2) For example, in the first embodiment, the bolt hole 25 is formed in the mounting portion 24 of the housing 12, and the bolts 30 and 29 are fastened to the bolt hole 25 to connect the fluid control valves 1 to each other (FIG. 1, FIG. 3). On the other hand, as in the first modification shown in FIG. 8, a mounting portion 64 having a through hole is provided in the housing 63 of the fluid control valve 62 so that the end surfaces of the fluid control valve 62 are brought into contact with each other. , 64 is passed through the fastening rod 65, and nuts 66 are fastened to both ends of the fastening rod 65 protruding from the housings 63, 63 to sandwich the housings 63, 63, thereby connecting the fluid control valves 62 to each other. 61 may be configured.

(3) For example, in the said 1st Embodiment, it changed with the number of the fluid control valves 1 which connect the length of a volt | bolt like the volt | bolts 29 and 30. FIG. On the other hand, as in the second modification shown in FIG. 9, two types of fluid control valves 81A and 81B having different shapes of the housings 82 and 83 are prepared, and the fluid control valves 81A and 81B are alternately arranged. Adjacent fluid control valves 81A and 81B may be connected by bolts 30 having the same length. That is, the housing 82 is provided with a pair of mounting portions 84 in which only the bolt holes 25 are formed at positions facing each other with the first and second ports 13 and 14 therebetween, and in addition to the bolt holes 25, A pair of mounting portions 85 in which the storage portion 26 for storing the head is formed are provided at a height different from that of the mounting portion 84. On the other hand, the housing 83 is provided with attachment portions 85, 84 at positions corresponding to the attachment portions 84, 85 of the housing 82. When the fluid control valves 1A and 1B are installed next to each other, the mounting portions 84 and 85 come into contact with each other. Therefore, the bolts 30 and 30 inserted into the storage portions 26 and 26 of the fluid control valve 1B are passed through the fluid control valves 1B and 1A. Then, the fluid control valves 1A and 1B can be connected by fastening to the bolt holes 25 and 25 formed in the attachment portions 84 and 84 of the fluid control valve 1A. If the fluid control valve 1A is fastened to the bolt holes 25 formed in the mounting portions 84 and 84 of the other fluid control valve 1B by fastening the bolts 30 and 30 inserted into the storage portions 26 and 26 of the mounting portions 85 and 85, respectively. It can be connected to another fluid control valve 1B. In this way, if the bolts 30 are alternately fastened to the adjacent fluid control valves 1A, 1B at different heights, the fluid control valve unit 1A, 1B can be connected in any number to form the fluid control module unit 80. Since bolts 30 having the same length are used, the number of stocks of bolts 30 is reduced. Further, since the fluid control valves 1A and 1B arranged adjacent to each other are individually connected by the bolts 30 having the same length, the operation of increasing and decreasing the fluid control valves 1A and 1B is easy.

(4) For example, in the above embodiment, the valve seat member 19 is screwed to the housing 12 and is detachably provided. However, the valve seat may be integrally provided on the housing 12.
(5) For example, in the above embodiment, the communication flow path 15 is provided in a straight shape, but the communication flow path 15 may be formed in an elbow shape. Thereby, the communication channel | path 15 can improve the freedom degree of piping combining a straight thing and an elbow-shaped thing.
(6) For example, in the said embodiment, the internal thread was formed in the internal peripheral surface of the 1st and 2nd ports 13 and 14, and the piping material was screwed. On the other hand, piping materials may be connected to the first and second ports 13 and 14 by a one-touch joint or the like without forming internal threads on the inner peripheral surfaces of the first and second ports 13 and 14.

FIG. 3 is an exploded perspective view of the fluid control module unit according to the first embodiment of the present invention. It is sectional drawing of the fluid apparatus shown in FIG. It is AA sectional drawing of FIG. It is a top view of the module unit for fluid control which connected four fluid apparatuses shown in FIG. It is BB sectional drawing of FIG. It is a disassembled perspective view of the module unit for fluid control which concerns on 2nd Embodiment of this invention. It is a disassembled perspective view of the module unit for fluid control which concerns on 3rd Embodiment of this invention. It is a 1st modification of the connection structure of the fluid apparatus shown in FIG. It is a 2nd modification of the connection structure of the fluid apparatus shown in FIG. It is an external appearance perspective view which shows the 1st prior art example of a branch system. It is a fragmentary sectional view which shows the internal structure of the valve assembly shown in FIG. It is a top view which shows the 2nd prior art example of a branch system. It is a side view which shows the 3rd prior art example of a branch system.

Explanation of symbols

1, 41, 51, 62, 81 Fluid control valve 3 Valve unit (control unit)
12, 42, 53, 63, 82 Housing 13 First port 14 Second port 15 Communication flow path 17 Valve chamber 19 Valve seat member 21 Third port 22 Annular convex portion 23 Stepped portion 24 Mounting portion 25 Bolt holes 29, 30, 45 bolt (connecting member)
31, 40, 50, 61, 80 Fluid control module unit 52 Joint member (connection member)
65 Fastening rod 65 (connection member)
66 Nut (connecting member)

Claims (8)

In a fluid device used in a flow path structure in which a plurality of flow paths branch from a common flow path,
A fluid device comprising: a housing in which a first port and a second port are opened on a side surface, and a control unit is disposed on a communication flow path that connects the first port and the second port. The fluid device according to claim 1,
The housing is
A fluid device having an attachment portion to which a connecting member for connecting the fluid device to another fluid device is attached outside at least one of the first port and the second port. The fluidic device according to claim 2,
The connecting member is a bolt,
The fluid device according to claim 1, wherein a bolt hole for fastening the bolt is formed in the attachment portion. The fluidic device according to any one of claims 1 to 3,
The housing is
An annular protrusion provided annularly along the outer periphery of the opening of the first port;
And a step portion formed in an annular shape along the outer periphery of the opening of the second port. The fluid device according to any one of claims 1 to 4,
A fluid device, wherein female threads are formed on inner peripheral surfaces of the first and second ports. The fluidic device according to any one of claims 1 to 5,
The control unit is
A valve,
The housing comprises:
A valve seat disposed on a flow path surface of the communication flow path;
A valve chamber that houses a valve body that contacts or separates from the valve seat;
And a third port communicating with the valve chamber. The fluid device according to claim 6, wherein
A fluid device, wherein an internal thread is formed on an inner peripheral surface of the third port.   A fluid control module unit, wherein the fluid devices according to any one of claims 1 to 7 are connected to each other by bringing the other open surfaces of the first and second ports into contact with each other.

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