JP2672784B2 - Fixed structure of cartridge type port joint of supply / discharge port - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure for a cartridge type port joint of a supply / discharge port.

[0002]

2. Description of the Related Art Conventionally, in a manufacturing process or the like, a manifold type solenoid valve having a plurality of air supply / exhaust ports has been used for independently driving a plurality of actuators. As shown in FIG. 5, this manifold type solenoid valve 4
1 is a plurality of solenoid valve modules 42 and air supply / exhaust modules 4
And 3. Each solenoid valve module 42 is provided with a solenoid valve that operates independently of each other, and the solenoid valve switches and connects the air supply passage and the exhaust passage to the pair of air supply / exhaust ports. When the solenoid valve modules 42 are connected, a manifold is formed in which the air supply passages and the exhaust passages of the solenoid valve modules 42 are communicated with each other. The supply / exhaust module 43 is connected to the connected solenoid valve to supply / exhaust air to / from the manifold. That is, the compressed air from the compressor is supplied to the air supply port 44 of the air supply / exhaust module 43 and is supplied to each solenoid valve module 42 via the air supply passage in the manifold. And each solenoid valve module 4
It is supplied from 2 to pneumatic equipment such as an air cylinder. The air exhausted from each pneumatic device returns from the solenoid valve module 42 to the air supply / exhaust module 43 through the exhaust passage in the manifold, and is exhausted to the outside from the exhaust port 45.

As shown in FIG. 6, each solenoid valve module 4
A port joint 47 for connecting a piping tube from each pneumatic device is attached to the supply / exhaust port 46 of No.2. This port joint 47 has a one-touch type port joint to which a piping tube can be directly connected, and a screw type having a male thread portion for connecting the piping tube to one end side and screwing the port joint 47 to the other end side. There is a threaded port joint for screwing the male thread portion of the pipe joint 48 of. The respective port joints 47 are selected by the user as needed, and the supply / exhaust ports 4 of the solenoid valve module 42 are selected.
It is a cartridge type that can be attached to 6. To attach the port joint 47 to the air supply / exhaust port 46, the U-shaped locking pin 49 is inserted from the outer surface side of the solenoid valve module 42 with the port joint 47 inserted into the air supply / exhaust port 46. To do. Then, as shown in FIG. 7, since the locking pin 49 engages with the annular groove 47 a formed on the outer peripheral surface of the port joint 47, the port joint 43 is locked in the air supply / exhaust port 46 so as not to fall off. To be done.

To screw the pipe joint 48 to the screw type port joint 47, as shown in FIG.
The pipe joint 48 is screwed into the port joint 47 with the box wrench R in a state where the pair of notched portions 47b formed in parallel to each other on the outer peripheral side of the are fixed by the spanner S.

However, for the solenoid valve module 42 having a narrow width, the space between the port joints 47 of the adjacent solenoid valve modules 42 becomes narrow and the spanner S cannot be engaged. Could not be fixed.

Therefore, when screwing the pipe joint 44 into the port joint 47, a method is considered in which the port joint 47 itself is non-rotatably fixed without fixing the port joint 47 with a spanner S. That is, as shown in FIG. 8, a linear groove 50 a is formed on the outer peripheral side of the port joint 50, and the detent pin 51 is provided from the side surface of the solenoid valve module 42.
To insert. Then, as shown in FIG. 9, with the port joint 50 inserted in the air supply / exhaust port 46, the detent pin 51 is engaged with the groove 50a. As a result, since the port joint 50 is non-rotatably engaged in the air supply / exhaust port 46, the pipe joint 48 can be screwed without fixing the port joint 46 with the spanner S.

[0007]

The portion of the solenoid valve module 42 where the air supply / exhaust port 46 is provided is integrally formed of synthetic resin. Therefore, as shown in FIGS. 6 and 8, the outer wall of the air supply / exhaust port 46 is formed of a thin wall having a substantially cylindrical shape. On the other hand, when the pipe joint 48 is screwed into the port joints 47 and 50 locked in the air supply / exhaust port 46, it is necessary to tighten with a large torque. When the pipe joint 48 is screwed into the port joint 50 fixed to the air supply / exhaust port 46 with a large torque, the port joint 50 rotates about the portion fixed to the detent pin 51 engaged with the port joint 50. Move to. Then, a large force is applied from the port joint 50 to a specific portion of the outer wall of the air supply / exhaust port 46. As a result, a specific portion of the O-ring 52 attached to the port joint 50 is pressed, which may impair the airtightness. In addition, when the force applied to a specific side becomes excessive, a crack may occur in the air supply / exhaust port 46 made of synthetic resin.

The present invention has been made to solve the above problems, and an object thereof is to provide a pipe joint without fixing a cartridge type port joint attached to a supply / discharge port for supplying / discharging a fluid. (EN) Provided is a fixing structure for a cartridge type port joint of a supply / discharge port, which can be screwed and can prevent a force from acting on a specific side of the supply / discharge port during screwing.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 provides a pair of fluid supply and discharge.
A pair of interchangeable attachments to the supply / discharge port
Shape the cross section perpendicular to the axis of the port fitting to a non-circular cross-sectional shape.
And the openings of both the supply and discharge ports are provided.
Located on the surface that engages with the outer surfaces of both port joints.
And fix both port joints (11) to each other so that they cannot rotate.
A fixing plate having an engaging portion was provided.

The invention described in claim 2 is the same as that of claim 1.
Fixing structure for the cartridge type port joint of the supply / discharge port
In the construction, a flange is provided on the opening side of the port joint,
This flange keeps the fixing plate irremovable from the port joint.
I got it.

The invention described in claim 3 is the same as that of claim 1.
Fixing structure for the cartridge type port joint of the supply / discharge port
In the manufacturing process, the supply / discharge port is formed on the piping base,
Steps are formed on both sides of the supply / discharge port of the base, and the fixing plate
On both sides of the
It is configured so that the step portion is caulked. Also, in claim 4.
The described invention can be replaced with a supply / discharge port for supplying / discharging a fluid.
Non-circular cross section perpendicular to the axis of the port fitting attached to
And the opening and closing of the supply / discharge port.
Each of the port fittings is arranged on the surface on which the mouth is provided.
Engages with the outer surface to lock both port joints so that they cannot rotate
The fixing plate provided with the engaging portion is provided. Also, as described in claim 5.
The invention described above has a pair of supply / discharge ports for supplying / discharging fluid.
Axes of a pair of port fittings that are each replaceably mounted
Form a cross section perpendicular to the non-circular cross section,
Non-rotatable on the surface where the openings of both supply and discharge ports are provided
Fixed to each of the outer side surfaces of both port joints,
U-shaped engagement to fix the port joints to each other non-rotatably
An E-shaped fixing plate with a joint was provided.

[0012]

Therefore, according to the invention described in claim 1, one that is removably attached to the supply and discharge port for the supply and discharge of fluid
Each cross section perpendicular to the axis of the pair of cartridge type port joints is formed in a non-circular cross sectional shape. Further, the engaging portion provided on the surface provided with the opening of the supply / discharge port engages with each non-circular cross section of the port joint to fix both supply / discharge ports so that they cannot rotate relative to each other . As a result, the each of <br/> port fitting also screwed a pipe joint for communicating pipe tube <br/> both port fitting does not rotate.

[0013] Further, according to the invention described in claim 2, the supply and discharge
The fixing plate provided on the opening side of the port opens the port joint.
It is held in place by a flange provided on the mouth side.
You.

According to the invention described in claim 3, fixed
Since the fixing plate itself is fixed to the piping base by the piece,
There is no need to provide a flange on the port joint. Supply and discharge of fluid
A pair of covers that can be exchangeably attached to the
Each cross section perpendicular to the axis of the tri-ridge type port fitting is non-circular
Is formed into a cross-sectional shape. Further, according to the invention of claim 4,
According to this, it is necessary to install it on the surface where the opening and
The engaging part engages with the non-circular cross section of the port
Secure the port non-rotatably. As a result, the port fitting
Even if the pipe joint that connects the
The joint does not rotate. According to the invention of claim 5,
For example, after screwing the pipe joints on both port joints,
Can be removed.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a fixing structure of a cartridge type joint of an air supply / exhaust port in a pneumatic manifold type solenoid valve will be described with reference to FIGS.
Since the present embodiment is characterized by the fixing structure of the cartridge joint of the air supply / exhaust port, only the fixing structure will be described for convenience of description.

As shown in FIG. 1, a solenoid valve module 1 constituting a manifold type solenoid valve comprises a main valve switching section 2, a connecting base section 3, a piping base section 4 and a pair of upper and lower pilot valve sections 5A and 5B. Has been done. A connecting base portion 3 and a piping base portion 4 are provided on opposite sides of the main valve switching portion 2 so as to face each other. Both pilot valve portions 5A and 5B are connected to the connection base portion 3.
The connecting base portion 3 and the piping base portion 4 are integrally formed of synthetic resin.

The pipe base portion 4 is provided with an air supply passage 6 which forms a manifold. The air supply passage 6 communicates with the main valve switching unit 2. Also, the piping base 4
Includes a pair of air supply / exhaust ports 7A, 7 with the air supply passage 6 in between.
B is formed. Both the supply / exhaust ports 7A and 7B are similarly communicated with the main valve switching unit 2. The outer side walls forming the air supply / exhaust ports 7A and 7B are exposed to the outside. A lower portion on the opening side of the upper air supply / exhaust port 7A, and
A fitting insertion hole that penetrates from the outside of one of the supply / exhaust ports 7A, 7B through the inside of the supply / exhaust ports 7A, 7B to the outside of the other is provided in the upper portion of the lower supply / exhaust port 7B on the opening side. 8 is formed.

A fixed plate 9 made of a stainless steel plate is arranged on the opening side of both the air supply / exhaust ports 7A, 7B. Engaging holes 10 as engaging portions are formed above and below the fixing plate 9, respectively. Each of the engagement holes 10 is formed in a straight line shape in which both sides are parallel to each other, and both upper and lower sides thereof are formed in an arc shape. A cartridge type port joint 11 is inserted into each of the air supply / exhaust ports 7A and 7B through the respective engagement holes 10.

As shown in FIGS. 1 and 2, the port joint 11
Is formed of a columnar connecting portion 11A which is cut out in a plane shape whose both sides are parallel to each other, and a seal portion 11B which holds the O-ring 12 which is in close contact with the inside of the air supply / exhaust ports 7A and 7B. A disc-shaped flange 10a is provided on the front surface side of the connecting portion 11A. The cross-sectional shape of the connecting portion 11A is formed in the same shape as the engaging hole 10 of the fixed plate 9.
The port joint 11 is penetrated through in the axial direction to supply / exhaust passage 13
The female screw portion 14 is formed in the connecting portion 11A portion of the air supply / exhaust passage 13. Further, a groove 15 is formed on the entire outer circumference of the connecting portion 11A. Then, with the fixing plate 9 in contact with the opening side of the air supply / exhaust ports 7A, 7B of the solenoid valve module 2, the port joint 11 is fixed to the fixing plate 9.
When the engaging pin 16 is inserted into the air supply / exhaust ports 7A and 7B through the engaging hole 10 and the engaging pin 16 is inserted into the inserting hole 8, the engaging pin 16 is inserted into the groove 15. Engage.

Next, the operation of the fixing structure of the cartridge type joint of the air supply / exhaust port in the manifold type solenoid valve constructed as described above will be explained. To attach the cartridge type port joint 11 to the supply / exhaust ports 7A, 7B of each solenoid valve module 1, the supply / exhaust ports 7A, 7B
Both engaging holes 10 of the fixing plate 9 are provided on the opening side of the air supply / exhaust port 7
They are arranged so as to match the openings of A and 7B, and in this state, the port joint 11 is inserted through the engagement holes 10 into both the supply and exhaust ports 7.
Insert into A and 7B. Then, when the locking pin 16 is inserted into the fitting insertion hole 8 of the solenoid valve module 2, the locking pin 16 is engaged with the groove 15, so that the port joint 11 is fixed inside the air supply / exhaust ports 7A, 7B. Further, the fixing plate 9 is fixed by the flange 10a of the port joint 11. Furthermore, since the connecting portion 11A of the port joint 11 engages with the engagement hole 10 of the fixing plate 9, the port joint 11 is fixed so as not to rotate.

Next, the supply / exhaust port 7 is operated as described above.
A manifold type solenoid valve is constructed by connecting a required number of solenoid valve modules 2 each having a port joint 11 attached to A and 7B to a supply / exhaust module and end modules.

To attach the pipe joint 17 for connecting the pipe tube to the port joints 7A and 7B of each solenoid valve module 1 of this manifold type solenoid valve, the pipe joint 17 is attached to the female thread portion 14 of each port joint 11. Connect by screwing. At this time, even if a large torque acts on the port joints 11 by screwing the pipe joints 17 with a large torque, the respective port joints 11 are non-rotatably locked in the engagement holes 10 of the fixed plate 9. Since the engagement holes 10 formed at the separated positions of the fixed plate 9 are supported by the port joints 11, the port joints 11 are not deviated from the shaft center to a specific side.

As described above, according to the fixing structure of the cartridge type port joint of the air supply / exhaust port of the present embodiment, the cross section of the connecting portion 11A of the port joint 11 attached to the air supply / exhaust ports 7A, 7B of the solenoid valve module 2. Is formed in a cylindrical shape with both sides cut out in a plane shape parallel to each other. On the other hand, the port joint 1 is provided on the opening side of the supply / exhaust ports 7A and 7B.
As in the cross section of the first connecting portion 11A, the fixing plate 9 having the engaging holes 10 formed in straight lines having both sides parallel to each other and having arcuate upper and lower sides is arranged. Then, the port joint 11 is inserted into the engaging hole 10 of the fixed plate 9 and accommodated in the air supply / exhaust ports 7A, 7B. As a result, port fitting 1
When the pipe joint 17 is screwed into 1, the port joint 11 is locked in the engagement hole 10 so as not to rotate. Therefore, since the port joint 11 does not deviate from the shaft center to a specific side,
No force is applied to the specific side of the supply / exhaust ports 7A, 7B by the port joint 11. Therefore, the O-ring 12
Since the force is not concentrated on a specific part of the, the sealing performance is not impaired. Further, since an excessive force is not applied in the specific direction, the supply / exhaust ports 7A and 7B are not cracked.

Further, the fixing plate 9 is held by the flange 10a of the port joint 11 inserted through the engagement hole 10 so as not to fall off from the port joint 11. As a result, the fixing plate 9 can be easily fixed.

The present invention is not limited to the above embodiment, but can be carried out as follows. (1) Air supply / exhaust ports 7A, 7B of equipment that supplies and exhausts air
However, the structure may be fixed to the cartridge type port joint of the air supply / exhaust port for supplying / discharging other gas. Further, the fixing structure of the cartridge type port joint of the supply / discharge port for supplying / discharging a liquid such as hydraulic oil may be used.

(2) The structure is not limited to the manifold type solenoid valve 1 and may be applied to a fixed structure of the cartridge type port joint of the supply / exhaust port of a single solenoid valve. (3) As shown in FIG. 3, both sides of the fixing plate 9 are bent toward the solenoid valve module 1 side to form the fixing pieces 9a, and the fixing base 9 of the solenoid valve module 1 is connected to the supply / exhaust ports 7A, 7B side. A stepped portion 21 with which the fixed piece 9a is engaged may be formed on both sides, and the stepped portion 21 may be swaged by the fixed piece 9a. According to this configuration, the fixed piece 9a
As a result, the fixing plate 9 itself is fixed to the piping base portion 4, so it is not necessary to provide a flange on the port joint 22.

(4) As shown in FIG. 4 (a), the solenoid valve module 1 having the independent supply / exhaust port 23 is provided with the port joint 11 by the fixing plate 25 having only one engaging hole 24. It may be fixed.

(5) As shown in FIG. 4 (b), the fixing plate 26 is formed in a substantially “E” shape, and the two port joints 11 are connected by the “U” -shaped engaging portion 27. It may be configured to engage the portion 11A from the side and hold the portion 11A so that it cannot rotate. In this case, the fixing plate 26 can be removed after the pipe joints are screwed into the both port joints 11.

(6) The fixing plate 9 may be integrated into the piping base 4 formed of a synthetic resin by being incorporated in the opening side of the air supply / exhaust ports 7A, 7B. Further, the fixing plate 9 may be adhesively fixed to the opening surface side of the air supply / exhaust port of the pipe base portion. (7) As a material for forming the fixing plate 9, a metal plate other than a stainless plate, for example, rust preventive It may be a treated spring steel plate. In addition, for example, polyamide (PA),
Engineering plastic such as polycarbonate (PC) may be used.

(8) The shape of the engaging hole 10 of the fixed plate 9,
The cross-sectional shape of the connecting portion 11A of the port joint 11 does not have to be the same, and may be any shape as long as the port joint 11 inserted into the engagement hole 10 is non-rotatably locked. That is, for example,
The engagement hole 10 may be formed in an octagon, and the cross section of the connecting portion 11A may be a square that is non-rotatably engaged in the octagonal engagement hole 10. In addition, the shape of the engagement hole 10 may be a shape other than a circle, for example, a shape such as a square, a hexagon, and an ellipse.

In this specification, means and members relating to the constitution of the invention are defined as follows. (1) The fixed plate 9 is formed in a plate shape, and the supply / discharge port 7
The port joint 11 is arranged at the opening side of A and 7B and engages with the engaging portion 10 that engages with the cross section of the port joint 11 perpendicular to the axis.
Means a member for non-rotatably fixing the engaging portion 10 not only in the shape of a hole, but also the entire fixing plate is formed in an "E" shape, and the engaging portion is substantially a "U" shape. It also includes those formed in a shape.

[0032]

As described above in detail, the first and second claims
According to the invention of Item 4 , the pipe joint can be screwed without fixing the cartridge type port joint attached to the supply / discharge port for supplying / discharging the fluid, and the supply / discharge can be performed at the time of screwing. Forces can be prevented from acting on a particular side of the port. As a result, it is possible to prevent deterioration of airtightness due to application of force to a specific portion such as the O-ring of the port joint and damage to the supply / discharge port formed of synthetic resin or the like.

[0033] Further, according to the invention described in claim 2, the supply and discharge
The fixing plate provided on the opening side of the port opens the port joint.
It is held so as not to fall off by the flange provided on the mouth side,
The fixing plate can be easily fixed. Also, in claim 3.
According to the described invention, the fixing plate itself makes the piping plate
Since it is fixed to the base part, a flange is provided on the port joint.
Need not be. According to the invention of claim 5, both
After screwing the pipe joint into the port joint, remove the fixing plate.
It can be removed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an electromagnetic valve module of a manifold type electromagnetic valve which is an embodiment embodying a fixing structure of a cartridge type port joint of the present invention.

FIG. 2A is a front view in which a part of the solenoid valve module is sectioned, and FIG. 2B is a side sectional view.

FIG. 3 is a perspective view showing a fixing structure of a port joint of a solenoid valve module of another example.

FIG. 4A is a perspective view showing a fixing structure of a port joint of a solenoid valve module, and FIG. 4B is a perspective view of a fixing plate.

FIG. 5 is a perspective view showing a manifold type solenoid valve including a solenoid valve module of a conventional example.

FIG. 6 is a perspective view showing a state in which a pipe joint is attached to a port joint fixed to a supply / exhaust port of a solenoid valve module.

FIG. 7 is a cross-sectional view showing a state in which a port joint is fixed to an air supply / exhaust port.

FIG. 8 is a perspective view showing a state where the port joint is fixed to the air supply / exhaust port.

FIG. 9 is a sectional view showing a state in which a port joint is fixed to an air supply / exhaust port.

[Explanation of reference numerals] 4 ... Piping base portion, 7A, 7B ... Supply / exhaust port, 9 , 2
5,26 ... fixing plate, 9a ... fixing piece, 10, 24 ... engaging hole of the engaging portion, 11 ... port fitting, 10a ... furan <br/> di, 21 ... step portion, 27 ... engaging portion.

Claims (5)

(57) [Claims] 1. A pair of supply / discharge ports (7 ) for supplying / discharging a fluid.
A, 7B) with a pair of interchangeably attached
Cross section perpendicular to the axis of the port joint (11) is non-circular
In addition to being formed in a shape, both of the supply / discharge ports (7A, 7A
B) is arranged on the surface where the opening is provided,
To engage with the outer side surfaces of the joint (11) to connect both port joints (1
Equipped with an engaging portion (10) for fixing 1) to each other non-rotatably
Cartridge type port with a fixed plate (9)
Fixing structure for the heart joint. 2. The feeding / discharging port cartridge according to claim 1.
In the fixed structure of the wedge type port joint , the flange (11a) is provided on the opening side of the port joint (11).
Install the fixing plate (9) on this flange (11a).
Of the supply / exhaust port that holds the joint (11) in a non-separable manner.
Fixed structure of the port ridge type port joint. 3. The feed / exhaust port cartridge according to claim 1.
In the fixed structure of the wedge type port joint, the supply / discharge ports (7A, 7B) are formed in the piping base (4).
Of the supply / discharge ports (7A, 7B) of the piping base (4)
Steps (21) are formed on both sides, and both sides of the fixed plate (9) are formed.
Forming a fixing piece (9a) that engages with the step portion (21)
Then, tighten the step (21) with the fixing piece (9a).
Fixed structure of the cartridge type joint of the supply / discharge port configured in
Build. 4. A supply / discharge port (23) for supplying / discharging a fluid
On the axis of the port fitting (11) that is replaceably attached
Form a vertical cross section into a non-circular cross section and
Placed on the surface where the opening of the supply / discharge port (23) is provided
Are engaged with the outer side surfaces of the port joint (11) to
Engagement part for fixing the port joints (11) to each other so that they cannot rotate.
Cartridge of supply / discharge port provided with fixing plate (25) with
Fixed structure of the wedge type port joint. 5. A pair of supply / discharge ports (7) for supplying / discharging a fluid.
A, 7B) with a pair of interchangeably attached
Cross section perpendicular to the axis of the port joint (11) is non-circular
In addition to being formed in a shape, both of the supply / discharge ports (7A, 7A
B) fixed non-rotatably on the surface provided with the opening,
Each outer surface of both port joints (11) Engage with both ports
U-shape to fix the joints (11) to each other so that they cannot rotate.
E-shaped fixing plate (26) with the engaging portion (27) of
Of the cartridge type port joint of the supply / discharge port with the
Construction.