WO2004074730A1 - 管継手 - Google Patents
管継手 Download PDFInfo
- Publication number
- WO2004074730A1 WO2004074730A1 PCT/JP2003/001787 JP0301787W WO2004074730A1 WO 2004074730 A1 WO2004074730 A1 WO 2004074730A1 JP 0301787 W JP0301787 W JP 0301787W WO 2004074730 A1 WO2004074730 A1 WO 2004074730A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- socket
- valve
- pole
- fluid passage
- passage
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
- F16L37/36—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
- Y10T137/4245—Cleaning or steam sterilizing
- Y10T137/4259—With separate material addition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87917—Flow path with serial valves and/or closures
- Y10T137/87925—Separable flow path section, valve or closure in each
- Y10T137/87973—Coupling interlocked with valve, or closure or actuator
Definitions
- the present invention relates to a pipe joint particularly suitable for attaching and detaching a path for supplying a high-pressure fluid.
- a valve body that is manually opened and closed is built in as a pipe joint used for attaching and detaching the high-pressure fluid supply path, and the valve body is opened and closed after the connection between the socket and the plug that constitutes the pipe joint is completed.
- this main pipe joint there is a pipe joint described in Japanese Patent No. 2694432.
- the three valve bodies that constitute the inlet valve means, the vent valve means, and the outlet valve means are arranged in series inside, so the overall length becomes longer and the pressure loss increases, resulting in a larger pressure loss. As a result, there is a problem that the filling efficiency is deteriorated.
- valve body for opening and closing the fluid passage is a pole valve to reduce the pressure loss while making the whole compact.
- An object of the present invention is to provide a pipe joint that facilitates opening and closing operations of a pole valve, suppresses damage to a cylindrical seal body during rotation, and improves durability. is there.
- Another object of the present invention is to provide a pipe joint capable of recovering a purge fluid in the pipe joint and safely and easily separating a socket and a plug by collecting a purge fluid. To provide.
- the socket comprises a socket and a plug, which are provided with an appropriate locking mechanism and are detachably connected, and the socket fluid passage in the socket is opened and closed by a built-in poll valve.
- a cylindrical seal body for sealing between the pole valve and the inner wall of the socket fluid passage is provided in the primary fluid passage of the socket fluid passage through which fluid is supplied into the socket.
- a pipe joint which is disposed in pressure-contact with the poll valve, and which is rotatable in an open state when the socket and the plug are locked by the locking mechanism; Before the valve hole of the pole valve is opened in the socket fluid passage by the rotation of the pole valve, the fluid of the primary fluid passage of the socket fluid passage passes through the pole valve.
- Socket fluid passage 2 Wherein the sub-valve hole to be sent out to the side fluid passage.
- the secondary fluid path of the socket fluid path on the first surface is pressed by the tip of the plug inserted into the socket and retreated to the secondary side.
- a movable valve is provided to open the side fluid passage and to move forward by detaching the plug to close the secondary fluid passage.
- the ball rotation shaft for rotating the pole valve has a pole valve in the secondary fluid passage.
- a purge passage having a purge inlet opening into a secondary space formed between the valve and the movable valve and a purge outlet opening outside the socket fluid passage is formed. According to the difference in the rotation angle of the shaft, a state of communication with the fluid recovery passage provided in the socket and a state of non-communication can be obtained.
- the purge outlet and the fluid recovery passage are not in communication with each other when the angle is at an angle, and the purge outlet and the fluid recovery passage communicate with each other when the valve hole of the poll valve is at an angle that does not open in the socket fluid passage.
- the secondary fluid passage of the socket fluid passage is pushed backward by the tip of the plug inserted into the socket, and retreats to the secondary fluid passage.
- a movable valve is provided to open the fluid passage and move forward by detaching the plug to close the secondary fluid passage, so if the plug is not connected to the socket, rotate the pole valve.
- the pole rotation shaft for rotating the pole valve has a purge inlet opening into a secondary space formed between the pole valve and the movable valve in the secondary fluid passage, and a socket outside the fluid passage.
- a purge passage having an open purge outlet is formed, and the purge outlet can be in a state of communicating with a fluid recovery passage provided in the socket and a state of not communicating with the passage due to a difference in rotation angle of the pole rotation shaft.
- the communication port of the fluid recovery passage communicating with the purge outlet of the purge passage formed on the pole rotating shaft in the second surface has a purge outlet and a fluid recovery passage.
- a cylindrical sealing body that seals between the pole rotation shaft and the inner wall of the fluid recovery passage when the pole rotation shaft is not in communication with the pole rotation shaft.
- a pressure balance pressurizing member that applies a pressurized contact pressure that balances the pressurized contact pressure of the cylindrical seal member is disposed. It is characterized by the following.
- the purge outlet of the pole rotating shaft receives back pressure on both sides of the pole rotating shaft, the radial load on the pole rotating shaft is balanced, and the bending moment of the purge outlet of the pole rotating shaft is theoretically 0.
- the rotation operability of the pole rotating shaft and the sealing property of the cylindrical seal body can be improved.
- the locking mechanism of the socket and the plug on the second or third surface is fitted to the outer periphery of the distal end portion of the socket body and advances to center the locking element.
- a locking operation sleep that retreats and releases the press, and an engagement groove formed on the outer periphery of the plug and engaged with the lock
- the pole rotation shaft includes: A handle that rotates the pole rotation shaft outside the socket body and a cam that rotates integrally with the pole rotation shaft are supported.
- the cam has a first control unit and a second control unit.
- the locking operation sleeve is located at a position close to the second control portion of the cam when the locking operation sleeve is at the retracted position, and is engaged with the second control portion when the cam is to be rotated.
- the cam is separated from the force when the locking operation sleeve is in the forward position to allow rotation of the cam, and when the locking operation sleeve is in the forward position,
- the locking operation sleeve is locked to the first control part of the cam when the locking operation sleeve is to be retracted to prevent the locking operation sleeve in the advanced position from retreating.
- a part is provided.
- the cam in the fourth aspect has a shape in which a part of a disk is cut, an arc-shaped outer peripheral end is the first control portion, and a cut portion is a front end.
- the second control unit is provided.
- the first control unit and the second control unit can be easily manufactured, and the overall cost can be reduced.
- FIG. 2 is a plan view of the socket shown in FIG.
- FIG. 2 is a partially omitted bottom view of the socket shown in FIG.
- FIG. 4 is an explanatory cross-sectional view showing an operation state of a relationship between a pole valve used in the present example and a cylindrical seal disposed in a primary fluid passage of a socket fluid passage.
- FIG. 4 is an explanatory cross-sectional view showing an operation state of a relationship between a pole valve used in the present example and a cylindrical seal disposed in a primary fluid passage of a socket fluid passage.
- FIG. 4 is an explanatory cross-sectional view showing an operation state of a relationship between a pole valve used in the present example and a cylindrical seal disposed in a primary fluid passage of a socket fluid passage.
- FIG. 7 is a cross-sectional explanatory view showing an operation state of a relationship with a pressure balance pressurizing member arranged on the opposite side from FIG.
- FIG. 7 is a cross-sectional explanatory view showing an operation state of a relationship with a pressure balance pressurizing member arranged on the opposite side from FIG.
- a purge passage formed in a pole rotating shaft for rotating a pole valve used in the present embodiment Operating state of the relationship between the purge outlet of the cylinder and the cylindrical seal member arranged at the communication port of the fluid recovery passage and the pressure balance pressurizing member arranged on the side opposite to the pressure contact position of the cylindrical seal member FIG.
- FIG. 1 to 6 show an example of an embodiment of a pipe joint according to the present invention
- FIG. 1 is a longitudinal side view showing a state before connection of a socket and a plug in the pipe joint of the present example
- FIG. Figure 3 is a plan view of the socket
- Figure 3 is a partially omitted bottom view of the socket
- Figures 4 (A) to (C) are the pole valves used in this example and the primary fluid passage of the socket fluid passage.
- FIG. 5 is a cross-sectional explanatory view showing an operation state in relation to a cylindrical seal body
- FIGS. 5) to (C) show purge outlets of a purge passage formed in a pole rotation shaft for rotating a pole valve used in this example.
- FIG. 6 is a partially longitudinal side view showing a state after connection of a socket and a plug in the pipe fitting of this example. .
- the pipe joint of this example includes a socket 1 and a plug 2 that is detachably connected to the socket 1.
- the socket 1 includes a cylindrical socket body 3, and a socket fluid passage 4 is formed therein (inside a fixed cylindrical body 9 described later in more detail).
- the socket fluid passage 4 incorporates a pole valve 5 that opens and closes the socket fluid passage 4.
- One of the socket fluid passages 4 is supplied to the socket fluid passage 4 with the pole valve 5 interposed therebetween.
- the side fluid passage 4a is defined as a secondary fluid passage 4b for sending fluid from the socket fluid passage 4 on the other side.
- the pole valve 5 is configured to be rotated by a pole rotating shaft 6 vertically penetrating the socket body 3.
- the outer peripheral portion of the pole rotating shaft 6 that penetrates the pole valve 5 has a rectangular shape, and the pole valve 5 is rotated without slipping when the pole rotating shaft 6 rotates. You can get it.
- the pole valve 5 and the pole rotation shaft 6 are provided with a valve hole 7 that opens the socket fluid passage 4 so as to match the primary fluid passage 4a and the secondary fluid passage 4b.
- a guide 8 is provided between the pole rotation shaft 6 and the socket body 3.
- a fixed cylindrical body 9 having the inside as the primary fluid passage 4a is screwed, and a knockup ring is juxtaposed between the socket body 3 and the fixed cylindrical body 9. Sealed with a sealed ring 10.
- a cylindrical seal body 11 for sealing between the inner wall of the valve and the pole valve 5 is fitted, and this cylindrical seal body 11 is applied to the pole valve 5 by a spring 13 via a movable cylinder 12. It is urged to make pressure contact.
- the base end of the spring 13 is supported by a step 14 of the fixed cylinder 9.
- a seal ring 55 for sealing the outer peripheral surface of the movable cylinder 12 is provided on the inner wall of the fixed cylinder 9.
- the unit is provided with a locking mechanism 16 for connecting the socket 1 and the plug 2.
- the locking mechanism 16 has a plurality of locking element fitting holes 18 in which the locking elements 17 formed of poles or the like provided with the cylindrical body 15 spaced apart in the circumferential direction are fitted.
- a locking operation sleeve 19 for moving forward and pressing the lock 17 in the centripetal direction (inward of the radius), and retracting to release the lock moves in the axial direction. Fits freely.
- the locking operation sleeve 19 is urged in the forward direction by a spring 20.
- a stopper 56 is provided on the outer periphery of the distal end of the cylindrical body 15 so as to come into contact with the advancing locking operation sleeve 19 and to prevent the sleeve from coming off.
- a stopper / protective cylinder 21 is fixed to prevent the adhesion.
- the lock 17 is supported from the centripetal direction (radially inward) at the forward position, and retracts away from the lock 17 in the centripetal direction of the lock 17.
- Enable movement Collar 22 is fitted movably in the axial direction. The collar 22 is urged in the forward direction by the spring 23, and is pushed backward by the tip of the plug 2 when the socket 1 and the plug 2 are connected.
- a movable valve 24 that moves forward and closes the secondary fluid passage 4b is provided independently in the axial direction.
- the secondary fluid passage 4 b has a large diameter on the pole valve 5 side and a small diameter on the distal end side (the side opposite to the pole valve), and the movable valve 24 has a small diameter of the secondary fluid passage 4 b. Is slidably fitted in the socket body 3 which constitutes the portion.
- a secondary space 34 is formed between the pawl valve 5 and the movable valve 24.
- the movable valve 24 is formed of a cylindrical body having a front end opened and a rear end closed, a closed portion at the rear end serving as a valve head 25, a fluid passage 26 inside the cylinder, and a rear portion at the cylinder wall.
- a communication hole 27 communicating the inside and outside of the cylinder is formed on the end side.
- a cylindrical body 28 slidably fitted on the inner circumference of the collar 22 is slidably fitted on the outer periphery of the movable valve 24, and the cylindrical body 28 is The stop ring 57 provided at the tip of the movable valve 2 prevents further advance.
- the cylinder 28 is urged in the forward direction by a spring 29 interposed between the socket body 3 and the movable valve 24 is also advanced by the spring 29 via the cylinder 28.
- the valve head 25 is formed with a flange 30.
- the flange 30 is formed on a step 31 formed at the boundary between the large-diameter portion and the small-diameter portion of the secondary fluid passage 4b.
- the forward position of the movable valve 24 is regulated by the locking.
- the inner wall of the socket body 3 and the movable valve 2 are formed by the seal ring 32 attached to the inner wall of the socket body 3 constituting the small diameter side of the secondary fluid passage 4 b.
- a communication hole 2 7 formed in the cylinder wall is formed. Is opened to the large diameter side of the secondary fluid passage 4b, and the large diameter side of the secondary fluid passage 4b communicates with the fluid passage 26 of the movable valve 24, that is, the secondary fluid passage 4b Is open.
- the pole valve 5 is provided with a small-diameter sub-valve hole 33 penetrating through the valve hole 7, and the rotation of the pole valve 5 causes the valve hole 7 of the pole valve 5 to become Before opening in the socket fluid passage 4, first, the sub-valve hole 33 opens into the primary fluid passage 4 a of the socket fluid passage 4 (FIG. 4B), and the primary The fluid of the side fluid passage 4a flows from the sub-valve hole 33 through the gap between the inner wall of the pole valve 5 and the outer wall of the pole rotating shaft 6 to the secondary fluid of the socket fluid passage 4 including the outer peripheral surface of the pole valve 5. It can be sent out to passage 4b (dotted arrow in Fig. 1).
- the pole rotating shaft 6 for rotating the pole valve 5 vertically penetrates the socket body 3 as described above, and both ends of the pole rotating shaft 6 protrude outside the socket body 3.
- the pole rotation shaft 6 has a purge inlet 3 5a opening in the secondary space 34 formed between the pole valve 5 and the movable valve 24 in the secondary fluid passage 4b, and a socket. Outside the fluid passage 4, a purge passage 35 having a purge outlet 35b that opens at a portion protruding outside the socket body 3 in this example is formed.
- the socket body 3 is provided with a fluid recovery passage 36 for recovering the purged fluid on the side where the end of the pole rotating shaft 6 in which the purge passage 35 is formed projects.
- the fluid recovery passage 37 is fixed with a port 38 (FIG. 3).
- the end of the pole rotating shaft 6 in which the purge passage 35 is formed is formed in the fluid recovery passage body 37, and the opening end of the fluid recovery passage 36 whose one end is open to the fluid recovery passage body 37. It is airtightly inserted into the portion (more specifically, to a cylindrical seal member 39 described later disposed in the passage 36) so as to be orthogonal to the portion.
- the purge outlet 35 b is configured so that a state of communication with the fluid recovery passage 36 and a state of non-communication can be obtained due to a difference in rotation angle of the port rotation shaft 6.
- the rotation angle of 6 is the angle at which the valve hole 7 of the pole valve 5 opens in the socket fluid passage 4.
- the purge outlet 35b and the fluid recovery passage 36 are not in communication with each other, and when the valve hole 7 of the port valve 5 is at a closed angle in the socket fluid passage 4, the purge outlet 35b A state in which the fluid communication passage 36 communicates with the fluid recovery passage 36 is obtained. More specifically, when neither the valve hole 7 of the pole valve 5 nor the sub-valve hole 33 is open in the primary fluid passage 4a of the socket fluid passage 4 (FIG. 4A). ), The purge outlet 35 b is in communication with the fluid recovery passage 36 (FIG. 5A). By rotating the pole rotation shaft 6, the sub valve hole 33 of the pole valve 5 When opened in the primary fluid passage 4a (FIG.
- the purge outlet 35b is not in communication with the fluid recovery passage 36 (FIG. 5B), and the pole rotation shaft
- the purge outlet 35b is connected to the fluid recovery passage 3b. It is not in communication with 6 (Fig. 5C).
- the communication port of the fluid recovery passage 36 that can communicate with the page outlet 35b is connected to the pole rotating shaft 6.
- a cylindrical seal body 39 for sealing between the fluid recovery passage 36 and the inner wall is urged by a spring 40 via a movable cylindrical body 58 to be disposed in pressure contact with the pole rotating shaft 6.
- the fluid recovery passage body 37 has a pressurized contact of the cylindrical seal body 39 on the side opposite to the pressurized contact position of the cylindrical seal body 39 disposed in the fluid recovery passage 36.
- a pressure balance pressurizing body 41 for applying a pressurized contact pressure balanced with the contact pressure is arranged.
- the pressure balance pressurizing member 41 has the same diameter as the cylindrical seal member 39, and has the same spring as the spring 40 for urging the cylindrical seal member 39 via the movable cylindrical member 58. It is biased by the pressure spring 42.
- a handle 43 for rotating the pole rotation shaft 6 outside the socket body 3 is provided at the other end of the pole rotation shaft 6 protruding outside the socket body 3.
- a cam 4 which rotates integrally with the cam 4.
- the cam 4 4 has a shape in which a part of the disk is cut, and the arc-shaped outer peripheral end is controlled by the first control.
- the part 44 a and the cut part are the second control part 44 b.
- a holding plate 45 for holding the pole rotating shaft 5 so as not to come off from the socket body 3 is fixed to the socket body 3 with a port 46.
- a handle 47 for holding the socket 1 when the handle 43 for rotating the pole rotating shaft 5 is operated is fixed to the holding plate 45.
- the locking mechanism 17 is fitted to the tip of the socket body 3, that is, the outer periphery of the cylindrical body 15, and moves forward to lock the locking element 17.
- the locking operation sleeve 19 for holding down in the centripetal direction and retreating to release the holding is provided at a position close to the second control portion 44 b of the cam 44 when the locking operation sleeve 19 is at the retreat position.
- the cam 44 is rotated, the cam 44 is locked to the second control portion 44b to prevent the rotation of the cam 44, thereby preventing the pawl valve 5 from being opened.
- the cam 44 When the cam 19 is in the forward position, the cam 44 is separated from the cam 44 and the rotation of the cam 44 is enabled.Furthermore, when the locking operation sleeve 19 is in the forward position and the pawl valve 5 is open, the locking is performed. When the operation sleeve 19 is to be retracted, it is locked to the first control part 44 a of the cam 44 and moves forward. Locking part 5 0 is provided to deter retraction of the locking operation sleeve 1 9 in location.
- the locking portion 50 is fixed to the locking operation sleeve 19 by a stop ring 59, but may be formed integrally with the locking operation sleeve 19.
- the plug 2 connected to the socket 1 configured as described above has a lock engaging groove 51 with which the lock 17 is engaged at the outer periphery of the distal end portion. Also, the plug fluid passage 52 formed inside moves forward by the bias of the spring 53, closes the plug fluid passage 52, and retreats by the fluid pressure of the pressure fluid supplied from the socket 1. A movable valve 54 that opens the plug fluid passage 52 is provided.
- the pipe joint thus configured is in the state shown in FIG. 1 before the connection of the socket 1 and the plug 2.
- the valve hole 7 and the sub valve hole 33 of the pole valve 5 incorporated in the socket fluid passage 4 of the socket 3 do not open to the socket fluid passage 4.
- the socket fluid passage 4 is closed by a pole valve 5.
- the movable valve 24 in the secondary fluid passage 4 b of the socket fluid passage 4 is also at the forward position, and the secondary fluid passage 4 b is also closed by the movable valve 24.
- the locking operation sleeve 19 constituting the locking mechanism 16 is at the retracted position, and in this state, the handle 43 provided on the pole rotating shaft 6 for rotating the pawl valve 5 is operated.
- the cam 44 provided on the pawl rotating shaft 6 at the locking portion 50 provided on the locking operation sleeve 19 at the retracted position is the second one.
- the control section 44b locks to prevent the rotation of the cam 44, so that the pawl valve 5 cannot be opened.
- the purge outlet 35b of the purge passage 35 formed in the pole rotating shaft 6 is in communication with the fluid recovery passage 36 (FIG. 5A).
- a space between the fluid recovery passage 37, the holding plate 45 and the socket body 3 is sealed by a seal ring 48.
- the space between the pole rotating shaft 6 and the holding plate 45 is sealed by a seal ring 49.
- the space between the pole rotating shaft 6 and the fluid recovery passage body 37 is sealed by a seal ring 60.
- a guide 61 is provided between the pole rotation shaft 6 and the holding plate 45.
- a guide 62 is provided between the pole rotation shaft 6 and the fluid recovery passage 37.
- the lock operation sleeve 19 is urged by the spring 20 to move forward,
- the lock 17 is pressed in the centripetal direction, and the connection between the socket 1 and the plug 2 is completed.
- the movable valve 24 pushed back by the plug 2 opens the communication hole 27 formed in the cylindrical wall to the large-diameter side of the secondary fluid passage 4b, and the secondary fluid
- the large diameter side of the passage 4b communicates with the fluid passage 26 of the movable valve 24, that is, the secondary fluid passage 4b is opened.
- the locking operation sleeve 19 is in the forward position, and the locking portion 50 provided on the locking operation sleeve 19 and the cam are provided.
- a space is formed between the second control portion 44 b and the second control portion 44 b, the rotation of the cam 44 is prevented from being released, and the rotation of the cam 44 becomes possible.
- the pole valve 5 When the handle 4 3 is operated to rotate the pole rotation shaft 6, the pole valve 5 is also rotated with the rotation of the pole rotation shaft 6, and first, the sub-valve hole 3 3 is inserted through the cylindrical seal body 11.
- the primary fluid passage 4a of the socket fluid passage 4 To open into the primary fluid passage 4a of the socket fluid passage 4 to allow the fluid in the primary fluid passage 4a of the socket fluid passage 4 to flow from the sub valve hole 33 to the inner wall of the pole valve 5 and the pole rotation shaft. 6 through the gap with the outer wall of the pole valve 5 and is sent to the secondary fluid passage 4b of the socket fluid passage 4 including the outer peripheral surface of the pole valve 5 (FIG. 4B). Then, it is opened in the socket fluid passage 4 and the socket fluid passage 4 is opened (FIG. 4C).
- the purge outlet 35 b of the purge passage 35 formed in the pole rotating shaft 6 that has been in communication with the fluid recovery passage 36 When the pole rotation shaft 6 is rotated in the direction in which the pole valve 5 is opened, the fluid recovery passage 36 is not communicated with the fluid (FIG. 5C). Therefore, when the fluid is supplied to the plug 2, the fluid flowing through the socket fluid passage 4 does not flow from the purge passage 35 to the fluid recovery passage 36.
- the pole rotating shaft 6 is affected by the fluid pressure existing in the purge passage 35, but the pole rotating shaft 6 has a fluid recovery passage communicating with the purge outlet 35b of the purge passage 35.
- a pressure contact pressure balanced with the pressure contact pressure of the cylindrical seal body 39 is applied to the side opposite to the pressure contact position of the cylindrical seal body 39 arranged at the communication port of the passage 36. Since the pressure balance pressurizing member 41 is disposed, the purge outlet 35b of the pole rotating shaft 6 receives back pressure on both sides of the pole rotating shaft 6, and the radial load of the ball rotating shaft 6 is reduced. Balancing, the bending moment at the purge outlet 35b of the pole rotating shaft 6 becomes theoretically 0, and the rotation operability of the pole rotating shaft 6 and the sealing performance of the cylindrical seal body 39 can be improved. It has become something.
- the fluid recovery passage 36 are in communication with each other.Before the locking sleeve 19 is retracted to separate the socket 1 and the plug 2, first the secondary fluid passage 4b of the socket fluid passage 4b The fluid on the plug 2 side is recovered from the fluid recovery passage 36 through the purge passage 35 formed in the pole rotation shaft 6. At this time, since the valve hole 7 and the sub-valve hole 33 completely pass through the sealing surface of the cylindrical seal body 11, the fluid can be recovered through the purge passage 35. Excessive wear of the seal body 11 is suppressed.
- the pressure in the secondary fluid passage 4 b of the socket 1 decreases, and the movable valve 54 provided in the plug fluid passage 52 of the plug 2 is urged by the spring 53 to move forward. Then, since the plug fluid passage 52 is closed, the fluid in the secondary fluid passage 4b and the tip of the plug 2 can be recovered, and then the locking operation sleeve 19 is retracted. Thus, the socket 1 and the plug 2 can be safely and easily separated.
- the locking element 17 moves in the centripetal direction, and the locking operation sleeve 19 moves forward.
- the cam 44 can be rotated, and even if the pawl valve 5 is rotated by operating the handle 43 to open the socket fluid passage 4, even if the socket fluid passage 4 of the socket 1 is opened.
- the movable valve 24 provided in the secondary fluid passage 4 b moves forward and the secondary fluid passage 4 b of the socket fluid passage 4 The closed state prevents the outflow of fluid.
- the socket fluid passage in the socket is opened and closed by the built-in pole valve, and the fluid is supplied into the socket.
- a cylindrical seal body for sealing between the pole valve and the inner wall of the socket fluid passage is disposed in pressure contact with the pole valve.
- the secondary fluid passage of the socket fluid passage includes a plug which is pushed back by a tip of the plug inserted into the socket and retreats to open the secondary fluid passage.
- a movable valve is provided to move forward and close the secondary side fluid passage by detachment of the valve, so if the plug is not connected to the socket and the pole valve is rotated, even if the pole valve is opened , From the primary fluid passage to the secondary fluid passage The flowed fluid is prevented from leaking out of the socket by the movable valve closing the secondary fluid passage.
- the pole rotation shaft for rotating the pole valve has a purge inlet opening in a secondary space formed between the ball valve and the movable valve in the secondary fluid passage, and an outside of the socket fluid passage.
- a purge passage having an open purge outlet is formed, and the purge outlet can be in a state of communicating with a fluid recovery passage provided in the socket and a state of not communicating with the fluid recovery passage provided in the socket due to a difference in rotation angle of the pole rotation shaft.
- the purge outlet communicates with the fluid recovery passage, and the fluid on the secondary fluid passage and the plug side of the socket is rotated by the pole rotation.
- the fluid can be recovered from the fluid recovery passage through the purge passage formed in the spindle, and the socket and the plug can be separated by recovering the fluid on the secondary fluid passage and the plug side of the socket. It can be done safely and easily.
- the purge outlet and the fluid recovery passage communicate with the communication port of the fluid recovery passage that communicates with the purge outlet of the purge passage formed in the port rotation shaft.
- the cylindrical sealing body that seals between the pole rotation shaft and the inner wall of the fluid recovery passage is disposed in pressure contact with the pole rotation shaft.
- a pressure balance pressurizing body for applying a pressurized contact pressure balanced with the pressurized contact pressure of the cylindrical seal is disposed.
- the purge outlet of the pole rotating shaft receives back pressure on both sides of the pole rotating shaft, the radial load of the pole rotating shaft is balanced, and the bending moment at the purge outlet of the pole rotating shaft becomes theoretically 0.
- the pole times Improved sealing of the rotating operation of the improvement and the tubular seal body axis can be achieved.
- the socket in the locking mechanism for the socket and the plug, the socket is fitted to the outer periphery of the distal end portion of the socket body, and moves forward to hold the lock in the centripetal direction.
- a locking operation sleeve for retreating and releasing the presser, an engagement groove formed on the outer periphery of the plug and engaging with the locking element, and the pole rotating shaft has a pole rotating outside the socket body.
- a handle for rotating the shaft and a cam that rotates integrally with the pawl rotation shaft are supported.
- the cam includes a first control unit and a second control unit, and the locking operation sleeve When the locking operation sleeve is in the retracted position, the cam is in a position close to the second control unit, and when the cam is to be rotated, the cam is locked by the second control unit to prevent rotation of the cam.
- the opening operation of the pawl valve is prevented, the cam is separated from the cam when the locking operation sleeve is in the forward position, and the rotation of the cam is enabled.
- a locking portion is provided to lock the first control portion of the cam to prevent the locking operation sleeve in the advanced position from retreating.
- the cam has a shape in which a part of a disk is cut, an arc-shaped outer peripheral end is the first control portion, and a cut portion is the second control. Since the first control unit and the second control unit are easily manufactured, the cost can be reduced as a whole.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03705325A EP1596119B1 (en) | 2003-02-19 | 2003-02-19 | Fitting |
DE60322439T DE60322439D1 (de) | 2003-02-19 | 2003-02-19 | Anschlussstück |
US10/541,365 US7306007B2 (en) | 2003-02-19 | 2003-02-19 | Pipe coupling including ball valve |
CA 2513335 CA2513335C (en) | 2003-02-19 | 2003-02-19 | Pipe coupling |
PCT/JP2003/001787 WO2004074730A1 (ja) | 2003-02-19 | 2003-02-19 | 管継手 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/001787 WO2004074730A1 (ja) | 2003-02-19 | 2003-02-19 | 管継手 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004074730A1 true WO2004074730A1 (ja) | 2004-09-02 |
Family
ID=32894224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/001787 WO2004074730A1 (ja) | 2003-02-19 | 2003-02-19 | 管継手 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7306007B2 (ja) |
EP (1) | EP1596119B1 (ja) |
CA (1) | CA2513335C (ja) |
DE (1) | DE60322439D1 (ja) |
WO (1) | WO2004074730A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3983713B2 (ja) * | 2002-06-28 | 2007-09-26 | 日東工器株式会社 | 管継手 |
FR2950949B1 (fr) | 2009-10-01 | 2012-06-22 | Staubli Sa Ets | Element femelle de raccord rapide et raccord rapide incorporant un tel element |
US8544500B2 (en) * | 2010-05-18 | 2013-10-01 | Ckd Corporation | Coupling apparatus for chemical fluid flow channel |
US8720487B2 (en) * | 2010-10-19 | 2014-05-13 | Robert Charles Cooley | Grease delivery receiver and nozzle couplable without fluid pressure bleed-down and having pressurization lockout and flush face coupling |
US9314824B2 (en) * | 2013-11-08 | 2016-04-19 | Mks Instruments, Inc. | Powder and deposition control in throttle valves |
JP6482638B1 (ja) * | 2017-12-14 | 2019-03-13 | 中国工業株式会社 | バルブ及び圧力容器 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994013990A1 (en) | 1992-12-07 | 1994-06-23 | Parker-Hannifin Corporation | Push-to-connect coupler with interlocking three-way valve |
JPH0882395A (ja) * | 1994-09-09 | 1996-03-26 | Kazuo Yano | 開閉弁付きプラグイン接続型管継手装置 |
US6089539A (en) * | 1997-10-06 | 2000-07-18 | Nitto Kohki Co., Ltd. | Valved pipe coupling for fluid lines |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS543159A (en) | 1977-06-09 | 1979-01-11 | Kensaku Nakamura | Resin swich valv |
US4125128A (en) * | 1977-11-10 | 1978-11-14 | Westinghouse Air Brake Company | Vented ball-type cut-out cock |
US4548237A (en) * | 1983-12-14 | 1985-10-22 | General Signal Corporation | Ball valve with improved vent structure |
WO1989000655A1 (en) | 1987-07-17 | 1989-01-26 | Erwin Weh | Pressure-tight plug coupling |
KR900702292A (ko) | 1988-05-05 | 1990-12-06 | 베흐 에르빈 | 압축 밀폐된 플러그 커플링 |
US5148839A (en) * | 1992-05-06 | 1992-09-22 | Kirwan Lee D | Valve assemblies for filling containers with pressurized gas |
JPH083357A (ja) | 1994-06-16 | 1996-01-09 | Suzuki Sogyo Co Ltd | 生分解性樹脂発泡体並びにその製造方法並びにその製造装置 |
US5785074A (en) * | 1997-01-02 | 1998-07-28 | Nibco, Inc. | Vented ball valve with lock-out ring |
JP3983713B2 (ja) * | 2002-06-28 | 2007-09-26 | 日東工器株式会社 | 管継手 |
-
2003
- 2003-02-19 US US10/541,365 patent/US7306007B2/en not_active Expired - Lifetime
- 2003-02-19 CA CA 2513335 patent/CA2513335C/en not_active Expired - Lifetime
- 2003-02-19 DE DE60322439T patent/DE60322439D1/de not_active Expired - Lifetime
- 2003-02-19 EP EP03705325A patent/EP1596119B1/en not_active Expired - Lifetime
- 2003-02-19 WO PCT/JP2003/001787 patent/WO2004074730A1/ja active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994013990A1 (en) | 1992-12-07 | 1994-06-23 | Parker-Hannifin Corporation | Push-to-connect coupler with interlocking three-way valve |
JPH0882395A (ja) * | 1994-09-09 | 1996-03-26 | Kazuo Yano | 開閉弁付きプラグイン接続型管継手装置 |
US6089539A (en) * | 1997-10-06 | 2000-07-18 | Nitto Kohki Co., Ltd. | Valved pipe coupling for fluid lines |
Non-Patent Citations (1)
Title |
---|
See also references of EP1596119A4 |
Also Published As
Publication number | Publication date |
---|---|
US20060108009A1 (en) | 2006-05-25 |
US7306007B2 (en) | 2007-12-11 |
EP1596119A4 (en) | 2007-09-19 |
EP1596119A1 (en) | 2005-11-16 |
EP1596119B1 (en) | 2008-07-23 |
CA2513335A1 (en) | 2004-09-02 |
DE60322439D1 (de) | 2008-09-04 |
CA2513335C (en) | 2009-06-02 |
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