JP2016053390A - Female-type pipe joint member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a female-type pipe joint member capable of implementing an opening/closing operation of a valve regardless of an arrangement direction thereof.SOLUTION: A female-type pipe joint member has a valve operation member 20 disposed in a state of surrounding the circumference of an outer peripheral face of a housing 16, a guide hole 22A penetrating through a housing 16 in a direction intersecting a fluid passage 12, a valve element 18 opening and closing the fluid passage by sliding in the same direction in the guide hole, a pair of cam pin insertion holes 16A-4 disposed at both sides of the guide hole 22A in the direction orthogonal to the direction and intersecting the fluid passage 12, and formed while penetrating through the housing 16, a cam pin 24 extending from the valve element 18 through the cam pin insertion holes 16A-4, and having an end portion exposed to an outer side of the housing, and a valve operation cam mechanism disposed on the valve operation member 20, and composed of a cam contour portion 20A slidably engaged with an end portion of the cam pin. The valve element is displaced to open and close the passage by relative displacement of the cam contour portion and the cam pin by sliding of the valve operation member on the housing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a female pipe joint member, and more particularly to a valve device that opens and closes a fluid passage when a flat valve body is displaced in a transverse direction with respect to the fluid passage of the female pipe joint member. The present invention relates to a provided female pipe joint member.

  In this type of female pipe coupling member, the valve body is set so that a part of the valve body protrudes outside the female pipe coupling member. The fluid passage is opened and closed by pushing or returning the pipe joint member (Patent Documents 1 and 2). In such a female pipe joint member, when it is installed in the piping facility, the protruding portion of the valve body is not always in a position where it is easy for the operator to operate, so that the valve can be opened and closed. May be difficult to do.

  On the other hand, the female pipe joint member provided with a spherical valve and provided with a valve device that opens and closes the fluid passage by the rotation of the spherical valve is provided with means for solving the above-described problems. Have been developed (Patent Documents 3 and 4). That is, in this female pipe joint member, a valve operating sleeve that can be operated regardless of the setting direction of the female pipe joint member is attached to the outside, and the valve operating sleeve is operated to operate the cam pipe mechanism. Thus, the valve body is displaced to open and close the fluid passage.

U.S. Pat. No. 4,354,663 WO2014 / 050929 JP-A-11-108279 JP 2001-116178 A

  The present invention provides a female pipe joint member provided with a valve device having a flat plate-like valve element disclosed in Patent Documents 1 and 2, and includes a spherical valve element disclosed in Patent Documents 3 and 4. The valve operating mechanism employed in the female pipe joint member is adopted as a simpler structure, which solves the above-described problems in the female pipe joint member as disclosed in Patent Documents 1 and 2, and the female pipe joint. It is intended to facilitate the assembly of the members.

That is, the present invention
A female fitting member that receives and is coupled to a male fitting member,
A cylindrical housing having a fluid passage penetrating from one end to the other, and receiving a male fitting member from the one end;
A valve body that opens and closes the fluid passage by being displaced in a first direction transverse to the longitudinal axis of the fluid passage of the housing;
A valve operating member provided so as to surround the outer peripheral surface of the housing and slidably mounted on the outer peripheral surface;
A guide hole that extends linearly through the housing in the first direction, and the valve body is displaceably accommodated in the first direction so that the fluid passage can be opened and closed by the valve body. A pair of cam pin insertion holes provided through the housing on both sides of the guide hole in a second direction perpendicular to the first direction and crossing the fluid passage, and the guide hole A cam pin extending from the valve body housed within the valve body and extending through the pair of cam pin insertion holes and exposed to the outside of the housing; and a slide provided on the valve operating member and the end of the cam pin. A valve operating cam mechanism comprising a cam contour portion that is dynamically engaged, wherein the valve body is displaced by relative displacement between the cam contour portion and the cam pin by sliding the valve operating member on the housing. To open and close the passage. And the valve operation cam mechanism,
A female pipe joint member is provided.

  The valve operating member in the female pipe joint member is provided so as to surround the outer peripheral surface of the housing as described above, and the female pipe joint member is arranged in any direction in the piping facility. At any rate, the operator can operate the valve operating member to open and close the valve.

In particular,
The housing is
A guide setting hole penetrating in the first direction;
A cylindrical valve guide that is inserted into and fixed to the guide setting hole from its one end opening and demarcates the guide hole, and is inserted into the guide setting hole and fixed in the state where the guide hole and the pair of guide holes are fixed. A valve guide having a pair of communicating portions communicating with the cam pin insertion hole;
It can be made to have.

  By doing so, the housing is a cylindrical member, whereas a guide hole for properly guiding the valve body is set only by inserting and fixing the valve guide into the guide setting hole provided in the housing. Make it possible.

in this case,
The cam pin is formed as one elongated pin, and penetrates the pin holding hole provided in the valve body through the cam pin insertion hole and the communication portion with respect to the valve body housed in the valve guide inserted in the guide setting hole. Therefore, it can be attached to the valve body.

  To assemble this female pipe joint member, the valve body is slidably accommodated in the guide hole of the cylindrical valve guide and set in the housing, and then the cam pin is set as described above. Therefore, the assembly of the female pipe joint member can be facilitated.

More specifically,
A cylindrical first housing portion in which the housing has the guide setting hole;
A cylindrical second housing portion coaxially fitted and connected to the first housing portion;
Have
The second housing part can be fitted and connected to the first housing part to engage the valve guide inserted into the guide setting hole to fix the valve guide. .
By doing in this way, the said female type pipe joint member can be assembled more easily.

More specifically,
The guide setting holes have a pair of setting sliding surfaces that are spaced apart from each other in the direction of extension of the longitudinal axis of the fluid passage and extend so as to be orthogonal to the longitudinal axis of the fluid passage;
The valve guide has a pair of valve guide side surfaces that are slidably engaged with the setting sliding surface, has a passage opening that penetrates from one of the valve guide side surfaces to the other and intersects the guide hole, With the valve guide set in the guide setting hole, the guide holes are spaced from each other in the direction of extension of the longitudinal axis of the fluid passage so that each is perpendicular to the longitudinal axis of the fluid passage. Having a pair of extending guide surfaces and the passage opening being adapted to align with the fluid passage;
The valve body has a flat plate shape having a pair of valve body side surfaces slidingly engaged with the guide surface, and has an opening penetrating from one side of the valve body side to the other, and the opening is aligned with the fluid passage. It can be displaceable between an open position to close and a closed position in which the opening does not align with the fluid passage and closes the fluid passage.

in this case,
The valve guide has seal rings respectively attached to the passage openings on both sides of the guide hole, and each of the valve guides is slidably and slidably engaged with the side surface of the valve body. The other seal ring is pressed between the tip of the second housing part connected and fitted to the valve guide, and the valve guide. It can be made to press between.
By doing in this way, what combined the valve body and the seal ring with the valve guide can be integrally set to the housing, and the assembly of the female pipe joint member becomes easier.

Moreover, in the female pipe joint member as described above,
A locking hole penetrating the housing in a radial direction with respect to the fluid passage between the one end of the fluid passage and the guide hole;
A locking element set in the locking hole, the male protruding partly radially inward from the inner peripheral surface of the housing and inserted into the fluid passage from the one end of the fluid passage to the coupling position. A locking position that engages with a locking recess formed on the outer peripheral surface of the mold pipe coupling member and prevents the male pipe coupling member from coming out of the fluid passage, and an outer position than the locking position and from the locking recess. A locking element that allows disengagement of the male fitting member from the fluid passage and is displaceable between a locking release position that allows insertion into the fluid passage;
A cylindrical locking element holding member that is slidable in the extending direction of the longitudinal axis along the inner peripheral surface of the housing, and is in a position radially inward of the locking element and is engaged with the locking element. In combination, the locking element holding position for holding the locking element at the unlocking position and the outer peripheral surface of the male fitting member inserted from one end of the fluid passage are pushed in and released from the locking element. A locking element holding member that is displaceable between a locking element release position that enables the locking element to be in the locking position;
A coil spring set so as to extend in the extending direction of the longitudinal axis along the inner peripheral surface of the housing and biasing the locking element holding member from the locking element release position to the locking element holding position; A spring end guide ring that is attached to one end of the coil spring adjacent to the locker holding member and guides the one end along the inner peripheral surface of the housing; and the spring end guide ring holds the locker holding member The locking element holding member is urged to the locking element holding position by abutting the member in the extending direction of the longitudinal axis, and the spring end guide ring is locked by the male pipe joint member. A coil spring adapted to be pushed in while contracting the coil spring in the fluid passage by the lock holding member displaced from the child holding position to the lock releasing position;
A locking sleeve provided on the outer peripheral surface of the housing so as to be slidable in the extending direction of the longitudinal axis, and engages the locking element from the outside in the radial direction when the locking element is in the locking position. Then, the locking element that is displaceable between a locking element pressing position that presses and holds the locking element at the locking position and a locking element pressing release position that allows the locking element to be displaced to the locking release position. Sleeve,
And a spring member that urges the locking sleeve toward the locking element pressing position.

  By doing so, when the male pipe joint member is properly inserted into the fluid passage of the female pipe joint member from one end thereof to the connecting position, the lock engages with the locking recess of the male pipe joint member, The locking sleeve is brought into the locking element pressing position by the spring member, and the connection between the male pipe joint member and the female pipe joint member is completed.

  The locker holding member and the spring end guide ring are separate members when the male pipe fitting member is inserted into the fluid passage of the female pipe fitting member in an oblique state. And the spring end guide ring are integrated with each other, the lock spring holding member is also moved from the lock holder holding position while the coil spring is contracted by the male pipe joint member inserted in an inclined state. Displacement in the direction of the holding release position and the lock element is displaced to the lock position and pressed by the lock sleeve and fixed at the lock position, and the operator notices that the male fitting member is not properly inserted. Even if the pipe fitting member is pulled out from the fluid passage, if you try to insert the male pipe fitting member again, it will not be possible to insert the male pipe fitting member because it will interfere with the lock in the locked position. When inserted diagonally, the tip of the male fitting is engaged with the spring end (spring end guide ring) so that only the coil spring is contracted, and the lock holding member is in the lock holding position. The reason is to stay in.

in this case,
In a state where the locking sleeve is in the locking element pressing release position, the valve member is in a closed position for closing the fluid passage, and the valve operating member is engaged with the locking sleeve to release the fluid passage. Displacement to displace the valve member to an open position is prevented, the male fitting member is inserted into the fluid passage and the locking element engages with a locking recess of the male fitting member Thus, when the locking sleeve is in the locking element pressing position, the valve operating member can be displaced on the outer peripheral surface of the housing in order to displace the valve member to the open position for releasing the fluid passage. Can be.

  By doing so, the fluid passage can be released only in a state where the male pipe joint member is connected to the female pipe joint member, and the connection operation of the pipe joint can be performed safely.

  Further, in order to safely perform the disconnection operation of the pipe joint, when the valve member is displaced and the fluid passage is opened, the valve operating member covers the locking sleeve at the locking element pressing position. The valve operating member is shaped so that the valve operating member does not displace the valve member to close the fluid passage from the locking element pressing position of the locking sleeve to the locking element pressing release position. It is also possible to prevent displacement.

In the above female pipe joint member,
The valve body is a purge hole for releasing the pressure in the fluid passage to the outside, and one end of the valve body opens on the outer peripheral surface of the valve body, and the other end faces the one end side of the fluid passage. And the other end is in a position communicating with the one end side of the fluid passage when the valve body is in a position to close the fluid passage, and the valve body is in a position in which the fluid passage is released. In some cases, the other end may have a purge hole that is positioned to be blocked from the fluid passage.
By removing the male fitting member from the female fitting member and displacing the valve body so that the fluid passage is closed, the fluid pressure in the male fitting member is discharged from the purge hole, and therefore The male pipe joint member can be detached from the female pipe joint member in a safe state where no pressure is applied.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

FIG. 1 is a longitudinal sectional view of a female pipe joint member according to the present invention, showing a state where a male pipe joint member is not inserted. FIG. 2 is a longitudinal sectional view of the female pipe joint member, showing a state in which the male pipe joint member is inserted and connected. FIG. 3 is a longitudinal sectional view of the female pipe joint member, showing a state where the valve operating portion is slightly moved in the axial direction in order to place the valve body in the open position of the fluid passage. FIG. 4 is a vertical cross-sectional view of the female pipe joint member, showing a state of the valve operating portion in a state where the valve body is displaced to the closed position of the fluid passage. FIG. 5 is a perspective view of the valve guide of the female pipe joint member. FIG. 6 is a perspective view of the valve body of the female pipe joint member. FIG. 7 is a perspective view showing a state in which the valve body is set in the valve guide. FIG. 8 is a side view of the female pipe joint member corresponding to FIG. FIG. 9 is a side view of the female pipe joint member corresponding to FIG. FIG. 10 is a view showing a state where the male pipe joint member is being inserted into the female pipe joint member. FIG. 11 is a perspective view showing the female pipe joint member in a state where the male pipe joint member is connected. FIG. 12 is a longitudinal sectional view showing a state in which a male pipe joint member is connected to a female pipe joint member according to another embodiment.

  As shown in FIG. 1, a female pipe coupling member 10 according to the present invention includes a cylindrical housing 16 having a fluid passage 12 penetrating from one end to the other end as main constituent elements, and a longitudinal axis of the fluid passage 12. A valve body for opening and closing the fluid passage 12 by displacing in a first direction (vertical direction in the illustrated example) Y crossing X and communicating or blocking the valve hole 18A with respect to the fluid passage 12. 18 and a cylindrical valve operating member 20 attached around the housing 16 for operating the valve body 18 and displaceable in the extending direction of the longitudinal axis X.

  The illustrated housing 16 includes a first housing portion 16A and a cylindrical second housing portion 16B that is coaxially screwed and connected to the first housing portion 16A. The first and second housings 16A, The inner peripheral surfaces 16A-1 and 16B-1 of 16B are aligned in the axial direction to define the fluid passage 12. The inner peripheral surface 16A-1 of the first housing portion 16A has a diameter larger than that of the inner peripheral surface 16B-1 of the second housing portion 16B so as to receive the distal end portion 14A of the male pipe joint member 14. . That is, although the term “fluid passage” is used in the present specification, a part of the fluid passage functions as a male pipe joint member connecting portion for receiving and connecting the distal end portion 14A of the male pipe joint member 14. doing.

  The housing 16 further includes a valve guide 22 inserted and fixed in a valve guide setting hole 16A-2 provided so as to penetrate the first housing portion 16A in the first direction Y. The valve guide 22 Has a guide hole 22A penetrating in the first direction Y, and the valve element 18 is set to be slidable in the first direction Y within the guide hole 22A. Specifically, the guide setting holes 16A-2 are a pair of setting sliding surfaces that are spaced apart from each other in the direction of extension of the longitudinal axis X of the fluid passage 12 and extend so as to be orthogonal to the longitudinal axis X, respectively. 16A-3, the valve guide 22 has a pair of valve guide side surfaces 22B that are slidably engaged with the setting sliding surface 16A-3, and penetrates from one of the valve guide side surfaces 22B to the other. The passage opening 22C intersects the guide hole 22A, and seal rings 22D are attached to both sides of the guide hole 22A in the passage opening 22C.

  More precisely, the valve guide 22 has a box-shaped outer shape as shown in FIG. 5 and is not clearly shown in FIGS. The half portion 22E is slightly larger in outer dimension than the lower half portion 22F over the entire circumference. Therefore, the valve guide side surface 22B is slightly shifted from the upper half portion 22B-1 and the upper half portion. 22B-2. Accordingly, the setting sliding surface 16A-3 also has the upper half portion 22B-1 and the lower half portion 22B of the guide valve side surface 22B in a state where the valve guide 22 is set in the valve guide setting hole 16A-2. The portions in contact with -2 are slightly shifted from each other. In other words, the interval between the setting sliding surfaces 16A-3 facing each other (in the extending direction of the longitudinal axis X) in the upper half portion of the valve guide setting hole 16A-2 as viewed in FIG. It is larger than the interval between the setting sliding surfaces 16A-3 facing each other in the lower half of the setting hole 16A-2. In order to insert and set the valve guide 22 into the valve guide setting hole 16A-2, the valve guide 22 is set from the upper side where the size of the valve guide setting hole 16A-2 is larger with the lower half portion side having a smaller size facing down. This is because the valve guide 22 can be easily inserted. In the illustrated example, the valve guide 22 inserted into the valve guide setting hole 16A-2 in this way is screwed into the first housing portion 16A and engaged with a recess 22G provided on the valve guide side surface 22B. The tip of the second housing part 16B is prevented from being displaced in the first direction Y.

  As shown in FIG. 6, the valve body 18 has a flat plate shape with a substantially rectangular cross section corresponding to the guide hole 22 </ b> A of the valve guide 22, and the longitudinal axis X in the set state shown in FIGS. 1 to 4. A valve body side surface 18B is provided which is spaced from and parallel to each other in the extending direction, and the valve hole 18A is provided so as to penetrate from one side of the valve body side surface 18B to the other.

  The valve element 18 is operated by the valve operating member 20 via a cam mechanism as described below. In other words, this cam mechanism has a second direction (the direction of the front and back of the drawing) perpendicular to the first direction Y and crossing the fluid passage 12 when the valve body 18 is in the state shown in FIGS. And a cam pin 24 extending from the valve body 18 so as to extend to the outside of the housing 16 and provided in the housing 16 (specifically, the first housing portion 16A) in the second direction to pass the cam pin 24 to the outside of the housing 16. From the valve body 18, the cam pin insertion hole 16A-4 (FIGS. 8 and 9), the valve guide 18 and the communication portion 22H (FIG. 5) provided to communicate the guide hole 22A and the cam pin insertion hole 16A-4. It consists of a cam contour portion 20A provided on the valve operating member 20 that is slidably engaged with the end portion of the cam pin 24 extending to the outside of the housing 16 through the communication portion 22H and the cam pin insertion hole 16A-4. Specifically, the communication portion 22H and the cam pin insertion hole 16A-4 are linearly provided in parallel to the direction in which the valve body 18 is displaced (first direction Y) and are aligned with each other in the second direction. On the other hand, the cam contour portion 20A extends through the valve operating member 20, and the cam contour portion 20A extends obliquely and linearly with respect to the communication portion 22H and the cam pin insertion hole 16A-4 as seen in FIGS. The end of the cam pin 24 is slidably engaged with the hole. That is, by displacing the valve operating member 20 in the extending direction of the longitudinal axis X, the end of the cam pin 24 slides in the hole as the cam contour portion 20A, and the displacement direction of the valve operating member 20 (that is, the longitudinal axis X Is displaced in the first direction Y perpendicular to the first direction Y).

  In the illustrated example, the female pipe joint member 10 is provided with a locking device for fixedly connecting the male pipe joint member 14 to be inserted. That is, as shown in FIGS. 1 to 4, the locking device includes a locking hole 16C that passes through the housing 16 in the radial direction with respect to the fluid passage 12 between the right end of the fluid passage 12 and the valve hole 18A. A male locking tube 16E set in the hole 16C, which partially protrudes radially inward from the inner peripheral surface 16A-1 of the first housing portion 16A and is inserted into the fluid passage 12. A locking position (FIGS. 2 to 4) for engaging the locking recess 14C formed on the outer peripheral surface 14B of the coupling member 14 to prevent the male pipe coupling member 14 from coming out of the fluid passage 12, and the locking position Is displaced from the locking recess 14C to allow the male pipe fitting member 14 to be pulled out of the fluid passage 12 and to be inserted into the fluid passage 12 (FIG. 1). Possible locker 1 E and a cylindrical locking element holding member 16F which is slidable in the extending direction of the longitudinal axis X along the inner peripheral surface 16A-1 of the first housing portion 16A, and is radially inward of the locking element 16E. A locking element holding position (FIG. 1) that engages with the locking element 16E and holds the locking element 16E in the unlocking position (FIG. 1), and a male pipe coupling member 14 inserted from the right end of the fluid passage 12. And a locking element release position (FIGS. 2 to 4) which is pushed into the fluid passage 12 and disengages from the locking element 16E and allows the locking element 16E to enter the locking position (FIGS. 2 to 4). The locking element holding member 16F that is displaceable between the first housing 16A and the inner peripheral surface 16A-1 of the first housing 16A is set so as to extend in the extending direction of the longitudinal axis X, and the locking element holding member 16F is released. From the position (Figs. 2 to 4) to the lock holding position (Fig. 1) A coil spring 16H that is energized and has a spring end guide ring 16J that is attached to one end (right end) of the coil spring 16H adjacent to the locker holding member 16F and guides the one end along the inner peripheral surface of the housing 16. The spring end guide ring 16J abuts the locker holding member 16F in the extending direction of the longitudinal axis X so as to urge the locker holding member 16F to the locker holding position (FIG. 1). The part guide ring 16J is moved in the fluid passage 12 by the locker holding member 16F displaced from the locker holding position (FIG. 1) to the locker releasing position (FIGS. 2 to 4) by the male pipe joint member 14. In the extending direction of the longitudinal axis X on the outer peripheral surface 16A-5 of the first housing portion 16A and the coil spring 16H that is pushed in while contracting 16H The locking sleeve 16D is movably provided. When the locking element 16E is in the locking position (FIGS. 2 to 4), the locking element 16E is engaged with the locking element 16E from the outside in the radial direction to lock the locking element 16E ( 2 to 4) between the locking element pressing position (FIGS. 2 to 4) and the locking element pressing release position (FIG. 1) that allows the locking element 16E to be displaced to the locking release position. It has a locking sleeve 16D that can be displaced, and a spring member (coil spring) 16L that urges the locking sleeve 16D toward the locking element pressing position (FIGS. 2 to 4). A holding ring 16K for holding the left end of the coil spring is provided at the position of the left end of the coil spring 16H on the inner peripheral surface 16A-1 of the first housing portion 16A. The holding ring 16K contacts the seal ring 22D. The seal ring 22D is also held. In this locking device, when the male pipe coupling member 14 is inserted into the female pipe coupling member 16, the male pipe coupling member 14 pushes the locking element holding member 16F into the locking recess 16C. The locking sleeve 16D is displaced to the locking element pressing position (FIGS. 2 to 4) by the spring member 16L so as to hold the locking element 16E with the locking recess 14C. The connection with the female pipe joint member 16 is maintained.

  In this type of locking device, the spring end guide ring 16J is generally formed integrally with the locking element holding member 16F and formed as one member. However, in this way, as shown in FIG. 10, the male pipe fitting member 14 inserted into the female pipe fitting member 16 is inclined so that its tip engages with a portion corresponding to the spring end guide ring 16J. When the insertion is performed in an improper state, the operator may notice that during insertion and the male fitting member 14 may be suddenly pulled out. In such a case, the locking element holding member 16F Since the locking element holding member 16F formed integrally with the spring end guide ring 16J is also pushed together with the spring end guide ring 16J, the locking element 16E is disengaged from the locking element holding member 16F inward in the radial direction. In a state in which the male pipe coupling member 14 is removed from the female pipe coupling member 16, the locking element 16E is displaced to the inner radius side as it is, and the locking sleeve 16D causes the outer side in the radial direction to be displaced. Has a Luo pressed state, the intact, it can not be inserted into the male pipe joint member 14 again female pipe coupling member 16. In the present invention, such a problem can be avoided by using the spring end guide ring 16J and the locker holding member 16F as separate members.

  In the illustrated embodiment, when the locking sleeve 16D is in the locking element pressing release position (FIG. 1), the valve operating member 20 is prevented from engaging and displacing with the locking sleeve 16D, and the valve body 18 is fluidized. Displacement to the passage release position is prevented, and the locking sleeve 16D is inserted when the male fitting member 14 is inserted into the fluid passage 12 and the locking sleeve 16D engages with the locking recess 14C of the male fitting member 14. Is set to the locking element pressing position (FIGS. 2 to 4), the valve operating member 20 is displaceable in order to displace the valve body 18 to the fluid passage releasing position.

  In the illustrated embodiment, the valve body 18 has a purge hole 26 for releasing the pressure in the fluid passage 12 to the outside. The purge hole 26 has one end 26 </ b> A opened on the outer peripheral surface of the valve body 18, and the other end 26 </ b> B opened on the valve body side 18 </ b> B surface facing the right end side of the fluid passage 12. When the valve body 18 is in the closed position (FIGS. 1 and 2) for closing the fluid passage 12, the other end 26B is set to a position communicating with the right end side of the fluid passage 12, and the valve body 18 releases the fluid passage 12. When in the open position (FIGS. 3 and 4), the other end 26 </ b> B is configured to be blocked from the fluid passage 12.

  When assembling the female pipe joint member 10 according to the present invention, the valve guide 18 is set in a state in which the valve body 18 is set in the valve hole 22A of the valve guide 22 and the seal rings 22D are set at both ends of the passage opening 22C. It inserts in the valve guide setting hole 16A-2 of the first housing part 16A. In this state, the second housing portion 16B is screwed and connected to the first housing portion 16A, and the valve guide 22 is fixed so that the tip of the second housing portion 16B engages with the concave portion 22G of the valve guide 22, and the left seal ring 22D is sealed. Engage. Next, the cam pin 24 is passed through one inclined hole as the cam contour portion 20A of the valve operating member 20, and the one cam pin insertion hole 16A-4 and the cam pin insertion hole 16A- of the first housing portion 16A adjacent to the hole. 4 through the passage opening 22C of the valve guide 22 adjacent to 4 and through the pin holding hole 18C provided in the valve body 18, the tip of the cam pin 24 is in the inclined hole as the cam contour portion 20A on the opposite side. To reach.

  FIG. 12 shows a female pipe joint member 10 according to another embodiment of the present invention. In this female pipe joint member 10, the male pipe joint member 14 is connected, the lock 16E is fitted into the lock recess 14C, and the lock sleeve 16D is moved to the right from the lock release press position by the coil spring 16L. When the valve operating member 20 is displaced to the right and moved from the closed position to the open position in a state where the lock operating position is as shown, the valve operating member is moved as shown in the figure. 20 is configured to cover the locking sleeve 16D. By doing so, the locking sleeve 16D is released from the locking element pressing position until the valve operating member 20 is displaced from the illustrated position to the left and the valve body 18 is moved from the closed position to the opened position. It can be moved to a position so that the male fitting 14 cannot be pulled away from the female fitting 10.

  As mentioned above, although the female pipe joint member 10 which concerns on embodiment of this invention was described, this invention is not limited to this. For example, the cam contour portion 20A may have any configuration as long as it can slide-engage with the tip of the cam pin 24 and displace the cam pin 24 in the first direction Y described above.

Longitudinal axis X; first direction (vertical direction in the illustrated example) Y; female pipe joint member 10; fluid passage 12; male pipe joint member 14; outer peripheral surface 14B; Portion 16A; inner peripheral surface 16A-1; valve guide setting hole 16A-2; setting sliding surface 16A-3; cam pin insertion hole 16A-4; outer peripheral surface 16A-5; second housing portion 16B; -1; Locking hole 16C; Locking sleeve 16D; Locking element 16E; Locking element holding member 16F; Coil spring 16H; Spring end guide ring 16J; Holding ring 16K; Spring member (coil spring) 16L; Valve body side surface 18B; Pin holding hole 18C; Valve operating member 20; Cam contour portion 20A; Valve guide 22; Guide hole 22A: Valve guide side surface 22B; Upper half portion 22B-1; B-2; passage opening 22C; seal ring 22D; upper half portion 22E; lower half 22F; recess 22G; communicating part 22H; cam pin 24

Claims (10)

A female fitting member that receives and is coupled to a male fitting member,
A cylindrical housing having a fluid passage penetrating from one end to the other, and receiving a male fitting member from the one end;
A valve body that opens and closes the fluid passage by being displaced in a first direction transverse to the longitudinal axis of the fluid passage of the housing;
A valve operating member provided so as to surround the outer peripheral surface of the housing and slidably mounted on the outer peripheral surface;
A guide hole that extends linearly through the housing in the first direction, and the valve body is displaceably accommodated in the first direction so that the fluid passage can be opened and closed by the valve body. A pair of cam pin insertion holes provided through the housing on both sides of the guide hole in a second direction perpendicular to the first direction and crossing the fluid passage, and the guide hole A cam pin extending from the valve body housed within the valve body and extending through the pair of cam pin insertion holes and exposed to the outside of the housing; and a slide provided on the valve operating member and the end of the cam pin. A valve operating cam mechanism comprising a cam contour portion that is dynamically engaged, wherein the valve body is displaced by relative displacement between the cam contour portion and the cam pin by sliding the valve operating member on the housing. To open and close the passage. And the valve operation cam mechanism,
A female pipe joint member. The housing is
A guide setting hole penetrating in the first direction;
A cylindrical valve guide that is inserted into and fixed to the guide setting hole from its one end opening and demarcates the guide hole, and is inserted into the guide setting hole and fixed in the state where the guide hole and the pair of guide holes are fixed. A valve guide having a pair of communicating portions communicating with the cam pin insertion hole;
The female pipe joint member according to claim 1, comprising:   The cam pin is formed as one elongated pin, and penetrates the pin holding hole provided in the valve body through the cam pin insertion hole and the communication portion with respect to the valve body housed in the valve guide inserted in the guide setting hole. The female pipe joint member according to claim 2, wherein the female pipe joint member is attached to the valve body. A cylindrical first housing portion in which the housing has the guide setting hole;
A cylindrical second housing portion coaxially fitted and connected to the first housing portion;
Have
The second housing part is engaged and connected to the first housing part to engage with the valve guide inserted into the guide setting hole to fix the valve guide. Item 4. The female pipe joint member according to Item 2 or 3. The guide setting hole has a pair of sliding surfaces for setting which are spaced apart from each other in the extension direction of the longitudinal axis of the fluid passage and extend so as to be orthogonal to the longitudinal axis of the fluid passage;
The valve guide has a pair of valve guide side surfaces that are slidably engaged with the setting sliding surface, has a passage opening that penetrates from one of the valve guide side surfaces to the other and intersects the guide hole, With the valve guide set in the guide setting hole, the guide holes are spaced from each other in the direction of extension of the longitudinal axis of the fluid passage so that each is perpendicular to the longitudinal axis of the fluid passage. Having a pair of extending guide surfaces and the passage opening being adapted to align with the fluid passage;
The valve body has a flat plate shape having a pair of valve body side surfaces slidingly engaged with the guide surface, and has an opening penetrating from one side of the valve body side to the other, and the opening is aligned with the fluid passage. 5. The female pipe coupling member according to claim 2, wherein the female pipe coupling member is displaceable between an open position to be closed and a closed position in which the opening is not aligned with the fluid passage and closes the fluid passage. 6. .   The valve guide has seal rings respectively attached to the passage openings on both sides of the guide hole, and each of the valve guides is slidably and slidably engaged with the side surface of the valve body. The other seal ring is pressed between the tip of the second housing part connected and fitted to the valve guide, and the valve guide. The female pipe joint member according to claim 4, wherein the female pipe joint member is pressed between the two. A locking hole penetrating the housing in a radial direction with respect to the fluid passage between the one end of the fluid passage and the guide hole;
A locking element set in the locking hole, the male protruding partly radially inward from the inner peripheral surface of the housing and inserted into the fluid passage from the one end of the fluid passage to the coupling position. A locking position that engages with a locking recess formed on the outer peripheral surface of the mold pipe coupling member and prevents the male pipe coupling member from coming out of the fluid passage, and an outer position than the locking position and from the locking recess. A locking element that allows disengagement of the male fitting member from the fluid passage and is displaceable between a locking release position that allows insertion into the fluid passage;
A cylindrical locking element holding member that is slidable in the extending direction of the longitudinal axis along the inner peripheral surface of the housing, and is in a position radially inward of the locking element and is engaged with the locking element. In combination, the locking element holding position for holding the locking element at the unlocking position and the outer peripheral surface of the male fitting member inserted from one end of the fluid passage are pushed in and released from the locking element. A locking element holding member that is displaceable between a locking element release position that enables the locking element to be in the locking position;
A coil spring set so as to extend in the extending direction of the longitudinal axis along the inner peripheral surface of the housing and biasing the locking element holding member from the locking element release position to the locking element holding position; A spring end guide ring that is attached to one end of the coil spring adjacent to the locker holding member and guides the one end along the inner peripheral surface of the housing; and the spring end guide ring holds the locker holding member The locking element holding member is urged to the locking element holding position by abutting the member in the extending direction of the longitudinal axis, and the spring end guide ring is locked by the male pipe joint member. A coil spring adapted to be pushed in while contracting the coil spring in the fluid passage by the lock holding member displaced from the child holding position to the lock releasing position;
A locking sleeve provided on the outer peripheral surface of the housing so as to be slidable in the extending direction of the longitudinal axis, and engages the locking element from the outside in the radial direction when the locking element is in the locking position. Then, the locking element that is displaceable between a locking element pressing position that presses and holds the locking element at the locking position and a locking element pressing release position that allows the locking element to be displaced to the locking release position. Sleeve,
The female pipe joint member according to any one of claims 1 to 6, further comprising: a spring member that biases the locking sleeve toward the locking element pressing position.   In a state where the locking sleeve is in the unlocking position, the valve member is in a closed position for closing the fluid passage, and the valve operating member is engaged with the locking sleeve to open the fluid passage. Displacement is prevented to displace the valve member in position, the male fitting member is inserted into the fluid passage and the locking element engages the locking recess of the male fitting member As a result, when the locking sleeve is brought into the locking element pressing position, the valve operating member is displaceable on the outer peripheral surface of the housing in order to displace the valve member to an open position where the fluid passage is released. The female pipe joint member according to claim 7.   When the valve member is displaced and the fluid passage is opened, the valve manipulation member is shaped so that the valve manipulation member covers the locking sleeve in the locking element pressing position, whereby the fluid passage The valve operating member prevents the displacement of the locking sleeve from the locking element pressing position to the locking element pressing release position when the valve operating member does not displace the valve member. The female pipe joint according to 8. The valve body is a purge hole for releasing the pressure in the fluid passage to the outside, and one end of the valve body opens on the outer peripheral surface of the valve body, and the other end faces the one end side of the fluid passage. When the valve body is in a closed position for closing the fluid passage, the other end is in a position communicating with the one end side of the fluid passage, and the valve body is opened to release the fluid passage. The female pipe joint member according to any one of claims 1 to 9, further comprising a purge hole in which the other end is positioned to be cut off from the fluid passage when in the position.

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