CN101424365B - Pipe joint - Google Patents

Pipe joint Download PDF

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Publication number
CN101424365B
CN101424365B CN2008101759339A CN200810175933A CN101424365B CN 101424365 B CN101424365 B CN 101424365B CN 2008101759339 A CN2008101759339 A CN 2008101759339A CN 200810175933 A CN200810175933 A CN 200810175933A CN 101424365 B CN101424365 B CN 101424365B
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China
Prior art keywords
connector element
valve
seat
pipe joint
plug
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CN2008101759339A
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Chinese (zh)
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CN101424365A (en
Inventor
胜田耕司
兴津政幸
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SMC Corp
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SMC Corp
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Abstract

The present invention concerns a pipe joint, which includes a socket, and a plug arranged in confronting relation to the socket. A holder is disposed on one end of the socket. Further, a packing is retained between the socket and the holder. In addition, the packing is constructed from a body sealing portion disposed on an outer circumferential side thereof, a plug sealing portion disposed on an inner circumferential side thereof that abuts against an outer circumferential surface of the plug, and a valve sealing portion provided with a seating surface upon which a valve, which is disposed displaceably inside of the socket, can be seated.

Description

Pipe joint
Technical field
The present invention relates to a kind of being connected and separating the pipe joint that opens and closes the fluid passage that flow flows through that be used for through socket and plug.
Background technique
In the past, when socket and plug are connected to each other when separating, used pipe joint to be used for the automatic opening-closing fluid passage already.Utilize pipe joint, when socket separates with plug, make the valve body automatic opening-closing, thereby the fluid passage is blocked, and prevent escape of liquid.
For instance, shown in figure 10, in the pipe joint 1 that discloses in No. 2732017, the Japan Patent, outer circumference portion comprises lock pearl 2.Pipe joint 1 is equipped with the anterior tube 4 that wherein slidably keeps operating sleeve 3, and the rear tubular portion 5 that is connected with the rearward end of anterior tube 4.Socket body 6 is made up of with rear tubular portion 5 anterior tube 4.The set inside of socket body 6 has valve operation mechanism 9.This valve operation mechanism 9 comprises the valve body 8 that forms the valve holder 7 with cylindrical shape and slidably be inserted into valve holder 7 inside.Spring 10 is between valve body 8 and valve holder 7 ends, and valve body 8 biases to anterior tube 4 one sides by spring 10.There is one first seal ring 11 to be installed on the outer peripheral surface of valve body 8.First seal ring 11 can be connected to the valve seat 12 that forms in the rear tubular portion 5.
In addition, second seal ring 13 is arranged between rear tubular portion 5 and the valve holder 7, and the 3rd seal ring 14 is arranged between valve holder 7 and the valve body 8, and it can make both members at its hold mode lower seal.
In addition, anterior tube 4 is with respect to rear tubular portion 5 during the notconnect state, and valve body 8 moves forward under the elastic reaction of spring 10, so through the butt block fluid passage 15 of first seal ring 11 with valve seat 12.And when being connected with anterior tube 4, be inserted into the front end of the anterior tube 4 in the socket body 6, the end of butt valve body 8, receive valve body 8 that anterior tube 4 pushes then retraction overcome the elastic acting force of spring 10.In addition, separate with valve seat 12 through first seal ring 11, fluid passage 15 unlatchings also are in connected state.
In addition, shown in Figure 11 A and Figure 11 B, Japan is real to open in the pipe joint that discloses in the clear 58-041430 communique, and cylindrical shape socket 20 wherein is equipped with valve body 22, and this valve body 22 is at the elastic reaction bottom offset of holddown spring 21.Valve body 22 a wherein end face is set to be placed on the valve seat 23 that the rubber of socket 20 internal face settings processes.In addition, plug 24 is to be inserted in the circular groove 26 of plug 24 and to insert from an end of socket 20 through the lock pearl 25 that is provided with in the socket 20, and plug 24 just can one be connected with socket 20.
In addition, in the routine techniques that No. 2732017, Japan Patent, first to the 3rd seal ring 11,13,14 is independent respectively to be provided with, thereby the increase of the assembling element number of pipe joint 1, causes installation step number and cost all to increase to some extent.
On the other hand, Japan is real to open in the routine techniques of clear 58-041430 communique, when plug 24 when socket 20 1 ends insert, before the end and rubber valve seat 23 butts of plug 24, valve body 22 receives pushing of plug 24 and separates with valve seat 23.Thus, before being sealed by valve seat 23, pressure fluid just flows to plug 24 sides from socket 20, and the result is that pressure fluid is often from leaking between socket 20 and the plug 24.
In addition, for the plug 24 of pipe joint, the structure that provides plug 24 to insert from the end of socket 20, wherein through and valve seat 23 butts keep the close state of liquid between socket 20 and the plug 24.But on the opposite direction of its direction of insertion, there is opposition to act on plug 24, thereby when plug 24 inserts, just meets obstructions, make attended operation difficult from valve seat 23.
In addition, when valve body 22 is rehoused, there is being seat cooperation firmly to act on the valve seat 23 on the equidirectional of valve body 22 direction of displacement, thereby reducing crushing resistance there being high pressure to act under the situation of valve body 22 from valve body 22.
In addition, the valve body 22 that is used for the connected state of switch pressure fluid is configured to the fluid passage 25 in crosscut socket 20 and the plug 24, thereby has resistance to produce during pressure fluid flow via flow passage, and pressure loss increases to some extent thereupon.
Summary of the invention
Its purpose of the present invention can realize when being to provide a kind of its assembling to be improved that cost reduces, and prevent that pressure fluid from leaking, and pressure fluid can be reliably through its pipe joint that flows through.
The present invention is characterized in that:
First connector element;
The maintenance seat that is connected in one with first connector element;
Can connect and can be installed on dividually the second connector element member of the inside that keeps seat;
Be arranged at the inner valve operation mechanism of first connector element, this valve operation mechanism can switch the flowing state of the pressure fluid that flows through between first connector element and second connector element; And
Sealing component, have remain on first connector element and keep between the seat first sealed department, can settle the 3rd sealed department on it with second sealed department of the second connector element butt and the valve body of valve operation mechanism.
Above-mentioned and other purpose of the present invention, feature and advantage are through becoming more clear below in conjunction with the illustration meeting that accompanying drawing was carried out that provides the preferred embodiment of the present invention with the example mode.
Description of drawings
Fig. 1 is the overall longitudinal sectional view of the pipe joint of first embodiment of the invention;
Fig. 2 illustrates the valve of the pipe joint shown in Fig. 1 and the amplification view of encapsulation near zone;
Fig. 3 is the simple perspective view of the valve of the pipe joint in the constitutional diagram 1;
Fig. 4 is the front view of the valve shown in Fig. 3;
Fig. 5 is the longitudinal sectional view that the state that the pipe joint of plug from Fig. 1 separate is shown;
Fig. 6 illustrates the valve of the pipe joint shown in Fig. 5 and the amplification view of encapsulation near zone;
Fig. 7 is a valve and the amplification view of encapsulation near zone, with respect to the pipe joint among Fig. 5 the situation during the plug is installed shown in it;
Fig. 8 is the overall longitudinal sectional view of the pipe joint of second embodiment of the invention;
Fig. 9 illustrates the valve of the pipe joint shown in Fig. 8 and the amplification view of encapsulation near zone;
Figure 10 is the overall sectional view of the pipe joint of routine techniques;
Figure 11 A is the sectional view of its plug of pipe joint of another routine techniques;
Figure 11 B is the sectional view of the connected socket of plug shown in Figure 11 A.
Embodiment
Among Fig. 1, the pipe joint of first embodiment of the invention is shown with reference to label 50.With reference to Fig. 1 the situation that plug 54 is connected with socket 52 is described.
Extremely shown in Figure 7 like Fig. 1; Pipe joint 50 is equipped with the socket of being processed by metallic material (first connector element) 52 that in axial direction is disposed at a side (arrow A direction) wherein, and coaxial with it be disposed at wherein opposite side (arrow B direction) so as with socket 52 plug 54 (second connector element) in opposite directions.In addition, pipe joint 50 also comprises: the socket 52 maintenance seat 56 that is provided with of an end wherein that wherein inserts the part of plug 54; Around being installed on respect to the outer peripheral surface that keeps seat 56 and sleeve 60 that can displacement in axial direction under the elastic reaction of Returnning spring 58; And the inside that is arranged at socket 52 valve operation mechanism 62 that the connected state between socket 52 and the plug 54 is switched.
Socket 52 comprises: first connecting tube 64 that is connected with not shown pipe etc. wherein a distolateral formation; First clamp structure 66 that is hexagonal cylindrical with the 64 adjacent settings of first connecting tube; And be formed at another distolateral retaining member 68 that keeps seat 56 maintenances that can make therein of socket 52.
In addition, in the socket 52, there is a port 70 to be formed at the inside of first connecting tube 64, is arranged at the inside of first clamp structure 66 with respect to port 70 in the space 72 that the diameter radial direction enlarges outward.Valve operation mechanism 62 is arranged in the space 72.
In addition, there is its diameter to be formed on the inner peripheral surface of the retaining member 68 that constitutes socket 52 with respect to the stepped part 74 that space 72 further enlarges.Encapsulation (sealing component) 76 a wherein part is held on stepped part 74 and keeps between the seat 56.
In addition, be formed on the retaining member 68 at outstanding outward in the radial direction annular excrescence 78.Keeping seat 56 to be inserted in the groove 80 (explanation after a while) that keeps seat 56 through excrescence 78 is connected with socket 52.
Encapsulation is 76 by forming cylindrical shape such as this elastic-like materials such as rubber, for instance comprising the body seal portion (first sealed department) 82 that stepped part 74 keeps; Its diameter is with respect to the radially past interior plug sealed department that reduces to some extent (second sealed department) 84 of body seal portion 82; And the valve seal portion (the 3rd sealed department) 86 that makes body seal portion 82 and 84 interconnection of plug sealed department.The encapsulation 76 that body seal portion 82 is arranged at socket 52 1 sides is wherein one distolateral, and plug sealed department 84 then is arranged at the encapsulation 76 that keeps seat 56 1 sides, and wherein another is distolateral.
Valve seal portion 86 its sections bend to L shaped shape basically, and in axial direction extend by changeless diameter, body seal portion 82 are joined together to form with plug sealed department 84 be one.Its outer peripheral surface is installed to the assembly department 88 that is provided with on the inner peripheral surface that keeps seat 56.
In addition, valve seal portion 86 comprises and can settle the seat of the valve 110 of forming valve operation mechanism 62 to close face 90 on its of body seal portion 82 near zone settings.Seat closes face 90 towards valve 110 and with respect to the axially angle tilt to be scheduled to that encapsulates 76, and forms the conical by its shape that its diameter reduces on the direction of body seal portion 82 to plug sealed department 84 gradually.
Plug 54 forms cylindrical shape by metallic material, makes plug 54 through will wherein a part ofly being inserted into the other end that keeps being connected in seat 56 and the socket 52 socket 52.Plug 54 comprises following composition: second connecting tube 92 that is connected with not shown pipe etc. wherein a distolateral formation; Second clamp structure 94 of the hexagonal shape that contiguous second connecting tube 92 is provided with; The insertion body 96 that its diameter of another distolateral formation reduces with respect to second clamp structure 94 to some extent; And be arranged at second clamp structure 94 and insert between the body 96 on the outer peripheral surface of plug 54 pearl groove 98 by annular indent.
In addition, have a through hole 100 in the last perforation of axial direction (arrow A and B direction) to be formed in the plug 54, thereby port 70 is in connected state with space 72 when plug 54 is connected with socket 52.
Keep seat 56 to form cylindrical shape by metallic material.Keep seat 56 wherein to be configured to stepped part 74 in an end of socket 52 1 sides towards socket 52.The body seal portion 82 of encapsulation 76 is held between the end and socket 52 that keeps seat 56 in the stepped part 74 of socket 52.
In addition, groove 80 wherein is inserted with the excrescence 78 that forms along the inner peripheral surface of socket 52 the other ends along keeping seat 56 outer peripheral surfaces to be arranged at keeping seat 56 wherein one distolateral.Therefore, keep seat 56 to be positioned the axial direction of socket 52, become its displacement on axial direction and obtain adjusting this connection state.
In addition, assembly department 88 is formed at and keeps a wherein distolateral inner peripheral surface of seat 56, and is radially enlarging to some extent on the direction outward.The valve seal portion 86 and the plug sealed department 84 of encapsulation 76 attach on the assembly department 88.Keep the other end of seat 56 then to have the flange 102 that enlarges to some extent on the direction outward radially.Be provided with near this flange 102 along the circumferential direction with the separated a plurality of ball holes 104 of intended distance.There are a plurality of balls 106 to put into each ball hole 104 respectively, thus can be at the radial direction top offset that keeps seat 56.Keep the diameter of each ball hole 104 of seat 56 inner peripheral surfaces one side to form slightly little.Thus, ball 106 can not drop out entering maintenance seat 56 inside in the middle of ball hole 104, so ball 106 remaines in the ball hole 104.
In addition, keeping the inner peripheral surface of seat 56 to form its diameter distolaterally reduces to one of socket 52 sides from another of plug 54 sides is distolateral gradually.Specifically, keep the internal diameter of seat 56 in axial direction to be set to basically immobilize, and its diameter reduce gradually from central division to one of which is distolateral from the other end to the cardinal principle central part.That is to say, keep the inner peripheral surface of seat 56 to form the insertion body 96 corresponding shapes that have and be inserted into its inner plug 54.
Sleeve 60 forms cylindrical shape by metallic material, and is set to cover the outer peripheral surface that keeps seat 56.There is the outstanding protuberance 108 of a radially past interior direction to be formed at the inner peripheral surface of sleeve 60.Have one at the Returnning spring 58 that acts on sleeve 60 on the direction away from socket 52 between the protuberance 108 and socket 52 the other ends.Protuberance 108 forms by the annular shape of each ball 106 of in each ball hole 104 that keeps seat 56 and ball hole 104, installing, but and is set to the outer peripheral surface of each ball 106 of butt.
In addition, Returnning spring 58 is formed by the spring ring that for example has fixed diameter and a plurality of windings.Returnning spring 58 is arranged at the inner peripheral surface of sleeve 60 and keeps the space between the outer peripheral surface of seat 56.
In addition; When sleeve 60 by the elastic reaction of Returnning spring 58 during displacement; Protuberance 108 each ball 106 in the face of installing in each ball hole 104 of keeping seat 56 and each ball hole 104, and adjust the displacement of sleeve 60 through the protuberance 108 and the butt of the flange 102 that keeps seat 56.That is to say that the flange 102 of maintenance seat 56 plays the effect of this stop mechanism of axial displacement of adjustable a whole set of tube 60.
Valve operation mechanism 62 comprises: be arranged in the space 72 of socket 52 and can be along the valve 110 of the axial direction displacement of socket 52; And the valve spring 112 between valve 110 and space 72 internal faces, this valve spring 112 acts on valve 110 towards plug 54 sides (arrow B direction).
Valve 110 is formed by for example metallic material, like Fig. 3 and shown in Figure 4 comprising: main part 114; Press the outstanding a plurality of supporting leg 116a to 116c of predetermined height with respect to the end face of this main part 114; With respect to the main part 114 outstanding substructure member 118 of direction outward radially.Have an end face towards plug 54 and encapsulation 76 to form the plane that is with the perpendicular extension of axle on the main part 114, its center is provided with cylindrical pedestal part 119.
Set for example 3 supporting leg 116a to 116c uniformly-spaced separate around base part each other, and radially extend outward thus with radiation shapes.In addition, each supporting leg 116a to 116c becomes big gradually with the height with respect to base part 119 1 sides.Each supporting leg 116a to 116c its highly form by level altitude be formed with one with the position of the end butt of plug 54.In other words, each supporting leg 116a to 116c respectively from main part 114 wherein an end face peripheral edge extend to the center.
In addition; Each supporting leg 116a to 116c configuration makes its position in main part 114 outer circumferential sides have the diameter identical substantially with plug 54 the other ends, thereby the other end is set to be used for the front end butt with each supporting leg 116a to 116c when this plug 54 is installed to socket 52 and keeps in the seat 56.In other words, each supporting leg 116a to 116c forms with respect to main part 114 and is column.
Substructure member 118 forms flange; Outer peripheral surface with respect to main part 114 is outstanding outward with predetermined diameter, and its end face in plug 54 these sides (arrow B direction) then is formed with one in the conical surface that on the direction of each supporting leg 116a to 116c, diminishes gradually 120 (see figure 2)s.In addition, at the notconnect state of plug 54 with respect to socket 52, the conical surface 120 is set at the valve closed condition, and wherein the conical surface 120 closes face 90 butt (see figure 5)s with the seat of encapsulation 76.In addition, the other end of substructure member 118 forms and is the plane, and valve spring 112 a wherein end is fixing therewith.
On the other hand, main part 114 forms the section with rectangular shape towards the other end of the port 70 of socket 52, and its peripheral edge is inserted through valve spring 112.
For instance, valve spring 112 is formed by spring ring.Valve spring 112 a wherein end is installed on the valve base member 118 of valve 110, and its other end then is installed on space 72 and port 70 connection part between the two of forming socket 52 on the internal face.Valve spring 112 forms has taper profile, and its diameter enlarges from its other end at end to the valve spring 112 of valve 110 1 sides gradually.
The pipe joint 50 of first embodiment of the invention constitutes basically as stated.Working principle of the present invention and effect are described below.This is separated this notconnect state with plug shown in Figure 5 54 with socket 52 describes as initial conditions.
Like Fig. 5 and shown in Figure 6, the initial conditions of pipe joint 50, valve 110 is pressed under the elastic reaction of valve spring 112 and keeps seat 56 sides (arrow B direction), so sealing component 118 closes face 90 butts through the conical surface 120 and the seat that encapsulates 76.Then, sleeve 60 receives the active force that leaves socket 52 these directions (direction of arrow B) under the elastic reaction of Returnning spring 58, thus protuberance of sleeve 60 108 and the outer peripheral surface butt that keeps the ball 106 of installation in the seat 56.Thus, a plurality of balls 106 are pressed into the inner circumferential side that keeps seat 56 respectively, and the each several part of each ball 106 is exposed to the inside that keeps seat 56.
Under a kind of like this initial conditions, plug 54 is from keeping seat 56 another distolateral installations for pipe joint 50.In this case, the elastic reaction that at first overcomes Returnning spring 58 at sleeve 60 slides into socket 52 1 sides (along the arrow A direction) afterwards, and plug 54 inserts body 96 sides from it and is inserted into and keeps the seat 56.
In addition, through plug 54 being pressed into (along the arrow A direction) in the socket 52, the plug sealed department 84 of encapsulation 76 slidably contacts the outer peripheral surface that inserts body 96, thereby keeps plug 54 and keep the close situation of liquid between the seat 56.After this, insert the end of body 96 and each supporting leg 116a to 116c butt of valve 110, and, valve 110 is pressed into port 70 sides (along the arrow A direction) of socket 52 through each supporting leg 116a to 116c.
Therefore, valve 110 overcomes the elastic reaction displacement of valve spring 112, and the substructure member 118 of forming valve 110 closes face with the seat that encapsulates 76 and opened in 90 minutes, so the through hole 100 of the space 72 of socket 52 and plug 54 is in connected state.
Specifically; Be incorporated into the working fluid in space 72 through port 70; Gap through between a plurality of supporting leg 116a to 116c that constitute valve 110 flows to plug 54 1 sides, and via the through hole 100 of plug 54, and pressure fluid flow to the not shown pipe that is connected with plug 54 etc.At this moment, the seat of valve 110 and encapsulation 76 closes before face opened in 90 minutes, and the outer peripheral surface of plug 54 is surrounded by plug sealed department 84 in advance, thereby the pressure fluid that prevents to make it to flow through because of open valve 110 is from plug 54 with keep leaking between the seat 56 outside.
Then, through the hold mode of releasing sleeve 60, sleeve 60 is moved to plug 54 (along the arrow B direction) because of the elastic reaction of Returnning spring 58, so a plurality of ball 106 is pressed into the inner circumferential side of maintenance seat 56 by the protuberance 108 of sleeve 60.Then, ball 106 is inserted in the pearl groove 98 that is provided with on the outer peripheral surface of plug 54.Adjust plug 54 thus in axial direction with respect to displacement, the state (see figure 1) that causes plug 54 to connect with respect to socket 52 comprising the socket 52 that keeps seat 56.
At this moment; The plug sealed department 84 and the outer peripheral surface butt that inserts body 96 of forming encapsulation 76; Thereby pressure fluid can not take place between inserting body 96 and encapsulating 76, leak, meanwhile prevent that by valve seal portion 86 pressure fluid is at the internal face of socket 52 with keep leaking between seat 56 ends.
On the other hand; Under 54 the situation of will pulling the plug out of the socket in the middle of the pipe joint 50 that wherein is connected with above-mentioned socket 52 and plug 54; The elastic reaction slide displacement that overcomes Returnning spring 58 at sleeve 60 again to socket 52 1 sides (arrow A direction) afterwards, plug 54 (on the arrow B direction) thereby spurred with socket 52 separates.Therefore, be inserted into ball 106 in the pearl groove 98 of plug 54 and receive, be able to remove so plug 54 its axial direction displacements receive the state of ball 106 adjustment along ball hole 104 pushing of direction outward radially.In addition, the pressure that acts on valve 110 simultaneously descends, and valve 110 receives the elastic reaction of valve spring 112 and is depressed into plug 54 1 sides (arrow B direction).
In addition, through on the direction of leaving socket 52 (arrow B direction), being moved further plug 54, the substructure member 118 of valve 110 closes face 90 butts with the seat of encapsulation 76, thereby interrupts the space 72 of socket 52 and keep the connection between seat 56 inside.Thereby under the situation that plug 54 was also opened with socket in 52 minutes, the pressure fluid that offers the space 72 of socket 52 is kept and can not leaked into the outside.
At this moment; Substructure member 118 comprise with respect to valve 110 axially with the conical surface 120 of predetermined angle tilt, thereby the seating force of substructure member as shown in Figure 6 118 when closing face 90 butts with seat can suitably be decomposed into the first component F1 that act on seat and close face 90 Vertical direction, be acted on the valve 110 axially second component F2 of substantially parallel direction and the 3rd component F3 that acts on the direction of valve 110 axial perpendicular.
The aforesaid way of first embodiment of the invention, the encapsulation 76 of the drum of being processed by elastic material is equipped with: be arranged at its outer circumferential sides and remain in socket 52 and keep the body seal portion 82 between the seat 56; Be arranged at its inner circumferential side and can with the plug sealed department 84 of the outer peripheral surface butt of plug 54; And be arranged between body seal portion 82 and the plug sealed department 84 and have can settle on it valve 110 the seat close face 90 valve seal portion 86.Specifically; Single encapsulation 76 capable of using prevents that pressure fluid is from keeping leakage between seat 56 and socket 52 and the plug 54; In addition; Prevent that pressure fluid from socket 52 with when keeping leaking between the seat 56, can be placed in valve seal portion at valve 110 and prevent that pressure fluid was from leaking between valve 110 and the valve seal portion 86 86 last times.
Therefore, be provided with separately the conventional pipe joint of sealing component with each zone and compare, can reduce the component number that constitutes pipe joint 50, reduce its installation step number and cost simultaneously.
In addition; When plug 54 is thrown off with respect to socket 52; Because only keep between plug 54 and the socket 52 and can set up connected state after the close state of liquid, thereby can reliably prevent the leakage of pressure fluid, thereby make pressure fluid can more effectively flow through pipe joint 50.
In addition, when socket 52 was connected with plug 54, plug sealed department 84 butts of encapsulation 76 inner circumferential side setting also surrounded the outer peripheral surface of plug 54, can and wherein keep between the maintenance seat 56 of this plug 54 the reliable liquid that keeps close at plug 54 thus.Specifically, the amount of deformation (amount of compression) in the time of can reducing plug sealed department 84 sealing plugs 54, thereby the resistance that plug 54 is run into when being inserted in the socket 52 also becomes less.Thereby plug 54 does not need very big power when installing, and can connect/throw off the operation that connects to plug 54 more conveniently.
In addition, through the substructure member 118 of settling valve 110 on it is provided with the conical by its shape that axially tilts at a predetermined angle with respect to encapsulation 76, can suitably decompose valve 110 and act on the sealing force on the sealing surface 90, thereby can improve intensity and anti-pressure ability.
In addition; Valve 110 its structures are on the end face of plug 54, to have a plurality of supporting leg 116a to 116c that uniformly-spaced separate at main part 114; So when the substructure member 118 of valve 110 closes face 90 separately and authorized pressure fluid when flowing through from seat; This valve 110 can not intercept or hinder the fluid passage that pressure fluid is used, and can make the pressure fluid proper flow through time between each supporting leg 116a to 116c.Thereby, can suppress the pressure loss of pressure fluid in pipe joint 50, can make pressure fluid effectively mobile, and reach energy-saving effect.
Following Fig. 8 and Fig. 9 illustrate the pipe joint 150 of second embodiment of the invention.It marks with reference to label with identical with above-mentioned first embodiment's pipe joint 50 identical constituent elements, and specifying of these technical characteristicss is omitted.
Second embodiment's pipe joint 150 itself and first embodiment's pipe joint 50 differences are; What substitute single encapsulation 76 is one can keep socket 52, keep the close structure of liquid between seat 56 and the plug 54, is made up of main body encapsulation 152, ring bodies 154 and 156 on O type circle.
Pipe joint 150 comprises the main body encapsulation 152 that keeps on the stepped part 74 of socket 52.This main body encapsulation 152 is for instance by processing such as this elastic-like materials such as rubber, and forms the section ring-type of shape triangular in shape basically.
Main body encapsulation 152 comprises: with first abutting part 158 of socket 52 butts; With second abutting part 160 that keeps seat 56 butts; Settle valve 110 on it and from first abutting part 158 and second abutting part 160 pedestal part 162 that direction enlarges in the yearning of footpath; And on away from the direction of pedestal part 162 outstanding excrescence 164.This excrescence 164 is outstanding towards plug 54 sides (arrow B direction), and can slide along the inner peripheral surface that keeps seat 56.
First and second abutting parts 158,160 are arranged at the outer circumferential area of main body encapsulation 152, and are held between the stepped part 74 and maintenance seat 56 of socket 52.
Pedestal part 162 its sections are pressed the circular shape indent, and form the substructure member 118 that makes valve 110 and can be placed in above it.
Ring bodies 154 is processed by for example metallic material, and it is L-shaped to form section.Ring bodies 154 engages with the excrescence 164 of main body encapsulation 152.Because this structure, the inner peripheral surface of the inner peripheral surface of ring bodies 154 and main body encapsulation 152 forms along identical faces basically.
O type circle 156 is by forming such as this elastic-like materials such as rubber, and remains in the inner peripheral surface that keeps seat 56, is sandwiched in simultaneously between itself and the ring bodies 154, and is supported along the axial direction (direction of arrow A and B) of pipe joint 150.
Specifically, through the metal ring body 154 of the Sealing effect of playing pipe joint 150 is set, can suppress main body encapsulation 152 and 156 distortion of O type circle between main body encapsulation 152 and O type circle 156.In other words, ring bodies 154 plays and can suppress main body encapsulation 152 and this effect of O type circle 156 elastically-deformable anti-distortion mechanisms.
Therefore, can encapsulate 152 by main body and reliable keep sockets 52 and keep between the seat 56 liquid close, can obtain desired sealing function thus, can reliably keep by O type circle 156 in addition and keep between seat 56 and the plug 54 liquid close, thereby can obtain desired sealing function.
Pipe joint of the present invention is not limited to the foregoing description.Certainly can under the situation that does not deviate from the present invention's essence and main points, adopt all other structures.

Claims (7)

1. pipe joint comprises:
First connector element (52);
The maintenance seat (56) that is connected in one with said first connector element (52);
Can connect and can be installed on dividually second connector element (54) of the inside of said maintenance seat (56), this second connector element (54) has can be inserted into the said insertion body (96) that keeps in the seat (56);
Be arranged at the inner valve operation mechanism (62) of said first connector element (52); This valve operation mechanism (62) can switch the flowing state of the pressure fluid that flows through between said first connector element (52) and said second connector element (54); This valve operation mechanism (62) has valve body (110), and said valve body (110) has towards said second connector element (54) and to the side-prominent many supporting legs (116a to 116c) of said second connector element (54); And
Sealing component (76), sealing member (76) have remain on said first connector element (52) and said keep between the seat (56) first sealed department (82), can settle the 3rd sealed department (86) on it with second sealed department (84) of said second connector element (54) butt and the valve body (110) of said valve operation mechanism (62);
This pipe joint is characterised in that:
Be inserted in the process of first connector element (52) at second connector element (54); Second sealed department (84) of said sealing component (76) slidably contacts the outer peripheral surface that inserts body (96), thereby keeps second connector element (54) and keep the fluid-tight state between the seat (56); After this, insert the end of body (96) and each supporting leg (116a to 116c) butt of valve body (110), and valve body (110) is pushed open, thereby make first connector element (52) and second connector element (54) be in connected state through each supporting leg (116a to 116c).
2. pipe joint as claimed in claim 1 is characterized in that, said valve body (110) further comprises:
Mode with displacement in axial direction is arranged at the inner substructure member (118) of said first connector element (52), and this substructure member (118) can be placed on said the 3rd sealed department (86),
Wherein, on said substructure member (118), the surface of said the 3rd sealed department of its butt (86) one sides form be with respect to said valve body (110) axially with the shape of the taper of predetermined angle tilt.
3. pipe joint as claimed in claim 2; It is characterized in that; On said substructure member (118); The bearing surface (120) of said the 3rd sealed department of butt (86) form be with respect to said valve body (110) axially with the shape of the taper of predetermined angle tilt, said the 3rd sealed department (86) comprises with said substructure member (118) is corresponding and axially closes face (90) with the conical seat of predetermined angle tilt with respect to said sealing component (76).
4. pipe joint as claimed in claim 3 is characterized in that, said second sealed department (84) forms ringwise shape, and can with the outer peripheral surface butt of said second connector element (54).
5. pipe joint as claimed in claim 2; It is characterized in that; Each said supporting leg (116a to 116c) radially extends from the center of said valve body (110) outward, and in a circumferential direction each other by angle same spaced-apart the time acentric by a plurality of settings.
6. pipe joint as claimed in claim 2 is characterized in that, spring (112) is used for advancing said valve body (110) to (54) one thrusters of said second connector element between said valve body (110) and said first connector element (52).
7. pipe joint as claimed in claim 6; It is characterized in that; Said substructure member (118) is set to from the outer peripheral surface of the main body (114) that constitutes said valve body (110) radially outstanding outward, wherein keeps an end of said spring (112) with the opposite another side of a said side surface of said substructure member (118).
CN2008101759339A 2007-10-31 2008-10-30 Pipe joint Active CN101424365B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2007-283538 2007-10-31
JP2007283538 2007-10-31
JP2007283538 2007-10-31
JP2008109772 2008-04-21
JP2008-109772 2008-04-21
JP2008109772A JP4596281B2 (en) 2007-10-31 2008-04-21 Pipe fitting

Publications (2)

Publication Number Publication Date
CN101424365A CN101424365A (en) 2009-05-06
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KR200465369Y1 (en) 2012-11-09 2013-02-15 서한호 air coupler
US10190711B2 (en) * 2015-12-07 2019-01-29 Engineered Controls International, Llc Low emission fluid coupler
CN106931261B (en) * 2017-04-28 2023-03-14 中国电子科技集团公司第四十研究所 Floating blind-mate fluid connector
US10781958B2 (en) * 2017-10-31 2020-09-22 Oetiker Ny, Inc. Low peak insertion tube end form
TWI747295B (en) * 2019-09-12 2021-11-21 日商日東工器股份有限公司 Pipe joint components
CN114508640A (en) * 2022-02-25 2022-05-17 扬州海通电子科技有限公司 Push-pull quick-locking fluid connector

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