CN101182898A - Pipe adaptor, coupling releasing appliance and pipe adaptor device - Google Patents
Pipe adaptor, coupling releasing appliance and pipe adaptor device Download PDFInfo
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- CN101182898A CN101182898A CNA2007101291184A CN200710129118A CN101182898A CN 101182898 A CN101182898 A CN 101182898A CN A2007101291184 A CNA2007101291184 A CN A2007101291184A CN 200710129118 A CN200710129118 A CN 200710129118A CN 101182898 A CN101182898 A CN 101182898A
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- cover member
- shaped cover
- recessed portion
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Abstract
The invention provides a pipe connector which can prevent the engagement state from loosing due to accidents. An external taper thread part (2a) which is engaged and fixed above one of two pipes connected with each other is formed at the upper end of the connector main body (2). A nut (3) which is engaged with the other pipe is arranged at the lower end of the connector main body (2). The connector main body (2) is provided with a shield component (4) which can rotate and move on the axial direction of the connector main body (2). The shield component (4) shields the nut (3) when positioned at the shield position shown in a solid line, and expose the nut (3) outside when positioned at an exposure position shown in an assumed line.
Description
Technical field
The engaging releasing appliance that the present invention relates to be used for to connect the pipe joint of body such as gas tube, uses at this pipe joint and possess pipe joint and the pipe connector of engaging releasing appliance.
Background technique
Usually, when being connected with export mouth with the introducing port of gas meter respectively with the second side gas tube, uses by the first side gas tube pipe joint.Pipe joint has: an end is formed with the joint body of outer cone thread portion and is arranged on the other end of this joint body and the nut that can rotate under anticreep does well.The outer cone thread portion and the first side gas tube of joint body screw fixing.The introducing port of nut and gas meter screws fixing.Like this, the introducing port of first side gas tube and gas meter is connected by pipe joint.The export mouth of second side gas tube and gas meter is connected similarly.
Outer circumferential face at nut is provided with tool holding portions such as spanner clamping part.Tool holding portion is used to be fastened on the instruments such as spanner that use when screwing nut, has a plurality of planes.In various operations such as gas pipe distribution operation, the instrument class is collided on this plane sometimes by mistake.The running torque that produces during like this, owing to instrument class collision plane then might make the nut rotation fluff slow.
So, propose to have the relax scheme of device of pipe joint that prevents in the following patent documentation 1.This device that prevents to relax has the band that two engagement portions are set.Make each engagement portion respectively with state that each tool holding portion of two pipe joints engages under this band be erected at crossing condition between two pipe joints.Therefore the nut when a square tube joint will be when the direction of relaxing be rotated, and the nut of the opposing party's pipe joint screws the rotation of direction to quilt, and a square nut is stoped by the opposing party's nut to the rotation of the direction of relaxing.Prevent relaxing of each pipe joint nut thus.
Patent documentation 1:(Japan) spy opens flat 9-53626 communique
The above-mentioned device that prevents to relax has following problem, that is, use in the time of must being two pipe joints in abutting connection with configuration, can not prevent relaxing of nut under the situation that a pipe joint is only arranged.When pipe joint only is one, is wound onto band on the nut and rotates with nut and can not prevent relaxing of nut.
Summary of the invention
In order to address the above problem, the pipe joint of the invention of first aspect possesses the joint body that portion at least at one end is formed with the tubular of screw section, the peripheral part of this joint body is provided with the tool holding portion with plane, the curtain-shaped cover member that becomes tubular can be rotated for described relatively tool holding portion by chimeric at the peripheral part of described joint body, and in the hidden position of covering described tool holding portion and described tool holding portion can be moved along described joint body axial direction to outside exposing between the position of exposing, the side face of either party's parts of the outer circumferential face of described joint body and the inner peripheral surface of described curtain-shaped cover member is provided with the back-up ring that roughly becomes C word shape and energy hole enlargement undergauge, it can not move on the axial direction of a described quadrate part spare but energy hole enlargement undergauge, and on the opposing party's parts, be formed with ring-type engagement groove and a plurality of releasing groove, this engagement groove engages with described back-up ring and thus described curtain-shaped cover member card is ended in described hidden position, this is removed groove and extends to the axial direction of described the opposing party's parts, and an end is opened and the other end intersects with described engagement groove to the axial direction of described the opposing party's parts.
At this moment, preferably be provided with nut revolvably, be provided with described tool holding portion at the outer circumferential face of described nut in the other end of described joint body periphery.
Preferably on a described quadrate part spare, be formed with annular recessed portion, it is accommodated the back-up ring of the nature that does not have the hole enlargement undergauge and makes it and can not move on the axial direction of a described quadrate part spare, and can accommodate the back-up ring integral body of undergauge, the internal diameter of this annular recessed portion, the internal diameter of described back-up ring, and from described expose the position towards on the direction of described hidden position and the relation between the external diameter of a described quadrate part spare of the front side adjacency of described annular recessed portion be set to: on the sidepiece that radially abuts to described annular recessed portion near the radially sidepiece up to the back-up ring of described nature of described annular recessed portion the time, the other side of described back-up ring is positioned at the other side of described annular recessed portion described back-up ring.
Be preferably as follows each diameter that decides described the place ahead part and described rear part, promptly, make the place ahead part of a described quadrate part spare that on the described direction of exposing the position, with respect to described annular recessed portion, is positioned at front side from the described hidden position of described curtain-shaped cover member as the degree of depth of the described annular recessed portion of benchmark, than the rear part of a described quadrate part spare that on the described direction of exposing the position, with respect to described annular recessed portion, is positioned at rear side from the described hidden position of described curtain-shaped cover member depth as shallow as the described annular recessed portion of benchmark.
Preferably on described the opposing party's parts, temporary fixed portion is set, describedly engage with described back-up ring in the mode that can engage and break away from when exposing the position by being positioned at described curtain-shaped cover member, with the power of prescribed level stop described curtain-shaped cover member from the described position of exposing to described hidden position side shifting.
The invention of second aspect is a kind of engaging releasing appliance, it removes the fastening state of described back-up ring with respect to engagement groove by the back-up ring of a pipe joint being carried out undergauge or hole enlargement, this pipe joint possesses the joint body that portion at least at one end is formed with the tubular of screw section, the peripheral part of this joint body is provided with the tool holding portion with plane, the curtain-shaped cover member that becomes tubular can be rotated for described relatively tool holding portion by chimeric at the peripheral part of described joint body, and in the hidden position of covering described tool holding portion and described tool holding portion can be moved along described joint body axial direction to outside exposing between the position of exposing, the side face of either party's parts of the outer circumferential face of described joint body and the inner peripheral surface of described curtain-shaped cover member is provided with the back-up ring that roughly becomes C word shape and energy hole enlargement undergauge, it can not move on the axial direction of a described quadrate part spare but energy hole enlargement undergauge, and on the opposing party's parts, be formed with ring-type engagement groove and a plurality of releasing groove, this engagement groove engages with described back-up ring and thus described curtain-shaped cover member card is ended in described hidden position, this is removed groove and extends to the axial direction of described the opposing party's parts, one end is opened and the other end intersects with described engagement groove to the axial direction of described the opposing party's parts, this engaging releasing appliance possesses first, the second tools structure parts, can be mutually between its end separately near and leave and link revolvably between separately the other end, described first, the second tools structure parts can rotate between insertion position and chimeric position, this insertion position is for making the described joint body can be described first, between the second tools structure parts end separately to its radially by and withdraw from, this chimeric position is described first, form between the opposing side of the second tools structure parts and described joint body is moved and can not be on axial direction to the position of radially carrying out chimeric limiting holes movably, described first, the second tools structure parts are provided with the releasing axial region, it is being positioned at described first of described chimeric position, the second tools structure parts to described curtain-shaped cover member when mobile, insert to described a plurality of releasing grooves from removing each open end of groove respectively, described back-up ring is removed for the fastening state of described engagement groove by making described back-up ring undergauge or hole enlargement.
The invention of the third aspect is a kind of pipe connector, it possesses pipe joint and engaging releasing appliance, described pipe joint possesses the joint body that portion at least at one end is formed with the tubular of screw section, the peripheral part of this joint body is provided with the tool holding portion with plane, the curtain-shaped cover member that becomes tubular can be rotated for described relatively tool holding portion by chimeric at the peripheral part of described joint body, and in the hidden position of covering described tool holding portion and described tool holding portion can be moved along described joint body axial direction to outside exposing between the position of exposing, the side face of either party's parts of the outer circumferential face of described joint body and the inner peripheral surface of described curtain-shaped cover member is provided with the back-up ring that roughly becomes C word shape and energy hole enlargement undergauge, it can not move on the axial direction of a described quadrate part spare but energy hole enlargement undergauge, and on the opposing party's parts, be formed with ring-type engagement groove and a plurality of releasing groove, this engagement groove engages with described back-up ring and thus described curtain-shaped cover member card is ended in described hidden position, this is removed groove and extends to the axial direction of described the opposing party's parts, one end is opened and the other end intersects with described engagement groove to the axial direction of described the opposing party's parts, described engaging releasing appliance possesses first, the second tools structure parts, can be mutually between its end separately near and leave and link revolvably between separately the other end, described first, the second tools structure parts can rotate between insertion position and chimeric position, this insertion position is for making the described joint body can be described first, between the second tools structure parts end separately to its radially by and withdraw from, this chimeric position is described first, form between the opposing side of the second tools structure parts and described joint body is moved and can not be on axial direction to the position of radially carrying out chimeric limiting holes movably, described first, the second tools structure parts are provided with the releasing axial region, it is being positioned at described first of described chimeric position, the second tools structure parts to described curtain-shaped cover member when mobile, insert to described a plurality of releasing grooves from removing each open end of groove respectively, described back-up ring is removed for the fastening state of described engagement groove by making described back-up ring undergauge or hole enlargement.
According to the present invention with said structure characteristics, the curtain-shaped cover member that is positioned at hidden position covers tool holding portion.Though therefore the instrument class is run into curtain-shaped cover member in pipe distribution operation, the instrument class is bumped the plane less than tool holding portion.Therefore, joint body or nut can not rotate and relax.In addition, even the therefore rotation of curtain-shaped cover member because the instrument class is run into curtain-shaped cover member, because curtain-shaped cover member can rotate with respect to joint body and tool holding portion, so only be the curtain-shaped cover member rotation, joint body or nut do not rotate.
Description of drawings
Fig. 1 is expression pipe joint first an embodiment's of the present invention plan view;
Fig. 2 is same embodiment's a plan view;
Fig. 3 is the sectional view along the X-X line of Fig. 2;
Fig. 4 is the sectional view along the Y-Y line of Fig. 2;
Fig. 5 is at the plan view that curtain-shaped cover member is taken off the same embodiment of expression under the state;
Fig. 6 is taking off the plan view of the same embodiment of expression under the state to curtain-shaped cover member and back-up ring;
Fig. 7 is the plan view that is illustrated in the curtain-shaped cover member that uses among the same embodiment;
Fig. 8 is the sectional view along the X-X line of Fig. 7;
Fig. 9 is the worm's eye view of same curtain-shaped cover member;
Figure 10 is the plan view that is illustrated in the back-up ring that uses among the same embodiment;
Figure 11 is the figure that is illustrated in the holding member that is used to maintain curtain-shaped cover member among the same embodiment under the state that nut exposes, and Figure 11 (A) is its plan view, and Figure 11 (B) is its side view;
Figure 12 is that expression uses same embodiment's pipe joint the plan view of the gas introduction port of first side and second side gas tube and gas meter and gas export mouth difference coupled condition;
Figure 13 is the longitudinal section of state before expression screws the gas introduction port of same embodiment's nut and gas meter;
Figure 14 is the longitudinal section of state after expression screws the gas introduction port of same embodiment's nut and gas meter;
Figure 15 is that expression screws the back to same embodiment's nut between nut and the curtain-shaped cover member holding member being taken off the longitudinal section of state;
The longitudinal section of Figure 16 state that to be the expression curtain-shaped cover member that makes same embodiment move to hidden position;
The plan view of Figure 17 employed engaging releasing appliance that is the same embodiment of expression when removing the engaging of curtain-shaped cover member and joint body;
Figure 18 is that the X of Figure 17 is to view;
Figure 19 makes first, second tools structure parts be positioned at the plan view of the same engaging releasing appliance of expression under the state of insertion position;
Figure 20 is the longitudinal section that expression is entrenched in same engaging releasing appliance joint body large-diameter portion state;
Figure 21 is that expression utilizes same engaging releasing appliance to remove the longitudinal section of the state that curtain-shaped cover member engages with joint body;
Figure 22 is that expression moves to the longitudinal section that exposes location status having removed the curtain-shaped cover member that engages with joint body;
Figure 23 is expression pipe joint second an embodiment's of the present invention plan view;
Figure 24 is same embodiment's a plan view;
Figure 25 is same embodiment's a longitudinal section;
Figure 26 is with Figure 18 same figure of expression with the employed engagement release parts of embodiment;
Figure 27 is that expression uses same engagement release parts to remove the longitudinal section of the state that curtain-shaped cover member engages with joint body;
Figure 28 is at the longitudinal section that nut is screwed expression pipe joint the 3rd embodiment of the present invention under the state that is fixed on the gas introduction port;
Figure 29 is at the longitudinal section that curtain-shaped cover member is temporarily fixed at the same embodiment of expression under the state that exposes the position;
Figure 30 is at the longitudinal section of the contact of the conical surface of curtain-shaped cover member being represented same embodiment under the state on the back-up ring;
Figure 31 is the longitudinal section same with Figure 30 of unfavorable condition when not satisfying rated condition among the same embodiment of expression;
Figure 32 is that expression uses the engagement release parts to remove the longitudinal section of the state that same embodiment's curtain-shaped cover member engages with joint body;
Figure 33 is the enlarged view of the major component of Figure 32.
Symbol description
1 pipe joint, 1 ' pipe joint 1 " pipe joint 2 joint bodies
The 2d annular recessed portion 2f of 2a outer cone thread portion (screw section) engagement groove
2g removes groove 2i inside tapered thread portion (screw section)
2j downside large-diameter portion (rear part) 2k upside large-diameter portion (the place ahead part)
3 nut 3a spanner clamping parts (tool holding portion), 4 curtain-shaped cover members
The temporary fixed groove of 4g (temporary fixed portion) 5 back-up rings
8 engaging releasing appliance 8 ' engaging releasing appliance 8 " engaging releasing appliances
The 8A first tools structure parts 8B second tools structure parts
Embodiment
Followingly be used to implement embodiments of the invention with reference to description of drawings.
Figure 12 represents that one of pipe joint 1 of the present invention makes use-case, and first side is connected with gas meter M by pipe joint 1,1 with second side gas tube G1, G2.That is, each end of first side and second side gas tube G1, G2 is erect setting and is fixed on the ground (not shown), and each the other end bends to the word of falling U shape ground vertically towards the below.Be provided with gas introduction port M1 and gas above the gas meter M and derive M2.First side gas tube G1 is connected with gas introduction port M1 by pipe joint 1, and second side gas tube G2 derives M2 by pipe joint 1 and gas and is connected.Pipe joint 1 also can use with being connected in the connection in addition of introducing port export mouth M1, M2 with second side gas tube G1, G2 at first side.And first side gas tube G1 is identical with the Connecting format of gas export mouth M2 by pipe joint 1 with Connecting format and the second side gas tube G2 of gas introduction port M1 by pipe joint 1.So, below the former Connecting format only is described.
The structure of described pipe joint 1 at first is described.As Fig. 1～shown in Figure 4, pipe joint 1 has: joint body 2, nut 3 and curtain-shaped cover member 4.
Intermediate portion at large-diameter portion 2b above-below direction is formed with annular recessed portion 2d.Back-up ring 5 is assembled among this annular recessed portion 2d.Back-up ring 5 wire rods by rubber-like section circles such as steel constitute, and are formed roughly C word shape as shown in figure 10.Therefore back-up ring 5 utilizes elastic energy hole enlargement and the undergauge of himself, at back-up ring 5 under the nature that is not subjected to the external force effect, only there is half part of lacking a little to be housed in the annular recessed portion 2d than all sides in the back-up ring 5, and more outstanding to the outside than half part of Duoing a little of outer circumferential side from annular recessed portion 2d.Back-up ring 5 can make its integral body enter in the annular recessed portion 2d by undergauge.As Fig. 4 and shown in Figure 10, be formed with to the outstanding protuberance 5a of radially inner side at back-up ring 5 circumferential ends.This protuberance 5a is inserted in the positioning hole 2e that forms on the bottom surface of annular recessed portion 2d.Like this, back-up ring 5 is just by in circumferential location.But also can not form protuberance 5a.In this case, back-up ring 5 is assembled in annular recessed portion 2d and can upwards rotates in week.
As Fig. 3～shown in Figure 6, can rotate and can go up the mode that moves at the axial direction (above-below direction) of joint body 2, the underpart of the upper end portion of nut 3 and large-diameter portion 2b is chimeric.But the moving range of nut 3 is limited in by back-up ring 5 and prevents deviating from the narrow range of parts 6 defineds, and nut 3 is by preventing that deviating from parts 6 is prevented from deviating from from large-diameter portion 2b downwards.Nut 3 also can not move on the axial direction of joint body 2.The outer circumferential face of nut 3 is formed with spanner clamping part (tool holding portion) 3a.Spanner clamping part 3a has eight planes of extending with the parallel axes of nut 3 and forms the section octagon.Spanner clamping part 3a also can form the section regular hexagon, or also can be only to have across nut 3 axis and relatively to two parallel planes.The 3b of straight thread portion in the lower portion of preventing deviating from parts 6 in the inner peripheral surface of nut 3 is formed with.
As Fig. 1～Fig. 4 and Fig. 7～shown in Figure 9, curtain-shaped cover member 4 is made of the cylindrical shell of section circle, and the upper end portion of inner circumferential surface is formed with cyclic lug 4a.This cyclic lug 4a has the internal diameter roughly the same with the external diameter of large-diameter portion 2b, is entrenched on the periphery of large-diameter portion 2b can rotate and can go up the mode that moves at axial direction (above-below direction).The scope that curtain-shaped cover member 4 moves downwards abuts to the top of nut 3 and is limited below cyclic lug 4a.Following the position of curtain-shaped cover member 4 at this moment is called hidden position.When curtain-shaped cover member 4 was positioned at hidden position, the spanner clamping part 3a of nut 3 entered in the curtain-shaped cover member 4 at least.Particularly in the present embodiment, nut 3 integral body enter in the curtain-shaped cover member 4 and are covered from the outside.Therefore, when curtain-shaped cover member 4 was positioned at hidden position, spanner can not be clamped on the spanner clamping part 3a, consequently can not carry out the rotary manipulation of nut 3 from the outside.And owing to curtain-shaped cover member 4 can rotate with respect to nut 3, so even curtain-shaped cover member 4 rotations can not make nut 3 rotations.Curtain-shaped cover member 4 can be moved upward up at least the part (underpart) of the spanner clamping part 3a of nut 3 being exposed from curtain-shaped cover member 4, and shown in the imaginary line of Fig. 3, present embodiment is can be moved upward nut 3 integral body are withdrawn from curtain-shaped cover member 4.The following position of curtain-shaped cover member 4 at this moment is called, exposed the position.
The inner peripheral surface of cyclic lug 4a is formed with the engagement groove 4b that ring-type is extended.This engagement groove 4b is configured to relative with the peripheral part of back-up ring 5 when curtain-shaped cover member 4 is positioned at hidden position.Back-up ring 5 was roughly the same from the outstanding amount of annular recessed portion 2d when the degree of depth of engagement groove 4b was configured to nature.The width of engagement groove 4b is configured to the wire rod external diameter that constitutes back-up ring 5 roughly the same.The bottom surface of engagement groove 4b is formed the section semicircle shape, and its radius of curvature is configured to the radius of back-up ring 5 wire rods roughly the same.Therefore, when curtain-shaped cover member 4 was positioned at hidden position, the peripheral part of giving prominence to the outside from annular recessed portion 2d of back-up ring 5 was embedded in the engagement groove 4b.Like this, curtain-shaped cover member 4 is just ended at the hidden position place by card.And the bi-side up and down of engagement groove 4b be by horizontal plane (with the plane of the orthogonal axe of joint body 2 and curtain-shaped cover member 4) constitute.Therefore, even the masterpiece of oriented above-below direction is used on the curtain-shaped cover member 4, back-up ring 5 can be by the bi-side up and down of engagement groove 4b yet undergauge.And as above like that the hole enlargement of back-up ring 5 is stuck groove 4b and stops.Therefore, only otherwise make back-up ring 5 undergauges and its peripheral part is taken off from engagement groove 4b, then curtain-shaped cover member 4 just can not move from the axial direction of hidden position to joint body 2.Like this, with regard to having prevented by contingency or mischief and the curtain-shaped cover member that causes 4 move from hidden position.The bottom surface of engagement groove 4b also can not be the section semicircle shape, but becomes the quadrature of side up and down of section straight line shape and engagement groove 4b.Even certainly at this moment, the degree of depth of engagement groove 4b also is that back-up ring 5 is roughly the same from the outstanding amount of annular recessed portion 2d when being configured to nature.
The inner peripheral surface of cyclic lug 4a is formed with conical surface 4c.This conical surface 4c extends to the lower surface of cyclic lug 4a from the side of engagement groove 4b downside, towards the below by hole enlargement.The internal diameter of conical surface 4c underpart is bigger a little than the external diameter of back-up ring 5.Therefore, when curtain-shaped cover member 4 from exposing position side when hidden position moves to assigned position, the outer circumferential face butt of conical surface 4c and back-up ring 5.If further move downwards at the following curtain-shaped cover member 4 of this state, then back-up ring 5 with regard to passing through conical surface 4c by undergauge.When curtain-shaped cover member 4 was moved to hidden position, then engagement groove 4b was relative with back-up ring 5.At this moment back-up ring 5 is with regard to the elasticity of utilizing himself and hole enlargement and turn back to nature, and the peripheral part of back-up ring 5 is embedded among the engagement groove 4b.Like this, curtain-shaped cover member 4 is just sentenced the mode that can rotate but can not move to the axial direction of joint body 2 position that is fixed in hidden position on joint body 2.
The inner peripheral surface of cyclic lug 4a is formed with a plurality of (present embodiment is 6) removes groove 4d.This releasing groove 4d uses when using aftermentioned engaging releasing appliance 8 to remove engaging of curtain-shaped cover member 4 and back-up ring 5, to make progress in the week that uniformly-spaced is configured in cyclic lug 4a.Remove the axis extension of groove 4d along curtain-shaped cover member 4.Remove end opening on curtain-shaped cover member 4 of groove 4d length direction.The other end of removing groove 4d arrives the lower end surface of cyclic lug 4a across engagement groove 4b.The other end of removing groove 4d also can be positioned on the end face of engagement groove 4b downside.The degree of depth of removing groove 4d is configured to darker than the degree of depth of engagement groove 4b at least.
As Fig. 2 and shown in Figure 7, on curtain-shaped cover member 4, be formed with mark 4e.This mark 4e is that the width with regulation extends to inner peripheral surface from the outer circumferential face of curtain-shaped cover member 4 on the diameter line of curtain-shaped cover member 4.Mark 4e also can be formed the point-like of prescribed level.Mark 4e forms by coating such as redness are coated on the top of curtain-shaped cover member 4, but also can be the recess with depth as shallow of Rack or size, or also can be the structure to this recess coating composition.Mark 4e is configured in two central authorities that remove between groove 4d, the 4d of circumferential adjacency.
Illustrate that according to Figure 13～Figure 15 the pipe joint 1 that uses said structure connects the situation of the gas introduction port M1 of first side gas tube G1 and gas meter M below.In Figure 13～Figure 15, omitted first side gas tube G1.When connecting the gas introduction port M1 of first side gas tube G1 and gas meter M, at first the 2a of outer cone thread portion of joint body 2 is screwed on the end that is fixed on first side gas tube G1 downstream side.Then nut 3 is screwed with gas introduction port M1.At first is nut 3 with the handling rotation when gas introduction port M1 screws, and is to come rotary manipulation by spanner in the final stage that screws.At this moment curtain-shaped cover member 4 is if might freely move downwards, and then curtain-shaped cover member 4 can become the obstacle of operating nut 3 rotations.At this, when screwing nut 3, preferably use holding member shown in Figure 11 7.
Holding member 7 comprises: become roughly 2/3 circular-arc filling part 7a and from the circumferential central part of this filling part 7a outer circumferential face to the outstanding handle 7b of radial outside.The internal diameter of filling part 7a is configured to bigger than the external diameter of large-diameter portion 2b, but littler than the external diameter of nut 3 upper ends.The interval at filling part 7a two end part is configured to roughly the same or big a little with the external diameter of large-diameter portion 2b, radially passes to it can make large-diameter portion 2b between two end part.Therefore, can after insertion, can be placed on filling part 7a above the nut 3 from inserting large-diameter portion 2b between the two end part of filling part 7a.The external diameter of the external diameter of filling part 7a and curtain-shaped cover member 4 is roughly the same.Therefore, can be placed on curtain-shaped cover member 4 on the filling part 7a.Handle 7b is formed in large-diameter portion 2b and is entrenched in the filling part 7a and curtain-shaped cover member 4 is placed on filling part 7a when going up, and is outstanding to its radial outside from the outer circumferential face of curtain-shaped cover member 4.Therefore, under the state of handle 7b dominated by hand, be inserted into large-diameter portion 2b in the filling part 7a after, as Figure 13 and shown in Figure 14, can be placed on filling part 7a on the nut 3, and curtain-shaped cover member 4 is placed on the filling part 7a, so just can remain on curtain-shaped cover member 4 upside of nut 3.
When nut 3 and gas introduction port M1 being screwed when screwing, the cyclic lug 2c of joint body 2 and the inner peripheral surface of gas introduction port M1 are chimeric, and the top following face contact of passing through sealing gasket P and joint body 2 of gas introduction port M1.Like this, joint body 2 just is tightly connected with gas introduction port M1, and then first side gas tube G1 and gas introduction port M1 just are tightly connected by joint body 2.
As Figure 15 and shown in Figure 16, holding member 7 is extracted between nut 3 and curtain-shaped cover member 4 then.So curtain-shaped cover member 4 moves downwards with its deadweight, stops when conical surface 4c runs into 5 of back-up rings.At this, when curtain-shaped cover member 4 is pressed downwards with the power of regulation, then back-up ring 5 is by undergauge, and curtain-shaped cover member 4 moves downwards.When curtain-shaped cover member 4 moves to hidden position, then back-up ring 5 utilizes the elasticity of himself and turns back to nature, and the peripheral part of back-up ring 5 is embedded among the engagement groove 4b.Like this, curtain-shaped cover member 4 can rotate on joint body 2 and can not move to the axial direction of joint body 2 with regard to being joined into.
According to the pipe joint 1 of said structure, because the spanner clamping part 3a crested parts 4 of nut 3 cover, so nut 3 can not rotate owing to contingency or mischief.Therefore, can prevent that nut 3 from relaxing and situation that joint body 2 is deviate from from gas introduction port M1.Certainly, curtain-shaped cover member 4 is to be rotated, but because curtain-shaped cover member 4 energy opposing tabs bodies 2 and nut 3 rotations, so even curtain-shaped cover member 4 is rotated, but can therefore not make joint body 2 and/or nut 3 rotations.And, because curtain-shaped cover member 4 stops the rotations of nuts 3 separately, so even also can stop the rotation of nut 3 when pipe joint 1 is used alone.
Sometimes need to change the gas meter M that is connected with second side gas tube G1, G2 with first side.At this moment just must unload nut 3,3 down from gas introduction port M1 and gas export mouth M2, just need move from hidden position curtain-shaped cover member 4 to exposing the position.Curtain-shaped cover member 4 from hidden position to exposing the position when moving, use Figure 17～engaging releasing appliance 8 shown in Figure 19.
Engaging releasing appliance 8 has first, second tools structure parts 8A, 8B.Be joined into phase mutual energy rotation by axle 8C between the radicle of first, second tools structure parts 8A, 8B.First, second tools structure parts 8A, 8B can rotate between chimeric position shown in Figure 17 and insertion position shown in Figure 19 at least.As first, second tools structure parts 8A, when 8B is positioned at chimeric position, then first, second tools structure parts 8A, 8B relatively to face between substantial middle portion form limiting holes 8a, between the front end of first, second tools structure parts 8A, 8B, form gap 8b.The internal diameter of limiting holes 8a is configured to the large-diameter portion 2b external diameter of joint body 2 roughly the same.The width of gap 8b is configured to the width of the mark 4e of curtain-shaped cover member 4 roughly the same.As first, second tools structure parts 8A, when 8B is positioned at the insertion position, the interval between first, second tools structure parts 8A, the 8B front end is wideer than the external diameter of large-diameter portion 2b.Therefore, can move radially large-diameter portion 2b and be inserted between first, second tools structure parts 8A, the 8B to it.When first, second tools structure parts 8A, 8B are rotated to chimeric position, then large-diameter portion 2b and limiting holes 8a are chimeric after the insertion.Like this, first, second tools structure parts 8A, 8B can not move radially to it with respect to large-diameter portion 2b, but can move on axial direction.
Below first, second tools structure parts 8A, 8B, be formed with respectively and remove axial region 8c.Remove axial region 8c and be configured to and remove the same quantity of groove 4d.Each is removed axial region 8c and is configured to join with the inner peripheral surface of limiting holes 8a.And, under large-diameter portion 2b is entrenched in state among the limiting holes 8a, gap 8b is made with mark 4e circumferentially being positioned at same position and engages releasing appliance 8 when assigned position rotates, each remove axial region 8c be configured to each remove groove 4d on the axial direction of curtain-shaped cover member 4 relative respectively to.Remove axial region 8c and have roughly the same section shape with releasing groove 4d.Therefore as shown in figure 20, following of the state that is entrenched in the limiting holes 8a at the large-diameter portion 2b of curtain-shaped cover member 4 upsides engages releasing appliance 8 when curtain-shaped cover member 4 moves closer to, and as shown in figure 21, each is removed axial region 8c and is inserted in the releasing groove 4d from its underpart.Be formed with in the bottom of the side that the inner peripheral surface of removing axial region 8c and limiting holes 8a joins along with downwards and the plane of inclination 8d that tilts from the mode that the inner peripheral surface of limiting holes 8a leaves.Distance between the lower edge of this plane of inclination 8d and the inner peripheral surface of limiting holes 8a is configured to bigger from the outstanding amount of annular recessed portion 2d than back-up ring 5.Therefore, when engaging releasing appliance 8 is moved downwards remove axial region 8c from the upper end open portion that removes groove 4d when removing groove 4d and insert, the outer circumferential face butt of plane of inclination 8d and back-up ring 5.Therefore, when engaging releasing appliance 8 further being moved downwards up to the upper surface butt of curtain-shaped cover member 4 time, each plane of inclination 8d that removes axial region 8c makes back-up ring 5 undergauges, and back-up ring 5 is deviate from from engagement groove 4b.Therefore, curtain-shaped cover member 4 is disengaged with engaging of back-up ring 5, and as shown in figure 22, curtain-shaped cover member 4 can move to from hidden position and expose the position.After curtain-shaped cover member 4 being moved to expose the position, then can unscrew nut 3 and unload down from joint body 2, can unload gas meter M down from first side gas tube G1 thus.
The following describes other embodiments of the present invention.For following embodiment the structure different with the foregoing description only is described, then uses identical reference character and omit its explanation for structure same as the previously described embodiments.
Figure 23～Figure 27 represents the second embodiment of the present invention.This embodiment's pipe joint 1 ' form annular recessed portion 4f at the inner peripheral surface of the cyclic lug 4a of curtain-shaped cover member 4.Back-up ring 5 is assemblied in this annular recessed portion 4f.Back-up ring 5 under nature, be inserted in the annular recessed portion 4f than the big a little peripheral part of central diameter (=(external diameter+internal diameter)/2) and can the hole enlargement undergauge, just over half interior perimembranous outstanding to the inside from annular recessed portion 4f.Back-up ring 5 energy hole enlargements are to its integral body is entered in the annular recessed portion 4f.
On the other hand, on the large-diameter portion 2b of joint body 2 outer circumferential face, be formed with engagement groove 2f.Certainly the shape of engagement groove 2f and position are decided to be and make back-up ring 5 be embedded into engagement groove 2f from the outstanding perimembranous of annular recessed portion 4f when curtain-shaped cover member 4 is positioned at hidden position.Therefore, when curtain-shaped cover member 4 is positioned at hidden position, is blocked and only on joint body 2, can rotate but can not move.
On the outer circumferential face of large-diameter portion 2b front end, be formed with the conical surface 2g of undergauge upward.Curtain-shaped cover member 4 from exposing the position when hidden position moves to assigned position, the interior perimembranous butt of this conical surface 2g and back-up ring 5 and along with curtain-shaped cover member 4 makes back-up ring 5 hole enlargements to moving of hidden position side.When curtain-shaped cover member 4 is moved to hidden position, back-up ring 5 undergauges as shown in figure 25, perimembranous is embedded among the engagement groove 2f in it.Consequently ended on joint body 2 by card by back-up ring 5 curtain-shaped cover members 4.
For the curtain-shaped cover member 4 that is ended in hidden position by card can be moved to exposing position side, on large-diameter portion 2b, be formed with releasing groove 2h.Removing groove 2h extends downwards from the upper-end surface of large-diameter portion 2b and cross-section engagement groove 2f.Curtain-shaped cover member 4 when exposing position side and move, use engaging releasing appliance 8 shown in Figure 26 '.It is roughly the same that the section shape of this engaging releasing appliance 8 ' middle releasing axial region 8c forms and remove the section shape of groove 2h.Be formed with plane of inclination 8e in the underpart, side toward the outer side of removing axial region 8c, it is with along with tilting near the mode of the inner peripheral surface of limiting holes 8a downwards.Remove axial region 8c when releasing groove 2h is inserted into assigned position at handle, the inner peripheral surface butt of plane of inclination 8e and back-up ring 5.Along with the insertion back-up ring 5 of removing axial region 8c by hole enlargement, deviate from from engagement groove 2f as shown in figure 27.When an engaging releasing appliance 8 ' when moving to, remove the side (being positioned at the side on 8e top, plane of inclination) and back-up ring 5 butts in the axial region 8c outside, the state that back-up ring 5 is kept deviate from from engagement groove 2f with curtain-shaped cover member 4 butts.Therefore, curtain-shaped cover member 4 is moved to engaging releasing appliance 8 ' from hidden position and expose the position.Other structure is then same as the previously described embodiments.
Figure 28～Figure 30 represents the third embodiment of the present invention.This embodiment's pipe joint 1 " is formed with the 2i of inside tapered thread portion (screw section) on the inner peripheral surface of the upper end portion (end) of joint body 2.The 2i of this inside tapered thread portion replaces the 2a of outer cone thread portion of the foregoing description and screws fixing with the downstream side end of first side gas tube.Also can replace the 2i of inside tapered thread portion and form interior straight thread portion.
Be formed with large-diameter portion 2b and annular recessed portion 2d at the upper end portion of joint body 2 outer circumferential face.The external diameter of large-diameter portion 2b is that the boundary changes with annular recessed portion 2d, and the part of annular recessed portion 2d downside (the rear part below is called downside large-diameter portion 2j) is bigger than part (the place ahead part below the is called upside large-diameter portion 2k) diameter of upside.The degree of depth of the annular recessed portion 2d of the degree of depth of annular recessed portion 2d when consequently being benchmark with downside large-diameter portion 2j when being benchmark with upside large-diameter portion 2k differs from one another.Certainly, the former depth ratio latter's the degree of depth is dark.The former degree of depth is configured to bigger a little than the wire rod external diameter that constitutes back-up ring 5.The latter's the degree of depth is configured to the wire rod external diameter that constitutes back-up ring 5 roughly the same.The latter's the degree of depth also can be configured to a little littler than the wire rod external diameter that constitutes back-up ring 5.Be positioned at annular recessed portion 2d on the side of upside large-diameter portion 2k side and be formed with by the conical surface 21 of hole enlargement upward.
The external diameter of the internal diameter of back-up ring 5 and external diameter and downside large-diameter portion 2j is defined as satisfying following conditions interrelatedly under the internal diameter of annular recessed portion 2d, the nature.Promptly, as shown in figure 30, back-up ring 5 when it moves radially to the limit, present embodiment is that back-up ring 5 is moved radially when making back-up ring 5 sidepiece radially abut to a sidepiece of annular recessed portion 2d bottom surface to it, the interior perimembranous of back-up ring 5 the other sides enters in the annular recessed portion 2d.The internal diameter of annular recessed portion 2d is being set at D1, the internal diameter of back-up ring under the nature 5 and external diameter are being set at d1, d2 respectively, when the external diameter of downside large-diameter portion 2j is set at D2, deciding each diameter then can satisfy this condition by satisfying following two formulas.
(D2-D1)/2＞(d1-D1)
(D2-D1)/2＞(d2-d1)/2
The length of the cyclic lug 4a of curtain-shaped cover member 4 is than cyclic lug 4a phenomenal growth in the foregoing description in the present embodiment.Dispose engagement groove 4b in the upper end portion of cyclic lug 4a.The bottom surface of engagement groove 4b is not to be formed the section semicircle shape, but is formed and the section straight line shape of bi-side quadrature up and down.The underpart of cyclic lug 4a disposes conical surface 4c.Conical surface 4c is relative, and engagement groove 4b leaves downwards.On the cyclic lug 4a inner peripheral surface between engagement groove 4b and the conical surface 4c, be formed with the temporary fixed groove of ring-type (temporary fixed portion) 4g.As shown in figure 29, this temporary fixed groove 4g is configured to be positioned at when exposing the position relative with back-up ring 5 at curtain-shaped cover member 4.Present embodiment is positioned at curtain-shaped cover member 4 and curtain-shaped cover member 4 integral body is decided when exposing the position to expose the position from nut 3 with leaving upward.
The internal diameter of temporary fixed groove 4g is determined, and its outer circumferential face is in the contact of the bottom surface of the complete temporary fixed groove 4g of Zhou Shangyu under the state of undergauge a little at back-up ring 5, and the wire rod radius that the depth ratio of temporary fixed groove 4g constitutes back-up ring 5 is shallow.Owing to be such setting, thus when curtain-shaped cover member 4 when exposing the position direction move up and down, the upside side of temporary fixed groove 4g or downside side contact with back-up ring 5 outside the center that constitutes back-up ring 5 wire rods.Therefore when the power more than the prescribed level upward or below when acting on the curtain-shaped cover member 4, while curtain-shaped cover member 4 make back-up ring 5 resist himself elastic force and undergauge upward or the below move.In other words, the power with prescribed level stops curtain-shaped cover member 4 to move from exposing the position to temporary fixed groove 4g by engaging with back-up ring 5.Should prevention power be formed in the present embodiment by the conical surface 4h that becomes path upward of temporary fixed groove 4g upside side, so stop curtain-shaped cover member 4 from exposing the position to hidden position shown in Figure 28, that is, stop its force rate that moves to stop a little less than its power that is moved upward downwards.Wherein, the tapering angle of conical surface 4h is defined as stoping curtain-shaped cover member 4 to be moved from exposing the position by its deadweight downwards.
Use the pipe joint 1 of said structure and " when connecting first side gas tube G1 and gas introduction port M1, at first insert curtain-shaped cover member 4 from the upper end portion of joint body 2.When curtain-shaped cover member 4 opposing tabs bodies 2 are inserted into assigned position downwards, then as shown in figure 30, conical surface 4c and back-up ring 5 butts.At this, as shown in figure 31, when a sidepiece of supposing back-up ring 5 abutted to a sidepiece of annular recessed portion 2d bottom surface, the other side of back-up ring 5 was outstanding laterally from the other side of annular recessed portion 2d.At this moment conical surface 4c is not and full week of back-up ring 5 butt simultaneously, and only is the other side butt with back-up ring 5.Like this, the other side of back-up ring 5 just abuts to the large-diameter portion 2b outer circumferential face of annular recessed portion 2d downside.Back-up ring 5 can not undergauge under this state, and curtain-shaped cover member 4 can not be moved downwards from exposing the position.
This is at the pipe joint 1 of present embodiment " in be at back-up ring 5 in the raw the time, no matter back-up ring 5 is with what kind of form to be assemblied among the annular recessed portion 2d, at least in the part of all sides enter in the annular recessed portion 2d.Therefore, when conical surface 4c abuts to back-up ring 5, must accommodate back-up ring 5 undergauges in the annular recessed portion 2d to its integral body.Therefore, curtain-shaped cover member 4 is moved to reliably and expose the position.
Then, the downstream side end of first side gas tube G1 is screwed on the 2i of inside tapered thread portion that is fixed on joint body 2.Then nut 3 is screwed on gas introduction port M1 and screw.At this moment, because curtain-shaped cover member 4 is to be positioned to expose the position, so can easily screw nut 3.And curtain-shaped cover member 4 is not use holding member 7 just can be positioned to expose the position, so operation is convenient.When the end that screws of nut 3, then curtain-shaped cover member 4 is moved to hidden position from exposing the position.Like this, the end that is connected of first side gas tube G1 and gas introduction port M1.
Gas introduction port M1 when first side gas tube G1 unloads down, shown in 32, is used engaging releasing appliance 8 ".As shown in figure 33, engage releasing appliance 8 and " be formed with at the inner side surface of removing axial region 8c and dodge face 8f and surface of contact 8g.The face 8f of dodging is configured to intersect with its upper end portion at the upside of plane of inclination 8d, and is when the butt of the lower end surface of the front-end face (lower end surface among Figure 32) of removing axial region 8c and releasing groove 4d, relative with downside large-diameter portion 2j with the underpart of annular recessed portion 2d.By all diameters of removing the circle (dodging the tangent circle of face 8f) that the face of respectively the dodging 8f of axial region 8c constituted with all be configured to respect to downside large-diameter portion 2j be equal more than.On the other hand, surface of contact 8g is configured to extend on the inner side surface of removing axial region 8c and dodges face 8f, and is when the butt of the lower end surface of the front-end face of removing axial region 8c and releasing groove 4d, relative with upside large-diameter portion 2k with the upper end portion of annular recessed portion 2d.With all remove the tangent diameter of a circle of each surface of contact 8g of axial region 8c be configured to external diameter with upside large-diameter portion 2k be equal more than, but for the external diameter of downside large-diameter portion 2j be equal below.Other structure is identical with engaging releasing appliance 8.
The releasing axial region 8c of " make back-up ring 5 deviate from and curtain-shaped cover member 4 is moved to when exposing the position from hidden position from engagement groove 4b, shown in figure 32, engaging releasing appliance 8 " is inserted among the releasing groove 4d to use engaging releasing appliance 8.Like this, by plane of inclination 8d, dodge face 8f and surface of contact 8g makes back-up ring 5 undergauge in turn.Since by the formed diameter of a circle of surface of contact 8g be configured to be external diameter for downside large-diameter portion 2j be equal below, so back-up ring 5 with regard to undergauge to downside large-diameter portion 2j on an equal basis below.Therefore curtain-shaped cover member 4 is successfully moved to from hidden position and expose the position.
The present invention is not limited to the foregoing description, can suitably change in the scope that does not break away from its main idea.
For example the pipe joint of the foregoing description is provided with the nut 3 with internal thread part 3b in the underpart (the other end) of joint body 2, but also can form the external thread part that replaces nut 3 internal thread part 3b in the underpart of joint body 2.At this moment, the peripheral part of the 2a of the outer cone thread portion joint body 2 in addition that forms in an end of external thread part and joint body 2, that is, and at the intermediate portion formation spanner clamping part of joint body 2 peripheral parts.
In the embodiment of Figure 28～shown in Figure 30, also can similarly be arranged on back-up ring 5 on the curtain-shaped cover member 4 with Figure 23～embodiment illustrated in fig. 27.At this moment, temporary fixed groove (temporary fixed portion) is arranged on the outer circumferential face of joint body 2.
Replace temporary fixed groove that protuberance (temporary fixed portion) also can be set and come to be positioned at when exposing the position at curtain-shaped cover member 4 and engage with back-up ring 5, the power with prescribed level stops curtain-shaped cover member 4 from exposing the position to the hidden position side shifting thus.
When back-up ring 5 is deviate from from removing groove 2g or 4d, the quantity of removing groove 2g or 4d is formed when only being one or two, do not use engaging releasing appliance 8,8 ', 8 ", and back-up ring 5 is deviate from from engagement groove 2f or 4b by axis bodies such as screwdriver being inserted into respectively respectively remove.
Claims (11)
1. pipe joint, it possesses the joint body that portion at least at one end is formed with the tubular of screw section, and the peripheral part of this joint body is provided with the tool holding portion with plane, it is characterized in that,
The curtain-shaped cover member that becomes tubular can be rotated for described relatively tool holding portion by chimeric at the peripheral part of described joint body, and in the hidden position of covering described tool holding portion and described tool holding portion can be moved along described joint body axial direction to outside exposing between the position of exposing, the side face of either party's parts of the outer circumferential face of described joint body and the inner peripheral surface of described curtain-shaped cover member is provided with the back-up ring that roughly becomes C word shape and energy hole enlargement undergauge, it can not move on the axial direction of a described quadrate part spare but energy hole enlargement undergauge, and on the opposing party's parts, be formed with ring-type engagement groove and a plurality of releasing groove, this engagement groove engages with described back-up ring and thus described curtain-shaped cover member card is ended in described hidden position, this is removed groove and extends to the axial direction of described the opposing party's parts, and an end is opened and the other end intersects with described engagement groove to the axial direction of described the opposing party's parts.
2. pipe joint as claimed in claim 1 is characterized in that periphery is provided with nut revolvably in the other end of described joint body, is provided with described tool holding portion at the outer circumferential face of described nut.
3. pipe joint as claimed in claim 1, it is characterized in that, on a described quadrate part spare, be formed with annular recessed portion, it is accommodated the back-up ring of the nature that does not have the hole enlargement undergauge and makes it and can not move on the axial direction of a described quadrate part spare, and can accommodate the back-up ring integral body of undergauge, the internal diameter of this annular recessed portion, the internal diameter of described back-up ring, and from described expose the position towards on the direction of described hidden position and the relation between the external diameter of a described quadrate part spare of the front side adjacency of described annular recessed portion be set to: on the sidepiece that radially abuts to described annular recessed portion near the radially sidepiece up to the back-up ring of described nature of described annular recessed portion the time, the other side of described back-up ring is positioned at the other side of described annular recessed portion described back-up ring.
4. pipe joint as claimed in claim 2, it is characterized in that, on a described quadrate part spare, be formed with annular recessed portion, can accommodate the back-up ring of the nature that does not have the hole enlargement undergauge and make it and on the axial direction of a described quadrate part spare, can not move, and can accommodate the back-up ring integral body of undergauge, the internal diameter of this annular recessed portion, the internal diameter of described back-up ring, and from described expose the position towards on the direction of described hidden position and the relation between the external diameter of a described quadrate part spare of the front side adjacency of described annular recessed portion be set to: on the sidepiece that radially abuts to described annular recessed portion near the radially sidepiece up to the back-up ring of described nature of described annular recessed portion the time, the other side of described back-up ring is positioned at the other side of described annular recessed portion described back-up ring.
5. pipe joint as claimed in claim 1, it is characterized in that, as as described in making decision the place ahead part and as described in each diameter of rear part, promptly, make from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the place ahead part of a described quadrate part spare that is positioned at front side with respect to described annular recessed portion is as the degree of depth of the described annular recessed portion of benchmark, than from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the rear part of a described quadrate part spare that is positioned at rear side with respect to described annular recessed portion is as the depth as shallow of the described annular recessed portion of benchmark.
6. pipe joint as claimed in claim 2, it is characterized in that, as as described in making decision the place ahead part and as described in each diameter of rear part, promptly, make from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the place ahead part of a described quadrate part spare that is positioned at front side with respect to described annular recessed portion is as the degree of depth of the described annular recessed portion of benchmark, than from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the rear part of a described quadrate part spare that is positioned at rear side with respect to described annular recessed portion is as the depth as shallow of the described annular recessed portion of benchmark.
7. pipe joint as claimed in claim 3, it is characterized in that, as as described in making decision the place ahead part and as described in each diameter of rear part, promptly, make from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the place ahead part of a described quadrate part spare that is positioned at front side with respect to described annular recessed portion is as the degree of depth of the described annular recessed portion of benchmark, than from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the rear part of a described quadrate part spare that is positioned at rear side with respect to described annular recessed portion is as the depth as shallow of the described annular recessed portion of benchmark.
8. pipe joint as claimed in claim 4, it is characterized in that, as as described in making decision the place ahead part and as described in each diameter of rear part, promptly, make from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the place ahead part of a described quadrate part spare that is positioned at front side with respect to described annular recessed portion is as the degree of depth of the described annular recessed portion of benchmark, than from the described hidden position of described curtain-shaped cover member on the described direction of exposing the position, the rear part of a described quadrate part spare that is positioned at rear side with respect to described annular recessed portion is as the depth as shallow of the described annular recessed portion of benchmark.
9. as each described pipe joint of claim 1～8, it is characterized in that, on described the opposing party's parts, temporary fixed portion is set, describedly engage with described back-up ring in the mode that can engage and break away from when exposing the position by being positioned at described curtain-shaped cover member, with the power of prescribed level stop described curtain-shaped cover member from the described position of exposing to described hidden position side shifting.
10. one kind engages releasing appliance, it removes the fastening state of described back-up ring with respect to engagement groove by the back-up ring of a pipe joint being carried out undergauge or hole enlargement, this pipe joint possesses the joint body that portion at least at one end is formed with the tubular of screw section, the peripheral part of this joint body is provided with the tool holding portion with plane, the curtain-shaped cover member that becomes tubular can be rotated for described relatively tool holding portion by chimeric at the peripheral part of described joint body, and in the hidden position of covering described tool holding portion and described tool holding portion can be moved along described joint body axial direction to outside exposing between the position of exposing, the side face of either party's parts of the outer circumferential face of described joint body and the inner peripheral surface of described curtain-shaped cover member is provided with the back-up ring that roughly becomes C word shape and energy hole enlargement undergauge, it can not move on the axial direction of a described quadrate part spare but energy hole enlargement undergauge, and on the opposing party's parts, be formed with ring-type engagement groove and a plurality of releasing groove, this engagement groove engages with described back-up ring and thus described curtain-shaped cover member card is ended in described hidden position, this is removed groove and extends to the axial direction of described the opposing party's parts, one end is opened and the other end intersects with described engagement groove to the axial direction of described the opposing party's parts
It is characterized in that,
This engaging releasing appliance possesses first, the second tools structure parts, can be mutually between its end separately near and leave and link revolvably between separately the other end, described first, the second tools structure parts can rotate between insertion position and chimeric position, this insertion position is for making the described joint body can be described first, between the second tools structure parts end separately to its radially by and withdraw from, this chimeric position is described first, form between the opposing side of the second tools structure parts and described joint body is moved and can not be on axial direction to the position of radially carrying out chimeric limiting holes movably, described first, the second tools structure parts are provided with the releasing axial region, it is being positioned at described first of described chimeric position, the second tools structure parts to described curtain-shaped cover member when mobile, insert to described a plurality of releasing grooves from removing each open end of groove respectively, described back-up ring is removed for the fastening state of described engagement groove by making described back-up ring undergauge or hole enlargement.
11. a pipe connector is characterized in that, it possesses pipe joint and engaging releasing appliance,
Described pipe joint possesses the joint body that portion at least at one end is formed with the tubular of screw section, the peripheral part of this joint body is provided with the tool holding portion with plane, the curtain-shaped cover member that becomes tubular can be rotated for described relatively tool holding portion by chimeric at the peripheral part of described joint body, and in the hidden position of covering described tool holding portion and described tool holding portion can be moved along described joint body axial direction to outside exposing between the position of exposing, the side face of either party's parts of the outer circumferential face of described joint body and the inner peripheral surface of described curtain-shaped cover member is provided with the back-up ring that roughly becomes C word shape and energy hole enlargement undergauge, it can not move on the axial direction of a described quadrate part spare but energy hole enlargement undergauge, and on the opposing party's parts, be formed with ring-type engagement groove and a plurality of releasing groove, this engagement groove engages with described back-up ring and thus described curtain-shaped cover member card is ended in described hidden position, this is removed groove and extends to the axial direction of described the opposing party's parts, one end is opened and the other end intersects with described engagement groove to the axial direction of described the opposing party's parts
Described engaging releasing appliance possesses first, the second tools structure parts, can be mutually between its end separately near and leave and link revolvably between separately the other end, described first, the second tools structure parts can rotate between insertion position and chimeric position, this insertion position is for making the described joint body can be described first, between the second tools structure parts end separately to its radially by and withdraw from, this chimeric position is described first, form between the opposing side of the second tools structure parts and described joint body is moved and can not be on axial direction to the position of radially carrying out chimeric limiting holes movably, described first, the second tools structure parts are provided with the releasing axial region, it is being positioned at described first of described chimeric position, the second tools structure parts to described curtain-shaped cover member when mobile, insert to described a plurality of releasing grooves from removing each open end of groove respectively, described back-up ring is removed for the fastening state of described engagement groove by making described back-up ring undergauge or hole enlargement.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP310525/06 | 2006-11-16 | ||
| JP2006310525 | 2006-11-16 | ||
| JP2007097264A JP2008144959A (en) | 2006-11-16 | 2007-04-03 | Pipe joint, disengaging tool, and pipe joint device |
| JP097264/07 | 2007-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101182898A true CN101182898A (en) | 2008-05-21 |
| CN101182898B CN101182898B (en) | 2010-09-08 |
Family
ID=39448271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101291184A Expired - Fee Related CN101182898B (en) | 2006-11-16 | 2007-07-11 | Pipe adaptor, coupling releasing appliance and pipe adaptor device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008144959A (en) |
| CN (1) | CN101182898B (en) |
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| CN108602166A (en) * | 2015-11-24 | 2018-09-28 | 马自达汽车株式会社 | Work holder |
| CN109899398A (en) * | 2019-03-22 | 2019-06-18 | 中国航发湖南动力机械研究所 | The installation and removal method of bearing and bearing |
| CN110056578A (en) * | 2019-05-10 | 2019-07-26 | 中国航发湖南动力机械研究所 | Bearing compresses locking device |
| CN110621889A (en) * | 2017-05-15 | 2019-12-27 | 瓦林格创新股份有限公司 | Element and locking device for a composite product |
| CN110740814A (en) * | 2017-05-12 | 2020-01-31 | 赛默飞世尔科学有限公司 | Container holder and container rack |
| CN111998148A (en) * | 2020-08-11 | 2020-11-27 | 西安航天动力研究所 | Front-mounted clamp spring structure conduit connecting piece and connecting method |
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| CN102003372A (en) * | 2010-10-15 | 2011-04-06 | 张春生 | Novel defueling pump capable of being checked without lifting pipe column |
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| US5228728A (en) * | 1991-12-17 | 1993-07-20 | Huron Products Industries, Inc. | Tube retainer release sleeve |
| CN2610204Y (en) * | 2002-06-07 | 2004-04-07 | 隋明祥 | Protection sleeve for pipe joint of preventing water burglary and disassembling |
| CN2773630Y (en) * | 2004-10-14 | 2006-04-19 | 隋明祥 | Energy-saving watermeter for preventing detach, reverse and drop |
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2007
- 2007-04-03 JP JP2007097264A patent/JP2008144959A/en active Pending
- 2007-07-11 CN CN2007101291184A patent/CN101182898B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108602166A (en) * | 2015-11-24 | 2018-09-28 | 马自达汽车株式会社 | Work holder |
| CN110740814A (en) * | 2017-05-12 | 2020-01-31 | 赛默飞世尔科学有限公司 | Container holder and container rack |
| CN110621889A (en) * | 2017-05-15 | 2019-12-27 | 瓦林格创新股份有限公司 | Element and locking device for a composite product |
| CN109899398A (en) * | 2019-03-22 | 2019-06-18 | 中国航发湖南动力机械研究所 | The installation and removal method of bearing and bearing |
| CN110056578A (en) * | 2019-05-10 | 2019-07-26 | 中国航发湖南动力机械研究所 | Bearing compresses locking device |
| CN111998148A (en) * | 2020-08-11 | 2020-11-27 | 西安航天动力研究所 | Front-mounted clamp spring structure conduit connecting piece and connecting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101182898B (en) | 2010-09-08 |
| JP2008144959A (en) | 2008-06-26 |
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