CN106170655A - Pipe joint - Google Patents

Abstract

The present invention provides a kind of pipe joint, by preventing the clout position of resilient sleeve from being utilized secure component to fasten multiple segmentation retainer completely between the peripheral end portion of engaging-in multiple segmentation retainers.By utilize secure component (4) make multiple segmentation retainer (3) to radially adjacent to movement, resilient sleeve (2) necking deformation and produce clout position (2c).Even if along with resilient sleeve (2) afterwards necking deformation and clout position (2c) is intended to bloat between the peripheral end portion (3a) of circumferentially adjacent multiple segmentation retainers (3), also bloating of clout position (2c) can be suppressed by the spigot surface (5a) of stop component (5) from the outside of clout position (2c) radially abutting so that clout position (2c) does not enter between the peripheral end portion (3a) of multiple segmentation retainer (3) the most directed.

Description

Pipe joint

Technical field

The present invention relates to a kind of in order to by flexual for having of being formed by the such as soft material such as synthetic resin or rubber The pipe joint that the body pipe arrangements such as flexible hoses or sleeve pipe or the pipe that cannot deform connect and used.

Background technology

In the past, as this pipe joint just like bottom hose joint, i.e. possessed: can be inserted into the connector portions of flexible pipe；Can be embedded in The upper case of the semi-circular cylindrical of this connector portions and lower case；And the distortional elastomer ring for fastening hose, by inciting somebody to action The bolt hole of the end that bolt inserts upper case and lower case fastens upper case and lower case, distortional elastomer ring Deform and clamp-on the periphery of flexible pipe equably thus prevent from leaking (for example, referring to patent documentation 1).

Be described in detail, then when utilizing bolt to start to fasten upper case and lower case, upper case and bottom Shell separate configuration diametrically.It is configured to, by the fastening of bolt, upper case and lower case to clamp distortional elastomer The mode of ring gradually to radially adjacent to movement, along with these upper cases and the close of lower case are moved, makes distortional elastomer Ring necking deformation.

Patent documentation 1: Japanese Unexamined Patent Publication 2009-85275 publication

Summary of the invention

The problem that invention is to be solved

But, if making upper case and close movement of lower case make distortional elastomer ring force by fastening bolt Necking deformation, then produce the clout position being equivalent to necking deformation part on the optional position of the circumference of distortional elastomer ring.Should Clout position along with distortional elastomer ring necking deformation and gradually to axially or radially becoming big.

But, in this existing pipe joint, due to till utilizing bolt to start to be fastened to close to an end upper case and The end of lower case is separated from each other opening, the clout position therefore produced with the necking deformation of distortional elastomer ring with towards The mode that opening between upper case and the end of lower case bloats enter thus cause engaging-in between the two.

The clout position of the most engaging-in distortional elastomer ring, also cannot make upper case and bottom even with bolt fastening Shell is further towards movement.Therefore, it is impossible to utilize bolt that upper case and lower case are fastened (tightening completely) completely extremely Set in advance near end position.In the case of Gai, there are the following problems: distortional elastomer ring relative to flexible pipe fastening especially Becoming to relax at clout position and cause overall uneven, the anticreep intensity of flexible pipe declines and easily produces the leakage thing of fluid Therefore.

And, if thickening distortional elastomer ring to improve the fastening force of flexible pipe, then strong along with distortional elastomer ring The necking deformation of system, the volume at the clout position bloating deformation towards the opening between upper case and the end of lower case becomes Greatly.The engaging-in amount that accordingly, there are clout position also increases, the problem that the anticreep intensity of flexible pipe reduces further.

The present invention is to tackle this problem as problem, it is intended that engaging-in by the clout position that prevents resilient sleeve Secure component is utilized to fasten multiple segmentation retainers etc. completely between the peripheral end portion of multiple segmentation retainers.

For solving the scheme of problem

In order to realize this purpose, it is a feature of the present invention that and possess: connector portions, the insertion space along body is set Put；Resilient sleeve, to surround the periphery in the described insertion space of the described body of the outer peripheral face formation along described connector portions Mode is set and can be to radial deformation；Multiple segmentation retainers, the outside being provided in described resilient sleeve is circumferentially covered Cover described resilient sleeve outer surface and can be to radial separation；Secure component, is provided on the plurality of segmentation retainer And make the plurality of segmentation retainer each other to radially adjacent to mobile so that described resilient sleeve necking deformation；And stop component, It is provided in medial surface and described resilient sleeve described of the peripheral end portion of circumferentially adjacent the plurality of segmentation retainer Outer surface is at diametrically contraposition, and described stop component has spigot surface, this spigot surface with along with the institute caused by described secure component The clout position of the described resilient sleeve of necking deformation near movement stating multiple segmentation retainer is radially abutting.

The effect of invention

There is the present invention of described feature by utilizing secure component to make multiple segmentation retainer to radially adjacent to movement, bullet Property sleeve necking deformation and produce clout position.Even if along with resilient sleeve afterwards necking deformation and clout position is intended to edge Bloat between the peripheral end portion of circumferentially-adjacent multiple segmentation retainers, it is possible to by the spigot surface of stop component from clout position Outside suppresses bloating of clout position radially abutting so that clout position do not enter multiple segmentation retainer peripheral end portion it Between and the most directed.

Therefore, it is possible to prevent from utilizing tightly between the peripheral end portion of the engaging-in multiple segmentation retainers in clout position of resilient sleeve Gu parts fasten multiple segmentation retainer completely.

Its result, with the end of upper case and lower case till utilizing bolt to start to be fastened to close to an end each other The engaging-in existing pipe joint at the clout position separately causing the necking deformation along with distortional elastomer ring and produce is compared, energy Enough make resilient sleeve overall relative to the fastening of body uniformly without relaxing at clout position, and improve the anticreep intensity of body And the leakage accident of fluid can be reliably prevented, therefore excellent in safety.

And, no matter the wall thickness of resilient sleeve, all it is prevented from the week of the engaging-in multiple segmentation retainers in clout position Between end, therefore, it is possible to utilize the resilient sleeve of wall thickness more tightly to fasten body.Thus, the anticreep improving body further is strong Spend and the leakage accident of fluid can be prevented stably in a long term.

Accompanying drawing explanation

Fig. 1 is to represent the integrally-built explanatory diagram of the pipe joint involved by embodiments of the present invention, and Fig. 1 (a) is fastening Side view before, Fig. 1 (b) is along the vertical section front view of Fig. 1 (a) (1B)-(1B) line.

Fig. 2 is the explanatory diagram representing the state after this fastening, and Fig. 2 (a) is side view, and Fig. 2 (b) is along Fig. 2 (a) (2B)-(2B) the vertical section front view of line.

Fig. 3 is the solid representing the method for attachment utilizing the pipe joint involved by embodiments of the present invention to be connected with body Figure, Fig. 3 (a) is the exploded perspective view before connecting, and Fig. 3 (b) is the stereoscopic figure of assembling beginning state, and Fig. 3 (c) is fastening Stereoscopic figure before, Fig. 3 (d) is the stereoscopic figure after fastening.

Fig. 4 is the explanatory diagram of the variation representing adapter body, and Fig. 4 (a) is the exploded perspective view before connecting, Fig. 4 (b) The stereoscopic figure of assembling beginning state, Fig. 4 (c) be fastening before stereoscopic figure, Fig. 4 (d) fastening after outside See axonometric chart.

Fig. 5 is the explanatory diagram of the variation representing resilient sleeve, and Fig. 5 (a) is the exploded perspective view before connecting, Fig. 5 (b) The stereoscopic figure of assembling beginning state, Fig. 5 (c) be fastening before stereoscopic figure, Fig. 5 (d) fastening after outside See axonometric chart.

Description of reference numerals

A-pipe joint, 1-connector portions, 1a-outer peripheral face, 2-resilient sleeve, 2b-outer surface, 2c-clout position, 3-splits guarantor Hold frame, 3a-peripheral end portion, 3b-medial surface, 3b1-sloped recess, 3c-end face, 3f-through hole, 3g-screwed hole, 4-secure component, 4a-head, 4b-axle portion, 4c-threaded portion, 5-stop component, 51-distance piece, 5a-spigot surface, 5b-detent mechanism, 5b1-dashes forward Sheet, 5c-through-Penetration portion, 5c1-elongated hole,

5d-slide connecting part, B-body, the insertion space of S-body.

Detailed description of the invention

Hereinafter, with reference to the accompanying drawings embodiments of the present invention are described in detail.

As shown in Fig. 1～Fig. 5, the pipe joint A involved by embodiments of the present invention is such as lower contact: for joint master The connection end Ba of body B, multiple points of the outer side covers at resilient sleeve 2 is inserted between connector portions 1 and the resilient sleeve 2 of body 10 Cut retainer 3, utilize secure component 4 make multiple segmentation retainer 3 each other to radially movement close to each other to connect to cylindrical shape.

Utilizing secure component 4 to make multiple segmentation retainer 3 near mobile, thus resilient sleeve 2 carries out necking deformation, so that The outer surface B1 of the connection end Ba of the inner face 2a and body B of resilient sleeve 2 is close to substantially uniformly throughout complete cycle.Further, The inner surface B2 of body B is close to the outer peripheral face 1a of connector portions 1 and dismantles and carry out pipe arrangement connection freely.Thus, even The heavy caliber body B that diameter dimension is bigger also is able to be attached simply, and can easily assemble decomposition cleaning.

It is described in detail, then as main constitutive requirements in the pipe joint A involved by embodiments of the present invention Possessing: connector portions 1, the insertion space S along body B is set；Resilient sleeve 2, to surround the outer peripheral face 1a along connector portions 1 The mode of the periphery of the insertion space S of the body B formed is set；Multiple segmentation retainers 3, are configured to circumferentially cover bullet The outer surface 2b of property sleeve 2 and can be to radial separation；Secure component 4, is spanned between multiple segmentation retainer 3 and arranges and make Multiple segmentation retainers 3 are each other to radially movement close to each other；And stop component 5, it is arranged on circumferentially adjacent multiple points Cut the medial surface 3b of peripheral end portion 3a of retainer 3.

It addition, as shown in Fig. 1～Fig. 5, direction of insertion N relative to the body B inserting space S is referred to as " following, manage and insert Enter direction N ", the rightabout U inserting a tube into direction N is referred to as " following, pipe come off direction U ".

Adapter body 10 is such as by being difficult to the rigid materials such as metal or hard resin such as the rustless steel or the pyrite that get rusty Be formed as the substantially cylindrical shape that wall thickness is thicker, or formed by punch process or other processing and forming.Adapter body 10 has Have: cylindric connector portions 1；For the company being connected with the tube connection ports (not shown) of other bodys (not shown) or other equipment Meet portion 11.

Connector portions 1 is formed at the front of adapter body 10, and connecting portion 11 is formed at the base end side of adapter body 10.

The external diameter of connector portions 1 is formed, roughly the same or slightly larger or slightly smaller with the internal diameter of aftermentioned body B.

The preferably outer peripheral face 1a of connector portions 1 assigned position axially has and prevents pipe from coming off by jog 1b and anti-avulsion Mechanism 1c, described in prevent pipe come off with jog 1b across the insertion space S of body B with the inner face 2a of aftermentioned resilient sleeve 2 Configuring at diametrically contraposition, described anti-avulsion mechanism 1c is used for that aftermentioned segmentation retainer 3 is carried out position limitation in case it is axially moving Dynamic.

As the concrete example of connector portions 1, as shown in Fig. 3 (a)～(d), use jog 1b as preventing pipe from coming off, the most outside The leading section of the side face 1a end of direction U (pipe come off) is concavo-convex is formed with in the axial direction the alternately multiple annular recessed portion of continuous print and ring Shape protuberance.As the anti-avulsion mechanism 1c of segmentation retainer 3, in base end side (inner side of pipe direction of insertion N) and the company of outer peripheral face 1a Connect to highlight between portion 11 and be formed with the most ring-type continuous print fastener 1c1.

Further, as other examples although not shown, but can change as follows: at the substantially complete cycle of the outer peripheral face 1a of connector portions 1 Upper conduct prevents pipe from coming off and uses jog 1b, is formed as being replaced continuous print bamboo sprout by annular recessed portion and annular convex in the axial direction Shape, or arrange to the annular seal radially crimped with the inner surface B2 of body B at the outer peripheral face 1a of connector portions 1.And, also Can change as follows: as the anti-avulsion mechanism 1c the most divided fastener 1c1 of prominent formation of segmentation retainer 3, or shape Become continuously in a circumferential or divided concave fastener 1c1.

Resilient sleeve 2 is such as formed as by the material of the excellent heat resistance such as rubber or soft synthetic resin and elastically deformable At least can substantially cylindric to elastomeric radial, and be assembled in the outside of outer peripheral face 1a of connector portions 1 across body B Insertion space S and at diametrically contraposition.Resilient sleeve 2 have when carrying out this assembling with the outer peripheral face 1a being installed on connector portions 1 The outer surface B1 of the connections end Ba of the body B in outside diametrically contraposition the inner face 2a that abuts and with aftermentioned multiple segmentation guarantors Hold the medial surface 3b outer surface 2b at diametrically contraposition of frame 3.

The inner face 2a of resilient sleeve 2 be set to its expanding time internal diameter roughly the same with the external diameter of aftermentioned body B or ratio It is slightly larger, and the external diameter that internal diameter when being set to undergauge is than body B is little.

Further, external diameter the leaning on than aftermentioned multiple segmentation retainer 3 when the outer surface 2b of resilient sleeve 2 is set to expanding Internal diameter during nearly mobile end is big.That is, it is set to, cannot be further at the close mobile end of multiple segmentation retainers 3 When mobile, the internal diameter than the medial surface 3b of multiple segmentation retainers 3 is big.

Also, it is preferred that as follows constitute: on resilient sleeve 2 the most circumferentially by each predetermined distance formed multiple for The otch 2c of its elastic deformation the most swimmingly, thus produce when expanding deformation and during necking deformation sufficient difference in internal diameters and External diameter is poor.

Segmentation retainer 3 is formed to make such as by being difficult to metal or the hard resins such as the rustless steel or the pyrite that get rusty The cylinder formed Deng rigid material is circumferentially divided into multiple shapes.

These multiple segmentation retainers 3 are as shown in Fig. 3 (a), Fig. 3 (b), to surround the outer surface of resilient sleeve 2 from outside The mode of 2b is assembled.Have and distinguish the most circumferentially adjacent multiple peripheral end portion 3a in this assembled state and distinguish the most diametrically The multiple medial surface 3bs opposed with the outer surface 2b of resilient sleeve 2.

Peripheral end portion 3a of multiple segmentation retainers 3 with for each segmentation retainer 3 at least a pair each the most outside to footpath The mode that side highlights is formed, and has the most opposed end face 3c.

And, peripheral end portion 3a at circumferentially adjacent multiple segmentation retainers 3 is provided with aftermentioned secure component 4.Such as Fig. 3 Be configured to shown in (c), by the operation of secure component 4, multiple segmentation retainers 3 each other to radially movement close to each other, with Make sleeve 2 necking deformation.The medial surface 3b of multiple segmentation retainers 3 is at the multiple segmentation retainers 3 caused by secure component 4 When mobile end, the medial surface 3b of multiple segmentation retainers 3 is shaped generally as into the arc surface of positive round continuously.The most each The medial surface 3b of individual segmentation retainer 3 is provided with for making resilient sleeve 2 in stage portion 3d of axially location.

And, it is formed with fastener in any one in multiple segmentation retainers 3 or on all segmentation retainers 3 3e, this fastener 3e anti-avulsion mechanism 1c with connector portions 1 in the way of can not moving axially engages.

As shown in Fig. 1～Fig. 5, as the concrete example of multiple segmentation retainers 3, use cylinder circumferentially two segmentations Be formed as the first segmentation retainer 31 and the second segmentation retainer 32 of the semi-circular cylindrical of symmetric shape.First segmentation retainer 31 With the second segmentation retainer 32, each there is a pair peripheral end portion 3a.

The base end part (medial end of pipe direction of insertion N) of the first segmentation retainer 31 and the second segmentation retainer 32 is upper to be made It is formed with the grab that the fastener 1c1 with connector portions 1 engages in the axial direction for fastener 3e is prominent respectively.

It addition, as other examples although not shown, but can change as follows: by cylinder circumferentially three segmentations or four segmentations or Be divided into more than four parts, and utilize aftermentioned secure component 4 make each to multiple radially adjacent to movement, or keep in the first segmentation Any one party in the base end part of frame 31 and the second segmentation retainer 32 forms fastener 3e.

As secure component 4, the threaded components such as bolt being preferably used, described threaded components has: head 4a, has and pulls The tool engagement position 4a1 that the instruments (not shown) such as pincers or spanner engage；Axle portion 4b, continuous with head 4a；And threaded portion 4c, shape Become the front end of axle portion 4b.In illustrated example, tool engagement position 4a1 is the engaging recessed parts such as hexagon ring.

When using threaded components as secure component 4, it runs through and is opened in circumferentially adjacent multiple segmentation retainers 3 Peripheral end portion 3a in the through hole 3f of any one party and be opened in the screwed hole 3g of the opposing party.Wrench is made under this runs through state Or the tool engagement such as spanner carries out rotation process in the tool engagement position 4a1 of threaded components.

Thus, a pair first segmentation retainers 31 and the second segmentation retainer 32 make sleeve to radially movement close to each other 2 necking deformations.And, it is possible to the instrument utilizing wrench or spanner etc. the most small-sized fastens, even therefore connecting big mouth The heavy caliber pipe joint A of the body B in footpath also is able to be attached and can easily assemble decomposition simply and cleans, therefore suitableeer Preferably.

It addition, as other examples although not shown, but also can change as follows: as secure component 4, tool engagement can be used The outer surface of the head 4a of position 4a1 is formed as polygonal bolts such as hexagonal, or uses the fastening assembly beyond threaded components.

Stop component 5 is following assembly: such as excellent by polyacetal resin or the sliding on the surface beyond it and thermostability That the materials such as different synthetic resin are formed, for the assembly suppressing the locality of resilient sleeve 2 to bloat deformation.Such as Fig. 1～Fig. 5 institute Showing, stop component 5 is each configured with multiple between peripheral end portion 3a of circumferentially adjacent multiple segmentation retainers 3.Retainer Part 5 has spigot surface 5a, this spigot surface 5a with along with the multiple segmentation retainers 3 caused by secure component 4 near mobile The clout position 2c of the resilient sleeve 2 of necking deformation at diametrically contraposition and abuts.

Spigot surface 5a is with continuous with medial surface (arc surface) 3b of multiple segmentation retainers 3 in the inner side of stop component 5 The face that formed of mode.It is formed as shown in Fig. 1 (a), Fig. 1 (b) and Fig. 3 (c), utilizes secure component 4 to start fastening The interval width of the end face 3c of peripheral end portion 3a that the width ratio of Shi Suoshu spigot surface 5a is circumferentially adjacent.That is, it is set at Fig. 1 (a), Fig. 1 (b) and shown in Fig. 3 (c) when utilizing secure component 4 to start to fasten, the circumferential two ends of spigot surface 5a with multiple points Gap is not had between the circumferential ora terminalis of medial surface (arc surface) 3b cutting retainer 3.

As the concrete example of stop component 5, as shown in Fig. 1～Fig. 5, it is preferably used and is provided in multiple segmentation retainer The medial surface 3b of peripheral end portion 3a of 3 (the first segmentation retainer 31, second splits retainer 32) at least cannot be circumferentially moved Distance piece 51.The spigot surface 5a of arc-shaped is preferably formed in the inner side of distance piece 51.

Have preferably by part 51: distance piece 51 is relative to the detent mechanism 5b of multiple segmentation retainers 3；And for fastening part Through-Penetration portion 5c that part (threaded components) 4 runs through.

As through-Penetration portion 5c, can use the through hole as shown in Fig. 1～Fig. 5 or beyond it such as the breach etc. of " U-shaped ".

On the other hand, preferably body B is soft by the soft synthetic resins such as such as vinyl chloride or silica gel or other rubber etc. Material by can in the way of elastic deformation molding there is flexual such as flexible pipe or sleeve pipe etc..And preferably at least at body The connection end Ba upper inner surface B1 and outer surface B2 of B is smooth.

As the concrete example of body B, use the flexible pipe of single layer structure in the example in the figures.

It addition, as other examples although not shown, but the body etc. of multiple structure can be used to replace monolayer as body B The body of structure.As the concrete example of multiple body B, can enumerate between transparent or opaque outer layer and internal layer as middle Layer has many or single synthetic resin blade (reinforcement silk thread) is spirally buried underground stacking flexible pipe (blade flexible pipe), conduct Synthetic resin system or banding armature that metal section is rectangle etc. and section are that circular etc. wire is strengthened by intermediate layer Material is wound into helical form and the spiral reinforced hose (Vohran flexible pipe) of integration, by metal wire rod or hard resin system The spiral reinforced hose etc. that wire rod is spirally buried underground.

According to the pipe joint A involved by this embodiments of the present invention, first, as shown in Fig. 3 (a), Fig. 3 (b), will pipe The connection end Ba of body B is inserted into resilient sleeve 2, and the outer peripheral face 1a along connector portions 11 inserts to pipe direction of insertion N afterwards.? Outside it, (the first segmentation keeps to assemble multiple segmentation retainer 3 in the way of circumferentially covering the outer surface 2b of resilient sleeve 2 Frame 31, second splits retainer 32) and stop component 5.

Then, as shown in Fig. 1 (a), Fig. 1 (b) and Fig. 3 (c), secure component (threaded components) 4 is utilized to make multiple segmentation protect Hold frame 3 to radially movement close to each other, thus resilient sleeve 2 necking deformation and produce clout position 2c.

This clout position 2c is radially oriented along with the necking deformation of resilient sleeve 2 afterwards or axially becomes larger, nothing The clout position 2c that method is advanced again is intended to bloat between peripheral end portion 3a of circumferentially adjacent multiple segmentation retainers 3.But it is logical The spigot surface 5a crossing stop component 5 is radially abutting from the outside of the clout position 2c of resilient sleeve 2, thus suppression clout position 2c bloats so that clout position 2c does not enter between peripheral end portion 3a of multiple segmentation retainer 3 and the most directed.

Thus, as shown in Fig. 2 (a), Fig. 2 (b) and Fig. 3 (d), prevent engaging-in multiple points of the clout position 2c of resilient sleeve 2 Cut and secure component 4 can be utilized to fasten (tightening completely) multiple segmentation retainer 3 completely between peripheral end portion 3a of retainer 3.

Therefore, it is possible to make the resilient sleeve 2 fastening relative to body B overall uniformly without becoming pine at clout position 2c Slow, it is possible to increase the pipe direction U upper tube body B that comes off is reliably prevented relative to the anticreep intensity of the connector portions 1 of adapter body 10 The leakage accident of fluid, therefore excellent in safety.

And, no matter the wall thickness of resilient sleeve 2, all it is prevented from the engaging-in multiple segmentation retainers 3 of clout position 2c Peripheral end portion 3a between, therefore, it is possible to utilize the resilient sleeve 2 of wall thickness more tightly to be fastened by body B.Thus, pipe is improved further The anticreep intensity of body B is it is thus possible to prevent the leakage accident of fluid stably in a long term.

Especially, the medial surface 3b that preferably stop component 5 is configured in peripheral end portion 3a of multiple segmentation retainers 3 cannot Circumferentially moved distance piece 51, and there is the spigot surface 5a of arc-shaped in the inner side of distance piece 51.

In the case of Gai, though the resilient sleeve along with the close mobile of the multiple segmentation retainers 3 caused by secure component 4 2 necking deformations, and the clout position 2c of resilient sleeve 2 towards circumferentially adjacent multiple segmentation retainers 3 peripheral end portion 3a that Bloating deformation to radial outside between this, clout position 2c also can be in the arc-shaped with the distance piece 51 becoming stop component 5 Spigot surface 5a is against sliding the most swimmingly and directed.

Therefore, it is possible to make resilient sleeve 2 necking deformation the most equably.

Itself as a result, it is possible to make the inner face 2a of resilient sleeve 2 be close to equably throughout complete cycle at the outer surface B1 of body B and Seal, and can further improve sealing.

Embodiment 1

Then, with reference to the accompanying drawings various embodiments of the present invention are illustrated.

This embodiment 1 as shown in Fig. 2 (a), Fig. 2 (b) and Fig. 3 (d), as stop component 5 relative to multiple segmentation protect Holding the detent mechanism 5b of frame 3 (the first segmentation retainer 31, second splits retainer 32), stop component 5 has and circumferentially phase The tab 5b1 parallel for end face 3c of peripheral end portion 3a of adjacent multiple segmentation retainers 3.And, it is set as being caused by secure component 4 The close mobile end of multiple segmentation retainers 3 time, tab 5b1 mutually abuts with the end face 3c of peripheral end portion 3a.

Tab 5b1 is highlighted and is formed as, in the outside of stop component 5 (distance piece 51) and circumferentially adjacent peripheral end portion 3a Tabular parallel for end face 3c.

Also, it is preferred that stop component 5 has: be formed footpath as through-Penetration portion 5c of secure component (threaded components) 4 The elongated hole 5c1 that upwards length is grown partially；And it is sliding with what the medial surface 3b of peripheral end portion 3a of multiple segmentation retainers 3 circumferentially slipped Portion 5d.

Preferably slide connecting part 5d is circumferentially formed a pair across tab 5b1 in the outside of stop component 5 (distance piece 51), And be formed as each along with going and the most thinning taper of thickness towards circumference ora terminalis.

Additionally, it is preferred that the medial surface 3b of peripheral end portion 3a of multiple segmentation retainers 3 has along with towards sliding with slide connecting part 5d The circumferential ora terminalis connect goes and the most thinning taper sloped recess 3b1 of thickness.

According to the pipe joint A involved by this embodiments of the invention 1, protect in the multiple segmentations caused by secure component 4 When holding the close mobile end of frame 3, the end face 3c of peripheral end portion 3a mutually abuts with tab 5b1, cannot hence with secure component 4 Fasten further.

Therefore, no matter the how are you feeling today of operator, the fastening of the fastening utilizing secure component 4 to carry out all can be made to terminate State keeps certain state.

Its result, has the advantage that without managing Tightening moment based on secure component 4, no matter being operated by whom All can carry out uniform pipe arrangement connection.

And, in embodiment 1, as shown in FIG. 1 to 3, secure component 4 is threaded components, and it has: head 4a；Axle portion 4b, runs through the through hole 3f of any one party in peripheral end portion 3a being opened in circumferentially adjacent multiple segmentation retainers 3；And Threaded portion 4c, screws togather with the screwed hole 3g being opened in the opposing party.Axle portion 4b is formed its diameter than head 4a or threaded portion The external diameter of 4c is little.It is formed, compares the minimum diameter of the through hole 3f that axle portion 4b extends upward through at the axle of threaded components, threaded portion The maximum outside diameter of 4c is bigger.

In example shown in Fig. 1～Fig. 3, peripheral end portion 3a at the first segmentation retainer 31 has been drilled through through hole 3f respectively, Respectively screwed hole 3g is run through in the second peripheral end portion 3a splitting retainer 32 and drill through or screwed hole 3g is offered in a concave shape.

That is, through hole 3f and screwed hole 3g engraves the threaded portion 4c spiral shell being provided with for secure component (threaded components) 4 The female thread of the same inner diameter closed, by the external screw thread becoming threaded portion 4c is screwed into the female thread of through hole 3f, axle portion 4b runs through Through hole 3f.When this axle portion 4b runs through through hole 3f, head 4a or threaded portion 4c axially with through hole 3f against and prevent from coming off.

Therefore, have be prevented from secure component (threaded components) 4 from segmentation retainer 3 peripheral end portion 3a come off excellent Point.

Its result, even if processing in harsh industry also what such as the reply foreign body such as bakery and confectionery or pharmaceutical factory was mixed in product Can use, its excellent in safety.

Especially, when splitting retainer 3 and secure component (threaded components) 4 is to be made of metal, such as Fig. 1 (b) and Fig. 2 Shown in (b), by any one party (the first segmentation in peripheral end portion 3a being opened in circumferentially adjacent multiple segmentation retainers 3 Retainer 31) through hole 3f as countersunk.Preferably by the head 4a of this countersunk and secure component (threaded components) 4 it Between sandwich the packing ring 4d being made up of the synthetic resin of excellent in sliding property etc. and fasten.

In the case of so constituting, along with the fastening of secure component (threaded components) 4, (will not bury with through hole because of head 4a Head bore) frictional heat of 3f and produce adhesive wear (scuffing), and metal dust will not be produced because both frictions.

Its result, even if processing in harsh industry also what such as the reply foreign body such as bakery and confectionery or pharmaceutical factory was mixed in product Can use, its excellent in safety.

Additionally, it is preferred that at secure component (threaded components) 4 and through hole 3f or the contact portion of screwed hole 3g, threaded components Axle portion 4b is coated with the contact portion of through-Penetration portion 5c (elongated hole 5c1) of the detent mechanism 5b (tab 5b1) of stop component 5 or fills Lubricant.

By packing ring 4d and the lubricant of excellent in sliding property, it is possible to reduce based on secure component (threaded components) 4 further Tightening moment.

Also, it is preferred that stop component 5 has: be formed radially length as through-Penetration portion 5c of secure component 4 inclined Long elongated hole 5c1；And the slide connecting part 5d circumferentially slipped with the medial surface 3b of peripheral end portion 3a of multiple segmentation retainers 3, and The medial surface 3b of peripheral end portion 3a of multiple segmentation retainers 3 has along with going and thick towards the circumferential ora terminalis sliding with slide connecting part 5d Spend the most thinning sloped recess 3b1.

In the case of Gai, close along with the multiple segmentation retainers 3 caused by secure component 4 be moved, taper sloped recess 3b1 slides along the slide connecting part 5d of stop component 5.Thus, stop component 5 relative to secure component 4 along elongated hole 5c1 to radially Inner side is moved swimmingly.

Therefore, it is possible to reduce Tightening moment based on secure component 4.

Its result, has the advantage that operability is excellent, even the operator that such as strength is not enough as women It also is able to utilize secure component 4 to fasten (tightening completely) segmentation retainer 3 completely.

When assembling stop component 5, elongated hole 5c1 is run through by the axle portion 4b and threaded portion 4c of secure component (threaded components) 4.Will The internal diameter of the short side direction of elongated hole 5c1 is set to, and after assembling stop component 5, the internal diameter of the short side direction of elongated hole 5c1 compares fastening part Little and than axle portion 4b the external diameter of maximum outside diameter of the head 4a or threaded portion 4c of part (threaded components) 4 is big.

That is, stop component 5 entirety is formed by the material of elastically deformable, and be formed as making the short side direction of elongated hole 5c1 The internal diameter external diameter than threaded portion 4c is slightly smaller, to make elongated hole 5c1 to its short side direction dilatation when running through threaded portion 4c.Diagram In example, elongated hole 5c1 is formed to have linked the slightly smaller big circular position of the diameter external diameter than threaded portion 4c and diameter and axle portion 4b " 8-shaped " at the roughly the same small circular position of external diameter.

It addition, as other examples, it is also possible to be set to engrave in the local of elongated hole 5c1 and be provided for and secure component (spiral shell Stricture of vagina assembly) 4 the female thread that threaded portion 4c screws togather and internal diameter is identical thus assemble stop component 5 time can be by secure component The structure that the threaded portion 4c of (threaded components) 4 runs through, or be changed to ellipse etc. other shapes replace having linked big circle Position and " 8-shaped " at small circular position.

Thus, after assembling stop component 5, the elongated hole 5c1 of stop component 5 blocks secure component (threaded components) 4 Threaded portion 4c and prevent from coming off.

Therefore, there is the advantage that comes off of peripheral end portion 3a being prevented from stop component 5 from segmentation retainer 3.

Its result, even if processing in harsh industry also what such as the reply foreign body such as bakery and confectionery or pharmaceutical factory was mixed in product Can use, its excellent in safety.

And, the multiple segmentation retainers 3 caused by secure component 4 when mobile or near mobile end it After, even if the External Force Acting such as vibration or impact is in segmentation retainer 3 or secure component 4 etc., also because secure component 4 is without only making Dynamic component 5 is axially producing position skew.

Therefore, it is possible to make stop component 5 in axially location with simple structure.

It is as a result, it is possible to prevent stop component 5 from making the clout position 2c of resilient sleeve 2 in the skew of the most unexpected position Bloat, its excellent in safety, and cost will not be increased and economy is the most excellent.

Additionally, in example shown in Fig. 1～Fig. 3, the base end side in adapter body 10 be formed with for other bodys Barrel assemblies 11a such as the pipe collar connected or lining are as connecting portion 11.

And, in example shown in Fig. 1～Fig. 3, use rubber sleeve 21 as resilient sleeve 2.Such as Fig. 3 (a)～(d) institute Showing, as otch 2c, the inner face 2a concavity the most at regular intervals at rubber sleeve 21 is formed multiple axially Concave groove 2c1 that upper linearity extends.

The surface of resilient sleeve 2 is provided with for representing between circumferentially adjacent multiple otch 2c (concavity ditch 2c1) Labelling 2e.In illustrated example, outer surface 2b and end face at resilient sleeve 2 have four labellings along the arranged circumferentially of resilient sleeve 2 2e。

Additionally, as other examples although not shown, but also can change as follows: as the variation of otch 2c, forming curves The concavity ditch 2c1 extended Deng non-linear shape, or the only configuration of any one party in the outer surface 2b or end face of resilient sleeve 2 mark Note 2e, or the labelling 2e of circumferentially configuration less than three or more than five.

And resilient sleeve 2 is especially as rubber sleeve 21 in the case of overall pliability excellence, when described elasticity If necking deformation fills up place, then by further necking deformation to otch 2c (concave groove 2c1) during sleeve necking deformation At the outer surface 2b of resilient sleeve 2, the clout position in the outside of otch 2c (concave groove 2c1) bloats deformation.

In order to prevent above-mentioned situation, preferably by the aligned in position of the labelling 2e of resilient sleeve 2 circumferentially adjacent multiple Between peripheral end portion 3a of segmentation retainer 3.Thus, though multiple segmentation retainer 3 because of secure component 4 to radially adjacent to shifting Dynamic, the clout position in the outside of otch 2c (concave groove 2c1) also will not bloat between peripheral end portion 3a of multiple segmentation retainers 3 Deformation.

The preferably outer surface 2b at resilient sleeve 2 (rubber sleeve 21) arranges low friction part 2d and keeps with segmentation to reduce The contact area (frictional resistance) of medial surface (arc surface) 3b of frame 3.Thus, along with the multiple segmentations caused by secure component 4 The close of retainer 3 is moved, resilient sleeve 2 (rubber sleeve 21) necking deformation swimmingly, and can reduce secure component (spiral shell Stricture of vagina assembly) 4 Tightening moment.

In example shown in Fig. 3 (a)～(d), the axially local of rubber sleeve 21 or whole axially on, rub as low Wiping portion 2d, is axially alternately being formed with ridge and groove with section zigzag.

It addition, as other examples although not shown, but as the variation of low friction part 2d, it is possible to by ridge and groove type Become the concaveconvex shape different from section zigzag, or also formed at medial surface (arc surface) 3b of each segmentation retainer 3 Low friction part, or only form low friction part to replace outside resilient sleeve 2 at medial surface (arc surface) 3b splitting retainer 3 The low friction part 2d of surface 2b.

Embodiment 2

This embodiment 2, as shown in Fig. 4 (a)～(d), represents the variation of adapter body 10, at the cardinal extremity of adapter body 10 Side is provided with nut portions 11b for being connected and threaded portion 11c with other bodys as connecting portion 11, this composition and Fig. 1～ Embodiment 1 shown in Fig. 3 is different, and composition in addition is identical with the embodiment 1 shown in Fig. 1～Fig. 3.

Example shown in Fig. 4 (a)～(d) is configured to, as threaded portion 11c, in the base end side periphery of adapter body 10 Face is engraved and is arranged external screw thread, and with the female thread of the inner peripheral surface being engraved the tube connection ports being arranged at other bodys or other equipment Screw togather.

It addition, as other examples although not shown, but may be configured as threaded portion 11c, at the cardinal extremity of adapter body 10 Side inner peripheral surface is engraved and is arranged female thread, and with engraved the outer peripheral face of the tube connection ports being arranged at other bodys or other equipment External thread spiro fastening.

Therefore, the pipe joint A involved by this embodiments of the invention 2 also be able to obtain identical with described embodiment 1 Action effect.

Embodiment 3

This embodiment 3, as shown in Fig. 5 (a)～(d), represents the variation of resilient sleeve 2, employs as resilient sleeve 2 Resin-made sleeve 22, this composition is different from the embodiment 1 and Fig. 4 (a) shown in Fig. 1～Fig. 3～the embodiment 2 shown in (d), removes Composition beyond this is identical with the embodiment 1 and Fig. 4 (a) shown in Fig. 1～Fig. 3～the embodiment 2 shown in (d).

In example shown in Fig. 5 (a)～(d), as otch 2c, at resin-made sleeve 22 the most at regular intervals Breach be formed multiple be staggered in the axial direction shape configuration and with linearity extend slit (groove) 2c2.

It addition, as other examples although not shown, but circumferentially can form multiple axial from resin-made sleeve 22 by breach Slit (groove) 2c2 that one end axially extends, or resin-made sleeve 22 whole axially on breach form a slit (groove), or form the slit (groove) extended with non-linear shapes such as curves.

Also, it is preferred that arrange high friction part 2f to increase the outer surface B2 with body B at the inner face 2a of resin-made sleeve 22 Frictional resistance.Thus, the anticreep intensity of body B is improved.

In example shown in Fig. 5 (a)～(d), resin-made sleeve 22 inner face 2a axially local or whole axially on, As high friction part 2f, it is formed with annular convex and annular recessed portion the most concavo-convex.

Therefore, the pipe joint A involved by this embodiments of the invention 3 also is able to obtain and described embodiment 1 and enforcement The action effect that example 2 is identical.

Additionally, in the illustrated example of above-described embodiment, employ circumferentially by the of two segmentations as multiple segmentation retainers 3 One segmentation retainer 31 and the second segmentation retainer 32, but it is not limited to this, it is possible to use circumferentially split or four points by three Cut or be divided into the segmentation retainer 3 of more than four.

Claims (6)

1. a pipe joint, it is characterised in that possess:

Connector portions, the insertion space along body is set；

Resilient sleeve, to surround the periphery in the described insertion space of the described body of the outer peripheral face formation along described connector portions Mode is set and can be to radial deformation；

Multiple segmentation retainers, the outside being provided in described resilient sleeve circumferentially covers the outer surface of described resilient sleeve And can be to radial separation；

Secure component, is spanned between the plurality of segmentation retainer and arranges and make the plurality of segmentation retainer each other to footpath To near mobile so that described resilient sleeve necking deformation；And

Stop component, is provided in the medial surface of the peripheral end portion of circumferentially adjacent the plurality of segmentation retainer and described bullet The described outer surface of property sleeve at diametrically contraposition,

Described stop component has spigot surface, and this spigot surface keeps with along with the plurality of segmentation caused by described secure component The clout position of the described resilient sleeve of necking deformation near movement of frame is radially abutting.

Pipe joint the most according to claim 1, it is characterised in that

The described medial surface that described stop component is configured in the described peripheral end portion of the plurality of segmentation retainer cannot edge The distance piece of circumference movement, and there is the described spigot surface of arc-shaped in the inner side of described distance piece.

Pipe joint the most according to claim 1 and 2, it is characterised in that

Described stop component is set as, as described stop component the detent mechanism relative to the plurality of segmentation retainer and There is the tab parallel with the end face of the described peripheral end portion of circumferentially adjacent the plurality of segmentation retainer, by described fastening part During the close mobile end of the plurality of segmentation retainer that part causes, described tab is mutual with the described end face of described peripheral end portion Abut.

Pipe joint the most according to claim 1 and 2, it is characterised in that

Described secure component has: head；Axle portion, runs through the institute being opened in circumferentially adjacent the plurality of segmentation retainer State the through hole of any one party in peripheral end portion；And threaded portion, screw togather with the screwed hole being opened in the opposing party, compare described logical The minimum diameter in hole, sets bigger by the maximum outside diameter of described head and described threaded portion.

Pipe joint the most according to claim 1 and 2, it is characterised in that

Described stop component has: be formed, as the through-Penetration portion of described secure component, the elongated hole that radially length is grown partially； And the slide connecting part circumferentially slipped with the described medial surface of the described peripheral end portion of the plurality of segmentation retainer, the plurality of point The described medial surface of the described peripheral end portion cutting retainer has along with going and thick towards the circumferential ora terminalis sliding with described slide connecting part Spend the most thinning sloped recess.

Pipe joint the most according to claim 5, it is characterised in that

The short side direction internal diameter of described elongated hole is set to, after assembling described stop component, the short side direction internal diameter of described elongated hole Less and bigger than the external diameter in described axle portion than the maximum outside diameter of the described threaded portion of described secure component.