CN1904451B

CN1904451B - Ring for visully determining crimped status of coupling for tubes and coupling equipped with the ring

Info

Publication number: CN1904451B
Application number: CN200510089351A
Authority: CN
Inventors: P·勒克林切
Original assignee: Comap SA
Current assignee: Comap SA
Priority date: 2005-07-29
Filing date: 2005-07-29
Publication date: 2010-05-05
Anticipated expiration: 2025-07-29
Also published as: CN1904451A

Abstract

The invention comprises an annular part capable of transfixing the ring in the coupling main body. Is also includes at least one sector section outside the annular part. Before extruding, the sector section is in a first position and while extruding the sector section is moved into a second position and can be kept transfixing through the holding units in the second position.

Description

The annulus of the squeezed state of indication pipe the joiner directly perceived and joiner of this annulus is installed

Technical field

The present invention relates to indicate intuitively the annulus of squeezed state, this annulus is applicable to the joiner of pipe.

Background technique

When the installation pipeline network, the assembly that plumber is set up specifically comprises: at the pipe and the joiner of several stages, pipe and joiner are combined together, make joiner clamp-on tube end then and have lasting mechanical integrity so that guarantee to install with its sealing.

Do not leak tightness lastingly for what guarantee to install, must all joiners of extruding.Once imagined various solutions and whether pushed so that make the user verify all joiners.

Specifically once considered till the joiner place causes leakage when joiner is extruded.Whether this quadrat method makes the operator utilize for device the identification of exerting pressure then to leak so that survey the joiner that is not extruded, or visually or by whether in device, observing subnormal pressure, the squeezed state of joiner in the check device so on the whole.These leakages may be because Sealing F-SP that can not seal before extruding causes, and this not only involves the manufacture cost of costliness, and may involve the location of Sealing in special-purpose groove for this purpose.These leak also may so make its O-shape that might adopt common not variable cross section circle because the shape of joiner causes.

Specifically, file DE 10118995 and WO 01/63160 describe two kinds and cause the device that produced the expection leakage like this before extruding.

Once imagined on each annular joiner event marker is set, as described at file WO 01/21997 or DE10002916.But, these rings are difficult to make its elimination with compression tool in extruding, thereby stay waste in device.

The object of the invention provides a kind of solution can intuitively indicate squeezed state reliably, and does not stay refuse in device, and uses well-known crush inhury.

Summary of the invention

For this purpose, the present invention relates to a kind of indication annulus of squeezed state of the joiner that is used for indicating intuitively pipe, comprise and allow that annulus keeps motionless annular portion on the joiner main body, in addition, comprise that extraly at least one is positioned at the fan-shaped section in the annular portion outside, fan-shaped section is in primary importance before extruding, wherein keep motionless with respect to annular portion by the primary importance holding device, and be suitable for when extruding, moving to the second place, wherein keep motionless with respect to annular portion by second place holding device.

So, in extruding, a fan-shaped section or a plurality of fan-shaped section move to the second place from primary importance, the user might be verified whether implement extruding, and these fan-shaped section are retained on the position, do not produce waste in the erecting bed.

Advantageously, the primary importance holding device comprises the bridge material that is formed between annular portion and the fan-shaped section.

According to an embodiment, second place holding device comprises that at least one is suitable for being contained in the lug in the mortise.

Advantageously, annulus comprises and is used to guide the guiding device of fan-shaped section from its primary importance to its second place

According to an embodiment, the guiding guiding device of fan-shaped section from its primary importance to its second place comprises all parts of annular portion, and all parts radially extend and cooperate with the wall portion of the fan-shaped section of radially extending

Advantageously, fan-shaped section has the shape that complements each other with annular portion, and annulus forms ring-shaped component after extruding.

According to an embodiment, the overall shape of all fan-shaped section is circular arc.

Advantageously, annulus comprises first color or surface finishment zone and second color or surface finishment zone, and second color or surface finishment zone are positioned at the zone that the user can see after can not being pushed by the user seeing before the extruding.

The present invention also relates to be equipped with the joiner of annulus described above.

Advantageously, joiner comprises the squeezing bushing with opening, and opening is sealed by at least one fan-shaped section of annulus when extruding at least in part.

Description of drawings

In any case, the present invention will according to the embodiment of an annulus of the present invention and joiner, and be expressly understood by means of following description and with reference to accompanying schematic figure and by nonrestrictive example.

Fig. 1 is for connecting the joiner stereogram of two pipes, and wherein joiner bears according to two annulus of the present invention, and first annulus is in the extruding front position and second annulus is in position, extruding back.

Fig. 2 is a joiner sectional drawing among Fig. 1, and crush inhury is arranged in and comprises on the end piece that is in the annulus of extrusion position not.

Fig. 3 is the front view according to annulus of the present invention before extruding.

Fig. 4 is that the annulus among Fig. 3 is pushing later view.

Fig. 5 is the rear view of annulus before extruding among Fig. 3.

Fig. 6 is the side view of annulus before extruding among Fig. 3.

Fig. 7 is the stereogram of annulus before extruding among Fig. 3.

Embodiment

Fig. 1 and 2 describes the joiner 2 that is used for pipe, it is connected on two end piece 5 first pipe 3 and second pipe 4, each end piece 5 comprise be formed on the joiner main body and with the short column 6 of each tube inner wall cooperation, this short column has makes profile of tooth 7 that pipe 3,4 remains in position effectively and the groove 8 that holds Sealing 9.

Each end piece 5 also comprises the squeezing bushing 10 that has than the pipe diameter larger diameter, pipe is fixed on the joiner main body by its end, and end diameter is dwindled so as with the joiner main body on outer grooves 12 cooperation and make squeezing bushing keep motionless with respect to joiner 2 main bodys, this sleeve pipe is perforated and has the cognate shape of band opening 13.

The pipe of describing in Fig. 1 and 23,4 is multilayer form, comprises metal intermediate layer 14 and dielectric layers, i.e. internal layer 15 and outer 16.

Joiner also be included on each end piece according to indication annulus 17 of the present invention.

Be used for indicating intuitively the indication annulus 17 of pipe joiner squeezed state to comprise annular portion 18, annulus is clamped on the position of joiner 2 main bodys, and each fan-shaped section 19 forms the overall shape of circular arc, each fan-shaped section is positioned at the outside of annular portion, and before extruding, be in primary importance, wherein make the position of its maintenance with respect to annular portion by the primary importance holding device that constitutes by the bridge material 20 that forms between annular portion 18 and the fan-shaped section 19, and plan moves to the second place in extruding, wherein make the position of its maintenance with respect to annular portion 18 by second place holding device, second place holding device is made of the lug 22 of planning to be contained in the mortise 23 in the present embodiment.

Annulus 17 comprise guiding device in case the guiding fan-shaped section from its primary importance to its second place, these devices by the

parts

24,25 of annular portion 18 constitute,

parts

24,25 more or less radially extend and cooperate with wall portion that fan-shaped section 19 is more or less radially extended.

Specifically, in the embodiment of Fig. 1 to 7, annular portion has the trapezoidal parts 24 that extend radially, respectively forms mortise 23 in them.These parts 24 are towards the hole 26 that is formed on fan-shaped section 19, the shape complementarity of its shape and parts 24, and the wall portion in hole comprises the lug of preparing to be contained in the mortise 23.

Bridge material 20 connects the end of the bottom in hole 26 to parts 24.

At opposite side with respect to the fan-shaped section 19 in hole 26, annular portion 18 comprises the parts 25 that are positioned in the face of the otch that is formed on the complementary shape on the fan-shaped section 19, each fan-shaped section 19 has two otch 28, and they radially are located at the opposite walls portion of fan-shaped section to two corners of the wall portion that comprises hole 16

Bridge material 20 connects the end of the bottom of otch 28 to parts 25.

In case bridge material 20 pressure owing to crush inhury in extruding breaks,, make fan-shaped section be directed into its second place from its primary importance owing to the existence of

parts

24,25 and by cooperating with the wall portion of otch 28 with hole 26 radial directed.

In the second place that adopts in when extruding, fan-shaped section is contained between

parts

24 and 25, and with form by parts 24 trapezoidal in incline section radially be close to, and be close to the barrel surface 29 that is positioned at

parts

24 and 25 roots.Fan-shaped section keeps the location by the lug 22 that is contained in the mortise 23.

Parts

24 and 25 make fan-shaped section remain on its second place, the cooperation between lug 22 and mortise 23.

After extruding, annulus 17 forms ring-shaped component, and the shape of annular portion and fan-shaped section complements each other

Annulus was easy to identification with later difference on geometrical shape before extruding, and made it might determine whether to have carried out extruding.

Annulus 17 is contained on the joiner 2 by the annular portion 18 that it is positioned at cylindrical part 30 places at short column 6 root places, comprises profile of tooth 7 between the axial end portion prevent surface 32 of short column and short column part, and cooperates with the end of pipe 3,4.

Annulus 17 is being contained in before the squeezing bushing 10 on the short column of joiner, can pass the annular portion 18 of annulus 17 by opening 33 comprising the end of the sleeve pipe of cognate shape opening, so that be fixed in the outer grooves 12 of joiner 2.

Be close in the location of prevent surface 32 by it, annular portion 18 is provided at the joiner main body at prevent surface 32 places and multilayer tubing interest extraly and belongs to electrical insulation between the core body, and the end of multilayer pipe radially is contained between short column and the squeezing bushing.

In the embodiment of Fig. 1 to 7, annulus 17 comprises four fan-shaped section 19, has apart from E between two fan-shaped section in succession before extruding, and these fan-shaped section contact with each other after extruding, and the distance that does not separate.

Advantageously, the distance between two fan-shaped section is towards the opening 13 that constitutes cognate in squeezing bushing 10

So, might see the material of pipe by opening before extruding, this opening is sealed by fan-shaped section when extruding then.Whether this measure makes it be easier to indicate intuitively extruding to carry out.

According to a kind of modification, annulus 17 comprises the zone of first color and second color or surface finishment, and second color or surface finishment zone are positioned at the zone that the user can see after can not being pushed by the user seeing before the extruding.Specifically, these zones can be positioned at and can not push the later hole 26 that see or the wall portion of otch 28.

These measures make it make visual indication with comparalive ease with second color of first colouring discrimination by selecting for use easily.

The position and the shape that are noted that the annulus that adopts make it allow that the crush inhury 34 with known type uses.

Need not speak more, the present invention is not limited to the preferred embodiment described above that proposes by non-limitative example; On the contrary, it will comprise that all fall into following claim scope embodiment's various modification.

Claims

1. one kind is used for indicating intuitively pipe (3, the indication annulus (17) of the squeezed state of joiner 4) (2), comprise and allow that annulus (17) keeps motionless annular portion (18) on the joiner main body, it is characterized by, comprise that extraly at least one is positioned at the fan-shaped section (19) in annular portion (18) outside, fan-shaped section (19) is in primary importance before extruding, wherein keep motionless with respect to annular portion (18) by the primary importance holding device, and be suitable for when extruding, moving to the second place, wherein by second place holding device (22,23) keep motionless with respect to annular portion (18).

2. according to the described indication annulus of claim 1, it is characterized by, the primary importance holding device comprises the bridge material that is formed between annular portion (18) and the fan-shaped section (19).

3. according to the described indication annulus of claim 2, it is characterized by, second place holding device comprises that at least one is suitable for being contained in the lug (22) in the mortise (23).

4. according to the described indication annulus of one of claim 1 to 3, it is characterized by, comprise being used to guide the guiding device of fan-shaped section from its primary importance to its second place.

5. according to the described indication annulus of claim 4, it is characterized by, the guiding guiding device of fan-shaped section from its primary importance to its second place comprises all parts (24,25) of annular portion (18), and all parts (24,25) radially extend and cooperate with the wall portion (26,28) of the fan-shaped section (19) of radially extending.

6. according to the described indication annulus of one of claim 1 to 3, it is characterized by, fan-shaped section (19) has the shape that complements each other with annular portion (18), and annulus (17) forms ring-shaped component after extruding.

7. according to the described indication annulus of one of claim 1 to 3, it is characterized by, the overall shape of described at least one fan-shaped section (19) is circular arc.

8. according to the described indication annulus of one of claim 1 to 3, it is characterized by, comprise first color or surface finishment zone and second color or surface finishment zone, second color or surface finishment zone are positioned at the zone that the user can see after can not being pushed by the user seeing before the extruding.

9. joiner (2) that is used to connect two tubes (3,4), this joiner (2) has two end piece (5), two tubes (3,4) is connected in respectively on these two end piece (5), is equipped with on each end piece according to the described indication annulus of one of claim 1 to 8.

10. according to the described joiner of claim 9 (2), it is characterized by, it comprises the have opening squeezing bushing (10) of (13), and opening is instructed at least one fan-shaped section (19) of annulus (17) at least in part and seals when extruding.