CN205402005U - Snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring - Google Patents

Snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring Download PDF

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Publication number
CN205402005U
CN205402005U CN201620158293.0U CN201620158293U CN205402005U CN 205402005 U CN205402005 U CN 205402005U CN 201620158293 U CN201620158293 U CN 201620158293U CN 205402005 U CN205402005 U CN 205402005U
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CN
China
Prior art keywords
snap ring
clamp nut
pipeline
ring
fittings
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Application number
CN201620158293.0U
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Chinese (zh)
Inventor
黄明辉
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ZHEJIANG TIANQING PIPE MANUFACTURE Co Ltd
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ZHEJIANG TIANQING PIPE MANUFACTURE Co Ltd
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Priority to CN201620158293.0U priority Critical patent/CN205402005U/en
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Publication of CN205402005U publication Critical patent/CN205402005U/en
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Abstract

The utility model relates to a metal pipe fittings's connection structure especially relates to a metal pipeline ring and presses locking connection structure. A snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring, the joint body that includes the pipeline and links to each other with the pipeline, the pipeline and connect and to be equipped with the snap ring between the body, the snap ring compress tightly at the pipeline and connect between the body through fastening nut, be equipped with the locking cover outside fastening nut, locking cover including location portion and sticking department, location portion cup joints on fastening nut, sticking department locking is on connecting the body. The utility model provides a simple structure, can effectively prevent the pipe connection at expend with heat and contract with cold, shake, draw etc. And loosen under the condition, connect stably, do not need often to overhaul snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring that sealing performance is good, the problem of the metal pipeline junction that exists among the prior art easily loosen, sealed not tight, the technique of seepage takes place for pipeline easily is solved.

Description

Metallic conduit helical ring pressure snap ring latch interlocked connecting mechanism
Technical field
This utility model relates to the attachment structure of a kind of metal tube, particularly relates to a kind of metallic conduit ring pressure anti-loosing connecting structure.
Background technology
It is quite extensive that pipeline is connected in the life that we are present to use, and the structure certainly connected for pipeline is also miscellaneous emerging in an endless stream.Connecting for pipeline, we are most concerned is exactly the firmness connected, if seepage can occur.In present pipe connecting structure, it is all much that employing is threaded, then seals fastening.Threaded benefit is that attachment structure is simple, facilitates mounting or dismounting and replacing, it is adaptable to most pipe connecting structure.
This attachment structure sealing surface part leakage can by again and tight screw thread repair seepage, increase the service life.But repair this seepage to need and the reparation space of tight screw thread, secretly bury connect and general dark apply connect, bright load connects does not possess this reparation space, it is necessary to reserving when installing and using and specifically repair space, mounting means is restricted;Being difficult to predict and inconsistent owing to this screw thread unclamps the seepage caused, it is necessary to irregularly also tight screw thread repairs all of connector again, inspection and maintenance is costly and difficult to control;This again and the repair mode of tight screw thread be not continuously effective and can constantly repeat, reaching certain number of times and be just difficult to after the time so simply and tight screw thread repair, it is necessary to change.This attachment structure is to adopt screw thread tight ring pressure snap ring pressing metal tube, the pressing of snap ring after connection is recessed into metal tube surface, dismounting can not be unclamped again, need to block sufficiently long metal tube and lay down this connection pipe fitting, install extra metal section and extra straight-through connection pipe fitting to reconnect pipeline, change complexity.
Existing open file has: Chinese patent: " a kind of pipe connecting structure (CN201242005Y) ", including connector, and the body connected with connector, body is located on connector by the nut being set in body peripheral, described connector at least has two ports receiving body, stretch into and the tube wall in connector port has an annular groove, C shape snap ring it is equipped with in annular groove, the C shape snap ring side protruded from outside annular groove offsets with a sealing ring, and sealing ring constitutes a sealing surface with the annular slope on connector inwall.This structure utilizes nut to fasten, although can realize connecting, but general expanding with heat and contract with cold, shake, the pipeline such as drawing uses and can cause that screw thread unclamps gradually in environment, just unclamped by the sealing surface of screw thread tight ring pressure snap ring pressing metal tube, no longer undertaking sealing effectiveness, the sealing surface position that pipeline internal medium just can pass through to unclamp leaks out.
Utility model content
This utility model provides a kind of simple in construction, can effectively prevent pipeline to be connected to and expand with heat and contract with cold, shake, unclamps when drawing, and stable connection, it is not necessary to often overhaul, snap ring latch interlocked connecting mechanism pressed by the metallic conduit helical ring of good seal performance;Solving the metallic conduit junction existed in prior art easily to unclamp, seal not tight, pipeline is susceptible to the technical problem of seepage.
Above-mentioned technical problem is that of the present utility model is solved by following technical proposals: a kind of metallic conduit helical ring pressure snap ring latch interlocked connecting mechanism, including pipeline and the fittings body that is connected with pipeline, it is provided with snap ring between described pipeline and fittings body, described snap ring is pressed between pipeline and fittings body by clamp nut, it is externally provided with locking set at clamp nut, described locking set includes location division and sticking department, and location division is socketed on clamp nut, and sticking department is locked on fittings body.The end of pipeline is inserted in fittings body, both matched in clearance, and clamp nut is socketed in outside fittings body and threadeds with fittings body.Then the gap connected at pipeline and fittings body is inserted into snap ring, in the gap that the tight lock part of snap ring is inserted into pipeline and fittings body connects and snap ring connect with clamp nut, now tighten clamp nut and the tight lock part of snap ring is compressed two stitching surfaces of formation, the two stitching surface is to be formed through pressing to seal so that it will not produce to reveal.Locking set it is further added by outside clamp nut, position relationship between locking clamp nut and fittings body, clamp nut is locked on fittings body simultaneously, prevent getting loose of clamp nut, axially get loose and radial rotary thus preventing snap ring to use in environment in general rising-heat contracting-cold, vibrations, drawing etc., it is ensured that sealing effectiveness.
As preferably, the location division of described locking set is identical with the shape of clamp nut, location division and clamp nut matched in clearance.Clamp nut is generally hexagon or polygon, makes the shape that locking is overlapped identical with clamp nut, it is possible to facilitate lock sleeve location and assembling.
As preferably, described sticking department includes the coupler body of a gib block and gib block end, offers at least one gathering sill on described fittings body, and gib block is plugged in one of them gathering sill, and coupler body is connected to the end face of fittings body.Fittings body can just be offered a gathering sill, allow sticking department gib block grafting within it, can also offering multiple gathering sill on fittings body, so locking is enclosed within and arbitrarily angled be socketed on clamp nut and can be plugged on easily in the gathering sill of fittings body external peripheral surface.Gathering sill is an open slot, after gib block is disposed within, is hooked the end face of fittings body by the coupler body of its tail end, thus utilizing locking set to be fixed by the relative position of clamp nut Yu fittings body.
As preferably, described clamp nut external peripheral surface is cascaded surface, and the front end of the location division of locking set is also cascaded surface, and the location division of locking set is connected on the cascaded surface of clamp nut.The location of one end of convenient locking set, the other end is fixed by coupler body, and simple in construction is easy to assembly.
As preferably, described fittings body includes lobe and the connecting portion of lobe both sides of centre, and connecting portion is provided with external screw thread and is connected with clamp nut, connecting portion internal diameter and outer diameter tube matched in clearance, the opening of connecting portion is provided with chamfering, and the shape of cross section of lobe is identical with the shape of clamp nut.Connecting portion is for connecting with clamp nut, and clamp nut is locked after can conveniently installing locking set by lobe, and the chamfering length of connecting portion port is advisable with 2.0mm~6.0mm, and angle is advisable with 15 °~45 °, facilitates the sealing and anti-leakage of snap ring.
As preferably, described snap ring includes tight lock part and connecting portion, described tight lock part is pressed between pipeline and fittings body by clamp nut, tight lock part includes two stitching surfaces, one of them stitching surface connects with pipeline, another one stitching surface connects with fittings body, described connecting portion includes at least one end face and an inner ring surface, wherein the end face of connecting portion connects with the end face of clamp nut, the inner ring surface of connecting portion connects with pipeline, and the external diameter of the connecting portion of snap ring is not more than the minimum diameter of locking set.Snap ring is divided into two parts, and tight lock part is than realizing in the relatively thin gap being easily inserted into pipeline and fittings body sealing, and the thicker convenience of connecting portion carries out with clamp nut that welding etc. is fixing to be connected, and thin-wall part is not easy to weld and easily get loose.Stitching surface prevents liquid from leaking, and the external diameter of connecting portion is concordant with the minimum outer diameter of clamp nut, being inserted in of convenient locking set.
As preferably, described tight lock part and connecting portion are one-body molded, and connecting portion and clamp nut are welded and fixed after compressing tight lock part by clamp nut.After tight lock part is pressed into by clamp nut, again connecting portion is welded with clamp nut, the axial friction utilizing snap ring strengthens the locking to clamp nut, prevent snap ring to use in environment in general rising-heat contracting-cold, vibrations, drawing etc. axially to get loose and radial rotary, also prevent the radial rotary of the clamp nut integrally welded with snap ring to unclamp, it is achieved the positive sealing of the stitching surface of snap ring and pipeline;Screw thread stressed joint are all implemented in its fittings body two ends with clamp nut, can not unclamp by radial rotary, it is achieved the positive sealing of the stitching surface of snap ring and fittings body.First compress tight lock part with clamp nut, then again connecting portion and clamp nut are fixed, namely first with clamp nut shackle, the frictional force of recycling snap ring locks clamp nut in turn, both condition each other locking of mutually promoting, realize sealing will not seepage, and will not get loose, stability in use is good.
As preferably, the end face of the connecting portion of snap ring is cascaded surface, and the end face of described clamp nut is also cascaded surface.Stair-stepping joint face, it is possible to convenient location between the two, connects more firm simultaneously, is axially not easy to get loose after welding, structure is more stable.
As preferably, the tight lock part of snap ring is annular, and the face that tight lock part connects with fittings body is arcwall face, the connecting portion of snap ring in the form of a ring, the external peripheral surface matched in clearance of the inner ring surface of connecting portion and pipeline.Arcwall face is inserted in the gap between fittings body and pipeline, on the basis utilizing clamp nut to compress, and fittings body of well fitting, form pressing rubbing surface, improve sealing effectiveness.
Therefore, metallic conduit helical ring of the present utility model pressure snap ring latch interlocked connecting mechanism possesses following advantage: utilize clamp nut to be pressed between pipeline and fittings body by snap ring, forms stitching surface and realizes sealing and anti-leakage;Connect locking set at clamp nut overcoat simultaneously, clamp nut is fixed on fittings body, thus improve the stability that pipeline connects, using in environment in general rising-heat contracting-cold, vibrations, drawing etc. and can prevent screw thread from unclamping, it is to avoid pipeline medium seepage.Be particularly suited for thin-wall stainless steel and copper pipe etc. and possess the metallic conduit of compressive characteristics, can be used for the bright load of such metallic conduit connect, secretly apply connect, secretly bury connection and pipeline rehabilitation connect engineering.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of metallic conduit helical ring of the present utility model pressure snap ring latch interlocked connecting mechanism.
Fig. 2 is the schematic diagram of fittings body of the present utility model.
Fig. 3 is the end view of fittings body of the present utility model.
Fig. 4 is the schematic diagram of snap ring of the present utility model.
Fig. 5 is the enlarged diagram at A place in Fig. 1.
Fig. 6 is the front view of the locking set in Fig. 1.
Fig. 7 is the left view of Fig. 6.
Detailed description of the invention
By the examples below, and in conjunction with accompanying drawing, the technical scheme of utility model is described in further detail.
Embodiment:
As it is shown in figure 1, the anti-loosing connecting structure of a kind of pipeline, including the stainless steel pipes 1 of a thin-walled, pipeline 1 is connected with fittings body 4.Fittings body 4 is sealed by snap ring 2 with pipeline 1 joint, and snap ring 2 is locked by clamp nut 3.Being socketed with a locking set 9 on clamp nut 3, locking set 9 is socketed on clamp nut 3, and is connected on fittings body 4 by coupler body 11.
As shown in Figures 2 and 3, fittings body 4 includes the lobe 6 of centre and the connecting portion 5 of lobe 6 both sides, connecting portion 5 is provided with external screw thread, fittings body 4 is threadeded with clamp nut 3, connecting portion 5 internal diameter coordinates with pipeline 1 crest clearance, and the opening of connecting portion 5 is provided with chamfering 14, and chamfering 14 length is advisable with 2.0mm~6.0mm, angle is advisable with 15 °~45 °, facilitates the sealing and anti-leakage of snap ring 2.The shape of cross section of lobe 6 is identical with the shape of clamp nut 3, is hexagon, offers a gathering sill 10 on one of them face of lobe.
As shown in Figures 6 and 7, locking set 9 includes integrated location division 13 and sticking department, the shape of location division 13 is all hexagon with clamp nut 3 phase, and the front end of location division 13 forms a cascaded surface 16, and what external peripheral surface at clamp nut was same forms corresponding cascaded surface 16.After locking set is inserted on clamp nut, by corresponding cascaded surface, locking set is positioned with clamp nut 3.The external diameter of the connecting portion 5 of snap ring is identical with clamp nut cascaded surface 16 medium-small diameter, and convenient locking set 9 is nested on clamp nut 3.Sticking department includes a gib block 12 and the coupler body 11 of gib block 12 end, the lobe of fittings body offers a gathering sill 10, gib block 12 is inserted in gathering sill 10, and then coupler body 11 is connected to fittings body 4 end face, is fixed on fittings body thus locking is overlapped 9.Owing to locking set 9 is socketed on clamp nut 3, thus the relative position by clamp nut 3 with fittings body 4 is determined, prevent clamp nut 3 from getting loose further, improve the stability and sealing that connect.
As shown in Figures 4 and 5, snap ring 2 includes integrated tight lock part 7 and connecting portion 8, and tight lock part 7 is annular, and the face that tight lock part connects with fittings body is arcwall face 15.Tight lock part 7 is pressed between pipeline 1 and fittings body 4 by clamp nut 3, and tight lock part 7 includes two stitching surfaces, and one of them stitching surface Q connects with pipeline, and another one stitching surface P connects with fittings body.The end face that connecting portion 8 is also annular, the end face of connecting portion 8 and clamp nut 3 is welded and fixed, stepped with the end face of clamp nut 3 connecting portion.The inner ring surface of connecting portion 8 connects with pipeline, the external peripheral surface matched in clearance of the inner ring surface of connecting portion 8 and pipeline.
During use, stainless steel pipes 1 is inserted in fittings body 4, then set connects snap ring 2, by clamp nut 3, snap ring 2 is pressed in the gap that pipeline 1 connects with fittings body 4, it is achieved seal and prevent seepage, after locking, again locking set is socketed on clamp nut, the gib block of locking set inserts in the gathering sill in the lobe of fittings body, then passes through coupler body and is connected in the lobe of fittings body, clamp nut and fittings body is fixed.The connecting portion of snap ring can weld with clamp nut, utilizes the axial friction locking clamp nut that stitching surface produces so that clamp nut will not get loose, thus snap ring is without getting loose, it is achieved dual fastening seal structure.The connecting portion that can certainly allow snap ring removably connects with clamp nut or does not adopt connector, as long as ensureing that snap ring compresses by clamp nut, this utility model has only to utilize locking to overlap just clamp nut locking can prevent seepage, improves sealing effectiveness.

Claims (9)

1. metallic conduit helical ring pressure snap ring latch interlocked connecting mechanism, including pipeline and the fittings body that is connected with pipeline, it is characterized in that: between described pipeline and fittings body, be provided with snap ring, described snap ring is pressed between pipeline and fittings body by clamp nut, it is externally provided with locking set at clamp nut, described locking set includes location division and sticking department, and location division is socketed on clamp nut, and sticking department is locked on fittings body.
2. metallic conduit helical ring according to claim 1 pressure snap ring latch interlocked connecting mechanism, it is characterised in that: the location division of described locking set is identical with the shape of clamp nut, location division and clamp nut matched in clearance.
3. metallic conduit helical ring according to claim 1 and 2 pressure snap ring latch interlocked connecting mechanism, it is characterized in that: described sticking department includes the coupler body of a gib block and gib block end, described fittings body offers at least one gathering sill, gib block is plugged in one of them gathering sill, and coupler body is connected to the end face of fittings body.
4. metallic conduit helical ring according to claim 1 and 2 pressure snap ring latch interlocked connecting mechanism, it is characterized in that: described clamp nut external peripheral surface is cascaded surface, the front end of the location division of locking set is also cascaded surface, and the location division of locking set is connected on the cascaded surface of clamp nut.
5. metallic conduit helical ring according to claim 1 and 2 pressure snap ring latch interlocked connecting mechanism, it is characterized in that: described fittings body includes the lobe of centre and the connecting portion of lobe both sides, connecting portion is provided with external screw thread and is connected with clamp nut, connecting portion internal diameter and outer diameter tube matched in clearance, the opening of connecting portion is provided with chamfering, and the shape of cross section of lobe is identical with the shape of clamp nut.
6. metallic conduit helical ring according to claim 1 pressure snap ring latch interlocked connecting mechanism, it is characterized in that: described snap ring includes tight lock part and connecting portion, described tight lock part is pressed between pipeline and fittings body by clamp nut, tight lock part includes two stitching surfaces, one of them stitching surface connects with pipeline, another one stitching surface connects with fittings body, described connecting portion includes at least one end face and an inner ring surface, wherein the end face of connecting portion connects with the end face of clamp nut, the inner ring surface of connecting portion connects with pipeline, the external diameter of the connecting portion of snap ring is not more than the minimum diameter of locking set.
7. metallic conduit helical ring according to claim 6 pressure snap ring latch interlocked connecting mechanism, it is characterised in that: described tight lock part and connecting portion are one-body molded, and connecting portion and clamp nut are welded and fixed after compressing tight lock part by clamp nut.
8. the metallic conduit helical ring pressure snap ring latch interlocked connecting mechanism according to claim 1 or 2 or 6 or 7, it is characterised in that: the end face of the connecting portion of snap ring is cascaded surface, and the end face of described clamp nut is also cascaded surface.
9. the metallic conduit helical ring pressure snap ring latch interlocked connecting mechanism according to claim 1 or 2 or 6 or 7, it is characterized in that: the tight lock part of snap ring is annular, the face that tight lock part connects with fittings body is arcwall face, the connecting portion of snap ring in the form of a ring, the external peripheral surface matched in clearance of the inner ring surface of connecting portion and pipeline.
CN201620158293.0U 2016-03-02 2016-03-02 Snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring Active CN205402005U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620158293.0U CN205402005U (en) 2016-03-02 2016-03-02 Snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620158293.0U CN205402005U (en) 2016-03-02 2016-03-02 Snap ring bolt interlocking connection structure is pressed to metal pipeline spiral ring

Publications (1)

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CN205402005U true CN205402005U (en) 2016-07-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108706296A (en) * 2018-05-24 2018-10-26 芜湖贝浩机械科技有限公司 A kind of industrial automation equipment is linked up with pulley

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108706296A (en) * 2018-05-24 2018-10-26 芜湖贝浩机械科技有限公司 A kind of industrial automation equipment is linked up with pulley

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