CN2395118Y - Pipe joint for metal pipe - Google Patents
Pipe joint for metal pipe Download PDFInfo
- Publication number
- CN2395118Y CN2395118Y CN 99243971 CN99243971U CN2395118Y CN 2395118 Y CN2395118 Y CN 2395118Y CN 99243971 CN99243971 CN 99243971 CN 99243971 U CN99243971 U CN 99243971U CN 2395118 Y CN2395118 Y CN 2395118Y
- Authority
- CN
- China
- Prior art keywords
- plane
- volution
- clasp
- pipe
- internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a pipe joint for metal pipes, which provides a pipe joint with the advantages of easy assembly, favorable use performance, and favorable sealing performance. The pipe joint for metal pipes comprises a joint main body provided with a joint pipe, a leakage preventing ring, an internal threaded ring, and a metal pipe, wherein, the inner surface of the joint pipe is provided with an internal thread, an internally contractive inclined plane, and a blocking edge; the end part of the leakage preventing ring is provided with an internally contractive inclined plane; the outer surface of the internal threaded ring is provided with an external thread, and a plurality of grooves are arranged on a ring lip at one end of the internal threaded ring; a pair of inclined planes engaged with the inclined planes of clamping teeth of a spanner is arranged on the grooves; the metal pipe penetrates through the internal threaded ring and the leakage preventing ring orderly and then is arranged in the joint pipe, and the inernal threaded ring utilizes the external thread thereof to be screwed on the internal thread of the inner surface of the joint pipe.
Description
The utility model belongs to pipe fitting, particularly a kind of metal pipe joint.
The metallic pipe coupling system of commonly using is provided with a grade edge by each through hole of joint body, and it can insert apical grafting for metal tube, does not have internal thread to spin for interior volution in the through hole.But interior volution apical grafting seal ring, make seal ring become radial expansion to be filled between external diameter of pipe and the joint body internal face, volution internal diameter top is provided with tilt internal wall in it is characterized in that, it is to phase down shape by bottom-up one-tenth internal diameter, and tiltedly inwall becomes the closely connected shape that contacts with C shape ring external diameter; C shape ring external diameter has skew wall, the oblique inwall complementation of skew wall and interior volution, and C shape ring internal diameter is provided with several projections.Yet, should in the surface of contact system and the direction that should interior volution be parallel to an axis of short slot and spanner one end latch of volution, therefore, when being locked in metal tube on the joint body with spanner, after the application of force spanner promptly can't with interior volution good engagement, in the time of especially especially firmly, be easy to generate between spanner and the volution and slide and can't interior volution be combined in the joint body with spanner, and then make metal tube fluid-tight engagement effectively, cause has inconvenience more when assembling.
The purpose of this utility model provide a kind of easy to assembly, usability good, the metal pipe joint of good airproof performance.
The utility model comprises joint body, seal ring, interior volution and the metal tube that is provided with a conjugation tube at least; The conjugation tube internal surface be provided with internal thread, in contract the inclined-plane and shelves edge; The seal ring end be provided with the conjugation tube internal surface in contract that the inclined-plane fits in the inclined-plane that contracts; Interior volution outer surface is provided with the outside thread with conjugation tube internal surface internal screw-thread screw, and one end ring lip is provided with several grooves; Groove is provided with the inclined-plane a pair of and engagement of spanner latch inclined-plane; Insert in the conjugation tube behind volution and the seal ring in metal tube wears in regular turn, interior volution is contained on the internal thread of conjugation tube internal surface with its outside thread spiral shell.
Wherein:
Be provided with clasp between interior volution and the seal ring; Metal tube is provided with and the corresponding annular groove of clasp.
Be provided with pad between clasp and the seal ring.
The wall of volution in groove on the interior volution one end ring lip penetrates.
The clasp outer surface is provided with the projection that several outer surfaces are the inclined-plane; Interior volution internal surface is provided with the inclined-plane with the inclined-plane complementation of clasp outer surface projection outer surface.
Because the utility model comprises joint body, seal ring, interior volution and the metal tube that is provided with conjugation tube; The conjugation tube internal surface be provided with internal thread, in contract the inclined-plane and the retaining edge; The inclined-plane contracts in the seal ring end is provided with; Interior volution outer surface is provided with outside thread, and one end ring lip is provided with several grooves; Groove is provided with the inclined-plane a pair of and engagement of spanner latch inclined-plane; Insert in this conjugation tube behind volution and the seal ring in metal tube wears in regular turn, interior volution is contained on the internal thread of conjugation tube internal surface with its outside thread spiral shell.When metal tube engages with joint body, insert in this conjugation tube behind volution and the seal ring in metal tube worn in regular turn, prop up the retaining edge of conjugation tube internal surface until the metal tube end, the latch that is provided with the inclined-plane with spanner is engaged in having in the inclined plane groove of interior volution, volution in rotation is somebody's turn to do, so that the internal thread of interior volution external thread rotary splice grafting head body engagement pipe, make when using spanner and can rotate and unlikely slippage smoothly by the groove inclined-plane, even also unlikely slippage when exerting all one's strength especially, closely be locked on conjugation tube with volution in guaranteeing, reach the well driving fit of metal tube and joint body, the fluid that transports can be remained in metal tube and the joint body, do not have the phenomenon that fluid leaks from junction point.Not only easy to assembly, usability is good, and good airproof performance, thus reach the purpose of this utility model.
Fig. 1, be the utility model decomposition texture schematic isometric.
Fig. 2, be clasp plan view in the utility model.
Fig. 3, be A-A sectional view among Fig. 2.
Fig. 4, be the utility model structural representation sectional view (coupled condition).
Fig. 5, be B portion partial enlarged drawing among Fig. 4.
Below in conjunction with accompanying drawing the utility model is further elaborated.
As Fig. 1, shown in Figure 4, the utility model comprises joint body 100, seal ring 200, pad 300, clasp 400, interior volution 500 and metal tube 600.
As shown in Figure 2, clasp 400 inside and outside surfaces are respectively equipped with several projections 410,420.As shown in Figure 3, clasp 400 outer surface projections 420 are the inclined-plane 421 of the gradient at θ ° of angle.
As Fig. 1, shown in Figure 4, interior volution 500 outer surfaces are provided with outside thread 510, one end ring lip is provided with several grooves 520, its internal surface is provided with the inclined-plane 540 with 420 θ ° of angles gradient inclined-plane 421 complementations of clasp 400 outer surface projections, outside thread 510 is in order to be combined on joint body 100 conjugation tubes 110 internal threads 120, and each groove 520 is provided with a pair of inclined-plane 530 that supplies latch 710 (720) engagements of spanner 700.Metal tube 600 is provided with the annular groove 610 that fastens for clasp 400 internal surface projections 410.
When metal tube 600 engages with joint body 100, in wearing this metal tube 600 in regular turn, system inserts in this conjugation tube 110 behind volution 500, clasp 400, pad 300 and the seal ring 200, this metal tube 600 extends in the conjugation tube 110 of joint body 100, prop up the retaining edge 130 of these conjugation tube 110 internal surfaces until these metal tube 600 ends, the space of volution 500, clasp 400, pad 300 and seal ring 200 in Shang Yuyou holds between these conjugation tube 110 internal surfaces and metal tube 600 outer surfaces.
As Fig. 4, shown in Figure 5, in the groove 520 with volution 500 in latch 720 engagements of spanner 700, volution 500 in rotation is somebody's turn to do is so that interior volution 500 outside threads 510 screw the internal thread 120 of joint body 100 conjugation tubes 110.Because the latch 720 (710) of spanner 700 and interior volution 500 grooves 520 all are provided with inclined-plane 721 (711), 530, and interior volution 500 grooves 520 penetrate in the wall of interior volution 500 has bigger area of contact so that the latch 720 (710) with spanner 700 to be provided, when using spanner 700, can rotate and unlikely slippage smoothly, especially when exerting all one's strength especially, volution 500 closely is locked on conjugation tube 110 in allowing, with interior volution 500 to conjugation tube 110 is inner screw in, also force the direction that clasp 400 is healed to conjugation tube 110 inside to move, the annular groove 610 that is sticked in metal tube 600 up to clasp 400 arrives the location, finish metal tube 600 and well driving fit of joint body 100, during use, the fluid that transports can be remained in metal tube 600 and the joint body 100, do not have the phenomenon that fluid leaks from junction point.
As shown in Figure 4, when interior volution 500 when conjugation tube 110 inside screw, will drive clasp 400, pad 300 and seal ring 200 to this conjugation tube 110 inner moving.Seal ring 200 is preferably made by rubber, so that it has certain elasticity and toughness.The inclined-plane 140 because these conjugation tube 110 internal surfaces contract in being provided with, make with should in contract and contract inclined-plane 210 to its center of circle radial contraction in the seal ring 200 that inclined-plane 140 fits, and then this metal tube 600 tightened and be fixed on this joint body 110.Between clasp 400 and seal ring 200, pad 300 is set, with when interior volution 500 when conjugation tube 110 inside screw, prevent that clasp 400 from injuring seal ring 200.
As shown in Figure 2, clasp 400 internal surfaces and outer surface are respectively equipped with several projections 410,420, when interior volution 500 screws when making clasp 400 be stuck in the annular groove 610 of metal tube 600 to conjugation tube 110 inside, projection 410 by clasp 400 internal surfaces, frictional force between clasp 400 and metal tube 600 annular grooves 610 is increased, and effectively be fixed on the metal tube 600, make metal tube 600 be difficult for coming off from joint body 100.
As Fig. 3, shown in Figure 5, clasp 400 outer surface projections 420 are provided with the inclined-plane 421 that is θ ° of angle gradient, are the inclined-plane 421 of θ ° of angle gradient and the gradient on interior volution 500 internal surface inclined-planes 540 and just are complementation, and volution 500 has an axial thrust load in making when screwing.When interior volution 500 screws when making clasp 400 be stuck in metal tube 600 annular grooves 610 to conjugation tube 110 inside, volution 500 can axially prop up clasp 400 in this, and clasp 400 can be fixed in the annular groove 610 of metal tube 600 really.If will unclamp being connected of metal tube 600 and joint body 100, the spanner 700 that only must overturn, with the groove 520 of volution 500 in another latch 710 engagements, should interior volution 500 with opposite spin, can unclamp being connected of metal tube 600 and joint body 100.
Claims (6)
1, a kind of metal pipe joint, it comprises joint body, seal ring, interior volution and metal tube; Joint body is provided with at least one conjugation tube, the conjugation tube internal surface be provided with internal thread, in contract the inclined-plane and the retaining edge; The seal ring end be provided with the conjugation tube internal surface in contract that the inclined-plane fits in the inclined-plane that contracts; Interior volution outer surface is provided with the outside thread with conjugation tube internal surface internal screw-thread screw, and one end ring lip is provided with several grooves; Insert in this conjugation tube behind volution and the seal ring in metal tube wears in regular turn, interior volution is contained on the internal thread of conjugation tube internal surface with its outside thread spiral shell; It is characterized in that the groove on the described interior volution one end ring lip is provided with the inclined-plane a pair of and engagement of spanner latch inclined-plane.
2, metal pipe joint according to claim 1 is characterized in that being provided with clasp between the volution and seal ring in described; Metal tube is provided with and the corresponding annular groove of clasp.
3, metal pipe joint according to claim 1 and 2 is characterized in that being provided with pad between described clasp and seal ring.
4, metal pipe joint according to claim 1 and 2 is characterized in that the groove on the described interior volution one end ring lip penetrates the wall of interior volution.
5, metal pipe joint according to claim 1 and 2 is characterized in that being provided with the corresponding projection of annular groove on several and the metal tube at described clasp internal surface.
6, metal pipe joint according to claim 1 and 2 is characterized in that being provided with the projection that several outer surfaces are the inclined-plane at described clasp outer surface; Interior volution internal surface is provided with the inclined-plane with the inclined-plane complementation of clasp outer surface projection outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243971 CN2395118Y (en) | 1999-08-31 | 1999-08-31 | Pipe joint for metal pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243971 CN2395118Y (en) | 1999-08-31 | 1999-08-31 | Pipe joint for metal pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2395118Y true CN2395118Y (en) | 2000-09-06 |
Family
ID=34030159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99243971 Expired - Fee Related CN2395118Y (en) | 1999-08-31 | 1999-08-31 | Pipe joint for metal pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2395118Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324258C (en) * | 2003-10-14 | 2007-07-04 | 安业环球有限公司 | Pipe joint for water or vapor |
| CN102635747A (en) * | 2008-07-11 | 2012-08-15 | 多升投资有限公司 | Fluid pipe connection device and supporting pipe demolition tool thereof |
| CN106122632A (en) * | 2016-08-18 | 2016-11-16 | 张强 | Novel joint |
| CN112166278A (en) * | 2018-04-27 | 2021-01-01 | 沃尔特施陶芬贝格有限责任两合公司 | Cutting ring screwing connector |
-
1999
- 1999-08-31 CN CN 99243971 patent/CN2395118Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1324258C (en) * | 2003-10-14 | 2007-07-04 | 安业环球有限公司 | Pipe joint for water or vapor |
| CN102635747A (en) * | 2008-07-11 | 2012-08-15 | 多升投资有限公司 | Fluid pipe connection device and supporting pipe demolition tool thereof |
| CN106122632A (en) * | 2016-08-18 | 2016-11-16 | 张强 | Novel joint |
| CN112166278A (en) * | 2018-04-27 | 2021-01-01 | 沃尔特施陶芬贝格有限责任两合公司 | Cutting ring screwing connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |