CN201034220Y - Conduit joint accessory and conduit jointing system - Google Patents
Conduit joint accessory and conduit jointing system Download PDFInfo
- Publication number
- CN201034220Y CN201034220Y CNU2007200050256U CN200720005025U CN201034220Y CN 201034220 Y CN201034220 Y CN 201034220Y CN U2007200050256 U CNU2007200050256 U CN U2007200050256U CN 200720005025 U CN200720005025 U CN 200720005025U CN 201034220 Y CN201034220 Y CN 201034220Y
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- CN
- China
- Prior art keywords
- nut
- seal ring
- tubing
- mating system
- annular protrusion
- 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 - Lifetime
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Abstract
The utility model relates to a pipeline joint system and a pipeline joint fitting; wherein, the pipeline joint system comprises: a pipe with annular bulges in circumferential direction, a nut sleeved on the pipe at one side of the annular bulge in the circumferential direction, a sealing ring sleeved on the pipe at the other side of the annular bulge in the circumferential direction and a joint fitting used for receiving sealing ring and matching with the nut screw thread to squeeze the sealing ring; wherein, the annular bulge in circumferential direction is provided with a blending surface for the expanding sealing ring in radial direction. In addition, the lateral face near the nut of the annular bulge in circumferential direction is designed as a surface basically in vertical to the pipe axial line. By using the structure, the utility model has the advantages that: the blending surface of the annular bulge in circumferential direction expands and squeezes the sealing ring in radial direction to enhance the sealing effect, and according to the interaction of the nut and the annular bulge in circumferential direction, the fixing effect of the pipe is enhanced further.
Description
[technical field]
The utility model relates to a kind of pipeline mating system and pipe coupling accessory.
[background technique]
As shown in Figure 1, Fig. 1 is a kind of schematic cross-section of prior art pipeline mating system.In the pipeline mating system of Fig. 1, be processed with outside thread on the nut 11 and be set on the tubing 13.Fitting 12 is provided with the internal thread that cooperates with nut 11.Seal ring 14 is set on the tubing 13, and carries out axial pressure to fill the annular space between tubing 13 and the fitting 12 by 11 pairs of seal rings of nut 14, realizes sealing thus.Because be not provided with any stop mechanism on the tubing, under the effect of pipe interior hydrodynamic pressure, tubing is deviate from from nut 11 and fitting 12 easily, cause leaking.
In order to solve the problems of the technologies described above, in the prior art pipeline mating system of another kind of expander form shown in Figure 2, on tubing 23, form annular protrusion 231 by fashion of extrusion or other suitable mode, simultaneously offer the annular groove 221 that holds this annular protrusion 231, the location of realizing tubing 23 thus in nut 22 inside.Seal ring 24 is the same with said structure to be set on the tubing 23, and is exerted pressure vertically by nut 22, realizes the sealing between tubing 23 and the fitting 21.
In said structure, seal ring carries out axial pressure by nut, when owing to manufacturing tolerances or other reason when the relative seal ring of tubing exists negative deviation or seal ring opposing tabs accessory to have negative deviation, seal ring then can't be realized good sealing.In addition, in prior art pipeline mating system shown in Figure 2, because in the annular groove 221 that the annular protrusion 231 that tubing 23 expands need be housed in nut 22, this annular protrusion 231 can not be excessive, and its sidewall is arc, thereby under the effect of the expansionary force of pipe interior high fluid pressure and pressure, the annular protrusion 231 with arcuate flanks is deviate from from annular groove 221 easily, and causes leaking.In having the existing fitting of seal ring, also there is above-mentioned sealing problem equally.
[summary of the invention]
For seal ring in the pipeline mating system that overcomes prior art by the nut lateral extrusion, have the relatively poor technical problem of situation lower seal effect of radial missing at parts.The utility model provides a kind of pipeline mating system and pipe coupling accessory that can improve sealing effect.In addition, the utility model has further solved the relatively poor technical problem of tubing fixed effect in the existing pipeline mating system.
Seal ring is by the nut lateral extrusion in the pipeline mating system of the utility model solution prior art, the technological scheme that exists the relatively poor technical problem of situation lower seal effect of radial missing to take at parts is: a kind of pipeline mating system is provided, this pipeline mating system comprises: the tubing that is provided with circumferential annular protrusion, be set in nut on the tubing in circumferential annular protrusion one side, be set in the seal ring on the tubing and be used to receive seal ring and cooperate fitting with the crush seal ring with nut thread at the circumferential opposite side of annular protrusion, wherein circumferential annular protrusion is provided with the transitional surface that is used for the radial dilatation seal ring.
According to the utility model one preferred embodiment, transitional surface is the tapered slope towards the seal ring gradually closing.
According to the utility model one preferred embodiment, circumferentially annular protrusion is the facing directly of axis that is basically perpendicular to tubing near the side of nut, and the overhang bracket of nut is on facing directly.
According to the utility model one preferred embodiment, circumferentially annular protrusion is a right-angled triangle along the cross section of the axial direction of tubing.
According to the utility model one preferred embodiment, fitting inside be provided for cooperating with transitional surface the crush seal ring with realize between fitting and the tubing sealing cooperate the inclined-plane.
According to the utility model one preferred embodiment, nut is provided with outside thread, and fitting is provided with the internal thread that cooperates with outside thread, and nut sleeve is provided with anti-slip ring.
According to the utility model one preferred embodiment, the other end of fitting is arranged to the groove type joint.
Seal ring is by the nut lateral extrusion in the pipeline mating system of the utility model solution prior art, the technological scheme that exists the relatively poor technical problem of situation lower seal effect of radial missing to take at parts is: a kind of pipe coupling accessory is provided, the pipe coupling accessory comprises the seal section that is used for the thread section that cooperates with joint unit and is used for sheathed seal ring, and wherein this pipe coupling accessory further comprises the changeover portion that is used for the radial dilatation seal ring that is arranged between thread section and the seal section.
According to the utility model one preferred embodiment, changeover portion is the tapered slope towards the seal section gradually closing.
According to the utility model one preferred embodiment, thread section further is provided with anti-slip ring.
By adopting said structure, the transitional surface that utilizes circumferential annular protrusion carries out radial dilatation and extruding to eliminate the radial missing between seal ring and tubing and the fitting to seal ring, strengthened sealing effect, and by making nut further strengthen the fixed effect of tubing with the facing effect mutually directly of circumferential annular protrusion.
[description of drawings]
Fig. 1 is a kind of schematic cross-section of prior art pipeline mating system;
Fig. 2 is the schematic cross-section of the prior art pipeline mating system of another kind of expander form;
Fig. 3 is the decomposing schematic representation of pipeline mating system of the present utility model;
Fig. 4 is the part assembling schematic representation of pipeline mating system shown in Figure 3;
Fig. 5 is the assembling schematic representation of pipeline mating system shown in Figure 3;
Fig. 6 is pipe coupling accessory one an embodiment's of the present utility model structural representation;
Fig. 7 is another embodiment's of a pipe coupling accessory of the present utility model structural representation;
Fig. 8 is another embodiment's of a pipe coupling accessory of the present utility model structural representation.
[embodiment]
Below in conjunction with drawings and Examples the utility model is elaborated.
As shown in Figure 3-Figure 5, in pipeline mating system of the present utility model, tubing 31 is provided with circumferential annular protrusion 32.Nut 33 is provided with outside thread and has hollow space.Nut 33 is set on the tubing 31 in a side of circumferential annular protrusion 32.Seal ring 34 is set on the tubing 31 at the opposite side of circumferential annular protrusion 32.Circumferentially annular protrusion 32 is at the transitional surface 321 that is formed for radial dilatation seal ring 34 near seal ring 34 1 sides.In the present embodiment, transitional surface 321 is the tapered slope towards seal ring 34 gradually closings.In addition, circumferentially annular protrusion 32 faces 322 directly what form the axis that is basically perpendicular to tubing 31 near nut 33 1 sides.Make circumferential annular protrusion 32 triangle that meets at right angles along the cross section of the axial direction of tubing 31 thus.Fitting 35 is provided with internal thread, and is connected to the cooperation inclined-plane in the internal thread inboard.
When assembling, at first sheathed anti-slip ring 36 on nut 33 prevents that the effect of slip ring is to prevent because the effect lower nut 33 of pressure and vibration produces loosening with fitting 35.Nut 33 and seal ring 34 are set in the both sides of circumferential annular protrusion 32 respectively.Nut 33 is supported on facing directly on 322 of circumferential annular protrusion 32.Subsequently, nut 33 is docked with fitting 35, make the internal thread engagement of the outside thread and the fitting 35 of nut 33, and the external thread section of nut 33 is screwed into fitting 35.In the process of being screwed into, a side of seal ring 34 at first is resisted against on the cooperation inclined-plane of fitting 35.Subsequently, continued circumferential annular protrusion 32 is exerted pressure by nut 33,34 of seal rings relatively move on transitional surface 321, realize radial dilatation thus.In radially and under the acting in conjunction of axial force of transitional surface 321, seal ring 34 is fully filled tubing 31 and circumferential gaps between annular protrusion 32 and fitting 35 inwalls, realizes finer and close sealing effect.In addition, because the end portion supports of nut 33 makes circumferential annular protrusion 32 be difficult to deviate from from nut 33 circumferential facing directly on 322 of annular protrusion 32, further strengthened the fixed effect of tubing 31.
In the present embodiment, circumferentially annular protrusion 32 can utilize the pressure roller with reservation shape to form or form by other appropriate format is prefabricated from tubing 31 inner extruding.
As shown in Figure 6, Fig. 6 is another embodiment who is used for the fitting 36 of pipeline mating system of the present utility model.Identical with the fitting 35 of Fig. 3-shown in Figure 5, an end of fitting 36 also is provided with by internal thread (not shown) and with internal thread joins and cooperates inclined-plane (not shown).But the other end of fitting 36 is configured to groove type joint 361 so that with existing groove type system engages.
As Fig. 7-shown in Figure 8, Fig. 7-Fig. 8 is the various embodiments of pipe coupling accessory of the present utility model.Wherein, in Fig. 7, the pipe coupling accessory comprises and is provided with externally threaded thread section 41 that cooperates with joint unit and the seal section 42 that is used for sheathed seal ring.In addition, between thread section 41 and seal section 42, also further be provided with by the changeover portion 43 that is used for the radial dilatation seal ring.In the present embodiment, this changeover portion 43 is the tapered slope towards seal section 42 gradually closings, so that changeover portion 43 is a right-angled triangle along the cross section of the axial direction of pipe coupling accessory.Wherein, the other end of pipe coupling accessory can be arranged to opening and in open interior suitable internal thread be set, so that engage with other fitting.In addition, the other end of pipe coupling accessory can also seal, so that as the plug of pipeline.During use, seal ring set is located on the seal section 42, and is screwed in the process of joint unit (not shown) at thread section 41, undertaken radially and axial pressure by 43 pairs of seal rings of changeover portion, and then the sealing of realization and joint unit.
The main difference part of pipe coupling accessory among Fig. 8 and pipe coupling accessory shown in Figure 7 is: be provided with the seal section 53,54 of 51,52 and two different-diameters of thread section of two different-diameters at the pipe coupling accessory two ends of Fig. 8, and form changeover portion 55,56 respectively between thread section 51 and seal section 53 and thread section 52 and seal section 54.The effect of pipe coupling accessory is the pipeline that is used to engage different-diameter.
In addition, can further be arranged with anti-slip ring 44,57,58, under the effect of pressure and vibration, deviate from from joint unit to prevent the pipe coupling accessory at the thread section 41,51,52 of Fig. 7 and Fig. 8.
In the above-described embodiments, only the utility model has been carried out exemplary description, but those skilled in the art can design various mode of executions according to different actual demand under the situation that does not break away from the scope and spirit that the utility model protects.
Claims (10)
1. pipeline mating system, described pipeline mating system comprises: be provided with circumferential annular protrusion tubing, be set in nut on the described tubing, be set in the seal ring on the described tubing and be used to receive described seal ring and cooperate to push the fitting of described seal ring in described circumferential annular protrusion one side with described nut thread at the opposite side of described circumferential annular protrusion, it is characterized in that: described circumferential annular protrusion is provided with the transitional surface that is used for the described seal ring of radial dilatation.
2. pipeline mating system according to claim 1 is characterized in that: described transitional surface is the tapered slope towards described seal ring gradually closing.
3. pipeline mating system according to claim 2 is characterized in that: described circumferential annular protrusion is the facing directly of axis that is basically perpendicular to described tubing near the side of described nut, and the overhang bracket of described nut is on described facing directly.
4. pipeline mating system according to claim 1 is characterized in that: described circumferential annular protrusion is a right-angled triangle along the cross section of the axial direction of described tubing.
5. according to any described pipeline mating system of claim 1-4, it is characterized in that: described fitting inside be provided with cooperate with described transitional surface the described seal ring of extruding with realize between described fitting and the described tubing sealing cooperate the inclined-plane.
6. pipeline mating system according to claim 5 is characterized in that: described nut is provided with outside thread, and described fitting is provided with the internal thread that cooperates with described outside thread, and described nut sleeve is provided with anti-slip ring.
7. pipeline mating system according to claim 5 is characterized in that: the other end of described fitting is arranged to the groove type joint.
8. pipe coupling accessory, described pipe coupling accessory comprises the seal section that is used for the thread section that cooperates with joint unit and is used for sheathed seal ring, it is characterized in that: described pipe coupling accessory further comprises the changeover portion that is used for the described seal ring of radial dilatation that is arranged between described thread section and the described seal section.
9. pipe coupling accessory according to claim 8 is characterized in that: described changeover portion is the tapered slope towards described seal section gradually closing.
10. pipe coupling accessory according to claim 8 is characterized in that: described thread section further is provided with anti-slip ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200050256U CN201034220Y (en) | 2007-02-13 | 2007-02-13 | Conduit joint accessory and conduit jointing system |
| HK07112441A HK1106396A2 (en) | 2007-02-13 | 2007-11-14 | Tube coupling system and tube coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200050256U CN201034220Y (en) | 2007-02-13 | 2007-02-13 | Conduit joint accessory and conduit jointing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201034220Y true CN201034220Y (en) | 2008-03-12 |
Family
ID=39195111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200050256U Expired - Lifetime CN201034220Y (en) | 2007-02-13 | 2007-02-13 | Conduit joint accessory and conduit jointing system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201034220Y (en) |
| HK (1) | HK1106396A2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142862A1 (en) * | 2011-04-20 | 2012-10-26 | Pang Haohui | Connection method for thin wall metal pipe and pipe joint |
| CN103618187A (en) * | 2013-11-15 | 2014-03-05 | 中航光电科技股份有限公司 | Novel seal structure of fluid slip ring |
| CN106480960A (en) * | 2015-08-25 | 2017-03-08 | 宋泰光 | Flange for toilet seat structure |
| EP3037592B1 (en) | 2014-12-22 | 2019-03-20 | Amfag S.R.L. | Jet breaker/aerator cartridge which can be manually disassembled and faucet comprising said cartridge |
| CN114001084A (en) * | 2021-11-05 | 2022-02-01 | 重庆金塑防腐管件有限公司 | Corrosion-resistant joint protection mechanism |
-
2007
- 2007-02-13 CN CNU2007200050256U patent/CN201034220Y/en not_active Expired - Lifetime
- 2007-11-14 HK HK07112441A patent/HK1106396A2/en not_active IP Right Cessation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012142862A1 (en) * | 2011-04-20 | 2012-10-26 | Pang Haohui | Connection method for thin wall metal pipe and pipe joint |
| CN103618187A (en) * | 2013-11-15 | 2014-03-05 | 中航光电科技股份有限公司 | Novel seal structure of fluid slip ring |
| EP3037592B1 (en) | 2014-12-22 | 2019-03-20 | Amfag S.R.L. | Jet breaker/aerator cartridge which can be manually disassembled and faucet comprising said cartridge |
| CN106480960A (en) * | 2015-08-25 | 2017-03-08 | 宋泰光 | Flange for toilet seat structure |
| CN106480960B (en) * | 2015-08-25 | 2019-03-19 | 宋泰光 | Flange for toilet seat structure |
| CN114001084A (en) * | 2021-11-05 | 2022-02-01 | 重庆金塑防腐管件有限公司 | Corrosion-resistant joint protection mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1106396A2 (en) | 2008-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080312 |
|
| CX01 | Expiry of patent term |