CN101749514B - Sealing rings of Hafu joint - Google Patents
Sealing rings of Hafu joint Download PDFInfo
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- CN101749514B CN101749514B CN2010101157632A CN201010115763A CN101749514B CN 101749514 B CN101749514 B CN 101749514B CN 2010101157632 A CN2010101157632 A CN 2010101157632A CN 201010115763 A CN201010115763 A CN 201010115763A CN 101749514 B CN101749514 B CN 101749514B
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- stamping steel
- steel ribbon
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- seal ring
- sealing rings
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Abstract
The invention belongs to the technical field of emergency repair of a pipeline, which in particular relates to sealing rings of a Hafu joint. The sealing rings of the Hafu joint comprise sealing rings arranged at both sides, wherein a first sealing strip and a second sealing strip are arranged between the sealing rings, the end parts of the first sealing strip and the second sealing strip are connected with each other, and the position of the first sealing strip after the first sealing strip is symmetrical along the central axis of the sealing rings is opposite to the position of the second sealing strip. The position of the first sealing strip after the first sealing strip is symmetrical along the central axis of the sealing rings is opposite to the position of the second sealing strip, i.e. the central axes of the first sealing strip and the second sealing strip about the sealing rings are not symmetrical. By the arrangement mode of the sealing rings of the Hafu joint, the first sealing strip and the second sealing strip are incompletely abutted together or are not abutted together when the first sealing strip and the second sealing strip are oppositely installed, and the sealing effect of the sealing strips is realized by the structure matching of the sealing strips and the casings of the Hafu joint, thereby enhancing high-pressure resistance performance and water hammer resistance performance of the Hafu joint greatly and ensuring sealing property of the Hafu joint by the matching of the casings and the sealing strips.
Description
Technical field
The invention belongs to the pipe first-aid technical field, be specifically related to a kind of sealing rings of Hafu joint.
Background technique
A large amount of running water pipes, fuel tube, steam tube and petrochemical industry conveyance conduits of using in production and the life; These pipelines all might be improper because of safeguarding, geology depression and external force collision etc. are former thereby seepage or breakage take place; When needing repairing, use the Hough joint that the seepage or the breakage spot of pipeline are carried out sealed envelope usually.
The housing that the structure of existing Hough joint comprises opposed installation be arranged on the sealing gasket on the housing, the structure of sealing gasket is symmetrically distributed about the medial axis of housing, the sealing gasket during installation on the two housings is opposed to be abutted in together to improve sealability.Yet the high voltage performance of existing sealing gaskets of Hafu joint and anti-water hammer performance are not good, local rollover and high-pressure liquid take place easily go out accident, cause the seal failure of Hough joint, therefore demand urgently improving.
Summary of the invention
The purpose of this invention is to provide a kind of sealing rings of Hafu joint, its simple structure and good seal performance.
For realizing above-mentioned purpose; The present invention has adopted following technological scheme: a kind of sealing rings of Hafu joint; Comprise the seal ring that is arranged on both sides; It is characterized in that: be provided with between the described seal ring and connect first Stamping Steel Ribbon and second Stamping Steel Ribbon of end each other, the position of position and second Stamping Steel Ribbon of described first Stamping Steel Ribbon after about the medial axis symmetry of seal ring is different; Said first Stamping Steel Ribbon and the parallel setting of second Stamping Steel Ribbon, and the length direction of the two all with the parallel to an axis of seal ring; Described first Stamping Steel Ribbon is fixed on the radial outside of seal ring one side, and second Stamping Steel Ribbon is fixed between the inner ring and outer ring of seal ring opposite side.
The position of position and second Stamping Steel Ribbon of described first Stamping Steel Ribbon after about the medial axis symmetry of seal ring is different; Promptly first Stamping Steel Ribbon and second Stamping Steel Ribbon are not symmetrical about the medial axis of seal ring yet; This set mode of sealing rings of Hafu joint makes win Stamping Steel Ribbon and second Stamping Steel Ribbon when opposed installation, not exclusively abut in together or not abut in together; The sealing effect of Stamping Steel Ribbon is realized through the respective outer side edges of Stamping Steel Ribbon and Hough joint housing; Because the shell material of Hough joint is a metal; Therefore the structural strength of Hough joint housing is higher, thereby housing matches with Stamping Steel Ribbon and greatly improved the high voltage performance and the anti-water hammer performance of Hough joint, has guaranteed the sealability that Hough saves.
Description of drawings
Fig. 1 is the mounting structure schematic representation of Hough joint;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation of housing;
Fig. 5 is the B-B sectional view of Fig. 3;
Fig. 6 is a structural representation of the present invention;
Fig. 7 is the plan view of Fig. 6, and the part that is painted with hatching among Fig. 7 is the B-B sectional view among Fig. 1;
Fig. 8 is the left view of Fig. 6;
Fig. 9 is the A-A sectional view of Fig. 7.
Embodiment
Shown in Fig. 1～5; A kind of Hough joint; The housing 30 that comprises two opposed installations; Described housing 30 is provided with outward extending flange edge 31, two flange edges 31 places and is provided with tooth engaged 311 and interlock bed 312 respectively along its axial both sides, two housings 30 is through tooth engaged 311 and interlock bed 312 engaged linking together.
The shape of two housings 30 is identical, also is that each housing 30 is provided with two flange edges 31, and one of them flange edge 31 place is provided with tooth engaged 311, and another flange edge 31 places are provided with interlock bed 312, like Fig. 2,4, shown in 5.During construction and installation,, and make the tooth engaged 311 of a housing 30 and the interlock bed 312 relative interlocks of another housing 30, again the flange edge 31 that screw bolt passes two housings 30 is oppositely arranged is also got final product with nut is fastening the 30 opposed installations of two housings.
Owing to adopt the biting type connection between the housing 30; Therefore not only improved installation rate greatly; And the engaged sealability that greatly improves the Hough joint between tooth engaged 311 and the interlock bed 312, also greatly improved high voltage performance and anti-water hammer performance that Hough saves simultaneously.
Like Fig. 2,4, shown in 5, described tooth engaged 311 is the boss shape, and interlock bed 312 is set to the groove-like that two wall therebetween are held recess, and the cross section of the cross section of tooth engaged 311 and interlock bed 312 recesses coincide mutually or roughly coincide mutually.The groove that makes the tooth head of tooth engaged 311 stretch into interlock bed 312 during installation gets final product, and installation rate is fast and the interlock performance is good.
Flax silk can be set to improve sealability between tooth engaged 311 and the interlock bed 312; As preferred version of the present invention; Be provided with first Stamping Steel Ribbon 21 between described tooth engaged 311 and the interlock bed 312; Said first Stamping Steel Ribbon 21 is the rubber material, not only is easy to laying installation, and good seal performance.
Further, like Fig. 2,4, shown in 5, the inboard of described tooth engaged 311 is provided with platform 313, is equipped with second Stamping Steel Ribbon 22 on the platform 313; Described first Stamping Steel Ribbon 21 is embedded the recesses at interlock bed 312; First Stamping Steel Ribbon 21 towards the width of the end face of tooth engaged 311 width greater than the end face of the tooth engaged that leans with it 311, the part of giving prominence to outside tooth engaged 311 end faces of described first Stamping Steel Ribbon 21 is resisted against on second Stamping Steel Ribbon 22.This scheme not only forms potted line in tooth engaged 311 between interlock bed 312; And between second Stamping Steel Ribbon 22, also formed potted line at first Stamping Steel Ribbon 21; Both further improve the sealability of Hough joint, and improved the high voltage performance and the anti-water hammer performance of Stamping Steel Ribbon.
Further; Described tooth engaged 311 and extend axially the two ends place to housing 30 of interlock bed 312 along housing 30; The place, two ends of housing 30 is provided with Semicircular seal groove 32; Seal groove 32 places are provided with seal ring 10, and described first Stamping Steel Ribbon 21, second Stamping Steel Ribbon 22 and two seal rings 10 link to each other and the common seal rings of forming a sealing, thereby have greatly improved the sealability of Hough joint.
Further improvement as aforementioned preferred version; Described first Stamping Steel Ribbon 21 is embedded the recesses at interlock bed 312; The end face towards tooth engaged 311 of first Stamping Steel Ribbon 21 is provided with groove; The top of described tooth engaged 311 is resisted against the groove of first Stamping Steel Ribbon 21 tightly, and is as shown in Figure 2.
As another kind of preferred version of the present invention; Described tooth engaged 311 and extend axially the two ends place to housing 30 of interlock bed 312 along housing 30; The place, two ends of housing 30 is provided with Semicircular seal groove 32; Described tooth engaged 311, interlock bed 312 and both sides sealing groove 32 link to each other and the common loops of forming a sealing, can the filling flax silk in the loop of this sealing to improve the sealability of Hough joint.
Further, the inboard of described tooth engaged 311 is provided with platform 313, is equipped with second Stamping Steel Ribbon 22 on the platform 313, and second Stamping Steel Ribbon 22 on the said platform 313 is abutted together with the inboard wall of interlock bed 312 tightly.This scheme has formed the two seals line equally; Wherein one potted line is arranged between tooth engaged 311 and the interlock bed 312; Another road potted line then is arranged between the inboard wall of second Stamping Steel Ribbon 22 and interlock bed 312, has improved sealability, high voltage performance and the anti-water hammer performance of Hough joint equally.
Further; Be provided with first Stamping Steel Ribbon 21 between described tooth engaged 311 and the interlock bed 312; The seal groove 32 at the place, two ends of housing 30 is provided with seal ring 10; The inboard of described tooth engaged 311 is provided with platform 313, is equipped with second Stamping Steel Ribbon 22 on the platform 313, and the inboard wall of second Stamping Steel Ribbon 22 on the platform 313 and interlock bed 312 is abutted together tightly; Described first Stamping Steel Ribbon 21, second Stamping Steel Ribbon 22 and two seal rings 10 link to each other and the common seal rings of forming a sealing, thereby have greatly improved the sealability of Hough joint.
As the further improvement of aforementioned preferred version, the end face towards tooth engaged 311 of described first Stamping Steel Ribbon 21 is provided with groove, and the top of described tooth engaged 311 is resisted against the groove of first Stamping Steel Ribbon 21 tightly.
Comprehensively aforementioned; Be positioned at the seal ring 10 of housing 30 both sides; And the connection that is provided with between the seal ring 10 first Stamping Steel Ribbon 21 and second Stamping Steel Ribbon 22 of end each other, formed sealing rings of Hafu joint jointly, as shown in Figure 6; And owing to first Stamping Steel Ribbon 21 is embedded between tooth engaged 311 and interlock bed 312; Second Stamping Steel Ribbon 22 is laid on the inboard platform 313 of tooth engaged 311, and therefore the position of position and second Stamping Steel Ribbon 22 of described first Stamping Steel Ribbon 21 after about the medial axis symmetry of seal ring 10 is different, also promptly not symmetrical about the medial axis of housing 30 in first Stamping Steel Ribbon 21 and second Stamping Steel Ribbon 22; The described not symmetrical multiple implementation that has does not wait such as the width that makes first Stamping Steel Ribbon 21 and second Stamping Steel Ribbon 22 to get final product.
Certain first Stamping Steel Ribbon 21 and second Stamping Steel Ribbon 22 save housing about the Hough that the not symmetrical seal ring in the medial axis of housing 30 goes for other structures too, as long as Stamping Steel Ribbon and housing can be realized good sealing.
Know by aforementioned equally; The distance of the outer rim of described first Stamping Steel Ribbon 21 and seal ring 10 medial axis is greater than the outer rim of second Stamping Steel Ribbon 22 and the distance of seal ring 10 medial axis; And the cross-sectional width of first Stamping Steel Ribbon 21 is as shown in Figure 6 greater than the cross-sectional width of second Stamping Steel Ribbon 22.
Make the cross-sectional width of the cross-sectional width of first Stamping Steel Ribbon 21 greater than second Stamping Steel Ribbon 22; Can so that the lateral overlap of the inboard of first Stamping Steel Ribbon 21 and second Stamping Steel Ribbon 22 together; And can be under the prerequisite that guarantees sealability; Reduce material consumption, reduce the volume of Hough joint, help reducing Hough joint weight and install with being convenient to.
Further, described first Stamping Steel Ribbon 21 is fixed on the radial outside of seal ring 10, and second Stamping Steel Ribbon 22 is fixed between the inner ring and outer ring of seal ring 10, and installing and fixing of whole seal ring is convenient in this design.
Further, as shown in Figure 6, the edge flush of the outer ring of the outer rim of described second Stamping Steel Ribbon 22 and seal ring 10 not only is convenient to second Stamping Steel Ribbon 22 and successfully is laid on the platform 313, and is convenient to the manufacturing of seal ring.
As preferred version of the present invention, shown in Fig. 6～8, be provided with protuberance 11 on the end face of described seal ring 10.
Being arranged so that when the Hough joint is installed of protuberance 11; The end face of the adjacent seals circle 10 of two housings 30 abuts in together opposite one another; The protuberance 11 that also is adjacent seals circle 10 abuts in together opposite one another; Under the fastening effect of bolt, protuberance 11 produces compressive strain, thereby has guaranteed the sealability of end seal face.
As preferred version of the present invention, as shown in Figure 8, described protuberance 11 is the chock shape; One side end face and the seal ring 10 of chock are connected as a single entity, and the opposite side end face is skewed, and the outer ring of selfsealings circle 10 is protruding gradually to inner ring; Simple in structure, materials are economized and are convenient to and make and realize.
Further, as shown in Figure 8, the inclination angle beta of the skewed end face of described protuberance 11 is 5～15 °; Also be that angle β between the both sides end face of chock shape of protuberance 11 is 5～15 degree; When adopting this structure, the protruding end of two protuberances 11 that are oppositely arranged will be driven plain under the fastening effect of bolt, and produce the sealability of enough deformation with the end of raising seal ring 10; The other end of two protuberances 11 also abuts in together tightly simultaneously; Increased sealing area, further improved sealability, also reduced difficulty of construction simultaneously and improved speed of application.
Further; Like Fig. 7, shown in 8; The end near protuberance 11 of described seal ring 10 is provided with support platform 12; The cross-section area of support platform 12 is greater than the cross-section area of seal ring 10, thereby can increase the sealing area of the end of seal ring 10, improved the high voltage performance and the anti-water hammer performance of seal ring 10.
As another kind of preferred version of the present invention; Like Fig. 7, shown in 9; Described first Stamping Steel Ribbon 21 and/or second Stamping Steel Ribbon 22 are provided with is convenient to its positioning block that installs and fixes and/or locating slot 23; Thereby can prevent that Stamping Steel Ribbon from taking place to turn on one's side or go out under the effect of partial high pressure or water hammer, guarantee the sealability of Hough joint.
The present invention adopts positioning block 23; Described positioning block 23 is for being arranged on the convexity on first Stamping Steel Ribbon 21 and/or second Stamping Steel Ribbon 22; Positioning block 23 is along the length direction setting of Stamping Steel Ribbon, and positioning block 23 is separately positioned on the two end part and the middle part of Stamping Steel Ribbon, with the sealability of abundant raising Hough joint.
Claims (9)
1. sealing rings of Hafu joint; Comprise the seal ring (10) that is arranged on both sides; It is characterized in that: be provided with between the described seal ring (10) and connect first Stamping Steel Ribbon (21) and second Stamping Steel Ribbon (22) of end each other, the position of position and second Stamping Steel Ribbon (22) of described first Stamping Steel Ribbon (21) after about the medial axis symmetry of seal ring (10) is different; Said first Stamping Steel Ribbon (21) and the parallel setting of second Stamping Steel Ribbon (22), and the length direction of the two all with the parallel to an axis of seal ring (10); Described first Stamping Steel Ribbon (21) is fixed on the radial outside of seal ring (10) one sides, and second Stamping Steel Ribbon (22) is fixed between the inner ring and outer ring of seal ring (10) opposite side.
2. sealing rings of Hafu joint according to claim 1; It is characterized in that: the distance of the outer rim of described first Stamping Steel Ribbon (21) and seal ring (10) medial axis is greater than the outer rim of second Stamping Steel Ribbon (22) and the distance of seal ring (10) medial axis, and the cross-sectional width of first Stamping Steel Ribbon (21) is greater than the cross-sectional width of second Stamping Steel Ribbon (22).
3. sealing rings of Hafu joint according to claim 1 and 2 is characterized in that: be provided with protuberance (11) on the end face of described seal ring (10).
4. sealing rings of Hafu joint according to claim 1 and 2 is characterized in that: the edge flush of the outer ring of the outer rim of described second Stamping Steel Ribbon (22) and seal ring (10).
5. sealing rings of Hafu joint according to claim 1 is characterized in that: described first Stamping Steel Ribbon (21) and/or second Stamping Steel Ribbon (22) are provided with is convenient to its positioning block that installs and fixes and/or locating slot (23).
6. sealing rings of Hafu joint according to claim 3 is characterized in that: described protuberance (11) is the chock shape, and a side end face of chock and seal ring (10) are connected as a single entity, and the opposite side end face is skewed, and the outer ring of selfsealings circle (10) is protruding gradually to inner ring.
7. sealing rings of Hafu joint according to claim 6 is characterized in that: the end near protuberance (11) of described seal ring (10) is provided with support platform (12), and the cross-section area of support platform (12) is greater than the cross-section area of seal ring (10).
8. sealing rings of Hafu joint according to claim 5; It is characterized in that: described positioning block (23) is for being arranged on the convexity on the Stamping Steel Ribbon; Positioning block (23) is along the length direction setting of Stamping Steel Ribbon, and positioning block (21) is separately positioned on the two end part and the middle part of Stamping Steel Ribbon.
9. sealing rings of Hafu joint according to claim 6 is characterized in that: the angle of inclination of the skewed end face of described protuberance (11) is 5～15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101157632A CN101749514B (en) | 2010-01-30 | 2010-01-30 | Sealing rings of Hafu joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101157632A CN101749514B (en) | 2010-01-30 | 2010-01-30 | Sealing rings of Hafu joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101749514A CN101749514A (en) | 2010-06-23 |
| CN101749514B true CN101749514B (en) | 2012-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101157632A Active CN101749514B (en) | 2010-01-30 | 2010-01-30 | Sealing rings of Hafu joint |
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| CN (1) | CN101749514B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679087B (en) * | 2012-05-18 | 2016-03-23 | 安徽同发设备股份有限公司 | A kind of open-loop Hough section seal pad |
| CN102758990A (en) * | 2012-07-25 | 2012-10-31 | 黄争鸣 | Quick pipeline quick leakage stopper and processing and forming method thereof |
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2010
- 2010-01-30 CN CN2010101157632A patent/CN101749514B/en active Active
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| Publication number | Publication date |
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| CN101749514A (en) | 2010-06-23 |
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