CN211875370U - Flexible sealing connecting sleeve for pipe fitting - Google Patents
Flexible sealing connecting sleeve for pipe fitting Download PDFInfo
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- CN211875370U CN211875370U CN201922272061.4U CN201922272061U CN211875370U CN 211875370 U CN211875370 U CN 211875370U CN 201922272061 U CN201922272061 U CN 201922272061U CN 211875370 U CN211875370 U CN 211875370U
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- pipe fitting
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Abstract
The utility model provides a flexible sealing connecting sleeve for pipe fittings, which comprises a first pipe fitting, a second pipe fitting, a rigid sealing sleeve and an elastic sealing ring; the two ends of the rigid sealing sleeve are respectively sleeved on the pipe orifice of the first pipe fitting and the pipe orifice of the second pipe fitting; the elastic sealing ring is arranged between the inner wall of the rigid sealing sleeve and the outer wall of the first pipe fitting, and the elastic sealing ring is arranged between the inner wall of the rigid sealing sleeve and the outer wall of the second pipe fitting; the rigid sealing sleeve is of an arc-shaped sleeve structure with a thick middle part and thin two ends, and gaps exist between the inner wall surface of the rigid sealing sleeve and the outer wall surfaces of the first pipe fitting and the second pipe fitting; the elastic sealing ring and the rigid sealing sleeve are fixed into a whole, and the elastic sealing ring is in sliding sealing fit with the outer wall surface of the first pipe fitting and the outer wall surface of the second pipe fitting; the rigid sealing sleeve can extrude the elastic sealing ring to deform, so that the central line of the rigid sealing sleeve and the central line of the first pipe fitting or the second pipe fitting form an angle alpha, and the angle alpha is smaller than 9 degrees.
Description
Technical Field
The utility model relates to a high pressure pipe flexonics compensation technical field specifically is a pipe fitting flexible seal adapter sleeve. The sealing ring is used in the compensator by utilizing good sealing performance, smaller friction coefficient and higher anti-extrusion capacity of the sealing ring, so that the pipeline sealing and large axial compensation are realized.
Background
For the sealing connection of the guide pipe, particularly for the sealing connection of an air guide pipe of an airplane, a compensator is required to be used for compensating the stress and displacement of a pipeline caused by temperature change, installation error, mechanical vibration and the like, so that the reliability and the safety of the air guide pipe are ensured. The traditional corrugated pipeline compensator has the advantages of limited compensation amount, large pressure thrust, large weight, short service life, increased maintenance and repair cost of an airplane, higher requirement on the fixed supporting strength of a pipeline, more pipelines needing to be sampled and manufactured on site in the pipeline manufacturing process, poor manufacturability and increased manufacturing cost. The ball joint type compensator can only realize angle compensation, cannot realize axial and radial compensation, and has limited use position.
The maximum angle compensation of the flexible joint of the existing structure is not more than 7.5 degrees, the axial compensation capability is avoided, the service life of the corrugated compensator of the existing structure is greatly shortened under the compensation amount, the weight of the compensator of the existing structure is limited due to material selection, and the compensator of the existing structure is limited due to material selection and needs to be sealed by adopting a welding mode.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the technical problems that the flexible joint cannot compensate the angle, is heavy and is inconvenient to install are solved.
The technical scheme is as follows:
the utility model provides a pipe fitting flexible seal adapter sleeve, its characterized in that: the device comprises a first pipe fitting, a second pipe fitting, a rigid sealing sleeve and an elastic sealing ring; the two ends of the rigid sealing sleeve are respectively sleeved on the pipe orifice of the first pipe fitting and the pipe orifice of the second pipe fitting; the elastic sealing ring is arranged between the inner wall of the rigid sealing sleeve and the outer wall of the first pipe fitting, and the elastic sealing ring is arranged between the inner wall of the rigid sealing sleeve and the outer wall of the second pipe fitting; the rigid sealing sleeve is of an arc-shaped sleeve structure with a thick middle part and thin two ends, and gaps exist between the inner wall surface of the rigid sealing sleeve and the outer wall surfaces of the first pipe fitting and the second pipe fitting; the elastic sealing ring and the rigid sealing sleeve are fixed into a whole, and the elastic sealing ring is in sliding sealing fit with the outer wall surface of the first pipe fitting and the outer wall surface of the second pipe fitting; the rigid sealing sleeve can extrude the elastic sealing ring to deform, so that the central line of the rigid sealing sleeve and the central line of the first pipe fitting or the second pipe fitting form an angle alpha, and the angle alpha is less than or equal to 9 degrees.
Furthermore, the outer wall surface of the first pipe fitting and/or the second pipe fitting is/are provided with a limiting device for limiting the sliding range of the rigid sealing sleeve.
Further, the angle α is less than 7.5 °.
Further, the elastic sealing ring comprises a rigid retainer and an elastic sealing material, and the rigid retainer is arranged inside the elastic sealing material.
Further, the elastic sealing material is rubber or polytetrafluoroethylene.
Furthermore, the rigid retainer is made of metal. Preferably steel or an aluminium alloy.
Furthermore, the rigid retainer is a ring-shaped member, the cross section of the ring-shaped member is in the shape of an open frame, and the opening direction is the central line direction of the pipe fitting. Preferably C-, V-or U-shaped.
The utility model has the advantages that: the utility model discloses angle compensation can reach 9, possesses axial, radial compensation ability simultaneously. The utility model discloses can possess bigger axial compensation volume, its life does not have obvious relation with axial compensation volume size. The utility model discloses weight is lighter. The utility model discloses need not the gas tightness welding seam.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment;
FIG. 3 is a schematic view of radial adjustment;
FIG. 4 is a partially enlarged schematic view;
FIG. 5 is a schematic structural view of an elastic sealing ring;
wherein: 1-a first tubular member; 2-a second tubular member; 3-rigid sealing sleeve; 4-elastic sealing ring; 5-a rigid cage; 6-elastic sealing material; 7-rigid gland centerline; 8-first pipe centre line; 9-a limiting device; 10-gap.
Detailed Description
The following embodiments are given in conjunction with the accompanying drawings
And limiting devices are arranged on the outer wall surfaces of the first pipe fitting and the second pipe fitting and used for limiting the sliding range of the rigid sealing sleeve.
The elastic sealing ring comprises a rigid retainer and an elastic sealing material, wherein the rigid retainer is arranged inside the elastic sealing material.
The elastic sealing material is rubber or polytetrafluoroethylene.
The rigid retainer is a ring-shaped piece, the cross section of the ring-shaped piece is in an open frame shape, and the opening direction is the central line direction of the pipe fitting.
And limiting devices are arranged on the outer wall surfaces of the first pipe fitting and the second pipe fitting and used for limiting the sliding range of the rigid sealing sleeve.
The elastic sealing ring is made of rubber or polytetrafluoroethylene.
The rigid retainer is a ring-shaped piece, the cross section of the ring-shaped piece is in an open frame shape, and the opening direction is the central line direction of the pipe fitting. The cross section is U-shaped.
Claims (9)
1. The utility model provides a pipe fitting flexible seal adapter sleeve which characterized in that: the device comprises a first pipe fitting, a second pipe fitting, a rigid sealing sleeve and an elastic sealing ring; the two ends of the rigid sealing sleeve are respectively sleeved on the pipe orifice of the first pipe fitting and the pipe orifice of the second pipe fitting; the elastic sealing ring is arranged between the inner wall of the rigid sealing sleeve and the outer wall of the first pipe fitting, and the elastic sealing ring is arranged between the inner wall of the rigid sealing sleeve and the outer wall of the second pipe fitting; the rigid sealing sleeve is of an arc-shaped sleeve structure with a thick middle part and thin two ends, and gaps exist between the inner wall surface of the rigid sealing sleeve and the outer wall surfaces of the first pipe fitting and the second pipe fitting; the elastic sealing ring and the rigid sealing sleeve are fixed into a whole, and the elastic sealing ring is in sliding sealing fit with the outer wall surface of the first pipe fitting and the outer wall surface of the second pipe fitting; the rigid sealing sleeve can extrude the elastic sealing ring to deform, so that the central line of the rigid sealing sleeve and the central line of the first pipe fitting or the second pipe fitting form an angle alpha, and the angle alpha is less than or equal to 9 degrees.
2. The pipe fitting flexible sealing connecting sleeve according to claim 1, characterized in that: and the outer wall surface of the first pipe fitting and/or the second pipe fitting is/are provided with a limiting device for limiting the sliding range of the rigid sealing sleeve.
3. The pipe fitting flexible sealing connecting sleeve according to claim 1, characterized in that: the angle alpha is smaller than 7.5 deg..
4. The pipe fitting flexible sealing connecting sleeve according to claim 1, characterized in that: the elastic sealing ring comprises a rigid retainer and an elastic sealing material, wherein the rigid retainer is arranged inside the elastic sealing material.
5. The pipe fitting flexible sealing connecting sleeve according to claim 1, characterized in that: the elastic sealing material is rubber or polytetrafluoroethylene.
6. The pipe fitting flexible sealing connecting sleeve according to claim 4, is characterized in that: the rigid retainer is made of metal.
7. The pipe fitting flexible sealing connecting sleeve according to claim 6, characterized in that: the rigid retainer is made of steel or aluminum alloy.
8. The pipe fitting flexible sealing connecting sleeve according to claim 4, is characterized in that: the rigid retainer is a ring-shaped piece, the cross section of the ring-shaped piece is in an open frame shape, and the opening direction is the central line direction of the pipe fitting.
9. The flexible sealing connecting sleeve for pipe fittings according to claim 8, wherein: the cross section is C-shaped, V-shaped or U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922272061.4U CN211875370U (en) | 2019-12-17 | 2019-12-17 | Flexible sealing connecting sleeve for pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922272061.4U CN211875370U (en) | 2019-12-17 | 2019-12-17 | Flexible sealing connecting sleeve for pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211875370U true CN211875370U (en) | 2020-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922272061.4U Active CN211875370U (en) | 2019-12-17 | 2019-12-17 | Flexible sealing connecting sleeve for pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211875370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966471A (en) * | 2019-12-17 | 2020-04-07 | 太原航空仪表有限公司 | Flexible sealing connecting sleeve for pipe fitting |
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2019
- 2019-12-17 CN CN201922272061.4U patent/CN211875370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966471A (en) * | 2019-12-17 | 2020-04-07 | 太原航空仪表有限公司 | Flexible sealing connecting sleeve for pipe fitting |
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