CN112648453B - Pipe connection device - Google Patents
Pipe connection device Download PDFInfo
- Publication number
- CN112648453B CN112648453B CN202011375165.9A CN202011375165A CN112648453B CN 112648453 B CN112648453 B CN 112648453B CN 202011375165 A CN202011375165 A CN 202011375165A CN 112648453 B CN112648453 B CN 112648453B
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- CN
- China
- Prior art keywords
- sleeve
- sealing ring
- elastic sealing
- ring
- pressing sleeve
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- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 93
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 239000007769 metal material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 230000008602 contraction Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000012999 compression bending Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides a pipeline connecting device which comprises a connecting sleeve and a pressing sleeve which are sleeved on a pipeline to be connected, wherein the connecting sleeve and the pressing sleeve form connection fit for limiting axial separation of the connecting sleeve and the pressing sleeve, an elastic sealing sleeve is sleeved on the pipeline to be connected at the joint of the pressing sleeve and the connecting sleeve, locking teeth are uniformly embedded in the inner ring of the elastic sealing ring at intervals in the circumferential direction, the inner ring of the elastic sealing ring is provided with a complete sealing ring surface, the elastic sealing ring is radially deformed when the pressing sleeve and the connecting sleeve are mutually close, and one end of the connecting sleeve, which is far away from the pressing sleeve, is connected with a pipeline connecting piece or a pipeline part. In the scheme, the radial contraction of the elastic sealing ring is realized through the mutual approaching of the connecting sleeve and the pressing sleeve, the locking fixation is realized through the locking teeth, and the sealing effect is realized through the complete sealing ring surface, so that the anti-falling capacity and the sealing capacity of the pipeline connecting device are ensured.
Description
Technical Field
The invention relates to pipeline maintenance and connection, in particular to a pipeline connecting device.
Background
In the pipeline laying or maintaining process, pipelines are usually required to be connected, the connection process is generally carried out through flange plates, the flange is generally welded on the pipeline with no flange at the connecting end, and the pipeline without the flange is additionally provided with the flange through a pipeline connecting device or is directly connected with pipeline components such as a tee joint, a valve, an elbow and the like.
The prior art discloses an anti-drop type pipeline connecting device according to the Chinese patent application number 201821094748.2, the technical scheme of the anti-drop type pipeline connecting device comprises a sealing ring, a pressing sleeve positioned at one end of the sealing ring and a connecting sleeve positioned at the other end of the sealing ring, wherein a flange plate for pipeline connection is arranged on the connecting sleeve, the sealing ring comprises an elastic sealing ring and a plurality of metal tooth parts, the metal tooth parts are fixedly arranged on the inner periphery of the elastic sealing ring and are uniformly arranged at intervals along the circumferential direction, the pressing sleeve and the connecting sleeve are connected through a set of bolts, and under the fastening action of the set of bolts, the first ends of the pressing sleeve and the connecting sleeve respectively support against one end of the elastic sealing ring to deform the elastic sealing ring, so that the elastic sealing ring is radially inwards tightened to achieve the locking and fixing effects. However, the metal teeth and the elastic sealing ring in the scheme are integrated, the metal piece is consistent with the radial dimension of the sealing ring in the length direction, the elastic sealing ring cannot be tightly attached to the outer wall of a pipeline at the part with the metal teeth, and the elastic sealing ring cannot form a complete sealing ring, so that the sealing ring has good locking and fastening capability, is poor in sealing effect, is easy to leak water, is less in radial constraint, is extremely easy to generate middle arch phenomenon, affects sealing effect, and is generally exposed outside and is extremely easy to age and lose efficacy.
Disclosure of Invention
The object of the present invention is to provide a pipe connection device with a good sealing effect while ensuring locking and fastening ability.
The invention adopts the following technical scheme that the pipeline connecting device comprises a connecting sleeve and a pressing sleeve which are sleeved on a pipeline to be connected, wherein the connecting sleeve and the pressing sleeve form connection fit for limiting axial separation of the connecting sleeve and the pressing sleeve, an elastic sealing ring is sleeved on the pipeline to be connected at the joint of the pressing sleeve and the connecting sleeve, locking teeth are uniformly embedded in the inner ring of the elastic sealing ring at intervals in the circumferential direction, the inner ring of the elastic sealing ring is provided with a complete sealing ring surface, the elastic sealing ring radially deforms when the pressing sleeve and the connecting sleeve are mutually close, and one end of the connecting sleeve, which is far away from the pressing sleeve, is connected with a pipeline connecting piece or a pipeline part.
In the scheme, the radial contraction of the elastic sealing ring is realized through the mutual approaching of the connecting sleeve and the pressing sleeve, the locking fixation is realized through the locking teeth, and the sealing effect is realized through the complete sealing ring surface, so that the anti-falling capacity and the sealing capacity of the pipeline connecting device are ensured.
Drawings
FIGS. 1, 8, 9, 10, 11, 12, 13 are schematic illustrations of mounting structures of various embodiments of the present invention;
FIGS. 2, 3, 4, 5 are cross-sectional views of four embodiments of the present invention;
FIGS. 6 and 7 are schematic perspective views of elastic sealing rings according to two embodiments of the present invention;
Fig. 14 is a cross-sectional view of fig. 13.
Detailed Description
The utility model provides a pipeline connecting device, including the cover establish the adapter sleeve 10 and press the cover 20 on waiting to take over pipeline 1, adapter sleeve 10 and press the cover 20 to constitute the connection cooperation that restricts both axial separation, elastic sealing ring 30 cover is established on waiting to take over pipeline 1 of cover 20 and adapter sleeve 10 junction, elastic sealing ring 30's inner circle circumference evenly spaced embedding has locking tooth 31, elastic sealing ring 30 inner circle has complete sealed anchor ring, elastic sealing ring 30 radially warp when pressing cover 20 and adapter sleeve 10 are close to each other, the adapter sleeve 10 keeps away from the one end of pressing cover 20 and links to each other with pipeline connecting piece or pipeline spare part.
In the above scheme, radial contraction of the elastic sealing ring 30 is realized by mutually approaching the connecting sleeve 10 and the pressing sleeve 20, locking fixation is realized by the locking teeth 31, sealing effect is realized by the complete sealing ring surface, the anti-falling capability and sealing capability of the pipeline connecting device are ensured, the pipeline connecting piece is generally a connecting flange, the two end faces of the pipeline 1 to be connected are provided with the connector and then are connected with each other through the connecting flange, and the connecting sleeve 10 in the application can also be directly arranged on pipeline parts such as an elbow, a tee joint, a valve and a half joint, and a pipe clamp, so that the number of the connecting pieces is reduced. As shown in fig. 8, in which the connection sleeve 10 itself may be a reducer pipe for connecting pipes of two different diameters.
Annular cavities for accommodating two ends of the elastic sealing ring 30 are respectively formed between the inner rings of the adjacent sides of the pressing sleeve 20 and the connecting sleeve 10 and the outer wall of the pipeline 1 to be connected. Radial positioning is performed on two ends of the elastic sealing ring 30 through the arrangement of the annular cavity, so that excessive expansion and crushing of the elastic sealing ring 30 in the extrusion process are prevented. Meanwhile, the closed environment is favorable for improving the extrusion force to strengthen the sealing and locking effects, and in addition, the two end parts of the elastic sealing ring 30 are positioned in the annular cavity to avoid aging and rust, so that the service life of the elastic sealing ring is prolonged.
The inner rings of the adjacent sides of the pressing sleeve 20 and the connecting sleeve 10 are in a horn mouth shape with large adjacent ends and small deviating ends, the outline of the outer ring of the elastic sealing ring 30 on the side close to the pressing sleeve 20 is consistent with the outline of the inner ring of the pressing sleeve 20, and the outline of the outer ring of the elastic sealing ring 30 on the side close to the connecting sleeve 10 is consistent with the outline of the inner ring of the pressing sleeve 20. The flare shape essentially forms a guide step to convert the axial pressing force portion of the pressing sleeve 20 and the connecting sleeve 10, which are caused to both ends of the elastic sealing ring 30 by approaching each other, into a radial pressing force to drive the elastic sealing ring 30 to radially deform.
The inner rings at the two ends of the elastic sealing ring 30 are in a closed horn shape. After the assembly is completed, a certain gap is reserved between the inner rings at the two ends of the elastic sealing ring 30 and the pipeline to be connected, and a compression space is reserved at the gap, so that the two ends of the elastic sealing ring 30 radially shrink when the connecting sleeve 10 and the pressing sleeve 20 are mutually close, and the sealing effect is enhanced.
In the first embodiment, as shown in fig. 2, the locking teeth 31 are arranged in the middle of the elastic sealing ring 30, the interval between the connecting sleeve 10 and the pressing sleeve 20 is smaller than the axial dimension of the outer ring of the locking teeth 31, and the axial dimension of the inner ring of the locking teeth 31 is smaller than the width of the inner ring of the elastic sealing ring 30. Since the locking teeth 31 made of rigid material block the gap between the connecting sleeve 10 and the pressing sleeve 20, the elastic arching of the elastic sealing ring 30 at the gap during compression is effectively avoided.
In the second embodiment, as shown in fig. 3, the locking teeth 31 are arranged on the half part of the elastic sealing ring 30 close to the pressing sleeve, and the axial dimension of the locking teeth 31 is smaller than the width of the inner ring of the elastic sealing ring 30. This further increases the width of the sealing surface to enhance the sealing effect.
In the third embodiment, as shown in fig. 4, the cross section of the locking tooth 31 is in an "h" shape, and the outer ring of the "h" shape is embedded in the outer ring of the elastic sealing ring 30. The structural strength of the H-shaped outer ring is effectively ensured, and the exposed H-shaped outer ring can effectively resist the gap between the connecting sleeve 10 and the pressing sleeve 20.
In the fourth embodiment, as shown in fig. 5, the cross section of the locking tooth 31 is in a "]" shape, and the outer ring of the "]" shape is embedded into the outer ring of the elastic sealing ring 30. The metal structure of the "]" shape still has a certain compression bending capability, and the biting force of the locking teeth 31 is improved.
The axial dimension of the locking teeth 31/the width of the inner ring of the elastic sealing ring 30=1/3-1/2, so that the sealing surface of the elastic sealing ring 30 is wider, and the sealing effect is better.
The annular sealing ring surface is provided with annular sealing teeth 32, and the locking teeth 31 are made of rigid metal materials. The sealing effect and the locking effect are enhanced.
The connecting sleeve 10 and the pressing sleeve 20 are connected through square neck bolts 40, square holes are formed in the connecting sleeve 10 and the pressing sleeve 20 corresponding to the square neck bolts 40, and locking nuts 41 of the square neck bolts 40 are located on one side away from the connecting sleeve 10. Because the connecting sleeve 10 is generally provided with a flange, a valve and other parts, the space is small, and the operation of a spanner is inconvenient, and the locking nut 41 is arranged on the side of the pressing sleeve 20, so that the bolt can be locked in a larger space.
As shown in fig. 12 and 13, the internal thread of the inner ring of the pressing sleeve 20 is in threaded connection with the external thread of the outer ring at one end of the connecting sleeve 10. Thus, the internal parts can be completely wrapped, and rust or aging of the internal parts can be prevented.
The outer ring of the pressing sleeve 20 is of a regular polygon structure. Facilitating torque application to turn the sleeve 20.
Claims (11)
1. The connecting device for the pipeline comprises a connecting sleeve (10) and a pressing sleeve (20) which are sleeved on the pipeline (1) to be connected, wherein the connecting sleeve (10) and the pressing sleeve (20) form connection fit for limiting axial separation of the connecting sleeve and the pressing sleeve, and the connecting device is characterized in that an elastic sealing ring (30) is sleeved on the pipeline (1) to be connected at the joint of the pressing sleeve (20) and the connecting sleeve (10), locking teeth (31) are uniformly embedded in the inner ring of the elastic sealing ring (30) at intervals in the circumferential direction, the inner ring of the elastic sealing ring (30) is provided with a complete sealing ring surface, the elastic sealing ring (30) deforms radially when the pressing sleeve (20) and the connecting sleeve (10) are close to each other, and one end of the connecting sleeve (10) far away from the pressing sleeve (20) is connected with a pipeline connecting piece or a pipeline part;
The axial dimension of the locking teeth (31) and the width of the inner ring of the elastic sealing ring (30) are 1/3-1/2, annular sealing teeth (32) are arranged on the sealing ring surface, and the locking teeth (31) are made of rigid metal materials.
2. The pipe connecting device according to claim 1, characterized in that annular cavities for accommodating two ends of the elastic sealing ring (30) are respectively formed between the inner rings of the adjacent sides of the pressing sleeve (20) and the connecting sleeve (10) and the outer wall of the pipe (1) to be connected.
3. The pipe connecting device according to claim 1 or 2, wherein the inner rings of the adjacent sides of the pressing sleeve (20) and the connecting sleeve (10) are in a horn shape with large adjacent ends and small deviating ends, the outline of the outer ring of the elastic sealing ring (30) close to the side of the pressing sleeve (20) is consistent with the outline of the inner ring of the pressing sleeve (20), and the outline of the outer ring of the elastic sealing ring (30) close to the side of the connecting sleeve (10) is consistent with the outline of the inner ring of the pressing sleeve (20).
4. The pipe connecting device according to claim 3, wherein the inner rings at the two ends of the elastic sealing ring (30) are in a closed horn shape.
5. The pipe connecting device according to claim 2, wherein the locking teeth (31) are arranged in the middle of the elastic sealing ring (30), the space between the connecting sleeve (10) and the pressing sleeve (20) is smaller than the axial dimension of the outer ring of the locking teeth (31), and the axial dimension of the inner ring of the locking teeth (31) is smaller than the width of the inner ring of the elastic sealing ring (30).
6. The pipe connecting device according to claim 1, wherein the locking teeth (31) are arranged on the elastic sealing ring (30) near the half part of the pressing sleeve, and the axial dimension of the locking teeth (31) is smaller than the width of the inner ring of the elastic sealing ring (30).
7. The pipe connection device according to claim 5 or 6, wherein the cross section of the locking tooth (31) is in the shape of a "I", the outer ring of the "I" being embedded in the outer ring of the elastic sealing ring (30).
8. The pipe connection device according to claim 5 or 6, wherein the cross section of the locking tooth (31) is in the shape of "]", and the outer ring of the "]" is embedded in the outer ring of the elastic sealing ring (30).
9. The pipe connecting device according to claim 1, wherein the connecting sleeve (10) and the pressing sleeve (20) are connected through square neck bolts (40), square holes are formed in the connecting sleeve (10) and the pressing sleeve (20) corresponding to the square neck bolts (40), and locking nuts (41) of the square neck bolts (40) are located on one side away from the connecting sleeve (10).
10. The pipe connecting device according to claim 1, wherein the internal thread of the inner ring of the pressure sleeve (20) is in threaded connection with the external thread of the outer ring of one end of the connecting sleeve (10).
11. The pipe connecting device according to claim 10, wherein the outer ring of the pressure sleeve (20) has a regular polygon structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375165.9A CN112648453B (en) | 2020-11-30 | Pipe connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011375165.9A CN112648453B (en) | 2020-11-30 | Pipe connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112648453A CN112648453A (en) | 2021-04-13 |
| CN112648453B true CN112648453B (en) | 2025-02-25 |
Family
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571630A (en) * | 2018-07-09 | 2018-09-25 | 安徽恒生科技发展集团有限公司 | A kind of run-resistant assembling pipe joint |
| CN214579503U (en) * | 2020-11-30 | 2021-11-02 | 安徽同发设备股份有限公司 | Pipe connection device |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571630A (en) * | 2018-07-09 | 2018-09-25 | 安徽恒生科技发展集团有限公司 | A kind of run-resistant assembling pipe joint |
| CN214579503U (en) * | 2020-11-30 | 2021-11-02 | 安徽同发设备股份有限公司 | Pipe connection device |
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