CN203477685U - Seal ring - Google Patents
Seal ring Download PDFInfo
- Publication number
- CN203477685U CN203477685U CN201320575609.2U CN201320575609U CN203477685U CN 203477685 U CN203477685 U CN 203477685U CN 201320575609 U CN201320575609 U CN 201320575609U CN 203477685 U CN203477685 U CN 203477685U
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- CN
- China
- Prior art keywords
- seal ring
- cavity
- pressure
- breach
- flange
- 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.)
- Withdrawn - After Issue
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The utility model discloses a seal ring which comprises a seal ring body. The seal ring body comprises a metal circular ring, wherein the metal circular ring is provided with a gap, and a sliding block is arranged in the gap. The two sides of the gap are further provided with check blocks used for preventing the sliding block from sliding out. A flexible circular ring is arranged on the outer circle of the metal circular ring, wherein an annular cavity is formed inside the flexible circular ring, the cavity is communicated with the gap, and the cavity is filled with gas. According to the structure, after the seal ring is installed, the sliding block will be pushed to move outwards if the intensity of pressure inside a pipeline is increased, the pressure in the cavity will be increased when the sliding block moves outwards, and the pressing force of the seal ring on a flange is increased; if the pressure inside the pipeline is decreased, the sliding block will slide towards the inside of the pipeline, and the pressing force of the seal ring on the flange is decreased. In this way, the pressure of the seal ring on the flange can be changed flexibly according to the intensity of pressure inside the pipeline, and therefore the possibility of leakage is reduced.
Description
Technical field
The utility model relates to seal fitting technical field, relates in particular to seal ring.
Background technique
The joint of existing liquid conducting pipes generally all connects by flange, in order to prevent that seepage is all provided with seal ring in flange inside, but existing seal ring is generally workman to be installed by hand, cause is that people's strength is limited, after installing, be difficult to king-sized impacting force, in use may have caused certain seepage.
Existing seal ring generally can not change because of the variation of internal pipe pressure with regard to having fixed after installing to the impacting force of flange sidewall, low pressure pipeline sealing effect after installing may be good so, but seal ring does not still change the pressure of flange sidewall when this low pressure pipeline discharge pressure becomes large, because internal pressure is too large, seal ring causes seepage to the underpressure of flange sidewall to possibility so.
Summary of the invention
The utility model is not enough for prior art, and seal ring is provided, and this seal ring can improve the pressure of seal ring to flange sidewall after workman installs seal ring in inside, sealing effect is further improved.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: seal ring, comprise seal ring body, described seal ring body comprises a metal cirque, on described metal cirque, be provided with breach, in described breach, be provided with slide block, described breach both sides are also provided with the block that prevents that described slide block from skidding off, described metal cirque outer ring is provided with soft annulus, described soft annulus inside is provided with toroidal cavity, described cavity is communicated with described breach, in described cavity, is filled with gas.If making the pressure increase of pipe interior after installation of sealing circle can promote described slide block by this structure outwards moves, the outside athletic meeting of slide block increases the pressure in cavity, sealing circle is increased the impacting force of flange, if the pressure of pipe interior diminishes, slide block can make sealing circle reduce the impacting force of flange to slip in pipeline again, adopt and make in this way the pressure of sealing circle and flange to change flexibly according to the pressure of pipe interior, thereby reduce the possibility of leaking.
In technique scheme, preferably, on described metal cirque, be also provided with passage, described passage one end connects described breach, the other end connects described cavity, in described cavity, be provided with sodium peroxide, the position of described breach upper channel is less than the thickness of described slide block to the distance of the block in described breach outside, when internal pipe pressure greatly to a certain extent, described slide block can slide into the outermost of breach, now described passage is communicated with pipe interior, water in pipeline will enter in described cavity, sodium peroxide in described cavity with enter water in cavity and react and discharge oxygen, now the air pressure in cavity starts to increase again slide block is promoted passage and being connected of pipeline to block downwards, make like this sealing circle further increase the impacting force of flange, improve sealing effect.
The utility model compared with prior art, there is following beneficial effect: if the utility model pressure increase of pipe interior after installation can promote described slide block, outwards move, the outside athletic meeting of slide block increases the pressure in cavity, sealing circle is increased the impacting force of flange, if the pressure of pipe interior diminishes, slide block can make sealing circle reduce the impacting force of flange to slip in pipeline again, adopt and make in this way the pressure of sealing circle and flange to change flexibly according to the pressure of pipe interior, thereby reduce the possibility of leaking.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment state one.
Fig. 2 is that A-A in Fig. 1 is to sectional view.
Fig. 3 is the sectional view of the utility model embodiment state two.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail: referring to Fig. 1 to Fig. 3, seal ring, comprise seal ring body 1, described seal ring body 1 comprises a metal cirque 11, on described metal cirque 11, be provided with breach 2, in described breach 2, be provided with slide block 3, described breach 2 both sides are also provided with the block 21 that prevents that described slide block 3 from skidding off, described metal cirque 11 outer rings are provided with soft annulus 12, described soft annulus 12 inside are provided with toroidal cavity 121, described cavity 121 is communicated with described breach 2, in described cavity 121, be filled with gas, on described metal cirque 11, be also provided with passage 122, described passage 122 one end connect described breach 2, the other end connects described cavity 121, in described cavity 121, be provided with sodium peroxide 4, the position of described breach 2 upper channels 122 is less than the thickness of described slide block 3 to the distance of the block 21 in described breach 2 outsides.
Because the seal ring impacting force that workman installs by hand is when mounted certain, from external strength extruding, seal ring and flange sidewall pressure are increased is again difficult to, seal ring described in the utility model in use, if the pressure increase of pipe interior can make the current in pipeline enter into described cavity 121 through described breach 2 and described passage 122, water reacts and discharges gas with sodium peroxide 4 in cavity 121, air pressure from the inside increase cavity 121 of seal ring improves the pressure of seal ring to flange sidewall, thereby improves sealing effect.
Claims (2)
1. seal ring, comprise seal ring body (1), it is characterized in that: described seal ring body (1) comprises a metal cirque (11), on described metal cirque (11), be provided with breach (2), in described breach (2), be provided with slide block (3), described breach (2) both sides are also provided with the block (21) that prevents that described slide block (3) from skidding off, described metal cirque (11) outer ring is provided with soft annulus (12), described soft annulus (12) inside is provided with toroidal cavity (121), described cavity (121) is communicated with described breach (2), described cavity is filled with gas in (121).
2. seal ring as claimed in claim 1, it is characterized in that: on described metal cirque (12), be also provided with passage (122), described passage (122) one end connects described breach (2), the other end connects described cavity (121), in described cavity (121), be provided with sodium peroxide (4), the position of described breach (2) upper channel (122) is less than the thickness of described slide block (3) to the distance of the block (21) in described breach (2) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575609.2U CN203477685U (en) | 2013-09-17 | 2013-09-17 | Seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575609.2U CN203477685U (en) | 2013-09-17 | 2013-09-17 | Seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477685U true CN203477685U (en) | 2014-03-12 |
Family
ID=50226016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575609.2U Withdrawn - After Issue CN203477685U (en) | 2013-09-17 | 2013-09-17 | Seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477685U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470890A (en) * | 2013-09-17 | 2013-12-25 | 宁波市镇海声光密封件厂(普通合伙) | Seal ring |
| CN104806866A (en) * | 2015-03-04 | 2015-07-29 | 胡运冲 | Lubricating device of heavy-load automotive rear bridge drive bearing and lubricating method thereof |
| CN109812447A (en) * | 2018-12-20 | 2019-05-28 | 杭州西子泵业有限公司 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose structure |
| CN110553104A (en) * | 2019-08-22 | 2019-12-10 | 李龙明 | Joint leakage-proof pipe |
-
2013
- 2013-09-17 CN CN201320575609.2U patent/CN203477685U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470890A (en) * | 2013-09-17 | 2013-12-25 | 宁波市镇海声光密封件厂(普通合伙) | Seal ring |
| CN103470890B (en) * | 2013-09-17 | 2015-09-09 | 宁波市镇海声光密封件厂(普通合伙) | Seal ring |
| CN104806866A (en) * | 2015-03-04 | 2015-07-29 | 胡运冲 | Lubricating device of heavy-load automotive rear bridge drive bearing and lubricating method thereof |
| CN104806866B (en) * | 2015-03-04 | 2017-08-01 | 姬玉平 | A kind of lubricating arrangement and its lubricating method of heavy－duty automobile axle drive bearing |
| CN109812447A (en) * | 2018-12-20 | 2019-05-28 | 杭州西子泵业有限公司 | A kind of sewage submersible pump pump shaft exempts from corrosion and impeller anti-loose structure |
| CN109812447B (en) * | 2018-12-20 | 2020-07-03 | 杭州西子泵业有限公司 | Corrosion-free pump shaft and impeller anti-loosening structure of sewage submersible pump |
| CN110553104A (en) * | 2019-08-22 | 2019-12-10 | 李龙明 | Joint leakage-proof pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150909 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |