CN211010297U - Leakproof seal type fastening bolt assembly - Google Patents
Leakproof seal type fastening bolt assembly Download PDFInfo
- Publication number
- CN211010297U CN211010297U CN201921860897.XU CN201921860897U CN211010297U CN 211010297 U CN211010297 U CN 211010297U CN 201921860897 U CN201921860897 U CN 201921860897U CN 211010297 U CN211010297 U CN 211010297U
- Authority
- CN
- China
- Prior art keywords
- water
- sealing rod
- gasket
- swelling sealing
- swelling
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008961 swelling Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the fastener field, concretely relates to leak protection sealed fastening bolt sub-assembly, including the bolt, cup joint first gasket in proper order from the head to the afterbody on the pole portion of bolt, first water-swelling sealing rod, middle sleeve pipe, second water-swelling sealing rod, second gasket and nut, when first water-swelling sealing rod and second water-swelling sealing rod are in non-inflation state, the external diameter of two water-swelling sealing rods all is less than middle sheathed tube external diameter, has the clearance between first water-swelling sealing rod and middle sleeve pipe and the first gasket, has the clearance between second water-swelling sealing rod and middle sleeve pipe and the second gasket. The utility model discloses set up first chance water inflation sealing rod and second chance water inflation sealing rod, in case leak, meet water inflation sealing rod and will expand, and then play the sealed effect of leak protection.
Description
Technical Field
The utility model belongs to the fastener field, concretely relates to leak protection sealed fastening bolt sub-assembly.
Background
The bolt is widely applied to pipeline connection, and is particularly used for connecting flanges. The existing bolt connection structure does not have good leakage-proof sealing effect and needs to be improved.
SUMMERY OF THE UTILITY MODEL
In order to make up the deficiency of the prior art, the utility model provides a technical scheme of leak protection sealed fastening bolt sub-assembly.
Leak protection sealed fastening bolt sub-assembly, its characterized in that includes the bolt, cup joint first gasket in proper order from the head to the afterbody on the pole portion of bolt, first water-swelling sealing rod, middle sleeve pipe, second water-swelling sealing rod, second gasket and nut, when first water-swelling sealing rod and second water-swelling sealing rod are in non-inflation state, the external diameter of two water-swelling sealing rods all is less than middle sheathed tube external diameter, first water-swelling sealing rod and middle sleeve pipe and first gasket between have the clearance, the second has the clearance between water-swelling sealing rod and middle sleeve pipe and the second gasket.
The leakproof sealed fastening bolt assembly is characterized in that a first sealing ring is arranged between the middle sleeve and the rod part of the bolt.
The leakproof sealed fastening bolt assembly is characterized in that the outer wall of the middle sleeve is sleeved with a second sealing ring.
The leakproof sealing type fastening bolt assembly is characterized in that the first gasket is an elastic gasket.
The leakproof sealing type fastening bolt assembly is characterized in that the second gasket is an elastic gasket.
Compared with the prior art, the utility model discloses set up first water-swelling sealing rod and second water-swelling sealing rod, in case leak, water-swelling sealing rod will expand, and then play the sealed effect of leak protection.
Drawings
FIG. 1 is a schematic cross-sectional view showing a cross-sectional structure of the water-swellable seal of the present invention in a non-swelling state;
fig. 2 is a second schematic view of the cross-sectional structure of the utility model in the use state, at which the water-swelling sealing rod is in the swelling state.
In the figure: bolt 1, first gasket 2, first chance water inflation sealing rod 3, middle sleeve pipe 4, second chance water inflation sealing rod 5, second gasket 6, nut 7, first sealing washer 8, second sealing washer 9, treat connector 10.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, 2, leak protection sealed fastening bolt sub-assembly, including bolt 1, cup joint first gasket 2 from the head to the afterbody in proper order on the pole portion of bolt 1, first water-swelling sealing rod 3, middle sleeve pipe 4, second water-swelling sealing rod 5, second gasket 6 and nut 7, when first water-swelling sealing rod 3 and second water-swelling sealing rod 5 are in non-inflation state, the external diameter of two water-swelling sealing rods 5 all is less than the external diameter of middle sleeve pipe 4, all have the clearance between first water-swelling sealing rod 3 and middle sleeve pipe 4 and the first gasket 2, the second water-swelling sealing rod 5 and middle sleeve pipe 4 and second gasket 6 between all have the clearance.
As the utility model discloses an optimize structure: a first sealing ring 8 is arranged between the middle sleeve 4 and the rod part of the bolt 1. Specifically, corresponding grooves are formed in the inner wall of the middle sleeve 4 and the outer wall of the bolt 1, and the two grooves are enclosed to form a mounting groove for mounting the first sealing ring 8.
As the utility model discloses an optimize structure: the outer wall of the middle sleeve 4 is sleeved with a second sealing ring 9, and specifically, the outer wall of the middle sleeve 4 is provided with a corresponding groove for mounting the second sealing ring 9.
As the utility model discloses an optimize structure: first gasket 2 and second gasket 6 are the elastic gasket, and the elastic gasket can play sealed effect.
During the use, assemble first gasket 2, first water-swelling sealing rod 3, middle sleeve pipe 4 and second water-swelling sealing rod 5, two sealing washers on bolt 1 earlier, install bolt 1 again on treating the mounting hole of connector 10, then install second gasket 6 and nut 7 on the pole portion tail end of bolt 1. In case first meet water inflation sealing rod 3 and meet water inflation, bolt 1's pole portion, middle sleeve pipe 4, treat that the cavity that connector 10 and first gasket 2 four formed is crowded to be full by first meet water inflation sealing rod 3, can play the sealed effect of leak protection, and the sealed effect of leak protection also can be played to the second meet water inflation sealing rod 5 of the same reason.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. Leak protection sealed fastening bolt sub-assembly, its characterized in that includes the bolt, cup joint first gasket in proper order from the head to the afterbody on the pole portion of bolt, first water-swelling sealing rod, middle sleeve pipe, water-swelling sealing rod is met to the second, second gasket and nut, when water-swelling sealing rod is in non-inflation state with the second to first water-swelling sealing rod, the external diameter of two water-swelling sealing rods all is less than middle sheathed tube external diameter, first water-swelling sealing rod and middle sleeve pipe and first gasket have the clearance, the second has the clearance between water-swelling sealing rod and middle sleeve pipe and the second gasket.
2. The leak resistant seal type fastener bolt assembly of claim 1, wherein a first seal is disposed between the intermediate sleeve and the shank of the bolt.
3. The leak resistant seal type fastener bolt assembly of claim 1 wherein the intermediate sleeve is provided with a second seal on its outer wall.
4. The leak resistant seal type fastener bolt assembly of claim 1 wherein the first gasket is a resilient gasket.
5. The leak resistant seal type fastener bolt assembly of claim 1 wherein the second gasket is a resilient gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860897.XU CN211010297U (en) | 2019-10-31 | 2019-10-31 | Leakproof seal type fastening bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921860897.XU CN211010297U (en) | 2019-10-31 | 2019-10-31 | Leakproof seal type fastening bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211010297U true CN211010297U (en) | 2020-07-14 |
Family
ID=71507638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921860897.XU Expired - Fee Related CN211010297U (en) | 2019-10-31 | 2019-10-31 | Leakproof seal type fastening bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211010297U (en) |
-
2019
- 2019-10-31 CN CN201921860897.XU patent/CN211010297U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 |