CN204805633U - Sealing plug with gas vent - Google Patents
Sealing plug with gas vent Download PDFInfo
- Publication number
- CN204805633U CN204805633U CN201520349011.0U CN201520349011U CN204805633U CN 204805633 U CN204805633 U CN 204805633U CN 201520349011 U CN201520349011 U CN 201520349011U CN 204805633 U CN204805633 U CN 204805633U
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- CN
- China
- Prior art keywords
- sealing
- plug
- core
- gas
- exhaust passage
- 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
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Abstract
The utility model discloses a sealing plug with gas vent, include the cock body and set up the gas through -hole on the cock body, the gas through -hole internal fixation has a stopper core, stopper core outer fringe and gas through -hole sealing connection, be equipped with the exhaust passage on the stopper core, the outer end of exhaust passage is equipped with gas vent and the sealed head of activity, the sealed head of activity covers the gas vent, the stopper core surface that is equipped with the gas vent is the flat surface, sealed head and level and smooth surfaces to mate contact, the sealed overhead elasticity rib that is equipped with, elasticity rib one end is connected with sealed head, and it is fixed with stopper in -core end that the other end passes the exhaust passage. Through using this application the sealing plug can realize discharging the gaseous outside of isolation region intra -area, nevertheless the external difficult function to the infiltration of isolation region intra -area of air is guaranteed to keep apart the effect and simultaneously, can not damaged the sealing plug.
Description
Technical field
The utility model relates to the sealing plug being provided with relief opening.
Background technique
As everyone knows, existing engineering pipe, pipe fitting in particular for iron skill is steel pipe, in the maintenance process in later stage, need that regular to carry out japanning to body antirust, body is hollow tubular, after first japanning, in maintenance process, inwall japanning is carried out very not easily to already installed body, but only to coated outside, inwall is easy to get rusty under comparatively moist or corrosion-prone environment, from internal damage, body end is arranged sealing plug and inboard wall of tube body isolation can be played corrosion-resistant effect, but the gas in body can expand or shrink due to the change of external temperature, the sealing plug of body end can be tightly connected damage by gas pressure, it is made to lose the function of sealing.Prior art be badly in need of a kind of can the sealing plug of one-way exhaust.
Summary of the invention
The purpose of this utility model is to overcome the defect existed in prior art, provide a kind of can the sealing plug of one-way exhaust.
For achieving the above object, the technical solution of the utility model there is provided a kind of sealing plug being provided with relief opening, comprise cock body and the gas via-hole on cock body is set, described gas via-hole internal fixtion has one to fill in core, described plug core outer rim and gas via-hole are tightly connected, described plug core is provided with exhaust passage, the outer end of described exhaust passage is provided with relief opening and movable sealing head, relief opening covers by described movable sealing head, the described plug wicking surface being provided with relief opening is flat surface, and described sealing head coordinates with flat surface and contacts; Described sealing head is provided with elastic bar, and described elastic bar one end is connected with sealing head, and the other end is fixed through exhaust passage and plug in-core end.By using the sealing plug described in the application that the gas in area of isolation can be realized to discharge, but the function that the air in the external world not easily permeates in area of isolation, ensure that isolation effect is simultaneously, can not damage sealing plug.
As preferably, described sealing head the inner is provided with the elastic emulsion layer strengthening sealing.Such design can enhanced leaktightness effect.Can also grease be applied between latex layer and relief opening, strengthen sealing effect further.
As preferably, described sealing head size is less than gas via-hole size.It is movable in exhaust passage that sealing head is convenient in such design.
Advantage of the present utility model and beneficial effect are: the gas in area of isolation can be realized to discharge by using the sealing plug described in the application, but the function that the air in the external world not easily permeates in area of isolation, ensure that isolation effect simultaneously, can not damage sealing plug.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1, cock body; 2, gas via-hole; 3, core is filled in; 4, exhaust passage; 5, sealing head; 6, elastic bar; 7, elastic emulsion layer.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
As shown in Figure 1, a kind of sealing plug being provided with relief opening, the gas via-hole 2 comprising cock body 1 and arrange on cock body 1, described gas via-hole 2 internal fixtion has one to fill in core 3, and described plug core 3 outer rim and gas via-hole 2 are tightly connected, and described plug core 3 is provided with exhaust passage 4, the outer end of described exhaust passage 4 is provided with relief opening and movable sealing head 5, relief opening covers by described movable sealing head 5, described in be provided with plug core 3 surface of relief opening for flat surface, described sealing head 5 and flat surface coordinate and contact; Described sealing head 5 is provided with elastic bar 6, and described elastic bar 6 one end is connected with sealing head 5, and the other end is fixing with plug core 3 the inner through exhaust passage 4.
Described sealing head 5 the inner is provided with the elastic emulsion layer 7 strengthening sealing.
Described sealing head 5 size is less than gas via-hole 2 size.
In use, sealing plug is designed to round table-like, body end design corresponding sealing consent coordinates, sealing is carried out bonding by sealer, after body end all arranges this sealing plug, seal space will be formed in body, in order to ensure sealing effect, can discharge during gas expansion in body, but during contraction of gas, ambient atmos enters and has corrosion risk, so use the sealing plug of the application, when body internal air pressure increases, gas is by gas via-hole 2, exhaust passage 4 on plug core 3, the sealing head 5 being provided with elastic emulsion film backs down by relief opening, gas is discharged, such guarantee inner and outer air pressure is consistent, sealing plug can not be ejected body because of inner and outer air pressure difference, when but the air pressure in body is low, because sealing head 5 is the connection of sealed type with relief opening under the pulling force effect of elastic bar 6, so gas cannot enter seal space.Because sealing plug and body are that conical surface seal coordinates, so seal space air pressure is less, both combinations are tightr.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing from the front lower of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. one kind is provided with the sealing plug of relief opening, it is characterized in that: comprise cock body and the gas via-hole on cock body is set, described gas via-hole internal fixtion has one to fill in core, described plug core outer rim and gas via-hole are tightly connected, described plug core is provided with exhaust passage, and the outer end of described exhaust passage is provided with relief opening and movable sealing head, and relief opening covers by described movable sealing head, the described plug wicking surface being provided with relief opening is flat surface, and described sealing head coordinates with flat surface and contacts; Described sealing head is provided with elastic bar, and described elastic bar one end is connected with sealing head, and the other end is fixed through exhaust passage and plug in-core end.
2. be provided with the sealing plug of relief opening as claimed in claim 1, it is characterized in that: described sealing head the inner is provided with the elastic emulsion layer strengthening sealing.
3. be provided with the sealing plug of relief opening as claimed in claim 2, it is characterized in that: described sealing head size is less than gas via-hole size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520349011.0U CN204805633U (en) | 2015-05-27 | 2015-05-27 | Sealing plug with gas vent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520349011.0U CN204805633U (en) | 2015-05-27 | 2015-05-27 | Sealing plug with gas vent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805633U true CN204805633U (en) | 2015-11-25 |
Family
ID=54590461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520349011.0U Expired - Fee Related CN204805633U (en) | 2015-05-27 | 2015-05-27 | Sealing plug with gas vent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805633U (en) |
-
2015
- 2015-05-27 CN CN201520349011.0U patent/CN204805633U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160527 |