CN101672410A - Dual-seal stopper - Google Patents
Dual-seal stopper Download PDFInfo
- Publication number
- CN101672410A CN101672410A CN200910035404A CN200910035404A CN101672410A CN 101672410 A CN101672410 A CN 101672410A CN 200910035404 A CN200910035404 A CN 200910035404A CN 200910035404 A CN200910035404 A CN 200910035404A CN 101672410 A CN101672410 A CN 101672410A
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- CN
- China
- Prior art keywords
- stopper
- obturating plug
- dual
- countersunk screw
- seal
- 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.)
- Pending
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Abstract
The invention relates to a dual-seal stopper which can be used for devices such as transformers, radiators, and the like. The stopper is provided with a stopper seat and a countersink bolt, wherein the countersink bolt is penetrated into a screwed hole of the stopper seat; a first sealing ring is arranged between the stopper seat and the countersink bolt; a protecting cover covering the countersink bolt is arranged on the stopper seat, and the protecting cover is connected with the stopper seat through threads; and a second sealing ring is also arranged between the protecting cover and the stopper seat. Because the protecting cover is sleeved on the countersink bolt, the internal countersink bolt and sealing rings are protected against easy damage so as to have long service life. In addition, the sealing ring is also arranged between the protecting cover and the stopper seat, thus the invention has dual seal and good sealing effect and avoids the phenomenon of oil leakage.
Description
Technical field
The present invention relates to a kind of stopper, specifically is a kind of dual-seal stopper that can be used on the devices such as transformer, radiator.
Background technique
Power equipment such as transformer, be used on the header pipe of these parts such as fuel tank of radiator on the transformer and machinery and all need to install stopper, existing stopper mostly is that a countersunk screw is installed in the obturating plug of band counter sink, be provided with seal ring between obturating plug and the countersunk screw, prevent that inner oil leakage from going out.During oil plant, need turn on countersunk screw in periodic replacement, turn in a flash on the one hand, inside has a large amount of oil spurts and goes out, and is splashed to the operator or be difficult to control on the ground on one's body; On the other hand, countersunk screw and seal ring long term exposure are collided easily and are damaged outside, and seal ring is aging easily, causes the life-span to shorten greatly, and sealing effect is poor, and then need often to change seal ring, troublesome poeration.
Summary of the invention
The technical problem to be solved in the present invention is: problem such as troublesome poeration, sealing effect difference when overcoming existing stopper oil extraction provides a kind of dual-seal stopper.
The technical solution adopted for the present invention to solve the technical problems is: a kind of dual-seal stopper, have obturating plug and countersunk screw, countersunk screw penetrates in the tapped hole of obturating plug, be provided with first seal ring between obturating plug and the countersunk screw, obturating plug be provided with a guard shield that covers countersunk screw, guard shield is threaded with obturating plug, also is provided with second seal ring between guard shield and the obturating plug.
Guard shield is shaped as hexahedron shape away from an end of obturating plug, is convenient to the installation and removal of obturating plug and guard shield.
The invention has the beneficial effects as follows: be with guard shield on the countersunk screw, inner countersunk screw and seal ring are protected, and be not fragile, long service life; Seal ring is also arranged between guard shield and the obturating plug in addition, double seal, good sealing effect has been avoided the generation of oil leakage phenomenon.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Wherein: 1. obturating plug, 2. countersunk screw, 3. first seal ring, 4. guard shield, 5. second seal ring.
Embodiment
As shown in Figure 1, a kind of dual-seal stopper, have obturating plug 1 and countersunk screw 2, obturating plug 1 generally is installed on the header pipe as radiator, transformer etc., countersunk screw 2 penetrates in the tapped hole of obturating plug 1, be provided with first seal ring 3 between obturating plug 1 and the countersunk screw 2, obturating plug 1 is provided with a guard shield 4 that covers countersunk screw 2, guard shield 4 is threaded with obturating plug 1, also be provided with second seal ring 5 between guard shield 4 and the obturating plug 2, for the ease of the installation and removal of obturating plug 1 with guard shield 4, guard shield 4 is processed into hexahedron shape away from an end of obturating plug 1.
When oil plant can not re-use, when needing to change oil plant, take off guard shield 4, turn on countersunk screw 2, oil is emitted get final product.
The countersunk screw 2 outer guard shields 4 that are with, the inner countersunk screw 2 and first seal ring 3 are protected, and be not fragile; be provided with second seal ring 5, double seal, good sealing effect in addition between guard shield 4 and the obturating plug 1; even one of them seal ring breaks down, do not influence sealing effect yet.
This dual-seal stopper can be made oil drain plug usefulness, also can make air relief cock and use.When on the radiator that is applied in transformer, this dual-seal stopper is mounted on the header pipe of radiator, doing venting for air relief cock on last header pipe uses, on lower header, be the oil drain plug usefulness of draining the oil, when oiling transformer, air relief cock on the radiator should be opened, when treating that vent hole has oily benefit, again air relief cock be tightened.
Claims (2)
1. dual-seal stopper, have obturating plug (1) and countersunk screw (2), countersunk screw (2) penetrates in the tapped hole of obturating plug (1), be provided with first seal ring (3) between obturating plug (1) and the countersunk screw (2), it is characterized in that: obturating plug (1) is provided with a guard shield (4) that covers countersunk screw (2), guard shield (4) is threaded with obturating plug (1), also is provided with second seal ring (5) between guard shield (4) and the obturating plug (2).
2. dual-seal stopper according to claim 1 is characterized in that: the end away from obturating plug (1) of described guard shield (4) is shaped as hexahedron shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035404A CN101672410A (en) | 2009-09-22 | 2009-09-22 | Dual-seal stopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035404A CN101672410A (en) | 2009-09-22 | 2009-09-22 | Dual-seal stopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101672410A true CN101672410A (en) | 2010-03-17 |
Family
ID=42019760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910035404A Pending CN101672410A (en) | 2009-09-22 | 2009-09-22 | Dual-seal stopper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672410A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565661A (en) * | 2013-10-25 | 2015-04-29 | 赵登东 | Sealing pipe plug |
-
2009
- 2009-09-22 CN CN200910035404A patent/CN101672410A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565661A (en) * | 2013-10-25 | 2015-04-29 | 赵登东 | Sealing pipe plug |
| CN104565661B (en) * | 2013-10-25 | 2017-02-01 | 哈电集团（秦皇岛）重型装备有限公司 | Sealing pipe plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100317 |