CN202252314U - Sealing element - Google Patents
Sealing element Download PDFInfo
- Publication number
- CN202252314U CN202252314U CN2011203933159U CN201120393315U CN202252314U CN 202252314 U CN202252314 U CN 202252314U CN 2011203933159 U CN2011203933159 U CN 2011203933159U CN 201120393315 U CN201120393315 U CN 201120393315U CN 202252314 U CN202252314 U CN 202252314U
- Authority
- CN
- China
- Prior art keywords
- sealing
- valve rod
- center hole
- sealing element
- annular sealing
- 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 provides a sealing element, belongs to the technical field of machinery, and can be used for solving the problem that a valve rod moves unstably when the existing sealing element is applied in a valve. The sealing element comprises a body with a center hole, wherein at least two annular sealing rings are fixedly arranged on the inner wall of the center hole; and the cross section of the sealing ring is of a semicircle shape. The sealing element has the advantages of good tightness, and the valve rod can move up and down very smoothly and stably.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of Sealing.
Background technique
In the Sealing of existing application on valve; Generally only be provided with an annular sealing ring on the center bore inner wall of Sealing; And the shape of the cross section of its annular sealing ring is generally triangle; The problem of its existence is: because have only an annular sealing ring, valve rod stability in the work of moving up and down is bad, and the play phenomenon can take place.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed the better and valve rod of a kind of sealing effect and has moved up and down more stable Sealing at work.
The purpose of the utility model can realize through following technical proposal: Sealing, comprise body with center hole, and it is characterized in that: be installed with at least two annular sealing rings on the inwall of described center hole, the cross section of said seal ring is semicircle.
In above-mentioned Sealing, described annular sealing ring is two, is separately positioned on 1/3 and 2/3 place of center hole.
In above-mentioned Sealing, described annular sealing ring and body are integral structure.
Compared with prior art, this Sealing has following several advantage:
1, the sealing part is through several seal rings on the center bore inner wall and valve rod contact seal; Rather than whole center bore inner wall face and valve rod contact seal; The motion of valve rod can not receive the very big resistance that receives like this, and it is more smooth and easy to move, and has guaranteed good sealing property simultaneously;
2, at least two of seal rings of sealing part, rather than have two at least with the strong point that is tightly connected of valve rod, and valve rod is more steady when being tightly connected and moving up and down with Sealing like this.
Description of drawings
Fig. 1 is the structural representation of the utility model and valve rod.
Fig. 2 is the structural representation of the utility model.
Among the figure, 1, body; 2, center hole; 3, annular sealing ring; 4, valve rod.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
As illustrated in fig. 1 and 2; This Sealing comprises the body 1 with center hole 2; Be installed with two annular sealing rings 3 on the inwall of center hole 2, annular sealing ring 3 is made of one piece with body 1, and annular sealing ring 3 all is to be made by rubber with body 1; Two annular sealing rings 3 are separately positioned on 1/3 and 2/3 place of center hole 2, and the cross section of seal ring is semicircle.
Be applied in the Sealing on the valve, be set on the valve rod 4, valve rod 4 want on the one hand and Sealing between sealing to get well, because valve rod 4 will move up and down, preferably resistance is not too big in order to avoid move up and down and have some setbacks on the other hand.Extrusion forms good being tightly connected between two annular sealing ring 3 structures in this Sealing and the valve rod 4; Its two annular sealing ring 3 has only 4 contacts of two points and valve rod to be connected to have substituted original whole center hole 2 internal faces to contact with valve rod 4 to be connected; Make when valve rod 4 moves up and down more smooth and easyly, simultaneously to make that also valve rod 4 moves up and down more smooth and easy for annular sealing ring 3 its semicircular cross sections.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (3)
1. Sealing comprises the have center hole body (1) of (2), and it is characterized in that: be installed with at least two annular sealing rings (3) on the inwall of described center hole (2), the cross section of said seal ring is semicircle.
2. Sealing according to claim 1 is characterized in that, described annular sealing ring (3) is two, is separately positioned on 1/3 and 2/3 place of center hole (2).
3. Sealing according to claim 1 and 2 is characterized in that, described annular sealing ring (3) and body (1) are integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203933159U CN202252314U (en) | 2011-10-11 | 2011-10-11 | Sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203933159U CN202252314U (en) | 2011-10-11 | 2011-10-11 | Sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202252314U true CN202252314U (en) | 2012-05-30 |
Family
ID=46113556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203933159U Expired - Fee Related CN202252314U (en) | 2011-10-11 | 2011-10-11 | Sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202252314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
-
2011
- 2011-10-11 CN CN2011203933159U patent/CN202252314U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838452A (en) * | 2017-02-27 | 2017-06-13 | 苏州市鑫渭机电修造有限公司 | A kind of detachable-type sealed part |
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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: 20120530 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |