CN202418679U - Novel sealing structure - Google Patents
Novel sealing structure Download PDFInfo
- Publication number
- CN202418679U CN202418679U CN 201120565245 CN201120565245U CN202418679U CN 202418679 U CN202418679 U CN 202418679U CN 201120565245 CN201120565245 CN 201120565245 CN 201120565245 U CN201120565245 U CN 201120565245U CN 202418679 U CN202418679 U CN 202418679U
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- CN
- China
- Prior art keywords
- sleeve
- ring
- sealing structure
- sealing
- spool
- 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 novel sealing structure. The novel sealing structure comprises a sleeve and a valve core which is arranged inside the sleeve; the sleeve and the center of the valve core are coaxial; the sealing structure is characterized in that an inward circular groove is arranged on the outer wall of the valve core; a clamp spring is arranged in the circular groove; a circular lug boss is also arranged on the valve core at the lower part of the circular groove; a slantwise upward circular inclined surface is arranged on the inner wall of the sleeve opposite to the circular lug boss; an opening of a C-shaped ring is downward and is arranged on the circular lug boss; and a retainer ring is arranged between the C-shaped ring and the clamp ring. The novel sealing structure provided by the utility model has simple structure and good sealing effect, is easy to machine and can be used for sealing the valve core and the sleeve which are in frequently relative sliding. The sealing structure is particularly suitable for sealing when fluid with higher temperature is conveyed.
Description
Technical field
The utility model relates to the modulating valve technical field, is specifically related to a kind of novel sealing structure of telescopic modulating valve.
Background technique
It is that the soft seal mode seals that common telescopic modulating valve is utilized in the mode that seal ring is set between spool and the sleeve; This is owing to there is frequent relatively sliding friction between spool and the sleeve; If hard sealing then will damage sealing surface owing to rubbing relatively for a long time, cause leakage.And soft seal is owing to receive the restriction of sealing ring material, and the temperature that makes it bear is limited, and when modulating valve was used to carry the fluid with higher temperature, soft seal then can not meet the demands, and sealing effect weakens, even possibly seal failure.
Summary of the invention
The utility model is accomplished in order to solve deficiency of the prior art; The purpose of the utility model provides a kind of novel sealing structure; Can be used in spool and the frequent sealing of sleeve slide relative, good sealing effect, the sealing when being particularly useful for carrying fluid with higher temperature.
The technological scheme that the utility model addresses the above problem is:
A kind of novel sealing structure comprises sleeve and the spool that is positioned at said sleeve, and said sleeve and said center spool are coaxial, it is characterized in that: be provided with inside annular recess at said spool outer wall, be provided with jump ring in the said annular recess; Also be provided with a ring-type convex on the spool of said annular recess bottom, the sleeve lining at said relatively ring-type convex place forms ring-type inclined-plane obliquely, and the opening of C type circle is located on the said ring-type convex down, between said C type circle and said jump ring, establishes back-up ring.
The novel sealing structure of the utility model is simple in structure, and easy processing can be used in spool and the frequent sealing of sleeve slide relative, good sealing effect, the sealing when being particularly useful for carrying the fluid with higher temperature.
Description of drawings
Fig. 1 is the structural representation according to the novel sealing structure of the utility model.
Description of reference numerals
1... sleeve 2... spool 3... groove 4... jump ring
5... convex 6... inclined-plane 7...C type circle 8... back-up ring
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explain.
As shown in Figure 1, a kind of novel sealing structure of the utility model comprises sleeve 1 and the spool 2 that is positioned at sleeve 1, and sleeve 1 is coaxial with spool 2 centers, is provided with inside annular recess 3 at the spool outer wall, is provided with jump ring 4 in the groove 3; On the spool of the bottom of groove, also be provided with a ring-type convex 5, the sleeve lining at convex place forms ring-type inclined-plane 6 obliquely relatively, forms an incline bench, and the opening of C type circle 7 is located on the convex 5 down, between C type circle 7 and jump ring 4, establishes back-up ring 8.The utility model is placed on C type circle on the convex of spool, utilizes back-up ring to block C type circle, with jump ring it further is fixed on the spool again.
Be to offer incline bench on the inwall of sleeve of straight line in otherwise smooth; The C type circle that the sleeve diameter of incline bench upside should be located greatly and the external diameter sum of spool; Therefore can realize no friction slip between the two, the sleeve diameter of incline bench downside is less than the external diameter sum of C type circle and spool, to realize the sealing of inclined-plane and C type circle; Load onto after the C type circle, C type circle sealing surface only contacts with sleeve ramp.Structure according to the utility model; When not sealing, do not contact between C type circle and the sleeve lining, so just can not have friction; C type circle baroclines on the ring-type inclined-plane of sleeve during sealing; Realize the hard sealing between the metal, friction is very little relatively, makes the C type circle that only is used for static seal originally successfully apply to the sealing that slide relative frequently has sliding friction through such structure and comes.
Above-mentionedly only several kinds of specific embodiments in the utility model are explained; But can not be as the protection domain of the utility model; Every equivalence of having done according to the design spirit in the utility model changes or modifies, and all should think the protection domain that falls into the utility model.
Claims (1)
1. a novel sealing structure comprises sleeve and the spool that is positioned at said sleeve, and said sleeve and said center spool are coaxial, it is characterized in that: be provided with inside annular recess at said spool outer wall, be provided with jump ring in the said annular recess; Also be provided with a ring-type convex on the spool of said annular recess bottom, the sleeve lining at said relatively ring-type convex place forms ring-type inclined-plane obliquely, and the opening of C type circle is located on the said ring-type convex down, between said C type circle and said jump ring, establishes back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120565245 CN202418679U (en) | 2011-12-30 | 2011-12-30 | Novel sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120565245 CN202418679U (en) | 2011-12-30 | 2011-12-30 | Novel sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418679U true CN202418679U (en) | 2012-09-05 |
Family
ID=46743449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120565245 Expired - Fee Related CN202418679U (en) | 2011-12-30 | 2011-12-30 | Novel sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187916A (en) * | 2021-05-27 | 2021-07-30 | 深圳市伙伴气动精密机械有限公司 | Pneumatic throttle valve and application method thereof |
-
2011
- 2011-12-30 CN CN 201120565245 patent/CN202418679U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187916A (en) * | 2021-05-27 | 2021-07-30 | 深圳市伙伴气动精密机械有限公司 | Pneumatic throttle valve and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215000 Suzhou Lake Industrial Park, Xiangcheng District Economic Development Zone, Jiangsu Patentee after: SUZHOU DELAN ENERGY SCIENCE & TECHNOLOGY CORP., LTD. Address before: Cao Hu Industrial Park of Xiangcheng Economic Development Zone, Suzhou City, Jiangsu province 215000 Patentee before: Suzhou Delan Energy Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141230 |
|
| EXPY | Termination of patent right or utility model |