CN202659943U - Limiting valve seat - Google Patents
Limiting valve seat Download PDFInfo
- Publication number
- CN202659943U CN202659943U CN 201220317838 CN201220317838U CN202659943U CN 202659943 U CN202659943 U CN 202659943U CN 201220317838 CN201220317838 CN 201220317838 CN 201220317838 U CN201220317838 U CN 201220317838U CN 202659943 U CN202659943 U CN 202659943U
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- CN
- China
- Prior art keywords
- valve seat
- spring
- valve
- type
- ring
- 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 - Lifetime
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Abstract
The utility model relates to a limiting valve seat, which comprises a valve body and a valve seat, wherein a sealing ring and a spring are arranged on the valve seat; a limiting ring is arranged on the valve seat along the extension direction of the spring; the sealing ring is made of a rubber material, a plastic material or a graphite material; the spring is a cylindrical helical spring, a disc spring or a wavy spring; and the limiting ring is in a thread type, a clamping spring type or a clamping ring type. The valve seat with the structure has the advantages that a limiting function is added to the extension direction of the spring at the back of the valve seat and applied to a medium inlet end of an open type valve front sealing valve, and the valve seat can be timely separated from a gate, a ball or valve clacks, so zero abrasion is realized, the service life of a valve is prolonged, and economic benefit can be improved.
Description
Technical field
The utility model relates to a kind of valve seat, especially relates to a kind of spacing valve seat.
Background technique
Pipeline list plate valve structure has been utilized valve seat back side spring pre-tightening structure, and the distortion that energy recuperation valve rear support is made a concession because of the pressure medium effect can be used for heavy caliber and high pressure, but can't alleviate wearing and tearing.The expansion valve of petroleum drilling and mining system, the expanding type ball valve in chemical industry field has largely alleviated the wearing and tearing of sealing, but the distortion of can not the recuperation valve rear support making a concession because of the pressure medium effect, is difficult to be applied under the extreme condition such as heavy caliber high pressure power.With industrial development, more and more higher to the requirement in valve working life, some specific occasions, valve even require odd-numbered day switch several thousand times, and be heavy caliber high pressure power.To effective reduction valve wearing and tearing, the requirement that increases the service life will be more and more urgent.
Summary of the invention
The technical scheme in the invention for solving the technical problem is: a kind of spacing valve seat, comprise valve body and valve seat, and valve seat is provided with seal ring and spring, and the valve seat of spring prolonging direction is provided with limited ring.
Further, seal ring is quality of rubber materials or plastic material or graphite material, according to the seal ring of different need for environment unlike materials.
Further, spring is cylindrically coiled spring or dish spring or wavy spring, can adopt different springs according to different needs.
Further, limited ring is thread type or circlip type or clasp type, adopts different limited rings to be suitable for different occasions.
The beneficial effects of the utility model are: this structure valve seat overleaf prolonging direction of spring is provided with limit function, this function is applied to the medium entrance point of sealed valve before the valve of bracing type, valve seat and flashboard, spheroid or flap are in time broken away from, thereby realize zero wearing and tearing, prolong the working life of valve, realize the growth of economic benefit.
Description of drawings
Fig. 1 is the structural representation of the utility model thread type limited ring;
Fig. 2 is the structural representation of the utility model circlip type limited ring;
Fig. 3 is the structural representation of the utility model clasp type limited ring.
Among the figure: 1, valve body 2, valve seat 3, seal ring 4, spring 5, limited ring.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is described in detail:
A kind of spacing valve seat as shown in Figure 1 to Figure 3 comprises valve body 1 and valve seat 2, and valve seat 2 is provided with seal ring 3 and spring 4, and the valve seat 2 of spring 4 prolonging directions is provided with limited ring 5; Seal ring 3 is quality of rubber materials or plastic material or graphite material; Spring 4 is cylindrically coiled spring or dish spring or wavy spring; Limited ring 5 is thread type or circlip type or clasp type.
There are spring 4 compressed energy-storages at this structure valve seat back side, at spring prolonging direction restraining position ring block 5.Because limited ring preloading spring, stressed the strutting of flashboard or spheroid can obtain essential seal pressure, continues the distortion that compression then can the recuperation valve rear support be made a concession under the pressure medium when sealing; Cancel the power that struts of flashboard or spheroid, then automatically shrink under pressure medium, because valve seat is limited, flashboard or spheroid just can in time break away from the sealing surface of valve seat, can realize haveing suffered journey zero wearing and tearing.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (4)
1. a spacing valve seat comprises valve body (1) and valve seat (2), it is characterized in that: described valve seat (2) is provided with seal ring (3) and spring (4), and the valve seat (2) of described spring (4) prolonging direction is provided with limited ring (5).
2. described spacing valve seat according to claim 1, it is characterized in that: described seal ring (3) is quality of rubber materials or plastic material or graphite material.
3. described spacing valve seat according to claim 1, it is characterized in that: described spring (4) is cylindrically coiled spring or dish spring or wavy spring.
4. described spacing valve seat according to claim 1, it is characterized in that: described limited ring (5) is thread type or circlip type or clasp type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317838 CN202659943U (en) | 2012-07-03 | 2012-07-03 | Limiting valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317838 CN202659943U (en) | 2012-07-03 | 2012-07-03 | Limiting valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659943U true CN202659943U (en) | 2013-01-09 |
Family
ID=47454852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220317838 Expired - Lifetime CN202659943U (en) | 2012-07-03 | 2012-07-03 | Limiting valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725811A (en) * | 2017-11-22 | 2018-02-23 | 重庆红江机械有限责任公司 | A kind of double sealing structure flat gate valve |
-
2012
- 2012-07-03 CN CN 201220317838 patent/CN202659943U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725811A (en) * | 2017-11-22 | 2018-02-23 | 重庆红江机械有限责任公司 | A kind of double sealing structure flat gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |