CN215445195U - Lifting check valve conical surface sealing structure with sharp edge valve seat - Google Patents
Lifting check valve conical surface sealing structure with sharp edge valve seat Download PDFInfo
- Publication number
- CN215445195U CN215445195U CN202120013904.3U CN202120013904U CN215445195U CN 215445195 U CN215445195 U CN 215445195U CN 202120013904 U CN202120013904 U CN 202120013904U CN 215445195 U CN215445195 U CN 215445195U
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- CN
- China
- Prior art keywords
- valve
- sharp
- sealing
- conical surface
- seat
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
This novel seal structure that belongs to, concretely relates to disk seat is sharp-edged lift check valve conical surface seal structure. The utility model provides a disk seat is sharp limit's over-and-under type check valve conical surface seal structure, includes valve body and the valve clack of setting in the valve body, and it has the disk seat hole to open on the valve body, and disk seat hole and valve clack form the line seal. This neotype effect that is showing is: because the valve seat hole keeps a sharp edge, the sealing surface of the valve clack still keeps a conical surface, so that the contact between the valve clack and the valve seat is linear sealing, the sealing performance can be ensured without carrying out matched grinding on the valve body and the valve clack, and the interchangeability of parts can be realized; and the novel structure is line sealing, so that the sealing specific pressure is greatly reduced, and the low-pressure sealing performance is facilitated.
Description
Technical Field
This novel seal structure that belongs to, concretely relates to disk seat is sharp-edged lift check valve conical surface seal structure.
Background
The common lifting check valve conical surface sealing structure is shown in figure 1, the conical surface of the valve clack 1 is matched with the conical surface of the valve body 2 to form sealing, the angle of the conical surface of the valve clack 1 is the same as that of the conical surface of the matched part of the valve body 2, and the sealing performance of the valve is realized by means of the tight fit of the two conical surfaces.
The structure has the following defects:
1. due to the influence of machining errors, the angle of the conical surface of the valve clack 1 cannot be completely consistent with that of the valve body 2, the valve clack and the valve body need to be subjected to matched grinding to ensure that the two conical surfaces are completely attached to realize sealing, and interchangeability cannot be realized due to the matched grinding.
2. Because the sealing surface of the valve clack and the valve body is a conical surface annular area, the sealing can be realized only by needing larger sealing specific pressure, and the low-pressure sealing is difficult to realize.
SUMMERY OF THE UTILITY MODEL
The novel content is to prior art's defect, provides a disk seat for sharp limit's over-and-under type check valve conical surface seal structure, and this structure can avoid the influence of conical surface angle machining error, need not the valve clack and can guarantee sealing performance with the paring grinding of valve body to can realize part interchangeability, the new construction can effectively reduce sealed specific pressure simultaneously, realizes the low pressure seal well.
This is novel to realize like this: the utility model provides a disk seat is sharp limit's over-and-under type check valve conical surface seal structure, includes valve body and the valve clack of setting in the valve body, and it has the disk seat hole to open on the valve body, and disk seat hole and valve clack form the line seal.
The tapered sealing structure of the lift check valve with the sharp edge valve seat is characterized in that the valve seat hole keeps the sharp edge.
In the tapered sealing structure of the lift check valve with the sharp edge as described above, the sharp edge of the valve seat hole means that the intersection of the valve seat hole and the valve seat plane is kept in a sharp edge state.
The lifting check valve conical surface sealing structure with the sharp-edged valve seat is characterized in that the sealing surface of the valve clack is still a conical surface.
The conical sealing structure of the lifting check valve with the sharp-edged valve seat has the advantage that the roundness of the size A of the valve seat hole is 6-grade or more in order to ensure the sealing performance.
The tapered sealing structure of the lifting check valve with the sharp-edged valve seat has the advantages that the contact surface of the valve seat hole and the valve clack does not need to be subjected to matched grinding.
The tapered sealing structure of the lifting check valve with the sharp-edged valve seat can ensure that the valve seat hole and the valve clack can be independently replaced and the sealing performance can be still maintained.
This neotype effect that is showing is: because the valve seat hole keeps a sharp edge, the sealing surface of the valve clack still keeps a conical surface, so that the contact between the valve clack and the valve seat is linear sealing, the sealing performance can be ensured without carrying out matched grinding on the valve body and the valve clack, and the interchangeability of parts can be realized; and the novel structure is line sealing, so that the sealing specific pressure is greatly reduced, and the low-pressure sealing performance is facilitated.
Drawings
FIG. 1 shows a tapered sealing structure of a lift check valve.
FIG. 2 shows a tapered sealing structure of a lift check valve with a sharp edge valve seat.
In the figure: 1, valve clack; 2, a valve body; 3. a cone sealing surface; 4. a valve seat bore.
Detailed Description
A valve seat is a sharp-edged lift check valve conical surface sealing structure, a valve seat hole on a valve body keeps a sharp edge and is not designed into a conical surface, and a valve clack sealing surface still keeps the conical surface.
The present application is further described with reference to the accompanying drawings:
as shown in the attached drawing, the valve seat hole on the valve body keeps sharp edges and is not designed into a conical surface, and the valve clack sealing surface still keeps the conical surface.
The roundness of the valve seat hole size A is required to be 6-grade or above precision so as to ensure the sealing performance.
The realization of the novel technical characteristics is that: because the valve seat hole keeps a sharp edge, the sealing surface of the valve clack still keeps a conical surface, so that the contact between the valve clack and the valve seat is linear sealing, the sealing performance can be ensured without carrying out matched grinding on the valve body and the valve clack, and the interchangeability of parts can be realized; and the novel structure is line sealing, so that the sealing specific pressure is greatly reduced, and the low-pressure sealing performance is facilitated.
Claims (6)
1. The utility model provides a disk seat is sharp limit's lift check valve conical surface seal structure, includes valve body (2) and valve clack (1) of setting in valve body (2), and it has disk seat hole (4), its characterized in that to open on valve body (2): the valve seat hole (4) and the valve clack (1) form line sealing;
the valve seat hole (4) keeps sharp edge.
2. The tapered sealing structure of a lift check valve with a sharp-edged seat as claimed in claim 1, wherein: the sharp edge of the valve seat hole (4) is kept, namely, the intersection of the valve seat hole (4) and the valve seat plane is kept in a sharp edge state.
3. The tapered sealing structure of a lift check valve with a sharp-edged seat as claimed in claim 2, wherein: the sealing surface of the valve clack (1) is still a conical surface.
4. The tapered sealing structure of a lift check valve with a sharp-edged seat as claimed in claim 3, wherein: the roundness of the size A of the valve seat hole (4) is 6-grade and above precision so as to ensure the sealing performance.
5. The tapered sealing structure of a lift check valve with a sharp-edged seat as claimed in claim 4, wherein: the contact surfaces of the valve seat hole (4) and the valve clack (1) do not need to be subjected to matched grinding.
6. The tapered sealing structure of a lift check valve with a sharp-edged seat as claimed in claim 5, wherein: the valve seat hole (4) and the valve clack (1) can be replaced independently and still maintain the sealing performance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020111238983 | 2020-10-20 | ||
| CN202011123898 | 2020-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215445195U true CN215445195U (en) | 2022-01-07 |
Family
ID=79681773
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120013904.3U Expired - Fee Related CN215445195U (en) | 2020-10-20 | 2021-01-05 | Lifting check valve conical surface sealing structure with sharp edge valve seat |
| CN202110007248.0A Pending CN114382926A (en) | 2020-10-20 | 2021-01-05 | Lifting check valve conical surface sealing structure with sharp edge valve seat |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110007248.0A Pending CN114382926A (en) | 2020-10-20 | 2021-01-05 | Lifting check valve conical surface sealing structure with sharp edge valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN215445195U (en) |
-
2021
- 2021-01-05 CN CN202120013904.3U patent/CN215445195U/en not_active Expired - Fee Related
- 2021-01-05 CN CN202110007248.0A patent/CN114382926A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN114382926A (en) | 2022-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |