CN216555455U - Three-eccentric closed valve sealing mechanism - Google Patents
Three-eccentric closed valve sealing mechanism Download PDFInfo
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- CN216555455U CN216555455U CN202123116431.9U CN202123116431U CN216555455U CN 216555455 U CN216555455 U CN 216555455U CN 202123116431 U CN202123116431 U CN 202123116431U CN 216555455 U CN216555455 U CN 216555455U
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Abstract
The utility model relates to a three-eccentric closed valve sealing mechanism which comprises a valve seat, a rubber valve plate and a sealing plate, wherein the valve seat is of an annular structure, the radial section of the valve seat is of a parallelogram structure, the annular outer wall of the valve seat is fixedly and hermetically connected with the inner wall of a valve shell, an annular groove is formed in the middle of the inner wall of the valve seat, one end of the rubber valve plate is embedded into the groove, and the periphery of the sealing plate is embedded into the other end of the rubber valve plate. The valve seat is arranged on the inner wall of the valve, the annular groove is formed in the inner wall of the valve seat, and the rubber valve plate is extruded and clamped into the groove of the valve seat through the external driving mechanism to form a sealing rib during sealing, so that the sealing effect is enhanced; simple structure, preparation convenience, and avoided leading to the poor problem of sealed effect because of machining error.
Description
Technical Field
The utility model relates to the field of valve sealing mechanisms, in particular to a three-eccentric-center sealing mechanism for a closed valve.
Background
At present, sealing surfaces of a closed valve used in civil air defense engineering are mostly planar or cylindrical, the manufacturing and installation requirements of the two types of sealing surfaces are high, and errors are easy to occur during processing of flatness and cylindricity, so that the closing effect is influenced.
Especially for three eccentric airtight valves, its sealed face is the slope structure, appears machining error more easily and leads to the poor problem of sealed effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a three-eccentric hermetic valve sealing mechanism which is used for solving the problem that a sealing plate structure in the prior art is easy to have poor sealing effect due to machining errors.
The utility model provides a three-eccentric closed valve sealing mechanism which comprises a valve seat, a rubber valve plate and a sealing plate, wherein the valve seat is of an annular structure, the radial section of the valve seat is of a parallelogram structure, the annular outer wall of the valve seat is fixedly and hermetically connected with the inner wall of a valve shell, an annular groove is formed in the middle of the inner wall of the valve seat, one end of the rubber valve plate is embedded into the groove, and the periphery of the sealing plate is embedded into the other end of the rubber valve plate.
Furthermore, the middle part of the outer wall of the rubber valve plate is provided with an annular bump, the rubber valve plate is clamped into the groove of the valve seat through the annular bump, and the outer wall of the rubber valve plate is in contact connection with the inner wall of the valve seat.
Furthermore, a plurality of annular grooves are formed in the inner wall of the rubber valve plate, and the periphery of the sealing plate is clamped into the annular grooves.
Further, the number of the annular grooves and the sealing plates is 2-3.
Further, the valve seat comprises two coaxial annular steel plates with the same taper, the two annular steel plates are fixedly connected through welding, and an annular groove with the width of 2mm is formed in the position of the inner wall between the two annular steel plates.
The technical scheme of the utility model has the beneficial effects that:
the valve seat is arranged on the inner wall of the valve, the annular groove is formed in the inner wall of the valve seat, and the rubber valve plate is squeezed and clamped into the groove of the valve seat through the external driving mechanism to form the sealing rib during sealing, so that the sealing effect is enhanced; simple structure, preparation convenience, and avoided leading to the poor problem of sealed effect because of machining error.
Drawings
FIG. 1 is a schematic structural view of a sealing mechanism of a triple eccentric hermetic valve according to the present invention;
FIG. 2 is a schematic view of a valve seat according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-valve seat, 2-rubber valve plate, 3-sealing plate, 4-valve shell, 5-groove and 6-annular bump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the utility model provides a three-eccentric-center sealing mechanism for a closed valve, which comprises a valve seat 1, a rubber valve plate 2 and a sealing plate 3, wherein the valve seat 1 is of an annular structure, the radial section of the valve seat 1 is of a parallelogram structure, as shown in fig. 2, the annular outer wall of the valve seat 1 is fixedly and hermetically connected with the inner wall of a valve shell 4, an annular groove 5 is arranged in the middle of the inner wall of the valve seat 1, one end of the rubber valve plate 2 is embedded into the groove 5, and the periphery of the sealing plate 3 is embedded into the other end of the rubber valve plate 2. When the valve is sealed, the external driving mechanism drives the sealing plate 3 to rotate so as to drive the rubber valve plate 2 to rotate until the periphery of the rubber valve plate 2 is clamped into the groove 5 of the valve seat 1, and the valve is sealed.
The outer wall middle part of rubber valve plate 2 sets up annular lug 6, rubber valve plate 2 blocks into the recess 5 of disk seat 1 through annular lug 6, and the outer wall of rubber valve plate 2 is connected with the inner wall contact of disk seat 1, blocks into the recess 5 of disk seat 1 through annular lug 6, forms an airtight rib, strengthens airtight effect.
Specifically, the inner wall department of rubber valve plate 2 sets up a plurality of ring channels, in this ring channel is gone into to the periphery card of closing plate 3, realize closing plate 3 and rubber valve plate 2's sealing connection, closing plate 3 provides the support for rubber valve plate 2.
Specifically, the number of the annular grooves and the number of the sealing plates 3 are 2-3, the number of the sealing plates 3 can be selected according to requirements, and in the embodiment, 2 sealing plates 3 are selected to be clamped into the inner wall of the rubber valve plate 2.
Specifically, disk seat 1 includes two coaxial and with tapered annular steel sheet, and two annular steel sheets pass through welded fastening and connect, and inner wall department forms 2mm wide annular groove 5 between the two, and during sealed, 2 blocks of rubber valve plate are gone into in this annular groove 5.
In conclusion, the valve seat is arranged on the inner wall of the valve, the annular groove is formed in the inner wall of the valve seat, the rubber valve plate is squeezed and clamped into the groove of the valve seat through the external driving mechanism during sealing to form the sealing rib, and the sealing effect is enhanced; simple structure, preparation convenience, and avoided leading to the poor problem of sealed effect because of machining error.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a three eccentric airtight valve sealing mechanism, its characterized in that includes disk seat, rubber valve plate and closing plate, the disk seat is annular structure, and the radial tangent plane of disk seat is parallelogram structure, the annular outer wall fixed seal of disk seat connects valve shell inner wall, and the middle part of the inner wall of disk seat sets up annular groove, in the one end embedding of rubber valve plate was this recess, the other end of rubber valve plate is embedded in the periphery of closing plate.
2. The triple eccentric hermetic valve sealing mechanism according to claim 1, wherein an annular bump is provided in the middle of the outer wall of the rubber valve plate, the rubber valve plate is clamped into the groove of the valve seat by the annular bump, and the outer wall of the rubber valve plate is in contact connection with the inner wall of the valve seat.
3. The triple eccentric hermetic valve sealing mechanism according to claim 1, wherein a plurality of annular grooves are provided at an inner wall of the rubber valve plate, and an outer periphery of the sealing plate is caught in the annular grooves.
4. A triple eccentric hermetic valve sealing mechanism according to claim 3, wherein the number of the annular grooves and the sealing plates is 2-3.
5. The seal mechanism of claim 1, wherein the valve seat comprises two coaxial ring-shaped steel plates with the same taper, the two ring-shaped steel plates are fixedly connected by welding, and a 2mm wide ring-shaped groove is formed on the inner wall between the two ring-shaped steel plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123116431.9U CN216555455U (en) | 2021-12-08 | 2021-12-08 | Three-eccentric closed valve sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123116431.9U CN216555455U (en) | 2021-12-08 | 2021-12-08 | Three-eccentric closed valve sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555455U true CN216555455U (en) | 2022-05-17 |
Family
ID=81540700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123116431.9U Active CN216555455U (en) | 2021-12-08 | 2021-12-08 | Three-eccentric closed valve sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216555455U (en) |
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2021
- 2021-12-08 CN CN202123116431.9U patent/CN216555455U/en active Active
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