CN207064680U - A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism - Google Patents
A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism Download PDFInfo
- Publication number
- CN207064680U CN207064680U CN201721028837.2U CN201721028837U CN207064680U CN 207064680 U CN207064680 U CN 207064680U CN 201721028837 U CN201721028837 U CN 201721028837U CN 207064680 U CN207064680 U CN 207064680U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- primary seal
- plate
- ring
- valve
- 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.)
- Active
Links
Landscapes
- Lift Valve (AREA)
Abstract
It the utility model is related to a kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism, valve seat sealing mechanism includes primary seal and the annular extrusion part for extruding primary seal, it is provided with valve seat installation cavity and supplies valve seat along axial-movement to extrude the valve seat movement clearance of annular extrusion, primary seal, which is provided with, is used to be formed opening towards the inclined-plane of the v-shaped structure of annular extrusion part, annular extrusion part is provided with the compressive plane being used for the inclined-plane extrusion fit, it is fashionable when there is medium to enter, valve seat can extrude primary seal by annular extrusion part, respective ramp top pressure on compressive plane and primary seal on annular extrusion part coordinates so that primary seal produces radial deformation, primary seal is further set to be adjacent to sealing with valve body, considerably increase its sealing effectiveness.
Description
Technical field
It the utility model is related to valve field, and in particular to a kind of valve seat sealing mechanism and putting down using the sealing mechanism
Plate gate valve.
Background technology
Flat gate valve is widely used in the fields such as metallurgy, industrial and mineral, water conservancy irrigation, for media such as gas, water body, dust
Close and cut-out, it is the slide-valve that a kind of closure member is flashboard, and its closure member can be single disc or therebetween with strutting
The double disc of mechanism.Traditional flashboard is single disc structure, and the China if Authorization Notice No. is the U of CN 206190938 is practical new
Type patent discloses a kind of regulating valve, including valve base, valve rod and the flashboard moving up and down for being connected to valve rod lower end, valve base
Body is the shell structure with sealed chamber, and valve base includes valve body, bonnet and two valve seats being arranged at left and right sides of flashboard,
Valve base has matrix runner hole, and matrix runner hole includes the valve flowing channel hole being arranged on valve body and the valve being arranged on valve seat
Seat runner hole, valve flowing channel hole is connected with valve seat runner hole.It is all provided with the sealed chamber of valve base at left and right sides of flashboard
There is protective plate, containment envelope is provided with outside protective plate, flashboard is slidably matched with protective plate sealing, and medium will not enter annular seal space
Keying that is interior and having influence on regulating valve.
In order to prevent medium in matrix runner hole from entering in annular seal space, it is necessary to the valve flowing channel hole of valve seat and valve body it
Between sealing mechanism is set, existing sealing mechanism is to set sealing ring mostly, and common sealing ring is in long-term fluid media (medium)
Pressure effect under, its sealing effectiveness is not ideal, and medium can be caused to be leaked in annular seal space and have influence on opening for flat gate valve
Close.
The content of the invention
The purpose of this utility model is to provide a kind of valve seat sealing mechanism, with solve in the prior art valve seat and valve body it
Between sealing effectiveness it is poor the problem of；Meanwhile the purpose of this utility model also resides in and provides a kind of flat board using the sealing mechanism
Gate valve.
To achieve the above object, a kind of valve seat of the present utility model is adopted the following technical scheme that with sealing mechanism：A kind of valve
Seat sealing mechanism, including the primary seal for being arranged between valve seat and valve body and the annular for extruding primary seal are squeezed
Casting die, primary seal are provided with the inclined-plane for being used for forming the v-shaped structure towards annular extrusion part that is open, and annular extrusion part is provided with
For the compressive plane with the inclined-plane extrusion fit.
The primary seal includes the path sealing ring being coaxially set and big footpath sealing ring, path sealing ring and big footpath are close
The inclined-plane for forming the v-shaped structure is relatively set with seal.
Valve seat end plate is provided between the primary seal and valve body, the one side of valve seat end plate is used to connect with valve body top pressure
Touch, the another side of valve seat end plate contacts top pressure with primary seal, and path sealing ring and big footpath sealing ring are radially positioned at annular
The both sides of extrusion, annular extrusion part have axially through gap between path sealing ring and big footpath sealing ring and protrude primary seal
The projecting ends of part, valve seat end plate are provided with the groove for the projecting ends axially movable, and groove forms and supplies annular extrusion
Part is moved along its axis towards primary seal to extrude the extrusion movement clearance of primary seal.
The annular extrusion part includes the first ring flat-plate and the second ring flat-plate, and compressive plane is arranged on the second ring flat-plate, the first ring flat-plate
Secondary seal ring is provided between valve seat, the secondary seal ring has the radially-inwardly inclined domatic wedge to be provided with valve seat
Face is bonded extrusion fit.
Be provided with elastic top-pressure part between first ring flat-plate and the second ring flat-plate, second ring flat-plate with the first ring flat-plate
Mounting groove is provided with top pressure face, elastic top-pressure part includes the disk spring being arranged in mounting groove and floated by butterfly spring
The top pressure block being arranged in mounting groove, top pressure block are oriented to and are installed in mounting groove.
A kind of flat gate valve of the present utility model adopts the following technical scheme that：A kind of flat gate valve, including valve body, in valve body
The valve seat installation cavity for valve seat installation is provided with, sealing mechanism is provided between valve body and valve seat, the sealing mechanism includes master
Seal and the annular extrusion part for extruding primary seal, valve seat installation cavity is interior to be provided with for valve seat along axial-movement with extrusion ring
The valve seat movement clearance of shape extrusion, primary seal, which is provided with, is used for the oblique of the v-shaped structure that formation is open towards annular extrusion part
Face, annular extrusion part are provided with the compressive plane being used for the inclined-plane extrusion fit.
The primary seal includes the path sealing ring being coaxially set and big footpath sealing ring, path sealing ring and big footpath are close
The inclined-plane for forming the v-shaped structure is relatively set with seal.
Valve seat end plate is provided between the primary seal and valve body, the one side of valve seat end plate contacts with valve body top pressure,
The another side of valve seat end plate contacts top pressure with primary seal, and path sealing ring and big footpath sealing ring are radially positioned at annular extrusion
The both sides of part, annular extrusion part have axially through gap between path sealing ring and big footpath sealing ring and protrude primary seal
Projecting ends, valve seat end plate are provided with the groove for the projecting ends axially movable, and groove forms and supplies annular extrusion part edge
Its axis is towards primary seal movement to extrude the extrusion movement clearance of primary seal.
The annular extrusion part includes the first ring flat-plate and the second ring flat-plate, and compressive plane is arranged on the second ring flat-plate, the first ring flat-plate
Be provided with secondary seal ring between valve seat, the secondary seal ring have it is radially-inwardly inclined domatic, valve seat be provided with it is described
The wedge surface of domatic fitting extruding.
Be provided with elastic top-pressure part between first ring flat-plate and the second ring flat-plate, second ring flat-plate with the first ring flat-plate
Mounting groove is provided with top pressure face, elastic top-pressure part includes the disk spring being arranged in mounting groove and floated by butterfly spring
The top pressure block being arranged in mounting groove, top pressure block are oriented to and are installed in mounting groove.
The beneficial effects of the utility model：The setting of valve seat movement clearance ensures that valve seat is movably set in valve seat installation cavity
In, fashionable when there is medium to enter, valve seat can extrude primary seal by annular extrusion part, and the compressive plane on annular extrusion part is close with leading
Respective ramp top pressure on sealing coordinates so that primary seal generation radial deformation, further makes primary seal be adjacent to valve body close
Envelope, considerably increases its sealing effectiveness.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the embodiment one of flat gate valve of the present utility model；
Fig. 2 is the partial enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation of the first ring flat-plate of annular extrusion part；
Fig. 4 is the partial enlarged drawing at B in Fig. 3；
Fig. 5 is the structural representation of big footpath sealing ring；
Fig. 6 is the structural representation of path sealing ring；
Fig. 7 is the structural representation of valve seat end plate；
Fig. 8 is the structural representation of the second ring flat-plate of annular extrusion part；
Fig. 9 is the structural representation of valve seat.
Embodiment
A kind of embodiment one of flat gate valve of the present utility model：As shown in Fig. 1 to Fig. 9, including valve body 1, bonnet 2, valve
Bar 3, be arranged at valve rod 3 lower end flashboard 4 and the drive mechanism that is moved up and down with ovable valve stem 3, be provided with for valve in valve body 1
The valve seat installation cavity of the installation of seat 5, sealing mechanism is provided between valve body 1 and valve seat 5.
Sealing mechanism, as shown in Fig. 2 including primary seal and for extruding the annular extrusion part of primary seal, valve seat peace
It is provided with behaveing affectedly and ensures that the activity of valve seat 4 is set along axial-movement to extrude the valve seat movement clearance 10 of annular extrusion for valve seat 5
It is placed in valve seat installation cavity.Primary seal includes the path sealing ring 8 being coaxially set and big footpath sealing ring 7, path sealing ring 8
On be provided with the first inclined-plane 81, be equipped with the second inclined-plane 71 on big footpath sealing ring 7, the first inclined-plane 81 and the second inclined-plane 71 are formed and opened
Mouth is towards the v-shaped structure of annular extrusion part, and annular extrusion part is provided with the compressive plane 17 being used for respective ramp extrusion fit.Ring
Shape extrusion includes the first ring flat-plate 11 and the second ring flat-plate 6, and compressive plane 17 is arranged on the second ring flat-plate 6, the first ring flat-plate 11 and valve seat 5
Between be provided with secondary seal ring 12.Secondary seal ring 12 have it is radially-inwardly inclined domatic, valve seat 5 be provided with and above-mentioned domatic patch
Close the wedge surface 51 of extruding.There is gap 13 between the ring flat-plate 11 of valve seat 5 and first so that valve seat 5 is by the extruding of secondary seal ring 12 first
Ring flat-plate 11.
Valve seat end plate 9 is provided between second ring flat-plate 6 and valve body 1, the one side of valve seat end plate 9 contacts with the top pressure of valve body 1,
The another side of valve seat end plate 9 contacts top pressure with primary seal, and path sealing ring 8 and big footpath sealing ring 7 are radially positioned at second
The both sides of ring flat-plate 6, the second ring flat-plate 6 have axially through gap between path sealing ring 8 and big footpath sealing ring 7 and protrude primary seal
The projecting ends 18 of part, valve seat end plate 9 are provided with the groove 14 for above-mentioned projecting ends 18 axially movable, and groove 14, which is formed, to be supplied
Annular extrusion part is moved along its axis towards primary seal to extrude the extrusion movement clearance of primary seal.
Elastic top-pressure part, the top with the first ring flat-plate 11 of the second ring flat-plate 6 are provided between first ring flat-plate 11 and the second ring flat-plate 6
Mounting groove is provided with pressure surface, elastic top-pressure part includes the disk spring 16 being arranged in mounting groove and floated by butterfly spring 16
The dynamic top pressure block 15 being arranged in mounting groove, top pressure block 15 are oriented to and are installed in mounting groove.Spiral shell is connected with the bottom land of mounting groove
Bolt 19, ladder hole is provided with top pressure block 15, and ladder hole includes the small-bore section passed through for bolt shank and for accommodating
The large aperture section of bolt head, the step surface of ladder hole are formed for matching somebody with somebody with the cascaded surface block of bolt head and bolt shank
The confined planes of conjunction.Path sealing ring 8, big footpath sealing ring 7 and secondary seal ring 12 are graphite material, are still had at high temperature preferable
Stability.
A kind of embodiment two of flat gate valve of the present utility model, the difference with embodiment one is, is not provided with secondary sealing
Circle, now the direct top pressure of valve seat is on the first ring flat-plate.
A kind of embodiment three of flat gate valve of the present utility model, the difference with embodiment one are that primary seal is resistance to
The rubber seal of high pressure, now primary seal can be integral type structure, rather than split itself and the path that is arranged concentrically is close
Seal and big footpath sealing ring.
A kind of example IV of flat gate valve of the present utility model, the difference with embodiment one are that secondary seal ring is resistance to
The rubber seal of high pressure.
A kind of embodiment of valve seat sealing mechanism and the sealing mechanism in a kind of each embodiment of above-mentioned flat gate valve
Structure is identical, and here is omitted.
Claims (10)
- A kind of 1. valve seat sealing mechanism, it is characterised in that：Including the primary seal for being arranged between valve body and valve seat and For extruding the annular extrusion part of primary seal, primary seal, which is provided with, to be used to form V-arrangement knot of the opening towards annular extrusion part The inclined-plane of structure, annular extrusion part are provided with the compressive plane being used for the inclined-plane extrusion fit.
- 2. valve seat sealing mechanism according to claim 1, it is characterised in that：The primary seal includes being coaxially set Path sealing ring and big footpath sealing ring, be relatively set with path sealing ring and big footpath sealing ring for forming the V-arrangement knot The inclined-plane of structure.
- 3. valve seat sealing mechanism according to claim 2, it is characterised in that：Set between the primary seal and valve body There is valve seat end plate, the one side of valve seat end plate is used to contact with valve body top pressure, and another side and the primary seal of valve seat end plate connect Top pressure is touched, path sealing ring and big footpath sealing ring are radially positioned at the both sides of annular extrusion part, and annular extrusion part has axially logical Cross gap between path sealing ring and big footpath sealing ring and protrude the projecting ends of primary seal, valve seat end plate is provided with described in confession The groove of projecting ends axially movable, groove are formed and moved for annular extrusion part along its axis towards primary seal to extrude master The extrusion movement clearance of seal.
- 4. the valve seat sealing mechanism according to any one of claim 1-3, it is characterised in that：The annular extrusion part bag The first ring flat-plate and the second ring flat-plate are included, compressive plane is arranged on the second ring flat-plate, and secondary seal ring is provided between the first ring flat-plate and valve seat, The secondary seal ring has radially-inwardly inclined domatic to be bonded extrusion fit with the wedge surface that valve seat is provided with.
- 5. valve seat sealing mechanism according to claim 4, it is characterised in that：Between first ring flat-plate and the second ring flat-plate Elastic top-pressure part is provided with, mounting groove, elastic top-pressure part bag are provided with the top pressure face with the first ring flat-plate of second ring flat-plate Include the disk spring being arranged in mounting groove and the top pressure block being arranged in mounting groove that floated by butterfly spring, top pressure block are oriented to It is installed in mounting groove.
- 6. a kind of flat gate valve, including valve body, the valve seat installation cavity for valve seat installation is provided with valve body, between valve body and valve seat It is provided with sealing mechanism, it is characterised in that：The sealing mechanism includes primary seal and the annular for extruding primary seal is squeezed Casting die, interior be provided with of valve seat installation cavity supply valve seat along axial-movement to extrude the valve seat movement clearance of annular extrusion, primary seal Be provided be used for formed opening towards annular extrusion part v-shaped structure inclined-plane, annular extrusion part be provided be used for it is described tiltedly The compressive plane of face extrusion fit.
- 7. flat gate valve according to claim 6, it is characterised in that：The primary seal includes the path being coaxially set The institute for forming the v-shaped structure is relatively set with sealing ring and big footpath sealing ring, path sealing ring and big footpath sealing ring State inclined-plane.
- 8. flat gate valve according to claim 7, it is characterised in that；Valve seat is provided between the primary seal and valve body End plate, the one side of valve seat end plate contact with valve body top pressure, and the another side of valve seat end plate contacts top pressure, path with primary seal Sealing ring and big footpath sealing ring are radially positioned at the both sides of annular extrusion part, and annular extrusion part has axially through path sealing ring Gap and the projecting ends of primary seal are protruded between big footpath sealing ring, valve seat end plate is provided with for the projecting ends along axle To the groove of motion, groove is formed and moved for annular extrusion part along its axis towards primary seal to extrude the extruding of primary seal Part movement clearance.
- 9. according to the flat gate valve any one of claim 6-8, it is characterised in that：The annular extrusion part includes first Ring flat-plate and the second ring flat-plate, compressive plane are arranged on the second ring flat-plate, and secondary seal ring, the pair are provided between the first ring flat-plate and valve seat Sealing ring have it is radially-inwardly inclined domatic, valve seat be provided with and it is described it is domatic be bonded extrude wedge surface.
- 10. flat gate valve according to claim 9, it is characterised in that：Set between first ring flat-plate and the second ring flat-plate Flexible top-pressure part, mounting groove is provided with the top pressure face with the first ring flat-plate of second ring flat-plate, and elastic top-pressure part includes setting The disk spring and the top pressure block being arranged in mounting groove that floated by butterfly spring, top pressure block being placed in mounting groove are oriented to installation In mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721028837.2U CN207064680U (en) | 2017-08-17 | 2017-08-17 | A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721028837.2U CN207064680U (en) | 2017-08-17 | 2017-08-17 | A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064680U true CN207064680U (en) | 2018-03-02 |
Family
ID=61515640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721028837.2U Active CN207064680U (en) | 2017-08-17 | 2017-08-17 | A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985750A (en) * | 2019-12-03 | 2020-04-10 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
-
2017
- 2017-08-17 CN CN201721028837.2U patent/CN207064680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985750A (en) * | 2019-12-03 | 2020-04-10 | 兰州高压阀门有限公司 | Multi-block type valve seat structure for automatic seat-returning pressure regulating valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102734486A (en) | Valve assembly sealing device of low temperature ball valve | |
| CN116104950B (en) | Steam stop valve with combined valve clack | |
| CN207064680U (en) | A kind of valve seat sealing mechanism and the flat gate valve using the sealing mechanism | |
| CN103591307A (en) | Triple eccentric metal hard sealing butterfly valve | |
| CN206668991U (en) | A kind of soft seat butterfly valve of novel sealing structure | |
| CN204437296U (en) | Embedded forging Y type is without bonnet stop valve | |
| CN105065700A (en) | Self-sealing gate valve structure | |
| CN205663897U (en) | Regulation type metal seal butterfly valve | |
| CN102563111A (en) | High-pressure and energy-saving universal type parallel double-valve flap gate valve | |
| CN203202254U (en) | Double-eccentric and bidirectional metallic seal butterfly valve | |
| CN108105394B (en) | Pneumatic stop valve | |
| CN100470103C (en) | Forced sealing control valve | |
| CN105090607A (en) | High-sealing-performance gate valve | |
| CN205896227U (en) | Double -gate board sealing gate valve | |
| CN202001649U (en) | Soft-seal gate valve | |
| CN210510352U (en) | High-safety die forging ball valve | |
| CN204900884U (en) | High sealed small -bore gate valve | |
| CN201096195Y (en) | Strong sealing control valve | |
| CN203743476U (en) | Pollution-free metal membrane seal ball valve | |
| CN202451865U (en) | High-pressure energy-saving general type parallel double disc gate valve | |
| CN207437818U (en) | A kind of hard sealed flat gate valve valve seat of self-adaptation type | |
| CN206338432U (en) | A kind of dual-seal flat gate valve | |
| CN204477330U (en) | A kind of three eccentric metal seal butterfly valve | |
| CN203421204U (en) | Sealing and adjusting ball valve | |
| CN205001540U (en) | Double -gate plate structure of gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |