CN204344939U - A kind of high-pressure stop valve - Google Patents
A kind of high-pressure stop valve Download PDFInfo
- Publication number
- CN204344939U CN204344939U CN201420771980.0U CN201420771980U CN204344939U CN 204344939 U CN204344939 U CN 204344939U CN 201420771980 U CN201420771980 U CN 201420771980U CN 204344939 U CN204344939 U CN 204344939U
- Authority
- CN
- China
- Prior art keywords
- valve
- flat key
- valve rod
- pressing sleeve
- filler
- 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
Abstract
The utility model belongs to valve, a kind of high-pressure stop valve, the upper end round nut (19) being included in Stem Mut (16) fixes a handwheel (18), the flap (2) that valve rod (4) lower end is equipped with, and it is characterized in that being connected with flap (2) at the lower end of valve rod (4) flat key one (3); The middle part of valve rod (4) is connected with filler pressing sleeve (9) with flat key two (5), and space washer (10) is equipped with in the upper end of filler pressing sleeve (9), and lower space washer (8) is equipped with in the lower end of filler pressing sleeve (9); Filler (7) is equipped with the filler pressing sleeve (9) of opposite opened above, is provided with the flat key guide groove (9-1) of dress flat key two (5) in filler pressing sleeve (9).This invention good seal performance, does not leak, and save material, cost is low, and dismounting is fast easy to maintenance, flexible operation.
Description
Technical field
The invention belongs to valve, particularly a kind of high-pressure stop valve.
Background technique
Valve is the flow of streaming flow in confinement tube, the element of pressure.Be divided into according to application purpose difference and cut off class valve and regulate class valve etc.Cut off class valve and be used as the flowing of cut-out fluid, usually have gate valve, stop valve, ball valve etc.Gate valve body two ends are the entrance and exit of fluid, enter, outlet end is generally flange or be welded to connect.Valve inner is containing space, arranges closedown flashboard in containing space, and containing space two ends arrange seam, stop portion melting welding valve seat.Flashboard adopts T-shaped or alternate manner to be connected as closure member and valve rod head, and the T-shaped screw thread on valve rod top is connected with Stem Mut, and handwheel installed by Stem Mut.Rotate handwheel, close flashboard and produce ascending, descending campaign with valve rod, gate valve is opened or closes.The another kind of cutting-off valve often adopted is stop valve.The valve body two ends of stop valve are fluid input and outlet, and enter, go out end and be generally flange or butt welding and connect, small-bore also can be SOCKET WELDING.Usually arrange seal valve seat at horizontal center line upper area in valve body, the sealed member on valve seat top is flap, and flap top is connected with valve rod, and valve stem seal place generally adopts packing seal.Valve rod top is connected with handwheel, and during rotation hand wheel, flap produces ascending, descending campaign with valve rod, forms unlatching or the closedown of stop valve.Existing similar valve is equipped with valve gap, and the connection of valve gap and valve body adopts flange, screw thread or inner pressuring sealing structure usually, and Sealing is pad.This structure not only makes body size excessive, and when pad lost efficacy or seal pressure is not enough, generation is leaked by its joint.Part is many, and expense of taking a lot of work is expected, maintenance dismounting trouble.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, advocate a kind of valve gap cancelling existing similar valve and arrange, thoroughly solve the leakage hidden danger of valve body and valve gap joint, labor and material saving, keep in repair easy accessibility a kind of high-pressure stop valve.
Technical solution problem of the present invention, the technological scheme adopted is: a kind of high-pressure stop valve, and the upper end round nut being included in Stem Mut fixes a handwheel, it is characterized in that being connected with flap at the lower end of valve rod flat key one; Valve rod upper end is threaded with Stem Mut, and the upper lower shoulder of Stem Mut is equipped with needle roller thrust bearing; The middle part of valve rod is connected with filler pressing sleeve with flat key two; Space washer is equipped with in the upper end of filler pressing sleeve, and lower space washer is equipped with in the lower end of filler pressing sleeve; Flap is equipped with in valve rod lower end; Upper seal support and filler are all contained in an overall valve body cavity, and the filler pressing sleeve of opposite opened is housed above filler, are provided with the flat key guide groove of dress flat key two in filler pressing sleeve; The top of flap is provided with U-shaped hole, is also provided with keyway flat key one and is fixed on valve rod by flap; The bell mouth angle of upper seal support lower end is 95
°~ 100
°,the angle of the boss shoulder of valve rod lower end is 90 °, takes linear sealing.
The invention has the beneficial effects as follows: this invention good seal performance, do not leak, save material, cost is low, and dismounting is fast easy to maintenance, flexible operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, illustrate with embodiment.
Fig. 1 is a kind of thematic map of high-pressure stop valve;
Fig. 2 is each component dismounting figure of Fig. 1;
Fig. 3 is the erection drawing of Fig. 1;
Fig. 4 is the flap part subjectivity figure of Fig. 1;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is valve rod, the assembling partial enlarged drawing of flap in valve body chamber of Fig. 1.
In figure: 1-valve body; 2-flap; 2-1-U shape hole; 2-2-keyway; 3-flat key one; 4-valve rod; 4-1-boss; 5-flat key two; 6-upper seal support; 7-filler; Space washer under 8-; 9-filler pressing sleeve; 9-1-flat key guide groove; The upper space washer of 10-; 11-hold-down grid; 12-pressing plate stud; 13-panel nut; 14-needle roller thrust bearing; 15-flat key three; 16-Stem Mut; 17-bearing gland; 18-handwheel; 19-round nut.
Embodiment
Embodiment, with reference to accompanying drawing, a kind of high-pressure stop valve, the upper end round nut 19 being included in Stem Mut 16 fixes a handwheel 18, be fixedly connected with flat key 17 between Stem Mut 16 with handwheel 18, filler pressing sleeve 9 is equipped with hold-down grid 11 above, and hold-down grid 11 pressing plate stud 12 is fixedly connected with valve body 1 with panel nut 13; Valve rod 4 upper end is threaded with Stem Mut 16, and the upper lower shoulder of Stem Mut 16 is equipped with needle roller thrust bearing 14, and needle roller thrust bearing 14 is equipped with bearing gland 17 above; Upper seal support 6 and filler 7 are all contained in overall valve body 1 cavity, and the flap 2 that valve rod 4 lower end is equipped with, is characterized in that being connected with flap 2 at the lower end of valve rod 4 flat key 1; The middle part of valve rod 4 is connected with filler pressing sleeve 9 with flat key 25, and space washer 10 is equipped with in the upper end of filler pressing sleeve 9, and lower space washer 8 is equipped with in the lower end of filler pressing sleeve 9; Filler 7 is equipped with the filler pressing sleeve 9 of opposite opened above, is provided with the flat key guide groove 9-1 of dress flat key 25 in filler pressing sleeve 9.The top of flap 2 is provided with U-shaped hole 2-1 and keyway 2-2, is fixed on valve rod 4 with flat key 1 by flap 2; The bell mouth angle of upper seal support 6 lower end is α, α=100
°,the angle of the boss 4-1 shoulder of valve rod 4 lower end is 90 °, and the horn mouth of upper seal support 6 lower end and the boss 4-1 shoulder of valve rod 4 lower end are line contact sealing.
Design principle of the present invention is: valve body 1 takes overall structure, does not establish valve gap, reduces and leaks hidden danger, saves material and processing charges, simply easy to maintenance, can all parts of disposable dismounting.Carry out on-line maintenance to valve body 1 not need to take off from pipeline.Flap 2 is provided with keyway 2-2, prevents flap 2 from rotating, and avoids the rotation due to flap 2 to contact with valve body 1 sealing surface damaging valve body 1 and flap 2, extends the working life of valve.Filler pressing sleeve 9 is designed to opposite opened, is provided with flat key guide groove 9-1, is connected with flat key 25 with valve rod 4, prevents valve rod 4 from rotating.On Stem Mut 16, lower shoulder is equipped with needle roller thrust bearing 14, reduces surface friction drag, reduces operation moment of torsion, makes valve switch light and flexible.The bell mouth angle of upper seal support 6 lower end is α, α=95
°~ 100
°, the boss 4-1 upper shoulder angle on valve rod 4 is 90
°, when contacting, become linear sealing mechanism, sealing effect is better.As long as two angle differences, are right.
Valve operation is simple, rotates handwheel 18 and gets final product switch valve.
Claims (3)
1. a high-pressure stop valve, the upper end round nut (19) being included in Stem Mut (16) fixes a handwheel (18), be fixedly connected with flat key (17) between Stem Mut (16) with handwheel (18), filler pressing sleeve (9) is equipped with hold-down grid (11) above, and hold-down grid (11) pressing plate stud (12) is fixedly connected with valve body (1) with panel nut (13); Valve rod (4) upper end is threaded with Stem Mut (16), and the upper lower shoulder of Stem Mut (16) is equipped with needle roller thrust bearing (14), and needle roller thrust bearing (14) is equipped with bearing gland (17) above; Upper seal support (6) and filler (7) are all contained in overall valve body (1) cavity, and the flap (2) that valve rod (4) lower end is equipped with, is characterized in that being connected with flap (2) at the lower end of valve rod (4) flat key one (3); The middle part of valve rod (4) is connected with filler pressing sleeve (9) with flat key two (5), and space washer (10) is equipped with in the upper end of filler pressing sleeve (9), and lower space washer (8) is equipped with in the lower end of filler pressing sleeve (9); Filler (7) is equipped with the filler pressing sleeve (9) of opposite opened above, and filler pressing sleeve (is provided with the flat key guide groove (9-1) of dress flat key two (5) in 9.
2. a kind of high-pressure stop valve according to claim 1, is characterized in that the top of flap (2) is provided with U-shaped hole (2-1) and keyway (2-2), is fixed on valve rod (4) by flap (2) with flat key one (3).
3. a kind of high-pressure stop valve according to claim 1, is characterized in that the bell mouth angle of upper seal support (6) lower end is α, α=95
°~ 100
°,the angle of boss (4-1) shoulder of valve rod (4) lower end is 90 °; The horn mouth of upper seal support (6) lower end and boss (4-1) shoulder of valve rod (4) lower end are line contact sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771980.0U CN204344939U (en) | 2014-12-10 | 2014-12-10 | A kind of high-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771980.0U CN204344939U (en) | 2014-12-10 | 2014-12-10 | A kind of high-pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344939U true CN204344939U (en) | 2015-05-20 |
Family
ID=53228208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420771980.0U Expired - Fee Related CN204344939U (en) | 2014-12-10 | 2014-12-10 | A kind of high-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534106A (en) * | 2014-12-10 | 2015-04-22 | 营口埃斯威特阀门有限公司 | High-pressure stop valve |
| CN110966412A (en) * | 2019-12-23 | 2020-04-07 | 严涛 | High-temperature high-pressure parallel sliding valve |
-
2014
- 2014-12-10 CN CN201420771980.0U patent/CN204344939U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534106A (en) * | 2014-12-10 | 2015-04-22 | 营口埃斯威特阀门有限公司 | High-pressure stop valve |
| CN110966412A (en) * | 2019-12-23 | 2020-04-07 | 严涛 | High-temperature high-pressure parallel sliding valve |
| CN110966412B (en) * | 2019-12-23 | 2021-07-20 | 严涛 | High-temperature high-pressure parallel sliding valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |