CN104048049A - Stop valve with irrotational valve rod - Google Patents
Stop valve with irrotational valve rod Download PDFInfo
- Publication number
- CN104048049A CN104048049A CN201310078775.6A CN201310078775A CN104048049A CN 104048049 A CN104048049 A CN 104048049A CN 201310078775 A CN201310078775 A CN 201310078775A CN 104048049 A CN104048049 A CN 104048049A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- valve body
- 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.)
- Pending
Links
- 239000000945 filler Substances 0.000 claims abstract description 22
- 238000005242 forging Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
- F16K1/06—Special arrangements for improving the flow, e.g. special shape of passages or casings
- F16K1/10—Special arrangements for improving the flow, e.g. special shape of passages or casings in which the spindle is inclined to the general direction of flow
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/50—Preventing rotation of valve members
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- 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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a stop valve with an irrotational valve rod. The stop valve comprises a valve rod, a handwheel, the valve rod, a valve rod bush, a valve rod nut, a filler, a spline bush, a corrugated pipe, a back seat, a support frame, a valve element and a sealing device, wherein the valve rod is arranged in the valve body; the valve element is arranged below the valve rod; the sealing device is arranged between the valve element and the valve body; the upper part of the valve rod extends out of the valve body and is connected with the valve rod nut; the valve rod nut is connected with the valve body through a valve rod bush; the valve rod bush is fixed to the upper end of the valve body; the filler is filled between the valve rod and the valve body; the handwheel is fixed to the upper end of the valve rod nut; the tail end of the valve rod is provided with the spline bush, the corrugated pipe, the back seat and the support frame. The stop valve can be quickly and easily maintained; the problem of leakage at a joint or leakage at a welding point is avoided, so that the seal is more complete; a valve structure in which the valve rod is provided with a spline groove structure is adopted, so that the abrasion of the valve element and the sealing device can be reduced, the completeness of the seal is guaranteed and the service life of the valve is prolonged.
Description
Technical field
The present invention relates to a kind of valve mechanism, the non-rotary stop valve of especially a kind of valve rod.
Background technique
Modal stop valve, mainly contains valve body, valve rod, lining, valve gap, filler in the market, the compositions such as spool, and by other, pneumatic or Electric actuator band ovable valve stem rotates, and poppet stem position is to open or throttle down.Constantly open and close during because of valve working, constantly rotate valve rod, and band movable valve plug constantly rotates rising, so the filler in valve, seal arrangement easily wear and tear, and cause valve seal poor performance, and the life-span is short.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides a kind of maintenance, easy maintenance, should not reveal good seal performance, the stop valve that the life-span is long.
For achieving the above object, the technical solution used in the present invention is: the non-rotary stop valve of a kind of valve rod, comprises valve body, handwheel, valve rod, valve lever bushing, Stem Mut, filler, spline lining, bellows, back seat, supporting frame, spool and seal arrangement.The inside of valve body is provided with valve rod, and the below of valve rod is provided with spool.Between spool and valve body, there is seal arrangement.Stretch out outside valve body valve rod top, and be connected with Stem Mut.Between Stem Mut and valve body, by valve lever bushing, be connected.Valve lever bushing is fixed on the upper end of valve body.Between valve rod and valve body, be full of filler.Handwheel is fixed on the upper end of Stem Mut.The end of valve rod is provided with spline lining, bellows, back seat and supporting frame.Back seat is in spline lining, and bellows is between back seat and supporting frame.
Preferably, the upper end of valve rod is connected with dust cover.
Preferably, valve lever bushing and valve body are threaded connection, and are provided with pad between the two.O type circle is housed between valve lever bushing and Stem Mut.
Preferably, filler upper end is pressed with Gland and filler flange, and filler flange is by screw rod and fastening nuts on valve body, and Stem Mut is connected by flat key with handwheel.
Preferably, by forging molding, there is not the problem that reveal joint or weld is revealed in valve body and valve lever bushing, makes sealing more complete.
The all workpieces of the present invention comprise that filler is all connected with valve rod, take out valve rod and just can take out in the lump all working parts, like this can be quick, and simply keep in repair and maintain.All pressure control sections are entirely inner at valve body and valve lever bushing, by valve body, surrounded, and valve body and valve lever bushing, by forging molding, do not exist the problem that reveal joint or weld is revealed, and make sealing more complete.Valve upper end adopts sylphon seal and packing seal double seal, makes sealability better.Bellows is installed at valve stem seal place and can be made medium and valve stem seal place thoroughly isolate, reach zero leakage.Adopted the stem structure with spline structure; non-rotatable while making valve rod work; can only move up and down; band movable valve plug moves up and down; open and close valve, does not make valve core rotation, guarantees low warping force; the wearing and tearing that also can protect bellows and spool not to be reversed, have extended life-span of bellows and spool.
The invention has the beneficial effects as follows: adopted bellows and filler double seal, made the sealing of valve upper end better, reached zero leakage; Adopt the stem structure with spline structure, can reduce the wearing and tearing of spool, bellows and seal arrangement, guaranteed the integrity of its sealing, extended life of valve.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention.
embodiment:
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is carried out to clear, intactly description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Give the embodiment in the present invention, those of ordinary skills, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1,
As shown in Figure 1: the non-rotary stop valve of a kind of valve rod, comprises valve body 1, handwheel 5, valve rod 13, valve lever bushing 11, Stem Mut 10, filler 16, spline lining 17, bellows 23, back seat 18, supporting frame 19, spool 20 and seal arrangement 21.The inside of valve body 1 is provided with valve rod 13, and the below of valve rod 13 is provided with spool 20.Between spool 20 and valve body 1, there is seal arrangement 21.Stretch out outside valve body 1 valve rod 12 tops, and be connected with Stem Mut 10.Between Stem Mut 10 and valve body 1, by valve lever bushing 11, be connected.Valve lever bushing 11 is fixed on the upper end of valve body 1.Between valve rod 13 and valve body 1, be full of filler 16.Handwheel 5 is fixed on the upper end of Stem Mut 10.The end of valve rod 1 is provided with spline lining 17, bellows 23, back seat 18 and supporting frame 19.Back seat 18 is in spline lining 17, and bellows 23 is between back seat 18 and supporting frame 19.
The upper end of valve rod 1 is connected with dust cover 8.
Valve lever bushing 11 is threaded connection with valve body 1, and is provided with pad 12 between the two.O type circle 4 is housed between valve lever bushing 11 and Stem Mut 10.
Filler 16 upper ends are pressed with Gland 15 and filler flange 14, and filler flange 14 is fastened on valve body 1 by screw rod 2 and nut 3, and Stem Mut 10 is connected by flat key 6 with handwheel 5.
By forging molding, there is not the problem that reveal joint or weld is revealed with valve lever bushing 11 in valve body 1, makes sealing more complete.
Valve rod 13 is provided with spline structure, makes valve rod 13 and spool 20 all non-rotatable, and warping force used during operation is lower, the wearing and tearing that also can protect filler 16 appended on spool 20 and valve rod 13 not reversed.
Embodiment 2
Its structure is substantially the same manner as Example 1, and just valve lever bushing 11 is to be connected by flange with valve body 1.
Embodiment 3
Its structure is substantially the same manner as Example 1, and just valve body 1, with valve lever bushing 11 by casting, does not exist the problem that reveal joint or weld is revealed, and makes sealing more complete.
Embodiment 4
Its structure is substantially the same manner as Example 1, and just valve lever bushing 11 is threaded connection with valve body 1, and is provided with seal ring between the two.
Be more than the description to the embodiment of the present invention, by the above-mentioned explanation to the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To these embodiments' multiple modification, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the non-rotary stop valve of valve rod, is characterized in that: comprise valve body, handwheel, valve rod, valve lever bushing, Stem Mut, filler, spline lining, bellows, back seat, supporting frame, spool and seal arrangement; Stretch out outside valve body valve rod top, and be connected with Stem Mut, between Stem Mut and valve body, by valve lever bushing, be connected, valve lever bushing is fixed on the upper end of valve body, between valve rod and valve body, be full of filler, handwheel is fixed on the upper end of Stem Mut, and the end of valve rod is provided with spline lining, bellows, back seat and supporting frame, back seat is in spline lining, and bellows is between back seat and supporting frame.
2. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, is characterized in that: the upper end of described valve rod is connected with dust cover.
3. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, is characterized in that: described valve lever bushing and valve body are threaded connection, and are provided with pad between the two.
4. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, is characterized in that: O type circle is housed between described valve lever bushing and Stem Mut.
5. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, is characterized in that: described filler upper end is pressed with Gland and filler flange, filler flange by screw rod and fastening nuts on valve body.
6. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, is characterized in that: described Stem Mut is connected by flat key with handwheel.
7. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, is characterized in that: described valve body and valve lever bushing are by forging molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078775.6A CN104048049A (en) | 2013-03-13 | 2013-03-13 | Stop valve with irrotational valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310078775.6A CN104048049A (en) | 2013-03-13 | 2013-03-13 | Stop valve with irrotational valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104048049A true CN104048049A (en) | 2014-09-17 |
Family
ID=51501278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310078775.6A Pending CN104048049A (en) | 2013-03-13 | 2013-03-13 | Stop valve with irrotational valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104048049A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508720A (en) * | 2016-01-14 | 2016-04-20 | 北京市阀门总厂股份有限公司 | Corrugated pipe stop valve for photo-thermal electricity generation fused salt |
| CN105587875A (en) * | 2014-10-24 | 2016-05-18 | 江苏神通阀门股份有限公司 | Corrugated pipe stop valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339825Y (en) * | 1998-05-18 | 1999-09-22 | 曹发君 | Sealing type stop-valve for corrugated pipe |
| CN2871988Y (en) * | 2005-12-20 | 2007-02-21 | 金克雨 | Cut-off valve of bellows |
| CN202091526U (en) * | 2011-05-25 | 2011-12-28 | 氟络塞尔特种阀门(苏州)有限公司 | Stop valve with unrotatable valve rod |
| CN203214894U (en) * | 2013-03-13 | 2013-09-25 | 苏州科迪流体控制设备有限公司 | Stop valve with non-rotatable valve rod |
-
2013
- 2013-03-13 CN CN201310078775.6A patent/CN104048049A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339825Y (en) * | 1998-05-18 | 1999-09-22 | 曹发君 | Sealing type stop-valve for corrugated pipe |
| CN2871988Y (en) * | 2005-12-20 | 2007-02-21 | 金克雨 | Cut-off valve of bellows |
| CN202091526U (en) * | 2011-05-25 | 2011-12-28 | 氟络塞尔特种阀门(苏州)有限公司 | Stop valve with unrotatable valve rod |
| CN203214894U (en) * | 2013-03-13 | 2013-09-25 | 苏州科迪流体控制设备有限公司 | Stop valve with non-rotatable valve rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587875A (en) * | 2014-10-24 | 2016-05-18 | 江苏神通阀门股份有限公司 | Corrugated pipe stop valve |
| CN105508720A (en) * | 2016-01-14 | 2016-04-20 | 北京市阀门总厂股份有限公司 | Corrugated pipe stop valve for photo-thermal electricity generation fused salt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140917 |