CN203214894U - Stop valve with non-rotatable valve rod - Google Patents
Stop valve with non-rotatable valve rod Download PDFInfo
- Publication number
- CN203214894U CN203214894U CN 201320112282 CN201320112282U CN203214894U CN 203214894 U CN203214894 U CN 203214894U CN 201320112282 CN201320112282 CN 201320112282 CN 201320112282 U CN201320112282 U CN 201320112282U CN 203214894 U CN203214894 U CN 203214894U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- rod
- valve body
- bushing
- 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
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Abstract
The utility model relates to a stop valve with a non-rotatable valve rod. The stop valve comprises a valve body, a hand wheel, a valve rod, a valve rod bushing, a valve rod nut, a packing, a spline bushing, a corrugated pipe, a rear base, a support frame, a valve core and a sealing device, wherein the valve rod is arranged inside the valve body, and the valve core is arranged below the valve rod. The sealing device is arranged between the valve core and the valve body. The upside 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 the valve rod bushing. The valve rod bushing is fixed at the upper end of the valve body. The packing is filled between the valve rod and the valve body. The hand wheel is fixed at the upper end of the valve rod nut. The spline bushing, the corrugated pipe, the rear base and the support frame are arranged at the tail end of the valve rod. The stop valve can be rapidly and simply maintained and overhauled without causing the problem of leakage in a joint or leakage in a welding part so as to be complete in sealing. By adopting the valve structure with the non-rotatable rod, with a spline groove structure, the abrasion of the valve core and the sealing device can be reduced, the sealing completeness is ensured, and the service life of the stop valve is prolonged.
Description
Technical field
The utility model 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, compositions such as spool, and pneumatic or Electric actuator drive valve rod rotation by other, the poppet stem position is to open or throttle down.Constantly open and close during because of valve working make valve rod constantly rotate, and drive spool and constantly rotate rising, so the filler in the valve, seal arrangement wear and tear easily, cause the valve seal poor performance, and the life-span is short.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the utility model 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 adopted in the utility model 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 the valve body seal arrangement is arranged.Stretch out outside the valve body valve rod top, and be connected with Stem Mut.Be connected by valve lever bushing between Stem Mut and the valve body.Valve lever bushing is fixed on the upper end of valve body.Be full of filler between valve rod and the valve body.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 the spline lining, and bellows is between back seat and the supporting frame.
Preferably, the upper end of valve rod is connected with dust cover.
Preferably, valve lever bushing and valve body be by being threaded, and be provided with pad between the two.O type circle is housed between valve lever bushing and the Stem Mut.
Preferably, the filler upper end is pressed with Gland and filler flange, and filler flange is fastened on the valve body by screw rod and nut, and Stem Mut is connected by flat key with handwheel.
Preferably, there are not the problem that reveal the joint or weld is revealed in valve body and valve lever bushing by forging molding, make that sealing is more complete.
The all workpieces of the utility model comprise that filler all is connected with valve rod, take out valve rod and just can take out all working parts in the lump, like this can be quick, and simply keep in repair and maintain.All pressure control sections in valve body and valve lever bushing inside, are surrounded by valve body entirely, and there are not the problem that reveal the joint or weld is revealed in valve body and valve lever bushing by forging molding, make that sealing is more complete.Sylphon seal and packing seal double seal are adopted in the valve upper end, make sealability better.At the valve stem seal place bellows is installed medium and valve stem seal place are thoroughly isolated, reach zero leakage.Adopted the stem structure that has the spline structure; non-rotatable when making valve rod work; can only move up and down; the drive spool moves up and down; the open and close valve does not make valve core rotation, guarantees low warping force; the also wearing and tearing that can protect bellows and spool not to be reversed have prolonged life-span of bellows and spool.
The beneficial effects of the utility model are: adopted bellows and filler double seal, made that the sealing of valve upper end is better, reached zero leakage; Adopt the stem structure that has the spline structure, can reduce the wearing and tearing of spool, bellows and seal arrangement, guaranteed the integrity of its sealing, prolonged life of valve.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Embodiment:
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Give the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
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 the valve body 1 seal arrangement 21 is arranged.Stretch out outside the valve body 1 valve rod 12 tops, and be connected with Stem Mut 10.Be connected by valve lever bushing 11 between Stem Mut 10 and the valve body 1.Valve lever bushing 11 is fixed on the upper end of valve body 1.Be full of filler 16 between valve rod 13 and the valve body 1.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 the spline lining 17, and bellows 23 is between back seat 18 and the supporting frame 19.
The upper end of valve rod 1 is connected with dust cover 8.
Valve lever bushing 11 and valve body 1 be by being threaded, and be provided with pad 12 between the two.O type circle 4 is housed between valve lever bushing 11 and the Stem Mut 10.
Filler 16 upper ends are pressed with Gland 15 and filler flange 14, and filler flange 14 is fastened on the valve body 1 by screw rod 2 and nut 3, and Stem Mut 10 is connected by flat key 6 with handwheel 5.
There are not the problem that reveal the joint or weld is revealed in valve body 1 and valve lever bushing 11 by forging molding, make that sealing is more complete.
Valve rod 13 is provided with the spline structure, makes that valve rod 13 and spool 20 are 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 the 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 there are not the problem that reveal the joint or weld is revealed in valve body 1 and valve lever bushing 11 by casting, makes that sealing is more complete.
Embodiment 4
Its structure is substantially the same manner as Example 1, and just valve lever bushing 11 and valve body 1 be by being threaded, and be provided with seal ring between the two.
More than be the description to the utility model embodiment, by the above-mentioned explanation to the disclosed embodiments, make related domain professional and technical personnel can realize or use the present invention.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the wideest 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 the valve body valve rod top, and be connected with Stem Mut, be connected by valve lever bushing between Stem Mut and the valve body, valve lever bushing is fixed on the upper end of valve body, be full of filler between valve rod and the valve body, 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 the spline lining, and bellows is between back seat and the supporting frame.
2. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, it 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 be by being threaded, and be 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 the 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, and filler flange is fastened on the valve body by screw rod and nut.
6. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, it 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, it 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 |
|---|---|---|---|
| CN 201320112282 CN203214894U (en) | 2013-03-13 | 2013-03-13 | Stop valve with non-rotatable valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320112282 CN203214894U (en) | 2013-03-13 | 2013-03-13 | Stop valve with non-rotatable valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214894U true CN203214894U (en) | 2013-09-25 |
Family
ID=49204433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320112282 Expired - Fee Related CN203214894U (en) | 2013-03-13 | 2013-03-13 | Stop valve with non-rotatable valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048049A (en) * | 2013-03-13 | 2014-09-17 | 苏州科迪流体控制设备有限公司 | Stop valve with irrotational valve rod |
-
2013
- 2013-03-13 CN CN 201320112282 patent/CN203214894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048049A (en) * | 2013-03-13 | 2014-09-17 | 苏州科迪流体控制设备有限公司 | Stop valve with irrotational valve rod |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 |