CN202971954U - Stop valve with irrotational valve rod - Google Patents
Stop valve with irrotational valve rod Download PDFInfo
- Publication number
- CN202971954U CN202971954U CN 201220670047 CN201220670047U CN202971954U CN 202971954 U CN202971954 U CN 202971954U CN 201220670047 CN201220670047 CN 201220670047 CN 201220670047 U CN201220670047 U CN 201220670047U CN 202971954 U CN202971954 U CN 202971954U
- 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.)
- Expired - Fee Related
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Abstract
A stop valve with an irrotational valve rod comprises a valve body, a hand wheel, a valve rod, a valve rod bushing, a valve rod nut, packing, a spline bushing, a rear seat, a support frame, a valve element and a seal device. The valve rod is arranged inside the valve body, and the valve element is arranged below the valve rod. The seal device is arranged between the valve element and the valve body. The upper portion of the valve rod stretches 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 tail end of the valve rod bushing is provided with the spline bushing, the rear seat and the support frame. The stop valve with the irrotational valve rod can be repaired and maintained fast and easily. The problem of the leakage of connectors and welding portions is avoided, and seal is enabled to be complete. A valve rod valve structure with a spline groove structure is adopted, the abrasion of the valve element and the seal device can be reduced, the completeness of the seal of the stop valve is guaranteed, and the service life of the 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 contain valve body, valve rod, lining, valve gap, filler in the market, the compositions such as spool, and pneumatic or Electric actuator band ovable valve stem 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 the band movable valve plug constantly rotates rising, so the filler in valve, seal arrangement easily wear and tear, and cause the valve seal poor performance, and the life-span is short.
The model utility content
For 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, 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, seal arrangement is arranged.Stretch out outside valve body the valve rod top, and be connected with Stem Mut.Be connected by valve lever bushing between Stem Mut and valve body.Valve lever bushing is fixed on the upper end of valve body.Be full of filler between valve rod and valve body.Handwheel is fixed on the upper end of Stem Mut.The end of valve rod is provided with spline lining, 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, the filler upper end is pressed with Gland and filler flange, and on valve body, Stem Mut is connected by flat key with handwheel filler flange by screw rod and fastening nuts.
Preferably, valve body and valve lever bushing do not exist by forging molding the problem that reveal the joint or weld is revealed, and make sealing more complete.
Preferably, described filler is graphite.
Preferably, described filler is that graphite annulus and/or nickel wire graphite annulus form.
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 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, surrounded by valve body, and valve body and valve lever bushing do not exist by forging molding the problem that reveal the joint or weld is revealed, and make sealing more complete.Adopt non-rotatable valve rod, valve rod can only move up and down when work, and the band movable valve plug moves up and down, and the open and close valve does not make valve core rotation, guarantees low warping force, the wearing and tearing that also can protect spool not reversed.All-sealed structure, lubricated valve rod operation system and Needle bearing coordinate, to guarantee low operational torque.
The beneficial effects of the utility model are: adopted the valve rod valve mechanism with the spline structure, can reduce the wearing and tearing of spool and seal arrangement, guaranteed the integrity of its sealing, extended 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, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Embodiment:
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out clear, intactly description, obviously, described embodiment is only 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, 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, seal arrangement 21 is arranged.Stretch out outside 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 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 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, back seat 18 and supporting frame 19.
For better dustproof, the upper end of valve rod 1 is connected with dust cover 8.
Fastening in order to connect, 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.Filler 16 is comprised of graphite annulus and nickel wire graphite annulus, plays sealing and lubricated effect.
Also can adopt separately as required graphite material or nickel wire graphite.
By forging molding, there is not the problem that reveal the joint or weld is revealed with valve lever bushing 11 in valve body 1, makes sealing more complete.
Valve rod 13 is provided with the 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.
Be more than 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 utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model 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 (9)
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, back seat, supporting frame, spool and seal arrangement; Stretch out outside valve body the valve rod top, and be connected with Stem Mut, be connected by valve lever bushing between Stem Mut and valve body, valve lever bushing is fixed on the upper end of valve body, be full of filler between valve rod and valve body, handwheel is fixed on the upper end of Stem Mut, and the end of valve rod is provided with spline lining, back seat and 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, it 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, 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.
8. the non-rotary stop valve of a kind of valve rod as claimed in claim 1, it is characterized in that: described filler is graphite.
9. the non-rotary stop valve of a kind of valve rod as claimed in claim 1 is characterized in that: described filler is that graphite annulus and/or nickel wire graphite annulus form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670047 CN202971954U (en) | 2012-12-07 | 2012-12-07 | Stop valve with irrotational valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670047 CN202971954U (en) | 2012-12-07 | 2012-12-07 | Stop valve with irrotational valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971954U true CN202971954U (en) | 2013-06-05 |
Family
ID=48513030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220670047 Expired - Fee Related CN202971954U (en) | 2012-12-07 | 2012-12-07 | Stop valve with irrotational valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851207A (en) * | 2012-12-07 | 2014-06-11 | 苏州科迪流体控制设备有限公司 | Stop valve with non-rotating valve rod |
-
2012
- 2012-12-07 CN CN 201220670047 patent/CN202971954U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851207A (en) * | 2012-12-07 | 2014-06-11 | 苏州科迪流体控制设备有限公司 | Stop valve with non-rotating 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 |
Granted publication date: 20130605 Termination date: 20201207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |