CN203594797U - Telescopic cylinder power-assisted stop valve - Google Patents
Telescopic cylinder power-assisted stop valve Download PDFInfo
- Publication number
- CN203594797U CN203594797U CN201320812143.3U CN201320812143U CN203594797U CN 203594797 U CN203594797 U CN 203594797U CN 201320812143 U CN201320812143 U CN 201320812143U CN 203594797 U CN203594797 U CN 203594797U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- valve
- servo
- stop valve
- assisted
- 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
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a telescopic cylinder power-assisted stop valve comprising a valve cylinder, a valve rod, a piston, a fixed power-assisted cylinder and a telescopic power-assisted cylinder. One end of the valve rod is connected with the piston, the fixed power-assisted cylinder is arranged in the valve cylinder, and the middle of the valve rod is connected with the telescopic power-assisted cylinder arranged in the fixed power-assisted cylinder in a sleeved mode. The problem that due to overlarge stroke, the stop valve is overhigh, and then manual operation performed on a hand wheel is affected is solved.
Description
Technical field
The utility model relates to a kind of stop valve, relates in particular to a kind of telescopic cylinder power-assisted stop valve.
Background technique
Stop valve claims again pipe valve valve, belongs to forced seal formula valve, so in the time of valve closing, must exert pressure to flap, does not leak with forced seal face.In the time that medium enters valve by flap below, the required resistance overcoming of steering force, is the frictional force of valve rod and filler and the thrust being produced by the pressure of medium, and the power that the force rate of closing valve is opened valve is large, so it is large that the diameter of valve rod is wanted, otherwise can there is the fault of valve rod bending.Be divided into three kinds by Placement: flange connection, screwed connection, be welded to connect.From self-packing valve occurs, the MEDIA FLOW of stop valve enters valve pocket to just changing by flap top, and at this moment, under pressure medium effect, the power of closing valve is little, and it is large to open the power of valve, and the diameter of valve rod can correspondingly reduce.Meanwhile, under medium effect, the valve of this form is also tighter.Once regulation of China's valve " three changes are given ", the flow direction of stop valve, adopts from top to bottom without exception.When stop valve is opened, the Lift of flap, for nominal diameter 25%～30% time, it is maximum that flow has reached, represents that valve has reached fully open position.So the fully open position of stop valve, should be decided by the stroke of flap.
Traditional stop valve exists and makes stop valve excessive height because stroke is excessive, affects the problem of manual operation handwheel.
Model utility content
The purpose of this utility model is just to provide in order to address the above problem a kind of telescopic cylinder power-assisted stop valve.
In order to achieve the above object, the utility model has adopted following technological scheme:
A kind of telescopic cylinder power-assisted stop valve, comprise valve barrel, valve rod, piston, fixing servo-cylinder and flexible servo-cylinder, one end of described valve rod is connected with described piston, described fixing servo-cylinder is arranged in described valve barrel, the middle part of described valve rod is connected with described flexible servo-cylinder, and described flexible servo-cylinder is enclosed within described fixing servo-cylinder.
Particularly, described piston is cast-iron piston, and the upper end of described piston is connected with one end of described valve rod.
Particularly, described flexible servo-cylinder and described fixing servo-cylinder all adopt aluminum alloy cylinder.
The beneficial effects of the utility model are:
The utility model is a kind of telescopic cylinder power-assisted stop valve, has been solved and has been made stop valve excessive height because stroke is excessive by flexible servo-cylinder, affects the problem of manual operation handwheel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model telescopic cylinder power-assisted stop valve.
In figure: 1-valve rod, 2-piston, 3-valve barrel, 4-fixes servo-cylinder, the 5-servo-cylinder that stretches.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model is a kind of telescopic cylinder power-assisted stop valve, comprise valve barrel 3, valve rod 1, piston 2, fixing servo-cylinder 4 and flexible servo-cylinder 5, one end of valve rod 1 is connected with piston 2, fixing servo-cylinder 4 is arranged in valve barrel 3, the middle part of valve rod 1 is connected with flexible servo-cylinder 5, and flexible servo-cylinder 5 is enclosed within fixing servo-cylinder 4.
Piston 2 is cast-iron piston, and the upper end of piston 2 is connected with one end of valve rod 1.
Flexible servo-cylinder 5 and fixing servo-cylinder 4 all adopt aluminum alloy cylinder.
The utility model has been solved and has been made stop valve excessive height because stroke is excessive by flexible servo-cylinder 5, affects the problem of manual operation handwheel, has the value of promoting the use of.
Claims (3)
1. a telescopic cylinder power-assisted stop valve, comprise valve barrel, valve rod and piston, one end of described valve rod is connected with described piston, it is characterized in that: also comprise fixing servo-cylinder and flexible servo-cylinder, described fixing servo-cylinder is arranged in described valve barrel, the middle part of described valve rod is connected with described flexible servo-cylinder, and described flexible servo-cylinder is enclosed within described fixing servo-cylinder, and the external diameter of described flexible servo-cylinder is identical with the internal diameter of described fixing servo-cylinder.
2. a kind of telescopic cylinder power-assisted stop valve according to claim 1, is characterized in that: described piston is cast-iron piston, and the upper end of described piston is connected with one end of described valve rod.
3. a kind of telescopic cylinder power-assisted stop valve according to claim 1, is characterized in that: described flexible servo-cylinder and described fixing servo-cylinder all adopt aluminum alloy cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320812143.3U CN203594797U (en) | 2013-12-12 | 2013-12-12 | Telescopic cylinder power-assisted stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320812143.3U CN203594797U (en) | 2013-12-12 | 2013-12-12 | Telescopic cylinder power-assisted stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594797U true CN203594797U (en) | 2014-05-14 |
Family
ID=50675689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320812143.3U Expired - Fee Related CN203594797U (en) | 2013-12-12 | 2013-12-12 | Telescopic cylinder power-assisted stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110521A (en) * | 2014-06-30 | 2014-10-22 | 浙江美德机械有限公司 | Novel assistant stopper |
-
2013
- 2013-12-12 CN CN201320812143.3U patent/CN203594797U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110521A (en) * | 2014-06-30 | 2014-10-22 | 浙江美德机械有限公司 | Novel assistant stopper |
| CN104110521B (en) * | 2014-06-30 | 2016-08-24 | 浙江美德机械有限公司 | Novel power-assisted cut-off device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203594797U (en) | Telescopic cylinder power-assisted stop valve | |
| CN204647383U (en) | Super large caliber release pollution discharge type one-way sealing gate valve | |
| CN203718092U (en) | Double-seal two-way telescopic loose joint stop valve | |
| CN203214941U (en) | Valve with spring compressing bar | |
| CN105465392B (en) | A kind of valve of quick response | |
| CN203594841U (en) | Hydraulic non-return device | |
| CN203656284U (en) | Muffle check valve | |
| CN202031908U (en) | Fast forward cylinder | |
| CN209483854U (en) | Minitype damper | |
| CN203757025U (en) | Waterproof hammer gate valve | |
| CN204717127U (en) | Refrigeration plant right-angle type stop valve | |
| CN202629099U (en) | Quick block valve | |
| CN203686315U (en) | Self-pressure stop device | |
| CN204533860U (en) | A kind of full copper touches water and moulds stop valve again | |
| CN206206616U (en) | A kind of Lever-type stop valve | |
| CN206320318U (en) | Multifunctional stop valve | |
| CN205896217U (en) | Heavy -calibre hangs down moment of torsion bivalve lamella stop valve | |
| CN206190919U (en) | High performance angie type stop valve | |
| CN106151560B (en) | A kind of wedge action valve | |
| CN202790751U (en) | Novel pressure balance self-operated control valve | |
| CN204312711U (en) | A kind of stop valve | |
| CN203594863U (en) | Assistance type gate valve | |
| CN104896111B (en) | A kind of pilot piston type stop valve for adapting to vertical duct | |
| CN203940083U (en) | Novel power-assisted cut-off device | |
| CN203948684U (en) | A kind of eccentric rotary regulating valve |
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: 20140514 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |