CN2190206Y - Low torque plug valve - Google Patents
Low torque plug valve Download PDFInfo
- Publication number
- CN2190206Y CN2190206Y CN 93226652 CN93226652U CN2190206Y CN 2190206 Y CN2190206 Y CN 2190206Y CN 93226652 CN93226652 CN 93226652 CN 93226652 U CN93226652 U CN 93226652U CN 2190206 Y CN2190206 Y CN 2190206Y
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- CN
- China
- Prior art keywords
- seat
- application
- force
- stressed
- plug shaft
- 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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- Taps Or Cocks (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a plug valve which comprises a valve body, a valve cover and a plug which comprises a plug shaft and a stopper, wherein, the stopper forms a conical body shape, a matching surface matched with the conical body-shaped stopper is arranged in the valve body, the partial plug shaft extends out of the valve cover, and a revolving operating mechanism and a reducing operating torque moment mechanism are arranged on the plug shaft. The mechanism comprises a compression spring, a force applying seat and a force supporting seat which are orderly positioned on the plug shaft. The force applying seat directly contacts the force supporting seat in a frictional mode, or the force applying seat contacts the force supporting seat in a frictional mode through a middle rolling body. The revolving operating mechanism and the force applying seat are integral. The force supporting seat and the plug are integral. The utility model has the advantages that the valve can be successfully opened, the structure is simple, the operation is convenient, the operating automation is easily realized, etc.
Description
The relevant stopcock of the utility model, especially relevant low torque stopcock.
Stopcock is because of its simple structure, easy to operate and cost easy to manufacture is low, thereby extensively welcome as Fluid valve.Yet in the ordinary course of things, stopcock is big because of its torque, and is difficult to realize automation mechanized operation, thereby hinders its more extensive being utilized, and for example still fails both at home and abroad the operation automation problem of fine solution stopcock so far.
China utility model patent CN85200677U " rise-fall type stopcock " also attempts to propose a kind of measure that reduces the cock torque, and this measure is utilized as the cammingly leverage that stopper is promoted, and reaches the purpose that reduces torque.Yet the major defect of this structure is the revolution operation that need carry out both direction, and not only manually-operable is still not very convenient, and also is difficult to realize automation mechanized operation.
Therefore, the utility model purpose be to provide have the mechanism that can obviously reduce torque, simple structure, easy to operate low torque stopcock.
According to the utility model low torque stopcock, comprise valve body and valve gap part as static part, with cock as moving element, described cock is made up of the plug shaft portion and the stopper that form one, the part of described plug shaft portion is partly stretched out from valve gap, described stopper has frustoconical shape, has the fluid port on it, on described valve body, form the fitting surface that can cooperate with stopper, in addition, the mechanism of revolution operation cock is installed and for reducing the mechanism of this operation torque on plug axle, the mechanism of this minimizings operation torque comprises and is positioned at the plug axle and goes up the pressure spring at nearly stopper end place, is positioned at the application of force seat of this spring top and stressed.Form rubbing contact between application of force seat and stressed seat, make described revolution operating device and application of force seat form one, stressed seat and cock form one, in addition, sealing component and rolling bearing are set between described static component and moving link respectively.
Below, with reference to accompanying drawing the utility model embodiment is described.
Fig. 1 schematically illustrates the utility model embodiment general structure,
Fig. 2 schematically illustrates embodiment's major component structure of the minimizing operation torque mechanism of stopcock shown in Figure 1,
It is another embodiment's major component structure that Fig. 3 schematically illustrates structure shown in Figure 2 relatively,
In above-mentioned each figure, identical label is represented identical or same parts.
Now referring to Fig. 1,8 is valve body, constitute cock by plug shaft portion 6 and stopper 7, the part of plug shaft portion 6 is stretched out from valve gap part 10, stopper 7 has frustoconical shape, has the fluid port on it, has the fitting surface that matches with the conical surface of stopper 7 on the valve body 8, on plug shaft portion 6, be positioned at the pressure spring 1 of nearly stopper 7 one ends successively, be positioned at the application of force seat 3 and the stressed seat 5 of spring 1 top, application of force seat 3 is positioned at the below of stressed seat 5, application of force seat 3 and stressed seat 5 directly or by rolling element 4 form rubbing contact between the two, make cock swirl gear 9(in the present embodiment for rotary handle) and application of force seat 3 fuse, in addition, at corresponding site sealing component 11 and rolling bearing 2 are set respectively as 10 of the valve gap parts of the plug shaft portion 6 of moving element and stationary part.
Now simultaneously referring to Fig. 1 and Fig. 2, Fig. 2 represents by the application of force seat 3 on the stopcock shown in Figure 1 and stressed seat 5 by being 3 balls in some middle rolling element 4(present embodiments).
Application of force seat 3 can freely be turned round, and stressed seat 5 fuses with plug axle 6.Certainly, also application of force seat 3 can be positioned at the top of stressed seat 5, application of force seat 3 can freely be turned round, stressed seat 5 fuses with plug shaft portion 6.
Now simultaneously with reference to Fig. 1 and Fig. 3, making the application of force seat 13 that is positioned at simultaneously on the plug shaft portion 6 directly not form the inclined-plane by middle rolling element with stressed seat 15 contacts, and application of force seat 13 can freely be turned round, stressed seat 15 and plug shaft portion 6 fuse, the same with the foregoing description, also application of force seat 13 can be positioned at stressed 15 top.
In addition, as shown in Figure 1, the valve gap part 10 of present embodiment stopcock and plug shaft portion 6 are formed by two structure divisions, but valve gap part and plug shaft portion are made up of single structure division.
Structure shown in Figure 1 is set to members such as pressure spring to seal mutually with flowing medium and separates, thereby can avoid taking place between these members and flowing medium to pollute mutually, and this is especially necessary to the stopcock that is applicable to food industry.
Below, the operation and the working principle of the utility model stopcock described.
Its operating procedure and working principle are as follows:
Under first embodiment's situation, when rotating rotary handle 9, application of force seat 3 will drive rolling element 4(ball or roller) roll in the raceway that on by application of force seat 3 and stressed seat 5, forms, thereby the reaction force that produces on each rolling element all comprises along the axial force of plug axis directive effect, and this axial force just becomes the power that cock can be promoted.The micro-deformation that pressure spring 1 is taken place, thus cock is promoted slightly, so just can rotate rotary handle 9 smoothly and open or close stopcock.
In another embodiment's occasion of the utility model, its operating procedure is the same with above-mentioned first embodiment with working principle, just owing between application of force seat and stressed seat, directly do not form the inclined-plane contact by rolling element, the same generation makes pressure spring be subjected to the trace compression owing to the effect on inclined-plane, and cock can be promoted slightly smooth opening or throttle down.Therefore, above-mentioned two kinds of embodiments construct the equal effect on an equal basis that can produce roughly.In addition, because above-mentioned pressure spring 1 often downward compression cock impels itself and valve body to closely cooperate.Therefore, the advantage that also has good seal performance.
In sum, the utility model is compared with above-mentioned conventional art to have and can significantly be reduced torque or laborsaving, and only need along same gyratory directions operation cock valve, not only simple structure, operation are also convenient. In addition in the past because the operation torque of cock valve is big, or mode of operation is complicated and bring difficulty for the operation automation that realizes the cock valve. And the utility model low torque plug valve be owing to can significantly reduce the operation torque, and especially mode of operation is simple, automatically operates the condition created for realizing the cock valve.
Claims (3)
1, the low torque stopcock, comprise static part valve body (8) and valve gap part (10) and moving element cock, described cock is made of plug shaft portion (6) that forms one and stopper (7), the part of described plug shaft portion (6) is stretched out from valve gap part (10), described stopper (7) has frustoconical shape, has the fluid port on it, on described valve body (8), have and fitting surface that stopper (7) cooperates, mechanism that the revolution cock uses go up to be installed and for reducing the mechanism of described rotational torque at plug shaft portion (6), it is characterized in that, described minimizing rotational torque mechanism comprises and is positioned at application of force seat (3) and stressed (5) that plug shaft portion (6) is gone up the pressure spring (1) of nearly stopper (7) one ends and is positioned at spring (1) top, wherein, described swirl gear and application of force seat (3) form one, stressed seat (5) and plug shaft portion (6) form one, application of force seat (3) and stressed seat (5) form rubbing contact between the two, in addition, sealing component (11) and rolling bearing (2) are set respectively between described static part and moving element.
2, stopcock according to claim 1 is characterized in that described application of force seat (3) is positioned at the below of stressed seat (5), directly or by middle rolling element (4) forms described rubbing contact between application of force seat (3) and stressed seat (5).
3, stopcock according to claim 1 is characterized in that described application of force seat (3) is positioned at the top of stressed seat (5), directly or by middle rolling element (4) forms described rubbing contact between application of force seat (3) and stressed seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226652 CN2190206Y (en) | 1993-12-01 | 1993-12-01 | Low torque plug valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226652 CN2190206Y (en) | 1993-12-01 | 1993-12-01 | Low torque plug valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2190206Y true CN2190206Y (en) | 1995-02-22 |
Family
ID=33804222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93226652 Expired - Fee Related CN2190206Y (en) | 1993-12-01 | 1993-12-01 | Low torque plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2190206Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101842624B (en) * | 2007-10-15 | 2013-01-09 | 约尔格·维塞尔 | Shaft connection between two shafts |
-
1993
- 1993-12-01 CN CN 93226652 patent/CN2190206Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101842624B (en) * | 2007-10-15 | 2013-01-09 | 约尔格·维塞尔 | Shaft connection between two shafts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |