CN101430027B - Position indication apparatus for valve body movable sealing ring - Google Patents
Position indication apparatus for valve body movable sealing ring Download PDFInfo
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- CN101430027B CN101430027B CN2008102294589A CN200810229458A CN101430027B CN 101430027 B CN101430027 B CN 101430027B CN 2008102294589 A CN2008102294589 A CN 2008102294589A CN 200810229458 A CN200810229458 A CN 200810229458A CN 101430027 B CN101430027 B CN 101430027B
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- sealing ring
- valve body
- axis
- movable sealing
- valve
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Abstract
A position indicating device of a valve body dynamic sealing ring is provided with a circular tube shell provided with a front end cover and a rear end cover, a communicating shaft which passes through the front and the rear end covers and is respectively connected with a front rocker arm and a rear rocker arm at the two ends, a sliding block articulated at the outer end of the front rocker arm, a flushing pipe that is connected between the front end cover and the rear end cover, a short circular tube that is provided with a radial support saddle at the rear end and is connected with the rear end cover, a cambered long narrow hole arranged on the support saddle, a round orifice arranged at the outer end of the rear rocker arm, a threaded rod connected between the cambered long narrow hole and the round orifice arranged at the outer end of the rear rocker arm, and a proximity switch that is arranged between the outer end of the rear rocker arm and the support saddle and is respectively corresponding to the on and the off states of the valve body dynamic sealing ring. The position indicating device uses the communicating shaft which is respectively connected with rocker arms at the two ends for transmitting the movement of the valve body dynamic sealing ring, the communicating shaft is arranged in the circular tube shell that is installed in a mounting hole of the valve body, and sealing pairs are respectively arranged between the communicating shaft and the shell and between the shell and the mounting hole; when in use, impurities such as silt and the like in liquid medium can not enter the shell, so that the accurate indication of combination and separation between valve body dynamic sealing ring and a butterfly plate sealing ring is not influenced.
Description
Technical field
The present invention relates to the body movable sealing ring indicating equipment of a kind of butterfly valve or ball valve, the driving mechanism of the body movable sealing ring indicating equipment of particularly a kind of butterfly valve or ball valve.
Background technique
Butterfly valve or ball valve are to revolve to turn 90 degrees with spool to realize valve opening and the valve of closing.Butterfly valve or ball valve are revolving when turning 90 degrees switch, produce friction because of seal pressure between butterfly plate seal ring and the valve seals, the big more sealability of seal pressure is good more, but when butterfly valve or ball valve switch between butterfly plate sealing surface and the valve body sealing surface frictional force big more, butterfly valve or the ball valve frictional force when switch can produce wearing and tearing and scratch to butterfly plate seal ring and valve seals, and ring wear and scratch will cause valve to reveal.In order to eliminate the friction between butterfly plate seal ring and the valve seals when the switch of butterfly valve or ball valve, a kind of maintenance butterfly valve is disclosed among the Chinese patent ZL 2,006 2 20137380.4, the valve seals of the maintenance sealing pair of maintenance butterfly valve is a dynamic seal ring, annular oil hydraulic cylinder along the valve body circumference is arranged on the valve body, in the annular oil hydraulic cylinder annular piston is arranged, valve seals is on annular piston, with hydraulic pressure can drive annular piston along valve body axially before, the back motion, when butterfly plate is in closed position, with the hydraulic driving annular piston along its axially before, the back motion, can make body movable sealing ring and butterfly plate seal ring merge and separate, when valve switch moves, can reduce opening and closing moment realization zero friction.Be a kind of zero friction valve, zero friction valve can be zero friction butterfly valve, also can be zero friction ball valve.
The valve seals hydraulic driving of above-mentioned valve, when motion realizes valve switch in valve body, outside valve body, can not observe the location status of valve seals, if hydraulic system breaks down or dynamic seal ring moves when wrong, can influence the normal operation of valve place system, in order outside valve body, to observe the location status of valve seals, in the prior art, a kind of zero friction valve body movable sealing ring indicating device is disclosed among the Chinese patent ZL 2,007 2 0185293.0, zero friction valve body movable sealing ring indicating device has the circle tube form shell body of lower end closed, the upper end of housing is connected with elbow, housing stage casing sidewall has axial strip hole, the housing inner chamber has the epimere external diameter that matches bigger, in, two sections multidiameter shafts that the hypomere external diameter is less, the multidiameter shaft epimere reaches in the elbow, between multidiameter shaft epimere and epimere pipe seal ring is arranged, the indicating arm that the multidiameter shaft stage casing has the strip hole that can manage sidewall from the stage casing to stretch out, between multidiameter shaft epimere and the epimere pipe helical spring is arranged, in the external port of elbow lever is arranged, the elbow external port is stretched out in the outer end of lever, the interior curved boom of lever is against the upper end of multidiameter shaft epimere, is connected with balance pipe between elbow sidewall and the hypomere pipe.
The body movable sealing ring indicating equipment is installed on the zero friction valve and uses, and also can be installed on the butterfly valve of maintenance sealing pair or the ball valve to use.On the valve body of zero friction valve, near the body movable sealing ring place have can link to each other with the elbow external port the valve body connection mouth, the elbow external port is connected on the valve body connection mouth, allow the curved boom of lever outer end be against on the body movable sealing ring, can with indicating arm the position of body movable sealing ring be indicated by the motion of lever pushing multidiameter shaft during the body movable sealing ring motion.
This valve body movable sealing ring indicating device is that the motion with the lever harrow body movable sealing ring spreads out of, lever supports and connects two sections multidiameter shafts, lever is swung because of the motion of body movable sealing ring, on off state is indicated, lever is in the elbow of circle tube form shell body upper end, elbow communicates with body cavity, in use, the liquid medium of body cavity can enter in the elbow, if when containing impurity such as silt in the liquid medium, impurity such as silt can enter interior deposition of elbow of indicating device, be deposited on the swing activity of the impurity effect levers such as silt in the elbow, not only can not correctly indicate the on off state of body movable sealing ring, when serious, also can hinder the activity of body movable sealing ring.This butterfly valve body moving seal ring indicating equipment is not suitable for being installed on the valve of carrying the liquid medium that contains impurity such as silt.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose a kind of be more suitable for the liquid medium delivery line that contains impurity such as silt on the position indicator of the matching used valve body movable sealing ring of valve.
The present invention is achieved using the following method.
Invention scheme of the present invention is with the rocking arm of slidercrank mechanism by axle one end the straight line motion of body movable sealing ring to be transformed into to rotatablely move to pass, the rocking arm of a other end is rotated simultaneously, thereby indicate the relative position of body movable sealing ring.
For realizing the foregoing invention scheme, the position indicator of valve body movable sealing ring has circle tube form shell body, the forward and backward two ends of circle tube form shell body have forward and backward end cap respectively, the axis hole of axis on same straight line arranged respectively on the end cap of two ends, be installed with axis in the axis hole, the forward and backward two ends of axis are connected with the forward and backward rocking arm vertical with axis respectively, there is the minor axis parallel with axis the outer end of front arm, be hinged with slide block on the minor axis, between axis and the end cap sealing pair is arranged, the land that this device can be fixed on the valve is stamped in the rear end.
The present invention is installed on the valve of body movable sealing ring and uses, and valve can be butterfly valve or ball valve.Install on the valve body at body movable sealing ring place of valve of the present invention and need have mounting hole, the annular groove that matches with hinged slide block on the minor axis of front arm outer end need be arranged on the external cylindrical surface of the body movable sealing ring of butterfly valve or ball valve, and chute is parallel with the body movable sealing ring end face.During installation land is connected on the mounting hole on butterfly valve or the ball valve body, front arm puts in the valve pocket, and hinged slide block is inserted in the chute on the body movable sealing ring on the minor axis of front arm outer end, between housing and the mounting hole sealing pair is arranged.
During use, when with the hydraulic driving body movable sealing ring when it axially seesaws, by chute, slide block, front arm, the drive axis rotates, thereby drive the rear arm swing of axis rear end, pairing two ends, the outer end of rear arm limit position indicates body movable sealing ring and is in complete shut-down or full-gear.
The present invention is connected with rocking arm respectively with two ends axis is transformed into rotation motion to the straight line motion of body movable sealing ring and passes, axis is in circle tube form shell body, circle tube form shell body is installed on the mounting hole on the valve body, between axis and the housing sealing pair is arranged, between housing and the mounting hole sealing pair is arranged, during use, impurity such as the silt in the liquid medium can not enter in the housing, can not influence the working state that body movable sealing ring is correctly reflected in indicating device.
Below in conjunction with accompanying drawing, the present invention is further described.
Description of drawings
Fig. 1 is the main cross-sectional schematic according to the position indicator of a kind of valve body movable sealing ring of invention scheme proposition of the present invention;
The A of Fig. 2 Fig. 1 that is valve body movable sealing ring when opening is to schematic representation;
The B of Fig. 3 Fig. 1 that is valve body movable sealing ring when opening is to schematic representation;
Fig. 4 is that the A of valve body movable sealing ring Fig. 1 when off-position is to schematic representation;
Fig. 5 is that the B of valve body movable sealing ring Fig. 1 when off-position is to schematic representation;
Fig. 6 is that the master of valve that the position indicator of valve body movable sealing ring is installed looks schematic representation;
Fig. 7 is the schematic side view of Fig. 6;
Fig. 8 is a valve body movable sealing ring when opening, and the C-C of Fig. 6 rotates local enlarged diagram;
Fig. 9 is that the C-C of valve body movable sealing ring Fig. 6 when off-position rotates local enlarged diagram;
Figure 10 is the D-D cross-sectional schematic of Fig. 8;
Figure 11 is the main cross-sectional schematic of position indicator when lock state of valve body movable sealing ring.
Embodiment
Among Fig. 1～Fig. 5, the position indicator of valve body movable sealing ring has circle tube form shell body 1, the forward and backward two ends of circle tube form shell body have forward and backward end cap 2,3 respectively, the axis hole 4,5 of axis on same straight line arranged respectively on the end cap of two ends, be installed with axis 6 in the axis hole, the forward and backward two ends of axis are connected with the forward and backward rocking arm vertical with axis 7,8 respectively, there is the minor axis parallel with axis 9 outer end of front arm, be hinged with slide block 10 on the minor axis, sealing pair 11 is arranged between axis and the end cap, and the land 12 that this device can be fixed on the valve is stamped in the rear end.
The present invention is installed in when using on the valve, and impurity such as the silt in the liquid medium can not enter housing, and during use, impurity such as the silt in the liquid medium may deposit or attached in the mounting hole before the front cover of the present invention.For the impurity such as silt that can remove before the front cover deposition in the mounting hole in time or adhere to, the cleaning hose of impurity such as silt can be set on the position indicator of valve body movable sealing ring.
Among Fig. 1～Fig. 5, in the housing, be connected with cleaning hose 13 between front cover and the rear end cover, the front port 14 of cleaning hose is in the front of front cover, and the rear port of cleaning hose stretches out rear end cover, and rear port is connected with water valve 15.
Under some operating mode, lock the on off state of body movable sealing ring, be installed in as the present invention when using on the butterfly valve of the secondary and maintenance sealing pair of working seal, the valve seals of maintenance sealing pair is a dynamic seal ring, when maintenance sealing pair standard-sized sheet or complete shut-down, need to keep this working state of body movable sealing ring, to avoid the working seal pair in opening-closing process, to be subjected to the interference of dynamic seal ring or the safe on-bne repair of assurance working seal, so the locking framework of dynamic seal ring will be arranged on the position indicator of valve body movable sealing ring.
Among Fig. 1, Fig. 3, Fig. 5, Figure 11, the rear end cover of position indicator with valve body movable sealing ring of valve open and close state locking device is connected with short pipe 16, axis passes in short pipe, there is fan-shaped disc 17 rear end of short pipe, arc slot 18 is arranged on the fan-shaped disc, there is the tapped hole relative with arc slot 19 outer end of rear arm, is connected with the screw rod 20 with nut between arc slot on the fan-shaped disc and the rear arm outer end tapped hole, and the outer end of screw rod is fixed with contact block 26.
When body movable sealing ring is in the state that opens or closes, can screw the nut on the screw rod, axis can not be rotated, the body movable sealing ring of valve can not move, make the position indicator of valve body movable sealing ring be in the lock state that opens or closes, unclamp the nut on the screw rod, make the body movable sealing ring of valve be in released state, body movable sealing ring can move freely.
In order to prevent misoperation and the unlocking signal teletransmission of body movable sealing ring to be gone out, when having between fan-shaped disc and the contact block in release and the body movable sealing ring on off state corresponding near switch, when release, rotary screw is to certain length, contact block on the screw rod triggers near switch motion, the open and close state signal when sending release.
Among Fig. 1, Fig. 3, Fig. 4, Fig. 8, Fig. 9, Figure 11, between fan-shaped disc and the contact block, have when body movable sealing ring is in the open and close state respectively corresponding near switch 21.
Among Fig. 6～Figure 10, the position indicator 22 of valve body movable sealing ring is distributed on the valve body circumference of valve 27, the valve body movable sealing ring place valve body on have mounting hole 23, the annular groove 24 that matches with hinged slide block on the minor axis of front arm outer end need be arranged on the external cylindrical surface of the body movable sealing ring of valve, and chute is parallel with the end face of body movable sealing ring.During installation, land is connected on the mounting hole on butterfly valve or the ball valve body, front arm puts in the valve pocket, and hinged slide block is inserted in the chute on the body movable sealing ring on the minor axis of front arm outer end, and seal ring 25 is arranged between housing and the mounting hole.
Claims (4)
1. the position indicator of a valve body movable sealing ring, it is characterized in that: circle tube form shell body is arranged, the forward and backward two ends of circle tube form shell body have forward and backward end cap respectively, the axis hole of axis on same straight line arranged respectively on the end cap of two ends, be installed with axis in the axis hole, the forward and backward two ends of axis are connected with the forward and backward rocking arm vertical with axis respectively, there is the minor axis parallel with axis the outer end of front arm, be hinged with slide block on the minor axis, between axis and the end cap sealing pair is arranged, the land that this device can be fixed on the valve is stamped in the rear end.
2. press the position indicator of the described valve body movable sealing ring of claim 1, it is characterized in that: in the described housing, be connected with cleaning hose between front cover and the rear end cover, the front port of cleaning hose is in the front of front cover, and the rear port of cleaning hose stretches out rear end cover, and rear port is connected with water valve.
3. press the position indicator of claim 1 or 2 described valve body movable sealing rings, it is characterized in that: described rear end cover is connected with short pipe, axis passes in short pipe, there is radially bearing the rear end of short pipe, arc slot is arranged on the bearing, there is the circular hole relative with arc slot the outer end of rear arm, is connected with the screw rod of locking usefulness on the bearing between arc slot and the rear arm outer end circular hole.
4. by the position indicator of the described valve body movable sealing ring of claim 3, it is characterized in that: between described rear arm outer end and the bearing, have when the body movable sealing ring of valve is in the open and close final position respectively corresponding near switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102294589A CN101430027B (en) | 2008-12-09 | 2008-12-09 | Position indication apparatus for valve body movable sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102294589A CN101430027B (en) | 2008-12-09 | 2008-12-09 | Position indication apparatus for valve body movable sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101430027A CN101430027A (en) | 2009-05-13 |
| CN101430027B true CN101430027B (en) | 2010-07-28 |
Family
ID=40645587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102294589A Expired - Fee Related CN101430027B (en) | 2008-12-09 | 2008-12-09 | Position indication apparatus for valve body movable sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101430027B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8281798B2 (en) * | 2010-04-30 | 2012-10-09 | Fisher Controls International Llc | Ball valve seal assembly and ball valve comprising same |
| CN102562380A (en) * | 2012-02-29 | 2012-07-11 | 长城汽车股份有限公司 | Air intake device of multi-cylinder pressurization engine |
| CN104154249A (en) * | 2014-08-28 | 2014-11-19 | 能发伟业铁岭阀门股份有限公司 | Butterfly valve body movable sealing ring locking device |
-
2008
- 2008-12-09 CN CN2008102294589A patent/CN101430027B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101430027A (en) | 2009-05-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NENGFA WEIYE TIELING VALVE CO., LTD. Free format text: FORMER OWNER: NENGFA WEIYE ENERGY TECHNOLOGY CO., LTD.;LIAONING PROVINCE Effective date: 20130409 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130409 Address after: 112000 Tieling City, Liaoning province Yinzhou District Industrial Park Liaohai Road No. 39 Patentee after: NENGFA WEIYE TIELING VALVE JOINT-STOCK CO., LTD. Address before: 112000 Tieling City, Liaoning province Yinzhou District Guangyu Street No. 118 Patentee before: Liaoning Nengfa Weiye Energy Technology Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20131209 |