CN109357072A - A kind of external device for detecting valve position - Google Patents
A kind of external device for detecting valve position Download PDFInfo
- Publication number
- CN109357072A CN109357072A CN201811421149.1A CN201811421149A CN109357072A CN 109357072 A CN109357072 A CN 109357072A CN 201811421149 A CN201811421149 A CN 201811421149A CN 109357072 A CN109357072 A CN 109357072A
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- China
- Prior art keywords
- support base
- isolation
- mandril
- valve housing
- switch
- 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.)
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- 238000002955 isolation Methods 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims description 31
- 238000009434 installation Methods 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000006276 transfer reaction Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
Abstract
The invention discloses a kind of external device for detecting valve position, including close switch, mandril, isolation and support base, support base is embedded to be fixed in valve housing, mandril level is slidingly sealed in the right side wall for being arranged in support base, the right end slidingtype of mandril is set in valve housing and can release formula with the moving component in valve housing and offsets, the second pilot hole of strip is offered on the upper side wall of support base, the housing through-hole of strip is offered on the lateral wall of valve housing, isolation horizontal movable type is arranged in the second pilot hole and housing through-hole, the left side on the outer wall of valve housing and being located at housing through-hole is detachably fixed close to switch, the lower end of isolation and the left end of mandril connect, the upper end of isolation and close switch are opposite.A kind of external device for detecting valve position of the invention, compact-sized, easy to maintenance, maintenance cost is low, safeguards that the operability of debugging is higher, can promptly and accurately transfer reaction valve position state control signal.
Description
Technical field
The present invention relates to a kind of device for detecting valve position, more particularly to a kind of external device for detecting valve position.
Background technique
As automation and intelligence degree are continuously improved, valve or other equipment require with remote auto control and
State feedback function, wherein switching mode valve is relatively simple, only two kinds of seat in the plane states of open position and off-position, in order to detect valve position shape
Device for detecting valve position usually can be all arranged in state on valve, common are travel switch, close switch, optoelectronic switch etc., the former
For contact, both rear is contactless, therefore the latter has longer service life, especially simply small close to construction of switch
Ingeniously, easy for installation, in valve industry using relatively broad.
Working principle close to switch is mainly: when metal detection body close to the induction region close to switch, can cause
Close to switch internal circuit variation, output control signal, feedback valve position state.
Some valves will receive the limitation of structure in the application, and moving component is built entirely in body cavity, external nothing
Method directly detects valve position state, therefore the detection device for needing specially to design just is able to satisfy requirement.Herein with metallurgical hot rolling
It is illustrated for a kind of device for detecting valve position for the L-type water Scale removing valve applied in descaling system.L-type water Scale removing valve is a kind of gas
Dynamic valve is commonly used in middle and small scale, in mesolow water descaling system, may be used as injection valve, filling valve, circulating valve or minimum discharge
Valve has the advantages that compact-sized, small in size.As shown in fig. 1, the device for detecting valve position of existing L-type water Scale removing valve be by
Plug 15, sealant 13 (or gasket 14) and the equal components composition of close switch 1, need that valve housing 5 will be installed to close to switch 1
Inside could detect valve position state.It is as shown in Figure 2: valve piston (moving component 6) to the left (right side) move when, piston close to
It is (separate) to issue different automatically controlled signals close to switch 1, to show different valve position states, realize valve piston position
Detection.But there is two kinds of drawbacks for this mode:
(1) cable that close switch 1 is stretched out from valve housing 5 is in installation, transhipment and maintenance process, it is easy to because colliding with
It is cut off by neat root, causes not continuing to use, or must be by valve from production line once breaking down and can not work normally
On remove, the cleaning of sealant 13 replaced after then all disintegrating, and smeared to seal is got up also very numb
It is tired；
(2) the built-in installation and debugging close to switch 1 are relative complex, once detecting distance setting not enough causes signal
Unstable needs are re-replaced or are adjusted, and the problem of equally exist dismounting.
Summary of the invention
The present invention is completed to solve in the prior art insufficient, and the object of the present invention is to provide a kind of externals
Device for detecting valve position, compact-sized, maintenance replacement is efficient and convenient, reduces maintenance cost, safeguards that the operability of debugging is higher,
Can promptly and accurately transfer reaction valve position state control signal.
A kind of external device for detecting valve position of the invention, including close to switch, mandril, isolation and support base, it is described
Support base is embedded to be fixed in valve housing, and the right side wall of the support base offers the first pilot hole, the support base
The sealing of right side wall and the valve housing offset, the mandril level, which is slidingly sealed, to be set in first pilot hole, institute
The right end slidingtype for stating mandril be set in the valve housing and with the moving component in the valve housing can formula offset, institute
The second pilot hole for offering strip on the upper side wall of support base is stated, offers strip on the lateral wall of the valve housing
Housing through-hole, the housing through-hole is set to the surface of second pilot hole, and the isolation is horizontal from top to bottom to move
Dynamic formula is arranged in second pilot hole and the housing through-hole, described to be detachably fixed close to switch set on the valve shell
On the outer wall of body, the left side that the housing through-hole is set to close to switch, a left side for the lower end of the isolation and the mandril
End is detachably fixed connection, and the upper end of the isolation is opposite with close to switch level.
A kind of external device for detecting valve position of the invention may also is that
The support base is tubular, and the installation cavity for accommodating the support base is offered in the valve housing, described
Support base is fixed in the installation cavity, and the left end fixing sleeve of the support base is equipped with threaded cap, the left end of the support base
It is detachably fixed and is connect with the left side wall of the installation cavity by the threaded cap, the right side wall of the support base and the installation
The right side wall of chamber offsets.
Spring is equipped in the support base, the left end of the spring and the right side wall of the threaded cap offset, the spring
Left end be detachably fixed and connect with the valve housing by the threaded cap, the right end of the spring and the isolation
Lower part offsets.
The position of the isolation upper end is higher than the position close to switch top.
The top of the isolation is strip sheet metal, and the lower part of the isolation is annular metal piece, the isolation
Lower part fixing sleeve be set to the mandril left end on.
The left end of the mandril is equipped with external screw thread, and the left end of the mandril passes through under locking nut and the isolation
Portion is fixedly connected, and the locking nut is threadedly coupled with the left end of the mandril.
The hole wall of first pilot hole is equipped with the first seal groove, and bar is fixed with sealing ring is embedded at first sealing
In slot, the hole wall of first pilot hole is slidably connected by the bar sealing ring and mandril sealing.
The outer wall of the support base right end is equipped with the second seal groove of annular, and seat is fixed with sealing ring is embedded at described the
In two seal grooves, the right side wall of the support base is tightly connected by the seat sealing ring and the valve housing.
Described to be fixed on the valve outer wall close to switch by mounting bracket, the mounting bracket is rectangle steel branch
Frame, described to be set in the mounting bracket close to switch, the outer wall phase of the lower surface of the mounting bracket and the valve housing
It supports and is fixedly connected, the lower surface of the mounting bracket offers the bracket pilot hole of strip, and the bracket pilot hole is set to
The upper end of the surface of the housing through-hole, the isolation is arranged in the mounting bracket from the bracket pilot hole.
The lower surface of the mounting bracket is additionally provided with mounting hole, and the mounting bracket is solid by screw and the valve housing
Fixed connection, the screw pass through the mounting hole and are fixedly connected with the valve housing.
A kind of external device for detecting valve position of the invention, including close to switch, mandril, isolation and support base, it is described
Support base is embedded to be fixed in valve housing, and the right side wall of the support base offers the first pilot hole, the support base
The sealing of right side wall and the valve housing offset, the mandril level, which is slidingly sealed, to be set in first pilot hole, institute
The right end slidingtype for stating mandril is set in the valve housing and can release formula phase with the moving component in the valve housing
It supports, the second pilot hole of strip is offered on the upper side wall of the support base, is offered on the lateral wall of the valve housing
The housing through-hole of strip, the housing through-hole are set to the surface of second pilot hole, and the isolation is from top to bottom
Horizontal movable type is arranged in second pilot hole and the housing through-hole, described to be detachably fixed close to switch set on described
On the outer wall of valve housing, the close switch is set to the left side of the housing through-hole, the lower end of the isolation and the top
The left end of bar is detachably fixed connection, and the upper end of the isolation is opposite with close to switch level.In this way, close to switch, mandril,
The structure size of the parts such as isolation and support base is small, and compact-sized, mandril links together with isolation, the upper end of isolation
It is pierced by outside valve housing, when the moving component in valve housing is moved downward simultaneously close to end of travel, the right end of mandril and movement
Component contact, moving component can push mandril to be moved to the left, so that isolation be driven to be moved to the left close proximity to switch, into connecing
The induction region closely switched causes the circuit close to switch internal to change, output control signal, feedback valve position state；When
Moving component moves right when leaving end of travel, and moving component and mandril are detached from, and mandril, which moves right, drives isolation separate
Close to the induction region of switch, restore non-inductive switch state close to switch.Since moving component is when close to end of travel, touching
Hair piece and moving component synchronize be subjected to displacement, enable the control signal transmitting promptly and accurately close to switch.Meanwhile close switch
It is mounted on outside valve housing, without dismantling valve when close to switching damage, only needs direct dismounting and change close to switch, dismounting
Replace very convenient, improve work efficiency, reduce production risk, at the same with it is built-in close to switch compared with, external connects
The position adjustment closely switched is easy, and isolation is easy to control with close to the distance between switch, ensure that the triggering close to switch
Reliability is external simple close to switch installation and debugging.In addition, by setting support base, the right side wall and mandril of support base are close
Envelope connection, avoids the gas or liquid in valve and leaks from the gap between support base and mandril, the right side wall of support base
Gas or liquid in valve is avoided with valve housing sealed connection to leak from the gap between support base and valve housing,
With mandril directly seal sliding be arranged in valve housing compared with, the sealing between valve housing and mandril is not easy to realize, and
Dismounting maintenance is inconvenient, and the sealing structure between support base and mandril or valve housing, which is realized, to be easy, and convenient for disassembly and assembly, passes through
Support base, which is arranged, ensure that the leakproofness of valve, and convenient for disassembly and assembly.In terms of existing technologies, one kind of the invention is external
Formula device for detecting valve position has the advantage that compact-sized, and maintenance replacement is efficient and convenient, reduces maintenance cost, maintenance debugging
Operability it is higher, can promptly and accurately transfer reaction valve position state control signal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of L-type water Scale removing valve in the prior art.
Fig. 2 is in the prior art built-in close to switch installing structure figure.
Fig. 3 is a kind of rack assumption diagram of external device for detecting valve position of the present invention.
Figure number explanation
1 ... close switch 2 ... mandril 3 ... isolation
4 ... support base 5 ... valve housing 6 ... moving components
7 ... threaded cap 8 ... spring 9 ... bar sealing rings
10 ... seats sealing ring 11 ... mounting bracket 12 ... screw
13 ... sealant 14 ... gasket 15 ... plugs
Specific embodiment
Below with reference to Fig. 3, a kind of external device for detecting valve position of the invention is described in further detail.
A kind of external device for detecting valve position of the invention, referring to FIG. 3, including close to switch 1, mandril 2, isolation 3
With support base 4, the support base 4 is embedded to be fixed in valve housing 5, and the right side wall of the support base 4 offers first
Pilot hole, the right side wall of the support base 4 offset with the valve housing 5 sealing, and 2 level of mandril, which is slidingly sealed, to be set to
In first pilot hole, the right end slidingtype of the mandril 2 be set in the valve housing 5 and with the valve housing 5
Interior moving component 6 can release formula and offset, and the second pilot hole of strip is offered on the upper side wall of the support base 4, described
The housing through-hole of strip is offered on the lateral wall of valve housing 5, the housing through-hole is set to second pilot hole
Surface, the isolation 3 moves horizontally from top to bottom to be arranged in second pilot hole and the housing through-hole, described to connect
Nearly switch 1 is detachably fixed on the outer wall of the valve housing 5, the left side that the housing through-hole is set to close to switch 1
Side, the lower end of the isolation 3 are detachably fixed with the left end of the mandril 2 and connect, and the upper end of the isolation 3 is opened with close
It is horizontal opposite to close 1.In this way, the structure size close to parts such as switch 1, mandril 2, isolation 3 and support bases 4 is small, it is compact-sized,
Mandril 2 links together with isolation 3, and the upper end of isolation 3 is pierced by outside valve housing 5, the moving component 6 in valve housing 5
When moving downward simultaneously close to end of travel, the right end of mandril 2 is contacted with moving component 6, and moving component 6 can push mandril 2 to the left
It is mobile, so that isolation 3 be driven to be moved to the left the induction region for entering proximal to switch 1 close proximity to switch 1, cause close open
It closes the circuit inside 1 to change, output control signal, feedback valve position state；Stroke end is left when moving component 6 moves right
When end, moving component 6 and mandril 2 are detached from, and mandril 2, which moves right, drives isolation 3 far from the induction region close to switch 1, are connect
Nearly switch 1 restores non-inductive switch state.Since moving component 6 is when close to end of travel, isolation 3 and moving component 6 are same
Step is subjected to displacement, and enables to approach the transmitting of the control signal of switch 1 promptly and accurately.Meanwhile valve housing is mounted on close to switch 1
Outside 5, without dismantling valve when damaging close to switch 1, only need direct dismounting and change close to switch 1, disassembling, assembling and replacing is very square
Just, improve work efficiency, reduce production risk, at the same with it is built-in close to switch 1 compared with, it is external close to switch 1
Position adjustment is easy, and isolation 3 is easy to control with close to the distance between switch 1, ensure that the reliable trigger close to switch 1
Property, it is external simple close to 1 installation and debugging of switch.In addition, by setting support base 4, the right side wall and mandril 2 of support base 4 are close
Envelope connection, avoids the gas or liquid in valve and leaks from the gap between support base 4 and mandril 2, the right side of support base 4
Wall and the sealed connection of valve housing 5 avoid gas or liquid in valve from the gap between support base 4 and valve housing 5
Leakage, compared with mandril 2, directly sealing sliding is arranged in valve housing 5, the sealing between valve housing 5 and mandril 2 is not easy
It realizes, and dismounts maintenance inconvenience, the sealing structure between support base 4 and mandril 2 or valve housing 5, which is realized, to be easy, and
It is convenient for disassembly and assembly, it ensure that the leakproofness of valve by the way that support base 4 is arranged, and convenient for disassembly and assembly.In terms of existing technologies, originally
Invention a kind of external device for detecting valve position have the advantage that it is compact-sized, maintenance replacement it is efficient and convenient, reduce maintenance
Cost safeguards that the operability of debugging is higher, can promptly and accurately transfer reaction valve position state control signal.
A kind of external device for detecting valve position of the invention on the basis of the technical solution described in front, please refers to figure
3, it may also is that the support base 4 is tubular, the installation for accommodating the support base 4 is offered in the valve housing 5
Chamber, the support base 4 are fixed in the installation cavity, and the left end fixing sleeve of the support base 4 is equipped with threaded cap 7, the branch
The left end of support seat 4, which is detachably fixed by the threaded cap 7 with the left side wall of the installation cavity, to be connect, the right side of the support base 4
The right side wall of side wall and the installation cavity offsets.In this way, opening up installation cavity on valve housing 5 for installing support base 4, support base
4 are set as that tubular structure is simple, are used to for support base 4 being fixedly clamped in the right side of threaded cap 7 and installation cavity by setting threaded cap 7
Between wall, band internal thread mounting hole is offered on the left side wall of specific installation cavity, the outer wall of threaded cap 7 is equipped with outer spiral shell
Line, the mode that threaded cap 7 is mounted on the mounting hole, and is connected through a screw thread, which installs threaded cap 7, makes the position of threaded cap 7 exist
Horizontal direction can finely tune, to make threaded cap 7 that support base 4 to be fixedly clamped.On the basis of the technical solution described in front,
It may further be preferable that being equipped with spring 8, the right side wall phase of the left end of the spring 8 and the threaded cap 7 in the support base 4
It supports, the left end of the spring 8, which is detachably fixed by the threaded cap 7 with the valve housing 5, to be connect, the right side of the spring 8
It holds and offsets with the lower part of the isolation 3.In this way, spring 8 is set in support base 4, left end and the threaded cap 7 of spring 8 offset, bullet
The right end of spring 8 and isolation 3 offset and push isolation 3 mobile, moving component 6 is moved to the left contacted with the right end of mandril 2 after,
Moving component 6 pushes mandril 2 to be moved to the left, so that isolation 3 be driven to be moved to the left close proximity to switch 1, spring 8 is with to the left
Compression, then isolation 3 enters proximal in the induction region of switch 1, changes close to 1 internal circuit of switch, output control signal,
Feedback valve position state；Then, when moving component 6 moves right, the spring 8 in compressive state applies to the right isolation 3
Power pushes isolation 3 to move right far from the induction region close to switch 1, and the circuit inside close switch 1 restores to the original state, together
When isolation 3 be fixedly connected with mandril 2 mandril 2 driven to move right reset.
A kind of external device for detecting valve position of the invention on the basis of the technical solution described in front, please refers to figure
3, it may also is that the position of 3 upper end of the isolation is higher than the position close to 1 top of switch.In this way, make isolation 3 into
It when entering the induction region of close switch 1, can reliably trigger close to switch 1, avoid proximity to the induction of switch 1 less than isolation 3.
A kind of external device for detecting valve position of the invention on the basis of the technical solution described in front, please refers to figure
3, it may also is that the top of the isolation 3 is strip sheet metal, the lower part of the isolation 3 is annular metal piece, the touching
The lower part fixing sleeve for sending out piece 3 is set on the left end of the mandril 2.In this way, the top of isolation 3 and close switch 1 are opposite, pass through
Cause the variation for approaching 1 internal circuit of switch to export control signal close to or away from the sensitive surface close to switch 1, feeds back
Valve position state；The lower part of isolation 3 is set as annular, can be directly sleeved on the left end of mandril 2, structure is simple, easy to connect.?
On the basis of previously described technical solution, it is further preferred that, the left end of the mandril 2 is equipped with external screw thread, the top
The left end of bar 2 is fixedly connected by locking nut with the lower part of the isolation 3, a left side for the locking nut and the mandril 2
End is threadedly coupled.In this way, being removably to be fixedly connected because threaded connection is that one kind is widely used, by being arranged in mandril
2 left end setting external screw thread and locking nut connects isolation 3 and mandril 2, and structure is simple, and connection is reliable, assembly and disassembly side
Just.
A kind of external device for detecting valve position of the invention on the basis of the technical solution described in front, please refers to figure
3, it may also is that the hole wall of first pilot hole is equipped with seal groove, sealing ring fixation is embedded in the seal groove, described
Support base 4 is slidably connected by the sealing ring and the mandril 2 sealing.In this way, opening up seal groove for installing sealing ring, lead to
Cross the sealing between sealing ring realization mandril 2 and support base 4.
A kind of external device for detecting valve position of the invention on the basis of the technical solution described in front, please refers to figure
3, it may also is that the outer wall of 4 right end of the support base is equipped with the second seal groove of annular, the fixation of seat sealing ring 10 is embedded at
In second seal groove, the right side wall of the support base 4 is connected by seat sealing ring 10 and the valve housing 5 sealing
It connects.
A kind of external device for detecting valve position of the invention on the basis of the technical solution described in front, please refers to figure
3, it may also is that described be fixed on 5 outer wall of valve housing close to switch 1 by mounting bracket 11, the installation branch
Frame 11 is rectangle steel bracket, described to be set in the mounting bracket 11 close to switch 1, the lower surface of the mounting bracket 11 and institute
The outer wall for stating valve housing 5 offsets and is fixedly connected, and the lower surface of the mounting bracket 11 offers the bracket guiding of strip
Hole, the bracket pilot hole are set to the surface of the housing through-hole, and the upper end of the isolation 3 is from the bracket pilot hole
It is arranged in the mounting bracket 11.In this way, will be mounted in a rectangle steel bracket close to switch 1, protection with higher
The problem of destroying of colliding with is less likely to occur intensity.On the basis of the technical solution described in front, it is further preferred that, it is described
The lower surface of mounting bracket 11 is additionally provided with mounting hole, and the mounting bracket 11 connects by the way that screw 12 and the valve housing 5 are fixed
It connects, the screw 12 passes through the mounting hole and is fixedly connected with the valve housing 5.In this way, being because it is a kind of for being threadedly coupled
Widely used to be removably fixedly connected, structure is simple, and connection is reliable, is convenient to mount and dismount.
It is above-mentioned that only the specific embodiment in the present invention is illustrated, but it can not be used as protection scope of the present invention, it is all
Be according to the present invention in design spirit made by equivalent change or modification, be deemed to fall protection scope of the present invention.
Claims (10)
1. a kind of external device for detecting valve position, it is characterised in that: described including close switch, mandril, isolation and support base
Support base is embedded to be fixed in valve housing, and the right side wall of the support base offers the first pilot hole, the support base
The sealing of right side wall and the valve housing offset, the mandril level, which is slidingly sealed, to be set in first pilot hole, institute
The right end slidingtype for stating mandril is set in the valve housing and can release formula phase with the moving component in the valve housing
It supports, the second pilot hole of strip is offered on the upper side wall of the support base, is offered on the lateral wall of the valve housing
The housing through-hole of strip, the housing through-hole are set to the surface of second pilot hole, and the isolation is from top to bottom
Horizontal movable type is arranged in second pilot hole and the housing through-hole, described to be detachably fixed close to switch set on described
On the outer wall of valve housing, the close switch is set to the left side of the housing through-hole, the lower end of the isolation and the top
The left end of bar is detachably fixed connection, and the upper end of the isolation is opposite with close to switch level.
2. a kind of external device for detecting valve position according to claim 1, it is characterised in that: the support base is tubular,
The installation cavity for accommodating the support base is offered in the valve housing, the support base is fixed at the installation cavity
Interior, the left end fixing sleeve of the support base is equipped with threaded cap, and the left end of the support base passes through the threaded cap and the installation
The left side wall of chamber is detachably fixed connection, and the right side wall of the support base and the right side wall of the installation cavity offset.
3. a kind of external device for detecting valve position according to claim 2, it is characterised in that: be equipped with bullet in the support base
Spring, the left end of the spring and the right side wall of the threaded cap offset, the left end of the spring by the threaded cap with it is described
Valve housing is detachably fixed connection, and the right end of the spring and the lower part of the isolation offset.
4. a kind of external device for detecting valve position described in -3 any one claims according to claim 1, it is characterised in that:
The position of the isolation upper end is higher than the position close to switch top.
5. a kind of external device for detecting valve position described in -3 any one claims according to claim 1, it is characterised in that:
The top of the isolation is strip sheet metal, and the lower part of the isolation is annular metal piece, and the lower part of the isolation is solid
Surely it is sheathed on the left end of the mandril.
6. a kind of external device for detecting valve position according to claim 5, it is characterised in that: set on the left end of the mandril
Have external screw thread, the left end of the mandril is fixedly connected by locking nut with the lower part of the isolation, the locking nut with
The left end of the mandril is threadedly coupled.
7. a kind of external device for detecting valve position described in -3 any one claims according to claim 1, it is characterised in that:
The hole wall of first pilot hole is equipped with the first seal groove, and bar is fixed with sealing ring to be embedded in first seal groove, institute
The hole wall for stating the first pilot hole is slidably connected by the bar sealing ring and mandril sealing.
8. a kind of external device for detecting valve position described in -3 any one claims according to claim 1, it is characterised in that:
The outer wall of the support base right end is equipped with the second seal groove of annular, and seat is fixed with sealing ring is embedded at second seal groove
In, the right side wall of the support base is tightly connected by the seat sealing ring and the valve housing.
9. a kind of external device for detecting valve position described in -3 any one claims according to claim 1, it is characterised in that:
Described to be fixed on the valve outer wall close to switch by mounting bracket, the mounting bracket is rectangle steel bracket, described
It is set in the mounting bracket close to switch, the outer wall of the lower surface of the mounting bracket and the valve housing offsets and fixes
Connection, the lower surface of the mounting bracket offer the bracket pilot hole of strip, and the bracket pilot hole is set to the shell
The upper end of the surface of through-hole, the isolation is arranged in the mounting bracket from the bracket pilot hole.
10. a kind of external device for detecting valve position according to claim 9, it is characterised in that: under the mounting bracket
Surface is additionally provided with mounting hole, and the mounting bracket is fixedly connected by screw with the valve housing, and the screw passes through described
Mounting hole is fixedly connected with the valve housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811421149.1A CN109357072A (en) | 2018-11-27 | 2018-11-27 | A kind of external device for detecting valve position |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811421149.1A CN109357072A (en) | 2018-11-27 | 2018-11-27 | A kind of external device for detecting valve position |
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| CN109357072A true CN109357072A (en) | 2019-02-19 |
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| CN201811421149.1A Pending CN109357072A (en) | 2018-11-27 | 2018-11-27 | A kind of external device for detecting valve position |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673539A (en) * | 2020-06-18 | 2020-09-18 | 东方电气集团东方锅炉股份有限公司 | Automatic detection device and method for guide sleeve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3414693A (en) * | 1966-04-29 | 1968-12-03 | Tomkins Johnson Co | Cylinder head limit switch assembly |
| CN1281112A (en) * | 1999-07-14 | 2001-01-24 | 速睦喜股份有限公司 | Selector valve with position detection function |
| CN207814588U (en) * | 2018-01-25 | 2018-09-04 | 泉城阀门有限公司 | A kind of hydraulic self-closed butterfly valve |
| CN209262390U (en) * | 2018-11-27 | 2019-08-16 | 固安星光沃特高压水设备有限公司 | A kind of external device for detecting valve position |
-
2018
- 2018-11-27 CN CN201811421149.1A patent/CN109357072A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3414693A (en) * | 1966-04-29 | 1968-12-03 | Tomkins Johnson Co | Cylinder head limit switch assembly |
| CN1281112A (en) * | 1999-07-14 | 2001-01-24 | 速睦喜股份有限公司 | Selector valve with position detection function |
| CN207814588U (en) * | 2018-01-25 | 2018-09-04 | 泉城阀门有限公司 | A kind of hydraulic self-closed butterfly valve |
| CN209262390U (en) * | 2018-11-27 | 2019-08-16 | 固安星光沃特高压水设备有限公司 | A kind of external device for detecting valve position |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111673539A (en) * | 2020-06-18 | 2020-09-18 | 东方电气集团东方锅炉股份有限公司 | Automatic detection device and method for guide sleeve |
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