CN204062131U - A kind of against shock automatic valve position feedback device - Google Patents
A kind of against shock automatic valve position feedback device Download PDFInfo
- Publication number
- CN204062131U CN204062131U CN201420524104.8U CN201420524104U CN204062131U CN 204062131 U CN204062131 U CN 204062131U CN 201420524104 U CN201420524104 U CN 201420524104U CN 204062131 U CN204062131 U CN 204062131U
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- China
- Prior art keywords
- valve body
- fixed support
- switch
- proximity switch
- valve
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- 230000035939 shock Effects 0.000 title claims abstract description 10
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
A kind of against shock automatic valve position feedback device, be arranged on valve body or operating device top, include: proximity switch, fixed support and coaxial catch, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body welds together, and makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.The utility model adopts contactless due to feedback switch, solves the device caused because of vibration problems malfunctioning, and switch according to the different needs of control system, can select electric pressure and the mode of connection of adaptation.Substantially increase the reliability of system.
Description
Technical field
The utility model relates to a kind of against shock automatic valve position feedback device.
Background technique
Automatic valve is widely used in the industrial production, electric valve and hydraulic valve bear the important function such as driving medium conveying, cooling water supply in large scale system, therefore automatic valve standard-sized sheet and closed positions signal belong to signal of interest in controlling unit, and the correctness of its feedback signal directly affects the correct running of whole system Automated condtrol flow process.In conventional art, for automatic butterfly valve: Spool rotating axle attended operation mechanism central shaft (electronic or hydraulic transmission), two cams are set with in operating device central axis, two cams are arranged up and down, be mutually 90 degree with valve shaft is concentric, valve body is when closed positions, and cam chimb tangent line place arranges contact-type sensitive switch up and down, by Spool rotating cam sensitive switch, launching position feedback signal.Conventional art major defect is that cam and sensitive switch need close contact just can send stabilization signal, but in the environment that vibrations are larger, there will be cam and closely cannot compress sensitive switch, even make switching damage because shaking excessive mutual extruding, cause signal cannot deliver to control system or the appearance of unstable situation, cause automatic control flow chart to exit because condition does not meet, greatly have impact on the reliability of system.
Model utility content
The purpose of this utility model is to provide a kind of against shock automatic valve position feedback device, and the feedback switch of this device adopts contactless, solves the device caused because of vibration problems malfunctioning.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of against shock automatic valve position feedback device, be arranged on valve body or operating device top, include: proximity switch, fixed support and coaxial catch, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body welds together, and makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.
Described proximity switch is 24V direct current supply, and switch diameter is outside screw type diameter M10-M18.
Described coaxial catch has a bottom surface and two facades, and three faces are vertical, bottom surface perforate, with stay bolt through bottom surface, and both sides bolton; Stay bolt extends valve body part with poppet shaft or operating device axle and welds, and makes it can with valve core rotation; Two facades are corresponding respectively with two proximity switches.
The advantage that the utility model has and effect are:
The utility model utilizes poppet shaft or operating device axle to extend valve body part, coaxial washer is arranged on existing rotational structure, make it can with Spool rotating, fixed support is welded on valve body side, two approach switchs are installed in parallel on fixed support, make switch with rotate catch be in same plane, catch with Spool rotating to standard-sized sheet or closed positions time, just in time be in the induction region of proximity position switch, thus send signal.Because feedback switch adopts contactless, solve the device caused because of vibration problems malfunctioning, switch according to the different needs of control system, can select electric pressure and the mode of connection of adaptation.Substantially increase the reliability of system.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is side view of the present utility model;
Fig. 3 is the utility model plan view.
In figure: proximity switch 1, fixed support 2, coaxial catch 3, valve body or operating device top 4, coaxial bolts 5.
Embodiment
As Figure 1-3, a kind of against shock automatic valve of the utility model position feedback device, be arranged on valve body or operating device top 4, include: proximity switch 1, fixed support 2 and coaxial catch 3, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body is welded together by coaxial bolts 5, makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.
Described proximity switch is 24V direct current supply, and switch diameter is outside screw type diameter M10-M18.Can metal object before inductive sensor in 5-8mm, mode that switch wire connection can be selected " two lines, three lines, four lines ".
Fixed support adopts steel plate to process, and be fixed on fixed support with bolt by proximity switch, the distance of two proximity switches is adjustable.Installing spring washer between fixed support and bolt can prevent vibrations from causing bolt looseness.
Coaxial catch adopts steel plate to process, and has a bottom surface and two facades, three vertical arrangements, bottom surface perforate, with stay bolt through bottom surface, and both sides bolton; Stay bolt extends valve body part with poppet shaft or operating device axle and welds, and makes it can with valve core rotation; The position corresponding with proximity switch, two facade positions is corresponding.
Claims (3)
1. an against shock automatic valve position feedback device, be arranged on valve body or operating device top, it is characterized in that including: proximity switch, fixed support and coaxial catch, the part that described coaxial washer and the poppet shaft of automatic valve or operating device axle extend valve body welds together, and makes it can with valve core rotation; Fixed support is welded on valve body side, and the quantity of proximity switch is two, and two proximity switches are installed in parallel on fixed support, makes proximity switch be in same plane with coaxial catch.
2. a kind of against shock automatic valve position feedback device according to claim 1, is characterized in that described proximity switch is 24V direct current supply, and switch diameter is outside screw type diameter M10-M18.
3. a kind of against shock automatic valve position feedback device according to claim 1, is characterized in that described coaxial catch has a bottom surface and two facades, and three faces are vertical, bottom surface perforate, with stay bolt through bottom surface, and both sides bolton; Stay bolt extends valve body part with poppet shaft or operating device axle and welds, and makes it can with valve core rotation; Two facades are corresponding respectively with two proximity switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524104.8U CN204062131U (en) | 2014-09-13 | 2014-09-13 | A kind of against shock automatic valve position feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524104.8U CN204062131U (en) | 2014-09-13 | 2014-09-13 | A kind of against shock automatic valve position feedback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204062131U true CN204062131U (en) | 2014-12-31 |
Family
ID=52203645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420524104.8U Active CN204062131U (en) | 2014-09-13 | 2014-09-13 | A kind of against shock automatic valve position feedback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204062131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265990A (en) * | 2014-09-13 | 2015-01-07 | 国家电网公司 | Position feedback device of shock-resisting automatic valve |
-
2014
- 2014-09-13 CN CN201420524104.8U patent/CN204062131U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265990A (en) * | 2014-09-13 | 2015-01-07 | 国家电网公司 | Position feedback device of shock-resisting automatic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |