CN103343834A - Valve limiting switch with microswitches - Google Patents
Valve limiting switch with microswitches Download PDFInfo
- Publication number
- CN103343834A CN103343834A CN2013102335698A CN201310233569A CN103343834A CN 103343834 A CN103343834 A CN 103343834A CN 2013102335698 A CN2013102335698 A CN 2013102335698A CN 201310233569 A CN201310233569 A CN 201310233569A CN 103343834 A CN103343834 A CN 103343834A
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- CN
- China
- Prior art keywords
- valve
- cam
- microswitches
- housing
- sensitive 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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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a valve limiting switch with microswitches. The valve limiting switch with the microswitches comprises a valve shaft rod and a shell, wherein the valve shaft rod penetrates through the shell and is provided with three cams which are arranged up and down and are located on the end portion, located in the shell, of the valve shaft rod, and protruded parts of all cams are staggered; the three microswitches are arranged in the shell up and down and are provided with pressing pieces, and rolling wheels pushed by the protruded parts of the cams are arranged on the end portions of the pressing pieces. The opening of a valve can be accurately detected by the valve limiting switch with the microswitches.
Description
Technical field
The present invention relates to the valve limit switch with sensitive switch.
Background technique
The valve limit switch is to detect a kind of field instrument of valve state in the automatic control system.But the valve limit switch is not very accurate to the aperture detection of valve at present.
Summary of the invention
The object of the present invention is to provide a kind of valve limit switch with sensitive switch, it can accurately detect the aperture of valve.
For achieving the above object, technological scheme of the present invention is a kind of valve limit switch with sensitive switch of design, comprises valve shaft lever and housing; Valve shaft lever runs through housing, and valve shaft lever is provided with the cam of three upper and lower settings in its end that is positioned at housing, the protuberance dislocation of each cam; Be provided with the sensitive switch of three upper and lower settings in the housing, sensitive switch is provided with compressing tablet, and the compressing tablet end is provided with the roller that promotes for by the cam protuberance.
Preferably, protuberance space 90 degree of described each cam.
Advantage of the present invention and beneficial effect are: a kind of valve limit switch with sensitive switch is provided, and it can accurately detect the aperture of valve.
The valve position of valve is rotated and can be driven the valve shaft lever rotation, and then the cam that drives three upper and lower settings rotates, the protuberance dislocation of each cam, like this will be along with valve position is rotated, the protuberance of three cams touches the sensitive switch of three upper and lower settings successively, can three valve position of valve accurately be detected like this.
Description of drawings
Fig. 1 is schematic representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only are used for technological scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
The concrete technological scheme of implementing of the present invention is:
As shown in Figure 1, a kind of valve limit switch with sensitive switch 4 comprises valve shaft lever 1 and housing 7; Valve shaft lever 1 runs through housing 7, and valve shaft lever 1 is provided with the cam 2 of three upper and lower settings in its end that is positioned at housing 7, protuberance 3 dislocation of each cam 2; Be provided with the sensitive switch 4 of three upper and lower settings in the housing 7, sensitive switch 4 is provided with compressing tablet 5, and compressing tablet 5 ends are provided with the roller 6 that promotes for by cam 2 protuberances 3.
Protuberance 3 spaces 90 degree of described each cam 2.
The valve position of valve is rotated and can be driven valve shaft lever 1 rotation, and then the cam 2 that drives three upper and lower settings rotates, protuberance 3 dislocation of each cam 2, like this will be along with valve position is rotated, the protuberance 3 of three cams 2 touches the sensitive switch 4 of three upper and lower settings successively, can three valve position of valve accurately be detected like this.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. the valve limit switch of band sensitive switch is characterized in that, comprises valve shaft lever and housing; Valve shaft lever runs through housing, and valve shaft lever is provided with the cam of three upper and lower settings in its end that is positioned at housing, the protuberance dislocation of each cam; Be provided with the sensitive switch of three upper and lower settings in the housing, sensitive switch is provided with compressing tablet, and the compressing tablet end is provided with the roller that promotes for by the cam protuberance.
2. the valve limit switch of band sensitive switch according to claim 1 is characterized in that, protuberance space 90 degree of described each cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102335698A CN103343834A (en) | 2013-06-13 | 2013-06-13 | Valve limiting switch with microswitches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102335698A CN103343834A (en) | 2013-06-13 | 2013-06-13 | Valve limiting switch with microswitches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103343834A true CN103343834A (en) | 2013-10-09 |
Family
ID=49278652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102335698A Pending CN103343834A (en) | 2013-06-13 | 2013-06-13 | Valve limiting switch with microswitches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103343834A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279361A (en) * | 2014-10-20 | 2015-01-14 | 苏州常熟荣大威尔科技有限公司 | Limit switch of valve |
| CN112837952A (en) * | 2021-01-25 | 2021-05-25 | 重庆川仪自动化股份有限公司 | Swing arm type valve limit switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1167224A (en) * | 1996-06-03 | 1997-12-10 | 福田僚 | Valve device and air leakage detector |
| CN1320784A (en) * | 2000-04-27 | 2001-11-07 | 吴龙洙 | Electric ball valve |
| CN101627243A (en) * | 2007-02-26 | 2010-01-13 | 株式会社巴技术研究所 | Valve opening degree detection device |
| CN201556541U (en) * | 2009-02-23 | 2010-08-18 | 上海开利特种阀门制造有限公司 | Limit switch device of electric actuator used for valves |
| KR20130102286A (en) * | 2012-03-07 | 2013-09-17 | 주식회사 대정밸브 | A limit switch for valve |
-
2013
- 2013-06-13 CN CN2013102335698A patent/CN103343834A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1167224A (en) * | 1996-06-03 | 1997-12-10 | 福田僚 | Valve device and air leakage detector |
| CN1320784A (en) * | 2000-04-27 | 2001-11-07 | 吴龙洙 | Electric ball valve |
| CN101627243A (en) * | 2007-02-26 | 2010-01-13 | 株式会社巴技术研究所 | Valve opening degree detection device |
| CN201556541U (en) * | 2009-02-23 | 2010-08-18 | 上海开利特种阀门制造有限公司 | Limit switch device of electric actuator used for valves |
| KR20130102286A (en) * | 2012-03-07 | 2013-09-17 | 주식회사 대정밸브 | A limit switch for valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279361A (en) * | 2014-10-20 | 2015-01-14 | 苏州常熟荣大威尔科技有限公司 | Limit switch of valve |
| CN112837952A (en) * | 2021-01-25 | 2021-05-25 | 重庆川仪自动化股份有限公司 | Swing arm type valve limit switch |
| CN112837952B (en) * | 2021-01-25 | 2022-11-11 | 重庆川仪自动化股份有限公司 | Swing arm type valve limit switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131009 |