CN110926795A - Detection device for opening and closing states of large-scale oil pressure gate valve - Google Patents
Detection device for opening and closing states of large-scale oil pressure gate valve Download PDFInfo
- Publication number
- CN110926795A CN110926795A CN201811094350.3A CN201811094350A CN110926795A CN 110926795 A CN110926795 A CN 110926795A CN 201811094350 A CN201811094350 A CN 201811094350A CN 110926795 A CN110926795 A CN 110926795A
- Authority
- CN
- China
- Prior art keywords
- lever
- valve
- copper pipe
- detection device
- oil pressure
- 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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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/038—Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices
- G01R33/0385—Measuring direction or magnitude of magnetic fields or magnetic flux using permanent magnets, e.g. balances, torsion devices in relation with magnetic force measurements
Abstract
The invention discloses a detection device for the switching state of a large-scale oil pressure gate valve, which comprises a lever bracket, wherein a lever shoulder arm, a lever pillar and a length-adjustable contact rod are arranged on the lever bracket; the magnetic induction switch is characterized in that a magnetic spring is arranged in a copper pipe with an insulating protective layer on the outer surface, two ends of the magnetic spring are limited and fixed by insulating limiting plugs, and leads are respectively led out from the front end of the magnetic spring and the wall of the copper pipe. The invention adopts the magnetic force inductive switch and the improved valve detection bracket, when the valve is detected, the opening or closing signal of the magnetic force inductive switch can be transmitted to an indoor computer through the strong magnet which is far away from the valve and is arranged at the other end of the bracket only by movably connecting the lever shoulder arm end of the valve detection bracket with the valve connecting piece.
Description
Technical Field
The invention relates to a detection device, in particular to a detection device for the opening and closing state of a large-scale oil pressure gate valve.
Background
The detection of the on-off state of the existing large-scale oil pressure gate valve during operation mainly adopts a proximity switch and a mercury switch, and the detection is fixed on site without a unified mode. The existing valve detection device is mainly characterized in that one end of a lever type support is contacted with a valve connecting piece, the other end of the lever is provided with a sensing head, a proximity switch is arranged at a position close to the sensing head, and a signal lead on the proximity switch is connected with an indoor signal receiving control display part. The valve detection device is influenced by the high-temperature environment of a valve detection site and the performance of a proximity switch, so that the accuracy and the reliability of valve detection are difficult to ensure, parts need to be frequently replaced and maintained, and the comprehensive cost of the valve is high and the service life of the valve is short.
Disclosure of Invention
The invention aims to provide a device for detecting the opening and closing states of a large-sized oil pressure gate valve, which effectively overcomes the defects of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a detection device for the switching state of a large-scale oil pressure gate valve comprises a lever bracket, wherein a lever shoulder arm, a lever pillar and a length-adjustable contact rod are arranged on the lever bracket, a limiting rod is arranged below the adjustable contact rod, a strong magnet is arranged at the end part of the adjustable contact rod, and a magnetic induction switch is fixed on the outer side of the strong magnet at a certain interval through a U-shaped frame; the magnetic induction switch is characterized in that a magnetic spring is arranged in a copper pipe with an insulating protective layer on the outer surface, two ends of the magnetic spring are limited and fixed by insulating limiting plugs, and leads are respectively led out from the front end of the magnetic spring and the wall of the copper pipe.
Preferably, the two ends of the copper pipe are respectively sealed by silica gel plugs, and a tetrafluoro gasket is arranged between the insulation limit plug at the rear end of the copper pipe and the silica gel plugs.
Further, transformer oil is filled in the copper pipe.
Furthermore, the wire is connected with a light emitting diode and a one-kilo-ohm resistor in an indoor loop and is connected with the computer connector input clamping piece and the wire terminal row.
The working principle is that when the strong magnet is close to the magnetic induction switch, the magnetic spring in the tube is stressed and then shifts to be in contact with the inner part of the tube wall, so that a connecting circuit is conducted, the light-emitting diode in the loop is bright, the contact input clamping piece in the control room receives a signal, the microcomputer valve detection change display lamp is bright, when the strong magnet is far away from the magnetic induction switch, the magnetic spring quickly recovers to a stable static state under the action of the elasticity and the resistance of transformer oil, the loop is disconnected, the light-emitting diode in the loop is not bright, the contact input clamping piece in the control room receives a signal, and the microcomputer valve detection change display.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the magnetic force inductive switch and the improved valve detection bracket, when the valve is detected, the opening or closing signal of the magnetic force inductive switch can be transmitted to an indoor computer by the strong magnet which is far away from the valve and is arranged at the other end of the bracket as long as the lever shoulder arm end of the valve detection bracket is movably connected with the valve connecting piece.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a magnetic force inductive switch according to the present invention;
reference numbers in the figures: 10. a lever bracket; 20. a lever shoulder arm; 30. a lever prop; 40. a limiting rod; 50. a length adjustable feeler lever; 60. strong magnets; 70. a magnetic force induction switch; 71. an insulating protective layer; 72. a copper pipe; 73. a magnetic spring; 74. transformer oil; 75. an insulating limit plug; 76. a silica gel plug; 77. a tetrafluoro spacer; 80. a U-shaped frame; 90. and (4) conducting wires.
Detailed Description
The invention will be further explained with reference to the drawings.
Referring to fig. 1 and 2, the detection device of the present invention includes a lever bracket 10, a lever shoulder arm 20, a lever pillar 30 and a length-adjustable contact rod 50 are provided on the lever bracket 10, a limit rod 40 is provided below the adjustable contact rod 50, a strong magnet 60 is provided at an end of the adjustable contact rod 50, and a magnetic induction switch 70 is fixed on an outer side of the strong magnet 60 at a certain interval through a U-shaped frame 80; the magnetic force induction switch 70 is characterized in that a magnetic force spring 73 is arranged in a copper pipe 72 with an insulating sheath 71 on the outer surface, two ends of the magnetic force spring 73 are limited and fixed by an insulating limit plug 75, and lead wires 90 are respectively led out from the front end of the magnetic force spring 73 and the wall of the copper pipe 72. The two ends of the copper pipe 72 are respectively sealed by silica gel plugs 76, and a tetrafluoro gasket 77 is arranged between the insulation limit plug 75 at the rear end of the copper pipe and the silica gel plugs 76. The copper tube 72 is filled with transformer oil 74. The wire 90 is connected to a light emitting diode and a one thousand ohm resistor in an indoor loop to connect with a computer connector input card and a wire terminal block.
The invention adopts the magnetic force inductive switch 70 and the improved valve detection bracket, when detecting the valve, the opening or closing signal of the magnetic force inductive switch 70 can be transmitted to an indoor computer through the strong magnet 60 which is far away from the valve and is arranged at the other end of the bracket as long as the lever shoulder arm 20 end of the valve detection bracket is movably connected with the valve connecting piece, the detection is accurate and reliable, the valve component after the detection is qualified has long service life, and the comprehensive use cost is greatly reduced.
The above description is only an example of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a detection device that is used for large-scale oil pressure slide valve switch state, includes lever support, its characterized in that: the lever bracket is provided with a lever shoulder arm, a lever pillar and a length-adjustable contact rod, a limiting rod is arranged below the adjustable contact rod, the end part of the adjustable contact rod is provided with a strong magnet, and a magnetic induction switch is fixed on the outer side of the strong magnet at a certain interval through a U-shaped frame; the magnetic induction switch is characterized in that a magnetic spring is arranged in a copper pipe with an insulating protective layer on the outer surface, two ends of the magnetic spring are limited and fixed by insulating limiting plugs, and leads are respectively led out from the front end of the magnetic spring and the wall of the copper pipe.
2. The detection device for the opening and closing state of the large-sized oil pressure gate valve according to claim 1, wherein: the two ends of the copper pipe are respectively sealed by silica gel plugs, and a tetrafluoro gasket is arranged between the insulation limit plug at the rear end of the copper pipe and the silica gel plugs.
3. The detection device for the open-close state of the large-sized oil pressure gate valve according to claim 1 or 2, wherein: and transformer oil is filled in the copper pipe.
4. The detection device for the opening and closing state of the large-sized oil pressure gate valve according to claim 1, wherein: and the wire is connected with a light-emitting diode and a one-thousand-ohm resistor in an indoor loop and is connected with the computer connector input clamping piece and the wire terminal strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094350.3A CN110926795A (en) | 2018-09-19 | 2018-09-19 | Detection device for opening and closing states of large-scale oil pressure gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811094350.3A CN110926795A (en) | 2018-09-19 | 2018-09-19 | Detection device for opening and closing states of large-scale oil pressure gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110926795A true CN110926795A (en) | 2020-03-27 |
Family
ID=69856018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811094350.3A Pending CN110926795A (en) | 2018-09-19 | 2018-09-19 | Detection device for opening and closing states of large-scale oil pressure gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110926795A (en) |
-
2018
- 2018-09-19 CN CN201811094350.3A patent/CN110926795A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200327 |