CN107504985A - A kind of material safety detection mechanism - Google Patents
A kind of material safety detection mechanism Download PDFInfo
- Publication number
- CN107504985A CN107504985A CN201710132115.XA CN201710132115A CN107504985A CN 107504985 A CN107504985 A CN 107504985A CN 201710132115 A CN201710132115 A CN 201710132115A CN 107504985 A CN107504985 A CN 107504985A
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- China
- Prior art keywords
- circuit
- probe
- detection
- detection mechanism
- seal casinghousing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/16—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of material safety detection mechanism, including a seal casinghousing, detection circuit in seal casinghousing, detection probe with shield, detection probe passes through cable connection with detection circuit, detection probe includes probe holder and two probes on probe holder, probe holder sets cylindrical protrusions around two probes, the malfunction because of caused by dust accumulation is prevented by the projection, and rhone is set close to raised bottom outside on probe holder, contact when avoiding water drenching with male cooperation between two probes with water, avoids malfunctioning.The present invention is contacted with material by detection probe and forms measure loop, improves the reliability and stability of detection；The design of seal casinghousing reduces influence of the subsurface environment to service life, the structure design and detection electrical combination of detection probe, eliminates the possibility of malfunction；Low-profile of the present invention, it is simple in construction, easy for installation, stable performance, malfunction will not be produced, securely and reliably.
Description
Technical field
The present invention relates to a kind of testing agency, more particularly to a kind of material safety detection mechanism.
Background technology
At present, the material detection machine structure majority of in the market is examined by the way of testing equipment forms loop with the earth
Survey.The mechanism body part is connected with the earth, and electrode part contacts with material, is easily produced under the influence of the ground potential of working site
Raw malfunction, causes equipment to be not normally functioning, influences system uptime, or even causes system not run, greatly
The production cost and management cost that add material.
It is simple in construction in order to solve such a situation, it is necessary to a kind of profile is small, easy for installation, stable performance, mistake will not be produced
Action, safe and reliable material detection machine structure.
The content of the invention
It is an object of the invention to solve problem present in current techniques, there is provided a kind of profile is small, simple in construction, installation
It is convenient, stable performance, malfunction, safe and reliable material safety detection mechanism will not be produced.
To reach above-mentioned purpose, the technology used in the present invention means are：A kind of material safety detection mechanism, including one
Seal casinghousing, the detection circuit in seal casinghousing have the detection probe of shield, and detection probe passes through with detection circuit
Cable connection, detection probe include probe holder and two probes on probe holder, and the probe holder is around two probes
Cylindrical protrusions are set, the malfunction because of caused by dust accumulation is prevented by the projection, and close to raised bottom on probe holder
Rhone is set on the outside of portion, contact when avoiding water drenching with male cooperation between two probes with water, avoids malfunctioning.
Further, the seal casinghousing includes the simultaneously hollow shell block of opening and the lid for closing the opening,
Two holes are opened on shell block, and ejector is set respectively on two holes, detection probe and the cable of detection circuit pass through it
In ejector draw.
Further, the crown center of the lid sets suspension ring, and is spirally connected by screw thread and shell block, matches somebody with somebody in shell block and lid
The bottom of thread of conjunction sets sealing ring；The top for being also easy to produce solid accumulation position is hung on during use by suspension ring, when material heap
When product arrives certain altitude, probe contacts with material, and when the detection parameters of feedback are less than setting value, detection circuit sends solid accumulation
Alarm signal.
Further, the detection circuit includes two-stage estimation circuit, adjustment circuit and output circuit, is being not detected by heap
During product thing, the resistance approach infinity between two probes, one-level estimation circuit not output signal；When solid accumulation to detection
During probe contacts, two probes are turned on by material, when the value that one-level estimation circuit calculates is less than setting value, output driving letter
Number, drive signal is sent into adjustment circuit, after adjusted the regulation of electrical circuit, avoids shaking interference and produces malfunction；Letter after adjustment
Number handled into two level estimation circuit, when measured value is still less than setting value, two level estimation circuit output signal, driving is defeated
Go out circuit operation, send alarm signal.
Further, mounting post is set in the seal casinghousing, and the circuit board for detecting circuit passes through circuit board
Mounting post is arranged in seal casinghousing.
Further, the perforate on the shell block, one is located on the bottom surface of corresponding shell block opening, and one is located at shell block
Side, opening higher than detection circuit circuit board.
Further, the cable jacket dress leather hose.Connected between housing and detection probe by flexible metal conduit, wire from
Passed through in flexible metal conduit, it is ensured that the freely activity of detection probe part, mitigate the collsion damage between material, substantially prolongs production
The service life of product.
Further, shield one end perforate of the detection probe and ejector is installed, the other end drives what is be connected with hole
Groove, sealing ring is set, and probe holder is by being threadably mounted on groove at notch.
Further, the probe holder is working of plastics.
The advantageous effects of the present invention：Compared with other material detection machine structures, mechanism is no longer made up of back the earth
Road, but contacted by detection probe with material and form measure loop, the influence using live ground potential is avoided, improves inspection
The reliability and stability of survey；The design of seal casinghousing reduces influence of the subsurface environment to service life, the knot of detection probe
Structure designs and detection electrical combination, eliminates the possibility of malfunction；Low-profile of the present invention, simple in construction, easy for installation, property
Can be stable, malfunction will not be produced, securely and reliably.
Brief description of the drawings
The elaboration of a step is done to the present invention with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the present invention.
In figure：1st, seal casinghousing, 11, shell block, 12, lid, 13, suspension ring, 14, sealing ring, 15, mounting post, 2, inspection
Slowdown monitoring circuit, 3, shield, 31, groove, 4, detection probe, 41, probe holder, 42, probe, 43, cylindrical protrusions, 44, rhone, 5, draw
Go out device, 6, leather hose.
Embodiment
As shown in figure 1, a kind of material safety detection mechanism, including a seal casinghousing 1, the inspection in seal casinghousing
Slowdown monitoring circuit 2, there is the detection probe 4 of shield 3, with detection circuit 2 by cable connection, detection probe 4 includes visiting detection probe 4
Head frame 41 and two probes 42 on probe holder, the probe holder 41 set cylindrical protrusions 43 around two probes,
The malfunction because of caused by dust accumulation is prevented by the projection, and draining is set close to raised bottom outside on probe holder 41
Groove 44, contact when avoiding water drenching with male cooperation between two probes with water, avoids malfunctioning.
The seal casinghousing 1 includes the simultaneously hollow shell block 11 of opening and the lid 12 for closing the opening, in shell
Two holes are opened on seat 11, and ejector 5 is set respectively on two holes, detection probe 4 and the cable of detection circuit 2 pass through it
In an ejector 5 draw.
Cable ejector fitted seal can avoid the moisture in the external world from being contacted with internal electronic device, and improve product can
By property and service life.
The crown center of the lid 12 sets suspension ring 13, and is spirally connected by screw thread and shell block 11, matches somebody with somebody in shell block 11 and lid 12
The bottom of thread of conjunction sets sealing ring 14；The top for being also easy to produce solid accumulation position is hung on during use by suspension ring 13, works as thing
When material is stacked into certain altitude, probe contacts with material, when the detection parameters of feedback are less than setting value, detects the exhalation of circuit 2
Material accumulation alarm signal.
The detection circuit 2 includes two-stage estimation circuit, adjustment circuit and output circuit, when being not detected by deposit,
Resistance approach infinity between two probes 42, one-level estimation circuit not output signal；When solid accumulation arrives and detection probe
During contact, two probes 42 are turned on by material, when the value that one-level estimation circuit calculates is less than setting value, output driving letter
Number, drive signal is sent into adjustment circuit, after adjusted the regulation of electrical circuit, avoids shaking interference and produces malfunction；Letter after adjustment
Number handled into two level estimation circuit, when measured value is still less than setting value, two level estimation circuit output signal, driving is defeated
Go out circuit operation, send alarm signal.
Mounting post 15 is set in the seal casinghousing 1, and the circuit board of detection circuit 2 passes through mounting post 15
In seal casinghousing 1.
Perforate on the shell block 11, one on the bottom surface of corresponding shell block opening, a side for being located at shell block, is opened
Circuit board of the mouth higher than detection circuit.
The cable jacket fills leather hose 6.Connected between housing and detection probe by a flexible metal conduit, wire is from flexible metal conduit
Pass through, it is ensured that the freely activity of detection probe part, mitigate the collsion damage between material, substantially prolongs the use of product
Life-span.
One end perforate of shield 3 of the detection probe 4 simultaneously installs ejector 5, and the other end drives the groove 31 being connected with hole, groove
Sealing ring is set at mouthful, and probe holder 41 is by being threadably mounted on groove 31.
The probe holder 41 is working of plastics.
The hull shape provided in above-described embodiment be the application in design and manufacture, according to design processing convenience and
Provide, be not intended as the limitation to the architectural feature, such as pop one's head in, be made cylinder and the difference of polygon cylinder not too much
Greatly, simply the making of cylinder is more convenient.
Coal charge high position detecting instrument employed in the existing underground belt conveyor course of work, mainly using equipment and greatly
The mode that ground forms loop is detected, and electrode part contacts with material, in theory without any problem, but in actual work
Make scene, due to the influence that ground potential changes, easily produce malfunction, cause belt machine equipment mistakenly stop, directly affect production, and
Underground more and more uses automation control system, does not need manual intervention more, and the malfunction of existing detecting instrument and
Installing inconvenience etc. influences system normal operation, or even causes system not run, and significantly increases production cost and pipe
Manage cost.
The present invention is contacted with material by detection probe and forms measure loop, considers dust, the humidity of underground in design
Influenceed etc. various environment and anti-explosion safety requirement, the housing design by detection circuit part be to be connected with screw thread rotation,
The seal casinghousing that upper lid with suspension ring is formed, and mounting post is set in housing, draw dress by two on shell block
The design put, its explosion-proof performance is ensure that, and the detection probe with shield designs, it is ensured that external environment does not influence its detection
Reliability, the influence using live ground potential is avoided, improve the reliability and stability of detection；The design of seal casinghousing subtracts
Lack influence of the subsurface environment to service life, the structure design and detection electrical combination of detection probe, eliminate malfunction
Possibility；Low-profile of the present invention, it is simple in construction, easy for installation, stable performance, malfunction will not be produced, securely and reliably.
Claims (9)
1. a kind of material safety detection mechanism, including a seal casinghousing（1）, the detection circuit in seal casinghousing（2）,
With shield（3）Detection probe（4）, detection probe（4）With detecting circuit（2）By cable connection, detection probe 4 includes visiting
Head frame（41）With two probes on probe holder（42）, the probe holder（41）Around two probes, circular cylindrical projection is set
Rise（43,）The malfunction because of caused by dust accumulation is prevented by the projection, and in probe holder（41）Outside upper close raised bottom
Side sets rhone（44）, contact when avoiding water drenching with male cooperation between two probes with water, avoid malfunctioning.
2. material safety detection mechanism according to claim 1, it is characterised in that：The seal casinghousing（1）Including one
The hollow shell block being simultaneously open（11）With the lid for closing the opening（12）, in shell block（11）On open two holes, and at two
Ejector is set respectively on hole（5）, detection probe（4）With detecting circuit（2）Cable pass through one of ejector（5）
Draw.
3. material safety detection mechanism according to claim 2, it is characterised in that：The lid（12）Crown center set
Suspension ring（13）, and pass through screw thread and shell block（11）It is spirally connected, in shell block 11 and lid（12）The bottom of thread of cooperation sets sealing ring
（14）；Pass through suspension ring during use（13）The top for being also easy to produce solid accumulation position is hung on, when solid accumulation is to certain altitude,
Probe contacts with material, when the detection parameters of feedback are less than setting value, detects circuit（2）Send solid accumulation alarm signal.
4. material safety detection mechanism according to claim 1, it is characterised in that：The detection circuit（2）Including two-stage
Estimation circuit, adjustment circuit and output circuit, when being not detected by deposit, two probes（42）Between resistance close to infinite
Greatly, one-level estimation circuit not output signal；When solid accumulation with detection probe to when contacting, two are popped one's head in（42）Led by material
Logical, when the value that one-level estimation circuit calculates is less than setting value, output drive signal, drive signal is sent into adjustment circuit, through adjusting
After whole the regulation of electrical circuit, avoid shaking interference and produce malfunction；Signal after adjustment is handled into two level estimation circuit, when
When measured value is still less than setting value, two level estimation circuit output signal, driving output circuit action, alarm signal is sent.
5. material safety detection mechanism according to claim 2, it is characterised in that：The seal casinghousing（1）It is interior that electricity is set
Road plate mounting post（15）, detect circuit（2）Circuit board pass through mounting post（15）Installed in seal casinghousing（1）It is interior.
6. material safety detection mechanism according to claim 5, it is characterised in that：The shell block（11）On perforate, one
Individual to be located on the bottom surface of corresponding shell block opening, a side for being located at shell block, opening is higher than the circuit board for detecting circuit.
7. material safety detection mechanism according to claim 1, it is characterised in that：The cable jacket fills leather hose（6）.
8. material safety detection mechanism according to claim 1, it is characterised in that：The detection probe（4）Shield（3）
One end perforate simultaneously installs ejector（5）, the other end drives the groove being connected with hole（31）, sealing ring, probe holder are set at notch
（41）By being threadably mounted at groove（31）On.
9. material safety detection mechanism according to claim 8, it is characterised in that：The probe holder（41）For working of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132115.XA CN107504985B (en) | 2017-03-07 | 2017-03-07 | A kind of material safety detection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710132115.XA CN107504985B (en) | 2017-03-07 | 2017-03-07 | A kind of material safety detection mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107504985A true CN107504985A (en) | 2017-12-22 |
| CN107504985B CN107504985B (en) | 2019-10-08 |
Family
ID=60679174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710132115.XA Active CN107504985B (en) | 2017-03-07 | 2017-03-07 | A kind of material safety detection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107504985B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190307Y (en) * | 2008-05-12 | 2009-02-04 | 陈佳艺 | Pool with water level alarming |
| CN201532230U (en) * | 2009-08-10 | 2010-07-21 | 彭光正 | Digital capacitance type material-level transmitter |
| CN202267512U (en) * | 2011-09-28 | 2012-06-06 | 伊玛精密电子（苏州）有限公司 | Guide wave radar level gauge |
| JP2012154840A (en) * | 2011-01-27 | 2012-08-16 | Kinotech Solar Energy Corp | Liquid level gauge |
| CN104317316A (en) * | 2014-11-20 | 2015-01-28 | 徐州徐工施维英机械有限公司 | Control method and system based on material level of bin |
-
2017
- 2017-03-07 CN CN201710132115.XA patent/CN107504985B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201190307Y (en) * | 2008-05-12 | 2009-02-04 | 陈佳艺 | Pool with water level alarming |
| CN201532230U (en) * | 2009-08-10 | 2010-07-21 | 彭光正 | Digital capacitance type material-level transmitter |
| JP2012154840A (en) * | 2011-01-27 | 2012-08-16 | Kinotech Solar Energy Corp | Liquid level gauge |
| CN202267512U (en) * | 2011-09-28 | 2012-06-06 | 伊玛精密电子（苏州）有限公司 | Guide wave radar level gauge |
| CN104317316A (en) * | 2014-11-20 | 2015-01-28 | 徐州徐工施维英机械有限公司 | Control method and system based on material level of bin |
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| Publication number | Publication date |
|---|---|
| CN107504985B (en) | 2019-10-08 |
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