CN207649791U - Concrete crack detector - Google Patents
Concrete crack detector Download PDFInfo
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- CN207649791U CN207649791U CN201721510100.4U CN201721510100U CN207649791U CN 207649791 U CN207649791 U CN 207649791U CN 201721510100 U CN201721510100 U CN 201721510100U CN 207649791 U CN207649791 U CN 207649791U
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Abstract
The utility model discloses a kind of concrete crack detectors, it solves concrete crack detector to need under certain environment temperature, it could keep normally using, and staff can not differentiate the problem of whether environment temperature in environment meets the requirements, its key points of the technical solution are that：Including temperature-detecting device, voltage comparator device, driving device, it is controlled by driving device for whether someone and exporting the human body detection device of human testing signal around detection, human body detection device is coupled to receive the first judgment means that human testing signal and exporting judges signal, the first judgment means are coupled to receive the first judgement signal and judge signal in response to first to realize the suggestion device of prompt, a kind of concrete crack detector of the utility model, it can be when external environment meet the environment temperature of concrete crack detector normal work, staff is prompted.
Description
Technical field
The utility model is related to a kind of concrete NDT equipment, more particularly to a kind of concrete crack detector.
Background technology
It is wide to be widely used mainly in the cracks such as bridge, tunnel, building, concrete road surface, metal surface for crack comprehensive detector
The accurate detection of degree and the penetration of fracture.
Intelligent concrete vacuum satisfies water dispenser needs under certain environment temperature, could keep normally using, and works
Personnel can not differentiate whether the environment temperature in environment meets the requirements, and there is room for improvement.
Utility model content
The purpose of this utility model is to provide a kind of concrete crack detector, can not meet concrete in external environment
When the environment temperature of fracture detecting instrument normal work, staff is prompted.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of concrete crack detector includes the temperature for detecting ambient temperature and output temperature detection signal
Detection device is coupled to temperature-detecting device and compares dress with the voltage for receiving temperature detection signal and output voltage comparison signal
Set, be coupled to voltage comparator device with the driving device of receiving voltage comparison signal and output drive signal, be controlled by driving dress
Set for detection around whether someone and export the human body detection device of human testing signal, be coupled to human body detection device with
It receives human testing signal and exports and judge the first judgment means of signal, be coupled to the first judgment means to receive the first judgement
Signal simultaneously judges signal to realize the suggestion device of prompt in response to first.
Using the above scheme, first by temperature-detecting device, voltage comparator device to whether meeting item to environment temperature
Part is detected, and can start the setting pair of human body detection device and the first judgment means when temperature is more than normal value
Around whether there is the case where human body to be detected, and the setting of suggestion device can in the case where detecting people to staff into
Row prompt is not suitable for concrete crack detector so as to avoid the environment temperature timely understood convenient for staff herein
It uses.
Preferably, further including being set between human body detection device and the first judgment means for amplification human body inspection
Survey the signal amplifying apparatus of signal.
Using the above scheme, human testing signal is amplified by the setting of signal amplifying apparatus, and as human testing is believed
Number amplification can substantially reduce due to the signal of human testing signal is weak and it is normal to be carried out when being influenced by external environment
Transmission.
Preferably, the suggestion device include be coupled to the first judgment means with receive the first judgement signal and in response to
First judges signal to realize the light prompt circuit of light prompt and be coupled to the first judgment means to receive the first judgement
Signal simultaneously judges signal to realize the auditory tone cues electric circuit of auditory tone cues in response to first.
Using the above scheme, staff can be prompted by luminous form by light prompt circuit, and
It is particularly suitable for the noisy environment of external environment, and can be by the form of sounding to the people that works by the setting of auditory tone cues electric circuit
Member is prompted, when being particularly suitable for staff and do not observe light in time.
Preferably, the light prompt circuit includes being coupled to the first judgment means to receive the first judgement signal and defeated
Go out the switching part of switching signal and be coupled to switching part with receive switching signal and in response to switching signal it is luminous to realize
Illumination region.
Using the above scheme, by switching part and the setting of matched illumination region, it can be achieved that strobe light emission prompt, phase
Than in single luminous prompting, strobe light emission is provided with preferable prompt effect.
Preferably, the auditory tone cues electric circuit includes being coupled to the first judgment means to receive the first judgement signal and defeated
Go out the low-and high-frequency converter section of low-and high-frequency conversion signal and is coupled to low-and high-frequency converter section to receive low-and high-frequency conversion signal and sound
The pars stridulans of sounding should be realized in low-and high-frequency conversion signal.
Using the above scheme, it can realize that low-and high-frequency is converted by low-and high-frequency converter section and the matched pars stridulans used
Sound production prompt has preferably prompt effect compared to single sound production prompt.
Preferably, further including being coupled to the first judgment means to judge signal to receive the first judgement signal and export second
The second judgment means, be coupled to the second judgment means to receive the second judgement signal and judge signal in response to second to realize
The remote prompting device of remote prompting.
Using the above scheme, when people is not detected, pass through the second judgment means and remote prompting device at this time
Staff in a distant place can timely be reminded.
Preferably, further including the delay cutoff device for being coupled to the second judgment means with delay cutoff suggestion device.
Using the above scheme, it can timely be cut off in a period of time around at nobody by the setting of delay cutoff device
Suggestion device avoids suggestion device from working long hours under unmanned environment and causes the loss of the energy.
Preferably, the delay cutoff device is the time relay.
Using the above scheme, since delay cutoff device is the time relay, the effect of delay not only may be implemented, moreover it is possible to
It effectively reduces cost.
In conclusion the utility model has the advantages that：Pass through temperature-detecting device, driving device, voltage ratio
Judge the environment temperature around concrete crack detector compared with device, and makes in the higher concrete crack detector that is unfavorable for of temperature
With when, start human body detection device, to surrounding, whether someone is detected the first judgment means, detecting someone's situation
Staff is prompted by light prompt circuit, auditory tone cues electric circuit down, and to being in a distant place in the case of nobody
Staff pass through remote prompting device carry out remote prompts.
Description of the drawings
Fig. 1 is the schematic diagram of concrete crack detector；
Fig. 2 be temperature-detecting device, driving device, voltage comparator device circuit connection diagram；
Fig. 3 is the circuit connection diagram of human body detection device, signal amplifying apparatus, the first judgment means；
Fig. 4 is the schematic diagram of light prompt circuit；
Fig. 5 is the schematic diagram of auditory tone cues electric circuit；
Fig. 6 be the second judgment means, remote prompting device, delay cutoff device circuit diagram.
The circuit connection diagram of human body detection device, signal amplifying apparatus, the first judgment means；
In figure：1, human body detection device；2, the first judgment means；3, light prompt circuit；4, signal amplifying apparatus；5, it cuts
Change portion；6, illumination region；7, the second judgment means；8, auditory tone cues electric circuit；9, low-and high-frequency converter section；10, pars stridulans；11, it is delayed
Disconnecting device；12, driving device；14, temperature-detecting device；15, voltage comparator device；16, remote prompting device.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
A kind of concrete crack detector disclosed in the present embodiment, including it is used to detect ambient temperature and output temperature
It detects the temperature-detecting device 14 of signal, be coupled to temperature-detecting device 14 to receive temperature detection signal and output voltage compares
The voltage comparator device 15 of signal is coupled to drive of the voltage comparator device 15 with receiving voltage comparison signal and output drive signal
Dynamic device 12 is controlled by driving device 12 for whether someone and exporting the human testing dress of human testing signal around detection
It sets 1, be coupled to human body detection device 1 and judge the first judgment means 2 of signal to receive human testing signal and export, be coupled to
First judgment means 2 judge signal with reception first and judge signal in response to first to realize the suggestion device of prompt.
As shown in Fig. 2, temperature-detecting device 14 includes the resistance R1 of one end ground connection and one end is connected to resistance R1 and another
One end is connected to the thermistor RT of switch KA1-2, and thermistor here is NTC types and model NTC3950.
Voltage comparator device 15 is connected to the resistance R4 of power supply including one end, one end is connected to resistance R4 and the other end is grounded
Slide rheostat RP2 and normal phase input end be connected to thermistor RT and resistance R1 tie point voltage comparator A6,
The model LM393 of voltage comparator A6.
Driving device 12 includes that the triode Q2 for the output end that base stage is connected to voltage comparator A6 and one end are connected to
The relay KM2 of emitter and the other end ground connection of triode Q2, the model S9014 of triode Q2, the model of relay KM2
For HH52P.
As shown in figure 3, human body detection device 1 is the model IRA- of pyroelectric sensor A5 and pyroelectric sensor A5
E006SX is additionally provided with the letter for amplifying human testing signal between human body detection device 1 and the first judgment means 2 in addition
Number amplifying device 4, signal amplifying apparatus 4 are special amplifier A1 and model H8D1779A1.
First judgment means 2 include one end ground connection and the other end is connected to the resistance R2 of slide rheostat RP1, one end connection
Slide rheostat RP1, the inverting input that resistance R2 is connected in power supply and the other end are connected to slide rheostat RP1 and resistance
The tie point and in-phase input end of R2 is connected to the voltage comparator A2 of voltage amplifier A1 output ends, and arrangement above can be formed pair
First judges that the upper limit value of signal judges；First judgment means 2 further include resistance R3, Yi Jiyi that one end is connected to power supply VCC
Slide rheostat RP2, the inverting input that end ground connection and the other end are connected to resistance R3 are connected to professional amplifier A1 output ends
And in-phase input end is connected to the voltage comparator A3 of the tie point of slide rheostat RP2 and resistance R3, arrangement above can be formed
Judge that the lower limiting value of signal judges to first, in addition, the first judgment means 2, which further include base stage, is connected to voltage comparator A2, electricity
The triode Q1 of the output end of pressure comparator A3 and one end are connected to the relay of the emitter of triode Q1 and other end ground connection
The model of device KM1, voltage comparator A2 and voltage comparator A3 are LM393, the model S9014 of triode Q1, relay
The model HH52P of KM1.
Concrete crack detector further includes suggestion device, the suggestion device include be coupled to the first judgment means 2 with
First is received to judge signal and judge signal in response to first to realize the light prompt circuit 3 of light prompt and be coupled to
First judgment means 2 judge signal with reception first and judge signal in response to first to realize the auditory tone cues electricity of auditory tone cues
Road 8.
As shown in figure 4, light prompt circuit 3 includes being coupled to the first judgment means 2 to judge signal and defeated to receive first
Go out the switching part 5 of switching signal and be coupled to switching part 5 with receive switching signal and in response to switching signal it is luminous to realize
Illumination region 6.
Switching part 5 includes the capacitance C1 of one end ground connection, one end is connected to the resistance R10 of capacitance C1, one end is connected to resistance
R10 and the other end are connected to the resistance R13 for the switch KM1-1 for being controlled by relay MM1, the 7th foot is connected to resistance R13 and electricity
The tie point and the 6th foot, crus secunda of resistance R10 are all connected to 555 timer A4 of the tie point of capacitance C1 and resistance R10, shine
Resistance R11, the anode that portion 6 is connected to the 8th feet of 555 timer A4 including one end are connected to the light emitting diode D1 of resistance R11, one
End is connected to the third foot of 555 timer A4 and resistance R12, the anode of the tie point of light emitting diode D1 are connected to resistance
R12 and the light emitting diode D2 of minus earth.
The course of work of light prompt circuit 3 is as follows：
When relay MM1 triggering and conductings, the corresponding trigger switch KM1-1 of meeting is in running order, can touch at this time
The switching signal that 555 timer A4 interruptions export corresponding high level is sent out, the switching signal of high level is exported in 555 timers
When, light emitting diode D1 will not shine since both ends are in high level at this time, and light emitting diode D2 will shine；Instead
It can trigger light emitting diode D1 and be in accordingly at this time when 555 timer A4 do not export the switching signal of high level
Working condition, and light emitting diode D2 will not be shone due to short circuit, to sum up, be realized the stroboscopic of light prompt circuit 3
It shines.
As shown in figure 5, auditory tone cues electric circuit 8 includes being coupled to the first judgment means 2 to judge signal and defeated to receive first
Go out the low-and high-frequency converter section 9 of low-and high-frequency conversion signal and is coupled to low-and high-frequency converter section 9 to receive low-and high-frequency conversion signal simultaneously
In response to low-and high-frequency conversion signal to realize the pars stridulans 10 of sounding.
Low-and high-frequency converter section 9 includes the audio signal generation that one end is connected to the switch KM2-1 for being controlled by relay KM2
Device, one end are connected to the switch KT2-2 of audio signal generator, one end is connected to the time relay KT1 of switch KT2-2, one
End is connected to the switch KT1-1 of the tie point of time relay KT1 and switch KT2-2 and switch KT1-3, one end are connected to out
The switch KT2-1 of pass KT1-3, one end is connected to time relay KT1 and the other end is connected to the time relay of switch KT1-2
KT2；Pars stridulans 10 are connected to the inductance L1 of switch KT1-1 including one end, one end is connected to the capacitance C1 of inductance L1, is parallel to electricity
The loud speaker BL1 at the both ends appearance C1, one end is connected to the capacitance C1 of switch KT2-1, one end is connected to the inductance L2 of capacitance C1, parallel connection
Loud speaker BL2 in the both ends inductance L2, switch KT1-1, switch KT1-2, switch KT1-3 are controlled by time relay KT1, open
Pass KT2-1, switch KT2-2 are controlled by time relay KT2, are high frequency sounding by the position that loud speaker BL1 and capacitance C1 are constituted,
The position being made of loud speaker BL2 and capacitance C2 is low frequency sounding, time relay KT1, time relay KT2 model be
H3Y-2, the model TAG101 of audio signal generator.
The course of work of foregoing circuit is as follows：
When relay KM2 triggering and conductings, switch KM2-1 will be in closed state at this time, at this time audio signal
Generator generates corresponding audio signal, makes high frequency sounding by switch KT1-1 first, and at the same time time relay KT1
Start timing, the time set by the time relay KT1 to when, stop high frequency prompt at this time, and at the same time can touch
Send out switch KT1-2 and KT1-3 closure, time relay KT2 starts timing at this time, at this time audio signal be passed through capacitance C2 and
Low frequency prompt is carried out at loud speaker BL2；Time set by the time relay KT2 to when, switch can be controlled at this time
KT2-2 is closed, and then realizes restarting process, and then is completed low-and high-frequency and automatically switched prompt, and high-frequency sound is more sharp, and
Low-frequency sound is more dull, and effective remind arrives user.
As shown in fig. 6, concrete crack detector further includes being coupled to the first judgment means 2 to judge signal to receive first
And it exports and second judges the second judgment means 7 of signal, be coupled to the second judgment means 7 and judge signal with reception second and respond
Judge signal in second to realize the remote prompting device 16 of remote prompting,
Second judgment means 7 include the reverse phase that one end is connected to the output end of voltage comparator A2 and voltage comparator A3
Device, base stage be connected to phase inverter triode Q3 and one end be connected to triode Q3 output end and the other end ground connection after
Electric appliance KM3.
Remote prompting apparatus is the WIFI alarms that one end is connected to the switch KM3-1 for being controlled by relay KM3, WIFI reports
Alert device can prompt the staff in a distant place in the case where accessing network.
In addition, concrete crack detector further includes being coupled to the second prolonging with delay cutoff suggestion device of judgment means 7
When disconnecting device 11, delay cutoff device 11 is that one end is connected to the time relay of the switch KM3-2 for being controlled by relay KM3
Device KT3.
Overall process is as follows：
S1, first by thermistor detect concrete crack detector around environment temperature, when environment temperature rise
When, the resistance value of thermistor RT declines therewith at this time, and the voltage loaded on resistance R1 will be with preset reference voltage
It is compared, the voltage of meeting trigger voltage comparator A6 output high level compares letter when environment temperature reaches certain temperature
Number, so that trigger triode Q2 conductings, make relay KM2 open work.
S2, after relay KM2 opens work, can accordingly to surrounding, whether someone examines triggering human body detection device 1
It surveys, and after being amplified by signal amplifying apparatus 4, output is to the first judgment means 2.
S3, can start accordingly when the first judgment means 2 detect someone around light prompt circuit 3 carry out stroboscopic carry
Show, while triggering 8 low-and high-frequency auditory tone cues of auditory tone cues electric circuit.
S4 and can start WIFI alarms to being located at a distant place when someone around the first judgment means 2 are not detected
Staff prompt, and remind to it is certain when can pass through time relay KT3 and cut off light prompt circuit 3
Light prompt and auditory tone cues electric circuit 8 auditory tone cues.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (4)
1. a kind of concrete crack detector, it is characterized in that：Including being used to detect ambient temperature and output temperature detection letter
Number temperature-detecting device (14), be coupled to temperature-detecting device (14) to receive temperature detection signal and output voltage compares letter
Number voltage comparator device (15), be coupled to voltage comparator device (15) with receiving voltage comparison signal and output drive signal
Driving device (12) is controlled by driving device (12) for whether someone and exporting the human body of human testing signal around detection
Detection device (1) is coupled to human body detection device (1) and judges that the first of signal judges to fill to receive human testing signal and exporting
(2) are set, the first judgment means (2) is coupled to and judges signal to receive first and judge signal in response to first to realize prompt
Suggestion device, the suggestion device include being coupled to the first judgment means (2) to judge signal and in response to first to receive first
Judge signal and is sentenced with receiving first with realizing the light prompt circuit (3) of light prompt and being coupled to the first judgment means (2)
Break signal simultaneously judges signal to realize the auditory tone cues electric circuit (8) of auditory tone cues, the light prompt circuit (3) in response to first
Signal is judged with reception first including being coupled to the first judgment means (2) and exports switching part (5) and the coupling of switching signal
In switching part (5) to receive switching signal and realize luminous illumination region (6) in response to switching signal, the auditory tone cues electricity
Road (8) includes being coupled to the first judgment means (2) to judge signal with reception first and export the low-and high-frequency of low-and high-frequency conversion signal
Converter section (9) and low-and high-frequency converter section (9) is coupled to receive low-and high-frequency conversion signal and in response to low-and high-frequency conversion signal
Further include being coupled to the first judgment means (2) to judge signal and output the to receive first to realize the pars stridulans (10) of sounding
Two judge the second judgment means (7) of signal, be coupled to the second judgment means (7) and judge signal and in response to the to receive second
Two judge signal to realize the remote prompting device (16) of remote prompting.
2. concrete crack detector according to claim 1, it is characterized in that：Further include being set to human body detection device
(1) for amplifying the signal amplifying apparatus (4) of human testing signal and between the first judgment means (2).
3. concrete crack detector according to claim 1, it is characterized in that：Further include being coupled to the second judgment means
(7) with the delay cutoff device (11) of delay cutoff suggestion device.
4. concrete crack detector according to claim 3, it is characterized in that：The delay cutoff device (11) is the time
Relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510100.4U CN207649791U (en) | 2017-11-13 | 2017-11-13 | Concrete crack detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510100.4U CN207649791U (en) | 2017-11-13 | 2017-11-13 | Concrete crack detector |
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| Publication Number | Publication Date |
|---|---|
| CN207649791U true CN207649791U (en) | 2018-07-24 |
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ID=62889847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721510100.4U Active CN207649791U (en) | 2017-11-13 | 2017-11-13 | Concrete crack detector |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346417A (en) * | 2019-07-28 | 2019-10-18 | 北京交通大学 | A kind of tunnel inverted arch quality nondestructive testing instrument |
| CN113029080A (en) * | 2021-03-22 | 2021-06-25 | 上海同岩土木工程科技股份有限公司 | Non-contact mobile rapid measuring method and device for tunnel crack depth |
-
2017
- 2017-11-13 CN CN201721510100.4U patent/CN207649791U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346417A (en) * | 2019-07-28 | 2019-10-18 | 北京交通大学 | A kind of tunnel inverted arch quality nondestructive testing instrument |
| CN113029080A (en) * | 2021-03-22 | 2021-06-25 | 上海同岩土木工程科技股份有限公司 | Non-contact mobile rapid measuring method and device for tunnel crack depth |
| CN113029080B (en) * | 2021-03-22 | 2022-08-02 | 上海同岩土木工程科技股份有限公司 | Non-contact mobile rapid measuring method and device for tunnel crack depth |
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