CN105928489B - A kind of handheld water bottom fills stake elevation of top surface control prior-warning device and method - Google Patents
A kind of handheld water bottom fills stake elevation of top surface control prior-warning device and method Download PDFInfo
- Publication number
- CN105928489B CN105928489B CN201610417015.7A CN201610417015A CN105928489B CN 105928489 B CN105928489 B CN 105928489B CN 201610417015 A CN201610417015 A CN 201610417015A CN 105928489 B CN105928489 B CN 105928489B
- Authority
- CN
- China
- Prior art keywords
- resistance
- motor
- series
- alarm
- circuit
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
Abstract
The invention discloses a kind of handheld water bottoms to fill stake elevation of top surface control prior-warning device and method, including：Hand-held alarm, water proof wire and the underwater closed probe being sequentially connected in series；Hand-held alarm is internally provided with the master controller and power supply being connected respectively with master controller, signal processing circuit and warning circuit；Underwater closed probe is internally provided with motor, when filling concrete is so that coarse aggregate rises to designed elevation, underwater closed probe built-in motor resistance turns, and the surge current signal that the motor resistance is changed the line of production raw is connected to hand-held alarm by water proof wire, generates alarm signal；Advantageous effect of the present invention：The present apparatus is simple in structure, easy to operate, can be received by site operation personnel；It is examined by construction site, the present apparatus can accurately control the height of pile top of underwater cast-in-place pile, and within 5cm, the control accuracy that method is visited compared to traditional rod improves significantly precision.
Description
Technical field
The present invention relates to building engineering equipment correlative technology fields, and it is high to fill stake top face more particularly to a kind of handheld water bottom
Process control prior-warning device and method.
Background technology
Concrete is the most common type construction material in Construction of Civil Engineering, and purposes is very extensive, in building etc.
Play important role in construction.Among the construction of building, the construction of infrastructure is most important, is directly decide
The safety and stability of superstructure.Lower part concrete foundation is mostly pile foundation engineering, and is all hidden pile foundation, i.e. stake top
Designed elevation can not directly judge the elevation of foundation pile top surface in below ground and drilling full of mud, human eye.
Domestic existing most common detection method visits method and weight method for bar, and bar visits method i.e. with a root long bamboo pole in coagulation
Soil is stretched among mud when be up to influx height, where judging coarse aggregate by the experience of field personnel
Highly.For weight method i.e. with one with graduated line, one end is connected with weight, and among test mud, principle is similar with bar spy method.
However there are very big defects for existing method：
1) volume is excessively heavy.
2) need per detection operations are carried out at regular intervals, greatly delay construction speed.
3) experience of construction personnel is completely dependent on, easily causes serious superfilled phenomenon.
4) the superfilled waste for causing concrete cuts pile crown and wastes substantial amounts of manpower and financial resources.
5) concrete waste material environmental pollution is very serious.
In the prior art, research of the part on pile foundation elevation of top surface control device is had existed.Such as：
Prior art discloses vibrating mass of the proportion between mud and concrete is set in device lower end, work as concrete
Touching vibrating mass later can hold up vibrating mass, touch closed circuit after upper switch, alarm equipment alarm.The device is deposited
In following deficiency：1) each regional mud balance is different, and there is also very big differences for the proportion of concrete different labels.So
The false alarm of the device will necessarily be caused, and then influences the quality of entire pile body, is likely to result in economic loss.2) filling
During note, the face of gushing is irregular on concrete, will reach designed elevation when on the face of gushing can be higher than absolute altitude face, equally also can
It causes to report by mistake.
Prior art discloses the height by concrete in sample bucket detection drilling, this method visits method one with existing bar
Sample is time-consuming and laborious, can not solve the problems, such as actual.
Prior art discloses utilize in test mud of grabbing bucket to capture concrete.Since construction site environment is complicated, the dress
The workload of field personnel can undoubtedly be increased by putting, and the grab bucket of the device largely make use of bolt arrangement, in mud
Sand grains can block bolt after bolt is entered, and can not work so as to cause the device.
In conclusion how to design a kind of device, can fast and accurately control during bored concrete pile under water
The height of concrete, also can effectively improve construction efficiency reduces chisel stake cost, is asking for those skilled in the art's urgent need to resolve
Topic.
The content of the invention
The purpose of the present invention is exactly to solve above-mentioned problem, provides a kind of handheld water bottom and fills the control of stake elevation of top surface
Prior-warning device and method, the device reaction is rapid, can timely transfer warning message, and the effective construction efficiency that improves reduces chisel stake
Cost.Compact, it is easy to operate, it is durable, it can be received by vast field technician.
To achieve the above object, concrete scheme of the invention is as follows：
A kind of handheld water bottom fills stake elevation of top surface control prior-warning device, including：The hand-held alarm being sequentially connected in series
Instrument, water proof wire and underwater closed probe；
The hand-held alarm is internally provided with master controller and the power supply being connected respectively with master controller, signal
Process circuit and warning circuit；
The underwater closed probe is internally provided with motor, when filling concrete so that coarse aggregate rises to designed elevation
When, underwater closed probe built-in motor resistance turns, and the surge current signal that the motor resistance is changed the line of production raw is connected by water proof wire
Hand-held alarm is connected to, the surge current signal generates alarm signal after signal processing circuit；The motor resistance
After turning, main controller controls disconnect the power supply of underwater closed probe.
Further, the underwater closed probe includes：Sequentially connected conducting wire serial ports, motor and blade；Electronic
Machine shaft is equipped with rubber ring；The revolution electric current and locked rotor current difference of the motor are apparent.
Further, the signal processing circuit includes the sample circuit being sequentially connected in series, signal amplification circuit sum number
Analog conversion circuit；The sample circuit includes：The dual path isolation unit and sampling resistor being connected in series.
Further, the dual path isolation unit includes：
Probe output is sequentially connected in series the first input end of cut-in relay U9 after resistance R28 and triode Q2 all the way；
The second input terminal of relay U9 passes through diode D5 connection sampling resistors；The 3rd input end grounding of relay U9；In relay
Series-connected diodes D6 between the first input end of device U9 and the 3rd input terminal；
Another way probe output is sequentially connected in series the first input of cut-in relay U11 after resistance R33 and triode Q3
End；The second input terminal and the 3rd input end grounding of relay U11, in the first input end and the 3rd input terminal of relay U11
Between series-connected diodes D7；
The output terminal of relay U9 and relay U11 connect DC1 respectively.
Further, the sampling resistor includes：Resistance R26 and resistance R27 is composed in series series arm one, resistance R30,
Resistance R34 and resistance R31 are sequentially connected in series composition series arm two；Series arm one and series arm two are connected in parallel；String
One end of connection branch one and series arm two connects power supply respectively, and the other end is grounded respectively.
Further, the D/A converting circuit has two paths, and channel reception divides simultaneously by sampling resistor all the way
Amplified sampled voltage signal；Another way channel reception supply voltage after partial pressure.
Further, hand-held alarm includes：Display screen, operation panel and conducting wire slot；On the operation panel
Equipped with operation button；Conducting wire slot is equipped in the bottom of the hand-held alarm.
A kind of handheld water bottom fills the method for work of stake elevation of top surface control prior-warning device, including：
(1) underwater closed probe is connected by water proof wire with hand-held alarm；Sampling resistor is connected company with motor
It connects, passes through the sample rate current of sampling resistor measurement motor；
(2) when filling concrete so that coarse aggregate rises to designed elevation, closed probe motor internal stalling；
(3) direct current generator is hindered, and internal resistance is minimum when turning, and the series network internal resistance of direct current generator and sampling resistor becomes smaller, sampling
The voltage got on electric current increase measurement resistance becomes larger；The ohmically voltage carries out analog-to-digital conversion after amplification, passes through
It is output to after master controller regulation and control in warning circuit and sends alarm；
(4) main controller controls disconnect the power supply of underwater closed probe；
(5) perfusion of concrete is stopped.
Further, motor sample rate current flows through sampling resistor and generates pressure drop；The size of pressure drop and sampling on sampling resistor
The relation of electric current determines rate relation for ohm；Voltage on sampling resistor switchs to digital quantity after amplification by analog-digital converter, with
Pre-set threshold values is compared, and determines whether to alarm according to comparative result.
Advantageous effect of the present invention：
(1) present apparatus is simple in structure, easy to operate, can be received by site operation personnel；
(2) examined by construction site, the present apparatus can accurately control the height of pile top of underwater cast-in-place pile, and precision exists
Within 5cm, the control accuracy that method 30cm-50cm is visited compared to traditional rod improves significantly；
(3) during the present apparatus is applied to pile foundation construction, can significantly improve construction efficiency reduces construction cost；
(4) the superfilled height for the control underwater cast-in-place pile that the present apparatus can be strong, the length reduction of post-processing pile crown can have
The reduction concrete waste material discharge of effect, reduces the pollution even eliminated to ecological environment.
Description of the drawings
Fig. 1 is the general effect figure of product of the present invention；
Fig. 2 is the sample circuit figure that alarm internal circuit is held in the present invention；
Fig. 3 is the alarm electric operation control circuit figure that alarm internal circuit is held in the present invention；
Fig. 4 is the power circuit diagram that alarm internal circuit is held in the present invention；
Fig. 5 is the negative supply circuit diagram that alarm internal circuit is held in the present invention；
Fig. 6 is underwater closed sonde configuration schematic diagram in the present invention；
Fig. 7 is hand-held alarm structure diagram in the present invention；
Wherein：1-1, hand-held alarm, 1-2, water proof wire, 1-3, underwater closed probe；
8-1, conducting wire serial ports, 8-2, rear sealing cover, 8-3, motor, 8-4, rubber ring, 8-5, plastic packaging shell, 8-6, blade；
9-1, LED display, 9-2, mouth of raising one's voice, 9-3, operation panel, 9-4, power switch, 9-5, conducting wire slot.
Specific embodiment：
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of handheld water bottom fills stake elevation of top surface control prior-warning device, including：Hand-held alarm is prevented
Water conducting wire 1-2 and underwater closed probe 1-3；Wherein, the conducting wire slot 9-5 on hand-held alarm and water proof wire 1-2
One end connects, and the other end of water proof wire 1-2 is connected with the positive and negative anodes of the DC motors of underwater closed probe 1-3, and carries out waterproof
Processing.
As shown in fig. 7, hand-held alarm include display screen, internal circuit, power supply and switch, operation panel 9-3 and
Conducting wire slot 9-5.There are three button on operation panel 9-3, raise one's voice a mouthful 9-2, and power switch 9-4 and conducting wire slot 9-5 are located at hand
Hold the bottom of alarm 1-1.Power supply is 11.1V lithium batteries, in the cavity at the operation panel 9-3 back sides.
Water proof wire 1-2 is the strengthening core water proof wire 1-2 of Φ 6mm, it is contemplated that it is tens of that construction site may use length
The conducting wire of rice, the gravity of conducting wire can cause damages wire-break, by test of many times and onsite application, determine using customization
Strengthening core conducting wire.Motor 8-3 positive negative terminal of the water proof wire 1-2 one end directly with the underwater closed probe 1-3 is connected,
Another to be terminated with plug, plug can be inserted directly into the conducting wire slot 9-5 of the hand-held alarm.
As shown in fig. 6, underwater closed probe 1-3 is internally provided with motor 8-3, when filling concrete so that coarse aggregate rises
During to designed elevation, underwater closed probe 1-3 built-in motors 8-3 resistances turn, the surge current signal that motor 8-3 resistances are changed the line of production raw
Hand-held alarm is connected to by water proof wire 1-2, surge current signal generates alarm signal after signal processing circuit
Number；After motor 8-3 resistances turn, main controller controls disconnect the power supply of underwater closed probe 1-3.Water proof wire 1-2 passes through setting
Conducting wire serial ports 8-1 on motor 8-3 rear sealing covers 8-2 is connected with motor 8-3.
Underwater closed probe 1-3 includes：Blade 8-6, rubber ring 8-4, plastic packaging shell 8-5, motor 8-3.Blade 8-6 and
Plastic packaging shell 8-5 is PVC material.Rubber ring 8-4 is nitrile rubber, and rubber ring 8-4 is sleeved in motor 8-3 shafts, is pressed in electricity
Between motivation 8-3 and capsul, water-proof function is mainly played.Motor 8-3 be DC12V DC electromotor with brush 8-3, revolution electric current
Between 0.6A-0.7A, the drop between the revolution electric current and locked rotor current of locked rotor current 1.873A, motor 8-3 is huge,
It can significantly distinguish, so the motor 8-3 using this kind of model.
Hand-held alarm is internally provided with master controller and the power supply being connected respectively with master controller, signal processing
Circuit and warning circuit；
Signal processing circuit includes：Sample circuit, signal amplification circuit and D/A converting circuit；
As shown in Fig. 2, sample circuit includes：Dual path isolation unit and sampling resistor；Sample circuit uses two relays
Probe is exported and carries out the dual resisteance on power supply ground to prevent the influence internal circuit work of the factors such as external high pressure and the peace of user
Entirely.
Dual path isolation unit includes：
Probe output is sequentially connected in series the first input end of cut-in relay U9 after resistance R28 and triode Q2 all the way；
The second input terminal of relay U9 passes through diode D5 connection sampling resistors；The 3rd input end grounding of relay U9；In relay
Series-connected diodes D6 between the first input end of device U9 and the 3rd input terminal.
Another way probe output is sequentially connected in series the first input of cut-in relay U11 after resistance R33 and triode Q3
End；The second input terminal and the 3rd input end grounding of relay U11, in the first input end and the 3rd input terminal of relay U11
Between series-connected diodes D7.
The output terminal of relay U9 and relay U11 connect DC1 respectively.
Sampling resistor includes：Resistance R26 and resistance R27 is composed in series series arm one, resistance R30, resistance R34 and resistance
R31 is sequentially connected in series composition series arm two；Series arm one and series arm two are connected in parallel；Series arm one and series connection
One end of branch two connects power supply respectively, and the other end is grounded respectively.
Resistance R26, R27, R31, R34, R30 are sampling isolation resistance, play guard amplifier and Current Voltage conversion
Effect, resistance R30 are sampling resistor.
Sample circuit is protected in view of electric motor rotation resistant, and sample circuit protection, battery protection, the requirement of security employs two
Relay, which exports probe, to carry out the dual resisteance on power supply ground and influences internal circuit work to prevent factors such as external high pressures and make
The safety of user.In electric motor rotation resistant, controller can actively disconnect probe power supply so that battery to be protected not to be excessively discharged raising battery
Service life.1 Ohmic resistance of concatenation uses 10w power resistors.
Signal amplification circuit selects Ad620 to integrate instrument amplifier, has high gain accuracy and stability, amplification
Multiple is 50 times.Output terminal is with the addition of low-pass filter to reduce interference.
Analog to digital conversion circuit is configured as two-way autonomous working.Resistive voltage of the No.1 channel sample by amplification.No. two
Passage is cell voltage for protecting battery and calculating electricity (by partial pressure).
Circuit operation principle is：
No.1 passage：Sample rate current flows through sampling resistor R30, generates pressure drop on resistance R30, is put by signal amplification circuit
Analog to digital conversion circuit is sent to after big, measuring instrument starts to alarm when threshold values of the transformed numerical value more than setting.
No. two passages：Supply voltage inputs analog-to-digital conversion electricity after battery voltage supervisory circuit is to source voltage
Road, when threshold values of the transformed numerical value more than setting, measuring instrument starts to alarm.
Battery voltage supervisory circuit is made of R22, R23, C18, and mono- termination powers of resistance R22, the other end is divided into two-way,
In be grounded all the way after series resistance R23, be grounded after another way series capacitance C18.
As a kind of embodiment, analog to digital conversion circuit considers the control accuracy ability of 89c51, so simulation numeral turns
Change the ads1115 integrated simulation digital quantizers that part uses Texas Instrument to release.The simulation number of Ads1115 16 precision of maximum
Word transfer capability.With advantage simple in structure, that stability is high, sampling precision is high.
89c51 microcontrollers are the master controller of the hand-held alarm 1-1, and 89c51 has stability height by working environment
Influence small advantage.
Warning circuit is as shown in figure 3, the design of warning circuit considers that use environment is more noisy, so alarm sound should
This is big as far as possible and equipped with screen display warning message.Voice guard using piezoelectric ceramic piece as source of sound, most loudly
95 decibels of sound.Instrument further improves the stability of equipment using lithium battery power supply.
Warning circuit shown in Fig. 3 includes：Triode Q1, for amplifying power；Relay U7 can be realized as needed
The switching of difference conducting port；Diode D4, for protective relay U7.
As shown in figure 4, power circuit is stablized using source of stable pressure LM1085 come the electric current to input, it is ensured that electronic component
Normal work.To integrate instrument amplifier since there are ad620 in the circuit, thus will using negative supply come to internal circuit into
Row biasing.For negative electricity source circuit as shown in figure 5, being realized using phase inverter TPS60400, which only needs extraneous three electricity
The reversed of voltage can be realized in appearance.
A kind of handheld water bottom fills the method for work of stake elevation of top surface control prior-warning device, including：
(1) underwater closed probe 1-3 is connected by water proof wire 1-2 with hand-held alarm；By sampling resistor and motor
It is connected in series, passes through the sample rate current of sampling resistor measurement motor；
(2) when filling concrete so that coarse aggregate rises to designed elevation, closed probe motor internal stalling；
(3) direct current generator is hindered, and internal resistance is minimum when turning, and the series network internal resistance of direct current generator and sampling resistor becomes smaller, sampling
The voltage got on electric current increase measurement resistance becomes larger；The ohmically voltage carries out analog-to-digital conversion after amplification, passes through
It is output to after master controller regulation and control in warning circuit and sends alarm；
Motor sample rate current flows through sampling resistor and generates pressure drop；The size of pressure drop and the relation of sample rate current on sampling resistor
Determine rate relation for ohm；Voltage on sampling resistor switchs to digital quantity after amplification by analog-digital converter, and pre-set
Threshold values be compared, determine whether to alarm according to comparative result.
(4) main controller controls disconnect the power supply of underwater closed probe 1-3；
(5) perfusion of concrete is stopped.
Concrete methods of realizing is as follows：
Underwater closed probe 1-3 is fixed on the inside of steel reinforcement cage, among transferring to drilling with steel reinforcement cage, is opened simultaneously
Hand-held alarm detects whether the instrument works well, if the operating current that LED display 9-1 is shown is in 0.5A or so cards
Bright apparatus working is normal.Lower drain hopper proceeds by filling concrete, when concrete is highly gradually increasing from designed elevation face 1m
It is appropriate to reduce tank car discharging speed when left and right, and pay attention to observing the working condition of hand-held alarm 1-1.Concrete it is thick
Aggregate can hinder when touching the blade 8-6 of underwater closed probe 1-3 turns DC motor 8-3, and surge current signal can pass at this time
Enter into the circuit of hand-held alarm 1-1, warning circuit work.Stop blanking at this time.
Operation principle of the present invention is：
There is motor 8-3 in the underwater closed probe 1-3 of the present invention.When pass through water proof wire 1-2 access hand-held instrument
Afterwards, 9-4 is turned on the power switch, underwater closed probe 1-3 can be worked normally.When filling concrete so that coarse aggregate rises to sets
When counting absolute altitude, closed probe stalling, motor internal resistance is approximately equal to the equivalent resistance of Inside coil.Measured signal is the magnitude of current, so
It is measured in a manner that addition measures resistance.In order to measurement motor be made to get voltage as big as possible to improve its torque institute
It is selected as 1 Ω to measure resistance.Measurement obtains the voltage that resistance is got and can be calculated by Ohm's law to flow through resistance
Electric current.Direct current generator by hindered turn when internal resistance it is minimum thus direct current generator and resistance series network internal resistance become low current increase measurement
The voltage got on resistance becomes larger.The ohmically voltage carries out analog-to-digital conversion after amplification, by the main journey of microcontroller
It is output to after sequence regulation and control in warning circuit and sends alarm.It can stop the perfusion of concrete at this time.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (9)
1. a kind of handheld water bottom fills stake elevation of top surface control prior-warning device, it is characterized in that, including：What is be sequentially connected in series is hand-held
Formula alarm, water proof wire and underwater closed probe；
The hand-held alarm is internally provided with master controller and the power supply being connected respectively with master controller, signal processing
Circuit and warning circuit；
The underwater closed probe is internally provided with motor, when filling concrete is so that coarse aggregate rises to designed elevation, water
Under closed probe built-in motor resistance turn, the surge current signal that motor resistance is changed the line of production raw is connected in one's hands by water proof wire
Formula alarm is held, the surge current signal generates alarm signal after signal processing circuit；After the motor resistance turns,
Main controller controls disconnect the power supply of underwater closed probe.
2. a kind of handheld water bottom as described in claim 1 fills stake elevation of top surface control prior-warning device, it is characterized in that, the water
Under it is closed probe include：Sequentially connected conducting wire serial ports, motor and blade；Rubber ring is equipped on motor rotary shaft；It is described
The revolution electric current and locked rotor current difference of motor are apparent.
3. a kind of handheld water bottom as described in claim 1 fills stake elevation of top surface control prior-warning device, it is characterized in that, the letter
Number process circuit includes the sample circuit, signal amplification circuit and the D/A converting circuit that are sequentially connected in series；The sample circuit
Including：The dual path isolation unit and sampling resistor being connected in series.
4. a kind of handheld water bottom as claimed in claim 3 fills stake elevation of top surface control prior-warning device, it is characterized in that, it is described double
Road isolated location includes：
Probe output is sequentially connected in series the first input end of cut-in relay U9 after resistance R28 and triode Q2 all the way；Relay
The second input terminal of device U9 passes through diode D5 connection sampling resistors；The 3rd input end grounding of relay U9；In relay U9
First input end and the 3rd input terminal between series-connected diodes D6；
Another way probe output is sequentially connected in series the first input end of cut-in relay U11 after resistance R33 and triode Q3；After
The second input terminal and the 3rd input end grounding of electric appliance U11 is gone here and there between the first input end and the 3rd input terminal of relay U11
Connection connection diode D7；
The output terminal of relay U9 and relay U11 connect DC1 respectively.
5. a kind of handheld water bottom as claimed in claim 3 fills stake elevation of top surface control prior-warning device, it is characterized in that, it is described to adopt
Sample resistance includes：Resistance R26 and resistance R27 is composed in series series arm one, and resistance R30, resistance R34 and resistance R31 go here and there successively
Connection connection composition series arm two；Series arm one and series arm two are connected in parallel；Series arm one and series arm two
One end connects power supply respectively, and the other end is grounded respectively.
6. a kind of handheld water bottom as claimed in claim 3 fills stake elevation of top surface control prior-warning device, it is characterized in that, the number
Analog conversion circuit has two paths, and channel reception is by sampling resistor partial pressure and amplified sampled voltage signal all the way；Separately
Channel reception supply voltage after partial pressure all the way.
7. a kind of handheld water bottom as described in claim 1 fills stake elevation of top surface control prior-warning device, it is characterized in that, hand-held
Alarm includes：Display screen, operation panel and conducting wire slot；The operation panel is equipped with operation button；Described hand-held
The bottom of formula alarm is equipped with conducting wire slot.
8. a kind of handheld water bottom as described in claim 1 fills the method for work of stake elevation of top surface control prior-warning device, special
Sign is, including：
(1) underwater closed probe is connected by water proof wire with hand-held alarm；Sampling resistor and motor are connected in series, led to
The sample rate current of over-sampling resistance measurement motor；
(2) when filling concrete so that coarse aggregate rises to designed elevation, closed probe motor internal stalling；
(3) direct current generator is hindered, and internal resistance is minimum when turning, and the series network internal resistance of direct current generator and sampling resistor becomes smaller, sample rate current
The voltage got on increase measurement resistance becomes larger；The ohmically voltage carries out analog-to-digital conversion after amplification, by master control
It is output to after device regulation and control processed in warning circuit and sends alarm；
(4) main controller controls disconnect the power supply of underwater closed probe；
(5) perfusion of concrete is stopped.
9. a kind of handheld water bottom as claimed in claim 8 fills the method for work of stake elevation of top surface control prior-warning device, special
Sign is that motor sample rate current flows through sampling resistor and generates pressure drop；The size of pressure drop and the relation of sample rate current are on sampling resistor
Ohm determines rate relation；Voltage on sampling resistor switchs to digital quantity after amplification by analog-digital converter, and pre-set
Threshold values is compared, and determines whether to alarm according to comparative result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610417015.7A CN105928489B (en) | 2016-06-14 | 2016-06-14 | A kind of handheld water bottom fills stake elevation of top surface control prior-warning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610417015.7A CN105928489B (en) | 2016-06-14 | 2016-06-14 | A kind of handheld water bottom fills stake elevation of top surface control prior-warning device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105928489A CN105928489A (en) | 2016-09-07 |
| CN105928489B true CN105928489B (en) | 2018-05-25 |
Family
ID=56834015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610417015.7A Active CN105928489B (en) | 2016-06-14 | 2016-06-14 | A kind of handheld water bottom fills stake elevation of top surface control prior-warning device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105928489B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409522A (en) * | 2019-08-08 | 2019-11-05 | 山东启尔信息技术有限公司 | A kind of hidden filling concrete elevation controller and its working method |
| CN113186929B (en) * | 2021-04-15 | 2022-11-04 | 山东大学 | Cast-in-place pile concrete top surface elevation control device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200992706Y (en) * | 2006-12-01 | 2007-12-19 | 中国建筑材料科学研究总院 | Cast-in-place pile concrete casting-depth detecting device |
| CN202139616U (en) * | 2011-05-17 | 2012-02-08 | 天津二十冶建设有限公司 | Underwater elevation controller for cast-in-place concrete pile |
| CN204645052U (en) * | 2015-01-09 | 2015-09-16 | 山东正元建设工程有限责任公司 | A kind of concrete that controls surpasses the device of filling with height |
| CN205679224U (en) * | 2016-06-14 | 2016-11-09 | 山东大学 | Fill stake elevation of top surface at the bottom of a kind of handheld water and control prior-warning device |
-
2016
- 2016-06-14 CN CN201610417015.7A patent/CN105928489B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200992706Y (en) * | 2006-12-01 | 2007-12-19 | 中国建筑材料科学研究总院 | Cast-in-place pile concrete casting-depth detecting device |
| CN202139616U (en) * | 2011-05-17 | 2012-02-08 | 天津二十冶建设有限公司 | Underwater elevation controller for cast-in-place concrete pile |
| CN204645052U (en) * | 2015-01-09 | 2015-09-16 | 山东正元建设工程有限责任公司 | A kind of concrete that controls surpasses the device of filling with height |
| CN205679224U (en) * | 2016-06-14 | 2016-11-09 | 山东大学 | Fill stake elevation of top surface at the bottom of a kind of handheld water and control prior-warning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105928489A (en) | 2016-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105928489B (en) | A kind of handheld water bottom fills stake elevation of top surface control prior-warning device and method | |
| CN104422825B (en) | A kind of direct-current power ground insulation impedance detection apparatus and method | |
| CN206523504U (en) | A kind of soil temperature and humidity detection sampling integrated instrument | |
| CN205679224U (en) | Fill stake elevation of top surface at the bottom of a kind of handheld water and control prior-warning device | |
| CN107817207A (en) | The computational methods and its automatic monitoring device of a kind of foundation ditch infiltration coefficient | |
| CN110409522A (en) | A kind of hidden filling concrete elevation controller and its working method | |
| CN105547925B (en) | A kind of slip consistency detector and detection method | |
| CN104929164B (en) | A kind of cross concrete moment of torsion electronic probe device and operational approach thereof | |
| CN208043462U (en) | A kind of excavating gear for detecting sand-gravel cushion compactness | |
| CN206540902U (en) | A kind of soil water potential temperature measuring equipment | |
| CN202415969U (en) | Automatic energy-saving washing machine | |
| CN102755972B (en) | Living water washing jet pressure control device and control method thereof | |
| CN102944748B (en) | Landfill resistivity irregular factor test and engineering safety warning method and system | |
| CN206235646U (en) | Electric energy meter | |
| CN205317305U (en) | Hydraulic engineering small river channel wind -wave -resistant water gauge | |
| CN104391514B (en) | Real-time control automatic water supply device | |
| CN205751741U (en) | A kind of Multifunction transformer degaussing gear | |
| CN104533386A (en) | Selection and automatic protection device for drill stem of horizontal directional drilling machine | |
| CN105970850A (en) | Full-automatic accumulated water measuring, reminding and stopping system based on embedded CPS | |
| CN207604145U (en) | A kind of agricultural electronics spade that can show weight | |
| CN206563699U (en) | Portable many depth of penetration coefficient field measurement apparatus | |
| CN206057913U (en) | LSY integration measurement and control instruments | |
| CN105675836A (en) | Underground water quality monitoring method | |
| CN213658536U (en) | Concrete bank protection water permeability resistance detection device | |
| CN204730909U (en) | A kind of power station Intelligent water level sniffer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |