CN107989357A - The intelligent scaffolding steel pipe of stress can be surveyed - Google Patents
The intelligent scaffolding steel pipe of stress can be surveyed Download PDFInfo
- Publication number
- CN107989357A CN107989357A CN201810057322.8A CN201810057322A CN107989357A CN 107989357 A CN107989357 A CN 107989357A CN 201810057322 A CN201810057322 A CN 201810057322A CN 107989357 A CN107989357 A CN 107989357A
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- China
- Prior art keywords
- steel pipe
- strain
- wireless
- intelligent
- scaffolding steel
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 74
- 239000010959 steel Substances 0.000 title claims abstract description 74
- 239000011888 foil Substances 0.000 claims abstract description 7
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention relates to a kind of intelligent scaffolding steel pipe for surveying stress, including scaffolding steel pipe, the strain transducer being integrated on steel pipe and wireless strain collecting device are further included.The strain transducer that the steel pipe integrates is resistance strain sensor, and using the change of strain gage testing steel penstock stress, foil gauge, for one group, is uniformly distributed along steel pipe circumferencial direction, is fitted closely with steel pipe with four.The steel pipe integrates one group of resistance strain gage every one meter, and multigroup foil gauge can be integrated according to length.In use, the foil gauge is accessed wireless strain collecting device in units of group, according to the position of steel pipe and purposes, all can also can partly access.The wireless strain collecting device is encapsulated using aluminium alloy outer box, and is furnished with collet made of strong magnets, and when use is directly adsorbed on steel pipe, and absorption position is adjustable.The wireless strain collecting device includes signal input interface, signal conditioner, multi-channel a/d converter and wireless processor.
Description
Technical field
The present invention relates to steel pipe scaffold technical field, particular for scaffolding steel pipe, is related to a kind of intelligence for surveying stress
Can scaffolding steel pipe.
Background technology
Scaffold is indispensable temporary facility in construction, be for ensure high-rise working safely, be smoothed out applying
Work and the workbench or operation path set up, have wide in the installation of structure construction, decoration construction and equipment pipe
General application.
Fastener type steel pipe scaffold, since length of steel pipe is easy to adjust, fastener connection is easy, thus is convenient to mount and dismount, sets up
Flexibly, it is suitable for various planes, the building of facade and structures to use, it is economical in addition, processing is simple, so becoming current city
Most common scaffold on field.
In recent years, scaffold security incident in China's takes place frequently, and causes serious economic loss and casualties.To find out its cause,
Mainly there are three aspects：First, scaffold building does not meet specification；Second, during use, worker operates against regulations in violation of rules and regulations, causes
Scaffold is set to exceed load；3rd, the important accessory such as quality dissatisfaction such as steel pipe, fastener of scaffold.Although country has issued
Cloth implements the specification in relation to all kinds of scaffolds, but can only be performed in terms of the security monitoring of scaffold by supervisor, lacks
Few corresponding technical support.
The content of the invention
In order to strengthen the security monitoring of scaffold, prevent collapsing for scaffold, the present invention provides a kind of intelligence for surveying stress
Energy scaffolding steel pipe, the stress variation that can be directed to scaffolding steel pipe be monitored in real time, when its stress exceeds normal range (NR)
Make early warning.
In order to solve the above technical problems, the present invention takes following technical scheme：A kind of intelligent scaffold steel for surveying stress
Pipe, including scaffolding steel pipe, further include the strain transducer being integrated on steel pipe and wireless strain collecting device.
Specifically, the strain transducer that the scaffolding steel pipe integrates is resistance strain sensor, uses resistance strain gage
Measure the change of scaffolding steel pipe stress.
Further, the resistance strain gage of the resistance strain sensor with four be one group, it is equal along steel pipe circumferencial direction
Even distribution, fits closely with steel pipe.
Further, the scaffolding steel pipe integrates one group of resistance strain gage every one meter, can be collected according to the length of steel pipe
Into multigroup foil gauge.In use, the resistance strain gage is accessed into wireless strain collecting device in units of group, according to steel pipe
Position and purposes, all can also can partly access.
Preferably, after the resistance strain gage is solidificated in steel tube surface, coat moisture protection layer, prevent its intensity decreases,
Insulation breakdown and couple corrosion.Solder joint has been stayed when applying moisture protection layer.
Preferably, the resistance strain sensor uses bridge circuit as measuring circuit, and the bridge circuit uses four points
One of a kind of working method in bridge, half-bridge, full-bridge.
Preferably, when the resistance strain sensor uses half-bridge or full-bridge circuit, opposite resistance strain gage is accessed
The adjacent two-arm of electric bridge.
Preferably, the wireless strain collecting device is encapsulated using aluminium alloy outer box, and is furnished with bottom made of strong magnets
Support, when use, are directly adsorbed on scaffolding steel pipe, and absorption position is adjustable.
Further, the wireless strain collecting device includes signal input interface, signal conditioner, A/D turns of multichannel
Parallel operation and wireless processor.The output of the strain transducer is connected to signal input interface, the signal conditioner it is defeated
Go out to be connected to the input of A/D converter, the output of the A/D converter is connected to the input of wireless processor, the wireless place
The output of reason device is sent to remote pc client by way of being wirelessly transferred.
Further, the wireless strain collecting device be responsible under the coordination of wireless processor complete data collection,
Processing, send and receive.
Preferably, the signal of the signal conditioner pair of strain sensors collection carries out error compensation and necessary amplification
Processing.
Preferably, the multi-channel a/d converter converts analog signals into digital signal, easy to signal processing and biography
It is defeated.
Further, the wireless processor exports A/D converter digital signal carries out digital filtering, at analysis
Reason, and remote pc client is sent to by way of being wirelessly transferred.
Preferably, the wireless processor has storage control function, can store real-time strain data and history alarm
Information.
Preferably, the wireless processor is wirelessly transferred data by WLAN.
The beneficial effects of the invention are as follows：Gathered by integrating strain transducer on scaffolding steel pipe and connecting wireless strain
Equipment, monitors the stress variation of scaffolding steel pipe in real time, and by real time data and alarm by way of being wirelessly transferred
Information is sent to remote pc client, so as to find security risk of the scaffold during installation and construction usage, pole in time
The earth facilitates the security monitoring to scaffold.
Brief description of the drawings
Fig. 1 is the structure diagram for the intelligent scaffolding steel pipe that the present invention can survey stress.
Fig. 2 is the implementation principle block diagram for the intelligent scaffolding steel pipe that the present invention can survey stress.
Embodiment
Below in conjunction with attached drawing, the present invention will be described in detail.
The intelligent scaffold steel-tube construction of stress can be surveyed in the present invention as shown in Figure 1, the present invention implementation principle block diagram such as
Shown in Fig. 2.
As shown in Figure 1, the intelligent scaffolding steel pipe for surveying stress includes steel pipe 1, the resistance of resistance strain sensor
Foil gauge 2 and wireless strain collecting device 3.
Specifically, the resistance strain gage of the resistance strain sensor is integrated on scaffolding steel pipe, with four for one group,
It is uniformly distributed along steel pipe circumferencial direction, is fitted closely with steel pipe.The scaffolding steel pipe integrates one group of resistance-strain every one meter
Piece, multigroup foil gauge can be integrated according to the length of steel pipe.Wirelessly should in use, the resistance strain gage is accessed in units of group
Become collecting device 3, as needed, all can also can partly access.
Further, after the resistance strain gage is solidificated in steel tube surface, moisture protection layer is coated, prevents its intensity from dropping
Low, insulation breakdown and couple corrosion.Solder joint is stayed when applying moisture protection layer, for lead access wireless strain collecting device 3.
Preferably, the resistance strain sensor uses bridge circuit as measuring circuit, and the bridge circuit uses four points
One of a kind of working method in bridge, half-bridge, full-bridge.When using half-bridge or full-bridge circuit, opposite resistance strain gage is connect
Enter the adjacent two-arm of electric bridge, form differential circuit, to reduce measurement error, improve sensitivity.
Further, the wireless strain collecting device 3 is using the encapsulation of aluminium alloy outer box, and is furnished with made of strong magnets
Collet 4, when use, are directly adsorbed on scaffolding steel pipe, and position is adjustable, convenient for disassembly and assembly, time saving and energy saving.
As shown in Fig. 2, the wireless strain collecting device 3 includes signal input interface, signal conditioner, multichannel A/D
Converter and wireless processor.The output of the strain transducer is connected to signal input interface, the signal conditioner
Output is connected to the input of A/D converter, and the output of the A/D converter is connected to the input of wireless processor, described wireless
The output of processor is sent to remote pc client by way of being wirelessly transferred.The wireless strain collecting device 3 is responsible for
The collection of data is completed under the coordination of wireless processor, handles, send and receive.
When it is implemented, by each steel pipe and wireless strain collecting device reference numeral.During scaffold building,
Steel pipe according to the position of steel pipe and purposes before use, determine to need the resistance-strain for accessing wireless strain collecting device on steel pipe
Piece, and lead connection composition bridge, access wireless strain collecting device.The wireless strain collecting device absorption is on steel pipe
Position can be adjusted according to actual line situation.When construction finishes dismounting scaffold, after steel pipe removes, first by wireless strain
Collecting device and line are removed, then steel pipe is withdrawn unified place.Difference in wireless strain collecting device according to steel pipe is used
Way sets the early warning value of stress in advance, can set different warning levels.In the course of work, when the stress variation of steel pipe exceedes
During early warning value, alarm signal is sent to remote pc client by wireless strain collecting device, this alarm signal include alert levels,
Alert locations and corresponding stress variation information.Do not alarm generation when, remote pc client can also be asked to check and is stored in
Real-time strain data and history warning message in the wireless strain collecting device.
Preferably, the signal of the signal conditioner pair of strain sensors collection carries out error compensation and necessary amplification
Processing, the signal access multi-channel a/d converter after processing.The multi-channel a/d converter converts analog signals into numeral
Signal, easy to signal processing and transmission.The wireless processor has the function of data acquisition control, can control A/D converter
Sample frequency, and digital filtering is carried out to the digital signal of A/D converter output, removes noise, and then signal is divided
Analysis is handled, and is sent to remote pc client by WLAN.
The invention is not restricted to the above embodiment, made any to the above embodiment aobvious of those skilled in the art and
The improvement or change being clear to, all without the design beyond the present invention and the protection domain of appended claims.
Claims (9)
1. a kind of intelligent scaffolding steel pipe for surveying stress, including scaffolding steel pipe, it is characterised in that further include and be integrated in steel pipe
On strain transducer and wireless strain collecting device.
2. the intelligent scaffolding steel pipe according to claim 1 for surveying stress, it is characterised in that the scaffolding steel pipe collection
Into strain transducer be resistance strain sensor, use the change of strain gage testing scaffolding steel pipe stress.
3. the intelligent scaffolding steel pipe according to claim 2 for surveying stress, it is characterised in that the resistance-strain sensing
The resistance strain gage of device, for one group, is uniformly distributed along steel pipe circumferencial direction, is fitted closely with steel pipe with four.
4. the intelligent scaffolding steel pipe according to claim 3 for surveying stress, it is characterised in that the scaffolding steel pipe is every
One group of resistance strain gage is integrated every one meter, multigroup foil gauge can be integrated according to the length of steel pipe, in use, by the resistance-strain
Piece accesses wireless strain collecting device in units of group, according to the position of steel pipe and purposes, all can also can partly access.
5. the intelligent scaffolding steel pipe according to claim 3 for surveying stress, it is characterised in that the resistance strain gage is consolidated
Change after steel tube surface, coat moisture protection layer, and reserved solder joint.
6. the intelligent scaffolding steel pipe according to claim 2 for surveying stress, it is characterised in that the resistance-strain sensing
Device uses bridge circuit as measuring circuit, and the bridge circuit is using a kind of work side in a quarter bridge, half-bridge, full-bridge
Formula, during using half-bridge or full-bridge circuit, by the adjacent two-arm of opposite resistance strain gage access electric bridge.
7. the intelligent scaffolding steel pipe according to claim 1 for surveying stress, it is characterised in that the wireless strain collection
Equipment is encapsulated using aluminium alloy outer box, and is furnished with collet made of strong magnets, and when use is directly adsorbed on scaffolding steel pipe,
Absorption position is adjustable.
8. the intelligent scaffolding steel pipe according to claim 1 for surveying stress, it is characterised in that the wireless strain collection
Equipment includes signal input interface, signal conditioner, multi-channel a/d converter and wireless processor, the strain transducer
Output be connected to signal input interface, the output of the signal conditioner is connected to the input of A/D converter, and the A/D turns
The output of parallel operation is connected to the input of wireless processor, and the output of the wireless processor is sent to by way of being wirelessly transferred
Remote pc client.
9. the intelligent scaffolding steel pipe according to claim 8 for surveying stress, it is characterised in that the wireless processor leads to
WLAN is crossed to be wirelessly transferred data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810057322.8A CN107989357A (en) | 2018-01-22 | 2018-01-22 | The intelligent scaffolding steel pipe of stress can be surveyed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810057322.8A CN107989357A (en) | 2018-01-22 | 2018-01-22 | The intelligent scaffolding steel pipe of stress can be surveyed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989357A true CN107989357A (en) | 2018-05-04 |
Family
ID=62039710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810057322.8A Pending CN107989357A (en) | 2018-01-22 | 2018-01-22 | The intelligent scaffolding steel pipe of stress can be surveyed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989357A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141709A (en) * | 2018-07-03 | 2019-01-04 | 合肥工业大学 | A kind of distribution scaffold stress monitoring system |
| CN109708565A (en) * | 2019-02-14 | 2019-05-03 | 北京市劳动保护科学研究所 | A kind of monitoring device and system of truss structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168710A (en) * | 2000-11-30 | 2002-06-14 | Mitsubishi Heavy Ind Ltd | Method and instrument for measuring distortion of shaft body |
| CN102087151A (en) * | 2010-11-17 | 2011-06-08 | 重庆建工第三建设有限责任公司 | Intelligent force testing device of steel pipe scaffold based on wireless transmission |
| CN103912114A (en) * | 2014-03-28 | 2014-07-09 | 交通运输部公路科学研究所 | Intelligent scaffold fastener with function of measuring stress change |
| CN105067166A (en) * | 2015-07-28 | 2015-11-18 | 北京工业大学 | Sleeve type force transducer for support structures |
| CN107014472A (en) * | 2017-05-24 | 2017-08-04 | 深圳市靖洲科技有限公司 | A kind of dynamic electron miniature self-service car weighing apparatus of single hole cantilever beam foil gauge |
-
2018
- 2018-01-22 CN CN201810057322.8A patent/CN107989357A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002168710A (en) * | 2000-11-30 | 2002-06-14 | Mitsubishi Heavy Ind Ltd | Method and instrument for measuring distortion of shaft body |
| CN102087151A (en) * | 2010-11-17 | 2011-06-08 | 重庆建工第三建设有限责任公司 | Intelligent force testing device of steel pipe scaffold based on wireless transmission |
| CN103912114A (en) * | 2014-03-28 | 2014-07-09 | 交通运输部公路科学研究所 | Intelligent scaffold fastener with function of measuring stress change |
| CN105067166A (en) * | 2015-07-28 | 2015-11-18 | 北京工业大学 | Sleeve type force transducer for support structures |
| CN107014472A (en) * | 2017-05-24 | 2017-08-04 | 深圳市靖洲科技有限公司 | A kind of dynamic electron miniature self-service car weighing apparatus of single hole cantilever beam foil gauge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109141709A (en) * | 2018-07-03 | 2019-01-04 | 合肥工业大学 | A kind of distribution scaffold stress monitoring system |
| CN109708565A (en) * | 2019-02-14 | 2019-05-03 | 北京市劳动保护科学研究所 | A kind of monitoring device and system of truss structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180504 |