CN107882318A - The jacket-type scaffold base of chassis stress can be monitored - Google Patents
The jacket-type scaffold base of chassis stress can be monitored Download PDFInfo
- Publication number
- CN107882318A CN107882318A CN201711454999.7A CN201711454999A CN107882318A CN 107882318 A CN107882318 A CN 107882318A CN 201711454999 A CN201711454999 A CN 201711454999A CN 107882318 A CN107882318 A CN 107882318A
- Authority
- CN
- China
- Prior art keywords
- jacket
- chassis
- monitoring
- type scaffold
- bridge
- 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
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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
- E04G5/02—Scaffold feet, e.g. with arrangements for adjustment
-
- 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
- G01L1/225—Measuring circuits therefor
- G01L1/2262—Measuring circuits therefor involving simple electrical bridges
Abstract
The present invention relates to scaffold chassis technology field, particular for jacket-type scaffold base, it is related to a kind of jacket-type scaffold base for monitoring chassis stress, including steel plate chassis, outer steel pipe, in addition to the strain transducer and the intelligent wireless strain monitoring device of outside being integrated on steel plate chassis.The strain transducer is resistance strain sensor, uses bridge circuit as measuring circuit, and its mode of operation can be one kind in a quarter bridge, half-bridge or full-bridge.The information of strain transducer collection inputs intelligent wireless strain monitoring device by signal input interface, after signal condition, A/D conversions, analyzed and processed by microcontroller, and real time data and warning message are sent to PC control terminals by radio transmitting device, so as to realize the real-time monitoring to scaffold base chassis stress variation.The present invention can have found potential safety hazard of the scaffold during installation and construction usage in time, be very easy to the security monitoring to scaffold.
Description
Technical field
The present invention relates to scaffold chassis technology field, and particular for jacket-type scaffold base, being related to one kind can monitor
The jacket-type scaffold base of chassis stress.
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 in the installation of structure construction, decoration construction and equipment pipe wide
General application.
The scaffold security incident of China's construction in recent years takes place frequently, whether caused by scaffold entirety or local buckling
Topple, cave in, or scaffold take tear open and frame on operating personnel high falling, cause serious casualty accident.
Steel pipe scaffold vertical rod sets base, can anti-sliding stop and uneven subsidence.To the stress variation of scaffold base
Monitored in real time, early warning can be made when big change occurs for base stress, so it is timely to the corresponding site of scaffold
Checked, adjusted, prevented overall collapse or the partial collapse of scaffold, so as to reduce security incident, avoid casualties.
Therefore, in addition to being set up in strict accordance with regulation and using scaffold, during scaffold building and use, to its bottom
Seat carries out monitoring in real time and prevents and reduce the important measures of security incident.
The content of the invention
In order to prevent collapsing for scaffold, the present invention provides a kind of jacket-type scaffold bottom for monitoring chassis stress
Seat, is monitored in real time for the stress variation on its chassis, and on chassis, stress occurs to make early warning during big change.
In order to solve the above technical problems, the present invention takes following technical scheme：It is a kind of to monitor the outer of chassis stress
Shell type scaffold base, including steel plate chassis, outer steel pipe, the strain transducer being integrated on steel plate chassis and outside it is wireless
Intelligent strain monitoring device.
Specifically, the jacket-type scaffold base, its outer steel pipe internal diameter is bigger 2mm than vertical rod external diameter, will be vertical during use
In bar insertion outer steel pipe.
Further, the intelligent wireless strain monitoring device includes signal input interface, signal conditioner, A/D conversions
Device, microcontroller and radio transmitting device.The output of the strain transducer is connected to signal input interface, signal conditioner
Output be connected to the input of A/D converter, the output of A/D converter is connected to the input of microcontroller, microcontroller it is defeated
Go out to be connected to the input of radio transmitting device.
Preferably, the integrated strain transducer of the jacket-type scaffold base is resistance strain sensor.
Further, the resistance strain sensor uses the change of strain gage testing scaffold base chassis stress
Change.
Preferably, the resistance strain sensor uses bridge circuit as measuring circuit.
Further, the bridge circuit is using a kind of working method in a quarter bridge, half-bridge, full-bridge.
Further, the half-bridge working method includes two identical half-bridge circuits, and each half-bridge circuit includes
Two identical resistance strain gages, the resistance strain gage are symmetrically integrated on steel plate chassis, access the adjacent two-arm of electric bridge.
Further, a quarter bridge working method includes four identical a quarter bridge circuits, each four points
One of bridge circuit include a resistance strain gage, four resistance strain gages are uniformly distributed, are integrated on steel plate chassis.
Further, the full-bridge working method includes a full-bridge circuit, and the full-bridge circuit includes four identicals
Resistance strain gage, it is uniformly distributed, is integrated on steel plate chassis, relative foil gauge accesses the adjacent two-arm of electric bridge.
Further, the quantity of the resistance strain gage is extended to six, eight.
Preferably, the signal conditioner can the signal of pair of strain sensors collection carry out error compensation and necessary put
Big processing.
Preferably, the A/D converter converts analog signals into data signal, is easy to signal transacting and transmission.
Preferably, the data signal that the microcontroller exports to A/D converter carries out digital filtering, analyzing and processing, and
Sent by radio transmitting device.
The beneficial effects of the invention are as follows：By integrating strain transducer on scaffold base chassis and connecting intelligent wireless
Strain monitoring device, the stress variation on scaffold base chassis is monitored in real time, and will be real-time by wireless transmitting system
Data and warning message are sent to PC control terminals, so as to find that safety of the scaffold during installation and construction usage is hidden in time
Suffer from, be very easy to the security monitoring to scaffold.
Brief description of the drawings
Fig. 1 is the structural representation for the jacket-type scaffold base that the present invention can monitor chassis stress.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the theory structure block diagram of the present invention.
Fig. 4 is the structure top view of the jacket-type scaffold base that chassis integrates six resistance strain gages in embodiment 4.
Fig. 5 is the structure top view of the jacket-type scaffold base that chassis integrates eight resistance strain gages in embodiment 5.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail.
Embodiment 1
Jacket-type scaffold understructure such as Fig. 1-2 of chassis stress, implementation principle of the invention can be monitored in the present invention
Structure such as Fig. 3.
As shown in Figure 1-2, the jacket-type scaffold base for monitoring chassis stress includes outer steel pipe 1, steel
The intelligent wireless strain monitoring on plate chassis 2, the resistance strain gage 3-6 for the strain transducer being integrated on steel plate chassis 2 and outside
Equipment.
As shown in figure 3, the intelligent wireless strain monitoring device includes signal input interface, signal conditioner, A/D conversions
Device, microcontroller and radio transmitting device.The output of the strain transducer is connected to signal input interface, signal conditioner
Output be connected to the input of A/D converter, the output of A/D converter is connected to the input of microcontroller, microcontroller it is defeated
Go out to be connected to the input of radio transmitting device.
When it is implemented, measure the initial stress values on steel plate chassis 2 first, and according to the Structure Calculation of scaffold normal
Under service condition, different operating can caused by stress variation value, set up stress variation early warning value accordingly, different early warning can be set
Rank.In the course of the work, when stress variation exceedes early warning value, alarm signal is sent to PC control terminals by system, this alarm
Signal includes alert levels, alert locations and stress variation information.Do not alarm generation when, PC control terminals can also ask to check
The real-time strain data and history warning message being stored in the intelligent wireless strain monitoring device.
Preferably, the strain transducer is resistance strain sensor.The resistance strain sensor uses resistance-strain
The change of the stress of piece 3-6 measurement steel plates chassis 2, and bridge circuit is used as measuring circuit.The bridge circuit is using half-bridge
Working method, including two identical half-bridge circuits, each half-bridge circuit include two identical resistance strain gages.Four
Resistance strain gage 3-6 is uniformly distributed, and is integrated on steel plate chassis 2.During work, relative foil gauge is accessed adjacent the two of electric bridge
Arm.The positional symmetry that two resistance strain gages due to accessing electric bridge integrate, stress is on the contrary, when foil gauge because stress produces deformation
When, electric bridge disequilibrium, so as to produce differential signal.This differential signal reflects the change of scaffold base chassis stress, connects
Enter intelligent wireless strain monitoring device.
The signal of the signal conditioner pair of strain sensors collection carries out error compensation and necessary enhanced processing, place
Signal access A/D converter after reason.
The A/D converter converts analog signals into data signal, is easy to signal transacting and transmission, preferably high-precision
Degree, the A/D converter of multichannel.The input of the output signal access microcontroller of A/D converter.
The microcontroller has data acquisition control function, can control the sample frequency of A/D converter, and to A/D
The data signal of converter output carries out digital filtering, removes noise.And then the microcontroller is counted accordingly to signal
According to processing, analysis judges whether stress variation exceedes corresponding early warning value, and result is passed through into nothing in the case where early warning occurs
Line Transmission system reports PC ends.Preferably, the microcontroller have storage control function, can store real-time strain data and
History warning message.
Embodiment 2
As Figure 1-3, the structure setting of a kind of jacket-type scaffold base for monitoring chassis stress of the present invention and should
With principle with embodiment 1, the strain transducer is resistance strain sensor, and uses bridge circuit as measuring circuit.It is described
Bridge circuit uses the working method of a quarter bridge, includes four identical a quarter bridge circuits, each a quarter bridge
Circuit includes a resistance strain gage, and four resistance strain gage 3-6 are uniformly distributed, are integrated on steel plate chassis 2.During work, often
Individual resistance strain gage accesses an a quarter bridge circuit, so as to measure the change of the stress of the different azimuth of steel plate chassis 2.
Embodiment 3
As Figure 1-3, the structure setting of a kind of jacket-type scaffold base for monitoring chassis stress of the present invention and should
With principle with embodiment 1, the strain transducer is resistance strain sensor, and uses bridge circuit as measuring circuit.It is described
Bridge circuit uses the working method of full-bridge, includes a full-bridge circuit.The full-bridge circuit includes four identical resistance should
Become piece 3-6, be uniformly distributed, be integrated on steel plate chassis 2.During work, relative foil gauge is accessed to the adjacent two-arm of electric bridge, made
Four measured signals are connected into two differential symmetrical full-bridge working forms.Because relative foil gauge stress is on the contrary, work as foil gauge
When producing deformation because of stress, electric bridge disequilibrium, so as to produce differential signal, intelligent wireless strain monitoring device is accessed.
Embodiment 4
As Figure 1-3, the structure setting of a kind of jacket-type scaffold base for monitoring chassis stress of the present invention and should
With principle with embodiment 1, the strain transducer is resistance strain sensor.As shown in figure 4, the resistance strain sensor makes
It is integrated on steel plate chassis 2, and is uniformly distributed with six resistance strain gage 3-8.The resistance strain sensor uses six four
/ mono- bridge, three half-bridges or a full-bridge add a kind of working method in a half-bridge.Using six 3-8 pairs of resistance strain gages
The covering on steel plate chassis 2 is wider, thus can improve the sensitivity to the monitoring of its stress variation.
Embodiment 5
As Figure 1-3, the structure setting of a kind of jacket-type scaffold base for monitoring chassis stress of the present invention and should
With principle with embodiment 1, the strain transducer is resistance strain sensor.As shown in figure 5, the resistance strain sensor makes
It is integrated on steel plate chassis 2, and is uniformly distributed with eight resistance strain gage 3-10.The resistance strain sensor uses eight four
A kind of working method in/mono- bridge, four half-bridges or two full-bridges.Using eight resistance strain gage 3-10 to steel plate chassis 2
Covering more comprehensively, thus the stress comprehensive monitoring of its all angles can further be improved and its stress variation is monitored
Sensitivity.
The invention is not restricted to above-mentioned embodiment, made any to above-mentioned 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 (11)
1. a kind of jacket-type scaffold base for monitoring chassis stress, including steel plate chassis, outer steel pipe, its feature exist
In, in addition to the strain transducer and the intelligent wireless strain monitoring device of outside being integrated on steel plate chassis.
2. the jacket-type scaffold base according to claim 1 for monitoring chassis stress, it is characterised in that described
Scaffold understructure form is jacket-type, and the outer steel pipe internal diameter is bigger 2mm than vertical rod external diameter, is inserted vertical rod during use outer
Cover in steel pipe.
3. the jacket-type scaffold base according to claim 1 for monitoring chassis stress, it is characterised in that described
Intelligent wireless strain monitoring device includes signal input interface, signal conditioner, A/D converter, microcontroller and wireless biography
Defeated device, the output of the strain transducer are connected to signal input interface, and the output of the signal conditioner is connected to A/D and turned
The input of parallel operation, the output of the A/D converter are connected to the input of microcontroller, and the output of the microcontroller is connected to nothing
The input of line transmitting device.
4. the jacket-type scaffold base according to claim 1 for monitoring chassis stress, it is characterised in that described
The integrated strain transducer of jacket-type scaffold base is resistance strain sensor.
5. the jacket-type scaffold base according to claim 4 for monitoring chassis stress, it is characterised in that described
Resistance strain sensor uses the change of strain gage testing steel plate chassis stress.
6. the jacket-type scaffold base according to claim 4 for monitoring chassis stress, it is characterised in that described
Resistance strain sensor uses bridge circuit as measuring circuit.
7. the jacket-type scaffold base according to claim 6 for monitoring chassis stress, it is characterised in that described
Bridge circuit is using a kind of working method in a quarter bridge, half-bridge, full-bridge.
8. the jacket-type scaffold base according to claim 5 for monitoring chassis stress, it is characterised in that described
Resistance strain gage is uniformly integrated on steel plate chassis.
9. the jacket-type scaffold base for monitoring chassis stress according to claim 7,8, it is characterised in that institute
The resistance strain gage included in half-bridge circuit is stated, relative foil gauge accesses the adjacent two-arm of electric bridge.
10. the jacket-type scaffold base for monitoring chassis stress according to claim 7,8, it is characterised in that
The resistance strain gage included in the full-bridge circuit, relative foil gauge access the adjacent two-arm of electric bridge.
11. the jacket-type scaffold base for monitoring chassis stress according to claim 5,8-10, its feature exist
In the quantity of the resistance strain gage can expand to six, eight by four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454999.7A CN107882318A (en) | 2017-12-28 | 2017-12-28 | The jacket-type scaffold base of chassis stress can be monitored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454999.7A CN107882318A (en) | 2017-12-28 | 2017-12-28 | The jacket-type scaffold base of chassis stress can be monitored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107882318A true CN107882318A (en) | 2018-04-06 |
Family
ID=61770380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711454999.7A Pending CN107882318A (en) | 2017-12-28 | 2017-12-28 | The jacket-type scaffold base of chassis stress can be monitored |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107882318A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948525A (en) * | 2020-09-18 | 2020-11-17 | 珠海市精实测控技术有限公司 | Method for adjusting elastic deformation of frame plate in FCT (Flexible Circuit test) tester |
| WO2023172152A1 (en) * | 2022-03-07 | 2023-09-14 | Scaffolder Energy Sp. Z O.O. | Scaffolding load control and monitoring device and system for such purposes |
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| 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 |
| CN203893969U (en) * | 2014-06-12 | 2014-10-22 | 北京盛明建达工程技术有限公司 | Scaffold vertical rod load monitoring device |
| CN204212383U (en) * | 2014-10-29 | 2015-03-18 | 中建新疆建工集团第一建筑工程有限公司 | Plug-in type steel pipe scaffold |
| JP2015176524A (en) * | 2014-03-18 | 2015-10-05 | Ａｃｔｕｎｉ株式会社 | Intrusion detection system for building scaffold |
| CN207812987U (en) * | 2017-12-28 | 2018-09-04 | 晋江万芯晨电子科技有限公司 | The jacket-type scaffold pedestal of chassis stress can be monitored |
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2017
- 2017-12-28 CN CN201711454999.7A patent/CN107882318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2015176524A (en) * | 2014-03-18 | 2015-10-05 | Ａｃｔｕｎｉ株式会社 | Intrusion detection system for building scaffold |
| 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 |
| CN203893969U (en) * | 2014-06-12 | 2014-10-22 | 北京盛明建达工程技术有限公司 | Scaffold vertical rod load monitoring device |
| CN204212383U (en) * | 2014-10-29 | 2015-03-18 | 中建新疆建工集团第一建筑工程有限公司 | Plug-in type steel pipe scaffold |
| CN207812987U (en) * | 2017-12-28 | 2018-09-04 | 晋江万芯晨电子科技有限公司 | The jacket-type scaffold pedestal of chassis stress can be monitored |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111948525A (en) * | 2020-09-18 | 2020-11-17 | 珠海市精实测控技术有限公司 | Method for adjusting elastic deformation of frame plate in FCT (Flexible Circuit test) tester |
| CN111948525B (en) * | 2020-09-18 | 2022-08-30 | 珠海市精实测控技术有限公司 | Method for adjusting elastic deformation of frame plate in FCT (Flexible Circuit test) tester |
| WO2023172152A1 (en) * | 2022-03-07 | 2023-09-14 | Scaffolder Energy Sp. Z O.O. | Scaffolding load control and monitoring device and system for such purposes |
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