CN207812987U - The jacket-type scaffold pedestal of chassis stress can be monitored - Google Patents
The jacket-type scaffold pedestal of chassis stress can be monitored Download PDFInfo
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- CN207812987U CN207812987U CN201721871377.XU CN201721871377U CN207812987U CN 207812987 U CN207812987 U CN 207812987U CN 201721871377 U CN201721871377 U CN 201721871377U CN 207812987 U CN207812987 U CN 207812987U
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Abstract
The utility model is related to scaffold chassis technology fields, particular for jacket-type scaffold pedestal, it is related to a kind of jacket-type scaffold pedestal monitoring chassis stress, further include the intelligent wireless strain monitoring device of the strain transducer being integrated on steel plate chassis and outside including steel plate chassis, outer steel pipe.The strain transducer is resistance strain sensor, uses bridge circuit for measuring circuit, operating mode can be one kind in a quarter bridge, half-bridge or full-bridge.The information of strain transducer acquisition inputs intelligent wireless strain monitoring device by signal input interface, after signal condition, A/D conversions, analyzing processing is carried out by microcontroller, and real time data and warning message are sent to PC control terminals by radio transmitting device, to realize the real-time monitoring to scaffold pedestal chassis stress variation.The utility model can find security risk of scaffold during installation and construction usage in time, greatly facilitate the security monitoring to scaffold.
Description
Technical field
The utility model is related to scaffold chassis technology fields, and particular for jacket-type scaffold pedestal, being related to one kind can
Monitor the jacket-type scaffold pedestal of chassis stress.
Background technology
Scaffold is indispensable temporary facility in construction, be for ensure high-rise working safely, be smoothed out and apply
Work and the workbench or operation path set up have wide in the installation of structure construction, decoration construction and equipment pipe
General application.
The scaffold safety accident 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 upright bar sets pedestal, can anti-sliding stop and uneven subsidence.To the stress variation of scaffold pedestal
It is monitored in real time, early warning can be made when big variation occurs for pedestal stress, and then timely to the corresponding site of scaffold
It checked, adjusted, overall collapse or the partial collapse for preventing scaffold avoid casualties to reduce safety accident.
Therefore, other than being set up in strict accordance with regulation and using scaffold, during scaffold building and use, to its bottom
It is also the important measures for preventing and reducing safety accident that seat, which monitor in real time,.
Utility model content
In order to prevent collapsing for scaffold, the utility model provides a kind of jacket-type foot hand monitoring chassis stress
Frame pedestal is monitored in real time for the stress variation on its chassis, and on chassis, stress occurs to make early warning when big variation.
In order to solve the above technical problems, the utility model takes following technical scheme：One kind can monitor chassis stress
Jacket-type scaffold pedestal, including steel plate chassis, outer steel pipe, the strain transducer being integrated on steel plate chassis and outside
Intelligent wireless strain monitoring device.
Specifically, the jacket-type scaffold pedestal, outer steel pipe internal diameter is bigger 2mm than upright bar outer diameter, and when use will stand
Bar is inserted into 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 pedestal is resistance strain sensor.
Further, the resistance strain sensor uses the change of strain gage testing scaffold pedestal chassis stress
Change.
Preferably, the resistance strain sensor uses bridge circuit for 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 include 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 identical
Resistance strain gage is uniformly distributed, and is integrated on steel plate chassis, and opposite 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 acquisition carry out error compensation and necessary put
Big processing.
Preferably, the A/D converter converts analog signals into digital signal, is convenient for signal processing and transmission.
Preferably, the microcontroller carries out digital filtering, analyzing processing to the digital signal that A/D converter exports, and
It is sent by radio transmitting device.
The utility model has the beneficial effects that：By integrating strain transducer on scaffold pedestal chassis and connecting wireless
Intelligent strain monitoring device monitors the stress variation on scaffold pedestal chassis in real time, and will by wireless transmitting system
Real time data and warning message are sent to PC control terminals, to find peace of scaffold during installation and construction usage in time
Full hidden danger greatly facilitates the security monitoring to scaffold.
Description of the drawings
Fig. 1 is the structural schematic diagram for the jacket-type scaffold pedestal that the utility model can monitor chassis stress.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the principles of the present invention structure diagram.
Fig. 4 is the structure top view for the jacket-type scaffold pedestal that chassis integrates six resistance strain gages in embodiment 4.
Fig. 5 is the structure top view for the jacket-type scaffold pedestal that chassis integrates eight resistance strain gages in embodiment 5.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing.
Embodiment 1
Jacket-type scaffold understructure such as Fig. 1-2 of chassis stress can be monitored in the utility model, this practicality is new
Implementation principle structure such as Fig. 3 of type.
As shown in Figs. 1-2, the jacket-type scaffold pedestal for monitoring chassis stress includes outer steel pipe 1, steel
The intelligent wireless strain monitoring of board bottom disk 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, the initial stress values on steel plate chassis 2 are measured first, and according to the Structure Calculation of scaffold normal
Under service condition, different operation can caused by stress variation value, set up stress variation early warning value accordingly, different early warning can be set
Rank.During the work time, when stress variation is more than 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
Piece 3-6 measures the variation of 2 stress of steel plate chassis, and uses bridge circuit for 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.When work, opposite foil gauge is accessed adjacent the two of electric bridge
Arm.Due to the positional symmetry that two resistance strain gages of access electric bridge are integrated, stress is on the contrary, when foil gauge because stress generates deformation
When, electric bridge disequilibrium, to generate differential signal.This differential signal reflects the variation of scaffold pedestal chassis stress, connects
Enter intelligent wireless strain monitoring device.
The signal of the signal conditioner pair of strain sensors acquisition carries out error compensation and necessary enhanced processing, place
Signal after reason accesses A/D converter.
The A/D converter converts analog signals into digital signal, is convenient for signal processing and transmission, preferably high-precision
The A/D converter of degree, multichannel.The input terminal of the output signal access microcontroller of A/D converter.
The microcontroller has the function of data acquisition control, can control the sample frequency of A/D converter, and to A/D
The digital signal of converter output carries out digital filtering, removes noise.In turn, the microcontroller counts signal accordingly
According to processing, analyze and determine whether stress variation is more than corresponding early warning value, and result is passed through into nothing in the case where early warning occurs
Line Transmission system is reported to the ends PC.Preferably, the microcontroller have storage control function, can store real-time strain data and
History warning message.
Embodiment 2
As shown in Figs. 1-3, a kind of structure for the jacket-type scaffold pedestal monitoring chassis stress of the utility model
With embodiment 1, the strain transducer is resistance strain sensor for setting and application principle, and uses bridge circuit to measure electricity
Road.The bridge circuit uses the working method of a quarter bridge, including four identical a quarter bridge circuits, each four points
One of bridge circuit include a resistance strain gage, four resistance strain gage 3-6 are uniformly distributed, are integrated on steel plate chassis 2.Work
When, each resistance strain gage accesses an a quarter bridge circuit, to measure the stress variation of 2 different direction of steel plate chassis.
Embodiment 3
As shown in Figs. 1-3, a kind of structure for the jacket-type scaffold pedestal monitoring chassis stress of the utility model
With embodiment 1, the strain transducer is resistance strain sensor for setting and application principle, and uses bridge circuit to measure electricity
Road.The bridge circuit uses the working method of full-bridge, including a full-bridge circuit.The full-bridge circuit includes four identical
Resistance strain gage 3-6, is uniformly distributed, and is integrated on steel plate chassis 2.When work, opposite foil gauge is accessed into the adjacent of electric bridge
Two-arm makes four measured signals be connected into two differential symmetrical full-bridge working forms.Since opposite foil gauge stress is on the contrary, work as
When foil gauge generates deformation because of stress, electric bridge disequilibrium, to generate differential signal, access intelligent wireless strain monitoring is set
It is standby.
Embodiment 4
As shown in Figs. 1-3, a kind of structure for the jacket-type scaffold pedestal monitoring chassis stress of the utility model
With embodiment 1, the strain transducer is resistance strain sensor for setting and application principle.As shown in figure 4, the resistance-strain
Sensor is integrated in using six resistance strain gage 3-8 on steel plate chassis 2, and is uniformly distributed.The resistance strain sensor is adopted
Add a kind of working method in a half-bridge with six a quarter bridges, three half-bridges or a full-bridge.It is answered using six resistance
It is wider to the covering on steel plate chassis 2 to become piece 3-8, thus the sensitivity monitored to its stress variation can be improved.
Embodiment 5
As shown in Figs. 1-3, a kind of structure for the jacket-type scaffold pedestal monitoring chassis stress of the utility model
With embodiment 1, the strain transducer is resistance strain sensor for setting and application principle.As shown in figure 5, the resistance-strain
Sensor is integrated in using eight resistance strain gage 3-10 on steel plate chassis 2, and is uniformly distributed.The resistance strain sensor is adopted
With a kind of working method in eight a quarter bridges, four half-bridges or two full-bridges.Using eight 3-10 pairs of resistance strain gages
The covering on steel plate chassis 2 more comprehensively, thus can further increase to its stress the stress comprehensive monitoring of its all angles
The sensitivity of variation monitoring.
The present invention is not limited to the above embodiments, and those skilled in the art are made any to the above embodiment
Conspicuously improved or change, all protection domain without departing from the design of the utility model and appended claims.
Claims (8)
1. a kind of jacket-type scaffold pedestal monitoring chassis stress, including steel plate chassis, outer steel pipe, feature exist
In, further include the strain transducer being integrated on steel plate chassis and outside intelligent wireless strain monitoring device.
2. the jacket-type scaffold pedestal according to claim 1 for monitoring chassis stress, which is characterized in that described
Scaffold understructure form is jacket-type, and the outer steel pipe internal diameter is bigger 2mm than upright bar outer diameter, is inserted into upright bar when use outer
It covers in steel pipe.
3. the jacket-type scaffold pedestal according to claim 1 for monitoring chassis stress, which is characterized in that described
Intelligent wireless strain monitoring device includes signal input interface, signal conditioner, A/D converter, microcontroller and wireless biography
The output of defeated device, the strain transducer is connected to signal input interface, and the output of the signal conditioner is connected to A/D and turns
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 pedestal according to claim 1 for monitoring chassis stress, which is characterized in that described
Strain transducer is resistance strain sensor.
5. the jacket-type scaffold pedestal according to claim 4 for monitoring chassis stress, which is characterized in that described
Resistance strain sensor uses the variation of strain gage testing steel plate chassis stress.
6. the jacket-type scaffold pedestal according to claim 4 for monitoring chassis stress, which is characterized in that described
Resistance strain sensor uses bridge circuit for measuring circuit.
7. the jacket-type scaffold pedestal according to claim 6 for monitoring chassis stress, which is characterized 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 pedestal according to claim 5 for monitoring chassis stress, which is characterized in that described
Resistance strain gage is uniformly integrated on steel plate chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721871377.XU CN207812987U (en) | 2017-12-28 | 2017-12-28 | The jacket-type scaffold pedestal of chassis stress can be monitored |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721871377.XU CN207812987U (en) | 2017-12-28 | 2017-12-28 | The jacket-type scaffold pedestal of chassis stress can be monitored |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207812987U true CN207812987U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721871377.XU Active CN207812987U (en) | 2017-12-28 | 2017-12-28 | The jacket-type scaffold pedestal of chassis stress can be monitored |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882318A (en) * | 2017-12-28 | 2018-04-06 | 晋江万芯晨电子科技有限公司 | The jacket-type scaffold base of chassis stress can be monitored |
| CN111397784A (en) * | 2020-04-20 | 2020-07-10 | 长江三峡通航管理局 | Online monitoring system and method for mooring force of floating mooring columns of high-lift lock |
-
2017
- 2017-12-28 CN CN201721871377.XU patent/CN207812987U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882318A (en) * | 2017-12-28 | 2018-04-06 | 晋江万芯晨电子科技有限公司 | The jacket-type scaffold base of chassis stress can be monitored |
| CN111397784A (en) * | 2020-04-20 | 2020-07-10 | 长江三峡通航管理局 | Online monitoring system and method for mooring force of floating mooring columns of high-lift lock |
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