CN106906854A - Monitoring device and construction monitoring component - Google Patents
Monitoring device and construction monitoring component Download PDFInfo
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- CN106906854A CN106906854A CN201710144315.7A CN201710144315A CN106906854A CN 106906854 A CN106906854 A CN 106906854A CN 201710144315 A CN201710144315 A CN 201710144315A CN 106906854 A CN106906854 A CN 106906854A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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Abstract
The invention provides a kind of monitoring device and construction monitoring component, wherein, monitoring device includes obliquity sensor, displacement transducer and connection pedestal, and obliquity sensor is connected by connecting pedestal with displacement transducer.Wherein, obliquity sensor is arranged on the first object for needing to monitor inclination angle, and displacement transducer is arranged on the second object, to monitor the relative displacement between the first object and the second object.By the combination of obliquity sensor, connection pedestal and displacement transducer, the relative displacement that the monitoring device can simultaneously between the change at monitoring object inclination angle and two articles, so as to enrich the function of monitoring device, expands the scope of application.
Description
Technical field
The present invention relates to signal monitoring field, in particular to a kind of monitoring device and construction monitoring component.
Background technology
During excavation pit, in order to prevent foundation ditch from collapsing, can stull be set up in foundation ditch to consolidate the edge of foundation ditch.
Connected by stake between two neighboring stull.With the excavation of foundation ditch, or because of live blast working, stake may be caused to incline
Tiltedly, stake will produce gap with the junction of stull, gradually be diffused into when stake tilts to the gap between a certain value or stake and stull
A certain value, stake cannot be played a part of to connect stull, so as to topple in the presence of stake or risk that stull is dropped, when foundation ditch edge also
Collapsed without may also result in foundation ditch edge when consolidating, the life security of this personnel to being constructed in foundation ditch causes very big prestige
The side of body.
Therefore, when gap occurs in the junction of stake and stull, it is necessary between the inclination angle of monitoring stake and stake and stull
The situation of change in gap.
Existing monitoring device, such as crack gauge can only monitor the situation of change in gap, it is impossible to the change of pitch angle of monitoring object.
Needing the change of pitch angle of monitoring object also needs additionally to set tilt angle monitoring device.This not only increases the number of monitoring device, also increases
The arrangement time of sensor is added.
The content of the invention
It is a primary object of the present invention to provide a kind of monitoring device and construction monitoring component, to solve to supervise in the prior art
Survey apparatus function is single, narrow application range problem.
To achieve these goals, according to an aspect of the invention, there is provided a kind of monitoring device, including：Inclination angle passes
Sensor, displacement transducer and connection pedestal, obliquity sensor are connected by connecting pedestal with displacement transducer.Wherein, inclination angle passes
Sensor is arranged on the first object for needing to monitor inclination angle, and displacement transducer is arranged on the second object, to monitor the first object
With the relative displacement between the second object.
Further, position-movable setting of the displacement transducer relative to connection pedestal.
Further, displacement transducer is slided along the circumferential of connection pedestal.
Further, annular groove is offered on connection pedestal, is provided with annular groove for connecting with displacement transducer
At least one connector for connecing, connector can be slided along annular groove, and displacement transducer is one or more, works as displacement sensing
When device is for multiple, multiple connectors are corresponded with multiple displacement transducers and set.
Further, connect pedestal is circumferentially provided with angle index portion.
Further, it is additionally provided with annular groove for the first fixation that pedestal is fixed on the first object will to be connected
Part.
Further, monitoring device also includes support member, and support member is arranged on connection pedestal to support obliquity sensor.
Further, support member includes many support bars, and obliquity sensor is fixed on connection pedestal by support bar.
Further, obliquity sensor includes the first housing, pressure transmission portion and monitoring portion, and the first housing is arranged on connection pedestal
On, it is provided with pressure unit in the cavity of the first housing；The two ends in pressure transmission portion contact with pressure unit and monitoring portion respectively, will pressure
The pressure transmission that portion applies is in monitoring portion.Wherein, when the inclination angle of the first object changes, pressure unit is applied to pressure transmission portion
Pressure also can accordingly change, monitoring portion is by the change of pitch angle of monitoring the change of pressure to monitor the first object.
Further, the upper and lower ends of cavity are blocked to form one section of confined space by flexible blockage part respectively, closed
Be filled with liquid in space, liquid and underlying flexible blockage part form pressure unit, and flexible blockage part away from liquid
Side be connected with pressure transmission portion.
Further, monitoring portion includes：The first cantilever beam below pressure transmission portion, the first cantilever beam is arranged on first shell
On body, pressure transmission portion presses to the first cantilever beam；First stress grating, is arranged on the upper surface of the first cantilever beam；Second stress light
Grid, are arranged on the lower surface of the first cantilever beam.
Further, displacement transducer includes：Fixed pedestal；Second housing, the second housing is arranged on fixed pedestal, and
The two ends of the second housing offer the first via and the second via respectively；Connecting rod, the first end of connecting rod connects with pedestal is connected
Connect, the second end of connecting rod passes through the first via of the second housing；Spring, the first end of spring connects with the second end of connecting rod
Connect；Second cantilever beam, the first end of the second cantilever beam is fixed on the inwall of the second housing, the second end of the second cantilever beam and bullet
The second end connection of spring, the second cantilever beam bends under the pulling force effect of spring；Tertiary stress grating, is arranged on the second cantilever beam
On, to monitor the deformation of the second cantilever beam；Optical fiber, the first end of optical fiber passes through second via and and tertiary stress of the second housing
Grating is connected, and the second end of optical fiber is connected with fiber Bragg grating (FBG) demodulator.
Further, be provided with the second fixture for fixed pedestal being fixed on the second object on fixed pedestal.
According to another aspect of the present invention, a kind of construction monitoring component is additionally provided, including：At least one crossbeam, it is horizontal
Erection is in the upper edge of foundation ditch；An at least pile, the bottom of stake is supported on the bottom of foundation ditch, and the top of stake is connected with crossbeam；
Monitoring device, monitoring device is above-mentioned monitoring device, and the obliquity sensor of monitoring device is arranged in stake, the position of monitoring device
Displacement sensor is arranged on crossbeam, to monitor the gap situation of change between crossbeam and stake.
Apply the technical scheme of the present invention, when being monitored, obliquity sensor is arranged on together with connection pedestal needs prison
Survey to monitor the change of pitch angle of the first object on first object at inclination angle, displacement transducer is arranged on the second object, with reference to even
Pedestal is connect to monitor relative displacement between the first object and the second object.By obliquity sensor, connection pedestal and displacement sensing
The combination of device, the relative displacement that the monitoring device can simultaneously between the change at monitoring object inclination angle and two articles, so that abundant
The function of monitoring device, expands the scope of application.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention is further detailed explanation.
Brief description of the drawings
The Figure of description for constituting a part of the invention is used for providing a further understanding of the present invention, of the invention to show
Meaning property and its illustrates, for explaining the present invention, not constitute inappropriate limitation of the present invention embodiment.In the accompanying drawings：
Fig. 1 shows the schematic diagram of the embodiment of monitoring device of the invention and construction monitoring component；
Fig. 2 shows the structural representation of the embodiment of the monitoring device in Fig. 1；
Fig. 3 shows the part-structure schematic diagram of the monitoring device in Fig. 2.
Wherein, above-mentioned accompanying drawing is marked including the following drawings：
10th, obliquity sensor；12nd, the first housing；121st, cable-through hole；13rd, liquid；14th, flexible blockage part；15th, first hangs
Arm beam；16th, the first stress grating；17th, the second stress grating；20th, displacement transducer；21st, fixed pedestal；211st, second fix
Part；22nd, the second housing；23rd, connecting rod；24th, spring；25th, the second cantilever beam；26th, tertiary stress grating；27th, optical fiber；30th, even
Connect pedestal；31st, annular groove；32nd, connector；33rd, the first fixture；34th, support bar；1st, crossbeam；2nd, stake.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Term can exchange in the appropriate case, so as to embodiments of the invention described herein.Additionally, term " including " and " tool
Have " and their any deformation, it is intended that covering is non-exclusive to be included, for example, containing series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
It is listing to Chu or for these processes, method, product or other intrinsic steps of equipment or unit.
In order to solve the problems, such as monitoring device unitary function of the prior art, can be supervised simultaneously the invention provides one kind
Survey the monitoring device and the construction monitoring component using the monitoring device of inclination angle and change in displacement.
As shown in figure 1, construction monitoring component includes at least one crossbeam 1, at least a pile 2 and monitoring device, the frame of crossbeam 1
The upper edge of foundation ditch is located at, the bottom of stake 2 is supported on the bottom of foundation ditch, and the top of stake 2 is connected with crossbeam 1, under monitoring device is
The monitoring device stated, the obliquity sensor 10 of monitoring device is arranged in stake 2, and the displacement transducer 20 of monitoring device is arranged on horizontal stroke
In support, to monitor the gap situation of change between stull and stake 2.Can be with indirect monitoring foundation ditch edge by the construction monitoring component
Stability.
As depicted in figs. 1 and 2, the monitoring device includes obliquity sensor 10, displacement transducer 20 and connection pedestal 30, inclines
Angle transducer 10 is connected by connecting pedestal 30 with displacement transducer 20.When being monitored, by obliquity sensor 10 together with connection
Pedestal 30 is arranged on to monitor the change of pitch angle of the first object on the first object for needing to monitor inclination angle, and displacement transducer 20 is set
On the second object, with reference to connection pedestal 30 monitoring the relative displacement between the first object and the second object.Passed by inclination angle
The combination of sensor 10, connection pedestal 30 and displacement transducer 20, the monitoring device can the change at monitoring object inclination angle simultaneously with
Relative displacement between two articles, so as to enrich the function of monitoring device, expands the scope of application.
In the present embodiment, when the stability of foundation ditch is monitored, obliquity sensor 10 is arranged on together with connection pedestal 30
In stake, displacement transducer 20 is arranged in stull, and obliquity sensor 10 is used to the change of pitch angle of monitoring stake, the knot of displacement transducer 20
The change in the gap between the connection monitoring stake of pedestal 30 and stull is closed, thus can the inclination angle of monitoring stake and stake and stull simultaneously
Between gap situation of change.
Optionally, position-movable setting of the displacement transducer 20 relative to connection pedestal 30.Consider that stake is horizontal with multiple
The situation of connection is supportted, the now stull on different directions is different because of the size in the gap between the inclination and stake of stake, when need
, it is necessary to setting multiple displacement transducers 20 carries out multi-faceted monitoring when the gap for monitoring different directions changes, to improve prison
Survey the monitoring accuracy and reliability of device.
Optionally, displacement transducer 20 can be slided along the circumference of connection pedestal 30.Because connection pedestal 30 is arranged on stake
On, that is to say, that displacement transducer 20 can monitor the change in the gap between stull and stake on phase different directions.
In order to realize that above-mentioned displacement transducer 20 can be slided along the circumferential of connection pedestal 30, opened up on connection pedestal 30
There is annular groove 31.At least one connector 32 for being connected with displacement transducer 20, connection are provided with annular groove 31
Part 32 can be slided along annular groove 31, and displacement transducer 20 is one or more, multiple when displacement transducer 20 is for multiple
Connector 32 is corresponded with multiple displacement transducers 20 and set.It has been mentioned hereinbefore that can by displacement transducer 20 be arranged on
In that stull of gap change maximum between stake, when any bar seam in a plurality of gap for being difficult to determine between multiple stulls and stake
Gap change is maximum or needs the gap monitored between multiple stulls and stake to change simultaneously when, position can be respectively provided with multiple stulls
Displacement sensor 20, to monitor the change in a plurality of gap, so as to improve degree of safety.In the present embodiment, connector 32 can be buckle
Be connected to displacement transducer 20 on connection pedestal 30 by fixed screw, screw fixed by snap, and buckle fixed screw is connected to
The edge of annular groove 31 simultaneously can circumferentially be slided along it.
Further, connect pedestal 30 is circumferentially provided with angle index portion, so it is known that each displacement transducer 20
The direction of relative connection pedestal 30, and then know the direction of the stull relative to stake at the place of each displacement transducer 20, consequently facilitating
Gap to different directions is monitored.
It is additionally provided with annular groove 31 for the first fixture 33 that pedestal 30 is fixed on the first object will to be connected.
In the present embodiment, multiple fixing threaded holes are offered in annular groove 31, screw is through fixing threaded hole so as to connection pedestal 30 be consolidated
It is scheduled in stake.
As shown in Fig. 2 monitoring device also includes support member, support member is arranged on connection pedestal 30 to support inclination angle to sense
Device 10.Wherein, support member includes many support bars 34, and obliquity sensor 10 is fixed on connection pedestal 30 by support bar 34.
Specifically, in the present embodiment, three support bars 34 are evenly distributed on connection pedestal 30 along the circumference of obliquity sensor 10,
And one end of three support bars 34 is gathered and is connected with one end of obliquity sensor 10, the other end of three support bars 34 is fixed on
On annular groove, obliquity sensor 10 is held so that obliquity sensor 10 keeps with pedestal 30 is connected by three support bars 34
Vertically.
As a kind of optional implementation method, can also be opened up for inserting at least in the center position on connection pedestal 30
The fixing hole of part obliquity sensor 10, specifically, fixing hole can be screwed hole, can on obliquity sensor 10 company of being threaded
Socket part, is connected through a screw thread portion and coordinates with fixed angle sensor 10 with screwed hole.
As shown in figure 3, obliquity sensor 10 includes the first housing 12, pressure transmission portion and monitoring portion.First housing 12 is arranged on
On connection pedestal 30, pressure unit is provided with the cavity of the first housing 12；The two ends in pressure transmission portion respectively with pressure unit and monitoring portion
Contact, in the pressure transmission that pressure unit is applied to monitoring portion.When the inclination angle of the first object changes, pressure unit applies
Pressure to pressure transmission portion also can accordingly be changed, and monitoring portion is become by monitoring the change of pressure with monitoring the inclination angle of the first object
Change.For example, in the change of pitch angle of monitoring stake, with the change of pitch angle of stake, the pressure that pressure unit is applied to pressure transmission portion also can phase
Should change, so, the change of the pressure that monitoring portion monitors can just react the change of pitch angle of stake.
Specifically, the bottom of the first housing 12 has cable-through hole 121, and the cable-through hole is used for the line in the first housing 12
Pass goes out.
Optionally, the upper and lower ends of cavity are blocked by flexible blockage part 14 to form one section of confined space respectively, closed
It is filled with liquid 13 in space, liquid 13 and underlying flexible blockage part 14 form pressure unit, and flexible blockage part 14
It is connected with pressure transmission portion away from the side of liquid 13.In the present embodiment, flexible blockage part 14 is diaphragm, and liquid 13 is hydraulic oil,
Pressure transmission portion is the pressure transmission bar being connected with diaphragm.During the change of pitch angle of monitoring stake, obliquity sensor 10 is first vertically arranged connection
On pedestal 30, now, the diaphragm positioned at cavity lower end should be subject to the pressure of hydraulic oil and produce deformation, and the now deformation of diaphragm
Amount is maximum, diaphragm is recessed and drive connected pressure transmission bar to move down and push monitoring portion, monitoring portion can be monitored suffered by it
Push power.Obliquity sensor 10 is fixed to the top of stake, if stake is not inclined, the deformation quantity of diaphragm together with connection pedestal 30
There will be no change, what monitoring portion monitored push power is also just not changed in；If stake has inclination and inclination angle is in change, liquid
The effective length pressed oil in cavity can also produce change, and hydraulic oil also can accordingly change to the pressure of diaphragm, the deformation of diaphragm
Amount is just also corresponding to be changed, and pressure transmission bar pushes power and also will accordingly change to monitoring portion, and what final monitoring portion monitored suffered supports
The change of thrust.Change and the relation of the change that power is pushed suffered by monitoring portion as stake can be drawn by physics relationships.
Monitoring portion includes the first cantilever beam 15 below pressure transmission portion, the first stress grating 16 and the second stress grating
17.First cantilever beam 15 is arranged on the first housing 12, and pressure transmission portion presses to the first cantilever beam 15；First stress grating 16 and
Two stress gratings 17 are separately positioned on the upper and lower surface of the first cantilever beam 15.As previously described, the inclination angle of stake changes, and passes
The amount of moving down of splenium also can accordingly change, the first cantilever beam 15 by pressure transmission portion pushed power can flexural deformation, and with pushing
The amount of bow of first cantilever beam of change 15 of power also can accordingly change.Positioned at the of the upper and lower surface of the first cantilever beam 15
The change for causing centre wavelength because of the change of suffered external force of one stress grating 16 and the second stress grating 17, namely wavelength drift
Move.By monitor the first stress grating 16 and the second stress grating 17 situation of change can monitoring stake change of pitch angle situation.
However, also have the change of temperature except the change of power due to the factor for causing grating wavelength to drift about, in the first cantilever
The relative position on the upper and lower surface of beam 15 is respectively provided with the first stress grating 16, the second stress grating 17 and can just eliminate temperature
Change the influence to grating wavelength.
Displacement transducer 20 includes fixed pedestal 21, the second housing 22, connecting rod 23, spring 24, the second cantilever beam 25, the
Three stress gratings 26 and optical fiber 27.Second housing 22 is arranged on fixed pedestal 21, and the two ends of the second housing 22 open up respectively
There are the first via and the second via；The first end of connecting rod 23 is connected with pedestal 30 is connected, and the second end of connecting rod 23 is through the
First via of two housings 22；The first end of spring 24 is connected with the second end of connecting rod 23；The first end of the second cantilever beam 25
It is fixed on the inwall of the second housing 22, the second end of the second cantilever beam 25 is connected with the second end of spring 24, the second cantilever beam
25 bend under the pulling force effect of spring 24；Tertiary stress grating 26 is arranged on the second cantilever beam 25, to monitor the second cantilever
The deformation of beam 25；The first end of optical fiber 27 passes through the second via of the second housing 22 and is connected with tertiary stress grating 26, optical fiber
27 the second end is connected with fiber Bragg grating (FBG) demodulator.
During gap between monitoring stake and stull, obliquity sensor 10 is fixed in stake together with connection pedestal 30, by position
The fixed pedestal 21 of displacement sensor 20 is fixed in stull, and spring 24 is applied to draw with the connecting rod 23 for being connected the connection of pedestal 30
Power, makes the second cantilever beam 25 being connected with spring 24 produce bending, is now arranged on the tertiary stress light on the second cantilever beam 25
Grid 26 are acted on by external force.When the gap between stake and stull produces change, connecting rod 23 occurs to the pulling force of spring 24
Change, and then change the amount of bow of the second cantilever beam 25 being connected with spring 24, so that suffered by tertiary stress grating 26
External force is changed and causes wave length shift, and the wave length shift situation of tertiary stress grating 26 is monitored by fiber Bragg grating (FBG) demodulator
Just can know that the gap change between stake and stull.
It should be noted that the wavelength of tertiary stress grating 26 can also be varied from because of temperature change, the first stress light
Grid and the second stress grating pass through that while differential type temperature-compensating environment temperature can be measured, and can reject tertiary stress grating
Because of the error that temperature change causes, so as to improve monitoring accuracy.In the present embodiment, can be by the first stress grating 16, second
Stress grating 17 is connected with optical fiber 27 again after being connected with tertiary stress grating 26.In order to protect optical fiber 27, in the second housing 22
Outside optical fiber 27 uses triumphant dress optical fiber.
Optionally, be provided with the second fixture for fixed pedestal 21 being fixed on second object on fixed pedestal 21
211.Second fixture 211 can be fixing threaded hole and screw.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
When being monitored, obliquity sensor 10 is arranged on the first object for needing to monitor inclination angle together with connection pedestal 30
To monitor the change of pitch angle of the first object, displacement transducer 20 is arranged on the second object, with reference to connection pedestal 30 monitoring the
The change of distance between one object and the second object.By the knot of obliquity sensor 10, connection pedestal 30 and displacement transducer 20
Close, the relative displacement that the monitoring device can simultaneously between the change at monitoring object inclination angle and two articles, so as to enrich monitoring
The function of device, expands the scope of application.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (14)
1. a kind of monitoring device, it is characterised in that including：
Obliquity sensor (10)；
Displacement transducer (20)；
Connection pedestal (30), the obliquity sensor (10) is connected by connection pedestal (30) with institute's displacement sensors (20)
Connect；
Wherein, the obliquity sensor (10) is arranged on the first object for needing to monitor inclination angle, institute's displacement sensors (20)
It is arranged on the second object, to monitor the relative displacement between first object and second object.
2. monitoring device according to claim 1, it is characterised in that institute's displacement sensors (20) is relative to the connection
Pedestal (30) are set position-movablely.
3. monitoring device according to claim 2, it is characterised in that institute's displacement sensors (20) is along the connection pedestal
(30) circumferential slip.
4. monitoring device according to claim 3, it is characterised in that offer annular groove on the connection pedestal (30)
(31) at least one connector for being connected with institute's displacement sensors (20), is provided with the annular groove (31)
(32), the connector (32) can be slided along the annular groove (31), and institute's displacement sensors (20) is one or more,
When institute's displacement sensors (20) is for multiple, a pair of multiple connectors (32) and multiple institutes' displacement sensors (20)
Should set.
5. the monitoring device according to claim 3 or 4, it is characterised in that connection pedestal (30) are circumferentially provided with
Angle index portion.
6. monitoring device according to claim 4, it is characterised in that be additionally provided with the annular groove (31) for will
Connection pedestal (30) is fixed to the first fixture (33) on first object.
7. monitoring device according to claim 1, it is characterised in that the monitoring device also includes support member, the branch
Support member is arranged on connection pedestal (30) to support the obliquity sensor (10).
8. monitoring device according to claim 7, it is characterised in that the support member includes many support bars (34), institute
Obliquity sensor (10) is stated to be fixed on connection pedestal (30) by the support bar (34).
9. monitoring device according to claim 1, it is characterised in that the obliquity sensor (10) includes：
First housing (12), first housing (12) is arranged on connection pedestal (30), first housing (12)
Pressure unit is provided with cavity；
Pressure transmission portion；
Monitoring portion, the two ends in the pressure transmission portion are contacted with the pressure unit and the monitoring portion respectively, and the pressure unit is applied
Plus pressure transmission in the monitoring portion；
Wherein, when the inclination angle of first object changes, the pressure that the pressure unit is applied to the pressure transmission portion also can
Accordingly change, the monitoring portion is by the change of pitch angle of monitoring the change of the pressure to monitor first object.
10. monitoring device according to claim 9, it is characterised in that the upper and lower ends of the cavity are respectively by flexibility
Closeouts (14) closure is filled with liquid (13) to form one section of confined space in the confined space, the liquid (13) with
The underlying flexible blockage part (14) forms the pressure unit, and the flexible blockage part (14) away from the liquid
(13) side is connected with the pressure transmission portion.
11. monitoring devices according to claim 9, it is characterised in that the monitoring portion includes：
The first cantilever beam (15) below the pressure transmission portion, first cantilever beam (15) is arranged on first housing
(12) on, the pressure transmission portion presses to first cantilever beam (15)；
First stress grating (16), is arranged on the upper surface of first cantilever beam (15)；
Second stress grating (17), is arranged on the lower surface of first cantilever beam (15).
12. monitoring devices according to claim 1, it is characterised in that institute's displacement sensors (20) includes：
Fixed pedestal (21)；
Second housing (22), second housing (22) is arranged on the fixed pedestal (21), and second housing (22)
Two ends offer the first via and the second via respectively；
Connecting rod (23), the first end of the connecting rod (23) and connection pedestal (30) connection, the connecting rod (23)
First via of second end through second housing (22)；
Spring (24), the first end of the spring (24) is connected with the second end of the connecting rod (23)；
Second cantilever beam (25), the first end of second cantilever beam (25) is fixed on the inwall of second housing (22),
Second end of second cantilever beam (25) is connected with the second end of the spring (24), and second cantilever beam (25) is described
Bent under the pulling force effect of spring (24)；
Tertiary stress grating (26), is arranged on second cantilever beam (25), to monitor the shape of second cantilever beam (25)
Become；
Optical fiber (27), the first end of the optical fiber (27) through second housing (22) second via and with described the
Three stress gratings (26) are connected, and the second end of the optical fiber (27) is connected with fiber Bragg grating (FBG) demodulator.
13. monitoring devices according to claim 12, it is characterised in that be provided with the fixed pedestal (21) for inciting somebody to action
The fixed pedestal (21) is fixed to the second fixture (211) on second object.
A kind of 14. construction monitoring components, it is characterised in that including：
At least one crossbeam (1), the crossbeam (1) is erected at the upper edge of foundation ditch；
An at least pile (2), the bottom of the stake (2) is supported on the bottom of the foundation ditch, the top of the stake (2) and the horizontal stroke
Beam (1) is connected；
Monitoring device, the monitoring device is any one of claim 1 to 13 monitoring device, the monitoring device
Obliquity sensor (10) is arranged in the stake (2), and the displacement transducer (20) of the monitoring device is arranged on the crossbeam (1)
On, to monitor the gap situation of change between the crossbeam (1) and the stake (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144315.7A CN106906854A (en) | 2017-03-10 | 2017-03-10 | Monitoring device and construction monitoring component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710144315.7A CN106906854A (en) | 2017-03-10 | 2017-03-10 | Monitoring device and construction monitoring component |
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| CN106906854A true CN106906854A (en) | 2017-06-30 |
Family
ID=59186947
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| CN201710144315.7A Pending CN106906854A (en) | 2017-03-10 | 2017-03-10 | Monitoring device and construction monitoring component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780708A (en) * | 2020-06-06 | 2020-10-16 | 河南交院工程技术有限公司 | Strain gauge |
| CN111780707A (en) * | 2020-06-06 | 2020-10-16 | 河南交院工程技术有限公司 | Strain measuring device |
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| CN111780708A (en) * | 2020-06-06 | 2020-10-16 | 河南交院工程技术有限公司 | Strain gauge |
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| CN111780708B (en) * | 2020-06-06 | 2021-12-14 | 河南交院工程技术集团有限公司 | Strain gauge |
| CN111780707B (en) * | 2020-06-06 | 2021-12-14 | 河南交院工程技术集团有限公司 | Strain measuring device |
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