CN208420326U - A kind of deflection of bridge span laser detector - Google Patents
A kind of deflection of bridge span laser detector Download PDFInfo
- Publication number
- CN208420326U CN208420326U CN201820926711.5U CN201820926711U CN208420326U CN 208420326 U CN208420326 U CN 208420326U CN 201820926711 U CN201820926711 U CN 201820926711U CN 208420326 U CN208420326 U CN 208420326U
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- laser
- deflection
- target board
- bridge span
- bridge
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Abstract
The utility model discloses a kind of deflection of bridge span laser detectors, it is related to detection device field, more precisely it is related to the detection device field of deflection of bridge span, including laser emitting portion, laser reception division and record part, laser emitting portion is pointed into laser reception division, record is partially toward laser reception division, laser reception division includes Target Board and angle controller, angle controller includes positive and negative rotation driving motor, the interconnecting piece of connection bridge is provided at the top of positive and negative rotation driving motor, positive and negative rotation driving motor is connected to sprocket wheel, sprocket engagement is connected with carrying chain, carrying chain both ends are provided with suspension hook.The utility model pulls Target Board by angle controller, Target Board is fixed on deflection of bridge span tested point with angle, record part can be with position of the perpendicular recording laser on Target Board, the accurate displacement of the lines for measuring bridge.In addition present apparatus each section is easy to disassemble, is suitble to field to measure use for a long time, there is no the frangible situations of rapid wear.
Description
Technical field
The utility model relates to arrive detection device field, the detection device of deflection of bridge span more precisely it has been related to
Field.
Background technique
Amount of deflection is when stress or non-uniform temperature change, and center line of the bar is in the displacement of the lines or plate shell perpendicular to axis direction
Middle face is in the displacement of the lines perpendicular to middle face direction.The amount of deflection of bridge is the most important index of long-span bridges lifetime, periodically
Observation amount of deflection is to ensure the most effective precautionary measures of bridge structure safe.In the dynamic test of present bridge, the measurement one of amount of deflection
As by measuring riding upon the displacement meter for setting up bracket, but most of bridge is limited to the depth of water, span, the items such as navigation
Part can not set up bracket.This bridge is generally measured with acceleration transducer indirectly, but measuring result error is larger.
In addition existing equipment building block is excessively accurate, long-term field measurement can not be adapted to, especially after damage parts, in field
It is difficult to repair.
Utility model content
To solve the above-mentioned problems, the purpose of this utility model is to provide a kind of deflection of bridge span laser detector, solutions
It is more troublesome and existing equipment can not adapt to for a long time field measurement and ask that deflection test is carried out to bridge under specific condition of having determined
Topic.
The technical scheme adopted by the utility model is a kind of deflection of bridge span laser detector, including laser emission section
Point, laser reception division and record part, the laser emitting portion includes laser, and the laser of laser is pointed into laser pick-off
Part, the record are partially toward laser reception division, and the laser reception division includes Target Board and angle controller, institute
Stating angle controller includes positive and negative rotation driving motor, the interconnecting piece of connection bridge is provided at the top of positive and negative rotation driving motor, just
Reverse rotation driving motor is connected to sprocket wheel, and the sprocket engagement is connected with carrying chain, and carrying chain both ends, which are provided with, hooks institute
State the suspension hook of Target Board.
Further, wireless signal receiver, and the angle controller are additionally provided on the positive and negative rotation driving motor
Further include and the matched Digiplex of wireless signal receiver.
Further, angular transducer, the angular transducer and the Digiplex are provided on the Target Board
Signal is connected, and will test as the result is shown on the display screen of Digiplex.
Further, the Digiplex is provided with " into " " moving back " two grades of keys.
Further, record part further includes high speed focal length camera and pedestal, the high speed focal length camera with
Pedestal is hinged, high speed focal length camera face Target Board direction.
Further, the Target Board is provided with scale towards laser on one side, and the precision of the scale is 0.001, meter
Amount unit is rice, the setting annulus opposite there are two position on shown Target Board edge.
Further, the interconnecting piece is to link up with or be detachably connected plate.
The beneficial effects of the utility model are: turn of the utility model by the positive and negative rotation driving motor of angle controller
It is dynamic that carrying chain is driven to pull Target Board, Target Board is fixed on deflection of bridge span tested point according to certain angle, so that record
Part can accurately measure the displacement of the lines of bridge with position of the perpendicular recording laser on Target Board.In addition the utility model
Each section is easy to disassemble, is suitble to field to measure use for a long time, there is no the frangible situations of rapid wear.
Detailed description of the invention
The present invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1 is the utility model structure diagram；
Fig. 2 is angle controller left view；
Fig. 3 is angle controller main view；
Fig. 4 is the angle controller main view under working condition.
Specific embodiment
Deflection of bridge span laser detector as shown in Figures 1 to 4, including laser emitting portion 1, laser reception division 2
With record part 3, wherein laser reception division 2 includes Target Board 22 and angle controller 25, and angle controller 25 is main
Including positive and negative rotation driving motor 251 and carrying chain 253, forward and backward driving motor 251 is connected with sprocket wheel, which connects
It is connected to carrying chain 253, the both ends of the carrying chain 253 are both provided with the suspension hook 254 that can hook Target Board 22, positive and negative rotation
The top of driving motor 251 is additionally provided with the interconnecting piece 23 of connection bridge tested point, which can be hook 23.1,
Can be can be with the dismountable connecting plate of bridge.Select hook 23.1 as interconnecting piece 23 in the present embodiment.
Wireless signal receiver 257 is additionally provided on positive and negative rotation driving motor 251, which connects
Matching Digiplex 255 is connect, Digiplex 255 is provided with " into ", " moving back " two gears.
Target Board 22 is that one side has scale, and another side is equipped with the plate body of angular transducer 24, and the precision of the scale is
0.001, measurement unit is rice, and the annulus opposite there are two position is also set up at the edge of Target Board 22, and the effect of the annulus is
During 254 hook lock Target Board 22 of suspension hook, prevent Target Board 22 from falling off because of sliding.Angular transducer 24 also with it is above-mentioned
The connection of 255 signal of Digiplex, and the angle of Target Board 22 can be shown in real time in the display screen of Digiplex 255.
Deflection of bridge span laser detector further includes laser emitting portion 1 and record part 3, and laser emitting portion 1 includes
Laser 11, laser 11 adjust the angle of laser and Target Board 22 by laser stent.Laser emitting portion 1 be placed in
Survey the lower section of bridge.Recording part 3 includes high speed focal length camera 31 and pedestal 32, and high speed focal length camera 31 and pedestal 32 are cut with scissors
It connects, the camera lens of high speed focal length camera 31 is towards 22 direction of Target Board, in order to guarantee that high speed focal length camera 31 can take
Accurate location of the laser on Target Board 22, it should be ensured that the shooting visual angle vertical target plate 22 of high speed focal length camera 31.
During use, laser reception division 2 is preferentially installed, the carrying of 251 two sides of positive and negative rotation driving motor is adjusted
Chain 253 is isometric, and by the suspension hook 254 of carrying 253 end of chain by the annulus hook lock of Target Board 22, Target Board 22 is had at this time
Downwards, one with angular transducer 24 faces upward the one of scale.Crane (being not drawn into figure) is by 2 liters of laser reception division
Height, and connect by hook 23.1 with deflection of bridge span tested point.After laser reception division 2 is stable in the sky, pass through wireless remote
It controls device 255 and controls the movement that positive and negative rotation driving motor 251 realizes carrying chain 253,251 two sides of positive and negative rotation driving motor carry chain
Item 253 due to length difference, can make Target Board 22 and it is horizontal or vertical between generate an angle.On Target Board 22
Angular transducer 24 is showed angle on a display screen by Digiplex 255 in real time.
After installing laser reception division 2, starting installation record part 3, high speed focal length camera 31 and pedestal 32 are hinged,
And has the function of angle locking, which belongs to well-known technique, such as the telescope holder of lockable angle etc..In addition high speed
Refer to frame per second in the camera of the 1000 frames/more than second, focal length refers to 300 millimeters of focal length or more of camera lens, passes through angular transducer
The goniometer of 24 measurements calculates the angle between high speed focal length camera 31 and pedestal 32, so that the bat of high speed focal length camera 31
Take the photograph viewing angles-both vertical and Target Board 22.
After installing record part 3, laser emitting portion 1 is installed, the laser 11 of laser emitting portion 1 selects laser
Laser 11 of the beam diameter between 0.5-1 millimeters.Laser 11 keeps the position of laser emitting portion 1 after installation determines
It is inconvenient with the angle of laser 11, by the laser irradiation of laser 11 on Target Board 22, at the same time, opens high speed focal length and shine
Camera 31, position of the recording laser point on Target Board 22.Apply external force on bridge, making bridge, deformation occurs, in deformation
High speed focal length camera 31 is ceaselessly recorded, and when finding bridge deformation, the maximum point of laser point moving distance measures two
The distance between point, obtains the displacement of the lines of bridge.
It is taken multiple measurements by the angle for repeatedly adjusting Target Board 22 and the position for recording part 3, reduces bridge line position
Shift error is obtaining average line shift value.
Production process in, worker using positive and negative rotation driving motor 251 and carrying chain 253 all be using its rise band
The characteristic of animal body, but the few expect to make using the 253 length difference of carrying chain at 251 both ends of positive and negative rotation driving motor
Dragged object generates the characteristics of inclined angle, and this feature is worth utilizing.In deflection of bridge span test, generally all
To be carried out in field, this just has some requirements to instrument, first instrument must it is solid it is resistance to fall, prevent from causing during measurement
Instrument damage；Secondly, apparatus structure requires to simplify, avoid inconvenient to carry；Again, the component of instrument will be common part, instrument
It can be repaired in time when field is damaged.Deflection of bridge span laser detector disclosed by the utility model complies fully with above three
Point, and the displacement of bridge line can be accurately measured, it is the very strong detection device of practicability.
The above is the utility model preferred embodiment, is not constituted to scope of protection of the utility model
Limitation.
Claims (7)
1. a kind of deflection of bridge span laser detector, including laser emitting portion (1), laser reception division (2) and record part
(3), it is characterised in that: the laser emitting portion (1) includes laser (11), and the laser of laser (11) is pointed into laser pick-off
Partially (2), for the record part (3) towards laser reception division (2), the laser reception division (2) includes Target Board (22)
With angle controller (25), the angle controller (25) includes positive and negative rotation driving motor (251), positive and negative rotation driving motor
(251) top is provided with the interconnecting piece (23) of connection bridge, and positive and negative rotation driving motor (251) is connected to sprocket wheel, and the sprocket wheel is nibbled
Conjunction is connected with carrying chain (253), and carrying chain (253) both ends are provided with the suspension hook (254) for hooking the Target Board (22).
2. deflection of bridge span laser detector according to claim 1, it is characterised in that: the positive and negative rotation driving motor
(251) it is additionally provided on wireless signal receiver (257), and the angle controller (25) further includes and wireless signal receiver
(257) matched Digiplex (255).
3. deflection of bridge span laser detector according to claim 2, it is characterised in that: be arranged on the Target Board (22)
Angled sensor (24), the angular transducer (24) is connected with the Digiplex (255) signal, and will test result
It is shown on the display screen of Digiplex (255).
4. deflection of bridge span laser detector according to claim 2 or 3, it is characterised in that: the Digiplex
(255) " into " " moving back " two grades of keys are provided with.
5. deflection of bridge span laser detector according to claim 1, it is characterised in that: the record part (3) is also wrapped
Include high speed focal length camera (31) and pedestal (32), the high speed focal length camera (31) and pedestal (32) hingedly, high speed focal length
Camera (31) face Target Board (22) direction.
6. deflection of bridge span laser detector according to claim 5, it is characterised in that: Target Board (22) direction swashs
Light device (11) is provided with scale on one side, and the precision of the scale is 0.001, and measurement unit is rice, shown Target Board (22) edge
The upper setting annulus opposite there are two position.
7. deflection of bridge span laser detector according to claim 1, it is characterised in that: the interconnecting piece (23) is hook
(23.1) or it is detachably connected plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926711.5U CN208420326U (en) | 2018-06-14 | 2018-06-14 | A kind of deflection of bridge span laser detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926711.5U CN208420326U (en) | 2018-06-14 | 2018-06-14 | A kind of deflection of bridge span laser detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208420326U true CN208420326U (en) | 2019-01-22 |
Family
ID=65108424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820926711.5U Active CN208420326U (en) | 2018-06-14 | 2018-06-14 | A kind of deflection of bridge span laser detector |
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| CN (1) | CN208420326U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487197A (en) * | 2019-09-03 | 2019-11-22 | 厦门大学嘉庚学院 | A kind of bridge dynamic degree of disturbing real-time monitoring system applied based on ccd image sensor and laser |
| CN112014043A (en) * | 2020-08-19 | 2020-12-01 | 江苏方天电力技术有限公司 | Digital large plate girder deflection measuring device and method |
| CN113176054A (en) * | 2021-04-19 | 2021-07-27 | 广西交科集团有限公司 | Bridge steel pipe arch rib deformation displacement monitoring system |
| CN113176054B (en) * | 2021-04-19 | 2024-04-26 | 广西交科集团有限公司 | Bridge steel pipe arch rib deformation displacement monitoring system |
-
2018
- 2018-06-14 CN CN201820926711.5U patent/CN208420326U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487197A (en) * | 2019-09-03 | 2019-11-22 | 厦门大学嘉庚学院 | A kind of bridge dynamic degree of disturbing real-time monitoring system applied based on ccd image sensor and laser |
| CN112014043A (en) * | 2020-08-19 | 2020-12-01 | 江苏方天电力技术有限公司 | Digital large plate girder deflection measuring device and method |
| CN113176054A (en) * | 2021-04-19 | 2021-07-27 | 广西交科集团有限公司 | Bridge steel pipe arch rib deformation displacement monitoring system |
| CN113176054B (en) * | 2021-04-19 | 2024-04-26 | 广西交科集团有限公司 | Bridge steel pipe arch rib deformation displacement monitoring system |
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