CN207946204U - Highway bridge bearing capacity detection device - Google Patents
Highway bridge bearing capacity detection device Download PDFInfo
- Publication number
- CN207946204U CN207946204U CN201820312443.8U CN201820312443U CN207946204U CN 207946204 U CN207946204 U CN 207946204U CN 201820312443 U CN201820312443 U CN 201820312443U CN 207946204 U CN207946204 U CN 207946204U
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- Prior art keywords
- highway bridge
- rotating mechanism
- laser
- tablet
- processing computer
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000005303 weighing Methods 0.000 claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 25
- 238000005259 measurement Methods 0.000 claims description 21
- 230000003028 elevating effect Effects 0.000 claims description 9
- 210000003205 muscle Anatomy 0.000 claims description 5
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000006698 induction Effects 0.000 claims 1
- 238000007405 data analysis Methods 0.000 abstract description 2
- 238000013480 data collection Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model is related to highway bridge detection fields, more particularly to a kind of highway bridge bearing capacity detection device, including weighbridge of weighing, handle computer, display, measure transmitter unit, measure receiving unit, weigh weighbridge and display is connected with processing computer respectively, measure transmitter unit, including mounting bracket and laser range finder, laser range finder is connected by rotating mechanism with mounting bracket, the adjustable angle in perpendicular, rotating mechanism is internally provided with angle detector, it includes mounting bracket and laser pick-off tablet to measure receiving unit, laser pick-off tablet is vertically arranged in mounting bracket, center target is provided on laser pick-off tablet, laser range finder, laser pick-off tablet and angle detector are connected with processing computer respectively.The utility model is applied widely, convenient to use, can carry out comprehensive data collection and analysis to deformation of bridge floor in the case of different load-carryings.
Description
Technical field
The utility model is related to highway bridge detection fields, and in particular to a kind of highway bridge bearing capacity detection device.
Background technology
In the construction of the communal facilitys such as highway, bridge, highway, bridge bearing capacity for the safety of driving play to
The case where pass important role, the usage time of highway, bridge etc. is longer, and highway, bridge bend, crack, is more, because
This, the bending variable after highway, bridge global formation, and with the extension of usage time, the bridge curvature in each stage
At the measurement standard of concentrated expression load carrying capacity of bridge.
Currently, the artificial of pure visually goes to detect, not only error is big but also is difficult detection with existing instrument at night
Go out true curvature, how can just create it is a kind of the bending degree of highway bridge can be measured at night,
But also it is avoided that the error of human factor wherein influences, the greatest problem encountered at highway bridge Bearing Capacity Evaluation.
Chinese patent CN204649399U discloses a kind of highway bridge bearing capacity detection device, including pedestal, pedestal
Often end be respectively provided with there are one height adjusting screw rod；Base central is horizontally installed with level meter；The side of level meter is equipped with quarter
Spend table；The other side of level meter is provided with elevating lever；Elevating lever is vertically mounted on pedestal；The upper end of elevating lever is horizontally installed with
Measuring scale；Measuring scale is fixed on by positioning screw on stabilizing bracket；Measuring scale one end is equipped with laser measuring device for measuring；Laser measurement
Device is vertical with measuring scale to be fixed；Laser measuring device for measuring coordinates with laser reflection plate, and laser measuring device for measuring and laser reflection plate
With on a horizontal plane；Laser reflection plate middle position is equipped with laser reflective film；Laser reflection plate lower end is vertically fixed on
On another pedestal, the upper end of laser reflection plate is equipped with handle.
Above-mentioned utility model, along straightline propagation and the principle of energy line reflection, is sent out sharp using laser by laser emitter
Light, by the laser reflective film of distant place by laser reflection, in the case where highway bridge generates deformation, the laser being reflected back can be worn
Transparent panel is crossed on being shown in measurement plate, the bending degree of highway bridge is measured by the scale in measurement plate, the practicality
The scheme of novel offer does not adapt to the highway bridge of form of ownership, just cannot be detected, be applicable in having acclive arch bridge
Narrow range, while the parameter of curvature variation can only be provided, it has a single function, it can not be to bridge floor in the case of different load-carryings
Deformation carries out comprehensive data collection and analysis, and practical effect is bad.
Utility model content
In view of the drawbacks of the prior art and insufficient, the utility model discloses a kind of detections of highway bridge bearing capacity to fill
It sets.
The utility model solves technical solution used in its technical problem：Highway bridge bearing capacity detection device,
Including weighbridge of weighing, processing computer, display, transmitter unit is measured, measures receiving unit, the weighbridge and described aobvious of weighing
Show that device is connected with the processing computer respectively, the measurement transmitter unit and the measurement receiving unit include installation branch
Frame, the measurement transmitter unit are set to highway bridge bridgehead position, also packet laser range finder and rotating mechanism, the rotating mechanism
It is fixedly installed on the mounting bracket top, the laser range finder detachable connection is on the rotating mechanism and vertical
In the rotation axis of the rotating mechanism, the rotating mechanism is followed to rotate, the rotating mechanism is internally provided with angle detector,
The measurement receiving unit is set to highway bridge centre position, further includes laser pick-off tablet, the laser pick-off tablet
It is vertically arranged in the mounting bracket, center target, the laser range finder, institute is provided on the laser pick-off tablet
Laser pick-off tablet and the angle detector is stated respectively to be connected with the processing computer.
Load in order to drive into bridge floor is detected, preferably, the weighbridge of weighing includes bottom plate, under the bottom plate
There are four jack for four corners setting at end, and the bottom plate upper end is provided with fixed seat and first level instrument, the fixation
Weight tester is installed in seat, the weight tester upper end is connected with microscope carrier, the microscope carrier is parallel with the bottom plate, institute
It states bottom plate and is provided at both ends with slope, concrete inner core is provided in the bottom plate, the concrete inner core is internally provided with enhancing
Muscle, the weight tester and the first level instrument are connected with the processing computer.
In order to enable mounting bracket can be adjusted to horizontal position and height is adjustable, preferably, the mounting bracket packet
Pedestal is included, four feet of the pedestal are equipped with height adjustment device, and the upper vertical of the pedestal is provided with elevating lever, the lifting
The top of bar is fixedly connected with the rotating mechanism.
In order to which adjustment base keeps its holding horizontal, preferably, the height adjustment device includes knob, screw rod and foot
The upper end of pad, the screw rod is provided with knob, and lower end passes through the threaded hole being arranged in the pedestal quadrangle to be fixed with the foot pad
Connection.
In order to adjust the launch angle of laser emitter, while the changing value of launch angle is detected, preferably, institute
It includes servo motor, fixing sleeve and geometrical clamp to state rotating mechanism, and the geometrical clamp includes hollow cylinder connecting rod, the connection
One end of bar is equipped with clip, and the laser range finder is fixed in the clip, and the hollow position of the connecting rod is equipped with side
Shape, hexagon or other non-circular shaft mounting holes, the shaft mounting hole are connected with the output end of the servo motor
Connect, the connecting rod is inserted into fixing sleeve, the axis of the connecting rod, the axis of the fixing sleeve and the servo motor it is defeated
The axis of shaft overlaps, and bearing is equipped between the connecting rod and the fixing sleeve, and the angle detector is arranged described solid
In fixed set, the servo motor is connected with the processing computer.
In order to accurately incude the irradiation position of laser, preferably, the laser pick-off tablet passes through installation card
Seat is arranged in another mounting bracket upper end, and the laser pick-off tablet is connected with the processing computer.
In order to accurately detect whether pedestal is horizontal, preferably, it is provided with the second level meter on the pedestal,
Second level meter is connected with the processing computer.
Compared with prior art, the utility model has the beneficial effects that：
(1) the utility model is provided with weighbridge of weighing and can be measured to load, can accurately detect the change of load
Change the influence to bridge floor, while being equipped with angular transducer in the rotating mechanism of laser emission element, is detected by laser induced plate
It to the irradiation position of laser, and is adjusted using rotating mechanism and to make laser remain to be radiated at target center position, to accurate
Quickly detect because load change due to caused by bridge floor deformation, using flexible, at the same by handle computer also can profit
The angle value that the distance value and angle detector measured with existing laser range finder are measured calculates specific sedimentation value,
It is convenient to use, accurately, it is convenient for analysis and arrangement.
(2) the second level meter, second level meter and the place are provided in the mounting bracket of the utility model setting
Reason computer is connected, and the processing computer is connected with display, and the data shown by display can detect in real time
Whether pedestal is horizontal, and is adjusted using height adjustment device, ensure that the accuracy of measurement.
(3) the utility model is provided with display and processing computer, can voluntarily handle data, and by aobvious
Show that device is shown, improves the promptness and accuracy of detection, reduce the risk of human error.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described.
Fig. 1 is the structural schematic diagram for the highway bridge bearing capacity detection device that the utility model embodiment provides；
Fig. 2 is the structure chart for the weighbridge of weighing that the utility model embodiment provides；
Fig. 3 is the structure chart for the measurement transmitter unit that the utility model embodiment provides；
Fig. 4 is the structure chart for the rotating mechanism that the utility model embodiment provides；
Fig. 5 is the structure chart for the measurement receiving unit that the utility model embodiment provides；
1. weigh weighbridge in figure；2. handling computer；3. display；4. measuring transmitter unit；5. mounting bracket；6. laser
Rangefinder；7. rotating mechanism；8. angle detector；9. measuring receiving unit；10. laser pick-off tablet；11. center target；
12. installed cassette；13. the second level meter；1-1. bottom plate；1-2. jack；1-3. fixed seat；1-4. first level instrument；1-5.
Weight tester；1-6. microscope carrier；1-7. slope；1-8. concrete inner core；1-9. enhances muscle；5-1 pedestals；5-2. height adjusts dress
It sets；5-3. elevating lever；5-21. knob；5-22. screw rod；5-23. foot pad；7-1. servo motor；7-2. fixing sleeve；7-3. fixed
Folder；7-4. bearing；7-31. connecting rod；7-32. clip；7-33. shaft mounting hole.
Specific implementation mode
The utility model is described further below in conjunction with attached drawing.
As shown in Figures 1 to 4, highway bridge bearing capacity detection device highway bridge bearing capacity provided in this embodiment
Detection device, including weighbridge 1 of weighing, processing computer 2, display 3, measurement transmitter unit 4, measure receiving unit 9, the title
Important place pound 1 and the display 3 are connected with the processing computer 2 respectively, and the measurement transmitter unit 4 and the measurement connect
It includes mounting bracket 5 to receive unit 9, and the measurement transmitter unit 4 is set to highway bridge bridgehead position, also packet laser range finder 6
With rotating mechanism 7, the rotating mechanism 7 is fixedly installed on 5 top of the mounting bracket, and the laser range finder 6 is detachable
It is connected on the rotating mechanism 7 and perpendicular to the rotation axis of the rotating mechanism 7, the rotating mechanism 7 is followed to rotate,
The rotating mechanism 7 is internally provided with angle detector 8, and the measurement receiving unit 9 is set to highway bridge centre position, further includes
Laser pick-off tablet 10, the laser pick-off tablet 10 are vertically arranged in the mounting bracket 5, the laser pick-off sense
It answers and is provided with center target 11 on plate 10, the laser range finder 6, the laser pick-off tablet 10 and the angle detector
8 are connected with the processing computer 2 respectively.
As shown in Fig. 2, in the present embodiment, the load in order to drive into bridge floor is detected, the weighbridge 1 of weighing includes,
Four corners setting of the lower ends bottom plate 1-1, the bottom plate 1-1 is provided with there are four the upper ends jack 1-2, the bottom plate 1-1
Weight tester 1-5, the weight tester 1-5 are installed in fixed seat 1-3 and first level instrument 1-4, the fixed seat 1-3
Upper end is connected with microscope carrier 1-6, and the microscope carrier 1-6 is parallel with the bottom plate 1-1, and the bottom plate 1-1 is provided at both ends with slope 1-7,
It is provided with concrete inner core 1-8 in the bottom plate 1-1, the concrete inner core 1-8 is internally provided with enhancing muscle 1-9, described heavy
The amount detector 1-5 and first level instrument 1-4 is connected with the processing computer 2.
In use, using first level instrument 1-4 come detection level direction whether leveling, then the lifting by jack 1-2
Carrying out the balance of regulating base board 1-1, the weight sensor 1-5 in fixed seat 1-3 is able to detect that the pressure from microscope carrier 1-6, from
And detecting weight, the setting of bottom plate 1-1 sloped sides 1-7 drives into microscope carrier 1-6 conducive to vehicle and weighs, and is set in bottom plate 1-1
It is equipped with the setting of enhancing muscle 1-9 in the concrete inner core 1-8 set, enhances the stability and intensity of bottom plate 1-1.
As shown in figure 3, in the present embodiment, in order to enable mounting bracket can be adjusted to horizontal position and height is adjustable,
The mounting bracket 5 includes that four feet of pedestal 5-1, the pedestal 5-1 are equipped with height adjustment device 5-2, and the pedestal 5-1's is upper
Portion is vertically installed with elevating lever 5-3, and the top of the elevating lever 5-3 is fixedly connected with the rotating mechanism 7.
As shown in Figure 3 and Figure 5, in the present embodiment, in order to which adjustment base keeps its holding horizontal, the height adjustment device
5-2 includes knob 5-21, screw rod 5-22 and foot pad 5-23, and the upper end of the screw rod 5-22 is provided with knob 5-21, and lower end passes through
The threaded hole being arranged in tetra- jiaos of the pedestal 5-1 is fixedly connected with the foot pad 5-23.
In use, by turning knob 5-21, the screw-thread fit between screw rod 5-22 and threaded hole is utilized so that screw rod 5-
22 up and down adjustments are arranged the foot pad 5-23 in screw rod bottom, increase the frictional force contacted with ground, improve stability, together
When with certain shock resistance.
As shown in figure 4, in the present embodiment, in order to adjust the launch angle of laser emitter, while detecting transmitting
The changing value of angle, the rotating mechanism 7 include servo motor 7-1, fixing sleeve 7-2 and geometrical clamp 7-3, the geometrical clamp 7-3
One end including hollow cylinder connecting rod 7-31, the connecting rod 7-31 is equipped with clip 7-32, and the laser range finder 6 is fixed
In the clip 7-32, the hollow position of the connecting rod 7-31 is equipped with rectangular, hexagon or non-circular turn other
Shaft mounting hole 7-33, the shaft mounting hole 7-33 are connected with the output end of the servo motor 7-1, the connecting rod 7-31
Be inserted into fixing sleeve 7-2, the axis of the connecting rod 7-31, the axis of the fixing sleeve 7-2 and the servo motor 7-1 it is defeated
The axis of shaft overlaps, and bearing 7-4 is equipped between the connecting rod 7-31 and the fixing sleeve 7-2, and the angle detector 8 is set
It sets in the fixing sleeve 7-2, the servo motor 7-1 is connected with the processing computer 2.
As shown in figure 5, in the present embodiment, in order to accurately incude the irradiation position of laser, the laser pick-off sense
Answer plate 10 by the setting of installed cassette 12 in 5 upper end of the mounting bracket, the laser pick-off tablet 10 is counted with the processing
Calculation machine 2 is connected.
Such as Fig. 3 and as shown in figure 5, in the present embodiment, in order to accurately detect whether pedestal is horizontal, the bottom
It is provided with the second level meter 13 on seat 5-1, second level meter 13 is connected with the processing computer 2.
In use, second level meter 13 is connected with the processing computer 2, the processing computer 2 and display
Device 3 is connected, and whether the data shown by display 3 can detect pedestal 5-1 in real time horizontal, and utilizes height adjustment device
5-2 is adjusted, and ensure that the accuracy of measurement.
Before starting, detection device is configured, weighbridge 1 of weighing is placed on to the both sides of bridge, to driving into bridge
Load weigh, by laser emission element 4 be arranged in bridgehead position, laser pick-off unit 9 is arranged at bridge center
Position, using height adjustment device 5-2, adjustment base 5-1 makes it keep horizontality under the auxiliary of the second level meter 13, if
During setting, adjusts distance of the laser range finder 6 away from ground and be consistent at a distance from 11 target center of center target and ground, opened
Laser range finder 6 makes laser beam be radiated on laser pick-off tablet 10, and is radiated at target center position.
After being provided with, start detection operation, weight that bridge each loads is driven into simultaneously by weight tester 1-5 detection
Processing computer 2 is transferred data to, when bridge floor is deformed, laser pick-off tablet 10 detects laser irradiating position
Variation, and processing computer 2 is transmitted information to, 2 control servomotor 7-1 of processing computer adjusts 6 laser of laser range finder
Irradiating angle makes it irradiate target center position, and 8 detection angles of angle detector change at this time, and transfers data to processing and calculate
Machine 2, while range data is also transmitted to processing computer 2 by laser range finder 6, processing computer 2 carries out processing meter to data
It calculates, and the Curvature change information of the bridge of respective load, sedimentation value, load value is shown on the display 3, convenient for prison in real time
It surveys.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change that this extends out
The dynamic protection domain created still in the utility model.
Claims (7)
1. highway bridge bearing capacity detection device, which is characterized in that including weighbridge of weighing (1), processing computer (2), display
Device (3) measures transmitter unit (4), measures receiving unit (9), the weighbridge of weighing (1) and the display (3) respectively with institute
It states processing computer (2) to be connected, the measurement transmitter unit (4) and the measurement receiving unit (9) include mounting bracket
(5), the measurement transmitter unit (4) is set to highway bridge bridgehead position, also packet laser range finder (6) and rotating mechanism (7), institute
It states rotating mechanism (7) and is fixedly installed on the mounting bracket (5) top, laser range finder (6) detachable connection is in institute
It states on rotating mechanism (7) and perpendicular to the rotation axis of the rotating mechanism (7), follows the rotating mechanism (7) to rotate, institute
It states rotating mechanism (7) and is internally provided with angle detector (8), the measurement receiving unit (9) is set to highway bridge centre position, also
Including laser pick-off tablet (10), the laser pick-off tablet (10) is vertically arranged in the mounting bracket (5), described
Center target (11), the laser range finder (6), the laser pick-off tablet are provided on laser pick-off tablet (10)
(10) it is connected respectively with the processing computer (2) with the angle detector (8).
2. highway bridge bearing capacity detection device according to claim 1, which is characterized in that the weighbridge of weighing (1)
Including bottom plate (1-1), there are four jack (1-2), the bottom plate (1- for four corners setting of bottom plate (1-1) lower end
1) upper end is provided with fixed seat (1-3) and first level instrument (1-4), and weight tester (1- is equipped in the fixed seat (1-3)
5), weight tester (1-5) upper end is connected with microscope carrier (1-6), and the microscope carrier (1-6) is parallel with the bottom plate (1-1), institute
It states bottom plate (1-1) and is provided at both ends with slope (1-7), concrete inner core (1-8), the coagulation are provided in the bottom plate (1-1)
Native inner core (1-8) is internally provided with enhancing muscle (1-9), the weight tester (1-5) and the first level instrument (1-4) and institute
Processing computer (2) is stated to be connected.
3. highway bridge bearing capacity detection device according to claim 1, which is characterized in that the mounting bracket (5)
Including pedestal (5-1), four feet of the pedestal (5-1) are equipped with height adjustment device (5-2), and the top of the pedestal (5-1) is hung down
It directly is provided with elevating lever (5-3), the top of the elevating lever (5-3) is fixedly connected with the rotating mechanism (7).
4. highway bridge bearing capacity detection device according to claim 3, which is characterized in that the height adjustment device
(5-2) includes knob (5-21), screw rod (5-22) and foot pad (5-23), and the upper end of the screw rod (5-22) is provided with knob (5-
21), lower end passes through the threaded hole being arranged in the quadrangle the pedestal (5-1) to be fixedly connected with the foot pad (5-23).
5. highway bridge bearing capacity detection device according to claim 3, which is characterized in that the rotating mechanism (7)
Including servo motor (7-1), fixing sleeve (7-2) and geometrical clamp (7-3), the geometrical clamp (7-3) includes that hollow cylinder connects
One end of bar (7-31), the connecting rod (7-31) is equipped with clip (7-32), and the laser range finder (6) is fixed on the clip
In (7-32), the hollow position of the connecting rod (7-31) is equipped with shaft mounting hole (7-33), the shaft mounting hole (7-
33) it is connected with the output end of the servo motor (7-1), the connecting rod (7-31) is inserted into fixing sleeve (7-2), the company
The axis of the output shaft of the axis of extension bar (7-31), the axis of the fixing sleeve (7-2) and the servo motor (7-1) overlaps,
Bearing (7-4) is equipped between the connecting rod (7-31) and the fixing sleeve (7-2), the angle detector (8) is arranged in institute
It states in fixing sleeve (7-2), the servo motor (7-1) is connected with the processing computer (2).
6. highway bridge bearing capacity detection device according to claim 5, which is characterized in that the laser pick-off induction
Plate (10) is arranged by installed cassette (12) in another mounting bracket (5) upper end, the laser pick-off tablet (10) with
The processing computer (2) is connected.
7. highway bridge bearing capacity detection device according to claim 6, which is characterized in that on the pedestal (5-1)
It is provided with the second level meter (13), second level meter (13) is connected with the processing computer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312443.8U CN207946204U (en) | 2018-03-07 | 2018-03-07 | Highway bridge bearing capacity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312443.8U CN207946204U (en) | 2018-03-07 | 2018-03-07 | Highway bridge bearing capacity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207946204U true CN207946204U (en) | 2018-10-09 |
Family
ID=63697674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820312443.8U Expired - Fee Related CN207946204U (en) | 2018-03-07 | 2018-03-07 | Highway bridge bearing capacity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207946204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729728A (en) * | 2020-12-17 | 2021-04-30 | 马征 | Traffic construction is with highway bridge bearing capacity detection device |
| CN113251940A (en) * | 2021-06-15 | 2021-08-13 | 湖南东润智能仪表有限公司 | Bridge structure deflection measuring device |
-
2018
- 2018-03-07 CN CN201820312443.8U patent/CN207946204U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729728A (en) * | 2020-12-17 | 2021-04-30 | 马征 | Traffic construction is with highway bridge bearing capacity detection device |
| CN112729728B (en) * | 2020-12-17 | 2021-08-17 | 马征 | Traffic construction is with highway bridge bearing capacity detection device |
| CN113251940A (en) * | 2021-06-15 | 2021-08-13 | 湖南东润智能仪表有限公司 | Bridge structure deflection measuring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 |