CN205620361U - Strike damage of scanning formula bridge and detect car - Google Patents
Strike damage of scanning formula bridge and detect car Download PDFInfo
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- CN205620361U CN205620361U CN201620448259.7U CN201620448259U CN205620361U CN 205620361 U CN205620361 U CN 205620361U CN 201620448259 U CN201620448259 U CN 201620448259U CN 205620361 U CN205620361 U CN 205620361U
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- percussion
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Abstract
The utility model provides a strike damage of scanning formula bridge and detect car can realize carrying test car's purpose conveniently. This strike damage of scanning formula bridge and detect car includes: be used for delivery test car's trailer, be provided with elevating system on the trailer, elevating system is used for: in delivery before the test car, control test car rises to the assigned position to make at the delivery in -process test car and delivery road surface interval setting, before detecting the bridge, control test car falls down to make when detecting the bridge test car can move on the bridge that awaits measuring, still be provided with draw gear on the trailer, draw gear is connected with outside tractor to make when detecting the bridge, the trailer is in drag under of the pulling of outside tractor test car moves on the bridge that awaits measuring, when non - detection bridge, the trailer is in delivery under of the pulling of outside tractor test car.
Description
Technical field
This utility model relates to damage detection for bridges technical field, particularly relates to a kind of percussion scan-type bridge
Damage check car.
Background technology
Progress and the raising of trip demand, various highway and track traffic bridge along with science and technology
Quantity be skyrocketed through, these bridges use during, constantly by variations in temperature, high wind, rainfall
Etc. the erosion of external environment, simultaneously by car load, the prolonged and repeated effect of vehicular impact, and part
Bridge also can be damaged by the natural disaster such as flood, earthquake, and along with the increase of service life, bridge is universal
Fatigue effect in various degree and catabiosis occur, pontic have accumulated substantial amounts of environmental damage, causes a lot
Bridge becomes the unsafe bridge on definite meaning, and the substantial amounts of example that collapses all occurred in bridge both domestic and external, serious
Threaten life security and the property safety of people, so, effectively in real time bridge is carried out damage check
Particularly significant.
In recent years, for above-mentioned technical problem, develop a kind of scan-type damage detection for bridges that taps
Technical scheme, it is possible to high-precision complete bridge machinery, by applying to tap load to bridge, gathers simultaneously
The response signal of bridge, detects bridge damnification.But, existing damage detection for bridges device is inconvenient to carry,
Need special vehicle equipment when delivery, cause the serious waste of resource, therefore, the most rapidly and efficiently
Damage detection for bridges device is carried to the technical problem that bridge scene becomes urgently to be resolved hurrily by ground.
Utility model content
This utility model provides the percussion scan-type damage detection for bridges car of a kind of novel structure, it is possible to realize just
Deliver the purpose of test carriage promptly.
The percussion scan-type damage detection for bridges car that this utility model provides, applies to tap including to bridge to be measured
The test carriage of load and for collecting the response of the percussion load that bridge to be measured is delivered on described test carriage
The signal pickup assembly of signal, also includes:
For delivering the trailer of described test carriage；
Being provided with elevating mechanism on described trailer, described elevating mechanism is used for: before delivering described test carriage,
Control described test carriage to rise to specify position, so that on test carriage described in carry process and delivery road surface
Interval is arranged；Before detection bridge, control described test carriage and fall, so that the described survey when detecting bridge
Test run can be moved on bridge to be measured；
Being additionally provided with traction apparatus on described trailer, described traction apparatus is connected with outside tractor, so that
When detecting bridge, described trailer drags described test carriage at bridge to be measured under the traction of described outside tractor
Move on beam；When non-detection bridge, described trailer delivers described survey under the traction of described outside tractor
Test run.
Alternatively, described trailer includes a front vehicle wheel and two rear wheels, and described trailer is additionally provided with control
Making the rocking arm of described front vehicle wheel lifting, described rocking arm is used for: before delivering described test carriage, controls described
Front vehicle wheel falls；Before detection bridge, control described front vehicle wheel and rise.
Alternatively, described elevating mechanism includes position-limited rack and gag lever post, when non-detection bridge, described spacing
Frame coordinates the described test carriage of picking-up with described gag lever post.
Alternatively, described elevating mechanism also includes at least four lifting leads vertically arranged, often
Lift lead described in root to be connected with described position-limited rack, so that described position-limited rack driving at described elevating mechanism
Vertically rise or fall under Dong, and then make the described test carriage on described position-limited rack vertically
Rise or fall.
Alternatively, described trailer is additionally provided with drive link, described drive link be used for connecting described test carriage and
Described trailer, transmits described trailer when detecting bridge and is applied to the power that described test carriage moves forward.
Alternatively, described test carriage includes that horizontal plate, described horizontal plate are connected with described drive link.
Alternatively, described test carriage being provided with knocking device, described knocking device produces and taps load, logical
Cross described test carriage to will hit against load and be transferred to bridge to be measured.
Alternatively, described percussion scan-type damage detection for bridges car also includes: power amplifier, knocking
Described knocking device is passed to after described power amplifier amplifies.
Alternatively, described test carriage is additionally provided with reinforcing ring, described knocking device annular be fixed on described in add
On strong ring, described reinforcing ring transmits described knocking device and produces percussion load.
Alternatively, described test carriage being additionally provided with acceleration transducer, described acceleration transducer is used for picking up
Take the response signal of the percussion load that bridge to be measured is delivered on described test carriage；Described signal pickup assembly is even
It is connected to described acceleration transducer, collects the response signal that described acceleration transducer picks up.
In this utility model, tap scan-type damage detection for bridges car and include for delivering dragging of test carriage
Car, this trailer is provided with elevating mechanism, and elevating mechanism is for, before delivery test carriage, controlling test carriage
Rise to specify position, so that test carriage and interval, delivery road surface are arranged in carry process；At detection bridge
Liang Qian, controls test carriage and falls, so that test carriage can move on bridge to be measured when detecting bridge；
Further, this trailer being additionally provided with traction apparatus, traction apparatus is connected with outside tractor, so that in inspection
When surveying bridge, trailer drags test carriage under the traction of outside tractor and moves on bridge to be measured；In non-inspection
When surveying bridge, trailer delivers test carriage under the traction of outside tractor.As can be seen here, this utility model energy
Enough utilize trailer to realize the delivery of test carriage, simple in construction, it is possible to increase the efficiency of damage detection for bridges.
According to below in conjunction with the accompanying drawing detailed description to this utility model specific embodiment, those skilled in the art
Will become more apparent from of the present utility model above-mentioned and other purposes, advantage and feature.
Accompanying drawing explanation
Describe in detail more of the present utility model the most by way of example, and not by way of limitation
Specific embodiment.Reference identical in accompanying drawing denotes same or similar parts or part.This area
It is to be understood by the skilled artisans that what these accompanying drawings were not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is that the structure tapping scan-type damage detection for bridges car according to one embodiment of this utility model is shown
It is intended to；
Fig. 2 is test carriage in the percussion scan-type damage detection for bridges car according to one embodiment of this utility model
Structural representation；
Fig. 3 is the structural representation of the drive link arranged on the trailer according to one embodiment of this utility model.
In figure: tap scan-type damage detection for bridges car 1, test carriage 10, signal pickup assembly 11, trailer
12, elevating mechanism 121, traction apparatus 122, tap the front vehicle wheel 123 of scan-type damage detection for bridges car 1,
Tap the rear wheel 124 of scan-type damage detection for bridges car 1, rocking arm 125, position-limited rack 1211, gag lever post
1212, lift lead 1213, drive link 126, pole 1261, rotary shaft 1262, power amplifier
13, horizontal plate 101, knocking device 102, the front vehicle wheel 103 of test carriage 10, the rear wheel of test carriage 10
104, reinforcing ring 105.
Detailed description of the invention
For solving above-mentioned technical problem, this utility model provides the percussion scan-type bridge of a kind of novel structure
Damage check car.See Fig. 1 or Fig. 2, the percussion scan-type damage detection for bridges car that this utility model provides
1, including applying bridge to be measured tap the test carriage 10 of load and be delivered to survey for collecting bridge to be measured
The signal pickup assembly 11 of the response signal of the percussion load in test run 10, signal pickup assembly 11 can be by
The bridge response signal collected is delivered to signal processing system and is acted upon analyzing, and obtains bridge damnification information.
Further, the percussion scan-type damage detection for bridges car 1 that this utility model provides also includes: be used for
The trailer 12 of delivery test carriage 10.Being provided with elevating mechanism 121 on trailer 12, elevating mechanism 121 is used for:
Before delivery test carriage 10, control test carriage 10 and rise to specify position, so that in carry process
Test carriage 10 and interval, delivery road surface are arranged；Before detection bridge, control test carriage 10 and fall, so that
When detecting bridge, test carriage 10 can move on bridge to be measured；
Being additionally provided with traction apparatus 122 on trailer 12, traction apparatus 122 (is not shown in figure with outside tractor
Go out) connect, so that when detecting bridge, trailer 12 drags test carriage under the traction of outside tractor
10 move on bridge to be measured；When non-detection bridge, trailer 12 delivers under the traction of outside tractor
Test carriage 10.
In alternative embodiment of the present utility model, as it is shown in figure 1, trailer 12 can include a front truck
Wheel 123 and two rear wheels 124, trailer 12 is additionally provided with the rocking arm 125 controlling front vehicle wheel 123 lifting,
Rocking arm 125 is used for: before delivery test carriage 10, controls front vehicle wheel 123 and falls；Before detection bridge,
Control front vehicle wheel 123 to rise.Owing to trailer 12 is before delivery test carriage 10, elevating mechanism 121 will be surveyed
Test run 10 rises to specify position, and front vehicle wheel 123 falls the stability that ensure that detection car 1.?
In actual application, before delivery test carriage 10, first can be controlled front vehicle wheel 123 by rocking arm 125 and fall,
Then controlled test carriage 10 by elevating mechanism 121 to rise to specify position.When detecting bridge, elevator
Structure 121 controls test carriage 10 and falls, and now can be controlled front vehicle wheel 123 by rocking arm 125 and rise, in order to
Bridge to be measured is detected by test carriage 10.
In alternative embodiment of the present utility model, as it is shown in figure 1, elevating mechanism 121 includes position-limited rack 1211
With gag lever post 1212, when non-detection bridge, position-limited rack 1211 coordinates picking-up test carriage with gag lever post 1212
10.In actual applications, as shown in Figure 1, it is possible to use two gag lever posts 1212 and position-limited rack 1211 are joined
Close and hold up test carriage 10.
In alternative embodiment of the present utility model, as it is shown in figure 1, elevating mechanism 121 also includes at least four
The lifting lead 1213 (showing three lifting leads in Fig. 1) that root is vertically arranged, every
Lifting lead 1213 is connected with position-limited rack 1211, so that position-limited rack 1211 is at elevating mechanism 121
Vertically rise or fall under driving, and then make the test carriage 10 on position-limited rack 1211 along vertically side
Ramp up or decline.
In alternative embodiment of the present utility model, as it is shown in figure 1, be additionally provided with drive link on trailer 12
126, drive link 126 is for connecting test car 10 and trailer 12, and when detecting bridge, transmission trailer 12 is executed
Add to the power that test carriage 10 moves forward.As shown in Figure 1 or 2, test carriage 10 includes horizontal plate 101,
Horizontal plate 101 is connected with drive link 126.In actual applications, drive link 126 can dismountable be installed
On the horizontal plate 101 of test carriage 10, drive link 126 can also be welded on the horizontal plate 101 of test carriage 10
On, this utility model is without limitation.
As it is shown on figure 3, drive link 126 includes pole 1261 and rotary shaft 1262, when test carriage 10 is along perpendicular
When Nogata ramps up or declines, pole 1261 can rotate in rotary shaft 1262.
In alternative embodiment of the present utility model, as in figure 2 it is shown, be provided with percussion dress on test carriage 10
Putting 102, knocking device 102 produces and taps load, will hit against load by test carriage 10 and is transferred to bridge to be measured
Beam.Knocking device 102 can be vibrator, and such as JKZ series vibrator, vibrator is fixedly arranged on test
On car 10, in particular, vibrator includes base and fuselage, and base is fixed on test carriage 10,
And the most seamless affixed, vibrator fuselage is arranged on base, and vibrator has been conventional device, on the market
There is plurality of specifications, can select according to actually detected needs, about the internal structure of vibrator and function not
Describe in detail again.
In alternative embodiment of the present utility model, as it is shown in figure 1, tap scan-type damage detection for bridges car
1 also includes power amplifier 13, and knocking passes to knocking device 102 after power amplifier 13 amplifies.
In actual applications, will hit against control device (not shown) and be connected with power amplifier 13, tap
Control device generation knocking and pass to knocking device 102 after power amplifier 13 amplifies.Tap and control
Device can be arranged in outside tractor (not shown), integrates with outside tractor, with
Improve integration degree.
In alternative embodiment of the present utility model, as in figure 2 it is shown, test carriage 10 is except having carrying
Outside effect, as it has been described above, it also acts as transmission taps the effect of load, so, test carriage 10 itself should
Through particular design to reduce or to be completely eliminated cushioning effect and the interference tapping load, make percussion load
Can completely be efficiently transferred to bridge to be measured, the most in the present embodiment, test carriage 10 includes level
Plate 101 (i.e. vehicle body) and wheel, wherein horizontal plate 101 can be rigidity, and horizontal plate 101 material is preferable
For steel, between each parts of horizontal plate 101, affixed mode is used to connect, and each member in tight patch
Close, disturb the transmission tapping load to reduce or produce collision between each parts of elimination of level plate 101.
Horizontal plate 101 itself is designed as rigid suspension, weakens percussion load from without buffering.Horizontal plate 101
Weight should not kick the beam, in order to avoid tap time produce beat.It addition, the weight of horizontal plate 101 and structure are also
Should be through particular design, during design and producing, according to the weight of horizontal plate 101 and structure just
Determine the natural frequency of test carriage 10 itself, when knocking device 102 applies to tap load, it should be noted that
Tap the frequency of load, it is to avoid test carriage 10 produces covibration.
Wheel is also rigid wheel, is arranged at below horizontal plate 101 or both sides, and its selection can be preferably steel
Material, to have good shock resistance and to tap load transmission performance, felly is slow without plastic cement tire etc.
Rush parts, say, that wheel is rigidity wheel disc (such as steel wheel disc), rigidity wheel disc direct contact measured bridge
The surface of beam, the most effectively to tap load to bridge to be measured transmission.In the present embodiment, test carriage 10
Wheel include front vehicle wheel 103 and rear wheel 104, front vehicle wheel 103 is provided with one, and rear wheel 104 sets
Having two, front vehicle wheel 103 is positioned on vertical equity plate 101 axis of test carriage 10, two rear wheels 104
The symmetrical both sides being located at horizontal plate 101 axis, front vehicle wheel 103 and two rear wheels 104 form isosceles three
Dihedral, so that the movement of test carriage 10 is more stable, and when horizontal plate 101 bears percussion load,
Test carriage 10 still can stably move ahead, and does not beat or jolts.Certainly, test carriage 10 wheel
Quantity and the mode of laying can measure environment flexible design according to reality, and those skilled in the art can be according to above-mentioned public affairs
Open content accommodation and design other scheme, but protection domain of the present utility model all should be belonged to.
In alternative embodiment of the present utility model, as in figure 2 it is shown, on the horizontal plate 101 of test carriage 10
Being additionally provided with reinforcing ring 105, knocking device 102 annular is fixed on reinforcing ring 105, reinforcing ring 105 energy
Enough improve the rigidity of test carriage 10, it is possible to uniformly transfer knocking device 102 and produce percussion load.
In alternative embodiment of the present utility model, test carriage 10 is additionally provided with acceleration transducer (figure
Not shown in), acceleration transducer is for picking up the percussion load that bridge to be measured is delivered on test carriage 10
Response signal；Signal pickup assembly 11 is connected to acceleration transducer, collects acceleration transducer pickup
The response signal arrived.In actual applications, it is also possible to use other sensors to pick up bridge to be measured and be delivered to survey
The response signal of the percussion load in test run 10, such as velocity sensor, displacement transducer etc., this practicality is new
Type is without limitation.
The bridge of collection can be responded signal and be delivered at signal processing system by signal pickup assembly 11
Reason is analyzed, and obtains bridge damnification information.Signal processing system is can process designed by the present inventor and adds
The detection signal of velocity sensor pickup draws the computer system of bridge damnification information, and computer system is permissible
It is arranged on PC terminal.In order to obtain high-quality measurement data, described signal pickup assembly 11 can be high
The data collecting card of precision, data collecting card can be integrated into inside above-mentioned towing vehicle, about the high-precision number of degrees
According to capture card, it is conventional hardware on the market, therefore has no longer described in detail.
In alternative embodiment of the present utility model, it is also possible to set for tapping scan-type damage detection for bridges car 1
Meter shell (not shown), can be arranged on the switch of elevating mechanism 121 on shell, such as, green
Color switch rises for control test carriage 10, red switch falls for controlling test carriage 10.The side of shell is also
It is provided with monitoring terminal, with real-time monitoring detection object (such as bridge to be measured) surrounding enviroment；The lower section of shell
It is additionally provided with ground detection terminal, with monitoring ground surrounding enviroment in real time.Tap scan-type damage detection for bridges
It is additionally provided with control panel, including various on and off switch (such as high-tension electricity charge port, low tension charging in car 1
Mouth, vibrator power supply, PC terminal supplying power, elevating mechanism motor power, acceleration transducer power supply etc.),
Photographic head switch etc., open the back door of shell i.e. it can be seen that.
So far, although those skilled in the art will appreciate that the most detailed to illustrate and describe this practicality new
Multiple exemplary embodiments of type, but, in the case of without departing from this utility model spirit and scope, still
Can directly determine according to this utility model disclosure or derive the many meeting this utility model principle
Other variations or modifications.Therefore, scope of the present utility model is it is understood that and regard as covering all these
Other variations or modifications.
Claims (10)
1. tap a scan-type damage detection for bridges car, including bridge to be measured applies to tap the survey of load
Test run and for collecting the letter responding signal of the percussions load that bridge to be measured is delivered on described test carriage
Number harvester, it is characterised in that also include:
For delivering the trailer of described test carriage；
Being provided with elevating mechanism on described trailer, described elevating mechanism is used for: before delivering described test carriage,
Control described test carriage to rise to specify position, so that on test carriage described in carry process and delivery road surface
Interval is arranged；Before detection bridge, control described test carriage and fall, so that the described survey when detecting bridge
Test run can be moved on bridge to be measured；
Being additionally provided with traction apparatus on described trailer, described traction apparatus is connected with outside tractor, so that
When detecting bridge, described trailer drags described test carriage at bridge to be measured under the traction of described outside tractor
Move on beam；When non-detection bridge, described trailer delivers described survey under the traction of described outside tractor
Test run.
Percussion scan-type damage detection for bridges car the most according to claim 1, it is characterised in that institute
State trailer and include a front vehicle wheel and two rear wheels, described trailer is additionally provided with the described front vehicle wheel liter of control
The rocking arm of fall, described rocking arm is used for: before delivering described test carriage, controls described front vehicle wheel and falls；?
Before detection bridge, control described front vehicle wheel and rise.
Percussion scan-type damage detection for bridges car the most according to claim 1, it is characterised in that institute
State elevating mechanism and include position-limited rack and gag lever post, when non-detection bridge, described position-limited rack and described gag lever post
Coordinate and hold up described test carriage.
Percussion scan-type damage detection for bridges car the most according to claim 3, it is characterised in that institute
State elevating mechanism and also include that at least four lifting leads vertically arranged, every described lifting guide
Post is connected with described position-limited rack so that described position-limited rack under the driving of described elevating mechanism vertically
Rise or fall, and then the described test carriage on described position-limited rack is vertically risen or fallen.
Percussion scan-type damage detection for bridges car the most according to claim 1, it is characterised in that institute
Stating and be additionally provided with drive link on trailer, described drive link is used for connecting described test carriage and described trailer, in inspection
Transmit described trailer when surveying bridge and be applied to the power that described test carriage moves forward.
Percussion scan-type damage detection for bridges car the most according to claim 5, it is characterised in that institute
State test carriage and include that horizontal plate, described horizontal plate are connected with described drive link.
Percussion scan-type damage detection for bridges car the most according to claim 1, it is characterised in that institute
Stating and be provided with knocking device on test carriage, described knocking device produces and taps load, will by described test carriage
Tap load and be transferred to bridge to be measured.
Percussion scan-type damage detection for bridges car the most according to claim 7, it is characterised in that also
Including: power amplifier, knocking passes to described knocking device after described power amplifier amplifies.
9. according to the percussion scan-type damage detection for bridges car described in claim 7 or 8, it is characterised in that
Being additionally provided with reinforcing ring on described test carriage, described knocking device annular is fixed on described reinforcing ring, described
Reinforcing ring transmits described knocking device and produces percussion load.
Percussion scan-type damage detection for bridges car the most according to claim 1, it is characterised in that institute
Stating and be additionally provided with acceleration transducer on test carriage, described acceleration transducer is used for picking up bridge to be measured transmission
The response signal of the percussion load on described test carriage；Described signal pickup assembly is connected to described acceleration
Sensor, collects the response signal that described acceleration transducer picks up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448259.7U CN205620361U (en) | 2016-05-17 | 2016-05-17 | Strike damage of scanning formula bridge and detect car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620448259.7U CN205620361U (en) | 2016-05-17 | 2016-05-17 | Strike damage of scanning formula bridge and detect car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205620361U true CN205620361U (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620448259.7U Active CN205620361U (en) | 2016-05-17 | 2016-05-17 | Strike damage of scanning formula bridge and detect car |
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| CN (1) | CN205620361U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546716A (en) * | 2016-10-21 | 2017-03-29 | 钟立朋 | A kind of mixed mud carrying out flaw detection car |
| CN107727339A (en) * | 2017-06-01 | 2018-02-23 | 阳洋 | A kind of detection means of the bridge damnification diagnostic method based on Vehicle-Bridge Coupling System |
| CN109839441A (en) * | 2019-03-20 | 2019-06-04 | 合肥工业大学 | A kind of bridge Modal Parameters Identification |
| CN110220594A (en) * | 2019-07-24 | 2019-09-10 | 哈尔滨工业大学（深圳） | Mobile platform and the vibration detecting system acquired based on distributed synchronization |
| CN110539777A (en) * | 2019-09-29 | 2019-12-06 | 王艺锦 | intelligent track low strain crack detection device |
| CN112903488A (en) * | 2021-01-26 | 2021-06-04 | 常州市恒正交通工程试验检测中心有限公司 | Bridge detects uses supporting equipment |
| CN117420035A (en) * | 2023-12-19 | 2024-01-19 | 江苏广亚建设集团有限公司 | Bridge bearing capacity testing device |
-
2016
- 2016-05-17 CN CN201620448259.7U patent/CN205620361U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546716A (en) * | 2016-10-21 | 2017-03-29 | 钟立朋 | A kind of mixed mud carrying out flaw detection car |
| CN107727339A (en) * | 2017-06-01 | 2018-02-23 | 阳洋 | A kind of detection means of the bridge damnification diagnostic method based on Vehicle-Bridge Coupling System |
| CN109839441A (en) * | 2019-03-20 | 2019-06-04 | 合肥工业大学 | A kind of bridge Modal Parameters Identification |
| CN110220594A (en) * | 2019-07-24 | 2019-09-10 | 哈尔滨工业大学（深圳） | Mobile platform and the vibration detecting system acquired based on distributed synchronization |
| CN110539777A (en) * | 2019-09-29 | 2019-12-06 | 王艺锦 | intelligent track low strain crack detection device |
| CN110539777B (en) * | 2019-09-29 | 2021-02-02 | 王艺锦 | Intelligent track low strain crack detection device |
| CN112903488A (en) * | 2021-01-26 | 2021-06-04 | 常州市恒正交通工程试验检测中心有限公司 | Bridge detects uses supporting equipment |
| CN112903488B (en) * | 2021-01-26 | 2022-08-16 | 常州市恒正交通工程试验检测中心有限公司 | Bridge detects uses supporting equipment |
| CN117420035A (en) * | 2023-12-19 | 2024-01-19 | 江苏广亚建设集团有限公司 | Bridge bearing capacity testing device |
| CN117420035B (en) * | 2023-12-19 | 2024-04-12 | 江苏广亚建设集团有限公司 | Bridge bearing capacity testing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |