CN208399440U - A kind of supersonic detector with U-shaped combined apparatus - Google Patents
A kind of supersonic detector with U-shaped combined apparatus Download PDFInfo
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- CN208399440U CN208399440U CN201820987099.2U CN201820987099U CN208399440U CN 208399440 U CN208399440 U CN 208399440U CN 201820987099 U CN201820987099 U CN 201820987099U CN 208399440 U CN208399440 U CN 208399440U
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- couplant
- combined apparatus
- grip part
- shaped combined
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Abstract
The utility model provides a kind of supersonic detector with U-shaped combined apparatus, comprising: supersonic detector ontology；Couplant storing apparatus, the couplant storing apparatus and the supersonic detector ontology integrally connected or separately positioned；U-shaped combined apparatus, the U-shaped combined apparatus includes that couplant smears component, probe component and torsional spring, when the U-shaped combined apparatus is in running order, first grip part and the inverted u-shaped structure in the second grip part, the central axis of the roller is in the plane where first grip part and second grip part；And attachment device, the attachment device include couplant conduit and conducting wire.In flaw detection work, flaw detection personnel hold U-shaped combined apparatus, and move integrally U-shaped combined apparatus, so as to realize the workflow detected a flaw on one side the daubing coupling agent while simultaneously, greatly improve work efficiency.
Description
Technical field
The utility model relates to supersonic detector fields, and in particular to a kind of ultrasonic wave spy with U-shaped combined apparatus
Hurt instrument.
Background technique
Supersonic detector is a kind of Portable industrial nondestructive inspection instrument, it can be quick, convenient, not damaged, accurate
Ground carries out detection, the positioning, assessment and diagnosis of inside workpiece number of drawbacks (crackle, is mingled with loose, stomata).Both it can use
In laboratory, engineering site can be used for.Be widely used in boiler, pressure vessel, space flight, aviation, electric power, petroleum, chemical industry,
Offshore oil, pipeline, military project, shipbuilding, automobile, machine-building, metallurgy, metal-processing industry, steel construction, railway traffic, core
The industries such as energy electric power, colleges and universities.
At present when using supersonic detector, need then to reuse hairbrush to workpiece surface daubing coupling agent to be measured
So that the uniform coupling agent on workpiece for measurement surface is smeared, ultrasonic probe is next placed on object under test surface rectangle again and is moved
It is dynamic to carry out next step flaw detection work.
During entire flaw detection work, before flaw detection need in workpiece for measurement surface daubing coupling agent, detect a flaw after the completion of need by
The couplant processing of workpiece surface is clean.The treatment process mesh of entire couplant is not only cumbersome, and the personnel that detect a flaw are to it
Usage amount, which grasps the inaccurate waste that will lead to couplant, further will affect flaw detection efficiency.If in field work or
When person's high altitude operation, flaw detection personnel usually carry supersonic detector on the other hand, and proficiency hand hold transducer is detected a flaw, and also to carry out coupling
The smearing work of mixture, considerably increases work difficulty.
Utility model content
The utility model provides a kind of supersonic detector with U-shaped combined apparatus, comprising:
Supersonic detector ontology, the supersonic detector ontology includes line trap；
Couplant storing apparatus, the couplant storing apparatus include couplant cabinet and catheter plug, and the conduit is inserted
Head is set to the bottom of the couplant cabinet, and the couplant cabinet has filling opening, inflatable interface and check valve, described
Check valve is set to the lower section of the inflatable interface, and the inflatable interface exposes to the couplant cabinet, and the couplant accommodates
Device and the supersonic detector ontology integrally connected are separately positioned；
U-shaped combined apparatus, the U-shaped combined apparatus includes that couplant smears component, probe component and torsional spring, described
It includes L-shaped the first hollow grip part, couplant storage case, isolation board, support column, elastic component, brush that couplant, which smears component,
Head assembly and silica gel sleeve pipe, the couplant storage case have couplant import, couplant outlet and couplant cavity,
The brush head assembly includes logical liquid plate, roller, bristle and cylinder supports, and the probe component includes L-shaped hollow the
Two grip parts, probe and probe holder, first grip part is connected with the second grip part by the torsional spring, described
Couplant storage case is set to the lower section of first grip part, and the isolation board is set in the couplant cavity, the support
Column is movably inserted into gap in couplant outlet, the elastic component cover the support column outside and connection described in
Couplant outlet and the logical liquid plate, the silica gel sleeve pipe are separately connected the outer of the couplant storage case and the logical liquid plate
Week, the roller are connected to below the logical liquid plate by the cylinder supports, and the bristle is uniformly distributed in the roller
Outer surface, the probe holder are connected to the bottom of second grip part, and the probe exposes to the probe holder,
When the U-shaped combined apparatus is in running order, first grip part and the inverted u-shaped structure in the second grip part, institute
The central axis of roller is stated in the plane where first grip part and second grip part；And
Attachment device, the attachment device include couplant conduit and conducting wire, and one end of the couplant conduit connects institute
Catheter plug is stated, the other end passes through first grip part and is connected to the couplant import of the couplant storage case, described
One end of conducting wire connects the line trap, and the other end passes through described in second grip part and the probe holder and connection
Probe.Couplant needed for being packed into enough work in couplant storing apparatus, couplant are passed through coupling by couplant conduit
Inside agent application device, in flaw detection work, flaw detection personnel hold first grip part and described second of U-shaped combined apparatus
Grip part gives certain pressure to workpiece for measurement surface, and elastic component is compressed, so that support column pushes up isolation board, is made
The liquid obtained in couplant cavity uniformly flows to brush cylinder by logical liquid plate, then is uniformly smeared with brush cylinder, then whole shifting
U-shaped combined apparatus is moved, to complete flaw detection process using probe.U-shaped combined apparatus allow described the utility model simultaneously
It realizes the workflow detected a flaw while daubing coupling agent, greatly improves work efficiency.
Further, the utility model further includes following additional technical feature:
Further, there are several through-holes on the logical liquid plate.
Further, the supersonic detector ontology has clamp rail, and the couplant cabinet has card slot, the clamp rail
It cooperates with the card slot.To realize the supersonic detector ontology and the couplant cabinet integrally connected or
It is separately positioned.
Further, the clamp rail is set to the right side of the supersonic detector ontology, and the card slot is set to the coupling
The left side of agent cabinet, the supersonic detector ontology and the couplant cabinet are detachably connected.
Further, the first nipple and fast grafting are equipped between first grip part and the couplant storage case
Head is equipped with the second nipple between second grip part and the probe holder.First nipple and described
Second nipple is conveniently replaceable different types of probe and couplant, and the quick connector facilitates connecting line.
Further, the elastic component is spring.
Further, the supersonic detector with U-shaped combined apparatus further comprises locating part, the locating part
Between the probe holder and the opposite face of the couplant storage case, the total length of the locating part is equal to the U
Type combined apparatus in working condition described in distance between the first grip part and second grip part inner surface.For example, this
Utility model only includes the locating part, and the locating part is set to the probe holder or the couplant storage case
Inner surface, and be located at the probe holder and the couplant storage case centre.To prevent to U-shaped combined apparatus
Curable grip spend it is big caused by U-shaped combined apparatus malformation.
Further, the quantity of the locating part is 2, the inside table of the probe holder and the couplant storage case
Face is respectively equipped with a locating part, and the length of two locating parts is identical and is located along the same line.
Further, it is L1 that the couplant, which smears the total length of component, and the total length of the probe component is L2, L1 >
L2.More smooth when daubing coupling agent to guarantee, probe will not be coupled agent and pollute and couplant be hindered to smear
Journey.
Further, the torsional spring can windup-degree range be 900-1800, when the U-shaped combined apparatus is in work
When state, the windup-degree of the torsional spring is 900。
The additional aspect of the utility model and advantage will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the off working state enlarged structure schematic diagram of U-shaped combined apparatus according to the present utility model；
Fig. 3 is that the working condition enlarged structure of the couplant smearing component of U-shaped combined apparatus according to the present utility model is shown
It is intended to.
In Fig. 1,10 be supersonic detector ontology, and 12 be line trap, and 21 be couplant cabinet, and 211 be filling opening,
212 be inflatable interface, and 214 be check valve, and 22 be catheter plug, and 24 be torsional spring, and 311 be the first grip part, and 312 be the first screw thread
Interface, 313 be quick connector, and 314 be couplant storage case, and 3181 be roller, and 319 be silica gel sleeve pipe, and 321 be the second gripping
Portion, 322 be the second nipple, and 323 be probe, and 324 be probe holder, and 33 be locating part, and 41 be couplant conduit, and 42 are
Conducting wire；
In Fig. 2,315 be isolation board, and 316 be support column, and 3171 be spring, and 3184 be logical liquid plate；
In Fig. 3,3143 be couplant cavity, and 3182 be bristle, and 3183 be cylinder supports, and 31841 be through-hole.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
In the description of the present invention, it should be understood that term " on ", "lower", "bottom", "top", "front", "rear",
The orientation or positional relationship of the instructions such as "inner", "outside", " cross ", " perpendicular " is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " joins
Connect ", " connection ", " connected ", " connection ", " cooperation " shall be understood in a broad sense, for example, it may be being fixedly connected, be integrally connected,
It can be and be detachably connected；It can be the connection inside two elements；It can be directly connected, it can also be by between intermediary
It connects connected；" cooperation " can be the cooperation in face and face, be also possible to the cooperation a little with face or line and face, also matching including hole axle
It closes, for the ordinary skill in the art, above-mentioned term in the present invention specific can be understood with concrete condition
Meaning.
The design of the utility model is as follows, accommodates dress by increasing couplant on existing supersonic detector ontology 10
20, U-shaped combined apparatus 30 and attachment device 40 are set, so that couplant smears process and flaw detection process is combined into one.Simplify and visits
Hurt step, significantly offer working efficiency.It economizes on resources, reduces because couplant smears uneven, excessive bring waste problem.Subtract
Few work difficulty under the maximum conditions such as field.
As shown in Figure 1, the utility model provides a kind of supersonic detector with U-shaped combined apparatus, comprising: ultrasonic wave
Defectoscope ontology 10, the supersonic detector ontology 10 include line trap 12；
Couplant storing apparatus 20, the couplant storing apparatus 20 include couplant cabinet 21 and catheter plug 22, institute
The bottom that catheter plug 22 is set to the couplant cabinet 21 is stated, the couplant cabinet 21 has filling opening 211, inflatable interface
212 and check valve 214, the check valve 214 is set to the lower section of the inflatable interface 212, and the inflatable interface 212 is exposed
In the couplant cabinet 21, the couplant storing apparatus 20 and 10 integrally connected of supersonic detector ontology or point
From setting；
U-shaped combined apparatus 30, the U-shaped combined apparatus 30 include couplant smear component 31, probe 323 components 32, with
And torsional spring 24, the couplant smear component 31 include L-shaped the first hollow grip part 311, couplant storage case 314, every
From plate 315, support column 316, elastic component 317, brush head assembly 318 and silica gel sleeve pipe 319, the couplant storage case 314 has
There are couplant import 3141, couplant outlet 3142 and couplant cavity 3143, the brush head assembly 318 includes logical liquid plate
3184, roller 3181, bristle 3182 and cylinder supports 3183, the probe component 32 include L-shaped hollow second holding
It holds portion 321, probe 323 and probe holder 324, first grip part 311 and the second grip part 321 and passes through the torsion
Spring 24 connects, and the couplant storage case 314 is set to the lower section of first grip part 311, and the isolation board 315 is set to described
In couplant cavity 3143, the support column 316 is movably inserted into gap in the couplant outlet 3142, the elasticity
317 sets of part the support column 316 outside and connect the couplant outlet 3142 and the logical liquid plate 3184, the silica gel
Casing 319 is separately connected the periphery of the couplant storage case 314 and the logical liquid plate 3184, and the roller 3181 passes through described
Cylinder supports 3183 are connected to 3184 lower section of logical liquid plate, and the bristle 3182 is uniformly distributed in 3181 appearance of roller
Face, the probe holder 324 are connected to the bottom of second grip part 321, and it is solid that the probe 323 exposes to the probe
Determine part 324, when the U-shaped combined apparatus 30 is in running order, first grip part 311 and second grip part
321 inverted u-shaped structures, the central axis of the roller 3181 is in first grip part 311 and second grip part 321
The plane at place；And
Attachment device 40, the attachment device 40 include couplant conduit 41 and conducting wire 42, the couplant conduit 41
One end connects the catheter plug 22, and the other end passes through first grip part 311 and is connected to the couplant storage case 314
Couplant import 3141, one end of the conducting wire 42 connects the line trap 12, and the other end passes through second grip part
321 and the probe holder 324 and connect it is described probe 323.It is packed into couplant storing apparatus 20 needed for enough work
Couplant, couplant by couplant conduit 41 be passed through couplant smear component 31 inside, in flaw detection work, detect a flaw personnel
First grip part 311 and second grip part 321 for holding U-shaped combined apparatus 30, give one to workpiece for measurement surface
Fixed pressure, elastic component 317 are compressed, so that support column 316 pushes up isolation board 315, so that in couplant cavity 3143
Liquid brush cylinder 3181 is uniformly flowed to by logical liquid plate 3184, then with the uniform smearing of brush cylinder 3181, then move integrally U
Type combined apparatus 30, to complete flaw detection process using probe 323.U-shaped combined apparatus 30 makes described the utility model can be with
It realizes the workflow detected a flaw while daubing coupling agent simultaneously, greatly improves work efficiency.
As shown in Figure 3, it is preferable that some embodiments according to the present utility model have on the logical liquid plate 3184 several
Through-hole 31841.
Preferably, some embodiments according to the present utility model, the supersonic detector ontology 10 have clamp rail 11, institute
Couplant cabinet 21 is stated with card slot 213, the clamp rail 11 cooperates with the card slot 213.To realize the ultrasonic wave
The integrally connected or separately positioned of defectoscope ontology 10 and the couplant cabinet 21.
Preferably, some embodiments according to the present utility model, the clamp rail 11 are set to the supersonic detector ontology
10 right side, the card slot 213 are set to the left side of the couplant cabinet 21, the supersonic detector ontology 10 and the coupling
Mixture cabinet 21 is detachably connected.
As shown in Figure 2, it is preferable that some embodiments according to the present utility model, first grip part 311 and the coupling
The first nipple 312 and quick connector 313, second grip part 321 and the probe are equipped between mixture storage case 314
The second nipple 322 is equipped between fixing piece 324.First nipple 312 and second nipple 322 are convenient for
Different types of probe and couplant are replaced, the quick connector 313 facilitates connecting line.
Preferably, some embodiments according to the present utility model, the elastic component 317 are spring 3171.
Preferably, some embodiments according to the present utility model, the supersonic detector with U-shaped combined apparatus into
One step includes locating part 33, and the locating part 33 is set to the opposite of the probe holder 324 and the couplant storage case 314
Between face, the total length of the locating part 33 be equal to the U-shaped combined apparatus 30 in working condition described in the first grip part 311
The distance between described second grip part, 321 inner surface.For example, the utility model only includes the locating part 33, institute
Locating part 33 is stated set on the probe holder 324 or the inner surface of the couplant storage case 314, and is located at the spy
The centre of head fixing piece 324 and the couplant storage case 314.To prevent the curable grip to U-shaped combined apparatus 30 from spending greatly
The malformation of caused U-shaped combined apparatus 30.
As shown in Figs. 1-2, it is preferable that some embodiments according to the present utility model, the quantity of the locating part 33 are 2,
The inner surface of the probe holder 324 and the couplant storage case 314 is respectively equipped with a locating part 33, described in two
The length of locating part 33 is identical and is located along the same line.
Preferably, some embodiments according to the present utility model, the total length that the couplant smears component 31 is L1, institute
The total length for stating probe component 32 is L2, L1 > L2.More smooth when daubing coupling agent to guarantee, probe 323 will not be by
Couplant pollutes and couplant is hindered to smear process.
Preferably, some embodiments according to the present utility model, the torsional spring 24 can windup-degree range be 900-
1800, when the U-shaped combined apparatus 30 is in running order, the windup-degree of the torsional spring 24 is 900。
It is any to refer to that " one embodiment ", " embodiment ", " illustrative examples " etc. mean to combine embodiment description
Specific component, structure or feature are contained at least one embodiment of the utility model.Show in this specification everywhere this
The statement of meaning property is not necessarily referring to identical embodiment.Moreover, when combining any embodiment to describe specific component, structure or spy
When point, advocated, component, structure or feature in conjunction with as the realization of other embodiments all fall within those skilled in the art
Within the scope of member.
Although multiple illustrative examples referring to the utility model carry out specific embodiment of the present utility model
Detailed description, it must be understood that those skilled in the art can be designed that various other improvement and embodiment, these change
It will be fallen within the spirit and scope of the utility model principle into embodiment.Specifically, in aforementioned disclosure, attached drawing and power
Within the scope of benefit requires, reasonable modification can be made in terms of the arrangement that components and/or sub-combination are laid out and changed
Into without departing from the spirit of the utility model.In addition to components and/or the variations and modifications of layout aspect, range is by institute
Attached claim and its equivalent limit.
Claims (10)
1. a kind of supersonic detector with U-shaped combined apparatus characterized by comprising
Supersonic detector ontology, the supersonic detector ontology includes line trap；
Couplant storing apparatus, the couplant storing apparatus include couplant cabinet and catheter plug, and the catheter plug is set
In the bottom of the couplant cabinet, the couplant cabinet has filling opening, inflatable interface and check valve, described unidirectional
Valve is set to the lower section of the inflatable interface, and the inflatable interface exposes to the couplant cabinet, the couplant storing apparatus
With the supersonic detector ontology integrally connected or separately positioned；
U-shaped combined apparatus, the U-shaped combined apparatus include that couplant smears component, probe component and torsional spring, the coupling
It includes L-shaped the first hollow grip part, couplant storage case, isolation board, support column, elastic component, brush head group that component is smeared in agent
Part and silica gel sleeve pipe, the couplant storage case has couplant import, couplant outlet and couplant cavity, described
Brush head assembly includes logical liquid plate, roller, bristle and cylinder supports, and the probe component includes L-shaped hollow second holding
Portion, probe and probe holder are held, first grip part is connected with the second grip part by the torsional spring, the coupling
Agent storage case is set to the lower section of first grip part, and the isolation board is set in the couplant cavity, and the support column can
It is actively inserted into gap in the couplant outlet, the elastic component covers the outside in the support column and connects the coupling
Agent outlet and the logical liquid plate, the silica gel sleeve pipe are separately connected the periphery of the couplant storage case and the logical liquid plate, institute
It states roller to be connected to below the logical liquid plate by the cylinder supports, the bristle is uniformly distributed in the roller appearance
Face, the probe holder are connected to the bottom of second grip part, and the probe exposes to the probe holder, works as institute
State U-shaped combined apparatus it is in running order when, first grip part and the inverted u-shaped structure in the second grip part, the rolling
The central axis of cylinder is in the plane where first grip part and second grip part；And
Attachment device, the attachment device include couplant conduit and conducting wire, are led described in one end connection of the couplant conduit
Pipe plug, the other end pass through first grip part and are connected to the couplant import of the couplant storage case, the conducting wire
One end connect the line trap, the other end passes through second grip part and the probe holder and connects the spy
Head.
2. having the supersonic detector of U-shaped combined apparatus as described in claim 1, which is characterized in that on the logical liquid plate
With several through-holes.
3. having the supersonic detector of U-shaped combined apparatus as described in claim 1, which is characterized in that the ultrasonic wave is visited
Hurt instrument ontology with clamp rail, the couplant cabinet has card slot, and the clamp rail and the card slot cooperate.
4. having the supersonic detector of U-shaped combined apparatus as claimed in claim 3, which is characterized in that the clamp rail is set to
The right side of the supersonic detector ontology, the card slot are set to the left side of the couplant cabinet, the supersonic detector
Ontology and the couplant cabinet are detachably connected.
5. having the supersonic detector of U-shaped combined apparatus as described in claim 1, which is characterized in that described first holds
The first nipple and quick connector are equipped between portion and the couplant storage case, second grip part and the probe are solid
Determine to be equipped with the second nipple between part.
6. having the supersonic detector of U-shaped combined apparatus as described in claim 1, which is characterized in that the elastic component is
Spring.
7. having the supersonic detector of U-shaped combined apparatus as described in claim 1, which is characterized in that further comprise limit
Position part, the locating part are set between the probe holder and the opposite face of the couplant storage case, the locating part
Total length be equal to the U-shaped combined apparatus in working condition described between the first grip part and second grip part inner surface
Distance.
8. having the supersonic detector of U-shaped combined apparatus as claimed in claim 7, which is characterized in that the locating part
Quantity is 2, and the inner surface of the probe holder and the couplant storage case is respectively equipped with a locating part, described in two
The length of locating part is identical and is located along the same line.
9. having the supersonic detector of U-shaped combined apparatus as described in claim 1, which is characterized in that the couplant applies
The total length for smearing component is L1, and the total length of the probe component is L2, L1 > L2.
10. as described in claim 1 have U-shaped combined apparatus supersonic detector, which is characterized in that the torsional spring can
Windup-degree range is 900-1800, when the U-shaped combined apparatus is in running order, the windup-degree of the torsional spring is
900。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820987099.2U CN208399440U (en) | 2018-06-26 | 2018-06-26 | A kind of supersonic detector with U-shaped combined apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820987099.2U CN208399440U (en) | 2018-06-26 | 2018-06-26 | A kind of supersonic detector with U-shaped combined apparatus |
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| CN208399440U true CN208399440U (en) | 2019-01-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632967A (en) * | 2019-01-19 | 2019-04-16 | 厦门优而特技术咨询服务有限公司 | A kind of supersonic detector |
| CN111141824A (en) * | 2020-04-07 | 2020-05-12 | 西南交通大学 | Intelligent bridge steel structure crack detection system and method based on ultrasonic guided waves |
| CN112083079A (en) * | 2020-09-30 | 2020-12-15 | 西安天力金属复合材料股份有限公司 | Ultrasonic detection device with couplant smearing function and use method thereof |
| CN113550359A (en) * | 2021-09-13 | 2021-10-26 | 杭州伟业建设集团有限公司 | Pile foundation sound wave detection system and coupling agent adding device thereof |
| CN116687453A (en) * | 2023-08-01 | 2023-09-05 | 广州雪利昂生物科技有限公司 | Palm ultrasonic instrument for pulmonary detection |
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2018
- 2018-06-26 CN CN201820987099.2U patent/CN208399440U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632967A (en) * | 2019-01-19 | 2019-04-16 | 厦门优而特技术咨询服务有限公司 | A kind of supersonic detector |
| CN111141824A (en) * | 2020-04-07 | 2020-05-12 | 西南交通大学 | Intelligent bridge steel structure crack detection system and method based on ultrasonic guided waves |
| CN112083079A (en) * | 2020-09-30 | 2020-12-15 | 西安天力金属复合材料股份有限公司 | Ultrasonic detection device with couplant smearing function and use method thereof |
| CN113550359A (en) * | 2021-09-13 | 2021-10-26 | 杭州伟业建设集团有限公司 | Pile foundation sound wave detection system and coupling agent adding device thereof |
| CN116687453A (en) * | 2023-08-01 | 2023-09-05 | 广州雪利昂生物科技有限公司 | Palm ultrasonic instrument for pulmonary detection |
| CN116687453B (en) * | 2023-08-01 | 2023-10-10 | 广州雪利昂生物科技有限公司 | Palm ultrasonic instrument for pulmonary detection |
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