CN111141833A - Centre gripping formula concrete damage detection device - Google Patents
Centre gripping formula concrete damage detection device Download PDFInfo
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- CN111141833A CN111141833A CN202010045163.7A CN202010045163A CN111141833A CN 111141833 A CN111141833 A CN 111141833A CN 202010045163 A CN202010045163 A CN 202010045163A CN 111141833 A CN111141833 A CN 111141833A
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000036541 health Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2437—Piezoelectric probes
- G01N29/245—Ceramic probes, e.g. lead zirconate titanate [PZT] probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
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- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a clamping type concrete damage detection device which comprises a sensor and a clamping jig, wherein the sensor is arranged on the clamping jig, and the clamping jig is used for clamping a concrete test piece so that the sensor is tightly attached to the surface of the concrete test piece, thereby realizing the detection of the concrete test piece. The sensor is repeatedly utilized, the sensor is quickly mounted and dismounted, and the wiring complexity is greatly reduced.
Description
Technical Field
The invention relates to civil engineering, intelligent material technology and health monitoring technology, in particular to a concrete damage detection device.
Background
The piezoelectric ceramic has the unique positive piezoelectric effect and reverse piezoelectric effect, and becomes an important carrier in the field of structural health monitoring. The method has the characteristics of wide frequency response range, quick response, easy processing, low price and the like, and is widely applied to concrete structures. In recent years, detection techniques based on piezoelectric ceramics have been developed rapidly. For concrete detection, the piezoelectric ceramic sensor needs to be adhered to a concrete test piece, and is difficult to take down for recycling, so that the detection technology cost is increased.
The piezoelectric ceramic sensor with better performance has higher cost, and a large number of piezoelectric ceramic sensors are needed for detecting a concrete sample, so that the piezoelectric ceramic sensor for detecting concrete at present has generally lower performance. The traditional piezoelectric ceramic detection method has the advantages that the piezoelectric ceramic sensor needs to be bonded on the surface of concrete for 24 hours, so that the sensor can be used after being used, the delay is realized, and the detection timeliness is reduced. In engineering, a fixed piezoelectric ceramic sensor is used for detecting concrete, a large number of data lines need to be led, the arrangement is complicated, even some data lines need to be embedded in the structure, and the workload is greatly increased in the aspect of processing the data lines.
In order to overcome the defects, the technical personnel in the field actively innovate and research to create a novel clamping type concrete damage detection device.
Disclosure of Invention
Aiming at the problems in the prior art, the clamping type concrete damage detection device provided by the invention has the advantages that the sensor is repeatedly utilized, the sensor is rapidly installed and detached, and the wiring complexity is greatly reduced.
In order to solve the technical problems, the invention adopts a technical scheme that: the clamping type concrete damage detection device comprises a sensor and a clamping jig, wherein the sensor is installed on the clamping jig, and the clamping jig clamps a concrete sample tightly so that the sensor is tightly attached to the surface of the concrete sample to realize detection of the concrete sample.
Furthermore, the sensor is adhered to the surface of the clamping jig.
Further, the clamping jig comprises two mutually connected clamping parts which are respectively a first clamping part and a second clamping part, and two side faces of the concrete test piece are clamped tightly through the matching of the first clamping part and the second clamping part.
Further, the clamping jig further comprises elastic pieces, each clamping part comprises a handle, a bolt and a clamping jaw, a V-shaped part is formed between the front ends of the handles, the elastic pieces are installed between the two handles, and the front ends of the handles of the same clamping part are connected with the clamping jaws through the bolts.
Furthermore, the front end of the handle of the same clamping part is detachably connected with the clamping jaws through bolts, so that the included angle between the two clamping jaws is adjusted.
Further, the sensor is a piezoelectric ceramic sensor.
Furthermore, the sensor is connected with a lead, and the detection device is connected with external detection equipment through the lead.
Furthermore, the clamping jig is a steel jig.
Further, the elastic member is a spring.
The invention has the beneficial effects that:
the device comprises a sensor and a clamping jig, wherein the sensor is arranged on the clamping jig, the concrete test piece is clamped by the clamping jig, so that the sensor is tightly attached to the surface of the concrete test piece, and the detection of the concrete test piece is realized;
moreover, the device is convenient to mount and dismount, can be used as soon as being mounted and dismounted after being used up, can solve the problem of delay of the traditional mounting mode and can restore the structure to the maximum extent;
furthermore, the clamping jig comprises two clamping parts and an elastic piece, each clamping part comprises a handle, a bolt and a clamping jaw, a V shape is formed between the front ends of the two handles, the elastic piece is installed between the two handles, the front ends of the handles of the same clamping part are connected with the clamping jaws through the bolts, the clamping force between the two clamping jaws can be adjusted through the elastic piece, and the sensor can be ensured to be attached to the surface of a concrete test piece; in addition, through the bolt with the front end of the handle of same clamping part and the connection dismantled of clamping jaw, the angle and the distance between two clamping jaws of centre gripping tool can be adjusted to the bolt is twisted to the hand, anchor clamps can change with the angle when opening when closing, the degree of opening is big more, the angle change is just big more, can adjust the angle between the clamping jaw through the bolt is twisted to the hand, when making two handles open different angles, two clamping jaws still guarantee that the parallel can be applicable to the performance detection of not unidimensional concrete sample, meanwhile, adjusting bolt also can make the device be applicable to the concrete of different surface contained angles.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is a perspective view of the present invention (when clamping a concrete specimen);
FIG. 3 is a top view of the present invention;
the parts in the drawings are marked as follows:
the device comprises a sensor 1, a lead 11, a clamping jig 2, a concrete sample 3, a clamping part 21, a handle 211, a bolt 212, a clamping jaw 213 and an elastic piece 22.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and the present invention will be described in detail with reference to the accompanying drawings. The invention may be embodied in other different forms, i.e. it is capable of various modifications and changes without departing from the scope of the invention as disclosed.
Example (b): the utility model provides a centre gripping formula concrete damage detection device, as shown in fig. 1 to 3, detection device includes sensor 1 and centre gripping tool 2, the sensor install in the centre gripping tool, through centre gripping tool presss from both sides tight concrete sample 3 makes the sensor hug closely in thereby the surface of concrete sample realizes the detection to the concrete sample.
In this embodiment, the sensor is adhered to the surface of the clamping fixture, but other mounting methods may be adopted.
The clamping jig comprises two clamping parts 21 which are connected with each other and are respectively a first clamping part and a second clamping part, and two side faces of the concrete test piece are clamped tightly through the matching of the first clamping part and the second clamping part.
In this embodiment, the clamping fixture further includes elastic members 22, each of the clamping portions includes a handle 211, a bolt 212, and a clamping jaw 213, a V-shape is formed between the front ends of the two handles, and the elastic members are installed between the two handles to connect the front ends of the handles of the same clamping portion with the clamping jaw through the bolt. In this embodiment, the sensor is bonded to the inner surface of the jaw.
In this embodiment, the elastic member is a spring, but other similar elastic member structures may also be adopted.
The front end of the handle of the same clamping part is detachably connected with the clamping jaws through bolts, so that the included angle between the clamping jaws is adjusted.
The sensor is a piezo ceramic sensor but is not limited to this and may be other types of sensors such as a piezo crystal.
The sensor is connected with a lead 11, and the detection device is connected with external detection equipment through the lead. In this embodiment, the sensor is wire bonded.
The clamping fixture is made of steel, but not limited thereto, and other clamping fixtures can be adopted.
The invention has the following working principle and working process:
when the device is used, the detection device is clamped on two side faces of a concrete test piece, when the device is used for clamping concrete test pieces with different sizes, the two clamping jaws can be always kept in parallel through the adjusting bolt (if the bolt is not used, the clamping jig can only be used for detecting the concrete test piece with the same size, and if the device is used for the concrete test pieces with different sizes, the two clamping jaws are not parallel and cannot clamp the concrete test piece), and meanwhile, due to the action of the elastic piece, when the device is used for detecting the concrete test pieces with different sizes, the two clamping jaws and the piezoelectric ceramic sensor on the surface can be tightly attached to the surface of the concrete test piece;
when carrying out concrete damage and detecting, the handle of extrusion centre gripping tool makes the elastic component produce the clamping-force, and adjusting screw simultaneously guarantees that piezoceramics sensor and the surface that is detected the concrete test piece tightly laminates, then is connected piezoceramics sensor and external equipment with the wire, and the health monitoring data transmission that gathers piezoceramics sensor to external equipment on can.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings, or other related technical fields, are encompassed by the present invention.
Claims (9)
1. The utility model provides a centre gripping formula concrete damage detection device which characterized in that: the detection device comprises a sensor (1) and a clamping jig (2), wherein the sensor is installed on the clamping jig, and a concrete test piece (3) is clamped through the clamping jig, so that the sensor is tightly attached to the surface of the concrete test piece, and the detection of the concrete test piece is realized.
2. The clamp-on concrete damage detection device of claim 1, wherein: the sensor is adhered to the surface of the clamping jig.
3. The clamp-on concrete damage detection device of claim 1, wherein: the clamping jig comprises two clamping parts (21) which are connected with each other and are respectively a first clamping part and a second clamping part, and two side faces of the concrete test piece are clamped tightly through the matching of the first clamping part and the second clamping part.
4. The clamp-on concrete damage detection device of claim 3, wherein: the centre gripping tool still includes elastic component (22), each clamping part all includes handle (211), bolt (212) and clamping jaw (213), two form the V type between the front end of handle, the elastic component install in two between the handle, connect the front end and the clamping jaw of the handle of same clamping part through the bolt.
5. The clamp-on concrete damage detection device of claim 4, wherein: the front end of the handle of the same clamping part is detachably connected with the clamping jaws through bolts, so that the included angle between the clamping jaws is adjusted.
6. The clamp-on concrete damage detection device of claim 1, wherein: the sensor is a piezoelectric ceramic sensor.
7. The clamp-on concrete damage detection device of claim 1, wherein: the sensor is connected with a lead (11), and the detection device is connected with external detection equipment through the lead.
8. The clamp-on concrete damage detection device of claim 1, wherein: the clamping jig is a steel jig.
9. The clamp-on concrete damage detection device of claim 4, wherein: the elastic piece is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010045163.7A CN111141833A (en) | 2020-01-16 | 2020-01-16 | Centre gripping formula concrete damage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010045163.7A CN111141833A (en) | 2020-01-16 | 2020-01-16 | Centre gripping formula concrete damage detection device |
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| Publication Number | Publication Date |
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| CN111141833A true CN111141833A (en) | 2020-05-12 |
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| CN202010045163.7A Pending CN111141833A (en) | 2020-01-16 | 2020-01-16 | Centre gripping formula concrete damage detection device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110056010A (en) * | 2009-11-20 | 2011-05-26 | 한국과학기술원 | Nondestructive testing device of concrete structures for ultrasonic attenuation measurement |
| JP2012229982A (en) * | 2011-04-26 | 2012-11-22 | Toyo Constr Co Ltd | Method and apparatus for health monitoring of concrete structure |
| CN105445375A (en) * | 2015-12-31 | 2016-03-30 | 华南理工大学 | Handheld ultrasonic guided-wave structural damage detection device and detection method using same |
| CN205620356U (en) * | 2015-12-31 | 2016-10-05 | 华南理工大学 | Hand -held type supersound guided wave structure harms detection device |
| JP2018077183A (en) * | 2016-11-11 | 2018-05-17 | 日置電機株式会社 | Clamp sensor and measurement device |
| CN211553867U (en) * | 2020-01-16 | 2020-09-22 | 苏州丰华声赫智能科技有限公司 | Centre gripping formula concrete damage detection device |
-
2020
- 2020-01-16 CN CN202010045163.7A patent/CN111141833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110056010A (en) * | 2009-11-20 | 2011-05-26 | 한국과학기술원 | Nondestructive testing device of concrete structures for ultrasonic attenuation measurement |
| JP2012229982A (en) * | 2011-04-26 | 2012-11-22 | Toyo Constr Co Ltd | Method and apparatus for health monitoring of concrete structure |
| CN105445375A (en) * | 2015-12-31 | 2016-03-30 | 华南理工大学 | Handheld ultrasonic guided-wave structural damage detection device and detection method using same |
| CN205620356U (en) * | 2015-12-31 | 2016-10-05 | 华南理工大学 | Hand -held type supersound guided wave structure harms detection device |
| JP2018077183A (en) * | 2016-11-11 | 2018-05-17 | 日置電機株式会社 | Clamp sensor and measurement device |
| CN211553867U (en) * | 2020-01-16 | 2020-09-22 | 苏州丰华声赫智能科技有限公司 | Centre gripping formula concrete damage detection device |
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