CN210572133U - Wall surface fixing device of acoustic emission sensor - Google Patents
Wall surface fixing device of acoustic emission sensor Download PDFInfo
- Publication number
- CN210572133U CN210572133U CN201921151865.2U CN201921151865U CN210572133U CN 210572133 U CN210572133 U CN 210572133U CN 201921151865 U CN201921151865 U CN 201921151865U CN 210572133 U CN210572133 U CN 210572133U
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- acoustic emission
- thin
- emission sensor
- wall
- wall sleeve
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Abstract
The utility model discloses a wall surface fixing device of an acoustic emission sensor, which comprises a thin-wall sleeve, a top cover and a light spring; the end part of the thin-wall sleeve is provided with an external thread, and the top cover is fastened at one end of the thin-wall sleeve through the thread; an acoustic emission sensor is arranged in the thin-wall sleeve, and a light spring is used for supporting the acoustic emission sensor and the top cover; the other end of the thin-wall sleeve is installed on the wall surface through an expansion bolt; the acoustic emission sensor is fixed by a spring metal sheet arranged in the thin-wall sleeve; soundproof cotton is filled between the acoustic emission sensor and the thin-wall sleeve. The utility model provides a current sensor fixed insecure, dismouting complicated and outdoor environment under waterproof dustproof scheduling technical problem.
Description
Technical Field
The utility model relates to a building structure's nondestructive monitoring technology field, concretely relates to acoustic emission sensor wall fixing device for healthy real-time supervision of masonry structure building.
Background
At present, a large number of masonry structure building houses are still available in China, and due to the fact that the masonry structure is low in bearing capacity and poor in anti-seismic capacity, the masonry structure members are prone to being damaged by cracks and the like along with the increase of service life and the comprehensive influence of factors such as natural environment and the like. The occurrence of these damage phenomena not only has great potential safety hazard, but also causes great economic loss, so it is very important to evaluate the damage condition and life expectancy of masonry structure buildings.
Acoustic emission is used as a novel nondestructive testing means and is widely applied to the field of civil engineering. Above all, acoustic emission technology enables long-term real-time safety monitoring of structures, wherein the fixation of acoustic emission sensors is an important link. The conventional sensor fixing device mostly causes the sensor to slide and misplace because of infirm fixation, and is greatly influenced by natural environment such as rainwater and raised dust, and the acoustic emission collection influence factors are more, so that the sensor fixing device is not suitable for long-term real-time monitoring of a structural building.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an acoustic emission sensor wall fixing device for healthy real-time supervision of masonry structure has solved fixed insecure, the dismouting is complicated and technical problem such as waterproof dustproof under the outdoor environment of current sensor.
The utility model adopts the technical proposal that: a wall surface fixing device of an acoustic emission sensor comprises a thin-wall sleeve, a top cover and a light spring; the end part of the thin-wall sleeve is provided with an external thread, and the top cover is fastened at one end of the thin-wall sleeve through the thread; an acoustic emission sensor is arranged in the thin-wall sleeve, and a light spring is used for supporting the acoustic emission sensor and the top cover; the other end of the thin-wall sleeve is installed on the wall surface through an expansion bolt; the acoustic emission sensor is fixed by a spring metal sheet arranged in the thin-wall sleeve; soundproof cotton is filled between the acoustic emission sensor and the thin-wall sleeve.
Furthermore, the number of the spring metal sheets is four, and the interval between the adjacent spring metal sheets is 90 degrees.
Furthermore, a wire passing hole with the diameter of 3mm is formed in the thin-wall sleeve.
Furthermore, the light springs are welded on the top cover, and the light springs are three and distributed in an equilateral triangle shape and have higher rigidity.
Further, a rubber sheet is arranged between the light spring and the acoustic emission sensor.
The advantageous effects produced by the present invention will be explained in the detailed description section of this specification.
Drawings
FIG. 1 is a schematic view of the overall construction of the entire fixture;
FIG. 2 is a cross-sectional view of a thin-walled sleeve;
in the figure: the acoustic emission sensor comprises a thin-wall sleeve 1, an expansion bolt 2, a bent elastic metal sheet 3, an acoustic emission sensor 4, a wire passing hole 5, a circular elastic metal sheet 6, a rubber sheet 7, an external thread 8, a top cover 9, a light spring 10 and soundproof cotton 11.
Detailed Description
The invention will be further described and illustrated with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the wall surface fixing device of the acoustic emission sensor mainly comprises a thin-wall sleeve 1, a top cover 9 and a light spring 10, wherein one end of the thin-wall sleeve 1 is provided with an external thread 8, the diameter of the external thread is slightly smaller than that of the top cover 9, and the external thread is matched with the internal thread inside the top cover. The top cap inside weld have three be the same light spring 10 that equilateral triangle distributes, and light spring 10 has great rigidity. The light spring 10 having a certain rigidity can ensure that the spring can be compressed by restoring force when the sensor is fixed to a vertical wall surface, but the restoring force is not loosened due to deformation caused by self-weight. The other end of the thin-wall sleeve 1 is provided with a flange structure perpendicular to the wall of the barrel, the flange structure is provided with two expansion bolt holes, and the flange structure is fixed on the wall surface by means of expansion bolts 2. The thin-wall sleeve 1 is made of aluminum alloy materials, is light in weight and small in dead weight, is not easy to loosen or even fall off due to self factors after being fixed, is particularly suitable for fixing a sensor on a vertical wall surface, and the soundproof cotton 11 filled between the acoustic emission sensor 4 and the thin-wall sleeve 1 can play a role in shielding external noise interference during on-site real-time monitoring.
Four bent elastic metal sheets 3 which are uniformly and symmetrically arranged at intervals of 90 degrees are further arranged inside the thin-wall sleeve 1, and the four bent elastic metal sheets 3 have two functions:
1. prevent displacement such as the sensor because slippage, dislocation that self factor appears, guarantee that the mounted position of sensor 4 is accurate firm.
2. Effectively reduces and even shields the interference of external vibration to the signal acquisition of the sensor.
In addition, two round elastic metal sheets 6 and a round rubber sheet 7 are arranged in the thin-wall sleeve 1. The light spring 10 is in direct contact with the acoustic emission sensor 4, so that the sensor is stressed unevenly, the restoring force of the light spring 10 can be effectively adjusted and uniformly distributed to the surface of the acoustic emission sensor 4 by the aid of the elastic metal sheet 6 and the rubber sheet 7, influence of external vibration on the sensor is avoided, and the acoustic emission sensor is effectively prevented from slipping and displacing due to the elastic metal sheet 6.
A wire passing hole 5 with the diameter of about 3mm is drilled in the thin-wall sleeve 1, the diameter of the hole is slightly larger than that of the acoustic emission sensor cable, the cable can be ensured to pass through, and the cable at the position of the hole opening cannot shake back and forth to influence the acquisition of acoustic emission signals.
After the top cover 9 and the thin-wall sleeve 1 are screwed tightly, sealant is coated at the threaded connector and the wire through hole, and the sealant has the functions of preventing water and dust in the long-term use process of the sensor and avoiding the collection of external natural factors on acoustic emission signals.
When the method is implemented, the thin-wall sleeve 1 is fixed on a wall surface through the expansion bolt 2, then the round elastic metal sheet 6 and the rubber sheet 7 are installed, the top cover 9 is screwed, and sealant is coated at the threaded interface and the wire passing hole.
The utility model discloses in used specific individual example right the utility model discloses a principle and implementation have been elucidated, the description of above embodiment is only used for helping understanding the utility model discloses a method and core thought, simultaneously, to the general technical personnel in this field, according to the utility model discloses an idea all has the change part on concrete implementation and application scope, to sum up, this specification content should not be understood as right the utility model discloses a restriction.
Claims (5)
1. The utility model provides an acoustic emission sensor wall fixing device which characterized in that: comprises a thin-wall sleeve, a top cover and a light spring; the end part of the thin-wall sleeve is provided with an external thread, and the top cover is fastened at one end of the thin-wall sleeve through the thread; an acoustic emission sensor is arranged in the thin-wall sleeve, and a light spring is used for supporting the acoustic emission sensor and the top cover; the other end of the thin-wall sleeve is installed on the wall surface through an expansion bolt; the acoustic emission sensor is fixed by a spring metal sheet arranged in the thin-wall sleeve; soundproof cotton is filled between the acoustic emission sensor and the thin-wall sleeve.
2. The acoustic emission sensor wall fixture of claim 1, wherein: the spring metal sheets are four in number, and the interval between every two adjacent spring metal sheets is 90 degrees.
3. The acoustic emission sensor wall fixture of claim 1, wherein: and the thin-wall sleeve is provided with a wire passing hole with the diameter of 3 mm.
4. The acoustic emission sensor wall fixture of claim 1, wherein: the light springs are welded on the top cover, and the number of the light springs is three, distributed in an equilateral triangle shape and high in rigidity.
5. The acoustic emission sensor wall fixture of claim 1, wherein: and a rubber sheet is arranged between the light spring and the acoustic emission sensor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018218819406 | 2018-11-15 | ||
| CN201821881940 | 2018-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210572133U true CN210572133U (en) | 2020-05-19 |
Family
ID=70643284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921151865.2U Expired - Fee Related CN210572133U (en) | 2018-11-15 | 2019-07-22 | Wall surface fixing device of acoustic emission sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210572133U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735877A (en) * | 2020-07-24 | 2020-10-02 | 水利部水工金属结构质量检验测试中心 | Ultrasonic probe fixing device for on-line monitoring |
| CN112067702A (en) * | 2020-10-23 | 2020-12-11 | 河北建筑工程学院 | Acoustic emission sensor wall fixing device |
| CN112578026A (en) * | 2020-12-10 | 2021-03-30 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN112762290A (en) * | 2020-12-31 | 2021-05-07 | 哈尔滨工业大学 | L-shaped acoustic emission sensor array clamp and test method for detecting gas leakage |
-
2019
- 2019-07-22 CN CN201921151865.2U patent/CN210572133U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111735877A (en) * | 2020-07-24 | 2020-10-02 | 水利部水工金属结构质量检验测试中心 | Ultrasonic probe fixing device for on-line monitoring |
| CN112067702A (en) * | 2020-10-23 | 2020-12-11 | 河北建筑工程学院 | Acoustic emission sensor wall fixing device |
| CN112067702B (en) * | 2020-10-23 | 2023-11-24 | 河北建筑工程学院 | Wall surface fixing device of acoustic emission sensor |
| CN112578026A (en) * | 2020-12-10 | 2021-03-30 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN112578026B (en) * | 2020-12-10 | 2023-10-20 | 重庆电子工程职业学院 | Fixing device of acoustic emission sensor |
| CN112762290A (en) * | 2020-12-31 | 2021-05-07 | 哈尔滨工业大学 | L-shaped acoustic emission sensor array clamp and test method for detecting gas leakage |
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Legal Events
| 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: 20200519 Termination date: 20210722 |