A wall percussion sound wave detection device

A technology of a sound wave detection device and a tapping rod, which is applied to measurement devices, analysis of solids using sonic/ultrasonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves, etc., can solve problems such as small application range and low efficiency

Active Publication Date: 2021-05-11
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese patent CN207472834U discloses a hollow drum detection hammer, but this manual detection method is inefficient, has a small scope of application and relies on the experience of engineers
In order to overcome the shortcomings of manual percussion detection, the present invention designs an efficient and reliable wall percussion sound wave detection device

Method used

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  • A wall percussion sound wave detection device
  • A wall percussion sound wave detection device
  • A wall percussion sound wave detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A wall percussion sound wave detection device, such as figure 1 As shown, it includes a vehicle body 1, a knocking unit 2, a sensor unit 3 and a controller (not shown), wherein: the vehicle body 1 is used to move on the wall; The driving assembly, the elastic action assembly and the knocking block, the driving assembly acts on the elastic action assembly by rotating, driving the elastic action assembly to move, so that the knocking block hits the wall once in a working cycle and bounces up; the sensor unit 3 Set on the body 1, including the acoustic sensor and the sensor lifting assembly, the sensor lifting assembly drives the acoustic wave sensor down to fit the wall before the knocking block hits the wall, and drives the acoustic wave sensor to reset after the knocking is completed; the controller uses It is used to control the action of the tapping unit and the sensor unit.

[0049] In this example, if Figure 4 As shown, the vehicle body 1 is used to support the v...

Embodiment 2

[0059] Such as Figure 10 with Figure 12 As shown, the wall knocking sound wave detection device of this embodiment includes a vehicle body 1, a knocking unit 4, a sensor unit 3 and an electronic control module.

[0060] The vehicle body 1 , the knocking unit 4 , the sensor unit 3 and the electronic control module of this embodiment are basically the same as those of the first embodiment. the difference lies in:

[0061] In this embodiment, the driving assembly includes a right-angle motor 4032 and a dial lever mechanism. The dial lever mechanism is composed of a dial A4035 connected to the rotating shaft of the right-angle motor 4032 and a plurality of wheels evenly distributed along the circumference of the dial A4035. Composed of four driving rods 4038 (the present embodiment is four driving rods 4038, and the central angle corresponding to two adjacent driving rods 4038 is 90°)

[0062] In this embodiment, the tapping block is tapping block B4016.

[0063] In this emb...

Embodiment 3

[0071] Such as Figure 16 As shown, the wall knocking sound wave detection device of this embodiment includes a vehicle body 1, a knocking unit 5, a sensor unit 3 and an electronic control module.

[0072] The vehicle body 1 , the knocking unit 5 , the sensor unit 3 and the electronic control module of this embodiment are basically the same as those of the first embodiment. the difference lies in:

[0073] In this embodiment, the drive assembly includes a dial right-angle motor A503 and a dial shift mechanism. The dial shift mechanism is composed of a dial B502 connected to the rotating shaft of the dial right-angle motor A503 and multiple wheels evenly distributed along the circumference of the dial B502. A shifting block A501 is formed (the present embodiment is 4 shifting blocks A501, and the central angle corresponding to two adjacent shifting blocks A501 is 90°).

[0074] The tapping block in this embodiment is the tapping block C507.

[0075] The elastic action assemb...

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PUM

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Abstract

The invention relates to a wall knocking sound wave detection device, which includes a vehicle body, a knocking unit, a sensor unit and a controller, wherein: the knocking unit is arranged on the vehicle body, and includes a drive assembly, an elastic action assembly and a knocking unit sequentially connected by transmission. block, the driving component acts on the elastic action component through rotation, and drives the elastic action component to move, so that the knocking block hits the wall once in a working cycle and bounces up. The sensor unit is arranged on the vehicle body, including the acoustic wave sensor and the sensor The lifting component, the sensor lifting component drives the acoustic wave sensor to drop to fit the wall before the knocking block hits the wall, and drives the acoustic wave sensor to reset after the knocking is completed. Compared with the prior art, the present invention uses a motor to drive the elastic action assembly to move, and drives the knocking block to knock on the wall, each time the knocking force is constant and adjustable, and the sound wave is collected and detected by the sound wave sensor close to the wall, so that The detection is reliable and accurate.

Description

technical field [0001] The invention relates to the field of wall surface detection, in particular to a wall surface knocking sound wave detection device. Background technique [0002] The hollowing of building exterior walls is a common problem, and how to detect the hollowing of existing building exterior walls has attracted more and more attention. On the basis of in-depth analysis of the traditional knocking detection method, experiments were carried out under different exterior wall finishes and various working conditions. The results show that the hollowing of the wall can be judged by the vibration characteristics of the wall knocking sound. The exterior walls of buildings are often protected by veneering bricks, mosaics or plastering, which also has an aesthetic effect. However, due to factors such as unqualified materials, improper construction techniques or unqualified construction quality in construction projects, and natural aging during normal use, hollowing of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04G01N29/22
CPCG01N29/045G01N29/22
Inventor 周爱国杨思静刘备
Owner TONGJI UNIV
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