Building wall hollowing detection device

Abstract

The utility model provides a building wall hollowing detection device, which is characterized in that an external sound pickup is arranged at the front part of a long rod, a loudspeaker electrically connected with the sound pickup is arranged at the rear end of a handle, and a switch and a battery are also arranged in the handle; a micro motor is arranged inside the tail end of the long rod, a hole groove is formed in the hammer head, the front end of the micro motor is located on the rear portion of the hole groove, a vertical groove perpendicular to the hole groove is formed in the rear portion of the hole groove, a hammer rod capable of moving up and down is installed in the vertical groove, the outer side of the hammer rod is sleeved with a spring, the lower end of the spring is fixed to the inner wall of the vertical groove, and the upper end of the spring is fixedly connected with the hammer rod. A crank is arranged on an output shaft of the micro motor, located over the hammer rod and capable of pushing the hammer rod to move downwards. According to the device, the hammer rod is arranged on the hammer head, the crank can be driven to rotate through the micro motor, the hammer rod is pushed to knock a wall surface, whether hollowing exists in the wall surface or not is detected in a space which is far away from the wall surface and inconvenient to knock, and knocking sound can be amplified through the loudspeaker.

Description

Technical Field

[0001] The utility model relates to the field of hollowing detection, in particular to a building wall hollowing detection device. Background Art

[0002] In the construction field, wall hollowing is a common quality problem that affects the appearance and structural safety of the building. If you want to lay tiles on the wall surface, you need to detect possible hollowing problems.

[0003] Most existing detection methods use a handheld hollowing hammer, which knocks on the wall with the hollowing hammer to determine whether there is a hollowness by the sound. However, in some places where the hollows are small or the distance is far, the knocking sound heard by people is relatively small, which can easily lead to misjudgment. In addition, on some narrow walls, the knocking force of the front end of the hollowing hammer will be greatly reduced, resulting in the feedback sound generated at the hollow place being too small, which will also affect the judgment of the results. Utility Model Content

[0004] The utility model is based on the above technical problems and proposes a building wall hollowing detection device.

[0005] A device for detecting hollow drums in building walls comprises: a long rod, a handle and a hammer head, wherein the rear end of the long rod is connected and fixed to the front end of the handle, the hammer head is installed at the front end of the long rod, an external microphone is also provided at the front part of the long rod, a loudspeaker electrically connected to the microphone is provided at the rear end of the handle, and a switch and a battery are also provided in the handle; a micro motor is provided inside the end of the long rod, a hole slot is provided on the hammer head, the front end of the micro motor is located at the rear part of the hole slot, a vertical slot perpendicular to the hole slot is provided at the rear part of the hole slot, a hammer rod that can move up and down is installed in the vertical slot, a spring is sleeved on the outer side of the hammer rod, the lower end of the spring is fixed to the inner wall of the vertical slot, the upper end of the spring is connected and fixed to the hammer rod, a crank is provided on the output shaft of the micro motor, the crank is located directly above the hammer rod and can push the hammer rod to move downward.

[0006] Preferably, the outer side of the handle is covered with frosted soft leather.

[0007] Preferably, a shock-absorbing pad is filled between the micro motor and the long rod.

[0008] Preferably, the long rod is a telescopic rod.

[0009] Beneficial effects: The device is provided with a hammer rod on the hammer head, which can drive the crank to rotate through a micro motor, pushing the hammer rod to knock on the wall. It can detect whether there is a hollow wall at a long distance or in a space that is inconvenient to hit, and the knocking sound will be amplified through a loud speaker, making it easier to judge. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The structure diagram of the utility model is shown;

[0011] Figure 2 A schematic diagram of the structure inside the hammer head is shown. DETAILED DESCRIPTION

[0012] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0013] like Figure 1~Figure 2 The hollowing detection device for building walls shown in the figure comprises: a long rod 1, a handle 2, and a hammer head 4. The hammer head 4 adopts a round ball head. The rear end of the long rod 1 is connected and fixed to the front end of the handle 2. The outer side of the handle 2 is covered with frosted soft leather 3. The long rod 1 can adopt a telescopic rod that can be extended and retracted. The hammer head 4 is installed at the front end of the long rod 1. An external pickup 5 is also provided at the front part of the long rod 1. A loudspeaker 6 electrically connected to the pickup 5 is provided at the rear end of the handle 2. A control switch 14 and a battery are also provided in the handle 2; a micro motor 12 is provided inside the end of the long rod 1, and a hole slot 8 is opened on the hammer head 4. The hole slot The part close to the outer side of 8 can be provided with an internal thread, and the rear end of the long rod 1 is provided with an external thread matching therewith, so that the hammer head 4 and the long rod 1 can be fixed in a threaded connection manner, the front end of the micro motor 12 is located at the rear of the hole slot 8, and the rear of the hole slot 8 is provided with a vertical slot 9 perpendicular to the hole slot 8, and the vertical slot 9 is installed with a hammer rod 7 that can move up and down, and the outer side of the hammer rod 7 is sleeved with a spring 10, the lower end of the spring 10 is fixed on the inner wall of the vertical slot 9, and the upper end of the spring 10 is connected and fixed to the hammer rod 7, and a crank 11 is provided on the output shaft of the micro motor 12, and the crank 11 is located directly above the hammer rod 7 and can push the hammer rod 7 to move downward.

[0014] When the crank 11 rotates rapidly, the long end of the crank 11 pushes the hammer rod 7 to move downward. When the long end of the crank 11 is out of contact with the hammer rod 7, the hammer rod 7 quickly retracts under the action of the spring 10, thus completing a single striking process. The starting switch 15 of the micro motor 12 is also set at the handle 2, so that it can be remotely controlled.

[0015] A shock-absorbing pad 13 is filled between the micro motor 12 and the long rod 1 to prevent a large interference signal from being generated when the micro motor 12 is started.

[0016] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A building wall hollowing detection device, characterized in that: include: A long rod, a handle, and a hammer head, wherein the rear end of the long rod is connected and fixed to the front end of the handle, the hammer head is installed at the front end of the long rod, an external pickup is also provided at the front part of the long rod, a loudspeaker electrically connected to the pickup is provided at the rear end of the handle, and a switch and a battery are also provided in the handle; a micro motor is provided inside the end of the long rod, a hole slot is provided on the hammer head, the front end of the micro motor is located at the rear part of the hole slot, a vertical slot perpendicular to the hole slot is provided at the rear part of the hole slot, a hammer rod that can move up and down is installed in the vertical slot, a spring is sleeved on the outer side of the hammer rod, the lower end of the spring is fixed to the inner wall of the vertical slot, the upper end of the spring is connected and fixed to the hammer rod, a crank is provided on the output shaft of the micro motor, the crank is located directly above the hammer rod and can push the hammer rod to move downward.

2. The building wall hollowing detection device according to claim 1, characterized in that: The outer side of the handle is covered with frosted soft leather.

3. The building wall hollowing detection device according to claim 1, characterized in that: A shock-absorbing pad is filled between the micro motor and the long rod.

4. The building wall hollowing detection device according to claim 1, characterized in that: The long rod is a telescopic rod.

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