A device for detecting hollow sound

Abstract

A kind of hollow detection device, including movable bottom plate and the knocking bar being arranged on bottom plate, one end of knocking bar is equipped with hollow ball head, the end side of bottom plate is equipped with vertical plate, one side of vertical plate is equipped with the elastic snap ring of rotation setting, knocking bar is slidably arranged in the inside of elastic snap ring, in the utility model, knocking bar is slidably arranged in elastic snap ring, staff pushes and knocks the bar and elastic snap ring opposite sliding, so as to make hollow ball head to the detection point and carry out knocking detection;Elastic snap ring is rotationally arranged, the ring mouth of elastic snap ring can be adjusted to face, so as to change the angle of knocking bar, so that it can be towards ground, roof and side wall, increase its detection range, meanwhile, elastic snap ring plays a supplementary limiting support role to knocking bar, staff need not hold knocking bar all the time, can alleviate the work intensity of staff to a certain extent, the setting of elastic snap ring, it is convenient to disassemble knocking bar, convenient later-stage transportation and preservation.

Description

Technical Field

[0001] This utility model relates to the field of building inspection technology, specifically to a hollow detection device. Background Technology

[0002] Hollow spots typically refer to the phenomenon where an object's surface (such as walls, floors, tiles, etc.) produces a hollow sound when tapped due to poor adhesion, the presence of air or other gaps between the surface and the substrate. Generally, upon completion of a building construction project, hollow spot checks are required on the walls, floors, and ceilings to prevent potential safety hazards later on.

[0003] In the prior art, the common hollow detection device is the hollow hammer, which consists of a rod and a hammer head. This device is easy to carry and use. However, it may not be able to detect hollow surfaces such as walls and ceilings that are high off the ground due to insufficient length. To address this, Chinese patent CN 222259253 U has been published, which discloses a hollow detector for real estate appraisal. The detector includes a base; casters at the bottom of the base; a striking rod at the top of the base; and an adjustment mechanism at the top of the base. The adjustment mechanism includes a U-shaped plate, an electric push rod, a connecting plate, a mounting base, a mounting rod, a limiting rod, and a column.

[0004] This device uses an electric actuator to move a connecting plate up and down. The connecting plate, through a column and mounting base, moves a striking rod up and down, allowing the device to detect ceilings at different heights, thus expanding the applicability of the hollow detector. However, this device can only detect ceilings and cannot detect floors or side walls, limiting its use considerably. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned technical problems by providing a hollow wall detection device that can detect walls at different locations with a wide detection range.

[0006] To address the shortcomings of the aforementioned technical problems, the present invention provides the following technical solution: a hollow detection device, comprising a movable base plate and a striking rod disposed on the base plate, one end of the striking rod being provided with a hollow ball head, a vertical plate being provided on the end side of the base plate, and a rotatably disposed elastic retaining ring being provided on one side of the vertical plate, the striking rod being slidably inserted inside the elastic retaining ring.

[0007] As a further optimization of the hollow detection device of this utility model, the outer side of the elastic retaining ring is provided with a rotating shaft that is rotatably connected to the side of the vertical plate.

[0008] As a further optimization of the hollow detection device of this utility model, a vertically rotating lead screw is provided on one side of the vertical plate, and a non-rotatable rack is screwed on the lead screw. A gear is sleeved on the rotating shaft, and the gear meshes with the rack.

[0009] As a further optimization of the hollow drum detection device of this utility model, the striking rod and the hollow drum ball head are connected by an electric push rod.

[0010] As a further optimization of the hollow detection device of this utility model, the striking rod is composed of a threaded sleeve part and a screw part with one end screwed onto the threaded sleeve part, and an electric push rod is set at the end of the screw part facing away from the threaded sleeve part.

[0011] This invention has the following advantages: In this invention, the striking rod slides through the elastic retaining ring. The operator pushes the striking rod to slide relative to the elastic retaining ring, thereby enabling the hollow ball head to strike the detection point. The elastic retaining ring is rotatable, allowing adjustment of the ring opening's orientation, thus changing the angle of the striking rod to face the ground, roof, or side wall, increasing its detection range. Simultaneously, the elastic retaining ring provides auxiliary limiting support for the striking rod, eliminating the need for the operator to hold the striking rod continuously, reducing workload to some extent. The elastic retaining ring also facilitates disassembly of the striking rod, making subsequent transportation and storage convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Reference numerals: 1. Hollow ball head, 2. Electric push rod, 3. Striking rod, 301. Screw part, 302. Threaded sleeve part, 4. Elastic retaining ring, 5. Rotating shaft, 6. Vertical plate, 7. Base plate, 8. Gear, 9. Rack, 10. Lead screw. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] Example 1 like Figure 1 As shown, this utility model provides a hollow detection device, including a movable frame and a striking rod 3 with a hollow ball head 1 at one end. The striking rod 3 is movably mounted on the frame. The frame is movable, making it convenient to move the striking rod 3 along with it. The striking rod 3 is rotatable, allowing the testing personnel to control its movement and direct the hollow ball head 1 to strike the point to be tested.

[0015] In this embodiment, the movable frame is a base plate 7 with steering wheels at all four corners of the bottom. One end of the base plate 7 is provided with a vertical plate 6. One side of the vertical plate 6 is provided with an elastic retaining ring 4. The outer side of the elastic retaining ring 4 is provided with a rotating shaft 5 that rotates through the vertical plate 6. The striking rod 3 slides through the inside of the elastic retaining ring 4.

[0016] During the testing process, by controlling the striking rod 3 to align with the test point, the operator pushes the striking rod 3 to slide relative to the elastic retaining ring 4, thereby causing the hollow ball head 1 to strike the test point. The elastic retaining ring 4 is rotatable, which can adjust the orientation of the ring opening of the elastic retaining ring 4, thereby changing the angle of the striking rod 3 so that it can face the ground, the roof, and the side wall, increasing its testing range.

[0017] The elastic retaining ring 4 acts as an auxiliary limiting support for the striking rod 3, so that the staff does not need to hold the striking rod 3 all the time, which can reduce the workload of the staff to a certain extent. Moreover, the elastic retaining ring 4 can easily disassemble the striking rod 3, which is convenient for later transportation and storage.

[0018] The sliding engagement between the striking rod 3 and the elastic retaining ring 4 allows for easy adjustment of the relative height of the striking rod 3, enabling it to change its height position according to the actual space on site and improving its flexibility of use.

[0019] It is important to emphasize that there is friction between the rotating shaft 5 and the vertical plate 6 during rotation. Under normal conditions, the elastic retaining ring 4 will not rotate easily. There is also a certain amount of friction between the striking rod 3 and the elastic retaining ring 4. Under normal conditions, the striking rod 3 will not slide relative to the elastic retaining ring 4.

[0020] Example 2 like Figure 1 As shown, this embodiment provides a hollow detection device. This device shares most of the same structure as the detection device in Embodiment 1, except that the striking rod 3 consists of a threaded sleeve portion 302 and a screw portion 301 with one end screwed onto the threaded sleeve portion 302. A hollow ball head 1 is located at the end of the screw portion 301 facing away from the threaded sleeve portion 302. The threaded engagement between the threaded sleeve portion 302 and the screw portion 301 allows the length of the striking rod 3 to be changed, enabling it to be adjusted flexibly according to the actual space available on site, thus increasing its applicability.

[0021] Example 3 like Figure 2As shown, this embodiment provides a hollow detection device. This device shares most of the same structure as the detection device in Embodiment 1, except that a vertically rotating lead screw 10 is provided on one side of the vertical plate 6. A rack 9 is screwed onto the lead screw 10, and the rack 9 slides in contact with the vertical plate 6, preventing it from rotating during threaded movement with the lead screw 10. A gear 8 is fitted onto the rotating shaft 5, and the gear 8 meshes with the rack 9. The threaded movement of the lead screw 10 and rack 9 controls the movement of the rack 9, thereby controlling the rotation angle of the rotating shaft 5 and preventing the shaft 5 from rotating during detection, which would affect the accuracy of the detection position.

[0022] Example 4 like Figure 1 As shown, this embodiment provides a hollow detection device. This device shares most of the same structure as the detection device in Embodiment 1, except that the screw section 301 and the hollow ball head 1 are connected by an electric push rod 2. The electric push rod 2 can push the hollow ball head 1 to move, thereby allowing the hollow ball head 1 to automatically tap the detection point, further reducing the workload of the workers.

[0023] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

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