A wall hollowing detection device for construction engineering quality detection

By designing a wall hollow detection device that includes a cylinder and a motor drive system, hollow areas are automatically marked and wall ash is collected, solving the problem of inconvenient marking and cleaning of wall ash in the existing technology, and improving detection efficiency and accuracy.

CN224594571UActive Publication Date: 2026-08-04BEIJING ZHONGWAN CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING ZHONGWAN CONSTR CO LTD
Filing Date
2025-08-07
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to quickly and accurately mark hollow areas in wall detection, and the wall dust generated by tapping is difficult to clean.

Method used

A wall hollow detection device was designed, comprising a device base, a lifting frame, a detection head, a hollow hammer, a marking pen, and a sound collector. The device automatically marks hollow areas using a cylinder and motor drive system, and collects wall ash through a guide plate and a ash collection box.

Benefits of technology

It enables rapid and accurate marking of hollow areas and convenient cleaning of wall plaster, improving detection efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224594571U_ABST
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Abstract

The utility model discloses a wall body empty drum detection device of constructional engineering quality detection, including device base, lift frame, detection machine head, empty drum hammer and marking pen, lift frame is fixed in the top of device base, and the detection machine head sets up one side at lift frame, and the inside installation of detection machine head has first air cylinder, and empty drum hammer installs the output of first air cylinder, and the outside of detection machine head is provided with the bushing, and the top of bushing is installed with second motor, and the output of second motor is installed with gear, and the outer wall of bushing position place fixed tooth ring, and the outer wall of bushing is installed with second air cylinder, and the output of second air cylinder is fixed with pen cover, and marking pen sets up inside pen cover. The utility model not only can automatic marking mark empty drum area, convenient operation, mark accurate, and is convenient for to the collection and cleaning of wall ash.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering quality testing technology, specifically a wall hollowing detection device for building engineering quality testing. Background Technology

[0002] Building construction quality inspection refers to the activities of testing the materials, components, equipment, and overall quality and functionality of a building project to determine its quality characteristics. Hollow wall detection is one of the common quality inspection items in building construction. The main purpose of knocking on the wall to detect hollow areas is to detect whether there are hollow areas in the wall. Hollow areas refer to the presence of air cavities inside the wall, resulting in a lack of firm bonding between the wall and the finishing layer. By knocking on the wall, different sounds can be heard, thus determining whether the wall is hollow.

[0003] Currently, the common method for detecting hollow walls is to tap the wall with a hollow hammer and listen to the sound feedback to determine whether there are hollow areas. However, after detecting hollow areas, it is inconvenient to quickly mark them, and subsequent manual marking cannot accurately mark the hollow areas. Moreover, the wall plaster produced by tapping the wall will fall to the ground and is inconvenient to clean up. Therefore, we propose a wall hollow detection device for building engineering quality inspection. Utility Model Content

[0004] The purpose of this utility model is to provide a wall hollow detection device for building engineering quality inspection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wall hollowing detection device for building engineering quality inspection, comprising a device base, a lifting frame, a detection head, a hollowing hammer, and a marking pen. The lifting frame is fixed above the device base, the detection head is disposed on one side of the lifting frame, and a first cylinder is installed inside the detection head. The hollowing hammer is installed at the output end of the first cylinder. A rotating sleeve is disposed outside the detection head, and a second motor is installed at the top of the rotating sleeve. A gear is installed at the output end of the second motor. A gear ring is fixed on the outer wall of the rotating sleeve at the gear position, and the gear ring meshes tightly with the gear. A second cylinder is installed on the outer wall of the rotating sleeve, and a pen sleeve is fixed at the output end of the second cylinder. The marking pen is disposed inside the pen sleeve and is tightly engaged with the pen sleeve. A sound collector is installed on the outer wall of the detection head below the hollowing hammer.

[0006] Preferably, a lead screw is installed inside the lifting frame, and guide rods are fixed on both sides of the lead screw. A first motor is installed at the top of the lifting frame, and the output end of the first motor is fixedly connected to the lead screw.

[0007] Preferably, a movable seat is fitted outside the lead screw and guide rod. The movable seat is threadedly connected to the lead screw and slidably connected to the guide rod. One end of the movable seat extends to the outside of the lifting frame and is fixedly connected to the testing head, which facilitates the adjustment of the height of the testing head.

[0008] Preferably, a pusher is fixed to one side of the top of the device base, and casters are installed at the corners of the bottom of the device base.

[0009] Preferably, a dust collection box is installed on one side of the top of the device base, and the dust collection box is equipped with a dust collection drawer inside, which facilitates the collection and cleaning of wall dust.

[0010] Preferably, a guide plate is fixed to one side of the top of the ash collection box to facilitate the introduction of wall ash into the ash collection drawer inside the ash collection box.

[0011] Preferably, the outer wall of the testing head is provided with balls, and the inner wall of the rotating sleeve at the position of the balls is provided with grooves, and one end of the balls extends into the inside of the grooves, so that the rotating sleeve rotates more smoothly.

[0012] Preferably, one end of the rotating sleeve extends into the inside of the ring on the outer wall of the testing head.

[0013] Compared with the prior art, the beneficial effects of this utility model are: When the sound matches the hollow area, the second cylinder drives the pen cap to move, so that the pen cap contacts the wall. The second motor drives the gear to rotate, and the gear drives the rotating sleeve to rotate through the gear ring. The rotating sleeve drives the marking pen to rotate, so that a circle can be drawn on the wall with the hollow hammer as the center point. This circular area is the hollow area. The device can automatically mark the hollow area, which is convenient to operate and accurate in marking. During the tapping test, the guide plate remains in close contact with the wall. The wall dust generated by the tapping falls onto the surface of the guide plate, which then guides the wall dust into the dust collection tray inside the dust collection box. The dust collection tray can be pulled out to clean the wall dust, thus facilitating the collection and cleaning of the wall dust. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is an enlarged schematic diagram of the detection head structure of this utility model; Figure 3 This is a front view structural diagram of the detection head of this utility model; Figure 4 This is an enlarged side sectional view of the lifting frame of this utility model. Figure 5 This is a top-view enlarged structural diagram of the ash collection box of this utility model.

[0015] In the diagram: 1. Device base; 2. Hand-push frame; 3. Lifting frame; 301. Lead screw; 302. Guide rod; 303. First motor; 304. Movable seat; 4. Detector head; 401. Ball bearing; 5. Ring sleeve; 6. Rotating sleeve; 601. Roller groove; 7. First cylinder; 8. Hollow hammer; 9. Ash collection box; 10. Universal wheel; 11. Second motor; 12. Gear; 13. Gear ring; 14. Second cylinder; 15. Pen cap; 16. Marking pen; 17. Sound collector; 18. Ash collection drawer; 19. Ash guide plate. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of this utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 The present invention provides an embodiment of a wall hollow detection device for building engineering quality inspection, comprising a device base 1, a lifting frame 3, a detection head 4, a hollow hammer 8, and a marking pen 16. The lifting frame 3 is fixed above the device base 1, the detection head 4 is set on one side of the lifting frame 3, and a first cylinder 7 is installed inside the detection head 4, and the hollow hammer 8 is installed at the output end of the first cylinder 7. Specifically, by operating an external controller, the first cylinder 7 drives the hollow hammer 8 to reciprocate. The hollow hammer 8 strikes the wall, and the sound collector 17 picks up the sound. The data comparator of the controller compares the picked-up sound data with the stored data to determine whether the wall has a hollow phenomenon. This method is more accurate than manual judgment. During this process, the first motor 303 drives the lead screw 301 to rotate, which causes the movable seat 304 to drive the detection head 4 to move up and down along the guide rod 302, and then pushes the device to move. This allows for knocking detection at different heights and positions on the wall, so as to knock detection on the entire wall. The outer side of the inspection head 4 is provided with a rotating sleeve 6, and a second motor 11 is installed at the top of the rotating sleeve 6. A gear 12 is installed at the output end of the second motor 11. A gear ring 13 is fixed on the outer wall of the rotating sleeve 6 at the position of the gear 12, and the gear ring 13 meshes tightly with the gear 12. A second cylinder 14 is installed on the outer wall of the rotating sleeve 6, and a pen sleeve 15 is fixed at the output end of the second cylinder 14. A marking pen 16 is located inside the pen sleeve 15, and the marking pen 16 is tightly engaged with the pen sleeve 15. Specifically, when the sound matches the hollow area, the second cylinder 14 drives the pen cap 15 to move, so that the pen cap 15 contacts the wall. The second motor 11 drives the gear 12 to rotate, and the gear 12 drives the rotating sleeve 6 to rotate through the gear ring 13. The rotating sleeve 6 drives the marking pen 16 to rotate, so that a circle can be drawn on the wall with the hollow hammer 8 as the center point. This circular area is the hollow area. The device can automatically mark the hollow area, which is convenient to operate and accurate in marking. A sound collector 17 is installed on the outer wall of the testing head 4 below the hollow hammer 8; The lifting frame 3 is equipped with a lead screw 301 inside, and guide rods 302 are fixed on both sides of the lead screw 301. The top of the lifting frame 3 is equipped with a first motor 303, and the output end of the first motor 303 is fixedly connected to the lead screw 301. The lead screw 301 and guide rod 302 are externally fitted with a movable seat 304. The movable seat 304 is threadedly connected to the lead screw 301 and slidably connected to the guide rod 302. One end of the movable seat 304 extends to the outside of the lifting frame 3 and is fixedly connected to the detection head 4. A pusher 2 is fixed to one side of the top of the device base 1, and casters 10 are installed at the corners of the bottom of the device base 1. A dust collection box 9 is installed on one side of the top of the device base 1, and a dust collection drawer 18 is provided inside the dust collection box 9. A guide plate 19 is fixed to one side of the top of the ash collection box 9; Specifically, during the tapping test, the guide plate 19 remains in close contact with the wall surface. The wall dust generated by the tapping falls onto the surface of the guide plate 19, and the guide plate 19 guides the wall dust into the dust collection tray 18 inside the dust collection box 9. The dust collection tray 18 can be pulled out to clean the wall dust, thus facilitating the collection and cleaning of the wall dust. The outer wall of the testing head 4 is provided with balls 401, and the inner wall of the rotating sleeve 6 at the position of the balls 401 is provided with a groove 601, and one end of the balls 401 extends into the inside of the groove 601. One end of the rotating sleeve 6 extends into the inside of the ring 5 on the outer wall of the testing head 4.

[0019] In this embodiment, the device is first pushed to the wall by the pusher 2, so that the guide plate 19 is in close contact with the wall. Then, the external controller drives the first cylinder 7 to reciprocate the hollow hammer 8, which strikes the wall. The sound collector 17 picks up the sound and compares the picked-up sound data with the stored data using the controller's data comparator to determine if the wall has a hollow sound. This method is more accurate than manual judgment. During this process, the first motor 303 drives the lead screw 301 to rotate, causing the movable seat 304 to move the detection head 4 up and down along the guide rod 302, thus pushing the device to move. This allows for striking detection at different heights and positions on the wall, enabling the entire wall surface to be tested. The device measures the sound. When a hollow sound is detected, the second cylinder 14 drives the pen cap 15 to move, causing the pen cap 15 to contact the wall. The second motor 11 drives the gear 12 to rotate, and the gear 12 drives the rotating sleeve 6 to rotate through the gear ring 13. The rotating sleeve 6 drives the marking pen 16 to rotate, thus drawing a circle on the wall with the hollow hammer 8 as the center point. This circular area is the hollow area. The device can automatically mark the hollow area, which is convenient to operate and accurate in marking. In addition, during the tapping test, the dust guide plate 19 is always in close contact with the wall. The wall dust generated by the tapping falls onto the surface of the dust guide plate 19. The dust guide plate 19 guides the wall dust into the dust collection tray 18 inside the dust collection box 9. The dust collection tray 18 can be pulled out to clean the wall dust, thus facilitating the collection and cleaning of wall dust.

[0020] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A wall hollow detection device for construction engineering quality detection, characterized in that, The device includes a base (1), a lifting frame (3), a testing head (4), a hollow hammer (8), and a marking pen (16). The lifting frame (3) is fixed above the base (1). The testing head (4) is located on one side of the lifting frame (3), and a first cylinder (7) is installed inside the testing head (4). The hollow hammer (8) is installed at the output end of the first cylinder (7). A rotating sleeve (6) is provided on the outside of the testing head (4), and a second motor (11) is installed at the top of the rotating sleeve (6). The second motor (11) A gear (12) is installed at the output end of the device. A gear ring (13) is fixed on the outer wall of the rotating sleeve (6) at the position of the gear (12). The gear ring (13) meshes tightly with the gear (12). A second cylinder (14) is installed on the outer wall of the rotating sleeve (6). A pen sleeve (15) is fixed at the output end of the second cylinder (14). The drawing pen (16) is set inside the pen sleeve (15). The drawing pen (16) is tightly engaged with the pen sleeve (15). A sound collector (17) is installed on the outer wall of the detection head (4) below the hollow hammer (8).

2. The wall hollow detection device for construction engineering quality detection according to claim 1, characterized in that: The lifting frame (3) is equipped with a lead screw (301) inside, and guide rods (302) are fixed on both sides of the lead screw (301). A first motor (303) is installed at the top of the lifting frame (3), and the output end of the first motor (303) is fixedly connected to the lead screw (301).

3. The wall hollow detection device for construction quality detection of claim 2, characterized in that: The lead screw (301) and guide rod (302) are fitted with a movable seat (304), which is threaded to the lead screw (301) and slidably connected to the guide rod (302). One end of the movable seat (304) extends to the outside of the lifting frame (3) and is fixedly connected to the testing head (4).

4. The wall hollow detection device for construction quality detection of claim 1, characterized in that: A pusher (2) is fixed on one side of the top of the device base (1), and casters (10) are installed at the corners of the bottom of the device base (1).

5. The wall hollow detection device for construction quality detection according to claim 1, characterized in that: A dust collection box (9) is installed on one side of the top of the device base (1), and a dust collection drawer (18) is provided inside the dust collection box (9).

6. The wall hollow detection device for construction quality detection of claim 5, characterized in that: A guide plate (19) is fixed to one side of the top of the ash collection box (9).

7. The wall hollow detection device for construction quality detection of claim 1, characterized in that: The outer wall of the testing head (4) is provided with ball bearings (401), and the inner wall of the rotating sleeve (6) at the position of the ball bearings (401) is provided with a groove (601), and one end of the ball bearings (401) extends into the inside of the groove (601).

8. The wall hollow detection device for construction quality detection of claim 1, characterized in that: One end of the rotating sleeve (6) extends into the inside of the ring sleeve (5) on the outer wall of the testing head (4).