A wall surface hollowing detection hammer

Abstract

This application relates to the field of building quality testing technology and discloses a wall hollow detection hammer. The top of the frame has a groove, and the inner wall of the groove is provided with a lead screw via a rotating shaft. The surface of the lead screw is threadedly connected to a threaded block. The top of the threaded block is movably connected to a sliding frame via a hinge. An electric push rod is provided on the inner wall of the sliding frame. A connecting plate is slidably connected inside the sliding frame. The other end of the electric push rod is fixedly connected to the bottom of the connecting plate. A second drive motor drives a turntable and a movable rod to drive the hammer to repeatedly strike the wall surface, eliminating the need for manual point-by-point hammer testing. The lead screw is driven to rotate by a first drive motor, causing the threaded block to move left and right. Combined with the operation of the electric push rod, the extension length of the connecting plate can be adjusted, allowing the hammer to be adjusted in the vertical and horizontal directions. Continuous striking detection is possible, and the striking force is recorded in real time by a force sensor.

Description

Technical Field

[0001] This application relates to the field of building quality testing technology, specifically a wall hollow detection hammer. Background Technology

[0002] In building decoration projects, hollow spots in wall plaster and tile layers are key hidden dangers affecting construction quality. They not only reduce the aesthetics of the finish but may also cause safety issues such as tile detachment and plaster cracking. Currently, the detection of hollow spots in walls mainly relies on the traditional manual tapping method. Inspectors tap the wall with a metal rod or rubber hammer and rely on sound feedback to determine the hollow area. Although this method is simple to operate, it has significant drawbacks. The test results are highly dependent on the experience of the personnel, which can easily lead to errors in judgment. Different inspectors have different judgment standards, and manual point-by-point tapping is inefficient.

[0003] To address the limitations of manual inspection, some companies have attempted to introduce automated inspection technologies such as infrared thermal imaging and ultrasound. However, infrared thermal imaging equipment has a high unit cost and its detection accuracy is significantly affected by ambient temperature. Although ultrasonic detectors can detect at greater depths, they require the application of coupling agent and data processing for a single measurement point is time-consuming. They are also complex to operate and have poor equipment portability.

[0004] To address the aforementioned issues, this application proposes a wall hollowness detection device that can replace manual tapping, automate the detection process, and flexibly adjust the tapping position and height, thereby solving the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a wall hollow detection hammer, which has the advantages of easy adjustment and can replace manual labor, solving the problems of low efficiency and lack of flexibility of manual tapping.

[0006] To achieve the above objectives, this application provides the following technical solution: a wall hollow detection hammer, comprising a frame, a groove on the top of the frame, a lead screw mounted on the inner wall of the groove via a rotating shaft, a threaded block threaded to the surface of the lead screw, a sliding frame movably connected to the top of the threaded block via a hinge, an electric push rod mounted on the inner wall of the sliding frame, a connecting plate slidably connected within the sliding frame, the other end of the electric push rod fixedly connected to the bottom of the connecting plate, a first drive motor mounted on one side of the frame, the other end of the output shaft of the first drive motor fixedly connected to the shaft end of the lead screw via a rotating shaft, and the top of the connecting plate... The part is provided with an extension plate, and a mounting plate is fixedly connected to one side of the extension plate. A second drive motor is provided at the bottom of the mounting plate. A turntable is provided at the other end of the output shaft of the second drive motor. A movable rod is movably connected to the surface of the turntable through a pin. A sliding plate is movably connected to the other end of the movable rod through a pin. A slot is opened on one side of the extension plate, and the sliding plate is slidably connected in the slot. A connecting rod is fixedly connected to the other side of the sliding plate. A hammer is threaded to one end of the connecting rod. A force sensor is provided at the connection between the connecting rod and the hammer. A speed sensor is provided on the surface of the connecting rod.

[0007] The above solution uses a second drive motor to drive a turntable and a movable rod to repeatedly strike the wall with a hammer, eliminating the need for manual point-by-point hammer inspection. The first drive motor drives a lead screw to rotate, causing the threaded block to move left and right. Combined with the operation of an electric push rod, the extension length of the connecting plate can be adjusted, allowing the hammer to be adjusted in both vertical and horizontal directions. Continuous striking detection is possible. A force sensor records the striking force in real time, and a speed sensor collects the striking speed, transmitting the signals to the control receiving panel to record hollow sounds, thus avoiding subjective errors caused by manual listening.

[0008] Furthermore, a sliding groove is provided on both sides of the inner wall of the groove, and a slider is slidably connected in the sliding groove. The slider is fixedly connected to one side of the threaded block.

[0009] The above solution, by creating a slide groove and utilizing the sliding action of the slider within the groove, enables the threaded block and slide frame to move more stably.

[0010] Furthermore, a fixing plate is provided on one side of the sliding frame near the bottom, and the fixing plate is fixedly installed on one side of the threaded block by studs.

[0011] The above solution involves setting a fixing plate, which can fix the sliding frame when it moves to a vertical position using studs and the fixing plate.

[0012] Furthermore, L-shaped plates are fixedly connected to the top of the frame near both sides, and the two L-shaped plates are adapted to the connecting plate.

[0013] The above solution uses L-shaped plates to facilitate the storage of the sliding frame. The sliding frame is horizontally locked into the two L-shaped plates, reducing the space occupied.

[0014] Furthermore, a handle is fixedly connected to one side of the frame, and an anti-slip sleeve is fixedly connected to the surface of the handle.

[0015] The above solution utilizes an anti-slip sleeve made of rubber to increase grip friction, making it easier for testing personnel to maintain stability when moving the device.

[0016] Furthermore, anti-slip pads, made of rubber, are fixedly connected to the bottom of the frame near the four corners.

[0017] The above solution increases the friction between the device and the ground, preventing the device from shifting due to impact or vibration during the testing process.

[0018] Furthermore, a control receiving panel is provided on the surface of the frame, and an indicator light is provided on the top of the extension plate. The control receiving panel is electrically connected to the force sensor, speed sensor, first drive motor, second drive motor, electric push rod, and indicator light.

[0019] The above scheme controls the receiving panel to process data from the force sensor and speed sensor in real time, and automatically determines the hollow state through a preset algorithm, replacing manual analysis. The indicator light displays the test results intuitively with different colors, and the receiving panel generates a test report with GPS positioning.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial effects: This wall hollow detection hammer uses a second drive motor to drive a turntable and a movable rod to repeatedly strike the wall surface with a hammer, eliminating the need for manual point-by-point hammer inspection. A first drive motor drives a lead screw to rotate, causing a threaded block to move left and right. Combined with an electric push rod, the extension length of the connecting plate can be adjusted, allowing for vertical and horizontal adjustment of the hammer. Continuous striking detection is possible. A force sensor records the striking force in real time, and a speed sensor collects the striking speed, transmitting the signals to a control receiving panel to record hollow areas, thus avoiding subjective errors caused by manual listening. Attached Figure Description

[0021] Figure 1 This is a frontal three-dimensional structural diagram of this application; Figure 2 This is a bottom-view three-dimensional structural diagram of this application; Figure 3 This is a schematic diagram of the three-dimensional test structure of this application; Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 1 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Frame; 2. Groove; 3. Slide; 4. Slider; 5. Lead screw; 6. Threaded block; 7. First drive motor; 8. Fixing plate; 9. Indicator light; 10. Electric push rod; 11. Sliding frame; 12. Slide plate; 13. Anti-slip mat; 14. L-shaped plate; 15. Control receiving panel; 16. Anti-slip sleeve; 17. Handle; 18. Extension plate; 19. Connecting plate; 20. Slot; 21. Movable rod; 22. Turntable; 23. Second drive motor; 24. Hammer; 25. Force sensor; 26. Connecting rod; 27. Speed ​​sensor; 28. Mounting plate. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1 , Figure 2 and Figure 5This embodiment of a wall hollow detection hammer includes a frame 1. A groove 2 is formed at the top of the frame 1. A lead screw 5 is mounted on the inner wall of the groove 2 via a rotating shaft. A threaded block 6 is threaded onto the surface of the lead screw 5. A sliding frame 11 is movably connected to the top of the threaded block 6 via a hinge. An electric push rod 10 is mounted on the inner wall of the sliding frame 11. A connecting plate 19 is slidably connected inside the sliding frame 11. The other end of the electric push rod 10 is fixedly connected to the bottom of the connecting plate 19. A first drive motor 7 is mounted on one side of the frame 1. The other end of the output shaft of the first drive motor 7 is fixedly connected to the shaft end of the lead screw 5 via a rotating shaft. An extension plate 18 is mounted on the top of the connecting plate 19. A mounting plate 28 is fixedly connected to one side of the extension plate 18. A second drive motor 23 is mounted at the bottom of the mounting plate 28. A turntable 22 is mounted on the other end of the output shaft of the second drive motor 23. A movable rod 21 is movably connected to the surface of the turntable 22 via a pin. A sliding plate 12 is movably connected to the other end of the movable rod 21 via a pin. A slot 20 is provided on one side of the plate 8, and the slide plate 12 is slidably connected in the slot 20. A connecting rod 26 is fixedly connected to the other side of the slide plate 12. A hammer 24 is threadedly connected to one end of the connecting rod 26. A force sensor 25 is provided at the connection between the connecting rod 26 and the hammer 24. A speed sensor 27 is provided on the surface of the connecting rod 26. The second drive motor 23 drives the turntable 22 and the movable rod 21 to drive the hammer 24 to repeatedly strike the wall, which can eliminate the need for manual point-by-point hammer testing. The first drive motor 7 drives the lead screw 5 to rotate, which drives the threaded block 6 to move left and right. Combined with the operation of the electric push rod 10, the extension length of the connecting plate 19 can be adjusted, and the hammer 24 can be adjusted in the vertical and horizontal directions. Continuous striking detection can be performed. The force sensor 25 records the striking force in real time, and the speed sensor 27 collects the striking speed. The signal is transmitted to the control receiving panel 15 to record the hollow sound, avoiding the subjective error caused by manual listening.

[0025] Please see Figure 1 and Figure 3 Both sides of the inner wall of the groove 2 are provided with sliding grooves 3, and sliders 4 are slidably connected in the sliding grooves 3. The sliders 4 are fixedly connected to one side of the threaded block 6. A fixing plate 8 is provided on one side of the sliding frame 11 near the bottom. The fixing plate 8 is fixedly installed on one side of the threaded block 6 by studs. L-shaped plates 14 are fixedly connected to the top of the frame 1 near both sides. The two L-shaped plates 14 are adapted to the connecting plate 19. By opening the sliding grooves 3, the sliding action of the sliders 4 in the sliding grooves 3 can make the movement of the threaded block 6 and the sliding frame 11 more stable. By setting the fixing plate 8, when the sliding frame 11 moves to the vertical state, the sliding frame 11 can be fixed by studs and fixing plate 8.

[0026] Please see Figure 2 , Figure 3 and Figure 5A handle 17 is fixedly connected to one side of the frame 1, and an anti-slip sleeve 16 is fixedly connected to the surface of the handle 17. Anti-slip pads 13, made of rubber, are fixedly connected to the bottom of the frame 1 near the four corners. A control receiving panel 15 is set on the surface of the frame 1, and an indicator light 9 is set on the top of the extension plate 18. The control receiving panel 15 is electrically connected to the force sensor 25, the speed sensor 27, the first drive motor 7, the second drive motor 23, the electric push rod 10, and the indicator light 9. The anti-slip sleeve 16, made of rubber, increases the grip friction, making it easier for the tester to maintain stability when moving the device. The anti-slip pads 13 increase the friction between the device and the ground, preventing the device from shifting due to knocking and vibration during the test. The control receiving panel 15 processes the data from the force sensor 25 and the speed sensor 27 in real time, and automatically determines the hollow state through a preset algorithm, replacing manual analysis. The indicator light 9 displays the test results intuitively with different colors, and generates a test report with GPS positioning in conjunction with the control receiving panel 15.

[0027] The working principle of the above embodiment is as follows: When in use, hold the handle 17 of the rubber anti-slip sleeve 16 on one side of the frame 1, place the detection hammer at a suitable detection position near the wall to be detected, and then fix the sliding frame 11 in a vertical state by the studs on the fixing plate 8. If it is necessary to adjust the height of the hammer 24, the electric push rod 10 can be activated through the control receiving panel 15 on the surface of the frame 1 to push the connecting plate 19 to extend and retract within the sliding frame 11, thereby moving the extension plate 18 and the mounting plate 28, so that the hammer 24 reaches the required height in the vertical direction. The second drive motor 23 is activated through the control receiving panel 15, and the motor drives the turntable 22 to rotate. The turntable 22 drives the slide plate 12 to slide back and forth in the slot 20 of the extension plate 18 through the movable rod 21, thereby causing the hammer 24 at the end of the connecting rod 26 to repeatedly strike the wall with a constant force. Then, on the control receiving panel 15... The first drive motor 7 is operated to drive the lead screw 5 to rotate, causing the threaded block 6 to move along the inner wall of the groove 2. While moving horizontally, it performs a tapping test. During the tapping process, the force sensor 25 at the connection between the connecting rod 26 and the tapping hammer 24 collects the tapping force data in real time, while the speed sensor 27 on the surface of the connecting rod 26 records the tapping speed simultaneously. The detection data is transmitted to the control receiving panel 15 in real time. The control receiving panel 15 has a built-in algorithm to automatically process and analyze the data, and displays the detection results intuitively through the indicator light 9 on the top of the extension plate 18. At the same time, the panel automatically generates a detection report with GPS positioning, which is convenient for subsequent data traceability and archiving. After the detection is completed, the sliding frame 11 can be flipped down along the hinge so that the sliding frame 11 is horizontally locked in the L-shaped plate on the top of the frame 1 to reduce the space occupied by the device and facilitate storage or movement.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall hollow detection hammer, comprising a frame (1), characterized in that: The top of the frame (1) is provided with a groove (2). A lead screw (5) is provided on the inner wall of the groove (2) via a rotating shaft. A threaded block (6) is threadedly connected to the surface of the lead screw (5). A sliding frame (11) is movably connected to the top of the threaded block (6) via a hinge. An electric push rod (10) is provided on the inner wall of the sliding frame (11). A connecting plate (19) is slidably connected inside the sliding frame (11). The other end of the electric push rod (10) is fixedly connected to the bottom of the connecting plate (19). A first drive motor (7) is provided on one side of the frame (1). The other end of the output shaft of the first drive motor (7) is fixedly connected to the shaft end of the lead screw (5) via a rotating shaft. An extension plate (18) is provided on the top of the connecting plate (19). A mounting plate is fixedly connected to one side of the extension plate (18). (28) A second drive motor (23) is provided at the bottom of the mounting plate (28). A turntable (22) is provided at the other end of the output shaft of the second drive motor (23). A movable rod (21) is movably connected to the surface of the turntable (22) by a pin. A sliding plate (12) is movably connected to the other end of the movable rod (21) by a pin. A slot (20) is provided on one side of the extension plate (18). The sliding plate (12) is slidably connected in the slot (20). A connecting rod (26) is fixedly connected to the other side of the sliding plate (12). A hammer (24) is threaded to one end of the connecting rod (26). A force sensor (25) is provided at the connection between the connecting rod (26) and the hammer (24). A speed sensor (27) is provided on the surface of the connecting rod (26).

2. The wall hollow detection hammer according to claim 1, characterized in that: The inner wall of the groove (2) is provided with sliding grooves (3) on both sides, and a slider (4) is slidably connected in the sliding groove (3). The slider (4) is fixedly connected to one side of the threaded block (6).

3. The wall hollow detection hammer according to claim 1, characterized in that: A fixing plate (8) is provided on one side of the slide frame (11) near the bottom. The fixing plate (8) is fixedly installed on one side of the threaded block (6) by studs.

4. A wall hollow detection hammer according to claim 1, characterized in that: The top of the frame (1) is fixedly connected to L-shaped plates (14) near both sides, and the two L-shaped plates (14) are adapted to the connecting plate (19).

5. A wall hollow detection hammer according to claim 1, characterized in that: A handle (17) is fixedly connected to one side of the frame (1), and an anti-slip sleeve (16) is fixedly connected to the surface of the handle (17).

6. A wall hollow detection hammer according to claim 1, characterized in that: Anti-slip pads (13) are fixedly connected to the bottom of the frame (1) near the four corners. The anti-slip pads (13) are made of rubber.

7. A wall hollow detection hammer according to claim 1, characterized in that: The surface of the frame (1) is provided with a control receiving panel (15), and the top of the extension plate (18) is provided with an indicator light (9). The control receiving panel (15) is electrically connected to the force sensor (25), the speed sensor (27), the first drive motor (7), the second drive motor (23), the electric push rod (10), and the indicator light (9).

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