Wall hollowing detection device
The wall hollow detection device, designed with a rotating shaft, partial gears, and racks, solves the problems of low detection efficiency and poor adaptability in existing technologies, achieving efficient multiple tapping and flexible adaptability of the device.
Patent Information
- Application Number
- CN202520072475.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing wall hollow detection devices are inefficient when inspecting large areas, cannot adapt to uneven walls, and take a long time to operate.
The design incorporates a rotating shaft, partial gears, and a rack and pinion to allow multiple striking heads to strike asynchronously. Combined with a retractable striking head and spring structure, it ensures effective contact between the striking head and the wall surface. The angle between the striking rod and the telescopic rod can be adjusted via a connecting assembly to adapt to different wall surfaces and reduce the device's size when stored.
It enables multiple tapping tests in a short period of time, improving testing efficiency, adapting to different wall shapes, and the device has a small storage volume.
Smart Images

Figure CN223784263U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building detection technical field especially relates to a wall surface hollowing detection device. BACKGROUND
[0002] Hollowing is caused by the air existing in the original masonry and mortar layer, and the "hollowing" in the housing quality generally refers to the hollowing phenomenon appearing between the decoration layer and the structure layer of the ground, wall surface and ceiling of the house due to the poor adhesion and combination, commonly known as "two layers of skin", using a hollowing hammer to hit the wall surface after plastering, listening to the sound, which is different from other parts, the clear or dull sound determines the range.
[0003] Through the search, the patent with the Chinese patent publication No. CN221725937U discloses a kind of building wall surface hollowing detection device, including mobile frame with roller, percussion block and drive connecting piece;Perfusion block is slidably installed on mobile frame along the direction perpendicular to wall surface;Drive connecting piece is arranged on mobile frame, and one end is connected with one of roller, and is movably connected with percussion block.
[0004] The patent sets mobile frame, percussion block and drive connecting piece, and connects drive connecting piece with percussion block and the roller of mobile frame respectively, so that when mobile frame moves, roller rotates, and then drive connecting piece can be controlled to control percussion block reciprocating and colliding with wall surface, so compared with the way of hitting by operating personnel using rubber hammer in prior art, efficiency can be effectively improved and labor intensity is reduced, but it can only carry out single hitting inspection hollowing position, if the area of inspection area is large, it is time-consuming and inefficient to operate. UTILITY MODEL CONTENT
[0005] The utility model aims at solving the shortcomings in prior art, and provides a kind of wall surface hollowing detection device.
[0006] To achieve the above object, the utility model adopts the following technical scheme:
[0007] A kind of wall surface hollowing detection device, including telescopic rod, the telescopic rod telescopic end is connected with shell by connecting assembly, the telescopic rod outer wall is provided with control panel, the shell top outer wall is slidably connected with multiple percussion rods, the shell inner wall is rotatably connected with rotating shaft, the rotating shaft outer wall is connected with multiple partial gears, the shell inner wall is provided with motor for driving rotating shaft rotation, the percussion rod outer wall is provided with rack, the rack is transmission engagement with partial gear, multiple the angle of partial gear is different, the percussion rod other end is connected with spring one.
[0008] As a further scheme of the utility model: the knocking rod top end is slidably connected with a knocking head, the knocking head bottom end is connected with spring two, and the spring two other end is connected with the knocking rod.
[0009] As a further scheme of the utility model: the shell inner wall is provided with an ink box, the shell outer wall is provided with multiple spray heads, and the spray heads are located on the one side of the knocking rod.
[0010] As a further scheme of the utility model: the ink box one side is provided with an ink pump, the multiple spray heads are connected with a same multi-way valve, the multi-way valve input end is in communication with the ink pump output end.
[0011] As a further scheme of the utility model: the connecting assembly includes a connecting block and a rotating shell, the connecting block is fixed to the shell outer wall, the rotating shell is rotatably fitted to the connecting block outer wall, the connecting block one side is slidably connected with a limiting rod, and the connecting block side wall is provided with multiple insertion holes in limiting cooperation with the limiting rod.
[0012] As a further scheme of the utility model: the limiting rod and the rotating shell are connected through a limiting spring, the rotating shell one side is connected with a connecting seat, the telescopic rod telescopic end is connected with a rotating plate, and the rotating plate and the connecting seat inner wall are rotatably connected.
[0013] As a further scheme of the utility model: the connecting seat one side is provided with an avoiding cylinder, the connecting seat other side is transversely slidably connected with a pulling rod, the rotating plate inner wall is provided with a limiting groove, the pulling rod one end is connected with a limiting block, and the limiting block and the limiting groove are slidably limiting cooperation.
[0014] As a further scheme of the utility model: the avoiding cylinder and the limiting block are in alignment, the limiting block one end is connected with spring three, and the spring three other end is connected with the avoiding cylinder.
[0015] Compared with the prior art, the utility model provides a wall hollowing detection device, has the following beneficial effects:
[0016] 1. The utility model discloses a rotating shaft, partial gear and rack are set up, because multiple partial gear angles are different, multiple partial gear and rack meshing time are different, make multiple knocking head knock out of step, can carry out multiple knock detection in short time, improve knock detection efficiency.
[0017] 2. The utility model discloses a knocking head and spring two are set up, because wall hollowing or construction reason can lead to wall uneven, if support wheel removes in the process and passes through hollowing place, the shell will be far from the wall, at this time, spring two pushes the knocking head and extends, makes the combination length of knocking head and knocking rod extend, guarantees that the knocking head can be in effective contact with the wall.
[0018] 3. This utility model, by providing a connecting component, allows the relative angle between the striking rod and the telescopic rod to be changed as needed, enabling the striking rod to adapt to different wall surfaces during use. At the same time, the telescopic rod can be rotated to an angle parallel to the housing when stored, reducing the overall size of the device.
[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a wall hollow detection device proposed in this utility model;
[0021] Figure 2 This is a schematic diagram of the internal structure of a wall hollow detection device proposed in this utility model;
[0022] Figure 3 This is a cross-sectional structural diagram of a wall hollow detection device proposed in this utility model;
[0023] Figure 4 This is a partially enlarged view of the connecting assembly of a wall hollow detection device proposed in this utility model;
[0024] Figure 5 This is a schematic diagram of the connecting assembly of a wall hollow detection device proposed in this utility model.
[0025] In the diagram: 1. Telescopic rod; 2. Connecting assembly; 3. Housing; 4. Support wheel; 5. Striking rod; 6. Ink cartridge; 7. Printhead; 8. Multi-way valve; 9. Ink pump; 10. Spring 1; 11. Rotating shaft; 12. Partial gear; 13. Rack; 14. Striking head; 15. Spring 2; 16. Rotating plate; 17. Connecting seat; 18. Connecting block; 19. Rotating shell; 20. Limiting rod; 21. Clearance cylinder; 22. Pulling rod; 23. Spring 3; 24. Limiting groove; 25. Limiting block. Detailed Implementation
[0026] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] In the description of the utility model, need understanding is, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the indicated device or element must have a particular orientation, with a particular orientation structure and operation, therefore cannot be understood as the limitation of the utility model.
[0028] Embodiment 1
[0029] A wall hollowing detection device, as shown in Figures 1 to 3 The utility model discloses a wall hollowing detection device, as shown in formula (1), including telescopic link 1, and the telescopic link 1 telescopic end is connected with the casing 3 through the connecting assembly 2, the telescopic link 1 outer wall sets up control panel, the casing 3 top outer wall slidingly connected with a plurality of knock stick 5, the casing 3 inner wall rotationally connected with rotating shaft 11, the rotating shaft 11 outer wall is connected with a plurality of partial gear 12, the casing 3 inner wall is provided with motor that drives rotating shaft 11 rotation, the knock stick 5 outer wall is provided with rack 13, and the rack 13 is driven and engages with partial gear 12, and a plurality of partial gear 12 is different in angle, and the knock stick 5 top end slidingly connected with knock head 14, and the knock stick 5 another end is connected with spring one 10, and the spring one 10 another end is connected with casing 3, and the knock head 14 bottom end is connected with spring two 15, and the spring two 15 another end is connected with knock stick 5, and the casing 3 inner wall is provided with ink cartridge 6, and the casing 3 outer wall is provided with a plurality of spray head 7, and the spray head 7 is located knock stick 5 side, and the ink cartridge 6 one side is provided with ink pump 9, and a plurality of spray head 7 is connected with same multiway valve 8, and the input end of multiway valve 8 communicates with the output end of ink pump 9.
[0030] When detecting, the supporting wheel 4 is in contact with the wall surface, the knocking head 14 is extruded to retract a certain distance in the knocking rod 5, the telescopic rod 1 is driven to move the shell 3, the motor drives the rotating shaft 11 to rotate, the partial gear 12 is driven to rotate, the partial gear 12 is meshed with the rack 13 after rotating a certain angle, the knocking rod 5 is driven to move to one side, the spring one 10 is compressed and deformed, when the partial gear 12 is not meshed with the rack 13, the spring one 10 drives the knocking rod 5 to reset, the knocking head 14 knocks the wall, when the hollowing is found, the multi-way valve 8 controls the ink pump 9 to be communicated with the nozzle 7 corresponding to the hollowing position, the ink pump 9 outputs the ink in the ink box 6 to the nozzle 7 to mark, if the wall surface is not flat due to the hollowing or construction, when the supporting wheel 4 moves through the hollowing position, the shell 3 is away from the wall surface, the spring two 15 pushes the knocking head 14 to extend, the length of the combination of the knocking head 14 and the knocking rod 5 is extended, and the knocking head 14 can be effectively contacted with the wall surface, because the angles of the plurality of partial gears 12 are different, the plurality of partial gears 12 are meshed with the rack 13 at different times, the knocking of the plurality of knocking heads 14 is asynchronous, the plurality of knocking detection can be performed in a short time, and the knocking detection efficiency is improved.
[0031] Because the angles of the plurality of partial gears 12 are different, the plurality of partial gears 12 are meshed with the rack 13 at different times, the knocking of the plurality of knocking heads 14 is asynchronous, the plurality of knocking detection can be performed in a short time, and the knocking detection efficiency is improved.
[0032] If the wall surface is not flat due to the hollowing or construction, when the supporting wheel 4 moves through the hollowing position, the shell 3 is away from the wall surface, the spring two 15 pushes the knocking head 14 to extend, the length of the combination of the knocking head 14 and the knocking rod 5 is extended, and the knocking head 14 can be effectively contacted with the wall surface.
[0033] Embodiment 2
[0034] A wall surface hollowing detection device, the embodiment is based on the embodiment 1, and the following improvements are made, such as Figure 4 、 Figure 5As shown, the connecting assembly 2 comprises a connecting block 18 fixed to the outer wall of the shell 3 and a rotating shell 19 rotatably fitted to the outer wall of the connecting block 18. The connecting block 18 is slidably connected to a limiting rod 20 on one side. A plurality of insertion holes are formed in the side wall of the connecting block 18 and are in limiting cooperation with the limiting rod 20. The limiting rod 20 is connected to the rotating shell 19 through a limiting spring. The rotating shell 19 is connected to a connecting seat 17 on one side. The telescopic rod 1 is connected to a rotating plate 16 at the telescopic end. The rotating plate 16 is rotatably connected to the inner wall of the connecting seat 17. The connecting seat 17 is provided with an avoiding cylinder 21 on one side. The connecting seat 17 is slidably connected to a pulling rod 22 on the other side. A limiting groove 24 is formed in the inner wall of the rotating plate 16. The pulling rod 22 is connected to a limiting block 25 at one end. The limiting block 25 is in sliding limiting cooperation with the limiting groove 24. The avoiding cylinder 21 is aligned with the limiting block 25. The limiting block 25 is connected to a spring 23 at one end. The other end of the spring 23 is connected to the avoiding cylinder 21.
[0035] In use, when the top wall surface or other angle is inconvenient to detect, the pulling rod 22 can be pressed to push the limiting block 25 to move to the avoiding cylinder 21, and the spring 23 is compressed and deformed. The limiting block 25 enters the avoiding cylinder 21. At this time, the rotating plate 16 can be arbitrarily rotated relative to the connecting seat 17 to change the relative angle of the knocking rod 5 and the telescopic rod 1. After adjustment, the pulling rod 22 is released, the spring 23 pushes the limiting block 25 to reset, and the limiting block 25 enters the limiting groove 24 to limit the rotating plate 16. When storing, the limiting rod 20 can be pulled outwards, the limiting spring is stretched and deformed, the rotating shell 19 is rotated relative to the connecting block 18 by 90 degrees, and the telescopic rod 1 can be rotated to be parallel to the shell 3 to reduce the overall volume of the device.
[0036] By setting the connecting assembly 2, the relative angle of the knocking rod 5 and the telescopic rod 1 can be changed as needed, so that the knocking rod 5 can adapt to different wall surfaces in use. At the same time, the telescopic rod 1 can be rotated to be parallel to the shell 3 in storage to reduce the overall volume of the device.
[0037] Working principle: when detecting, the supporting wheel 4 is in contact with the wall surface, the knocking head 14 is extruded to retract a certain distance in the knocking rod 5, the telescopic rod 1 is driven to move the shell 3, the motor drives the rotating shaft 11 to rotate, the partial gear 12 is driven to rotate, the partial gear 12 is meshed with the rack 13 after rotating a certain angle, the knocking rod 5 is driven to move to one side, the spring one 10 is compressed and deformed, when the partial gear 12 is not meshed with the rack 13, the spring one 10 drives the knocking rod 5 to reset, the knocking head 14 knocks the wall, when the hollow drum is found, the multi-way valve 8 controls the ink pump 9 to communicate with the nozzle 7 corresponding to the hollow drum position, the ink pump 9 outputs the ink in the ink box 6 to the nozzle 7 to mark, due to the wall hollow drum or construction reasons, the wall surface is uneven, if the supporting wheel 4 moves through the hollow drum position, the shell 3 is away from the wall surface, at this time, the spring two 15 pushes the knocking head 14 to extend, the length of the combination of the knocking head 14 and the knocking rod 5 is extended, so that the knocking head 14 can effectively contact the wall surface, due to the different angles of the plurality of partial gears 12, the plurality of partial gears 12 are meshed with the rack 13 at different times, so that the knocking of the plurality of knocking heads 14 is not synchronized, the knocking detection efficiency can be improved in a short time; when in use, the top wall surface or other angle wall surface which is inconvenient to detect can be pressed, the pulling rod 22 is pulled, the limiting block 25 is pushed to move to the avoiding cylinder 21, the spring three 23 is compressed and deformed, the limiting block 25 enters the avoiding cylinder 21, at this time, the rotating plate 16 can be relatively rotated with the connecting seat 17, the relative angle of the knocking rod 5 and the telescopic rod 1 is changed, after adjustment, the pulling rod 22 is released, the spring three 23 pushes the limiting block 25 to reset, the limiting block 25 enters the limiting groove 24 to limit the rotating plate 16; when storing, the limiting rod 20 can be pulled out, the limiting spring is stretched and deformed, the shell 19 is relatively rotated with the connecting block 18 by 90 degrees, so that the telescopic rod 1 can be rotated to be parallel to the shell 3, the volume of the device is reduced.
[0038] The above merely describes a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A wall hollow detection device, comprising a telescopic rod (1), characterized in that, The telescopic rod (1) is connected to the housing (3) via a connecting component (2) at its telescopic end. The telescopic rod (1) has a control panel on its outer wall. Multiple striking rods (5) are slidably connected to the top outer wall of the housing (3). A rotating shaft (11) is rotatably connected to the inner wall of the housing (3). Multiple partial gears (12) are connected to the outer wall of the rotating shaft (11). A motor that drives the rotating shaft (11) to rotate is provided on the inner wall of the housing (3). A rack (13) is provided on the outer wall of the striking rod (5). The rack (13) meshes with the partial gears (12). The multiple partial gears (12) have different angles. A spring (10) is connected to the other end of the striking rod (5).
2. The wall hollow detection device according to claim 1, characterized in that, The top of the striking rod (5) is slidably connected to a striking head (14), and the bottom of the striking head (14) is connected to a second spring (15). The other end of the second spring (15) is connected to the striking rod (5).
3. The wall hollow detection device according to claim 1, characterized in that, The inner wall of the housing (3) is provided with an ink cartridge (6), and the outer wall of the housing (3) is provided with a plurality of printheads (7), the printheads (7) being located on one side of the striking rod (5).
4. The wall hollow detection device according to claim 3, characterized in that, An ink pump (9) is provided on one side of the ink cartridge (6), and multiple printheads (7) are connected to the same multi-way valve (8). The input end of the multi-way valve (8) is connected to the output end of the ink pump (9).
5. A wall hollow detection device according to claim 1, characterized in that, The connecting assembly (2) includes a connecting block (18) and a rotating shell (19). The connecting block (18) is fixed to the outer wall of the shell (3). The rotating shell (19) is rotatably fitted to the outer wall of the connecting block (18). A limiting rod (20) is slidably connected to one side of the connecting block (18). The side wall of the connecting block (18) is provided with a plurality of insertion holes that are limited and fitted to the limiting rod (20).
6. A wall hollow detection device according to claim 5, characterized in that, The limiting rod (20) is connected to the rotating shell (19) by a limiting spring. A connecting seat (17) is connected to one side of the rotating shell (19). A rotating plate (16) is connected to the telescopic end of the telescopic rod (1). The rotating plate (16) is rotatably connected to the inner wall of the connecting seat (17).
7. A wall hollow detection device according to claim 6, characterized in that, A clearance cylinder (21) is provided on one side of the connecting seat (17), and a pull rod (22) is slidably connected to the other side of the connecting seat (17). A limiting groove (24) is opened on the inner wall of the rotating plate (16). One end of the pull rod (22) is connected to a limiting block (25), and the limiting block (25) and the limiting groove (24) are slidably limited.
8. A wall hollow detection device according to claim 7, characterized in that, The clearance cylinder (21) is aligned with the limiting block (25). One end of the limiting block (25) is connected to a spring three (23), and the other end of the spring three (23) is connected to the clearance cylinder (21).
Citation Information
Patent Citations
Building wall hollowing detection device
CN221725937U