CN219758153U - Building wall hollowing detection device - Google Patents

Abstract

The utility model relates to the technical field of building wall surface detection, and particularly discloses a building wall surface hollowing detection device; the device comprises a base, a lifting mechanism, a top plate and a detection mechanism, wherein the lifting mechanism comprises a lifting hydraulic cylinder, four lifting rods and four lifting cylinders, the detection mechanism comprises a detection box, an impact block, a moving rod, two moving plates, a telescopic plate and two telescopic units, and the telescopic units comprise sliding rods and telescopic springs; the utility model solves the problem that in the prior art, a hollowing detection device for a building wall surface is inconvenient to hollowing detection on detection points of different heights of the wall surface.

Description

Building wall hollowing detection device

Technical Field

The utility model relates to the technical field of building wall surface detection, and particularly discloses a building wall surface hollowing detection device.

Background

The building wall surface hollowing is caused by the existence of air in the original masonry and the putty layer, when the building wall surface hollowing is detected, a hollowing hammer or a hard object is used for tapping the plastering layer and the leveling layer to make clattering and clattering sounds as hollows, and the hollowing in the house quality generally refers to hollowing phenomena caused by infirm adhesion and combination between the floor, wall surface and ceiling decoration layer (plastering or sticking face bricks) and the structural layer (concrete or brick wall) of a house, which are commonly called as two layers of leather.

In the prior art, as disclosed in chinese patent No. CN217156421U, an empty drum detecting device for a building wall surface comprises a base, a turntable, a bracket, a limit sleeve, a sliding sleeve, a knocking hammer, a connecting frame, a plurality of moving devices, a driving device, a transmission device and a sound collecting device, wherein the plurality of moving devices are installed at the lower end of the base, the turntable is installed at the upper end of the base through a bearing, the limit sleeve is installed at the upper end of the turntable through the bracket, a sliding rail groove is formed in the inner wall of the limit sleeve, the sliding sleeve slides in the sliding rail groove, the knocking hammer is installed on the inner wall of the sliding sleeve through the connecting frame, the driving device and the transmission device are also installed at the upper end of the turntable, the driving device is connected with the knocking hammer through the transmission device, and the sound collecting device is installed at the upper end of the limit sleeve; the device is convenient to move through a plurality of moving devices at the lower end of the base, after the device moves to the wall, a second motor is started, the output end of the second motor drives the first meshing wheel to rotate, the first meshing wheel rotates to drive the second meshing wheel to rotate through meshing transmission, the second meshing wheel rotates to drive the rotary table to rotate, the rotary table rotates to drive the limiting sleeve to rotate through the support, the knocking hammer is aligned to the wall, the first motor is started, the output end of the first motor drives the rotary rod to rotate, the rotary rod rotates to drive the knocking hammer to circularly move through the rotating sleeve, the transmission rod and the first rotation shaft, the knocking hammer moves to limit the wall in a moving mode through the sliding rail groove, the sliding sleeve and the connecting frame, the second rotation shaft rotates to drive the audio collector to rotate, the audio collector rotates to align to the hammering position, and sound generated by hammering the wall is collected through the audio collector and transmitted to the computer through wireless signals to intelligently analyze the wall hollowing condition.

Above-mentioned a hollowing detection device for building wall is inconvenient carries out hollowing detection to the detection point of wall not co-altitude, leads to detection data can not be better to show the hollowing condition of wall.

The inventor has provided a building wall hollowing detection device in order to solve the above-mentioned problem.

Disclosure of Invention

The utility model aims to provide a building wall hollowing detection device, which is used for solving the problem that the hollowing detection device for a building wall is inconvenient to detect hollowing detection points of different heights of the wall.

In order to achieve the above purpose, the basic scheme of the utility model provides a building wall hollowing detection device: the lifting mechanism comprises a lifting hydraulic cylinder and four lifting units, wherein the lifting units comprise lifting rods and lifting cylinders, the detection mechanism comprises a detection box, an impact block, a moving rod, two moving plates, a telescopic plate and two telescopic units, and the telescopic units comprise sliding rods and telescopic springs; the cylinder body of four lifter and lift pneumatic cylinder is all fixed on the base top surface, four lifter barrels are all fixed on the roof bottom surface, and four lifter of sliding connection respectively, lift pneumatic cylinder piston rod free end fixed connection roof bottom surface, the detection box is fixed on the roof top surface, and detection hole and removal hole have been seted up respectively on two opposite sides, two equal fixed connection detection box of sliding rod two opposite medial surfaces, two sliding rods of expansion plate sliding connection, two expansion spring uniform end fixed connection detection box medial surfaces, the other end fixed connection expansion plate, and cover respectively on two sliding rods, two sliding plates are two sliding connection respectively, and equal fixed connection striking piece, striking piece sliding connection detection hole, movable rod one end fixed connection striking piece, the other end passes the expansion plate and sliding connection removes the hole.

Compared with the prior art, the principle and effect of the utility model are as follows:

1. the principle is as follows: when the building wall is to be subjected to idle drum detection, a worker firstly moves the building wall idle drum detection device to a detection place, then starts a lifting hydraulic cylinder, enables the free end of a piston rod of the lifting hydraulic cylinder to move up and down together with a top plate and four lifting cylinders, the four lifting cylinders can slide on four lifting rods respectively, the top plate can move up and down together with a detection box and an impact block until the impact block moves to a preset height, at the moment, the impact block is aligned with a detection point of the building wall, the worker can stop the action of the lifting hydraulic cylinder, then pulls a movable rod, enables the movable rod to move away from the building wall with the impact block, the impact block can push two movable plates to slide on two sliding rods respectively, then the two movable plates can push telescopic plates to compress two telescopic springs, when the movable rods are pulled to preset positions, the worker loosens the movable rods, the telescopic plates, the two movable plates and the impact block can pass through the detection holes and impact the detection point of the building wall, and the worker can judge whether the building is idle drum or not according to sound generated when the impact point is impacted;

2. the lifting mechanism is arranged on the building wall hollowing detection device, so that the detection mechanism can detect detection points of different heights on the building wall, the problem that the hollowing detection device for the building wall is inconvenient to detect hollowing of the detection points of different heights on the wall is solved, and the hollowing condition of the wall can be better represented by detection data;

3. according to the building wall hollowing detection device, the four lifting units are arranged, so that the transverse pressure of the lifting hydraulic cylinder can be shared, and the service life of the lifting hydraulic cylinder is prolonged;

4. the building wall hollowing detection device is provided with the movable rod, so that workers can conveniently move the impact block.

Further, the lifting unit comprises an electric push rod, a positioning frame and a positioning rod, a plurality of positioning holes which are arranged in a row are formed in the side face of the lifting rod, the positioning frame is fixed on the side face of the lifting cylinder, a through hole is formed in the side face of the lifting cylinder, the electric push rod is fixedly connected with the positioning frame, the free end of the electric push rod penetrates through the positioning frame and is fixedly connected with the positioning rod, and the positioning rod is connected with the through hole and the positioning hole in a sliding mode.

Compared with the prior art, the utility model has the following effects:

1. the positioning rod can position the lifting cylinder, so that the pressure of the lifting hydraulic cylinder on the top plate is reduced, and the service life of the lifting hydraulic cylinder is prolonged;

2. the electric push rod and the locating rack can realize automatic movement of the locating rod, and labor intensity of workers is reduced.

Further, detection mechanism still includes the power unit, the power unit includes four power poles, the power seat, a power motor, the power shaft, the power wheel, power rope and rotation portion, rotation portion includes the axis of rotation, swivel becket and spacing dish, four power poles are all fixed on the roof top surface, the power seat is fixed on four power poles, power motor fixes on the power seat top surface, the motor shaft of power motor is connected to power shaft one end fixed, other end fixed connection power wheel, axis of rotation one end fixed connection power wheel, other end fixed connection spacing dish, swivel becket swivelling joint axis of rotation, and the diameter of spacing dish is greater than the internal diameter of swivel becket, power rope one end fixed connection swivel becket, other end fixed connection carriage release lever.

Compared with the prior art, the utility model has the following effects:

1. the four power rods and the power seat can support the power motor, and the power motor, the power shaft and the power wheel can provide power for the movement of the movable rod, so that the labor intensity of workers is reduced;

2. the power rope can reduce the impact force of the power wheel, the power shaft and the power motor on the moving rod, the service lives of the power wheel, the power shaft and the power motor are prolonged, and the rotating part can facilitate the action of the power rope.

Further, detection mechanism still includes the collection unit, and the collection unit is including collecting seat, audio collector, processing module and display, and collection seat one end is fixed on the detection case top surface, and other end fixed connection audio collector, processing module and display are all fixed on the roof top surface, and processing module electricity is connected audio collector and display.

Compared with the prior art, the utility model has the following effects:

1. the collection seat can support the audio collector, so that the audio collector can be aligned with the impact part of the building wall surface;

2. the audio collector, the processing module and the display can collect and process the impact sound of the building wall surface, and whether the building wall surface is empty or not is intelligently judged directly through the impact sound, so that the use threshold of the building wall surface empty detection device is reduced.

Further, the detecting box further comprises a buffer block, and the buffer block is fixedly connected with the inner side face of the detecting box and the sliding rod.

Compared with the prior art, the utility model has the following effects: the buffer block is fixedly connected with the inner side surface of the detection box and the sliding rod, so that the movable plate can be buffered, the influence of impact force on the top plate is reduced, and the stability of the top plate is improved.

Further, the number of the buffer blocks is two, and the buffer blocks are symmetrically arranged along the center line of the impact block.

Compared with the prior art, the utility model has the following effects: the buffer blocks are two in number and symmetrically arranged along the center line of the impact block, so that the stability of the top plate can be further improved.

Further, the four universal wheels are also included, and the four universal wheels are fixedly connected on the bottom surface of the base.

Compared with the prior art, the utility model has the following effects: four universal wheels are fixedly connected to the bottom surface of the base, so that convenience in moving the base is improved.

Further, the limiting plate is made of stainless steel.

Compared with the prior art, the utility model has the following effects: the material of spacing dish is the stainless steel, has reduced the erosion of moisture in the air to spacing dish, has increased spacing dish's life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a building wall hollowing detection device in the utility model;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a schematic diagram of the power unit of fig. 1.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: universal wheel 1, base 2, electric putter 3, locating rack 4, lift section of thick bamboo 5, roof 6, detection case 7, collection seat 8, audio collector 9, movable rod 10, power rope 11, swivel ring 12, limiting plate 13, power wheel 14, power seat 15, power pole 16, processing module 17, display 18, lift pneumatic cylinder 19, lifter 20, buffer block 21, slide bar 22, expansion plate 23, striking block 24, movable plate 25, expansion spring 26, locating hole 27, locating lever 28, power motor 29, power shaft 30, axis of rotation 31.

Embodiment one:

the specific implementation process of the utility model comprises the following steps: the building wall hollowing detection device comprises a base 2, a lifting mechanism, a top plate 6 and a detection mechanism, wherein the lifting mechanism comprises a lifting hydraulic cylinder 19 and four lifting units, the lifting unit comprises a lifting rod 20 and a lifting cylinder 5, the detection mechanism comprises a detection box 7, an impact block 24, a moving rod 10, two moving plates 25, a telescopic plate 23 and two telescopic units, and the telescopic units comprise a sliding rod 22 and a telescopic spring 26; the cylinder bodies of the lifting rods 20 and the lifting hydraulic cylinders 19 are fixed on the top surface of the base 2, the lifting cylinders 5 are fixed on the bottom surface of the top plate 6 and are respectively and slidably connected with the lifting rods 20, the free ends of piston rods of the lifting hydraulic cylinders 19 are fixedly connected with the bottom surface of the top plate 6, the detection box 7 is fixed on the top surface of the top plate 6, detection holes and moving holes are respectively formed in two opposite side surfaces, the two sliding rods 22 are respectively and fixedly connected with two opposite inner side surfaces of the detection box 7, the telescopic plate 23 is slidably connected with the two sliding rods 22, the two telescopic springs 26 are uniformly and fixedly connected with the inner side surfaces of the detection box 7, the other ends of the telescopic plates 23 are fixedly connected with the telescopic plates 23 and are respectively sleeved on the two sliding rods 22, the two moving plates 25 are respectively and slidably connected with the two sliding rods 22, the two sliding rods 24 are fixedly connected with the impact block 24, one end of the moving rod 10 is fixedly connected with the impact block 24, and the other end of the moving rod passes through the telescopic plate 23 and is slidably connected with the moving hole.

When the building wall is to be subjected to empty drum detection, a worker firstly moves the building wall empty drum detection device to a detection place, then starts the lifting hydraulic cylinder 19, enables the free end of a piston rod of the lifting hydraulic cylinder 19 to move up and down together with the top plate 6 and the four lifting cylinders 5, enables the four lifting cylinders 5 to slide on the four lifting rods 20 respectively, enables the top plate 6 to move up and down together with the detection box 7 and the impact block 24 until the impact block 24 moves to a preset height, at the moment, the impact block 24 is aligned with a detection point of the building wall, the worker can stop the action of the lifting hydraulic cylinder 19, then pulls the movable rod 10, enables the movable rod 10 to move away from the building wall with the impact block 24, enables the two movable plates 25 to slide on the two sliding rods 22 respectively, then enables the two movable plates 25 to push the telescopic plates 23 to compress the two telescopic springs 26, and when the movable rod 10 is pulled to a preset position, the movable rod 10, the telescopic plates 23, the two movable plates 25 and the impact block 24 can move under the action of the two spring blocks 26, and the detection point of the four telescopic plates can be detected, and whether the building wall can be impacted by the four lifting cylinders 5 or not can be judged according to whether the sound of the building wall can be impacted by the building wall or not.

Embodiment two:

the difference from the first embodiment is that:

the utility model provides a building wall hollowing detection device, as shown in fig. 1, fig. 2 and fig. 3, the elevating unit includes electric putter 3, locating rack 4 and locating lever 28, a plurality of locating holes 27 that arrange in a row have been seted up on the lifter 20 side, locating rack 4 is fixed on the lifter 5 side, the hole has been seted up on the lifter 5 side, electric putter 3 fixed connection locating rack 4, electric putter 3 free end passes locating rack 4 and fixed connection locating lever 28, locating lever 28 sliding connection passes hole and locating hole 27.

The four electric push rods 3 are externally connected with a control module, the control module can be a single chip microcomputer, when the lifting hydraulic cylinder 19 needs to act, a worker starts the control module, the control module controls the four electric push rods 3 to act, the free ends of the four electric push rods 3 can respectively drive the four positioning rods 28 to act, the four positioning rods 28 are completely far away from the positioning holes 27 and enter through holes, then the worker can start the lifting hydraulic cylinder 19 to act, the free ends of piston rods of the lifting hydraulic cylinder 19 can drive the top plate 6 and the four lifting cylinders 5 to move to a preset position, at the moment, the four positioning rods 28 can be respectively aligned with the other four positioning holes 27, then the worker starts the control module, the control module can control the four electric push rods 3, and the free ends of the four electric push rods 3 push the four positioning rods 28 to enter the four positioning holes 27 to form positioning of the four lifting cylinders 5.

Embodiment III:

the difference from the first embodiment is that:

the utility model provides a building wall hollowing detection device, as shown in fig. 1, fig. 2 and fig. 4, detection mechanism still includes the power unit, the power unit includes four power poles 16, power seat 15, power motor 29, power shaft 30, power wheel 14, power rope 11 and rotation portion, rotation portion includes axis of rotation 31, rotation ring 12 and spacing dish 13, four power poles 16 are all fixed on roof 6 top surface, power seat 15 is fixed on four power poles 16, power motor 29 is fixed on power seat 15 top surface, power shaft 30 one end fixed connection power motor 29's motor shaft, the other end fixed connection power wheel 14, axis of rotation 31 one end fixed connection power wheel 14, the other end fixed connection spacing dish 13, rotation ring 12 rotates and connects axis of rotation 31, and butt spacing dish 13, the diameter of spacing dish 13 is greater than the internal diameter of rotation ring 12, power rope 11 one end fixed connection rotation ring 12, the other end fixed connection movable rod 10.

When the wall surface of the building is to be detected, a worker starts the power motor 29, the power motor 29 drives the power shaft 30 to rotate together with the power wheel 14, the power wheel 14 drives the rotating shaft 31, the rotating ring 12 and the limiting disc 13 to rotate together, the rotating ring 12 drives the power rope 11 to act, the power rope 11 pulls the movable rod 10 and the movable block 24 to move away from the wall surface of the building together, the movable block 24 drives the two movable plates 25 and the telescopic plates 23 to move, the telescopic plates 23 compress the two telescopic springs 26, then the two telescopic springs 26 drive the telescopic plates 23, the two movable plates 25 and the movable block 24 to approach the wall surface of the building along with the rotation of the power wheel 14, the movable rod 10 drives the movable rod 11 and the movable block 24 to move together, the movable block 24 and the movable rod 10 form reciprocating movement along with the rotation of the power wheel 14, namely the movable block 24 continuously impacts the wall surface of the building to form a detection point, and the power motor 29 can be a servo motor.

Embodiment four:

the difference from the first embodiment is that:

the utility model provides a building wall hollowing detection device, as shown in fig. 1 and 2, detection mechanism still includes the collection unit, and the collection unit includes collection seat 8, audio collector 9, processing module 17 and display 18, and collection seat 8 one end is fixed on detection case 7 top surface, and the other end fixed connection audio collector 9, processing module 17 and display 18 are all fixed on roof 6 top surface, and processing module 17 electricity is connected audio collector 9 and display 18.

The audio collector 9, the processing module 17 and the display 18 can collect and process the impact sound of the building wall surface, and whether the building wall surface is empty or not can be intelligently judged directly through the impact sound, so that the use threshold of the building wall surface empty detection device is reduced, and the processing module 17 can be a singlechip.

Fifth embodiment:

the difference from the first embodiment is that:

the building wall hollowing detection device further comprises a buffer block 21, wherein the buffer block 21 is fixedly connected with the inner side face of the detection box 7 and a sliding rod 22 as shown in fig. 2.

The buffer block 21 is fixedly connected with the inner side surface of the detection box 7 and the sliding rod 22, so that the movable plate 25 can be buffered, the impact of the top plate 6 on the impact force is reduced, the stability of the top plate 6 is improved, and the sliding rod 22 can be made of 45 # steel.

Example six:

the difference from the fifth embodiment is that:

as shown in FIG. 2, the number of the buffer blocks 21 is two, and the buffer blocks are symmetrically arranged along the center line of the impact block 24.

The number of the buffer blocks 21 is two, and the buffer blocks are symmetrically arranged along the central line of the impact block 24, so that the stability of the top plate 6 can be further improved, and the two buffer blocks 21 can be made of damping rubber.

Embodiment seven:

the difference from the first embodiment is that:

the building wall hollowing detection device further comprises four universal wheels 1, wherein the four universal wheels 1 are fixedly connected to the bottom surface of the base 2, as shown in fig. 1 and 2.

Four universal wheels 1 of fixed connection have improved the convenience that base 2 removed on the bottom surface of base 2, and four universal wheels 1 evenly arrange along base 2 central line.

The limiting plate 13 is made of stainless steel.

The material of spacing dish 13 is the stainless steel, has reduced the erosion of moisture in the air to spacing dish 13, has increased spacing dish 13 life, and the material of axis of rotation 31 can be 45 steel, and the fixed connection of axis of rotation 31 and spacing dish 13 can be the welding.

When the building wall surface empty drum detection device works, a worker firstly moves the building wall surface empty drum detection device to a detection place, then starts the lifting hydraulic cylinder 19, enables the free end of a piston rod of the lifting hydraulic cylinder 19 to move up and down together with the top plate 6 and the four lifting cylinders 5, the four lifting cylinders 5 can slide on the four lifting rods 20 respectively, the top plate 6 can move up and down together with the detection box 7 and the impact block 24 until the impact block 24 moves to a preset height, at the moment, the impact block 24 is aligned with a detection point of a building wall surface, the worker can stop the action of the lifting hydraulic cylinder 19, then pulls the movable rod 10, enables the movable rod 10 to move away from the building wall surface with the impact block 24, enables the two movable plates 25 to slide on the two sliding rods 22 respectively, then enables the two movable plates 25 to push the telescopic plates 23 to compress the two telescopic springs 26, when the movable rod 10 is pulled to a preset position, the movable rod 10, the telescopic plates 23, the two movable plates 25 and the impact block 24 can move to the detection point under the action of the two spring blocks 26, and the four telescopic plates can be detected by the fact that the building wall surface can be impacted by the four lifting cylinders, and whether the building wall surface can be impacted by the sound or not can be judged according to the fact that the sound of the building wall surface is impacted by the four, and the building wall surface can be detected.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. Building wall hollowing detection device, its characterized in that: the lifting mechanism comprises a lifting hydraulic cylinder and four lifting units, wherein the lifting units comprise lifting rods and lifting cylinders, the detection mechanism comprises a detection box, an impact block, a moving rod, two moving plates, a telescopic plate and two telescopic units, and the telescopic units comprise sliding rods and telescopic springs; the cylinder body of four lifter and lift pneumatic cylinder is all fixed on the base top surface, four lifter barrels are all fixed on the roof bottom surface, and four lifter of sliding connection respectively, lift pneumatic cylinder piston rod free end fixed connection roof bottom surface, the detection box is fixed on the roof top surface, and detection hole and removal hole have been seted up respectively on two opposite sides, two equal fixed connection detection box of sliding rod two opposite medial surfaces, two sliding rods of expansion plate sliding connection, two expansion spring uniform end fixed connection detection box medial surfaces, the other end fixed connection expansion plate, and cover respectively on two sliding rods, two sliding plates are two sliding connection respectively, and equal fixed connection striking piece, striking piece sliding connection detection hole, movable rod one end fixed connection striking piece, the other end passes the expansion plate and sliding connection removes the hole.

2. The building wall hollowing detection device according to claim 1, wherein: the lifting unit comprises an electric push rod, a positioning frame and a positioning rod, wherein a plurality of positioning holes which are arranged in a row are formed in the side face of the lifting rod, the positioning frame is fixed on the side face of the lifting cylinder, a through hole is formed in the side face of the lifting cylinder, the electric push rod is fixedly connected with the positioning frame, the free end of the electric push rod penetrates through the positioning frame and is fixedly connected with the positioning rod, and the positioning rod is slidably connected with the through hole and the positioning hole.

3. The building wall hollowing detection device according to claim 1, wherein: the detection mechanism further comprises a power unit, the power unit comprises four power rods, a power seat, a power motor, a power shaft, power wheels, a power rope and a rotating part, the rotating part comprises a rotating shaft, a rotating ring and a limiting disc, the four power rods are all fixed on the top surface of the top plate, the power seat is fixed on the four power rods, the power motor is fixed on the top surface of the power seat, one end of the power shaft is fixedly connected with a motor shaft of the power motor, the other end of the power shaft is fixedly connected with the power wheels, one end of the rotating shaft is fixedly connected with the power wheels, the other end of the power shaft is fixedly connected with the limiting disc, the rotating ring is rotationally connected with the rotating shaft and is abutted to the limiting disc, the diameter of the limiting disc is larger than the inner diameter of the rotating ring, one end of the power rope is fixedly connected with the rotating ring, and the other end of the power rope is fixedly connected with the moving rod.

4. The building wall hollowing detection device according to claim 1, wherein: the detection mechanism further comprises a collection unit, the collection unit comprises a collection seat, an audio collector, a processing module and a display, one end of the collection seat is fixed on the top surface of the detection box, the other end of the collection seat is fixedly connected with the audio collector, the processing module and the display are both fixed on the top surface of the top plate, and the processing module is electrically connected with the audio collector and the display.

5. The building wall hollowing detection device according to claim 1, wherein: the device also comprises a buffer block, wherein the buffer block is fixedly connected with the inner side surface of the detection box and the sliding rod.

6. The building wall hollowing detection device according to claim 5, wherein: the number of the buffer blocks is two, and the buffer blocks are symmetrically arranged along the center line of the impact block.

7. The building wall hollowing detection device according to claim 1, wherein: the four universal wheels are fixedly connected to the bottom surface of the base.

8. A building wall hollowing detection device according to claim 3, wherein: the limiting plate is made of stainless steel.