Ground tile hollowing detection device

Abstract

The invention relates to the technical field of hollowing detection equipment, in particular to a floor tile hollowing detection device. The adjusting part comprises a main shaft rotationally arranged on the mounting frame, a transmission assembly is arranged between a rotating shaft and the main shaft, two sets of supporting plates arranged at intervals are further arranged on the operating rod, a guide ring is arranged between the two sets of supporting plates, a middle rod slides on the guide ring, and a frame body slidably connected with the main shaft is arranged at the bottom end of the middle rod. And a multi-tooth gear and a few-tooth gear which are in contact fit with the front end of the knocking rod are slidably clamped on the main shaft. By introducing the adjusting part capable of adjusting the knocking frequency, the knocking frequency and the knocking speed of the knocking part can be flexibly adjusted according to actual requirements, so that hollowing detection under different conditions can be more accurately handled, primary screening is performed by using normal frequency in conventional detection, and when a hollowing area needs to be further detected or confirmed, the detection efficiency is improved. Therefore, more detailed analysis can be realized by improving the knocking frequency, and the adaptability and the detection accuracy of the equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hollowing detection equipment, and in particular to a floor tile hollowing detection device. Background Art

[0002] Detecting hollow areas in floor tiles is a critical step in ensuring installation quality, extending their lifespan, and ensuring safe use. Hollow areas can easily cause tiles to loosen or fall off, increasing the risk of falls and property damage. Prolonged footsteps in these areas can also cause tiles to crack or break. Furthermore, water can easily accumulate in hollow areas, leading to mold, odors, and even bacterial growth.

[0003] Currently, the commonly used inspection method includes manual operation of hollow hammers for inspection. This method requires the inspector to continuously adjust the hammering frequency to complete the inspection work. It not only consumes a lot of physical strength during long-term operation, but also has low efficiency. At the same time, there are also ceramic tile hollow detection devices on the market, such as the patent publication number CN117030846A. This device adopts a push-type fixed-distance knocking method to solve the problem of manual knocking through equipment. Although this can improve the overall detection speed, since the device maintains a fixed knocking frequency, when faced with uncertain hollow areas or hollow bricks that require more detailed confirmation, it cannot be flexibly adjusted to a faster rate for knocking, which limits the overall adaptability of the device and the flexibility of collaborative work.

[0004] To this end, a floor tile hollowing detection device with adjustable knocking frequency is specially designed to improve the adaptability and flexibility of operation, thereby effectively solving the above technical problems and improving detection efficiency and accuracy. Summary of the Invention

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the present invention provides a floor tile hollowing detection device capable of adjusting the knocking frequency.

[0006] The technical solution is: a floor tile hollowing detection device, comprising: The operating lever is in a tilted state; The mounting frame is arranged at the bottom end of the operating rod, a rotating shaft is arranged on the mounting frame, and moving wheels are arranged at both ends of the rotating shaft; A striking part for hollow drum detection and processing, the striking part includes a striking rod rotating between two sides of the bottom of the installation frame, and torsion springs are provided between both sides of the striking rod and the inner wall of the installation frame; The adjusting part is used to adjust the knocking frequency. The adjusting part includes a main shaft rotating on the mounting frame. The main shaft is located on the rear side of the rotating shaft, and a transmission assembly is provided between the rotating shaft and the main shaft to make the two rotate synchronously. Two groups of support plates arranged at intervals are also provided on the operating rod. A guide ring is provided between the two groups of support plates. A middle rod slides on the guide ring. A frame body slidably connected to the main shaft is provided at the bottom end of the middle rod. A multi-tooth gear and a small-tooth gear located inside the frame body are also slid and clamped on the main shaft. The multi-tooth gear and the small-tooth gear are both in contact with the front end of the knocking rod.

[0007] Furthermore, the transmission assembly includes a driving gear arranged on the shaft end of the rotating shaft, and a driven gear meshing with the driving gear is arranged on the shaft end of the main shaft.

[0008] Furthermore, it also includes a brake part for stopping the detection operation, the brake part includes a grooved plate sliding on both sides of the bottom of the installation frame, a single-shaped groove is provided on the grooved plate, and elastic parts are provided between the top of the grooved plate and the inner wall of the installation frame, an extension rod is provided on each side of the knocking rod, the end of the extension rod abuts and slides through the single-shaped groove on the same side, a pull plate is hinged at the top of the operating rod, and a pull rope is provided between the pull plate and the grooved plates on both sides, and the pull rope is slidably embedded in the operating rod.

[0009] Furthermore, it also includes a marking component for marking hollow areas, which includes a sliding plate that slides on the rear side of the mounting frame, a foot pedal is provided on the upper side of the sliding plate, and marking pens are symmetrically provided on the lower side of the sliding plate. Auxiliary wheels for auxiliary support are also provided on both sides of the rear of the mounting frame.

[0010] Furthermore, it also includes a scraping component, which includes a vertical pole that is slidably installed at the front end of the installation frame, a scraper is provided at the bottom end of the vertical pole, and a weight block is provided at the upper end of the vertical pole.

[0011] Furthermore, it also includes a support frame, the top end of the vertical pole is hingedly provided with the support frame, and the support frame is abutted and matched with the installation frame.

[0012] Furthermore, it also includes an infrared detector, which is installed on the front of the installation frame. A display screen for displaying the detection image is set at the top of the operating rod, and a transmission line is connected between the display screen and the infrared detector.

[0013] Furthermore, it also includes a clamping plate, on which the middle rod is rotatably provided with a clamping plate that is clamped and adapted to the two sides of the guide ring.

[0014] The present invention has the following advantages: 1. The present invention introduces an adjustment part with adjustable knocking frequency, so that the operator can flexibly adjust the knocking frequency and speed of the knocking part according to actual needs, so as to more accurately respond to hollowing detection tasks in different situations. In routine detection, normal frequency is used for preliminary screening, and when further exploration or confirmation of hollowing areas is required, more detailed analysis can be achieved by increasing the knocking frequency; in this way, not only the adaptability and detection accuracy of the equipment are improved, but also the physical exertion of the operator is significantly reduced, and the work efficiency is greatly improved. Especially for large-area tile paving areas, the use of this device can effectively shorten the operation time, and compared with the traditional manual knocking method, it shows higher practicality and efficiency. This not only saves time and labor costs, but also ensures the reliability and accuracy of the detection results.

[0015] 2. The present invention is provided with a brake part. By holding the pull plate and utilizing the effect of the pull rope, the grooved plate is driven to move up and against the extension rod, so that the detection operation of the knocking rod can be quickly stopped when necessary, effectively avoiding unnecessary damage to the tiles and ensuring the safety and accuracy of the operation.

[0016] 3. The present invention also integrates a variety of auxiliary tools such as marking components, scraping components and infrared detectors, providing a more comprehensive solution to handle the auxiliary operations required in the hollowing detection process. The above functions include quickly marking the hollowing location, effectively cleaning surface debris, and providing instant feedback through real-time monitoring and display of detection images, greatly enhancing the efficiency and accuracy of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the assembly structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting frame, knocking rod and other components of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the components of the striking part of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of some components of the adjustment part and the brake part of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of components such as the striking rod, the small-tooth gear and the large-tooth gear of the present invention.

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the disassembled components such as the small-tooth gear and the multi-tooth gear of the present invention.

[0023] Figure 7 It is a planar structural sectional view of the components of the brake stop part of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of some parts of the marking component and the scraping component of the present invention.

[0025] Figure 9 It is a three-dimensional structural cross-sectional view of each component of the marking assembly of the present invention.

[0026] Figure 10 It is a schematic diagram of the three-dimensional structure of components such as the infrared detector, display screen and transmission line of the present invention.

[0027] Figure 11 This is a planar structural sectional view of the various components of the scraping assembly of the present invention.

[0028] The names and serial numbers of the parts in the figure are: 1. Operating lever, 2. Mounting frame, 21. Rotating shaft, 22. Moving wheel, 3. Knocking part, 31. Knocking rod, 32. Torsion spring, 33. Extension rod, 4. Adjusting part, 41. Main shaft, 42. Driving gear, 43. Driven gear, 44. Support plate, 45. Guide ring, 46. Middle rod, 461. Card plate, 47. Gear with few teeth, 48. Gear with many teeth, 5. Braking part, 51. Grooved plate, 52. Pull plate, 53. Pull rope, 54. Elastic part, 6. Marking assembly, 61. Sliding plate, 62. Foot pedal, 63. Marking pen, 64. Auxiliary wheel, 7. Scraping assembly, 71. Vertical pole, 72. Scraper, 73. Weight block, 74. Support frame, 8. Infrared detector, 81. Display screen, 82. Transmission line. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "dispose," "install," "connect," and "connect" should be understood in a broad sense. For example, "connect" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; or it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0030] Example 1: A floor tile hollowing detection device, such as Figures 1-6 Shown, including: The operating rod 1 is tilted and has a handle extending backwards at the top end for easy operation. The mounting frame 2 is fixedly mounted at the bottom end of the operating rod 1. The interior of the mounting frame 2 is a hollow structure, and a rotating shaft 21 is rotatably provided between the left and right sides of the front portion of the mounting frame 2. Moving wheels 22 are provided at both ends of the rotating shaft 21, thereby forming a cart-like structure. The knocking part 3 for hollow drum detection and processing includes a knocking rod 31 that rotates between the left and right sides of the bottom of the mounting frame 2. The bottom of the mounting frame 2 is symmetrically provided with a downwardly extending plate body. The knocking rod 31 is located between the two side plates to ensure that the knocking rod 31 is located below the mounting frame 2. Torsion springs 32 are provided between the left and right sides of the knocking rod 31 and the inner wall of the plate body of the mounting frame 2 to provide the necessary elastic buffer for the rotation operation of the knocking rod 31. Reference Figure 3 It can be seen that the rear section of the knocking rod 31 is longer than the front section, and the rear end of the knocking rod 31 is provided with a ball end specifically for hollow drum detection. In addition, the front end of the knocking rod 31 is designed to be a convex shape extending forward. This structural design makes the knocking rod 31 appear to be tilted backward in a natural state, that is, when it is under the action of gravity, that is, the front end is tilted up and the rear end is facing downward.

[0031] The adjusting part 4 for adjusting the knocking frequency includes a main shaft 41 which is rotatably arranged between the left and right sides of the mounting frame 2. The main shaft 41 is located at the rear side of the rotating shaft 21, and a transmission assembly is provided between the rotating shaft 21 and the main shaft 41 so that the two rotate synchronously. Two groups of support plates 44 with left and right intervals are also provided on the operating rod 1. The number of each group of support plates 44 is two, and the two support plates 44 in the same group are symmetrically distributed up and down. A guide ring 45 is fixedly provided between the two groups of support plates 44. The guide ring 45 is located at the front side of the operating rod 1. A middle rod 46 slides on the guide ring 45. The middle rod 46 can slide left and right along the guide ring 45, and the bottom end of the middle rod 46 extends to the interior of the hollow structure of the mounting frame 2. A frame body slidably connected to the main shaft 41 is fixed at the bottom end of the middle rod 46. A multi-tooth gear 48 and a small-tooth gear 47 located inside the frame body are also slidably and clamped on the main shaft 41. The multi-tooth gear 48 and the small-tooth gear 47 are both in contact with the front end of the knocking rod 31.

[0032] See Figure 6 As can be seen, four left-right sliding grooves are provided on the surface of the main shaft 41 at intervals along the circumferential direction, and four protrusions with the same layout as the sliding grooves are provided on the inner walls of the multi-tooth gear 48 and the small-tooth gear 47. This makes the multi-tooth gear 48 and the small-tooth gear 47 more stable when sliding with the main shaft 41. At the same time, by pushing the middle rod 46, the multi-tooth gear 48 and the small-tooth gear 47 are pushed to slide synchronously under the coordinated drive of the bottom frame thereof, thereby adjusting the positions of the two at the front end of the striking rod 31 to achieve a switching effect. More specifically, the multi-tooth gear 48 has six convex teeth, while the small-tooth gear 47 has three convex teeth. Due to the difference in the number of teeth between the multi-tooth gear 48 and the small-tooth gear 47, when the knocking rod 31 tilts downward due to gravity, the multi-tooth gear 48 or the small-tooth gear 47 rotating with the main shaft 41 will contact the raised front end of the knocking rod 31, and lift the knocking rod 31 so that the rear end of the knocking rod 31 will not directly contact the floor tiles. This mechanism can effectively control the knocking frequency; specifically, when switching to the small-tooth gear 47, the device knocks at a normal frequency, which is suitable for routine detection operations; when switching to the multi-tooth gear 48, high-frequency knocking is achieved, which is suitable for multiple knocking operations when discovering hollow areas or further confirming the process. In this way, by switching the multi-tooth gear 48 and the small-tooth gear 47 with different numbers of teeth, the knocking frequency can be flexibly adjusted according to actual needs to meet the detection needs in different scenarios, further effectively improving the operational flexibility of the device, and optimizing the detection efficiency and accuracy, providing higher convenience and reliability for practical applications.

[0033] like Figure 4-Figure 6 As shown, the transmission assembly includes a driving gear 42 arranged on the shaft end of the rotating shaft 21, and a driven gear 43 meshing with the driving gear 42 is provided on the shaft end of the main shaft 41. When the pushing device moves, as the rotating shaft 21 and the moving wheel 22 rotate, the driving gear 42 rotates accordingly and meshes with the driven gear 43, thereby driving the main shaft 41 to rotate.

[0034] like Figure 5 As shown, a clamping plate 461 is also included. The middle rod 46 is rotatably provided with a clamping plate 461 that is engaged with the left and right sides of the guide ring 45 to stabilize the position of the middle rod 46 after movement.

[0035] like Figure 1 、 Figure 3 、 Figure 4 and Figure 7 As shown, it also includes a brake stop part 5 for stopping the detection operation. The brake stop part 5 includes a grooved plate 51 slidably penetrated on the left and right sides of the bottom of the mounting frame 2. The grooved plate 51 is provided with a single groove, and longitudinal strip grooves are correspondingly provided on the left and right sides of the mounting frame 2, so that the upper end of the grooved plate 51 can be located in the strip groove on the same side, thereby further limiting the movement range of the grooved plate 51, and elastic members 54 are provided between the top of the grooved plate 51 and the inner wall of the strip groove on the same side of the mounting frame 2. In this embodiment, the elastic member 54 is a spring, which can provide the necessary elastic force for the reset movement of the grooved plate 51. An extension rod 33 is fixed to the left and right sides of the knocking rod 31 respectively, and the end of the extension rod 33 abuts and slides through the single groove on the same side. A pull plate 52 is hinged at the top of the operating rod 1 and is located below the handle. A pull rope 53 is provided between the pull plate 52 and the grooved plates 51 on both sides, and the pull rope 53 is slidably embedded in the operating rod 1.

[0036] When using this device, first place it on the ground area to be inspected. The operator grasps the handle of the operating lever 1 and performs the inspection by pushing the entire device forward. During this process, as the device moves, the rotating shaft 21 and the moving wheel 22 rotate accordingly, and the support device moves smoothly. At the same time, the driving gear 42 rotates synchronously with the rotating shaft 21 and meshes with the driven gear 43, thereby driving the main shaft 41 and its multi-tooth gear 48 and small-tooth gear 47 to rotate synchronously; The tapping frequency can be adjusted according to the detection requirements. In the normal detection state, push the middle rod 46 to move to the left along the guide ring 45, and at the same time flip the clamping plate 461 and buckle it on the left side of the guide ring 45 to fix the position of the middle rod 46. The movement of the middle rod 46 will drive the frame connected to it to move synchronously along the main shaft 41, so that the frame pushes the multi-tooth gear 48 and the small-tooth gear 47 to the left until the small-tooth gear 47 is aligned with the end of the tapping rod 31. At this time, the rotating small-tooth gear 47 continuously taps the tapping rod 31 through its convex teeth, ensuring that the tapping rod 31 maintains a normal tapping frequency, thereby continuously detecting the floor tiles during the movement of the device; When the knocking rod 31 contacts the suspected hollow area, if further confirmation is required, the restriction of the clamping plate 461 can be released, and the middle rod 46 can be moved to the right so that the multi-tooth gear 48 replaces the position of the small-tooth gear 47. Subsequently, the pushing device moves around the suspected hollow area. Since the multi-tooth gear 48 is in contact with the knocking rod 31, the knocking frequency of the knocking rod 31 is significantly improved, thereby locating the hollow area more quickly and accurately. After completing the hollow detection, the operator can pinch the pull plate 52 to flip it upward, and under the action of the pull rope 53, pull the grooved plate 51 up along the corresponding strip groove, and the elastic member 54 is deformed accordingly. The upward movement of the grooved plate 51 will drive the extension rod 33 that resists it to move synchronously, and then pull the knocking rod 31 to a state parallel to the ground, achieving the effect of stopping the detection operation. Then, the operator can mark the marked hollow area for subsequent maintenance and processing, and finally repeat the above steps to complete the hollow detection work of the entire floor tile.

[0037] Example 2: Based on Example 1, Figure 1 、 Figure 8 and Figure 9As shown, it also includes a marking component 6 for marking hollow parts. The marking component 6 includes a sliding plate 61 sliding on the rear side of the mounting frame 2. The sliding plate 61 slides in the up and down directions. In the absence of external force, the friction between the sliding plate 61 and the mounting frame 2 is sufficient to support the sliding plate 61 to remain stationary and prevent it from sliding down on its own. A foot pedal 62 is fixedly provided on the upper side of the sliding plate 61, and a marking pen 63 is symmetrically provided on the lower side of the sliding plate 61. Auxiliary wheels 64 for auxiliary support are also fixed on the left and right sides of the rear of the mounting frame 2. The bottom of the auxiliary wheel 64 maintains the same horizontal plane as the moving wheel 22 to ensure the smooth support and operation of the entire device when using the marking component 6.

[0038] When a hollow area is detected and needs to be marked, the operator simply steps on the foot pedal 62, pushing the sliding plate 61 downward so that the marking pen 63 touches the ground. The marking operation is then completed by moving the pushing device a certain distance. To reset the marking pen 63, the operator simply pushes up the foot pedal 62, moving the sliding plate 61 upward, and the marking pen 63 is lifted and returned to its original position.

[0039] like Figure 1 、 Figure 8 、 Figure 10 and Figure 11 As shown, it also includes a scraping assembly 7, which includes a vertical rod 71 slidably penetrated at the front end of the installation frame 2, a scraper 72 is provided at the bottom end of the vertical rod 71, and a load-bearing block 73 is provided at the upper end of the vertical rod 71.

[0040] like Figure 8 、 Figure 10 and Figure 11 As shown, a support frame 74 is also included. The top end of the vertical rod 71 is hingedly provided with the support frame 74, and the support frame 74 is in abutment with the installation frame 2.

[0041] During hollowing detection, the weight block 73 forces the upright 71 to move downward, ensuring that the scraper 72 maintains close contact with the ground. This effectively removes surface impurities (such as adhering mortar) from the ground during the inspection process, preventing them from affecting the accuracy of the inspection results. When the scraper assembly 7 is not needed, the operator can simply pull the upright 71 upward and push the support frame 74 until it firmly contacts the mounting frame 2, thereby limiting the downward movement of the upright 71 and ensuring that the scraper 72 does not contact the ground.

[0042] like Figure 8 and Figure 10 As shown, it also includes an infrared detector 8. The infrared detector 8 is installed on the front of the mounting frame 2. A display screen 81 for displaying the detection image is provided at the top of the operating rod 1. A transmission line 82 is connected between the display screen 81 and the infrared detector 8.

[0043] When subsequently processing hollow areas, such as drilling and filling ceramic tiles, the infrared detector 8 can be used to illuminate the inside of the drill hole. Through infrared detection technology, the specific direction of the hollow area can be detected, and the acquired image data can be transmitted to the display screen 81 in real time through the transmission line 82. The operator can then accurately judge the range and direction of the hollow according to the image information on the display screen 81, thereby assisting in completing the subsequent filling work.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A floor tile hollowing detection device, comprising: The operating lever (1) is in an inclined state; A mounting frame (2) is provided at the bottom end of the operating rod (1); a rotating shaft (21) is rotatable on the mounting frame (2); and moving wheels (22) are provided at both ends of the rotating shaft (21); It is characterized by further comprising: A knocking part (3) for hollow drum detection processing, the knocking part (3) comprising a knocking rod (31) rotating between two sides of the bottom of the installation frame (2), and a torsion spring (32) is provided between both sides of the knocking rod (31) and the inner wall of the installation frame (2); The regulating part (4) is used to adjust the knocking frequency. The regulating part (4) includes a main shaft (41) rotating on the mounting frame (2). The main shaft (41) is located at the rear side of the rotating shaft (21). A transmission assembly is provided between the rotating shaft (21) and the main shaft (41) so that the two rotate synchronously. Two groups of support plates (44) arranged at intervals are also provided on the operating rod (1). A guide ring (45) is provided between the two groups of support plates (44). A middle rod (46) slides on the guide ring (45). A frame body slidably connected to the main shaft (41) is provided at the bottom end of the middle rod (46). A multi-tooth gear (48) and a small-tooth gear (47) located inside the frame body are also slidably and clamped on the main shaft (41). The multi-tooth gear (48) and the small-tooth gear (47) are both in contact with the front end of the knocking rod (31).

2. A floor tile hollowing detection device according to claim 1, characterized in that: The transmission assembly comprises a driving gear (42) arranged on the shaft end of the rotating shaft (21), and a driven gear (43) meshing with the driving gear (42) is arranged on the shaft end of the main shaft (41).

3. The floor tile hollowing detection device according to claim 2, characterized in that: The invention also includes a brake part (5) for stopping the detection operation, wherein the brake part (5) includes a grooved plate (51) sliding on both sides of the bottom of the installation frame (2), a straight groove is provided on the grooved plate (51), and an elastic member (54) is provided between the top of the grooved plate (51) and the inner wall of the installation frame (2), an extension rod (33) is provided on each side of the knocking rod (31), and the end of the extension rod (33) abuts and slides through the straight groove on the same side, a pull plate (52) is hinged on the top of the operating rod (1), and a pull rope (53) is provided between the pull plate (52) and the grooved plates (51) on both sides, and the pull rope (53) is slidably embedded in the operating rod (1).

4. The floor tile hollowing detection device according to claim 3, characterized in that: The invention also includes a marking assembly (6) for marking hollow parts, wherein the marking assembly (6) includes a sliding plate (61) sliding on the rear side of the mounting frame (2), a foot pedal (62) is provided on the upper side of the sliding plate (61), and a marking pen (63) is symmetrically provided on the lower side of the sliding plate (61), and auxiliary wheels (64) for auxiliary support are also provided on both sides of the rear part of the mounting frame (2).

5. The floor tile hollowing detection device according to claim 4, characterized in that: It also includes a scraping assembly (7), which includes a vertical rod (71) slidably inserted into the front end of the mounting frame (2), a scraper (72) is provided at the bottom end of the vertical rod (71), and a weight block (73) is provided at the upper end of the vertical rod (71).

6. The floor tile hollowing detection device according to claim 5, characterized in that: It also includes a support frame (74), the top end of the vertical rod (71) is hingedly provided with the support frame (74), and the support frame (74) is in abutment with the installation frame (2).

7. The floor tile hollowing detection device according to claim 6, characterized in that: It also includes an infrared detector (8), the infrared detector (8) is installed on the front of the installation frame (2), a display screen (81) for displaying a detection image is provided at the top end of the operating rod (1), and a transmission line (82) is connected between the display screen (81) and the infrared detector (8).

8. The floor tile hollowing detection device according to claim 7, characterized in that: It also includes a clamping plate (461), and the clamping plate (461) is rotatably mounted on the middle rod (46) and is adapted to be clamped and adapted to the two sides of the guide ring (45).

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