Floor thickness gauge for engineering quality detection
The floor slab thickness gauge driven by a motor uses a threaded rod and gear transmission to automatically lift and lower the receiver, which solves the problems of high labor intensity and low detection accuracy in the existing technology, and realizes efficient and accurate floor slab thickness detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN RUNMING TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-01
AI Technical Summary
Existing methods for measuring floor slab thickness are labor-intensive and have low accuracy, especially when measuring large areas, where efficiency and accuracy are difficult to guarantee.
The detection component is driven by a motor. The receiver is automatically raised and lowered through a threaded rod and gear transmission. Combined with the high-precision control of the servo motor, it ensures that the receiver is in close contact with the floor and that the signal is accurately received.
It significantly reduces the labor intensity of operators, improves testing efficiency and accuracy, and is especially suitable for testing large-area floor slabs.
Smart Images

Figure CN224189209U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engineering quality testing technology, specifically to a floor slab thickness gauge for engineering quality testing. Background Technology
[0002] In the field of building construction, floor slabs, as a crucial component of building structures, directly affect the safety and stability of buildings if their thickness meets design requirements. Floor slabs that are too thin may fail to withstand the expected loads, leading to structural deformation or even collapse; while floor slabs that are too thick increase construction costs and waste resources. Therefore, accurate and efficient testing of floor slab thickness is essential during construction and final acceptance.
[0003] Currently, floor slab thickness measurement mainly relies on manual handheld measuring devices. Operators need to hold the receiver to a suitable position below the floor slab to coordinate with the transmitter above it to complete the measurement. This method has several drawbacks. Prolonged handheld measurement can lead to operator fatigue, affecting efficiency, especially when measuring large floor slabs. Furthermore, manually holding the receiver makes it difficult to maintain a stable and vertical position; shaking or tilting can cause data inaccuracies and reduce the accuracy of the results. Therefore, this paper proposes a floor slab thickness gauge for engineering quality inspection to address these issues. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a floor slab thickness gauge for engineering quality inspection, which has the advantages of reducing labor intensity and improving detection accuracy, and solves the problems of high labor intensity and low detection accuracy of existing thickness measurement methods.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A floor slab thickness gauge for engineering quality inspection includes a base plate, a support fixedly connected to the top of the base plate, and a connecting frame fixedly connected to the top of the support. The inner side of the support is provided with a detection component for inspection.
[0007] The detection assembly includes a motor fixedly connected to the inner bottom wall of the support. The output shaft of the motor is fixedly connected to a transmission gear. A driven gear meshes with the bottom of the transmission gear. A threaded rod is fixedly connected to the inner side of the center of the driven gear. A threaded block is threadedly connected to the outer side of the threaded rod. Connecting blocks are fixedly connected to both sides of the threaded block. Connecting plates are fixedly connected to opposite sides of the connecting blocks on both sides. A fixing plate is fixedly connected between the tops of the connecting plates on both sides. Four elastic support members are fixedly connected to the top of the fixing plate. A mounting plate is fixedly connected between the tops of the four elastic support members. A receiver is fixedly connected to the top of the mounting plate. A placement box is fixedly connected to the top of the support. A transmitter is placed inside the placement box.
[0008] Furthermore, four movable wheels are fixedly connected to the bottom corners of the base plate, and a motor maintenance door is hinged to the front of the support.
[0009] Furthermore, the motor is a servo motor, and both the transmission gear and the driven gear are bevel gears.
[0010] Furthermore, the bottom end of the threaded rod is rotatably connected to the inner bottom wall of the support, and the top end of the threaded rod sequentially penetrates the inner top wall of the support, the bottom of the connecting frame, and the threaded groove of the threaded block, and is rotatably connected to the inner top wall of the connecting frame.
[0011] Furthermore, the length and width of the threaded block are equal to the length and width inside the connecting frame, respectively, and the threaded block is slidably connected between the inner left side wall and the inner right side wall of the connecting frame.
[0012] Furthermore, lifting ports adapted to the connecting block are provided on both the left and right sides inside the connecting frame, and the connecting block is slidably connected to the inner side of the corresponding lifting port.
[0013] Furthermore, the four elastic support members are respectively arranged at the four corners of the top of the fixed plate.
[0014] Compared with the prior art, this utility model provides a floor slab thickness gauge for engineering quality inspection, which has the following beneficial effects:
[0015] The slab thickness gauge used for quality inspection in this project features a motor-driven detection component that enables automatic lifting and lowering of the receiver. This eliminates the need for operators to hold the receiver for extended periods during inspection. During the inspection process, the operator simply moves the thickness gauge to the appropriate position and starts the motor to complete the test, significantly reducing labor intensity and improving inspection efficiency. It is particularly suitable for thickness inspection of large-area slabs. Attached Figure Description
[0016] Figure 1 This is a cross-sectional view of the structure of this utility model;
[0017] Figure 2 This is a front view of the structure of this utility model;
[0018] Figure 3 This is a perspective view of the base plate, support, and connecting frame in the structure of this utility model.
[0019] In the diagram: 1. Base plate; 2. Support; 3. Connecting frame; 4. Motor; 5. Transmission gear; 6. Driven gear; 7. Threaded rod; 8. Threaded block; 9. Connecting block; 10. Connecting plate; 11. Fixing plate; 12. Elastic support; 13. Mounting plate; 14. Receiver; 15. Placement box; 16. Transmitter. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 3 The floor slab thickness gauge for engineering quality inspection in this embodiment includes a base plate 1, a support 2 fixedly connected to the top of the base plate 1, and a connecting frame 3 fixedly connected to the top of the support 2. The inner side of the support 2 is provided with a detection component for inspection.
[0022] Please see Figure 1 In this embodiment, the detection component includes a motor 4 fixedly connected to the inner bottom wall of the support 2. The output shaft of the motor 4 is fixedly connected to a transmission gear 5. A driven gear 6 meshes with the bottom of the transmission gear 5. A threaded rod 7 is fixedly connected to the inner side of the center of the driven gear 6. A threaded block 8 is threadedly connected to the outer side of the threaded rod 7. Connecting blocks 9 are fixedly connected to both the left and right sides of the threaded block 8. Connecting plates 10 are fixedly connected to the opposite sides of the connecting blocks 9 on both the left and right sides. A fixing plate 11 is fixedly connected between the tops of the connecting plates 10 on both the left and right sides. Four elastic support members 12 are fixedly connected to the top of the fixing plate 11. A mounting plate 13 is fixedly connected between the tops of the four elastic support members 12. A receiver 14 is fixedly connected to the top of the mounting plate 13. A placement box 15 is fixedly connected to the top of the support 2. A transmitter 16 is placed inside the placement box 15.
[0023] Specifically, the four corners of the bottom of the base plate 1 are fixedly connected to the movable wheels, and the front of the support 2 is hinged to the motor maintenance door.
[0024] It should be noted that the movable wheels facilitate the easy movement of the entire floor slab thickness gauge between different detection positions, improving detection efficiency and reducing the labor intensity of manual handling. The motor maintenance door hinged on the front of the support 2 can be quickly opened to perform maintenance operations on the motor 4 when it malfunctions or needs maintenance, ensuring that the detection components can operate normally and guaranteeing the continuity and stability of the detection work.
[0025] Specifically, motor 4 is a servo motor, and both transmission gear 5 and driven gear 6 are bevel gears.
[0026] It should be noted that a servo motor is used as the power source because servo motors have advantages such as high precision, high response speed, and good speed regulation performance. During the detection process, the speed and direction of the motor 4 can be precisely controlled, thereby achieving precise adjustment of the rotation angle and speed of the threaded rod 7. This ensures that the receiver 14 can move up and down according to the predetermined speed and trajectory, improving the accuracy and reliability of the detection data. The transmission gear 5 and the driven gear 6 are bevel gears, which have the characteristics of smooth transmission, low noise, high transmission efficiency, and the ability to change the transmission direction.
[0027] Specifically, the bottom end of the threaded rod 7 is rotatably connected to the inner bottom wall of the support 2, and the top end of the threaded rod 7 passes through the inner top wall of the support 2, the bottom of the connecting frame 3 and the threaded groove of the threaded block 8 in sequence, and is rotatably connected to the inner top wall of the connecting frame 3.
[0028] It should be noted that the bottom end of the threaded rod 7 is rotatably connected to the inner bottom wall of the support 2, and the top end is rotatably connected to the inner top wall of the connecting frame 3. This design provides stable support for the threaded rod 7.
[0029] Specifically, the length and width of the threaded block 8 are equal to the length and width inside the connecting frame 3, and the threaded block 8 is slidably connected between the inner left side wall and the inner right side wall of the connecting frame 3.
[0030] It should be noted that this structure can effectively restrict the degree of freedom of the threaded block 8 in the horizontal direction.
[0031] Specifically, lifting ports adapted to the connecting block 9 are opened on both the left and right sides inside the connecting frame 3, and the connecting block 9 is slidably connected to the inner side of the corresponding lifting port.
[0032] It should be noted that this design not only provides a movement channel for the connecting block 9, ensuring that the connecting block 9 can slide smoothly in the lifting port as the threaded block 8 moves up and down, but also limits the connecting block 9 to prevent it from shifting left or right during movement.
[0033] Specifically, four elastic support members 12 are respectively arranged at the four corners of the top of the fixed plate 11.
[0034] It should be noted that this layout improves the support stability of the elastic support member 12 for the mounting plate 13 and the receiver 14.
[0035] The working principle of the above embodiments is as follows:
[0036] Move the floor slab thickness gauge to a suitable position below the floor slab to be tested using the moving wheels at the bottom of the base plate 1, and install the transmitter 16 at the corresponding position above the floor slab. Turn on the power and start the servo motor 4. Servo motor 4 starts working, and its output shaft drives transmission gear 5 to rotate. Since transmission gear 5 and driven gear 6 are bevel gears and mesh with each other, the rotation of transmission gear 5 will drive driven gear 6 to rotate synchronously. A threaded rod 7 is fixedly connected to the inner side of the center of driven gear 6. The rotation of driven gear 6 causes threaded rod 7 to rotate accordingly. When threaded rod 7 rotates, threaded block 8, which is threadedly connected to threaded rod 7, cannot rotate with threaded rod 7 due to the limiting effect of the inner wall of connecting frame 3 and lifting port on connecting block 9. It can only move linearly on threaded rod 7, causing threaded block 8 to drive connecting block 9, connecting plate 10, fixing plate 11 and receiver 14 on mounting plate 13 to move upward, gradually approaching the floor slab. Through elastic support member 12, receiver 14 is made to make close contact with the floor slab. At this time, the signal emitted by transmitter 16 can be accurately received by receiver 14. Receiver 14 transmits the received signal to the relevant data processing system. By analyzing parameters such as signal propagation time and intensity, combined with the known signal propagation speed, the thickness of the floor slab can be calculated.
[0037] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.
[0038] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0039] 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.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A floor slab thickness gauge for engineering quality inspection, comprising a base plate (1), a support (2) fixedly connected to the top of the base plate (1), and a connecting frame (3) fixedly connected to the top of the support (2), characterized in that: The inner side of the support (2) is provided with a detection component for detection; The detection assembly includes a motor (4) fixedly connected to the inner bottom wall of the support (2). The output shaft of the motor (4) is fixedly connected to a transmission gear (5). A driven gear (6) meshes with the bottom of the transmission gear (5). A threaded rod (7) is fixedly connected to the inner side of the center of the driven gear (6). A threaded block (8) is threadedly connected to the outer side of the threaded rod (7). Connecting blocks (9) are fixedly connected to both the left and right sides of the threaded block (8). A connecting block (9) is fixedly connected to the opposite side of the connecting blocks (9) on both the left and right sides. A connecting plate (10) is fixedly connected to the top of the connecting plate (10) on the left and right sides. A fixing plate (11) is fixedly connected to the top of the fixing plate (11) with four elastic support members (12). An mounting plate (13) is fixedly connected to the top of the four elastic support members (12). A receiver (14) is fixedly connected to the top of the mounting plate (13). A placement box (15) is fixedly connected to the top of the support (2). A transmitter (16) is placed inside the placement box (15).
2. The floor slab thickness gauge for engineering quality inspection according to claim 1, characterized in that: The four corners of the bottom of the base plate (1) are fixedly connected to movable wheels, and the front of the support (2) is hinged with a motor maintenance door.
3. The floor slab thickness gauge for engineering quality inspection according to claim 1, characterized in that: The motor (4) is a servo motor, and the transmission gear (5) and the driven gear (6) are both bevel gears.
4. The floor slab thickness gauge for engineering quality inspection according to claim 1, characterized in that: The bottom end of the threaded rod (7) is rotatably connected to the inner bottom wall of the support (2), and the top end of the threaded rod (7) passes through the inner top wall of the support (2), the bottom of the connecting frame (3), and the threaded groove of the threaded block (8) in sequence, and is rotatably connected to the inner top wall of the connecting frame (3).
5. A floor slab thickness gauge for engineering quality inspection according to claim 1, characterized in that: The length and width of the threaded block (8) are equal to the length and width inside the connecting frame (3), and the threaded block (8) is slidably connected between the inner left side wall and the inner right side wall of the connecting frame (3).
6. A floor slab thickness gauge for engineering quality inspection according to claim 1, characterized in that: The connecting frame (3) has lifting ports on both the left and right sides that are adapted to the connecting block (9), and the connecting block (9) is slidably connected to the inner side of the corresponding lifting port.
7. A floor slab thickness gauge for engineering quality inspection according to claim 1, characterized in that: The four elastic support members (12) are respectively arranged at the four corners of the top of the fixed plate (11).