Intelligent digital flatness and perpendicularity measurement tool

Abstract

The application relates to the technical field of measurement, and discloses a smart digital flatness and perpendicularity measuring tool, which comprises a measuring main body, a digital display module, a wireless communication module, a power module, a three-axis acceleration sensor arranged in the measuring main body, a moving sliding groove arranged on the side wall of the measuring main body, and a movable laser displacement sensor arranged in the moving sliding groove, wherein the three-axis acceleration sensor is used for measuring the perpendicularity, and the laser displacement sensor is used for measuring the flatness; when the flatness and the perpendicularity need to be measured, a construction worker sticks the measuring main body to a wall surface, then the laser displacement sensor slides along the moving sliding groove of the measuring main body to measure the flatness in front, meanwhile, the three-axis acceleration sensor starts to work to measure the perpendicularity in front, and after the measurement is completed, the data of the flatness and the perpendicularity of the wall surface are displayed on the digital display module, so that the detection efficiency of the flatness and the perpendicularity and the accuracy of the data are improved.

Description

Technical Field

[0001] This invention relates to the field of measurement technology, and more specifically to an intelligent digital flatness and perpendicularity measurement tool. Background Technology

[0002] Flatness and verticality are important indicators for measuring the surface quality of an object, and they are widely used in industrial production, building construction, equipment installation and other fields. In building construction, the flatness and verticality of walls, floors and columns are key factors in evaluating the quality of the project. In equipment installation, the flatness and verticality of the equipment foundation play a decisive role in the operational stability of the equipment. On existing construction sites, a spirit level is usually used to measure parallelism and a straightedge is used to measure verticality.

[0003] For example, patent CN221445127U, published on July 30, 2024, discloses a level for building inspection, relating to the field of building inspection. It includes a level body with mounting grooves on both the left and right sides of the body and a second mounting groove in the middle. A fixing component is movably installed inside the first mounting groove, and a fixing component is movably installed inside the second mounting groove. A grip opening is located below the second mounting groove, and a protective component is movably installed inside the level body. By using fixing components one and two located inside the first and second mounting grooves, the level body can be disassembled along its interior. Different level tubes are installed inside fixing components one and two, allowing for easy disassembly and replacement of damaged level tubes during use. This method is tool-free, simple to operate, and more convenient to use.

[0004] Existing bubble levels have low accuracy and are not sensitive enough to bubble movement, making it difficult to detect minute tilts. When a slight tilt occurs, users need good visual judgment, resulting in highly subjective data. Furthermore, data can only be read after the bubble has stabilized. After measuring verticality with a straightedge, staff also need to use a feeler gauge to measure the gap size, leading to low detection efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent digital flatness and verticality measurement tool to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The intelligent digital flatness and perpendicularity measurement tool includes the measurement body and also includes:

[0008] A digital display module that displays measurement data;

[0009] The wireless communication module that transmits measurement data

[0010] Power supply module for power supply;

[0011] A triaxial accelerometer is installed inside the measuring body; the triaxial accelerometer is used to measure perpendicularity.

[0012] A movable slide is provided on the side wall of the measuring body, and a movable laser displacement sensor is installed in the slide. The laser displacement sensor is used to measure flatness.

[0013] As described above, the movable slide is equipped with a movable guide rail and a drive assembly, which drives the laser displacement sensor to slide along the movable guide rail.

[0014] The aforementioned drive assembly includes a stepper motor, a lead screw, and a movable slide. The output end of the stepper motor is connected to the lead screw, and the stepper motor is used to drive the lead screw to rotate. A movable slide is provided on the lead screw, and the movable slide slides along the movable guide rail based on the rotation of the lead screw. The laser displacement sensor is fixedly installed on the movable slide.

[0015] As mentioned above, a protective component is also provided inside the movable slide, which is used to protect the lens of the laser displacement sensor.

[0016] The aforementioned protective component includes a shielding part and a triggering part. The shielding part is used to close the moving slide. The shielding part includes two shielding plates, both of which are rotatably mounted on the measuring body. The rotatable shaft is connected to the measuring body by a torsion spring.

[0017] As described above, when the torsion spring is not under force, the two baffles are parallel and aligned with each other to close the moving slide. When the measuring body is pressed against the wall, the trigger is triggered by the pressure of the wall. The trigger drives the rotating shaft to rotate, and the two baffles rotate to open the moving slide.

[0018] The triggering unit described above includes multiple trigger push rods, with two trigger push rods forming a group. Each group of trigger push rods corresponds to a baffle plate. The two trigger push rods in the group are placed on both sides of the baffle plate. The trigger push rods are slidably mounted on the measuring body. One end of the trigger push rod extends into the movable slide groove. The end of the trigger push rod near the wall is covered with a rubber sleeve. A drive rack is installed at the end of the trigger push rod located in the movable slide groove. A meshing rotating gear is provided on the outer side of the drive rack. The rotating gear is fixedly mounted on the rotating shaft. The end of the drive rack away from the trigger push rod is connected to the measuring body through a return spring.

[0019] The aforementioned movable guide rail includes a movable section, a connecting section, and a fixed section. One end of the connecting section is rotatably connected to the movable section, and the other end of the connecting section is rotatably connected to the fixed section. The movable section is slidably installed in the movable slide groove, and a connecting rod is provided on the drive rack near the movable section. The other end of the connecting rod is connected to the movable section.

[0020] As mentioned above, a sponge pad should be provided in the area where the movable slide rail contacts the lens of the laser displacement sensor.

[0021] As mentioned above, there are two measuring bodies, and the ends of the two measuring bodies are rotatably connected. One of the measuring bodies is equipped with a buckle.

[0022] The beneficial effects of this invention are as follows: In the above technical solution, the intelligent digital flatness and verticality measuring tool provided by this invention allows construction workers to place the measuring body against the wall when it is necessary to measure verticality and horizontality. Subsequently, the laser displacement sensor slides along the moving groove of the measuring body to measure the flatness in front, while the triaxial accelerometer starts working to measure the verticality in front. After the flatness and verticality measurements are completed, the flatness and verticality data of the wall are displayed on the digital display module, improving the detection efficiency of flatness and verticality and the accuracy of the detection data. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 Information architecture diagram of the intelligent digital flatness and verticality measurement tool provided in the embodiments of the present invention;

[0025] Figure 2 A schematic diagram of the structure of the intelligent digital flatness and perpendicularity measuring tool provided in an embodiment of the present invention;

[0026] Figure 3 A side view of the intelligent digital flatness and perpendicularity measuring tool provided in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram showing the state of the shielding part after it is opened, according to an embodiment of the present invention.

[0028] Figure 5 Provided for embodiments of the present invention Figure 4 A schematic diagram of the cross-section of AA;

[0029] Figure 6This is a schematic diagram showing the state of the laser displacement sensor against the sponge pad provided in an embodiment of the present invention;

[0030] Figure 7 Provided for embodiments of the present invention Figure 6 A schematic diagram of the cross-section of BB.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Measuring body; 11. Moving slide; 12. Moving guide rail; 121. Moving section; 122. Connecting section; 123. Fixed section; 124. Connecting rod; 13. Drive assembly; 131. Stepper motor; 132. Lead screw; 133. Moving slide; 14. Sponge pad; 2. Digital display module; 3. Wireless communication module; 4. Power module; 5. Three-axis accelerometer; 6. Laser displacement sensor; 7. Protective assembly; 71. Shielding part; 711. Shielding plate; 712. Rotating shaft; 72. Triggering part; 721. Trigger push rod; 722. Rubber sleeve; 723. Drive rack; 724. Rotating gear; 725. Return spring; 8. Buckle. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1-7 The present invention will be described in further detail below.

[0034] This invention provides an intelligent digital flatness and verticality measurement tool, including a measurement body 1, a digital display module 2 for displaying measurement data, a wireless communication module 3 for transmitting measurement data, a power supply module 4 for power supply, a triaxial accelerometer 5 disposed inside the measurement body 1 for measuring verticality, and a movable slide groove 11 provided on the side wall of the measurement body 1, within which a movable laser displacement sensor 6 is disposed for measuring flatness.

[0035] Specifically, the measuring body 1 is long and narrow, resembling a straightedge. It is equipped with a level tube (usually a semi-transparent or transparent glass tube containing liquid and an air bubble; this air bubble moves within the liquid to indicate horizontality). When measuring the flatness or verticality of a wall, the operator places the measuring body 1 against the wall, effectively placing it against the wall like a straightedge. The operator then uses a feeler gauge inserted into the gap between the measuring body 1 and the wall to measure verticality. The measurement is then performed by observing the air bubble inside the level tube on the measuring body 1.

[0036] Clearly, the existing bubble levels have low accuracy, typically around 0.5 mm / m. For projects requiring high precision, the data measured by bubble levels is insufficient to support construction workers' control over project quality. Furthermore, the movement of the bubble in the bubble level is not sensitive enough, making it difficult to detect minute tilts. When a slight tilt occurs, the user needs good visual judgment, resulting in highly subjective data. Moreover, data can only be read after the bubble has stabilized, leading to low detection efficiency and impacting construction efficiency.

[0037] To solve the above problems, the measuring body 1 is equipped with a digital display module 2 for displaying measurement data, a wireless communication module 3 for transmitting measurement data, and a power supply module 4 for power supply; a triaxial accelerometer 5 is installed inside the measuring body 1, which is used to measure verticality; a movable slide groove 11 is opened on the side wall of the measuring body 1, and a movable laser displacement sensor 6 is installed inside the movable slide groove 11, which is used to measure flatness.

[0038] Specifically, the flatness is measured by scanning along a straight line using a laser displacement sensor 6, which measures the undulations of the entire target area. This not only measures flatness deviations but also records the magnitude of the undulations at each corresponding point, achieving more precise flatness measurement. The laser displacement sensor 6 uses triangulation, also known as optical triangulation, a commonly used non-contact measurement technique. Based on the principle of triangulation, it calculates the flatness by measuring the angle change after the laser pulse is reflected from the target object. This method is highly accurate, fast, and adaptable to various environments and conditions. The laser beam is focused and forms a bright spot on the target object. As this bright spot moves across the object's surface, its position on the photosensitive element changes accordingly. This change can be detected and recorded using a photosensitive element (such as a CCD or CMOS). Specifically, light emitted from a laser source shines on a target object, then reflects back and passes through a lens designed to focus all the light from the target object onto the photosensitive element. When we change the distance between the target object and the laser source, the angle of incidence of the reflected light changes because the focal length of the lens (i.e., the distance from the focal point of the beam to the photosensitive element) remains constant. This causes the position where the reflected light is focused on the photosensitive element to change. By measuring this positional change, the distance to the target object can be calculated. The key here is to accurately measure the position of the reflected light on the photosensitive element. To increase the accuracy of the measurement, sub-pixel-level calculations are often used. To determine the center position of the light spot, this calculation method utilizes the intensity distribution characteristics of the light spot, i.e., the brightness is highest at the center and gradually decreases outwards. By fitting this brightness distribution model, the center position of the light spot can be accurately calculated, thereby improving the accuracy of the measurement; A triaxial accelerometer 5 is a sensor that detects the motion state of an object by measuring its acceleration along three coordinate axes; a triaxial accelerometer 5 is typically made of a tiny chip using microelectromechanical systems (MEMS) technology. Internally, the triaxial accelerometer 5 contains a tiny oscillating structure that generates a voltage difference in response to external forces; the triaxial accelerometer 5 utilizes the basic principle of Newton's laws: the acceleration of an object is directly proportional to the force acting upon it and inversely proportional to its mass; triaxial accelerometer... The tiny oscillating structure inside the triaxial accelerometer 5 can sense the motion state of an object. The charge output is related to the motion state. Therefore, when the object is subjected to an external force, the oscillating structure in the triaxial accelerometer 5 will produce a tiny offset, which will change the output signal. The triaxial accelerometer 5 has the characteristics of easy assembly, extremely small size and low power consumption. By accurately measuring acceleration in three directions, they can provide very accurate position and motion state information. The digital display module 2 includes a display screen, which is communicatively connected to the triaxial accelerometer 5 and the laser displacement sensor 6. When the laser displacement sensor 6 detects flatness and the triaxial accelerometer 5 detects perpendicularity, the detected flatness and perpendicularity values ​​are displayed on the display screen.The wireless communication module 3 enables communication with a mobile app via Bluetooth. When the triaxial accelerometer 5 and laser displacement sensor 6 measure flatness and verticality respectively, the wireless communication module 3 transmits the measured data to the mobile app for data storage, facilitating subsequent data retrieval and preventing data recording errors or loss. The power module 4 uses a lithium battery with a protection board to provide power to both the wireless communication module 3 and the digital display module 2. When verticality and horizontality measurements are required, the construction worker places the measuring body 1 against the wall. The laser displacement sensor 6 then slides along the sliding groove 11 of the measuring body 1 to measure the flatness. Simultaneously, the triaxial accelerometer 5 starts working to measure the verticality. After the flatness and verticality measurements are completed, the wall flatness and verticality data are displayed on the digital display module 2. Furthermore, the wireless communication module 3 sends the measured flatness and verticality data to the mobile app for data storage, thus realizing the measurement and processing of wall verticality and flatness.

[0039] Preferably, the movable slide 11 is provided with a movable guide rail 12 and a drive assembly 13. The drive assembly 13 drives the laser displacement sensor 6 to slide along the movable guide rail 12. The drive assembly 13 is mounted on the movable guide rail 12 and includes a stepper motor 131, a lead screw 132 and a movable slide 133. The output end of the stepper motor 131 is connected to the lead screw 132 and is used to drive the lead screw 132 to rotate. The movable slide 133 is provided on the lead screw 132 and slides along the movable guide rail 12 based on the rotation of the lead screw 132. The laser displacement sensor 6 is fixedly mounted on the movable slide 133.

[0040] Specifically, in the initial state, the laser displacement sensor 6 is located at the end of the moving slide 11. When flatness measurement is required, the construction worker places the measuring body 1 against the wall, with the moving slide 11 on the measuring body 1 facing the wall. Then, the stepper motor 131 starts working, and the stepper motor 131 drives the lead screw 132 to rotate. As the lead screw 132 rotates, the moving slide 133 slides along the moving guide rail 12. The moving guide rail 12 moves synchronously with the laser displacement sensor 6. As the laser displacement sensor 6 moves, the flatness detection of the wall is completed. After the detection is completed, the stepper motor 131 rotates in the opposite direction, driving the lead screw 132 to rotate in the same direction. Thus, the moving slide 133 carries the laser displacement sensor 6 along the moving guide rail 12 to the initial position, waiting for the next flatness detection.

[0041] Obviously, since this equipment is usually used on construction sites, where there is a lot of dust and dirt, dust and dirt can easily adhere to the laser displacement sensor 6, obstructing or even blocking the laser beam. This can easily cause the sensor to fail to receive an effective reflected signal, affecting the accuracy of the measurement data.

[0042] To address the aforementioned issues, a protective component 7 is also provided within the movable slide 11. This component protects the lens of the laser displacement sensor 6, preventing dust and dirt from adhering to it. The protective component 7 includes a shielding part 71 and a triggering part 72. The shielding part 71 closes the movable slide 11 and comprises two shielding plates 711. Both shielding plates 711 are rotatably mounted on the measuring body 1 via a shaft 712. The shaft 712 and the measuring body 1 are connected by a torsion spring (not shown in the diagram). When the torsion spring is not under stress, the two shielding plates 711 are parallel and aligned, closing the movable slide 11. When the measuring body 1 rests against a wall, the triggering part 72 is activated by the pressure from the wall, causing the shaft 712 to rotate, and the two shielding plates 711 to rotate. The movable slide 11 is opened by moving the trigger part 72, which includes multiple trigger push rods 721. Two trigger push rods 721 form a group, and a group of trigger push rods 721 corresponds to a baffle plate 711. The two trigger push rods 721 in the group are placed on both sides of the baffle plate 711. The end of the trigger push rod 721 near the wall is covered with a rubber sleeve 722, and the other end of the trigger push rod 721 is equipped with a drive rack 723. The drive rack 723 is slidably installed on the measuring body 1. One end of the drive rack 723 extends into the movable slide 11. A meshing rotating gear 724 is provided on the outside of the drive rack 723 located in the movable slide 11. The rotating gear 724 is fixedly installed on the rotating shaft 712. The end of the drive rack 723 away from the trigger push rod 721 is connected to the measuring body 1 through a return spring 725.

[0043] Specifically, in the initial state, the torsion spring is unloaded. At this time, the two baffles 711 are parallel and aligned, blocking the moving slide 11 and preventing dust from the environment from entering the moving slide 11, thus obstructing the lens of the laser displacement sensor 6 and affecting the accuracy of the measurement data. When measurement is required, the construction worker presses the measuring body 1 against the wall. The trigger push rod 721 moves inward towards the measuring body 1 due to the reaction force from the wall. When the trigger push rod 721 moves, the return spring 725 contracts to accumulate elastic potential energy. Simultaneously, the trigger push rod 721 moves the drive rack 723. The drive rack 723 meshes with the rotating gear 724, which rotates under the action of the drive rack 723. The rotating gear 724 drives the rotating shaft 712 to rotate synchronously. The rotating shaft 712, carrying the baffles 711, rotates towards the inside of the moving slide 11, opening the moving slide 11. Subsequently... Stepper motor 131 starts working, driving lead screw 132 to rotate. As lead screw 132 rotates, moving slide 133 slides along moving guide rail 12. Moving guide rail 12 moves synchronously with laser displacement sensor 6. As laser displacement sensor 6 moves, the wall flatness detection is completed. After the wall flatness detection is completed, the construction personnel remove the measuring body 1 from the wall. Return spring 725 releases the accumulated elastic potential energy. Return spring 725 pushes drive rack 723, which in turn moves trigger push rod 721 towards the wall. As drive rack 723 meshes with rotating gear 724, rotating gear 724 drives shaft 712 to rotate in the opposite direction. The two baffles 711 return to a parallel and abutting state. At this time, moving slide 11 is closed again, protecting laser displacement sensor 6 inside moving slide 11 and preventing dust from falling on laser displacement sensor 6 and affecting the accuracy of laser displacement sensor 6 measurement.

[0044] Obviously, when measuring flatness, the shield 711 needs to be opened. At this time, the space inside the moving slide 11 is connected to the outside, and dust in the air can easily enter the interior of the moving slide 11 and then adhere to the laser displacement sensor 6, affecting the accuracy of the laser displacement sensor 6 when measuring data.

[0045] Preferably, in this embodiment, the movable guide rail 12 includes a movable section 121, a connecting section 122, and a fixed section 123. One end of the connecting section 122 is rotatably connected to the movable section 121, and the other end of the connecting section 122 is rotatably connected to the fixed section 123. The movable section 121 is slidably installed in the movable slide groove 11, and a connecting rod 124 is provided on the drive rack 723 near the movable section 121. The other end of the connecting rod 124 is connected to the movable section 121.

[0046] Specifically, the connecting section 122 is a telescopic structure. In the initial state, the moving section 121 and the fixed section 123 are spaced vertically. When flatness testing is required, the construction worker presses the measuring body 1 against the wall. The trigger push rod 721 moves inward into the measuring body 1 due to the reaction force from the wall. As the trigger push rod 721 moves, the return spring 725 contracts to accumulate elastic potential energy. It moves synchronously with the trigger push rod 721, which in turn moves the drive rack 723. As the drive rack 723 moves, the connecting rod 124 on the drive rack 723 moves the moving section 121. Synchronous movement occurs, simultaneously driving rack 723 to mesh with rotating gear 724. Rotating gear 724 rotates under the action of rack 723, causing rotating shaft 712 to rotate synchronously. Rotating shaft 712, carrying baffle plate 711, rotates towards the interior of moving slide 11, opening it. At this point, moving section 121, connecting section 122, and fixed section 123 are aligned in a straight line. Then, stepper motor 131 starts working, driving lead screw 132 to rotate. As lead screw 132 rotates, moving slide 1... 33 slides along the moving guide rail 12, which moves synchronously with the laser displacement sensor 6. As the laser displacement sensor 6 moves, the wall flatness detection is completed. After the wall flatness detection is completed, the stepper motor 131 rotates in the reverse direction. When the laser displacement sensor 6 returns to the moving section 121, the construction personnel remove the measuring body 1 from the wall. The return spring 725 releases the accumulated elastic potential energy, and the return spring 725 pushes the drive rack 723, which in turn moves the trigger push rod 721 towards the wall. As the drive rack 723 moves with the trigger push rod 721, the wall flatness detection is completed. The rotating gear 724 engages, causing the rotating shaft 712 to rotate in the opposite direction. The two baffles 711 return to a parallel and abutting state. Simultaneously, as the drive rack 723 moves, under the action of the connecting rod 124, the moving section 121, carrying the laser displacement sensor 6 and the drive assembly 13, moves in the opposite direction away from the fixed section 123, away from the moving guide rail 12. The lens of the laser displacement sensor 6 rests against the inner wall of the moving slide 11 to prevent dirt entering the moving slide 11 from drifting onto the laser displacement sensor 6 and affecting the accuracy of subsequent measurement data.

[0047] Preferably, to prevent the inner wall of the movable slide 11 from scratching the lens of the laser displacement sensor 6, a flexible layer such as a sponge pad 14 should be provided in the area where the movable slide 11 contacts the lens of the laser displacement sensor 6 to protect the lens; obviously, in order to increase the measurement length of the device, two measuring bodies 1 can be provided, with their ends rotatably connected, and one of the measuring bodies 1 is provided with a buckle 8. When the two measuring bodies 1 are unfolded and in a parallel state, the two measuring bodies 1 are fixed by the buckle 8, thereby increasing the measurement length of the device.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An intelligent digital flatness and verticality measuring tool, comprising a measuring body (1), characterized in that, Also includes: Digital display module (2) for displaying measurement data; The wireless communication module (3) transmits the measurement data. Power supply module (4) for power supply; A triaxial accelerometer (5) is installed inside the measuring body (1) and is used to measure perpendicularity; A movable slide (11) is provided on the side wall of the measuring body (1). A movable laser displacement sensor (6) is provided in the movable slide (11). The laser displacement sensor (6) is used to measure flatness. The movable slide (11) is also equipped with a protective component (7), which is used to protect the lens of the laser displacement sensor (6); The protective component (7) includes a shielding part (71) and a triggering part (72). The shielding part (71) is used to close the moving slide (11). The shielding part (71) includes two shielding plates (711). Both shielding plates (711) are rotatably mounted on the measuring body (1) by a rotating shaft (712). The rotating shaft (712) is connected to the measuring body (1) by a torsion spring. When the torsion spring is not under force, the two baffles (711) are parallel and aligned with each other to close the moving slide (11). When the measuring body (1) is against the wall, the trigger (72) is triggered by the pressure of the wall. The trigger (72) drives the rotating shaft (712) to rotate, and the two baffles (711) rotate to open the moving slide (11). In the initial state, the torsion spring is not under force. At this time, the two baffles (711) are parallel and aligned with each other. The two baffles (711) block the moving slide (11) and prevent dust in the environment from entering the moving slide (11).

2. The intelligent digital flatness and perpendicularity measuring tool according to claim 1, characterized in that, The movable slide (11) is provided with a movable guide rail (12) and a drive assembly (13), which drives the laser displacement sensor (6) to slide along the movable guide rail (12).

3. The intelligent digital flatness and perpendicularity measuring tool according to claim 2, characterized in that, The drive assembly (13) includes a stepper motor (131), a lead screw (132) and a movable slide (133). The output end of the stepper motor (131) is connected to the lead screw (132). The stepper motor (131) is used to drive the lead screw (132) to rotate. The movable slide (133) is provided on the lead screw (132). The movable slide (133) slides along the movable guide rail (12) based on the rotation of the lead screw (132). The laser displacement sensor (6) is fixedly installed on the movable slide (133).

4. The intelligent digital flatness and perpendicularity measuring tool according to claim 1, characterized in that, The triggering unit (72) includes multiple trigger push rods (721). Two trigger push rods (721) form a group. One group of trigger push rods (721) corresponds to a shield (711). Two trigger push rods (721) in the group are placed on both sides of the shield (711). One end of the trigger push rod (721) near the wall is wrapped with a rubber sleeve (722). The other end of the trigger push rod (721) is equipped with a drive rack (723). The drive rack (723) is slidably installed on the measuring body (1). One end of the drive rack (723) extends into the movable slide groove (11). A meshing rotating gear (724) is provided on the outside of the drive rack (723) located in the movable slide groove (11). The rotating gear (724) is fixedly installed on the rotating shaft (712). The end of the drive rack (723) away from the trigger push rod (721) is connected to the measuring body (1) through a return spring (725).

5. The intelligent digital flatness and perpendicularity measuring tool according to claim 4, characterized in that, The movable guide rail (12) includes a movable section (121), a connecting section (122) and a fixed section (123). One end of the connecting section (122) is rotatably connected to the movable section (121), and the other end of the connecting section (122) is rotatably connected to the fixed section (123). The movable section (121) is slidably installed in the movable slide groove (11), and a connecting rod (124) is provided on the drive rack (723) near the movable section (121). The other end of the connecting rod (124) is connected to the movable section (121).

6. The intelligent digital flatness and perpendicularity measuring tool according to claim 5, characterized in that, A sponge pad (14) should be provided in the area where the movable slide (11) contacts the lens of the laser displacement sensor (6).

7. The intelligent digital flatness and perpendicularity measuring tool according to claim 1, characterized in that, There are two measuring bodies (1), and the ends of the two measuring bodies (1) are rotatably connected. One of the measuring bodies (1) is provided with a buckle (8).

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