Grating type wall brick laser pay-off device

Abstract

The invention belongs to the technical field of building tools, and discloses a grating type wall brick laser pay-off device which comprises a supporting mechanism, an adjusting mechanism is installed on the supporting mechanism, an optical mechanism is installed on the adjusting mechanism, and the supporting mechanism is used for providing stable support for the whole device and can adjust the height of the optical mechanism. The adjusting mechanism is used for achieving horizontal calibration, vertical calibration and distance calibration with a to-be-constructed wall face on the optical mechanism, and the optical mechanism is used for conducting projection on the to-be-constructed wall face to form clear and straight wall brick laying reference grid lines with the uniform distance. Through the coaxial optical design of the laser, the five-time Galileo beam expanding lens, the DOE grating and the plano-convex lens and the multi-dimensional accurate calibration of the adjusting mechanism, it is ensured that wall tiles, floor tiles and suspended ceilings are accurately crossed and jointed, internal and external corners are straight, and the pain point that traditional paying-off precision is insufficient is solved.

Description

Technical Field

[0001] This invention relates to the field of building tools technology, and in particular to a grating-type laser line-laying device for wall bricks. Background Technology

[0002] Wall tiling is one of the core processes in building decoration and renovation, serving the dual purpose of beautifying the architectural space and protecting the wall surface. After tiling, the wall surface can effectively achieve stain resistance, waterproofing, wear resistance, and corrosion resistance. The quality of tiling directly affects the overall aesthetics, functionality, and lifespan of the building decoration. Wall tiling construction requires the sequential completion of wall base treatment, cement mortar mixing and application, tile laying, tamping with a rubber mallet, and flatness correction. Among these, the flatness, verticality, and uniformity of tile joints are the core quality control points. Moreover, the industry's requirements for decoration and renovation quality are constantly being upgraded, explicitly requiring that the wall tile layout achieve precise alignment with the floor tiles and ceiling tiles, with straight and unbiased corners, and uniform tile joints without misalignment or skewing.

[0003] The current method of marking lines for wall tiling mainly uses the traditional chalk line method. This method has many technical defects when working on vertical walls: First, the chalk line work requires at least two people to work together, which is difficult for a single person to complete. The operation process is cumbersome and laborious, resulting in low construction efficiency. Second, the wall base often has dust and ash, which can easily cause the chalk lines to bleed and become blurred after being marked, resulting in poor identification of the baseline and subsequent deviations in tiling. Third, the accuracy of manual chalk line marking depends entirely on the skill of the construction workers. Verticality and spacing errors are difficult to control, with a common deviation of 3-5mm, which cannot meet the requirements of high-standard construction for joint alignment. Fourth, when dealing with complex scenarios such as inside and outside corners and irregularly shaped walls, chalk line marking is difficult to form continuous and regular baselines, and its adaptability is extremely poor.

[0004] In some mid-to-high-end construction scenarios, simple laser levels are used to assist in setting out lines. However, these levels can only project a single horizontal or vertical laser line independently and cannot simultaneously generate the equally spaced grid lines required for tile laying. Construction workers still need to manually measure the spacing between tile joints and mark the tile positions. This not only fails to fundamentally improve the efficiency of setting out lines but also introduces secondary human error. Furthermore, simple laser levels lack precise distance calibration and angle fine-tuning structures, and long-distance projection is prone to issues such as beam dispersion and line skew, resulting in insufficient accuracy.

[0005] In summary, existing methods for laying out wall tiles generally suffer from technical problems such as insufficient precision, low efficiency, cumbersome operation, and poor adaptability, and cannot meet the high-standard construction requirements of the current building decoration and renovation industry.

[0006] Therefore, we propose a grating-type laser line-laying device for wall tiles. Summary of the Invention

[0007] The purpose of this invention is to provide a grating-type laser line-laying device for wall tiles, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0008] To achieve the above objectives, the main technical solutions adopted by the present invention include: A grating-type wall tile laser line-laying device includes a support mechanism, an adjustment mechanism mounted on the support mechanism, and an optical mechanism mounted on the adjustment mechanism; The support mechanism is used to provide stable support for the entire device and can adjust the height of the optical mechanism; The adjustment mechanism is used to perform horizontal calibration, vertical calibration, and distance calibration between the optical mechanism and the wall surface to be constructed. The optical mechanism is used to project clear, straight, and evenly spaced grid lines for bricklaying onto the wall surface to be constructed.

[0009] In a grating-type wall tile laser line-laying device according to the present invention, the optical mechanism includes a housing, and a laser, a 5x Galileo beam expander and a DOE grating are fixedly installed inside the housing. The 5x Galileo beam expander is disposed between the laser emitting end of the laser and the DOE grating. The laser is used to stabilize the initial laser beam; The five-fold Galilean beam expander is used to expand and shape the laser beam emitted by the laser. The DOE grating is a 5×5mm DOE grating. The DOE grating is used to diffract the expanded parallel laser beam, so that the single laser beam is quickly decomposed into multiple equally spaced parallel laser lines and vertical lines, forming the reference grid lines required for wall tile laying.

[0010] In a grating-type wall tile laser line-laying device according to the present invention, the optical mechanism further includes a plano-convex lens, which is disposed on the side of the DOE grating away from the five-fold Galilean beam expander. The plano-convex lens is used to focus and correct the optical path of the grid laser beam after diffraction by the DOE grating, eliminate the distortion generated during the long-distance projection of the laser beam, and optimize the straightness, clarity and edge sharpness of the laser line.

[0011] In a grating-type wall tile laser line-laying device according to the present invention, an infrared rangefinder is fixedly installed on the outer casing.

[0012] In a grating-type wall tile laser line-laying device according to the present invention, a power supply battery is fixedly installed on the housing, the power supply battery is electrically connected to the infrared rangefinder and the laser, and a control switch module is installed on the housing of the power supply battery. The control switch module includes a first button for controlling the start and stop of the laser and a second button for controlling the start and stop of the infrared rangefinder.

[0013] In a grating-type wall tile laser marking device according to the present invention, the adjusting mechanism includes a horizontal adjusting unit, the horizontal adjusting unit includes a lower mounting base and an upper mounting base, an adjusting member is provided between the lower mounting base and the upper mounting base, the adjusting member is provided in three sets, the three sets of adjusting members are distributed in a triangle, each set of adjusting members includes an upper threaded rod and a lower threaded rod, the upper end of the upper threaded rod is rotatably connected to a ball seat at the bottom of the upper mounting base through a ball head, the lower end of the lower threaded rod is rotatably connected to a ball seat at the top of the lower mounting base through a ball head, the upper end of the lower threaded rod is threaded with an internal threaded sleeve, and the upper end of the internal threaded sleeve is threaded with the lower end of the upper threaded rod.

[0014] In a grating-type laser line-laying device for wall tiles according to the present invention, the thread direction of the lower threaded rod is opposite to that of the upper threaded rod.

[0015] In a grating-type wall tile laser marking device according to the present invention, an embedded horizontal bubble is provided on the upper mounting base.

[0016] In a grating-type wall tile laser line-laying device according to the present invention, the adjustment mechanism further includes an R-axis manual rotation platform and an XY-axis manual displacement platform. The bottom of the R-axis manual rotation platform is fixedly mounted on the upper mounting base, and the bottom of the XY-axis manual displacement platform is fixedly mounted on the rotating end of the R-axis manual rotation platform. The outer shell is fixedly mounted on the slide of the XY-axis manual displacement platform.

[0017] In a grating-type wall tile laser marking device according to the present invention, the support mechanism is a telescopic adjustable tripod, the lower mounting base is fixedly installed on the mounting base on the top of the telescopic adjustable tripod, and the end of the telescopic tripod is fixedly installed with an anti-slip pad.

[0018] This invention has at least the following beneficial effects: Through the coaxial optical design of a 635nm laser, a five-fold Galilean beam expander, a DOE grating, and a plano-convex lens in the optical mechanism, as well as the multi-dimensional precise calibration of the adjustment mechanism in conjunction with the infrared rangefinder, the wall tiles and floor tiles, as well as the ceiling, are precisely aligned and the inside and outside corners are straight, thus solving the pain point of insufficient accuracy in traditional layout. The integrated design allows the device to be set up, calibrated and laid out by a single person without the need for multiple people. It replaces the cumbersome process of traditional ink line marking and the secondary marking of simple laser equipment, improving laying efficiency by more than 50% and reducing labor costs. The replaceable DOE grating is compatible with various tile sizes, the telescopic tripod is compatible with different construction heights, and it supports complex scenarios such as inside and outside corners, irregularly shaped walls, and walls with height differences. The power supply battery is compatible with working conditions without external power supply, and it is suitable for both indoor and outdoor construction. The triangularly distributed adjustment components and the tripod's anti-slip foot pads ensure stable support for the device, allowing it to withstand minor vibrations at the construction site. The core components are firmly fixed, and the optical elements are sealed inside the casing, providing strong dust and impact resistance, low failure rate, and low maintenance costs. The laser uses a safe 635nm visible light band, with moderate brightness that is not dazzling, ensuring the eye safety of construction workers; the control switch module independently controls the core components, making operation convenient. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the optical path of the present invention; Figure 4 This is a schematic diagram of the structure of the horizontal adjustment unit of the present invention; Figure 5 This is a schematic diagram illustrating the effect of using the present invention.

[0020] Explanation of icon numbers: 1. Supporting institutions; 2. Adjustment mechanism; 201. Horizontal adjustment unit; 2011. Lower mounting base; 2012. Internal threaded sleeve; 2013. Lower threaded rod; 2014. Upper threaded rod; 2015. Upper mounting base; 2016. Embedded level bubble; 202. R-axis manual rotary platform; 203. XY-axis manual displacement platform; 3. Optical mechanism; 301. Housing; 302. Laser; 303. 5x Galilean beam expander; 304. DOE grating; 305. Plano-convex lens; 306. Infrared rangefinder; 307. Power supply battery; 308. Control switch module. Detailed Implementation

[0021] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0022] Please refer to Figures 1 to 5 As shown, an embodiment of the present invention provides a grating-type wall tile laser line-laying device, including a support mechanism 1, an adjustment mechanism 2 installed on the support mechanism 1, and an optical mechanism 3 installed on the adjustment mechanism 2; The support mechanism 1 is used to provide stable support for the entire device and can adjust the height of the optical mechanism 3; The adjustment mechanism 2 is used to perform horizontal calibration, vertical calibration, and distance calibration between the optical mechanism 3 and the wall surface to be constructed. Optical mechanism 3 is used to project clear, straight, and evenly spaced grid lines for wall tile laying onto the wall surface to be constructed.

[0023] By adopting the above technical solution, the support mechanism 1 provides a stable installation foundation for the adjustment mechanism 2 and the optical mechanism 3, avoiding the impact of device shaking on the laying accuracy during construction. At the same time, through the height adjustment function of the support mechanism 1, the laying height of the optical mechanism 3 can be flexibly adjusted according to the height of the construction area and the operating habits of the construction personnel. The adjustment mechanism 2 ensures that the projection posture of the optical mechanism 3 meets the requirements through horizontal and vertical calibration, and ensures that the distance between the optical mechanism 3 and the wall to be constructed is within the reference range through spacing calibration, providing posture support for the accurate projection of the grid lines. The optical mechanism 3 generates and projects the reference grid lines based on optical principles, replacing the traditional manual stringing and marking, and realizing the rapid formation of the wall tile laying reference.

[0024] In this embodiment, the optical mechanism 3 includes a housing 301. Inside the housing 301, a laser 302, a 5x Galilean beam expander 303, and a DOE grating 304 are fixedly installed. The 5x Galilean beam expander 303 is disposed between the laser emitting end of the laser 302 and the DOE grating 304. Laser 302 is used to stabilize the initial laser beam emission; The 5x Galilean beam expander 303 is used to expand and shape the laser beam emitted by the laser 302; The DOE grating 304 is a 5×5mm DOE grating. The DOE grating 304 is used to diffract the expanded parallel laser beam, so that the single laser beam is quickly decomposed into multiple equally spaced parallel laser lines and vertical lines, forming the reference grid lines required for wall tile laying.

[0025] By adopting the above technical solution, the housing 301 provides a sealed and stable installation space for the laser 302, the 5x Galilean beam expander 303, and the DOE grating 304, avoiding the influence of dust and minor collisions on the optical components at the construction site; the laser 302 stably outputs the initial laser beam, providing a light source basis for grid line generation; the 5x Galilean beam expander 303 expands and shapes the initial laser beam, transforming the thin laser beam into a wide beam with high parallelism, improving the stability of long-distance laser projection; the DOE grating 304 uses the principle of diffraction to decompose the expanded parallel laser beam into equally spaced horizontal and vertical laser lines, directly forming a reference grid line adapted to tile laying, without the need for additional manual marking.

[0026] Laser 302 uses a 635nm wavelength laser with an emitted laser diameter of 1mm. In this embodiment, the optical mechanism 3 further includes a plano-convex lens 305, which is disposed on the side of the DOE grating 304 away from the five-fold Galilean beam expander 303. The plano-convex lens 305 is used to focus and correct the optical path of the grid laser beam after diffraction by the DOE grating 304, eliminate the distortion generated during the long-distance projection of the laser beam, and optimize the straightness, clarity and edge sharpness of the laser line.

[0027] By adopting the above technical solution, the plano-convex lens 305 is set on the laser emission side of the DOE grating 304 to receive the grid laser beam generated by diffraction. Utilizing the focusing and optical path correction characteristics of the plano-convex lens 305, the laser lines that may have slight divergence or distortion after diffraction are corrected, and the distortion caused by air refraction and optical path deviation during long-distance projection of the laser beam is offset, so that the laser lines finally projected onto the wall to be constructed remain straight, clear, and without blurred edges, thereby improving the recognition and positioning accuracy of the baseline.

[0028] The focal length of the plano-convex lens 305 is 1.67mm.

[0029] The laser 302, the five-fold Galilean beam expander 303, the DOE grating 304, and the plano-convex lens 305 are coaxially fixed on the optical bracket inside the support mechanism 1.

[0030] In this embodiment, the DOE grating 304 is detachably mounted on the optical bracket with screws. With this setting, the DOE grating 304 with the corresponding diffraction spacing can be quickly replaced according to the specifications of the tiles on site, adapting to various paving needs.

[0031] In this embodiment, an infrared rangefinder 306 is fixedly installed on the outer casing 301.

[0032] By adopting the above technical solution, the infrared rangefinder 306 is fixedly installed on the housing 301, so that the ranging reference is consistent with the laser projection reference of the optical mechanism 3, ensuring that the distance between the measuring device and the wall to be constructed truly reflects the laser projection distance; the infrared rangefinder 306 can detect the actual distance between the device and the wall in real time, providing accurate data support for the spacing calibration of the adjustment mechanism 2, avoiding errors in the spacing and size of the grid lines due to spacing deviation, ensuring the accuracy of the line laying, and the infrared rangefinder 306 is equipped with a display screen to display the ranging data in real time.

[0033] In this embodiment, a power supply battery 307 is fixedly installed on the housing 301. The power supply battery 307 is electrically connected to the infrared rangefinder 306 and the laser 302. A control switch module 308 is installed on the housing of the power supply battery 307. The control switch module 308 includes a first button for controlling the start and stop of the laser 302 and a second button for controlling the start and stop of the infrared rangefinder 306.

[0034] By adopting the above technical solution, the power supply battery 307 is fixed on the outer casing 301, realizing the integrated design of the power supply component and the optical mechanism 3, reducing cable connections, and improving the overall integrity and portability of the device; the power supply battery 307 provides stable power to the infrared rangefinder 306 and the laser 302, ensuring the continuous operation of the core power components; the first button and the second button of the control switch module 308 independently control the start and stop of the laser 302 and the infrared rangefinder 306, avoiding unnecessary energy consumption of the components, and at the same time facilitating flexible operation by construction personnel according to the work process, improving ease of use. The power supply battery 307 is a 12V rechargeable lithium battery with built-in overcharge, over-discharge, and overcurrent protection modules, a capacity of 5000mAh, and a battery life of ≥8 hours. The casing of the power supply battery 307 is equipped with a charging interface and a power indicator light.

[0035] In this embodiment, the adjustment mechanism 2 includes a horizontal adjustment unit 201, which includes a lower mounting base 2011 and an upper mounting base 2015. An adjustment component is provided between the lower mounting base 2011 and the upper mounting base 2015. There are three sets of adjustment components, which are arranged in a triangular pattern. Each set of adjustment components includes an upper threaded rod 2014 and a lower threaded rod 2013. The upper end of the upper threaded rod 2014 is rotatably connected to the ball seat at the bottom of the upper mounting base 2015 through a ball head. The lower end of the lower threaded rod 2013 is rotatably connected to the ball seat at the top of the lower mounting base 2011 through a ball head. The upper end of the lower threaded rod 2013 is threadedly fitted with an internal threaded sleeve 2012, and the upper end of the internal threaded sleeve 2012 is threadedly fitted onto the lower end of the upper threaded rod 2014.

[0036] By adopting the above technical solution, the lower mounting base 2011 of the horizontal adjustment unit 201 provides the installation foundation for the entire adjustment mechanism 2, and the upper mounting base 2015 is used to support the subsequent adjustment components and optical mechanism 3; the three sets of adjustment components distributed in a triangle utilize the statically determinate structural characteristics of a triangle to ensure the support stability of the upper mounting base 2015 and avoid shaking or displacement during the adjustment process; the upper threaded rod 2014 is connected to the ball seat at the bottom of the upper mounting base 2015, and the lower threaded rod 2013 is connected to the ball seat at the top of the lower mounting base 2011 through ball joint rotation, providing freedom for fine adjustment of the angle of the threaded rod; by rotating the internal threaded sleeve 2012, the upper threaded rod 2014 and the lower threaded rod 2013 can be driven to move closer or further away, realizing the change of the length of the adjustment component, thereby adjusting the horizontal attitude of the upper mounting base 2015 and completing the horizontal calibration of the device.

[0037] The thread direction of the lower thread rod 2013 is opposite to that of the upper thread rod 2014.

[0038] By adopting the above technical solution, the lower threaded rod 2013 and the upper threaded rod 2014 adopt opposite thread directions. When the internal threaded sleeve 2012 is rotated, the lower threaded rod 2013 and the upper threaded rod 2014 will produce displacements in opposite directions along the axial direction of the internal threaded sleeve 2012, that is, they will move closer to or further away from the internal threaded sleeve 2012 at the same time, making the horizontal adjustment operation more convenient and efficient and shortening the device calibration time.

[0039] In this embodiment, an embedded horizontal bubble 2016 is provided on the upper mounting base 2015.

[0040] By adopting the above technical solution, the embedded bubble level 2016 is integrated on the upper mounting base 2015, ensuring that the bubble level and the upper mounting base 2015 maintain the same horizontal orientation, providing an intuitive basis for horizontal calibration. When the construction personnel rotate the internal threaded sleeve 2012 to adjust the length of the adjusting component, they can observe the position change of the bubble in the embedded bubble level 2016 in real time. When the bubble is centered, it can be determined that the upper mounting base 2015 is in a horizontal state, without the need for additional external level detection tools, simplifying the horizontal calibration operation process and improving the convenience and accuracy of calibration.

[0041] In this embodiment, the adjustment mechanism 2 further includes an R-axis manual rotation platform 202 and an XY-axis manual displacement platform 203. The bottom of the R-axis manual rotation platform 202 is fixedly mounted on the upper mounting base 2015, and the bottom of the XY-axis manual displacement platform 203 is fixedly mounted on the rotating end of the R-axis manual rotation platform 202. The outer shell 301 is fixedly mounted on the slide of the XY-axis manual displacement platform 203.

[0042] By adopting the above technical solution, the R-axis manual rotation platform 202 is fixed on the upper mounting base 2015 and can rotate 360° around the R-axis, driving the XY-axis manual displacement platform 203 and the optical mechanism 3 above to rotate synchronously, realizing the fine adjustment of the projection angle of the optical mechanism 3, thereby completing the vertical calibration of the device with the wall to be constructed, and ensuring the verticality of the laser vertical line; the XY-axis manual displacement platform 203 supports the R-axis manual rotation platform 202 and the optical mechanism 3, and its slides in the X and Y directions can realize left and right and up and down displacement adjustment respectively, which is used to fine adjust the projection position of the optical mechanism 3, so that the reference edge of the grid laser line is precisely aligned with the reference line of the ground, ceiling or inside and outside corner, and the spacing calibration and position calibration are completed.

[0043] Among them, the R-axis manual rotary platform 202 is selected from the RS rotary displacement platform, and the XY two-axis manual displacement platform 203 is selected from the LY series XY axis displacement platform of Nisston.

[0044] In this embodiment, the support mechanism 1 is a telescopic and adjustable tripod. The lower mounting base 2011 is fixedly installed on the mounting base on the top of the telescopic and adjustable tripod, and the end of the telescopic tripod is fixedly installed with an anti-slip pad.

[0045] By adopting the above technical solution, the telescopic adjustable tripod serves as the support mechanism 1. Its telescopic characteristics enable flexible adjustment of the overall height of the device, adapting to different construction heights and operating scenarios. The lower mounting base 2011 is fixed on the mounting base at the top of the tripod, ensuring a firm connection between the adjustment mechanism 2 and the support mechanism 1, and preventing relative displacement during construction. The anti-slip pads at the ends of the tripod increase the friction with the ground, effectively preventing the device from sliding or tipping over due to slight vibrations, smooth ground, or other factors at the construction site, thus providing a stable and reliable support foundation for the entire device.

[0046] Working principle: Preparatory work stage 1. Support and Fixation: Deploy the telescopic and adjustable tripod of support mechanism 1. Adjust the tripod length according to the operating height of the construction personnel. Place the device 2000mm in front of the reference position on the wall to be constructed, ensuring that the center of the device is aligned with the center of the wall area to be paved. Fully extend the tripod legs and firmly press the anti-slip pads at the ends of the legs to prevent the device from shaking or shifting during construction, laying the foundation for overall stability.

[0047] 2. Horizontal Calibration: Adjust the internal threaded sleeve 2012 of the horizontal adjustment unit 201 in the adjustment mechanism 2, and observe the embedded level bubble 2016 on the upper mounting base 2015 until the level bubble is centered, so that the entire device is in a horizontal state. The horizontality error is strictly controlled within 0.1° to provide attitude assurance for accurate laser projection.

[0048] 3. Initial vertical adjustment: The adjustment handle of the R-axis manual rotation platform 202 in the rotation adjustment mechanism 2 is used to fine-tune the overall projection angle of the device, so that the optical path direction of the optical mechanism 3 is perpendicular to the wall surface to be constructed, and the initial calibration of the projection posture is completed.

[0049] 4. Spacing Calibration: Press the second button on the control switch module 308 to activate the infrared rangefinder 306 of the optical mechanism 3, and read the actual distance between the device and the wall in real time. The allowable deviation for this distance is ±2mm. If the actual distance exceeds the deviation range, adjust the forward and backward adjustment positions of the XY-axis manual displacement platform 203 in the adjustment mechanism 2 to fine-tune the overall forward and backward position of the device until the distance displayed by the infrared rangefinder 306 meets the 2000mm reference requirement, thus completing the precise spacing calibration.

[0050] 5. Inspection: Wipe the surfaces of the laser 302, the 5x Galilean beam expander 303, the DOE grating 304, and the plano-convex lens 305 of the optical mechanism 3 with a lint-free cloth to ensure they are free of stains, dust, and obstructions. Check the tightness of each component connection, confirm sufficient power through the power display module of the power supply battery 307, test the normal response of the control switch module 308, turn off the infrared rangefinder 306, and complete all preparations before laying out the cable.

[0051] Second formal work phase 1. Laser Start-up: Press the first button on the control switch module 308 to start the laser 302 of the optical mechanism 3. The laser 302 stably emits a laser beam with an initial spot diameter of 1mm. The beam is in the visible light band with moderate brightness, which is easily identifiable under both natural light and artificial light at the construction site and will not cause eye irritation to construction personnel.

[0052] 2. Beam Expanding: The laser beam first enters the 5x Galilean beam expander 303, located in the optical mechanism 3 between the laser emitter 302 and the DOE grating 304, along the coaxial optical path. After being shaped by the 5x Galilean beam expander 303, the original 1mm diameter laser beam is transformed into a 5mm diameter parallel beam, effectively improving the stability of long-distance laser projection and avoiding problems such as beam divergence and line widening / blurring.

[0053] 3. Grid Generation: A parallel laser beam enters the 5×5mm DOE grating 304 of the optical mechanism 3. Through grating diffraction, the single laser beam is rapidly decomposed into multiple equally spaced parallel laser lines and vertical lines, forming the reference grid lines required for wall tile laying. The grid line spacing matches the parameters of the pre-installed DOE grating 304, accurately corresponding to the tile specifications and standard tile joint spacing.

[0054] 4. Focusing Correction: The diffracted grid laser beam continues to travel along the coaxial optical path into the plano-convex lens 305 located on the side of the DOE grating 304 away from the 5x Galilean beam expander 303 in the optical mechanism 3. After focusing and optical path correction by the plano-convex lens 305, the straightness, clarity, and edge sharpness of the laser line are optimized, completely eliminating the distortion caused by long-distance beam projection, ensuring that the laser line projected onto the wall is free of bending, blurring, and ghosting, with extremely high recognition.

[0055] 5. Baseline Alignment: Adjust the up and down and left and right adjustment knobs of the XY two-axis manual displacement platform 203 in the fine adjustment mechanism 2 to precisely adjust the projection position of the light path, so that the horizontal reference edge of the laser grid line on the wall is precisely aligned with the reference line of the ground tile, and the vertical reference edge is aligned with the reference line of the wall corner or the ceiling reference line, without offset or misalignment, thus completing the baseline calibration.

[0056] 6. Accuracy Verification: Fine-tune the R-axis manual rotation platform 202 of the adjustment mechanism 2 again, and verify the accuracy with the on-site verticality detection tool to ensure that the verticality error of the laser vertical line is less than 0.2° and the horizontality error of the laser horizontal line is less than 0.1°, which fully meets the high standard construction accuracy requirements.

[0057] 7. Continuous Laying Out: After calibration, construction workers can directly lay wall tiles according to the laser grid lines on the wall without additional measurement markings. The power supply battery 307 of the optical mechanism 3 provides a continuous and stable power supply, ensuring that the device can work continuously for no less than 8 hours, meeting the daily laying out needs of a single area.

[0058] 8. Process Control and Finishing: Every 30 minutes during construction, the infrared rangefinder 306 can be activated by pressing the second button on the control switch module 308 to recheck the distance between the device and the wall. If a slight deviation occurs, it can be quickly fine-tuned and calibrated using the XY-axis manual displacement platform 203, the R-axis manual rotation platform 202, or the horizontal adjustment unit 201 of the adjustment mechanism 2 to ensure that the layout accuracy remains up to standard. After the single area is completed, turn off the corresponding button on the control switch module 308, clean the dust from the surface of the optical components of the optical mechanism 3 with a lint-free cloth, retract the telescopic adjustable tripod of the support mechanism 1, store the device in the protective box, and transfer it to the next construction area.

[0059] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept by means of the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A grating-type wall tile laser marking device, characterized in that, It includes a support mechanism (1), an adjustment mechanism (2) is mounted on the support mechanism (1), and an optical mechanism (3) is mounted on the adjustment mechanism (2). The support mechanism (1) is used to provide stable support for the whole device and can adjust the height of the optical mechanism (3); The adjustment mechanism (2) is used to perform horizontal calibration, vertical calibration and spacing calibration between the optical mechanism (3) and the wall surface to be constructed. The optical mechanism (3) is used to project clear, straight, and evenly spaced grid lines for bricklaying onto the wall surface to be constructed.

2. The grating-type wall tile laser marking device according to claim 1, characterized in that: The optical mechanism (3) includes a housing (301), inside which a laser (302), a five-fold Galilean beam expander (303) and a DOE grating (304) are fixedly installed. The five-fold Galilean beam expander (303) is disposed between the laser emitting end of the laser (302) and the DOE grating (304). The laser (302) is used to stabilize the initial laser beam; The five-fold Galilean beam expander (303) is used to expand and shape the laser beam emitted by the laser (302); The DOE grating (304) is a 5×5mm DOE grating. The DOE grating (304) is used to diffract the expanded parallel laser beam, so that the single laser beam is quickly decomposed into multiple equally spaced parallel laser lines and vertical lines to form the reference grid lines required for wall tile laying.

3. The grating-type laser line-laying device for wall tiles according to claim 2, characterized in that: The optical mechanism (3) further includes a plano-convex lens (305), which is disposed on the side of the DOE grating (304) away from the five-fold Galilean beam expander (303). The plano-convex lens (305) is used to focus and correct the optical path of the grid laser beam after diffraction by the DOE grating (304), eliminate the distortion generated during the long-distance projection of the laser beam, and optimize the straightness, clarity and edge sharpness of the laser line.

4. The grating-type wall tile laser marking device according to claim 2, characterized in that: An infrared rangefinder (306) is fixedly installed on the outer casing (301).

5. The grating-type wall tile laser marking device according to claim 4, characterized in that: A power supply battery (307) is fixedly installed on the housing (301). The power supply battery (307) is electrically connected to the infrared rangefinder (306) and the laser (302). A control switch module (308) is installed on the housing of the power supply battery (307). The control switch module (308) includes a first button for controlling the start and stop of the laser (302) and a second button for controlling the start and stop of the infrared rangefinder (306).

6. The grating-type wall tile laser marking device according to claim 2, characterized in that: The adjustment mechanism (2) includes a horizontal adjustment unit (201), which includes a lower mounting base (2011) and an upper mounting base (2015). An adjustment component is provided between the lower mounting base (2011) and the upper mounting base (2015). The adjustment component is provided in three sets, which are arranged in a triangular pattern. Each of the three sets of adjustment components includes an upper threaded rod (2014) and a lower threaded rod (2013). The upper end of the upper threaded rod (2014) is rotatably connected to the ball seat at the bottom of the upper mounting base (2015) through a ball head. The lower end of the lower threaded rod (2013) is rotatably connected to the ball seat at the top of the lower mounting base (2011) through a ball head. The upper end of the lower threaded rod (2013) is threaded with an internal threaded sleeve (2012), and the upper end of the internal threaded sleeve (2012) is threaded with the lower end of the upper threaded rod (2014).

7. The grating-type laser line-laying device for wall tiles according to claim 6, characterized in that: The thread direction of the lower threaded rod (2013) is opposite to that of the upper threaded rod (2014).

8. The grating-type wall tile laser marking device according to claim 6, characterized in that: An embedded level bubble (2016) is provided on the upper mounting base (2015).

9. A grating-type laser line-laying device for wall tiles according to claim 6, characterized in that: The adjustment mechanism (2) further includes an R-axis manual rotation platform (202) and an XY-axis manual displacement platform (203). The bottom of the R-axis manual rotation platform (202) is fixedly mounted on the upper mounting base (2015), and the bottom of the XY-axis manual displacement platform (203) is fixedly mounted on the rotating end of the R-axis manual rotation platform (202). The outer shell (301) is fixedly mounted on the slide of the XY-axis manual displacement platform (203).

10. A grating-type laser line-laying device for wall tiles according to claim 6, characterized in that: The support mechanism (1) is a telescopic adjustable tripod. The lower mounting base (2011) is fixedly installed on the mounting base on the top of the telescopic adjustable tripod. Anti-slip pads are fixedly installed at the end of the telescopic tripod.

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