Large-area paving dry and hard mortar mechanical leveling construction device and construction method

Abstract

The invention discloses a face brick paving construction method. The method comprises the following steps that S1, face bricks and auxiliary materials are selected and inspected; s2, cleaning sundries and floating ash on a base layer, flushing and airing; s3, according to the drawing and the brick specification, a brick arrangement mode is pre-laid; s4, a first-line brick is laid according to a control line, and the deviation is rechecked; s5, dry hard mortar is prepared according to the proportion and laid in a layered mode; s6, the mortar layer is leveled through a laser leveling instrument, and the elevation is measured again; s7, back-coating adhesive mortar on the face bricks, paving according to the control line, and lightly knocking and compacting; s8, after paving is conducted for 24 h, joint wiping and compacting are conducted through a matched joint mixture; and S9, actually measuring and checking flatness and the like. And S10, watering and maintaining after the rectification is qualified. The problems that traditional manual leveling is low in precision, poor in efficiency and uneven in mortar compactness are solved through mechanical leveling, standardized operation is achieved, the elevation of a mortar layer is controlled, the compactness of a bonding layer is guaranteed, and the construction quality and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of road construction equipment technology, and in particular to a mechanical leveling construction device and method for large-area paving with dry hard mortar. Background Technology

[0002] In the field of large-area paving construction, leveling the dry-hardened mortar layer is a crucial step in ensuring the quality of tile laying. Traditionally, leveling this layer relies heavily on manual labor, with workers using tools like screeds and relying on experience to level it. This traditional manual leveling method has several drawbacks: First, insufficient precision: Due to differences in worker skill and experience, the elevation and flatness of the dry-hardened mortar layer are difficult to control precisely, leading to unevenness and hollow spots in subsequent tile laying. Second, low efficiency: Manual leveling is cumbersome, requiring repeated adjustments and checks, consuming significant manpower and time. In large-area paving projects, this severely restricts construction progress and makes it difficult to meet deadlines. Third, uneven density: The consistent force and uniformity of manual operation result in uneven density distribution of the dry-hardened mortar layer, affecting the bonding strength between the tiles and the substrate, reducing the durability and overall service life of the paving project.

[0003] To overcome the aforementioned shortcomings of traditional manual leveling and achieve standardized, precise, and efficient leveling of dry-hard mortar layers, this patent proposes a mechanical leveling device and method for large-area paving with dry-hard mortar. This technology utilizes a dry-hard mortar leveling device, placing a walking frame on the completed paving surface. The loose thickness of the dry-hard mortar is controlled by adjusting the elevation of the leveling scraper. Simultaneously, the walking path is controlled by using a horizontal pulley to press against the side of the laid bricks. This achieves standardized leveling of the dry-hard mortar layer in the paving area, effectively controlling the elevation of the dry-hard mortar layer, ensuring the density of the bonding layer, and thus improving the construction quality and efficiency of large-area paving projects. Summary of the Invention

[0004] To address the shortcomings of traditional methods, the present invention aims to provide a mechanical leveling device and method for large-area paving with dry-hard mortar. This invention solves the technical problems of insufficient precision, low efficiency, and uneven density of the dry-hard mortar layer in traditional manual leveling of dry-hard mortar for large-area paving. The mechanical leveling device enables standardized operation of leveling the dry-hard mortar layer, effectively controls the elevation of the dry-hard mortar layer, ensures the density of the bonding layer, and improves the construction quality and efficiency of large-area paving projects.

[0005] The technical implementation scheme of the present invention is as follows:

[0006] A method for mechanical leveling of large-area paving projects includes the following steps:

[0007] S1. Material preparation and inspection: Select facing bricks and auxiliary materials that meet the design requirements, inspect the materials and conduct performance spot checks to ensure that the materials are qualified.

[0008] S2. Substrate pretreatment: Clean the surface of the substrate, removing debris, dust and loose layers. Rinse with clean water and then let it dry.

[0009] S3. Pre-layout and marking: Based on the design drawings and brick specifications, pre-layout simulation is carried out on the base layer to determine the brick arrangement method;

[0010] S4. First line brick positioning construction: Lay the first line bricks according to the control line and check their deviation from the axis and elevation line;

[0011] S5. Mortar layer preparation and laying: Prepare dry-hard mortar according to the mix proportion and lay the mortar layer in layers;

[0012] S6. Mortar layer leveling and verification: The mortar layer is leveled using a laser leveler, and the elevation of the mortar layer is re-measured;

[0013] S7. Tile laying and adjustment: Apply adhesive mortar to the back of the tile and lay it on the mortar layer according to the control line. When laying, gently tap the tile with a rubber mallet to ensure that the tile is tightly bonded to the mortar layer.

[0014] S8. Grouting and Surface Cleaning: 24 hours after the tiles are laid, use grout that matches the color of the tiles to grout the joints. The grout should fill the gaps completely and be compacted.

[0015] S9. Actual Measurement and Rectification: Actual measurement and rectification of the paved bricks, including checking the surface flatness, the straightness of the joints, and the height difference between adjacent bricks;

[0016] S10. Maintenance: After the rectification is qualified, the paved surface shall be watered for maintenance.

[0017] Preferably, in step S2, the base layer pretreatment includes testing the flatness and verticality of the base layer. If the deviation exceeds the specification requirements, cement mortar is used for leveling. After the base layer dries, an interface agent is applied to enhance the adhesion between the base layer and the mortar. In step S3, a layer of neat cement slurry is applied. After cleaning the base layer, it is thoroughly wetted with water and neat cement is sprinkled on the surface. Then, it is swept evenly with a broom. The size of the slurry area should be determined according to the speed of the base layer mortar application, and it should be applied as it is applied. In step S3, the dimensions are arranged in both the longitudinal and transverse directions on the ground, with a joint width of 1mm-2mm. When the size of the paving is less than a multiple of a whole brick, if the size difference is large, half a brick is cut for the corners. If the size difference is small, the brick joints are adjusted. Then, according to the determined number of bricks and joint width, longitudinal and transverse control lines are marked on the ground at intervals of one line every four bricks, and the squareness of the paving is strictly controlled. In step S4, the "cross grid hanging line method" is used to control the flatness of the paved surface, and 2 A meter-long aluminum alloy strip is used for verification; during paving, each construction section is operated simultaneously, forming a surface section by section, and the principle of "thick plates first, then thin plates" is followed for plates of different thicknesses to ensure that the mortar bonding layer is full and dense.

[0018] Preferably, in step S5, the mortar is first mixed, then poured onto the work site using a leveling construction device, and scraped and compacted to achieve a standardized operation for leveling the dry hard mortar layer in the paving area.

[0019] Step S7 includes the following steps:

[0020] A1. Construction preparation and benchmark setting: First, lay several rows of bricks along the longitudinal direction of the paving area to determine the rules and elevation. Then, using these rows of bricks as a benchmark, pull out control lines to clarify the subsequent paving direction. At the same time, clean the surface of the concrete subbase, sprinkle a layer of water evenly, and wait for the surface to dry slightly before use.

[0021] A2. Treatment of bonding and adhesive layers: On the dried subfloor, lay a 2cm thick layer of dry-hard cement mortar with a ratio of 1:2 as the bonding layer and smooth it out. Then pour a thin layer of cement slurry on the surface of the bonding layer. At the same time, apply adhesive slurry with the back of the brick to be laid facing up. The cement mortar should be mixed and used immediately to avoid false setting that would affect the bonding effect.

[0022] A3. Brick laying and flatness control: Lay the bricks with the adhesive mortar applied on the cement mortar layer according to the design pattern, ensuring that the bricks are in line with the reference control line and that the gaps between the bricks meet the design requirements. After each brick is laid, immediately place a flat wooden board on its top surface and use a rubber mallet to vibrate the wooden board in multiple places to keep the top surface of all bricks on the same plane and ensure that the paving is flat.

[0023] Preferably, in step S8, the brick laying and adjustment step includes the following steps: laying the bricks, adjusting and straightening the joints with a string, then sprinkling dry cement powder on the road surface and sweeping it into the gaps between the bricks to fill the gaps, and finally sweeping out the excess mortar in the joints and compacting the brick surface.

[0024] A dry-hardened mortar mechanical leveling device includes a frame, a first counterweight groove, a track, and a scraping mechanism. The frame has a rectangular frame structure, with a track at the bottom and a first counterweight groove and a counterweight block at the top. A scraping mechanism is provided at one end of the frame, including a scraping frame, a rotating shaft, a wire rope, a first drive motor, a first transmission chain, and a first connecting rod. The scraping frame is movably connected to a fixed lug on the frame via a connecting block at one end. The first connecting rod is provided on the scraping frame, and the wire rope on the first connecting rod is connected to a winding wheel on the rotating shaft via a wire guide wheel.

[0025] Preferably, the scraper frame is a rectangular cavity structure with openings at both the top and bottom, and an auxiliary rotating wheel is provided at one end of the scraper frame; the wire guide wheel is provided on the side of the first counterweight groove; a connecting wheel is provided at the connection point of the wire rope and the first connecting rod; the first drive motor is provided on the upper part of the frame, and the output shaft of the first drive motor is connected to the second sprocket on the rotating shaft through the first transmission chain to form a transmission structure.

[0026] Preferably, it further includes a gap compaction mechanism, which includes a second connecting rod, a third connecting rod, a pressure roller, and a second counterweight frame. One end of the third connecting rod is movably connected to a through hole on the second connecting rod via a pin, and a pressure roller is provided in a mounting groove on the other end of the third connecting rod. A second counterweight frame is provided on the upper part of the second connecting rod.

[0027] Preferably, the upper part of the frame is provided with a second drive motor, a third sprocket, a fourth sprocket, a second chain, and a drive shaft. The second drive motor is located on the upper part of the frame, and the output shaft of the second drive motor is provided with a third sprocket. The third sprocket is connected to the fourth sprocket on the drive shaft through the second chain. The drive shaft is located inside the frame and is used for the transmission of the tracks.

[0028] Preferably, the upper part of the frame is provided with a first protective cover and a second protective cover, the first protective cover is located above the second drive motor, and the second protective cover is located above the first drive motor.

[0029] The present invention has the following advantages:

[0030] 1. This invention proposes a mechanical leveling construction method, which can lay mortar flat or diagonally on the construction surface through mechanical leveling before laying stone slabs, thereby achieving standardized operation of leveling the dry hard mortar layer in the paving area.

[0031] 2. In order to facilitate construction operations, this invention designs a mechanical leveling and scraping device that can automatically guide and scrape materials. During the laying of stone slabs, it can both compact the stone slabs and simultaneously scrape the dry mortar on the sides, thereby improving construction efficiency.

[0032] 3. In this invention, a gap compaction mechanism is also provided on the frame, which can further compact the gaps and easily loosened parts between the stone slabs after they are laid flat, thereby improving the density of the stone slabs. Attached Figure Description

[0033] Figure 1 This is a process flow diagram of the present invention.

[0034] Figure 2 This is a schematic diagram of the mechanical leveling device for dry hard mortar of the present invention.

[0035] Figure 3 This is a schematic diagram of the scraping mechanism of the present invention.

[0036] Figure 4 This is a schematic diagram of the structure of the second drive motor part of the present invention.

[0037] Figure 5 This is a schematic diagram of the gap compaction mechanism of the present invention.

[0038] The meanings of the reference numerals in the figure are as follows: 1-Frame, 2-First counterweight groove, 3-Counterweight block, 4-Scraping mechanism, 401-First drive motor, 402-First transmission chain, 403-Second sprocket, 404-Rotating shaft, 405-Winding wheel, 406-Wire guide wheel, 407-Wire rope, 408-Fixing lug, 409-Connecting wheel, 410-First connecting rod, 411-Scraping frame, 412-Auxiliary rotating wheel, 5-Crawler track, 6-Compacting mechanism, 601-Second connecting rod, 602-Third connecting rod, 603-Placement groove, 604-Second counterweight frame, 605-Pressure roller, 7-First protective cover, 8-Second protective cover, 9-Second drive motor, 10-Third sprocket, 11-Second chain, 12-Fourth sprocket. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0040] A method for mechanical leveling of large-area paving projects includes the following steps:

[0041] S1. Material Preparation and Inspection: Select facing bricks and auxiliary materials that meet the design requirements, inspect the materials and conduct performance spot checks to ensure that the materials are qualified; S2. Base Layer Pretreatment: Clean the surface of the base layer of debris, floating dust and loose layers, rinse with clean water and let it dry; S3. Pre-laying Layout and Marking: According to the design drawings and facing brick specifications, conduct a pre-laying simulation on the base layer to determine the brick layout method; S4. First Line Brick Positioning and Construction: Conduct a trial laying of the first line bricks according to the control line, and check its deviation from the axis and elevation line; S5. Mortar Layer Preparation and Laying: Prepare dry-hard mortar according to the mix ratio and lay the mortar layer in layers; S6. Mortar layer leveling and verification: The mortar layer is leveled using a laser leveler, and the elevation of the mortar layer is re-measured; S7, Tile laying and adjustment: Adhesive mortar is applied to the back of the tiles, and they are laid on the mortar layer according to the control lines. When laying, the tiles are gently tapped with a rubber mallet to ensure that the tiles are tightly bonded to the mortar layer; S8, Grouting and surface cleaning: 24 hours after the tiles are laid, grout matching the color of the tiles is used to grout the joints. The grout must fill the gaps and be compacted; S9, Actual measurement and rectification: Actual measurement and rectification of the laid tiles are carried out, including checking the surface flatness, the straightness of the joints, and the height difference between adjacent tiles; S10, Curing: After rectification is qualified, the paved surface is watered for curing.

[0042] In step S2, the base layer pretreatment includes checking the flatness and verticality of the base layer. If the deviation exceeds the specification requirements, cement mortar is used for leveling. After the base layer dries, an interface agent is applied to enhance the adhesion between the base layer and the mortar. In step S3, a layer of neat cement slurry is applied. After cleaning the base layer, it is thoroughly wetted with water and neat cement is sprinkled on the surface. Then, it is swept evenly with a broom. The size of the slurry area should be determined according to the speed of the base layer mortar application, and it should be applied as it is applied. In step S3, the dimensions are arranged in both the longitudinal and transverse directions on the ground, with a joint width of 1.5mm. When the size of the paving is less than a multiple of a whole brick, if the size difference is large, half a brick is cut for the corners. If the size difference is small, the brick joints are adjusted. Then, according to the determined number of bricks and joint width, longitudinal and transverse control lines are marked on the ground at intervals of one line every four bricks, and the squareness of the paving is strictly controlled. In step S4, the "cross grid hanging line method" is used to control the flatness of the paved surface, and 2 A meter-long aluminum alloy strip is used for verification; during paving, each construction section is operated simultaneously, forming a surface section by section, and the principle of "thick plates first, then thin plates" is followed for plates of different thicknesses to ensure that the mortar bonding layer is full and dense.

[0043] In step S5, the mortar is first mixed, then poured onto the work site using a leveling construction device, and scraped and compacted to achieve a standardized leveling process for the dry, hard mortar layer in the paving area; step S7 includes the following steps:

[0044] A1. Construction preparation and benchmark setting: First, lay several rows of bricks along the longitudinal direction of the paving area to determine the rules and elevation. Then, using these rows of bricks as a benchmark, pull out control lines to clarify the subsequent paving direction. At the same time, clean the surface of the concrete subbase, sprinkle a layer of water evenly, and wait for the surface to dry slightly before use.

[0045] A2. Treatment of bonding and adhesive layers: On the dried subfloor, lay a 2cm thick layer of dry-hard cement mortar with a ratio of 1:2 as the bonding layer and smooth it out. Then pour a thin layer of cement slurry on the surface of the bonding layer. At the same time, apply adhesive slurry with the back of the brick to be laid facing up. The cement mortar should be mixed and used immediately to avoid false setting that would affect the bonding effect.

[0046] A3. Brick laying and flatness control: Lay the bricks with the adhesive mortar applied on the cement mortar layer according to the design pattern, ensuring that the bricks are in line with the reference control line and that the gaps between the bricks meet the design requirements. After each brick is laid, immediately place a flat wooden board on its top surface and use a rubber mallet to vibrate the wooden board in multiple places to keep the top surface of all bricks on the same plane and ensure that the paving is flat.

[0047] In step S8, the brick laying and adjustment process includes the following steps: laying the bricks, adjusting and straightening the joints with a string, then sprinkling dry cement powder on the road surface and sweeping it into the gaps between the bricks to fill the gaps, and finally sweeping out the excess mortar from the joints and compacting the brick surface.

[0048] It should be noted that, firstly, during the entire base treatment process, the mortar and debris on the concrete surface must be thoroughly cleaned, and dirt in the base pits must be carefully removed. Afterward, a layer of neat cement slurry should be applied. After cleaning the base, it should be thoroughly wetted with water and then sprinkled with neat cement, followed by sweeping evenly with a broom. The size of the slurry application area should be determined based on the speed of the base layer application; it should be applied immediately after sweeping. Secondly, in step S4, the "cross-grid hanging line method" is used to control the flatness of the paved surface. Flatness can be controlled using 2-meter-long aluminum alloy strips. During paving, each construction section should be applied simultaneously. The process involves laying slabs of varying thicknesses in sections, following the principle of "thicker slabs first, then thinner slabs" to ensure a full and dense mortar bonding layer. Finally, in steps S9 and S10, the laid bricks are aligned and straightened using a string line. Dry cement powder is then sprinkled onto the pavement and swept into the gaps between the blocks to fill them. Excess mortar is then swept out, and the brick surface is compacted. Damaged bricks are replaced promptly. After laying, the cement mortar beneath the slabs gradually hardens, bonding the slab tightly to the underlying stabilizing layer. After completion, the slabs are watered multiple times for curing.

[0049] like Figures 2-5As shown, a dry hard mortar mechanical leveling device includes a frame 1, a first counterweight groove 2, a track 5, and a scraping mechanism 4. The frame 1 has a rectangular frame structure, and the bottom of the frame 1 is provided with the track 5. The upper part of the frame 1 is provided with the first counterweight groove 2 and the counterweight block 3. One end of the frame 1 is provided with a scraping mechanism 4, which includes a scraping frame 411, a rotating shaft 404, a wire rope 407, a first drive motor 401, a first transmission chain 402, and a first connecting rod 410. The scraping frame 411 is movably connected to the fixing lug 408 on the frame 1 through a connecting block at one end. The scraping frame 411 is provided with the first connecting rod 410, and the wire rope 407 on the first connecting rod 410 is connected to the winding wheel 405 on the rotating shaft 404 through a wire guide wheel 406.

[0050] It should be noted that the bottom of the frame 1 is fixedly equipped with tracks 5, which are connected to the second drive motor. The motor provides power to drive the tracks to run smoothly and is specifically used for concentrated compaction of the laid stone slabs. The tracks 5 adopt a flexible structure made of multiple track pieces spliced ​​together. The working surface in contact with the stone slab is a continuous and evenly distributed pressure surface, which can form a multi-point synchronous pressure effect during operation. This design allows the compaction force to be applied evenly to the entire surface of the stone slab, effectively constraining the stress state of each edge of the stone slab, and fundamentally avoiding edge warping and misalignment caused by uneven local stress during the compaction process.

[0051] It should be further explained that compared with the traditional roller compaction method, the compaction advantage of the track 5 is particularly significant. The multi-contact pressure mode of the track can refine the action unit of the compaction operation, so that the pressure not only acts on the surface of the stone slab, but also penetrates into the splicing gap of adjacent stone slabs through the adhesion and transmission of the track plates, expelling the air in the gap and compacting the bonding surface around the gap; at the same time, the flexible bonding characteristics of the track can adapt to the slight undulations of the stone slab surface, ensuring that each contact point can apply uniform pressure, further improving the overall compaction density and stability, and ensuring the flatness and firmness of the stone slab after laying.

[0052] It should be further explained that one end of the frame 1 is equipped with a scraping mechanism 4, which is specifically designed for the dry mortar layer laid on the ground. Its core function is to precisely scrape and level the surface and side areas of the mortar to ensure that the flatness of the dry mortar meets the requirements for subsequent stone slab laying.

[0053] The core actuating component of the scraping mechanism 4 is the scraping frame 411. One end of the scraping frame 411 is connected to the fixed ear 408 of the frame 1 via a connecting block. This connection structure allows the scraping frame 411 to always be in contact with the side area of ​​the ground during operation, forming a directional scraping and leveling effect on the dry mortar that is scattered and accumulated on the side, thus avoiding the unevenness of the mortar on the side from affecting the overall laying accuracy.

[0054] To address the issue of ease of movement when the equipment is not in operation and to prevent direct interference between the scraper frame 411 and the road surface, which could cause structural wear or obstruction of movement, the scraper mechanism 4 is specially designed with a foldable and retractable structure. This structure uses the rotating shaft 404 as the core rotation fulcrum and is equipped with a transmission assembly consisting of a winding wheel 405 and a steel wire rope. When the winding wheel 405 is driven to tighten the steel wire rope, the steel wire rope will generate a directional tension that acts on the scraper frame 411, causing the scraper frame 411 to rotate upward around the rotating shaft 404 and ultimately achieve the storage and positioning of the scraper frame 411. Conversely, when the steel wire rope is released, the scraper frame 411 can be reset to the working state under its own weight or the action of the auxiliary mechanism to meet the requirements of the scraping operation.

[0055] The folding and storage design ensures the structural stability and leveling accuracy of the scraper frame 411 during operation, while effectively avoiding road surface interference during non-operational movement, thus improving the equipment's flexibility and practicality.

[0056] like Figures 2-5 As shown, the scraper frame 411 is a rectangular cavity structure with openings at both the top and bottom, and an auxiliary rotating wheel 412 is provided at one end of the scraper frame 411; the wire guide wheel 406 is provided on the side of the first counterweight groove 2; a connecting wheel 409 is provided at the connection point of the wire rope 407 and the first connecting rod 410; the first drive motor 401 is provided on the upper part of the frame 1, and the output shaft of the first drive motor 401 is connected to the second sprocket 403 on the rotating shaft 404 through the first transmission chain 402 to form a transmission structure.

[0057] It should be noted that an auxiliary rotating wheel 412 is provided at one end of the scraper frame 411. The purpose of this design is that during operation, the entire equipment is pressed on the upper part of the laid stone slab, and the scraper frame 411 is used to scrape the dry mortar in the unlaid area. In this process, the auxiliary rotating wheel 412 can be connected to the side of the stone slab for guidance and provide auxiliary guidance during the scraping process.

[0058] like Figures 2-5 As shown, it also includes a gap compaction mechanism 6, which includes a second connecting rod 601, a third connecting rod 602, a pressure roller 605, and a second counterweight frame 604. One end of the third connecting rod 602 is movably connected to the through hole on the second connecting rod 601 through a pin, and the pressure roller 605 is provided in the mounting groove 603 on the other end of the third connecting rod 602. The second counterweight frame 604 is provided on the upper part of the second connecting rod 601.

[0059] It should be noted that a gap compaction mechanism is also installed on the frame, which can further compact the gaps and loose areas between the laid stone slabs to improve the density of the stone slabs. In addition, the pressure roller 605 on the third connecting rod 602 can be designed as an adjustable structure, so it can be replaced according to the needs of the compaction area, thus improving the applicability of the equipment.

[0060] It should be further explained that the setting of the second counterweight frame 604...

[0061] like Figures 2-5 As shown, the upper part of the frame 1 is provided with a second drive motor 9, a third sprocket 10, a fourth sprocket 12, a second chain 11, and a drive shaft. The second drive motor 9 is located on the upper part of the frame 1, and the third sprocket 10 is located on the output shaft of the second drive motor 9. The third sprocket 10 is connected to the fourth sprocket 12 on the drive shaft through the second chain 11. The drive shaft is located inside the frame 1 and is used for the transmission of the track 5.

[0062] It should be noted that the second drive motor 9 is connected to the drive shaft through the second chain 11 to realize the transmission of the entire track, thus realizing the movement of the entire equipment.

[0063] like Figures 2-5 As shown, the upper part of the frame 1 is provided with a first protective cover 7 and a second protective cover 8. The first protective cover 7 is located on the upper part of the second drive motor 9, and the second protective cover 8 is located on the upper part of the first drive motor 401.

[0064] It should be further explained that the protective cover is designed to protect operators from touching the transmission components.

[0065] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for mechanical leveling construction of large-area paving, characterized in that, Includes the following steps: S1. Material preparation and inspection: Select facing bricks and auxiliary materials that meet the design requirements, inspect the materials and conduct performance spot checks to ensure that the materials are qualified. S2. Substrate pretreatment: Clean the surface of the substrate, removing debris, dust and loose layers. Rinse with clean water and then let it dry. S3. Pre-layout and marking: Based on the design drawings and brick specifications, pre-layout simulation is carried out on the base layer to determine the brick arrangement method; S4. First line brick positioning construction: Lay the first line bricks according to the control line and check their deviation from the axis and elevation line; S5. Mortar layer preparation and laying: Prepare dry-hard mortar according to the mix proportion and lay the mortar layer in layers; S6. Mortar layer leveling and verification: The mortar layer is leveled using a laser leveler, and the elevation of the mortar layer is re-measured; S7. Tile laying and adjustment: Apply adhesive mortar to the back of the tile and lay it on the mortar layer according to the control line. When laying, gently tap the tile with a rubber mallet to ensure that the tile is tightly bonded to the mortar layer. S8. Grouting and Surface Cleaning: 24 hours after the tiles are laid, use grout that matches the color of the tiles to grout the joints. The grout should fill the gaps completely and be compacted. S9. Actual Measurement and Rectification: Actual measurement and rectification of the paved bricks, including checking the surface flatness, the straightness of the joints, and the height difference between adjacent bricks; S10. Maintenance: After the rectification is qualified, the paved surface shall be watered for maintenance.

2. The mechanical leveling construction method for large-area paving according to claim 1, characterized in that, In step S2, the base layer pretreatment includes testing the flatness and verticality of the base layer. If the deviation exceeds the specification requirements, cement mortar is used for leveling. After the base layer dries, an interface agent is applied to enhance the adhesion between the base layer and the mortar. In step S3, a layer of neat cement slurry is applied. After cleaning the base layer, the surface is thoroughly wetted with water and then sprinkled with neat cement. The area of ​​the slurry application should be swept evenly with a broom. The size of the slurry application area should be determined according to the speed of the base layer application and mortar laying. The slurry should be applied as it is applied. In step S3, the dimensions are arranged in both the longitudinal and transverse directions on the ground, with a joint width of 1mm-2mm. When the ground paving size is less than a multiple of a whole brick, if the size difference is large, half a brick is cut for the corner. If the size difference is small, the brick joint is adjusted. Then, according to the determined number of bricks and joint width, longitudinal and transverse control lines are marked on the ground at intervals of one line every four bricks, and the squareness of the paving is strictly controlled. In step S4, the flatness of the paved surface is controlled by a cross grid hanging line method, and a 2-meter-long aluminum alloy strip is used for auxiliary verification. During paving, each construction section is operated simultaneously and the surface is formed by each section. For boards of different thicknesses, the thicker boards are laid first and then the thinner boards are laid to ensure that the mortar bonding layer is full and dense.

3. The mechanical leveling construction method for large-area paving according to claim 1, characterized in that, In step S5, the mortar is first mixed, then poured onto the work station using a leveling construction device, and scraped and compacted to achieve a standardized operation of leveling the dry and hard mortar layer in the paving area. Step S7 includes the following steps: A1. Construction preparation and benchmark setting: First, lay several rows of bricks along the longitudinal direction of the paving area to determine the rules and elevation. Then, using these rows of bricks as a benchmark, pull out control lines to clarify the subsequent paving direction. At the same time, clean the surface of the concrete subbase, sprinkle a layer of water evenly, and wait for the surface to dry slightly before use. A2. Treatment of bonding and adhesive layers: On the dried subfloor, lay a 2cm thick layer of dry-hard cement mortar with a ratio of 1:2 as the bonding layer and smooth it out. Then pour a thin layer of cement slurry on the surface of the bonding layer. At the same time, apply adhesive slurry with the back of the brick to be laid facing up. The cement mortar should be mixed and used immediately to avoid false setting that would affect the bonding effect. A3. Brick laying and flatness control: Lay the bricks with the adhesive mortar applied on the cement mortar layer according to the design pattern, ensuring that the bricks are in line with the reference control line and that the gaps between the bricks meet the design requirements. After each brick is laid, immediately place a flat wooden board on its top surface and use a rubber mallet to vibrate the wooden board in multiple places to keep the top surface of all bricks on the same plane and ensure that the paving is flat.

4. The mechanical leveling construction method for large-area paving according to claim 1, characterized in that, In step S8, the brick laying and adjustment process includes the following steps: laying the bricks, adjusting and straightening the joints with a string, then sprinkling dry cement powder on the road surface and sweeping it into the gaps between the bricks to fill the gaps, and finally sweeping out the excess mortar from the joints and compacting the brick surface.

5. The dry mortar mechanical leveling device according to claim 1, characterized in that, It includes a frame (1), a first counterweight groove (2), a track (5) and a scraping mechanism (4). The frame (1) is a rectangular frame structure, and the bottom of the frame (1) is provided with a track (5). The upper part of the frame (1) is provided with a first counterweight groove (2) and a counterweight block (3). A scraping mechanism (4) is provided at one end of the frame (1). The scraping mechanism (4) includes a scraping frame (411), a rotating shaft (404), a wire rope (407), a first drive motor (401), a first transmission chain (402), and a first connecting rod (410). The scraping frame (411) is movably connected to the fixing ear (408) on the frame (1) through a connecting block at one end. The scraping frame (411) is provided with a first connecting rod (410). The wire rope (407) on the first connecting rod (410) is connected to the winding wheel (405) on the rotating shaft (404) through a wire guide wheel (406).

6. A dry-hardened mortar mechanical leveling device according to claim 5, characterized in that, The scraper frame (411) is a rectangular cavity structure with openings at both the top and bottom, and an auxiliary rotating wheel (412) is provided at one end of the scraper frame (411). The guide wheel (406) is located on the side of the first counterweight groove (2); A connecting wheel (409) is provided at the connection point between the wire rope (407) and the first connecting rod (410). The first drive motor (401) is mounted on the upper part of the frame (1), and the output shaft of the first drive motor (401) is connected to the second sprocket (403) on the rotating shaft (404) through the first transmission chain (402) to form a transmission structure.

7. A dry-hardened mortar mechanical leveling device according to claim 6, characterized in that, It also includes a gap compaction mechanism (6), which includes a second connecting rod (601), a third connecting rod (602), a pressure roller (605) and a second counterweight frame (604). One end of the third connecting rod (602) is movably connected to the through hole on the second connecting rod (601) through a pin, and the pressure roller (605) is provided in the mounting groove (603) on the other end of the third connecting rod (602). The upper part of the second connecting rod (601) is provided with a second counterweight frame (604).

8. A dry-hardened mortar mechanical leveling device according to claim 5, characterized in that, The upper part of the frame (1) is provided with a second drive motor (9), a third sprocket (10), a fourth sprocket (12), a second chain (11) and a transmission shaft. The second drive motor (9) is located on the upper part of the frame (1), and the third sprocket (10) is located on the output shaft of the second drive motor (9). The third sprocket (10) is connected to the fourth sprocket (12) on the transmission shaft through the second chain (11). The drive shaft is located inside the frame (1) and is used for the drive of the track (5).

9. A dry-hardened mortar mechanical leveling device according to claim 8, characterized in that, The upper part of the frame (1) is provided with a first protective cover (7) and a second protective cover (8). The first protective cover (7) is located on the upper part of the second drive motor (9), and the second protective cover (8) is located on the upper part of the first drive motor (401).

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