Scraper tool and tile paving device using the same

Abstract

The utility model discloses a scraper tool and porcelain tile paving mortar device of application thereof, the scraper tool among them includes two suspension rods of mirror image symmetry arrangement, the scraper subassembly of sliding assembly between two suspension rods and the lifting subassembly of assembly on two suspension rods for determining the suspension height of suspension rod, the scraper subassembly includes the push rod of sliding assembly between two suspension rods and the tooth profile scraper of fixed mounting on push rod. When using the utility model, after measuring the highest point of base surface and determining the paving mortar thickness of each porcelain tile through the benchmark height calculation, the tooth profile scraper height is adjusted through the lifting subassembly, makes the gap between the bottom end of tooth profile scraper and porcelain tile back surface match the paving mortar thickness, pushes tooth profile scraper and slides along the suspension rod, can accurate control porcelain tile back surface paving mortar thickness after scraping the mortar and pulling out the groove. The utility model can ensure that mortar layer is uniform and consistent and effectively improve the full mortar rate, and then can reduce the hollow rate greatly, and improve the paving quality.

Description

Technical Field

[0001] This utility model belongs to the field of building decoration construction technology, and relates to a tile grouting auxiliary tool, specifically a scraper tool and a tile grouting device using the same. Background Technology

[0002] In tile installation, the application of the mortar layer (also known as the adhesive layer) is mainly done manually. The standard procedure is as follows: 1. Mortar preparation: Workers mix cement, sand, and additives on-site, controlling the water-cement ratio based on experience; 2. Substrate preparation: The mortar is roughly spread manually on the substrate (floor / wall) or the back of the tiles; 3. Notched troweling: A handheld notched trowel is used to smooth the mortar and create grooves; 4. Tile compaction: The tiles are pressed into the mortar layer, and the flatness is adjusted by hammering.

[0003] Currently, traditional manual slurry spreading methods have the following limitations: One issue is that it can easily lead to a loss of control over the uniformity of the mortar layer. When using toothed scraping, the depth of scraping depends heavily on the worker's experience, resulting in significant fluctuations in mortar thickness. The depth and spacing of the tooth marks are also highly random, which can easily cause uneven distribution of the mortar and form local weak bonding areas. Secondly, insufficient mortar coverage can easily lead to hollow spots. When laying tiles, a leveling layer is needed on the substrate (floor / wall) to eliminate unevenness. However, after the leveling layer is completed, there is usually a 1-2cm height error. The thickness of the mortar on the back of the tile varies slightly depending on the area of ​​the leveling layer. Manual mortar application makes it difficult to precisely control the mortar thickness for each tile, easily resulting in gaps in the mortar, causing hollow spots and ultimately leading to tile detachment. Thirdly, there are bottlenecks in work efficiency and rising costs. After pressing the tiles into the grout layer and adjusting the flatness with a hammer, if the grout coverage is deemed insufficient, workers need to remove the tiles and apply more grout to avoid hollow spots. This rework and grout application results in low tiling efficiency. According to incomplete statistics, skilled workers can only tile an average area of ​​15-25 square meters per day. 2 (Large-sized tiles are less efficient), requiring high work intensity and resulting in low efficiency. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a scraper tool and a tile grouting device using the same, so as to improve the efficiency and quality of tile laying by increasing the uniformity and full coverage of the grout layer.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a scraper tool, comprising two suspension rods arranged in a mirror symmetrical manner, a scraper assembly slidably assembled between the two suspension rods, and a lifting assembly assembled on the two suspension rods for determining the suspension rod's levitation height; The scraper assembly includes a push rod slidably mounted between the two suspension rods and a toothed scraper fixed on the push rod.

[0006] As a limitation of this utility model, the end of the push rod is mounted on the suspension rod by a sliding member to realize the sliding mounting of the scraper assembly between the two suspension rods; The sliding element includes a connecting plate that can be adapted to be placed on the suspension rod, and a plurality of rotating parts are mounted on the side of the connecting plate facing the suspension rod; The rotating component contacts the outer surface of the suspension rod.

[0007] As another limitation of this utility model, the lifting assembly is equipped with at least one at each end of the suspension rod; The lifting assembly includes a lead screw nut fixed to the end of the suspension rod, a lead screw assembled in the lead screw nut, and a handwheel fixed to the top of the lead screw; The lead screw passes through the suspension rod.

[0008] As a further limitation of this utility model, both the suspension rod and the push rod are telescopic rods; The toothed scraper includes a first toothed scraper and a second toothed scraper arranged side by side, and the first toothed scraper and the second toothed scraper have an overlapping portion.

[0009] This utility model also discloses a mortar spreading device for conventional ceramic tiles, including a first base frame and a scraper tool as described above; The first base frame has a working surface for placing tiles, and support legs are installed at the four bottom corners of the first base frame; The scraper tool is mounted above the working surface of the first base frame via the lifting assembly. A gap is left between the bottom of the toothed scraper and the working surface, and the size of the gap can be adjusted by the lifting assembly.

[0010] As a limitation of this utility model, the first base frame is also equipped with at least one first measuring component for measuring the height of the scraper tool; The first measuring component includes two limiting plates arranged in a mirror symmetry. The two limiting plates extend vertically upward perpendicular to the working surface. The side of the limiting plate is engraved with a first scale line for measurement, or the side of the limiting plate is equipped with a scale ruler for measurement. The suspension rod is located between the two limiting plates.

[0011] As a further limitation of this utility model, it also includes an elevation measuring component used in conjunction with the present invention. The elevation measuring component includes an internally threaded rod and an externally threaded sleeve that are threaded together as a whole. The outer side of the externally threaded sleeve is engraved with a second scale line for measurement.

[0012] This utility model also discloses a mortar spreading device for large-format ceramic tiles, including a second base frame and a scraper tool as described above; The second base frame is a frame structure with through grooves for accommodating ceramic tiles; The scraper tool is mounted on the second base frame via the lifting assembly, with the bottom end of the toothed scraper facing the through groove, and the height of the bottom end of the toothed scraper from the through groove can be adjusted by the lifting assembly.

[0013] As a limitation of this utility model, the second base frame is also equipped with at least one second measuring component for measuring the height of the scraper tool; The second measuring component includes two limiting plates arranged in a mirror symmetry, the two limiting plates extending vertically upward, and the sides of the limiting plates are engraved with first scale lines for measurement, or the sides of the limiting plates are equipped with scale rulers for measurement. The suspension rod is located between the two limiting plates.

[0014] This utility model also discloses a mortar spreading device for wall tile laying, including the scraper tool as described above; It also includes a mounting plate assembly for securing the nail to the wall, the mounting plate assembly being fitted to one end of the suspension rod; The mounting plate assembly includes an extension sleeve for mounting at the end of the suspension rod, a smooth rod perpendicularly inserted through the extension sleeve, and a mounting plate fixed at the bottom end of the smooth rod; the mounting plate has a first elongated hole for engaging a nail.

[0015] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows: (1) The greatest innovation of this utility model lies in the adjustable height of the toothed scraper achieved through the lifting component. After measuring the highest point of the base surface and calculating the mortar thickness for each tile using the reference elevation, the height of the toothed scraper is adjusted by the lifting component to match the gap between the bottom of the toothed scraper and the back of the tile with the target mortar thickness. Then, the toothed scraper is pushed to slide along the suspension rod, smoothing the mortar and pulling it out of the groove, thus accurately controlling the mortar thickness on the back of the tile. Using this utility model for mortar application, there is no longer a high reliance on worker experience. By using technical certainty to solve the uncertainty of manual work, the uniformity of the mortar layer can be ensured and the full mortar coverage rate can be effectively improved, thereby significantly reducing the hollow rate and improving the paving quality. In addition, compared with the traditional manual mortar application method, this utility model can also improve mortar application efficiency and reduce labor intensity.

[0016] (2) The grouting device for large-size ceramic tiles disclosed in this utility model has a through groove for accommodating ceramic tiles, which allows it to be directly covered and pressed onto the back of large-size ceramic tiles (such as 0.6*1.2m, 0.75*1.5m, 0.9*1.8m) for grouting operation. After grouting is completed, the ceramic tile is turned over to the base layer (ground or wall) for laying and hammering to adjust the flatness, which reduces the lifting of large-size ceramic tiles and avoids the probability of rework (repeatedly adding and removing grout) when grouting by hand.

[0017] (3) The grouting device for wall tile laying disclosed in this utility model has a hanging plate for fixing on the wall surface, so that it can be directly fixed on the wall surface and the wall surface can be scraped with grout. After the grouting is completed, the tile can be directly laid on the wall grout layer and hammered to adjust the flatness. There is no need to lay grout on the tile. It can effectively solve the problem of difficulty in laying large tiles on the wall due to the excessive weight of the back of the tile after grouting. It can effectively reduce the difficulty of laying large tiles on the wall and thus greatly reduce the labor intensity.

[0018] In summary, this utility model has an ingenious structural design, strong practicality, and wide applicability. It is suitable for use when laying various types of tiles to assist workers in completing the grouting work. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model, in which the toothed scraper is vertically fixed on the push rod; Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention from another angle, in which the toothed scraper is vertically fixed on the push rod; Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present utility model, in which the toothed scraper is obliquely fixed on the push rod; Figure 4 This is a schematic diagram of the scraper assembly in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the scraper assembly from another angle in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of Embodiment 2 of this utility model; Figure 8 This is a schematic diagram of the structure of the first base frame in Embodiment 2 of this utility model; Figure 9 This is a schematic diagram of the structure of the first measuring component in Embodiment 2 of this utility model; Figure 10This is a schematic diagram of the usage state structure of Embodiment 2 of this utility model; Figure 11 This is a schematic diagram of the structure of Embodiment 3 of this utility model; Figure 12 This is a schematic diagram of the structure of the second base frame in Embodiment 3 of this utility model; Figure 13 This is a schematic diagram of the usage state of Embodiment 3 of this utility model; Figure 14 This is a schematic diagram of the structure of Embodiment 4 of this utility model; Figure 15 This is another structural schematic diagram of Embodiment 4 of the present utility model; Figure 16 This is a schematic diagram of the hanging plate assembly in Embodiment 4 of this utility model; Figure 17 These are schematic diagrams of the elevation measuring component in Embodiments 2 and 3 of this utility model; Figure 18 This is a reference diagram for the use of the elevation measuring component in Embodiment 2 of this utility model. In the diagram, A refers to the mortar layer, B refers to the base layer (wall or ground), and C refers to the laser of the infrared level. In the diagram: 1. Suspension rod; 2. Scraper assembly; 3. Lifting assembly; 4. Sliding component; 5. Push rod; 6. Toothed scraper; 7. Connecting plate; 8. Rotating component; 9. Baffle plate; 10. Second elongated hole; 11. Lead screw nut; 12. Lead screw; 13. Handwheel; 14. Scraper tool; 15. First base frame; 16. Working surface; 17. Support leg; 18. First longitudinal bar; 19. Second longitudinal bar; 20. First horizontal bar; 21. Second horizontal bar; 22. Third longitudinal bar; 23. Fourth longitudinal bar; 24. Limiting block; 25. First measuring component; 26. Limiting plate; 27. Scale; 28. Third elongated hole; 29. Internally threaded rod; 30. Externally threaded sleeve; 31. Base; 32. Second base frame; 33. Horizontal bar; 34. Vertical bar; 35. Through groove; 36. Tile pressing plate; 37. Second measuring component; 38. Mounting plate assembly; 39. Extension sleeve; 40. Polished rod; 41. Mounting plate; 42. First elongated hole; 43. Tiles; 44. Connecting rods. Detailed Implementation

[0021] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0022] Example 1: A scraper tool This embodiment discloses a scraper tool 14 used when laying mortar on ceramic tile 43, such as Figures 1 to 3 As shown, this embodiment includes two suspension rods 1 arranged in a mirror-symmetric manner, a scraper assembly 2 slidably assembled between the two suspension rods 1, and a lifting assembly 3 assembled on the two suspension rods 1 for determining the suspension height of the suspension rods 1.

[0023] Two mirror-symmetrically arranged suspension rods 1 are used to provide smooth and precise linear motion guidance for the scraper assembly 2, and they are conventional metal rods with rectangular cross-sections as used in the prior art. In this embodiment, the length of each suspension rod 1 is greater than the length of the tile 43 to be grouted, and the distance between the two suspension rods 1 is greater than the width of the tile 43 to be grouted.

[0024] The scraper assembly 2 is used to smooth the mortar on the back of the tile 43 and create grooves. For example... Figure 4 and Figure 5 As shown, the scraper assembly 2 includes a slider 4, a push rod 5, and a toothed scraper 6. The push rod 5 is a conventional metal rod with a rectangular cross-section, and its length is adapted to the distance between the two suspension rods 1. One slider 4 is mounted at each end of the push rod 5 to allow the push rod 5 to slide between the two suspension rods 1. Further, the slider 4 includes a connecting plate 7 that can be placed on the suspension rod 1. In this embodiment, the connecting plate 7 is a right-angled connecting plate 7 that can be placed on the suspension rod 1, preferably an angle iron. Multiple rotating parts 8 are mounted on both sides of the connecting plate 7 facing the suspension rod 1, and all rotating parts 8 contact the outer surface of the suspension rod 1. In this embodiment, the rotating parts 8 are rotating rollers rotatably mounted on the connecting plate 7, and the rolling surface of the rotating rollers contacts the outer surface of the suspension rod 1.

[0025] It should be noted that in this embodiment, the sliding member 4 is only placed on the suspension rod 1, so as to realize the sliding mounting of the scraper assembly 2 between the two suspension rods 1. There is no connection between the two, and the scraper assembly 2 can be easily removed from between the two suspension rods 1.

[0026] The toothed scraper 6, suspended and fixed on the aforementioned push rod 5, is a rectangular flat plate with teeth at its bottom end. Specifically, the toothed scraper 6 has at least two second elongated holes 10 spaced apart, such as... Figure 4 As shown, a bolt is inserted through the second elongated hole 10 to achieve suspension and fixation on the push rod 5. The design of the second elongated hole 10 allows the suspension height of the toothed scraper 6 on the push rod 5 to be flexibly adjusted within a certain range.

[0027] The notched scraper 6 has teeth that can be V-shaped, square, or trapezoidal. The tooth depth and spacing are matched, generally determined by the size of the tile 43 and the type of mortar. Furthermore, the notched scraper 6 can be vertically suspended on the push rod 5, such as... Figure 1 As shown; the toothed scraper 6 can also be suspended at an angle on the push rod 5, such as Figure 3As shown, when smoothing the mortar, the inclined notched scraper 6 can apply downward pressure to the mortar, allowing it to better adhere to the back of the tile 43. The notched scraper 6 can be suspended at an angle on the push rod 5 by placing a right-angled trapezoidal or right-angled triangular pad between the notched scraper 6 and the push rod 5, with the right-angled side of the pad contacting the push rod 5 and the inclined side of the pad contacting the notched scraper 6.

[0028] like Figure 4 As shown, in this embodiment, baffle plates 9 are also fixed on both sides of the toothed scraper. When scraping the mortar, the baffle plates 9 can prevent the mortar from falling from both sides.

[0029] The lifting assembly 3 is equipped with at least one unit at each end of the suspension rod 1 for adjusting the height of the suspension rod 1 and the scraper assembly 2. For example... Figures 1 to 3 As shown, one lifting assembly 3 is installed at each end of each suspension rod 1, and a total of four lifting assemblies 3 are provided in this embodiment. Specifically, the lifting assembly 3 includes a lead screw nut 11, a lead screw 12, and a handwheel 13. The lead screw nut 11 is fixed to the end of the suspension rod 1; the lead screw 12 is installed on the lead screw nut 11 and passes vertically through the suspension rod 1; the handwheel 13 is fixed to the top of the lead screw 12 and is the operating end of the lifting assembly 3.

[0030] Depending on the actual situation, the push rod 5 and suspension rod 1 can also be telescopic rods as used in existing technology, with adjustable lengths to accommodate different sizes of tiles 43 (such as 300*600mm, 400*800mm, 800*800mm, 0.6*1.2m, 0.75*1.5m, 0.9*1.8m, etc.). Correspondingly, the toothed scraper 6 should also have an adjustable length structure in this case. For example, the toothed scraper 6 includes a first toothed scraper and a second toothed scraper arranged side-by-side, with overlapping portions. When the push rod 5 is shortened, the overlapping portion of the first toothed scraper and the second toothed scraper increases, resulting in a correspondingly shorter length of the toothed scraper 6; when the push rod 5 is extended, the overlapping portion of the first toothed scraper and the second toothed scraper decreases, resulting in a correspondingly longer length of the toothed scraper 6.

[0031] Example 2: A mortar spreading device for conventional ceramic tiles This embodiment is an application of Embodiment 1, mainly used when laying mortar on conventional ceramic tiles 43. The conventional ceramic tiles 43 referred to in this embodiment are small-sized ceramic tiles 43 with dimensions of 300*600mm, 400*800mm, and 800*800mm. For example... Figure 6 and Figure 7 As shown, this embodiment includes a first base frame 15 and a scraper tool 14 mounted on the first base frame 15. The scraper tool 14 is the scraper tool 14 disclosed in Embodiment 1.

[0032] It should be noted that in this embodiment, the scraper tool 14 is only placed on the working surface 16 of the first base frame 15, and there is no connection between the two. The scraper tool 14 can be easily removed from the first base frame 15 for easy storage and transfer.

[0033] The first base frame 15 includes a working surface 16 for placing tiles 43 and support legs 17 fixed to the four corners of the bottom of the working surface 16. The working surface 16 is assembled from multiple horizontal and vertical bars. Specifically... Figure 8 As shown, the working surface 16 includes a first longitudinal bar 18 and a second longitudinal bar 19 arranged in a mirror-symmetrical manner; a first crossbar 20 and a second crossbar 21 detachably assembled between the first longitudinal bar 18 and the second longitudinal bar 19 and spaced apart; and a third longitudinal bar 22 and a fourth longitudinal bar 23 detachably assembled between the first crossbar 20 and the second crossbar 21. The third longitudinal bar 22 and the fourth longitudinal bar 23 are spaced apart and parallel to the first longitudinal bar 18 and the second longitudinal bar 19.

[0034] For easy storage, the legs 17 of the first base frame 15 are telescopic or folding legs. Furthermore, the legs 17 are detachably mounted below the working surface 16 of the first base frame 15.

[0035] Depending on the actual situation, the support legs 17, the third longitudinal bar 22, and the fourth longitudinal bar 23 in the first base frame 15 can be removed, and the first cross bar 20 and the second cross bar 21 can be moved outward, so that the first base frame 15 is deformed into the second base frame 32 described below, and thus the entire embodiment is deformed into the embodiment 3 described below, for use in the grouting operation of large-size ceramic tiles 43.

[0036] It should be added here that the first vertical bar 18, the second vertical bar 19, the first horizontal bar 20 and the second horizontal bar 21 mentioned above can also be telescopic bars in the prior art, in order to cooperate with the above embodiment 1 to adjust the length and width, so as to be able to adapt to large-size ceramic tiles 43 (such as 0.6*1.2m, 0.75*1.5m, etc.).

[0037] The scraper tool 14 is mounted above the working surface 16 of the first base frame 15 via the lifting assembly 3. A gap exists between the bottom of the toothed scraper 6 in the scraper tool 14 and the working surface 16, and the size of this gap can be adjusted via the lifting assembly 3. Specifically... Figure 6 As shown, the bottom ends of the lead screws 12 of the four lifting components 3 in the scraper assembly 2 are placed on the first vertical rod 18 and the second vertical rod 19 respectively, and the scraper assembly 2 is suspended above the working surface 16 by the four lifting components 3.

[0038] To prevent the bottom end of the lead screw 12 from detaching from the first longitudinal rod 18 or the second longitudinal rod 19, in this embodiment, limit blocks 24 for limiting the bottom end of the lead screw 12 in the length direction are fixed on the upper surfaces of both ends of the first longitudinal rod 18 and the second longitudinal rod 19, as shown in the figure. Figure 8 As shown.

[0039] The first base frame 15 is also equipped with at least one first measuring component 25 for measuring the height of the suspension rod 1 in the scraper tool 14. In this embodiment, a total of four first measuring components 25 are assembled on the first base frame 15, respectively located at the four corners of the working surface 16. Figure 9 As shown, the first measuring component 25 includes two mirror-symmetrically arranged limiting plates 26, with two cross braces for reinforcing the structure connected between the two limiting plates 26. Taking the fixing of the first measuring component 25 on the first vertical rod 18 as an example, the two cross braces are respectively arranged above and below the first vertical rod 18, and together with the two limiting plates 26, they clamp the first vertical rod 18, thereby achieving the vertical fixing of the first measuring component 25 on the first vertical rod 18.

[0040] Furthermore, the two limiting plates 26 in the first measuring component 25 are respectively disposed on both sides of the suspension rod 1 in the scraper tool 14. In actual use, the two limiting plates 26 can limit the suspension rod 1 in the width direction. The limiting plates 26 in the first measuring component 25, together with the limiting blocks 24 at both ends of the first vertical rod 18 and the second vertical rod 19, cooperate to limit the scraper tool 14 placed on the first base frame 15 in all four directions, so that it does not shake during use.

[0041] Both limiting plates 26 have a first graduation line for measurement engraved on their opposite sides, or are equipped with a measuring scale 27 for measurement. The zero graduation value on the first graduation line or the measuring scale 27 is located at the lower end, and the graduation values ​​increase from bottom to top. Figure 9 As shown, this embodiment employs a structure in which scales 27 are mounted on two limiting plates 26. Each scale 27 has a third elongated hole 28 at both its upper and lower ends, through which bolts are threaded to secure it to the limiting plates 26. In actual use, the design of the third elongated hole 28 allows for adjustment of the scale 27's fixed position on the limiting plates 26, thereby ensuring that all eight scales 27 of the four first measuring components 25 on the first base frame 15 are at the same height.

[0042] This embodiment also includes a height measuring device for use in conjunction with the tile 43 installation, which plays a role in accurate dimensional conversion. For example... Figure 17 As shown, the elevation measuring component includes an internally threaded rod 29 and an externally threaded sleeve 30, which are assembled together by threads. The bottom end of the internally threaded rod 29 is fixed with a base 31, and the outer surface of the externally threaded sleeve 30 is engraved with a second scale line for measurement. The zero mark of the second scale line is located at the lower end, and the scale value increases from bottom to top.

[0043] It should be noted that when laying tiles 43, the base layer (floor / wall) usually needs to have a certain degree of flatness. The flatness error of different areas of the base layer is about 1-2cm.

[0044] The specific process of laying tile 43 using this embodiment is as follows: Step 1: Measure the highest point of the base surface to determine the minimum allowable thickness of the grout layer on that base surface; Step 2: Place tile 43 face down on the working surface 16 of the first base frame 15. Turn the handwheel 13 in the scraper tool 14 to rotate the lead screw 12. Under the action of the lead screw 12 and the lead screw nut 11, adjust the height of the suspension rod 1 and the toothed scraper 6 until the bottom end of the toothed scraper 6 is almost in contact with the back of tile 43. At this time, read the scale value 'a' that is aligned with the upper surface of the suspension rod 1 on the scale 27. Step 3: Spread mortar on the back of tile 43, then push the notched scraper 6 along the suspension rod 1 to smooth the mortar on the back of tile 43 and create a groove. (Under the limiting action of the limiting block 24 and the limiting plate 26, the suspension rod 1 and the lifting assembly 3 are positioned on the first base frame 15, so the suspension rod 1 and the lifting assembly 3 do not move when the notched scraper 6 is pushed along the suspension rod 1.) Then press the tile 43 after mortar application to the highest point of the base surface and adjust the flatness by hammering. Step 4: Use the laser of an infrared level to illuminate a flat surface that is flush with the surface of the first tile 43. Then, use a height measuring device to perform multi-point measurements to determine the thickness of the mortar for the second tile 43. Specifically, rotate the internal thread rod 29 and the external thread sleeve 30 of the height measuring device relative to each other until, when the height measuring device is placed on one side of the first tile 43, the scale value a' where the second scale line on the external thread sleeve 30 is flush with the surface of the first tile 43 is equal to the scale value a read from the ruler 27 in Step 2. Figure 18 Then move the elevation measuring piece to the area on the base surface where the second tile 43 needs to be laid (usually the four corners of the laying area), and read the scale value of the second scale line on the elevation measuring piece aligned with the laser of the infrared level at each corner (recorded as the scale value at the four corners of the laying area). Step 5: Adjust the height of the four corners of the suspension rod 1 using the four lifting components 3, so that the scale values ​​of the scale 27 aligned with the upper surfaces of the four corners of the suspension rod 1 correspond one-to-one with the scale values ​​recorded at the four corners of the paving area; then place the second tile 43 on the working surface 16 of the first base frame 15 with its back facing up, spread the mortar, and push the toothed scraper 6 to slide along the suspension rod 1 to smooth the mortar spread on the back of the tile 43 and pull out the groove; finally, press the second tile 43 after spreading the mortar into the paving area, and adjust the flatness by hammering to make it flush with the first tile 43, thus ensuring the full mortar coverage of the second tile 43 after paving; Repeat steps four and five above until the entire base surface is covered with tiles 43.

[0045] Example 3: A mortar spreading device for large-format ceramic tiles This embodiment is another application of Embodiment 1, mainly used when laying mortar on large-format ceramic tiles 43. The large-format ceramic tiles 43 referred to in this embodiment are large-size ceramic tiles 43 such as 0.6*1.2m, 0.75*1.5m, and 0.9*1.8m. Figure 11 As shown, this embodiment includes a second base frame 32 and a scraper tool 14 mounted on the second base frame 32. The scraper tool 14 is the scraper tool 14 disclosed in Embodiment 1.

[0046] It should be noted that in this embodiment, the scraper tool 14 is simply placed on the second base 32, and there is no connection between the two. The scraper tool 14 can be easily removed from the second base 32 for easy storage and transfer.

[0047] The second base frame 32 is a frame structure formed by two horizontal bars 33 and two vertical bars 34, such as Figure 12 As shown, the second base frame 32 has a through groove 35 in the middle for accommodating the tile 43. Two tile pressing plates 36 are mirror-symmetrically arranged on the second base frame 32, located inside the two vertical rods 34 on either side of the top of the through groove 35. In actual use, the second base frame 32 can be placed over the tile 43, and the tile pressing plates 36 can be used to hold the edges of the tile 43 in place.

[0048] In this embodiment, the assembly method of the scraper tool 14 on the second base frame 32 is basically the same as that in embodiment 2. For example... Figure 11 As shown, the scraper tool 14 is mounted on the second base frame 32 via the lifting assembly 3. The toothed scraper 6 has its toothed bottom end facing the through groove 35 of the second base frame 32, and the height of the bottom end of the toothed scraper 6 from the through groove 35 can be adjusted by the lifting assembly 3. The four lifting assemblies 3 in the scraper assembly 2 are respectively located at the four corners of the second base frame 32, and the bottom end of the lead screw 12 in each lifting assembly 3 is placed on the two vertical rods 34 of the second base frame 32, so that the scraper assembly 2 is suspended and supported by the four second base frames 32.

[0049] To prevent the bottom end of the lead screw 12 from detaching from the vertical rod 34, in this embodiment, the upper surfaces of both ends of the vertical rod 34 are also fixed with limiting blocks 24 for limiting the bottom end of the lead screw 12 in the length direction, specifically as follows: Figure 12 As shown.

[0050] The second base frame 32 is also equipped with at least one second measuring component 37 for measuring the height of the suspension rod 1 in the scraper tool 14. In this embodiment, the second measuring component 37 is exactly the same as the first measuring component 25 in embodiment 2, and will not be described again in this embodiment. The two limiting plates 26 in the second measuring component 37 are respectively disposed on both sides of the suspension rod 1 in the scraper tool 14. In actual use, the two limiting plates 26 can limit the suspension rod 1 in the width direction. The limiting plates 26 in the second measuring component 37 and the limiting blocks 24 at both ends of the vertical rod 34 cooperate with each other to limit the scraper tool 14 placed on the second base frame 32 in all four directions, so that it does not shake during use.

[0051] This embodiment also includes an elevation measuring device used in conjunction with the device, the structure of which is the same as that in Embodiment 2, so it will not be described again.

[0052] In using this embodiment, the tile 43 is placed on the ground with its back facing up, and then the entire assembly of this embodiment is placed on top of the tile 43, so that the tile 43 is located in the through groove 35 of the second base frame 32, as shown. Figure 13 As shown; after the grout is applied, remove the tile from this embodiment, flip the tile 43 to the base layer (ground or wall), and hammer it to adjust the flatness to complete the laying of the large-size tile 43. The adjustment of the grout thickness for each tile 43 is the same as in Embodiment 2, and will not be repeated in this embodiment.

[0053] Example 4: A mortar spreading device for wall tile laying This embodiment is another application of Embodiment 1, mainly used in laying wall tiles, especially when laying large-sized wall tiles. Figure 14 and Figure 15 As shown, this embodiment includes a scraper tool 14 and a hanging plate assembly 38, wherein the scraper tool 14 is the scraper tool 14 disclosed in Embodiment 1.

[0054] Specifically, the mounting plate assembly 38 is used in conjunction with nails to secure the scraper tool 14 to the wall. For example... Figure 16 As shown, the mounting plate assembly 38 includes an extension sleeve 39, a smooth rod 40 vertically inserted through the extension sleeve 39, and a mounting plate 41 fixed to the bottom end of the smooth rod 40. The mounting plate 41 is welded to the bottom end of the smooth rod 40, and has a first elongated hole 42 for a nail to pass through. In this embodiment, the extension sleeve 39 is fixed to the end of the suspension rod 1 in the scraper tool 14, specifically as shown... Figure 14 As shown, each of the two suspension rods 1 has a mounting plate assembly 38 fixed to its end. In actual use, the two mounting plate assemblies 38 can also be connected by a connecting rod 44 to form a configuration as shown in the diagram. Figure 15 The structure shown. Link 44 can be a conventional metal rod or a telescopic rod.

[0055] like Figure 14As shown, the scraper assembly 2 in the scraper tool 14 is mounted on the two suspension rods 1 in a manner different from that in Embodiment 1. In this embodiment, the scraper assembly 2 is mounted on the back side of the suspension rod 1, located on the opposite side of the handwheel 13. The purpose of this mounting is to allow the handwheel 13 to act as a "support" and contact the wall surface during use. Compared to the bottom end of the lead screw 12 contacting the wall surface, this embodiment has a larger contact area with the wall surface during use.

[0056] The specific process of laying wall tiles using this embodiment is as follows: Step 1: Measure the highest point of the wall to determine the minimum allowable thickness of the mortar layer on that wall surface; Step 2: Using the hanging plate assembly 38 with the help of nails, suspend this embodiment at the highest area of ​​the wall, and make contact with the wall by handwheel 13 to ensure that the two suspension rods 1 are parallel to the wall; then turn the handwheel 13 to rotate the lead screw 12 (or directly turn the lead screw 12 to rotate), and adjust the height of the suspension rods 1 and the toothed scraper 6 under the action of the lead screw 12 and the lead screw nut 11 until the bottom end of the toothed scraper 6 is close to the wall; Step 3: Spread mortar in the area, then push the notched scraper 6 from bottom to top to smooth the mortar on the wall and pull out grooves. Excess mortar is scraped off by the notched scraper 6. Step 4: Remove this embodiment and press tile 43 (no mortar is needed on the back of tile 43) directly onto the wall mortar. Adjust the flatness by hammering to complete the laying of the first wall tile. Step 5: Hang this embodiment on the wall again, and adjust it by turning the handwheel 13 so that the bottom surface of the suspension rod 1 is flush with the surface of the first tile 43. Then adjust the distance between the toothed scraper 6 and the wall through the first elongated hole 42 until the bottom of the toothed scraper 6 is almost in contact with the wall. Step 6: Transfer this embodiment to the area where the second wall tile needs to be laid. One of the suspension rods 1 is pressed against the surface of the first tile 43, and the other suspension rod 1 is suspended on the wall through the hanging plate assembly 38, ensuring that the two suspension rods 1 are parallel and located on the same plane. Step 7: Spread mortar in the area, then push the notched scraper 6 from bottom to top to smooth the mortar on the wall and pull out grooves. Excess mortar is scraped off by the notched scraper 6. Step 8: Remove this embodiment and press tile 43 directly onto the wall mortar. Adjust the flatness by hammering to complete the laying of the second wall tile. Repeat steps six through eight above until the entire wall is covered with tiles 43.

[0057] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A scraper tool, characterized in that: It includes two suspension rods arranged in a mirror symmetry, a scraper assembly slidably mounted between the two suspension rods, and a lifting assembly mounted on the two suspension rods for determining the suspension rod's levitation height; The scraper assembly includes a push rod slidably mounted between the two suspension rods and a toothed scraper fixedly mounted on the push rod. The end of the push rod is mounted on the suspension rod via a sliding member to enable the scraper assembly to slide between the two suspension rods; The sliding element includes a connecting plate that can be adapted to be placed on the suspension rod, and a plurality of rotating parts are mounted on the side of the connecting plate facing the suspension rod; The rotating component contacts the outer surface of the suspension rod.

2. The scraper tool according to claim 1, characterized in that: The lifting assembly is equipped with at least one at each end of the suspension rod; The lifting assembly includes a lead screw nut fixed to the end of the suspension rod, a lead screw assembled in the lead screw nut, and a handwheel fixed to the top of the lead screw; The lead screw passes through the suspension rod.

3. The scraper tool according to claim 2, characterized in that: Both the suspension rod and the push rod are telescopic rods; The toothed scraper includes a first toothed scraper and a second toothed scraper arranged side by side, and the first toothed scraper and the second toothed scraper have an overlapping portion.

4. A mortar-spreading device for conventional ceramic tiles, characterized in that: Includes a first base frame and a scraper tool as described in any one of claims 1-3; The first base frame has a working surface for placing tiles, and support legs are installed at the four corners of the bottom of the first base frame; The scraper tool is mounted above the working surface of the first base frame via the lifting assembly. A gap is left between the bottom of the toothed scraper and the working surface, and the size of the gap can be adjusted by the lifting assembly.

5. The mortar spreading device for conventional ceramic tiles according to claim 4, characterized in that: The first base frame is also equipped with at least one first measuring component for measuring the height of the scraper tool; The first measuring component includes two limiting plates arranged in a mirror symmetry. The two limiting plates extend vertically upward perpendicular to the working surface. The side of the limiting plate is engraved with a first scale line for measurement, or the side of the limiting plate is equipped with a scale ruler for measurement. The suspension rod is located between the two limiting plates.

6. The mortar spreading device for conventional ceramic tiles according to claim 4 or 5, characterized in that: It also includes an elevation measuring component for use in conjunction with the other component, which includes an internally threaded rod and an externally threaded sleeve that are threaded together as one unit. The outer surface of the externally threaded sleeve is engraved with a second scale line for measurement.

7. A mortar-spreading device for large-format ceramic tiles, characterized in that: Includes a second base frame and a scraper tool as described in any one of claims 1-3; The second base frame is a frame structure with through grooves for accommodating ceramic tiles; The scraper tool is mounted on the second base frame via the lifting assembly, with the bottom end of the toothed scraper facing the through groove, and the height of the bottom end of the toothed scraper from the through groove can be adjusted by the lifting assembly.

8. The mortar spreading device for large-format ceramic tiles according to claim 7, characterized in that: The second base frame is also equipped with at least one second measuring component for measuring the height of the scraper tool; The second measuring component includes two limiting plates arranged in a mirror symmetry, the two limiting plates extending vertically upward, and the sides of the limiting plates are engraved with first scale lines for measurement, or the sides of the limiting plates are equipped with scale rulers for measurement. The suspension rod is located between the two limiting plates.

9. A mortar spreading device for wall tile laying, characterized in that: Includes the scraping tool as described in any one of claims 1-3; It also includes a mounting plate assembly for securing the nail to the wall, the mounting plate assembly being fitted to one end of the suspension rod; The mounting plate assembly includes an extension sleeve for mounting at the end of the suspension rod, a smooth rod perpendicularly inserted through the extension sleeve, and a mounting plate fixed at the bottom end of the smooth rod; the mounting plate has a first elongated hole for engaging a nail.

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