A paving tool for tile adhesive mortar

Abstract

The utility model discloses a paving tool for tile sticking mortar, which comprises a support, walking wheels arranged on both sides of the support, at least two walking wheels installed on one side of the support, the walking wheels allowing the support to slide smoothly, a paving rake plate horizontally installed at the front end of the support, rake teeth of the paving rake plate pointing downward for spreading the mortar, at least one end positioning plate longitudinally installed on the side of the paving rake plate close to a wall surface or tiles that have been paved, the end positioning plate being used for positioning the walking route of the paving tool and preventing the mortar from overflowing onto the tiles that have been paved, a handle arranged on the top of the support for facilitating workers to hold the paving tool, a flow guide plate installed at the bottom of the support, the flow guide plate being used for preliminarily spreading the mortar before the paving rake plate spreads the mortar, and improving the overall paving effect. The utility model has good uniformity and flatness of the spread mortar, high working efficiency, and flexibility in adapting to tiles of various sizes.

Description

Technical Field

[0001] This utility model relates to the field of mortar spreading technology, and in particular to a tool for spreading mortar for tile bonding. Background Technology

[0002] Traditionally, floor tiles are laid using the dry-laying method, which requires a large amount of mortar, increases floor height, involves many steps, and has low construction efficiency. Nowadays, water and electrical lines in commercial buildings are pre-installed, allowing floor tiles to be laid directly on the subfloor. The thin-set method is commonly used nowadays. This method uses a notched trowel to spread mortar, creating even raised stripes on the floor, ensuring a strong bond between the tiles and the subfloor. This process can control the hollow tile rate to within 3%, and it involves fewer steps and has high construction efficiency.

[0003] Traditionally, when laying ceramic tiles, stone slabs, or slabs, mortar is often spread manually. Workers use a serrated plastering tool to spread the mortar evenly. However, manual work is prone to problems due to variations in the angle and stability of the worker's hand, leading to inconsistent mortar thickness, uneven spreading, and low efficiency due to the small size of the tools. This tool can solve the problem of uneven spreading thickness to some extent while improving operational efficiency.

[0004] Among existing mortar spreading tools, such as the Chinese utility model patent with application number CN202120175353.0, which discloses a mortar leveling tool for paving bricks, a sleeve plate is slidably connected inside the sleeve plate, and the bottom surface of the mortar leveling tool is provided with several equidistant scraping teeth. A connecting rod is fixedly provided on the left outer wall of the sleeve plate, and a fixing block is provided at the left end of the connecting rod. An installation block is fitted on the outer wall of the fixing block, and the outer wall of the fixing block is slidably installed inside the installation block through several limiting guide rods. A transmission screw is threadedly connected to the upper end of the fixing block, and both ends of the transmission screw are rotatably installed on the inner wall of the installation block. The left end of the transmission screw passes through and extends to the left side of the installation block. Although this device can be used for mortar spreading, it still has the following problems:

[0005] 1. Without positioning components, the accuracy is easily affected by human error. The handle for manual operation is far from the end of the scraper plate, making the end of the scraper plate difficult to control. Furthermore, without positioning components, it is difficult to make the scraper plate move parallel and in a straight line during manual operation, which affects the scraping quality.

[0006] 2. The mortar piled up in clumps after being poured out, and it has not been spread out evenly. The single scraper design may result in uneven scraping, requiring multiple operations to achieve the desired effect. This leads to high labor intensity and low work efficiency for construction workers.

[0007] 3. Because multiple metal parts are inside the sleeve plate and mounting block, mortar residue can easily accumulate. Cleaning requires disassembling multiple parts, making maintenance and cleaning difficult, time-consuming, and labor-intensive. The transmission screw and positioning components may wear or rust due to mortar intrusion, resulting in high maintenance costs.

[0008] 4. The fixed width of the trowel plate limits its applicability to laying floor tiles of different widths, making it unsuitable for various applications. Utility Model Content

[0009] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a mortar spreading tool for tile bonding mortar with uniform mortar spreading thickness and high operation efficiency.

[0010] This utility model is achieved through the following technical solution:

[0011] A tool for spreading mortar for floor tiles, comprising:

[0012] support;

[0013] At least two wheels are installed on both sides of the bracket to ensure smooth sliding of the bracket;

[0014] The paving rake is installed horizontally at the front end of the support, with the rake teeth facing downwards, and is used to spread the mortar evenly.

[0015] At least one end positioning plate is installed longitudinally on the side of the paving rake that is close to the wall or the already laid floor tiles, to position the paving tool's travel path and prevent mortar from overflowing onto the laid floor tiles.

[0016] The handle, located at the top of the support, makes it easy for workers to grip the paving tools.

[0017] Furthermore, a guide plate is installed at the bottom of the bracket. The guide plate has a "V" shaped structure, with the tip of the "V" shaped structure facing the rear of the bracket.

[0018] Furthermore, the bottom of the vertical baffle of the guide plate is inward to form an inverted cone surface, and the height difference between the bottom of the vertical baffle of the guide plate and the ground is the mortar spreading thickness.

[0019] Furthermore, at least one movable rake plate is slidably mounted laterally on the paving rake plate. The rake tooth height and tooth spacing of the movable rake plate and the paving rake plate are the same. The movable rake plate is used to extend the paving width of the paving rake plate, and the end positioning plate is installed at the end of the movable rake plate in the extension direction.

[0020] Furthermore, the length of the paving rake is greater than the width of the support frame and the floor tiles.

[0021] Furthermore, the paving rake plate is provided with at least two movable rake plate positioning studs, and several adjustment holes are arranged horizontally on the movable rake plate. The movable rake plate is positioned by passing through the adjustment holes and being tightened by fixing nuts.

[0022] Furthermore, the distance between the positioning studs of the two movable rake plates is a multiple of the distance between the rake teeth;

[0023] Among the aforementioned adjustment holes, the distance between two adjacent adjustment holes is the tooth spacing of the rake teeth.

[0024] Furthermore, the top of the fixing nut is sealed, and the screw hole is located at the bottom.

[0025] Furthermore, the height difference between the bottom of the end positioning plate and the ground is the mortar spreading thickness;

[0026] The end positioning plate has a chamfer on the outer side of the tail.

[0027] Furthermore, the wheel surface of the walking wheel is narrowed into a "V" shape.

[0028] The working principle of this utility model:

[0029] This utility model has four walking wheels (2) installed below the four top corners of the bracket (1), and the handle (6) welded to the top of the bracket (1) to form the main structure of the paving tool. A paving rake (3) with a length exceeding the width of the bracket (1) is fixedly installed at the front end of the bracket (1) as a paving component. End positioning plates (5) are installed on both sides of the paving rake (3). The end positioning plate (5) close to the side of the already laid floor tiles or wall is used as the positioning end, and the other end positioning plate (5) is used as a mortar overflow baffle. The paving tool moves backward along the positioning end of the end positioning plate (5) to achieve mortar paving.

[0030] This utility model adjusts the paving width by means of a movable rake plate (4). The movable rake plate (4) is close to the front of the paving rake plate (3). The movable rake plate (4) is detachably installed on the movable rake plate positioning studs (31) at both ends of the paving rake plate (3) through adjustment holes (41). The distance between the two movable rake plate positioning studs (31) and the two adjacent adjustment holes (41) is the same as the rake tooth spacing, so that after each adjustment of the movable rake plate (4), the rake teeth of the paving rake plate (3) and the movable rake plate (4) can overlap front and back.

[0031] This utility model uses a guide plate (7) to initially spread the mortar. The height difference between the bottom of the vertical baffle of the guide plate (7) and the ground is the mortar spreading thickness. The mortar exceeding the spreading height is squeezed by the guide plate (7) and guided to both sides of the support (1). The mortar is spread once in advance before spreading with the spreading rake plate (3) and the movable rake plate (4).

[0032] When the construction worker holds the paving tool and pulls it backward parallel to the side of the laid floor tiles or wall, the end positioning plate (5) near the side of the laid floor tiles or wall should be kept close to the floor tiles or wall to ensure that the paving tool moves parallel and without tilting. Simultaneously, the paving rake (3) and the movable rake (4) move backward, scraping mortar exceeding the height of the rake teeth backward, leveling the mortar, and then scraping it into stripes through the rake teeth. Scraping these stripes ensures that the mortar is evenly distributed on the base layer, avoiding localized hollow areas or unevenness. The gaps between the striped mortar relieve the expansion and contraction stress of the floor tiles caused by temperature changes.

[0033] The advantages of this utility model compared to the prior art are:

[0034] 1. This utility model improves the uniformity and flatness of paving by means of the synergistic effect of the guide plate (7), the paving rake plate (3) and the end positioning plate (5), ensuring that the mortar paving thickness is consistent and avoiding local hollowing or unevenness after the floor tiles are laid.

[0035] 2. The tool design of this utility model simplifies the paving process, reduces manual operation time and physical exertion, and the guide plate (7) pre-spreads excess mortar, reducing subsequent paving resistance, further optimizing the operation process and significantly improving work efficiency.

[0036] The length of the paving rake (3) is greater than the width of commonly used floor tiles, ensuring that it can be used for paving most floor tiles without adjusting the paving width, reducing adjustment time and improving work efficiency.

[0037] 3. The movable rake plate (4) of this utility model can adjust the paving width laterally. The paving width can be adjusted by adjusting the fixed position of the movable rake plate (4) through the adjustment hole (41), which can flexibly adapt to various sizes of floor tiles and enhance the versatility of the tool.

[0038] 4. The end positioning plate (5) of this utility model effectively prevents mortar from overflowing onto the laid floor tiles or the outer ground, keeping the work area clean and reducing cleaning work.

[0039] The end positioning plate (5) has an outer chamfer (51) at the tail, which is designed to allow the tool to pass smoothly through the tile joints, preventing collisions or jamming and protecting the laid tiles.

[0040] 5. The walking wheel of this utility model adopts a "V" shaped structure, which reduces the contact area, increases the pressure, reduces the degree of undulation when the tool moves, and ensures that the paving is flat.

[0041] 6. The guide plate (7) of this utility model has a pre-leveling function. The guide plate (7) has a "V" shaped structure with the bottom inward to form an inverted cone surface, which guides the excess mortar to both sides and performs preliminary leveling before paving, thereby improving the overall paving effect. Attached Figure Description

[0042] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0043] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0044] Figure 3 This is a schematic diagram showing the moving direction of the movable rake plate of this utility model;

[0045] Figure 4 This is an exploded view of the present invention;

[0046] Figure 5 This is one of the usage state diagrams of this utility model;

[0047] Figure 6 This utility model Figure 5 A magnified view of a section at point A in the middle;

[0048] Figure 7 This is the second diagram showing the usage state of this utility model.

[0049] Numbering on the map:

[0050] 1-Frame; 2-Wheel;

[0051] 3-Spreading rake plate, 31-Modible rake plate positioning stud;

[0052] 4-Modible rake plate, 41-Adjustment hole;

[0053] 5-End positioning plate, 51-Chamfer;

[0054] 6-Handle; 7-Baffle; 8-Fixing nut. Detailed Implementation

[0055] To enable those skilled in the art to better understand the technical solution of this utility model, the specific embodiments are described in detail below with reference to the accompanying drawings.

[0056] Example 1:

[0057] like Figure 1-7 As shown, a mortar spreading tool for floor tiles includes a support 1, four wheels 2, a spreading rake 3, two movable rakes 4, two end positioning plates 5, and a handle 6.

[0058] In an embodiment, such as Figure 1-4 As shown, the support frame 1 has an "H" shaped structure or a rectangular frame structure. Four wheels 2 are installed below the four top corners of the support frame 1, and the handle 6 is welded to the center of the top of the support frame 1 to form the main structure of the paving tool.

[0059] The support frame 1 is made of aluminum alloy square tube or aluminum alloy sheet bent into shape, and the handle 6 is made of aluminum alloy round tube. While ensuring the structural strength of the paving tool, the weight of the paving tool is reduced, so that construction workers can use the paving tool easily.

[0060] In this embodiment, the wheel surface of the walking wheel 2 is narrowed into a "V" shape to reduce the contact area between the walking wheel 2 and the ground and increase the pressure. This is used to reduce the impact of mortar on the rolling of the walking wheel 2 and prevent excessive undulation during the movement of the paving tool, which would affect the flatness of the mortar paving.

[0061] In an embodiment, such as Figure 4 As shown, the paving rake 3 and the movable rake 4 are made of angle steel to ensure the structural strength of the paving rake 3 and the movable rake 4, so that the paving rake 3 and the movable rake 4 are not easily bent during the scraping of mortar.

[0062] like Figure 1 , 3 As shown in Figure 4, the rake teeth are set at the bottom of the vertical surface of the angle steel. A horizontal panel is welded to the front end of the bracket 1 to serve as the mounting platform for the paving rake 3. The rear part of the horizontal panel of the paving rake 3 is mounted on the horizontal panel by bolts. Two movable rake positioning studs 31 are set at each end of the front part of the horizontal panel of the paving rake 3. The horizontal panel of the movable rake 4 is movably mounted on the horizontal panel of the paving rake 3. Several adjustment holes 41 are arranged horizontally on the movable rake 4. The two movable rake plates 4 are respectively mounted on the movable rake positioning studs 31 at both ends of the paving rake 3 through the adjustment holes 41, and are fixed by screwing the fixing nuts 8 into the movable rake positioning studs 31.

[0063] like Figure 3 As shown, after the paving rake 3 and the movable rake 4 are installed, the height and spacing of the rake teeth are consistent. The distance between the positioning studs 31 of the two movable rake plates is a multiple of the rake tooth spacing, and the distance between two adjacent adjustment holes 41 is the rake tooth spacing. This ensures that after each adjustment of different dimensions, the rake teeth of the paving rake 3 and the movable rake 4 can overlap front and back, ensuring uniform mortar spreading.

[0064] like Figure 5 As shown, the length of the paving rake 3 is greater than the width of the support 1 and the commonly used floor tiles, ensuring that the width of the paved mortar is greater than the width of the commonly used floor tiles, thus ensuring that the floor tiles are laid flat. If the floor tiles to be laid are large-sized tiles, the position of the movable rake 4 can be adjusted so that the width of the paving rake 3 and the two movable rake 4 is slightly greater than the width of the large-sized floor tiles.

[0065] In an embodiment, such as Figure 1 , 3As shown, the end positioning plate 5 is vertically installed at the outer end of the movable rake plate 4 to position the paving tool's travel path and prevent mortar from overflowing onto the laid tiles. The height difference between the bottom of the end positioning plate 5 and the ground is the mortar paving thickness, preventing the end positioning plate 5 from blocking the mortar paving at the tile joints. A chamfer 51 is opened on the outer side of the tail of the end positioning plate 5 so that the end positioning plate 5 can smoothly pass through the tile joints, preventing the end positioning plate 5 from colliding with the tile joints or getting stuck on the wall during the movement of the paving tool, causing the laid tiles to be misaligned or crooked, damaging the completed work, and causing construction workers to waste time and energy to rework.

[0066] In this embodiment, the top of the fixing nut 8 is sealed, and the screw hole is opened at the bottom to prevent mortar from seeping into the positioning stud 31 of the movable rake plate, thus bonding the threads of the positioning stud 31 of the movable rake plate to the fixing nut 8.

[0067] Example 2:

[0068] In an embodiment, such as Figure 2 , 4 As shown, the difference from Embodiment 1 is that a guide plate 7 is installed at the center of the bottom of the bracket 1. The guide plate 7 has a "V" shaped structure, with the tip of the "V" shaped structure facing the rear of the bracket 1 and the tail of the "V" shaped structure extending to the inner sides of the front end of the bracket 1.

[0069] like Figure 2 , 4 As shown, the guide plate 7 is made of bent metal sheet. The height difference between the bottom of the vertical baffle of the guide plate 7 and the ground is the mortar spreading thickness. The mortar exceeding the spreading thickness is squeezed by the guide plate 7 and guided to both sides of the support 1. The mortar is spread once in advance before spreading the paving rake plate 3 and the movable rake plate 4 to ensure the spreading effect of the paving rake plate 3 and the movable rake plate 4.

[0070] In this embodiment, the bottom of the vertical baffle of the guide plate 7 is inward to form an inverted cone surface. This causes the mortar exceeding the paving height to be subjected to outward compressive force as well as downward compressive force from the cone surface. This is used to improve the guiding effect of the guide plate 7 and prevent the mortar from accumulating on the surface of the guide plate 7 beyond its height, which would affect the operation of construction personnel and result in poor guiding effect.

[0071] The working principle of this utility model is as follows:

[0072] Step 1: First, unscrew the fixing nut 8 of the movable rake plate 4. Adjust the position of the movable rake plate 4 according to the width of the floor tile to be laid. Adjust the width of the paving rake plate 3 and the movable rake plate 4 to be slightly larger than the width of the floor tile. Then tighten the fixing nut 8 to fix the movable rake plate 4.

[0073] Step 2: The construction workers pour the mixed mortar onto the tiling location, pouring it in the direction of tiling the floor tiles.

[0074] Step 3: The construction worker holds the middle of the handle 6, with the paving rake 3 and movable rake 4 facing the starting position. Then, the outer side of the end positioning plate 5, which is close to the side of the paved floor tile or wall, is placed close to the side of the floor tile or wall. Then, the worker holds the handle 6 and presses down on the paving tool, pulling it backward parallel to the side of the paved floor tile or wall until the paving area is larger than the floor tile, at which point the floor tile can be laid.

[0075] Before laying the first floor tile, if the mortar at the end is uneven, you can spread the mortar evenly by sliding the spreading tool back and forth, or use a plastering tool to smooth the mortar at the end in advance, and then proceed with step 3 above.

[0076] Step 4: After paving work is paused or completed, wash the paving tools promptly to prevent mortar from hardening on the tools, making them difficult to clean and affecting future use.

[0077] It should be noted that the technical solution of this utility model has been described in detail above, and the principle of this utility model has been described. The above description of the working principle is only for the purpose of helping to understand the core idea of ​​this utility model. It should be pointed out that for those skilled in the art, improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

[0078] Modifications or additions to the described specific embodiments, or substitutions made by those skilled in the art to which this utility model pertains, can be made or replaced in a similar manner, as long as they do not deviate from the structure of this utility model or exceed the scope defined by the claims, and all such modifications and additions shall fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent shall be determined by the appended claims.

Claims

1. A tool for spreading mortar for tile adhesive, characterized in that, include: Support (1); At least two walking wheels (2) are installed on both sides of the bracket (1) to make the bracket (1) slide smoothly; The paving rake (3) is installed horizontally at the front end of the support (1), with the rake teeth of the paving rake (3) facing downwards, for spreading the mortar evenly; At least one end positioning plate (5) is installed longitudinally on the side of the paving rake (3) near the wall or the already laid floor tiles to position the paving tool's travel path and prevent mortar from overflowing onto the laid floor tiles. The handle (6) is set on top of the support (1) to facilitate workers to grip the paving tool.

2. The tile adhesive mortar spreading tool according to claim 1, characterized in that: The bracket (1) is equipped with a guide plate (7) at the bottom. The guide plate (7) has a "V" shaped structure, with the tip of the "V" shaped structure facing the rear of the bracket (1).

3. The tile adhesive mortar spreading tool according to claim 2, characterized in that: The bottom of the vertical baffle of the guide plate (7) is inward to form an inverted cone surface, and the height difference between the bottom of the vertical baffle of the guide plate (7) and the ground is the mortar spreading thickness.

4. The tile adhesive mortar spreading tool according to claim 1, characterized in that: At least one movable rake plate (4) is slidably installed on the paving rake plate (3). The rake plate (4) and the paving rake plate (3) have the same rake tooth height and tooth spacing. The movable rake plate (4) is used to extend the paving width of the paving rake plate (3). The end positioning plate (5) is installed at the end of the movable rake plate (4) in the extension direction.

5. The tile adhesive mortar spreading tool according to claim 4, characterized in that: The length of the paving rake (3) is greater than the width of the support (1) and the floor tile.

6. The tile adhesive mortar spreading tool according to claim 4, characterized in that: The paving rake (3) is provided with at least two movable rake positioning studs (31), and the movable rake (4) is provided with several adjustment holes (41) arranged horizontally. The movable rake (4) is positioned by inserting the movable rake positioning studs (31) through the adjustment holes (41) and is tightened and fixed by the fixing nut (8).

7. The tile adhesive mortar spreading tool according to claim 6, characterized in that: The distance between the two movable rake plate positioning studs (31) is a multiple of the rake tooth spacing; Among the plurality of adjustment holes (41), the distance between two adjacent adjustment holes (41) is the tooth spacing of the rake teeth.

8. The tile adhesive mortar spreading tool according to claim 6, characterized in that: The top of the fixing nut (8) is sealed, and the screw hole is opened at the bottom.

9. The tile adhesive mortar spreading tool according to claim 1, characterized in that: The height difference between the bottom of the end positioning plate (5) and the ground is the mortar spreading thickness; The end positioning plate (5) has a chamfer (51) on the outer side of the tail.

10. The tile adhesive mortar spreading tool according to claim 1, characterized in that: The walking wheel (2) has a narrowed wheel surface in a "V" shape.

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