Hand-held building joint cleaner
By adopting an embedded roller and grinding disc co-linear design and a dust collection structure in the grout cleaning machine, the problem of tiles being scratched due to vibration and displacement during use has been solved, achieving stable linear positioning and efficient dust adsorption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINWANG TOOLS JIANGSU CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-14
AI Technical Summary
Existing grout cleaning machines are prone to shifting due to vibration during use, which can scratch surrounding tiles and result in poor straight-line positioning.
It adopts a design with multiple embedded rollers and grinding discs on the same line. The outer rim of the embedded rollers is stepped. Together with the pressing component and dust collection structure, it ensures linear positioning and dust adsorption.
It achieves stable control of the tile cleaning machine in the linear stepping direction, avoids scratching the tiles, and effectively absorbs dust, improving the convenience and effectiveness of operation.
Smart Images
Figure CN224488682U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of home decoration tools technology, and relates to a handheld building crack cleaning machine. Background Technology
[0002] After home renovation is completed and floor tiles are laid, many households will apply grout sealant to the gaps between the tiles. Before doing so, the gaps between the tiles can be cut. To facilitate this process, handheld grout sealant machines have been designed.
[0003] Existing grout cleaning machines are prone to shifting due to vibration during use, which can scratch the surrounding tiles and therefore needs improvement. Utility Model Content
[0004] The purpose of this invention is to address the problem of poor linear positioning effect of existing crack cleaning machines by proposing a handheld building crack cleaning machine.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A handheld building crack cleaning machine includes a base and a machine body mounted on the base. The machine body includes a casing, a motor inside the casing, and a drive housing at the front end of the casing. A drive shaft rotates laterally within the drive housing via bearings. A reducer is connected to the output end of the motor. The reducer transmits vertical rotational power to the drive shaft via a bevel gear set. A grinding disc is connected to the end of the drive shaft. Multiple stepping rollers and embedded rollers are rolled on the base. All embedded rollers and grinding discs are collinear. The machine body is equipped with a dust-collecting structure for adsorbing dust.
[0007] In the aforementioned handheld building crack cleaning machine, the outer rim of the embedded roller is stepped in shape with a larger diameter in the middle and smaller diameters at both ends.
[0008] In the aforementioned handheld building crack cleaning machine, the base is further provided with a pressing component. One end of the crack cleaning machine body is hinged to the base, and the pressing component is located at the other end of the crack cleaning machine body. The pressing component includes a guide block, a guide plate, and a limiting body. The guide plate and the limiting body are fixed to the base in a staggered manner. The guide plate has an arc-shaped guide opening. The guide block is fixed to the crack cleaning machine body. The guide block has a guide body that slides into the arc-shaped guide opening. The limiting body is located below the guide block to limit the lowest position of the guide block's descent.
[0009] In the aforementioned handheld building crack cleaning machine, the limiting body includes a fixed body and a rotating body. The fixed body is fixedly mounted on the base, and a threaded hole is provided on the top of the fixed body. The rotating body is provided with a threaded body at the bottom, and the threaded body is mounted on the fixed body by rotating through the thread.
[0010] In the aforementioned handheld building crack cleaning machine, the guide block includes an inner guide sub-block fixed on the machine body and an outer guide sub-block fixed on the inner guide sub-block by bolts. The guide body is disposed on the inner guide sub-block, and the inner and outer guide sub-blocks are attached to the inner and outer sides of the guide plate.
[0011] In the aforementioned handheld building crack cleaning machine, an insert is fixedly provided at the bottom of the arc-shaped guide opening of the guide plate, and a spring with a spring-like tendency to spring open is provided between the insert and the guide body.
[0012] In the aforementioned handheld building crack cleaning machine, the dust collection structure includes a blower, a protective cover, a ventilation pipe, and a storage bag fixed on the machine body. The blower and the protective cover are located on both sides of the front end of the machine body. The blower and the protective cover are connected by a ventilation pipe. The bottom of the protective cover has an opening, and the inside of the protective cover has an inner cavity for accommodating the grinding disc. The protective cover will cover the grinding disc from top to bottom, and the bottom of the grinding disc will be exposed from the opening.
[0013] In the aforementioned handheld building crack cleaning machine, the protective cover is provided with two sets of curved baffles. The curved baffles are located at the connection between the protective cover and the ventilation pipe, and the grinding disc is located between the two sets of curved baffles. The curved baffles separate the ventilation pipe from the inner cavity to form a partition.
[0014] In the aforementioned handheld building joint cleaning machine, the cutting position of the front end of the grinding disc during the joint cutting process is located in the cavity.
[0015] In the aforementioned handheld building crack cleaning machine, the two ends of the drive shaft are used to drive the rotation of the blower and the grinding disc.
[0016] In the aforementioned handheld building crack cleaning machine, the blower has a dust outlet at its tail, and the storage bag is detachably connected to the dust outlet.
[0017] Compared with existing technologies, this sewing machine has proper control in the linear stepping direction, which facilitates the operator's work. Attached Figure Description
[0018] Figure 1 This is the first structural schematic diagram of the sewing machine;
[0019] Figure 2 This is a schematic diagram of the second structure of the sewing machine;
[0020] Figure 3 This is a structural diagram of the sewing machine behind the hidden drive housing;
[0021] Figure 4 This is a structural schematic diagram of the hidden outer guide block of this sewing machine;
[0022] Figure 5This is a structural diagram of the hidden base of the sewing machine;
[0023] Figure 6 This is a structural schematic diagram of the pressure-down component;
[0024] Figure 7 This is a schematic diagram of the structure behind the protective cover of the hidden part of this sewing machine;
[0025] In the diagram: 1. Base; 2. Sewing machine body; 3. Guide block; 4. Guide plate; 5. Limiting body; 6. Arc-shaped guide opening; 7. Guide body; 8. Fixing body; 9. Rotating body; 10. Inner guide sub-block; 11. Outer guide sub-block; 12. Embedded body; 13. Spring; 14. Blower; 15. Protective cover; 16. Ventilation pipe; 17. Opening; 18. Inner cavity; 19. Curved baffle; 20. Partition cavity; 21. Dust outlet; 22. Bearing; 23. Drive shaft; 24. Bevel gear; 25. Grinding disc; 26. Stepping roller; 27. Embedded roller. Detailed Implementation
[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0027] like Figures 1-3 As shown, this handheld building crack cleaning machine includes a base 1 and a crack cleaning machine body 2 mounted on the base. The crack cleaning machine body includes a body shell, a motor mounted inside the body shell, and a drive shell mounted at the front end of the body shell. A drive shaft 23 is horizontally rotatable inside the drive shell via a bearing 22. A reducer is connected to the output end of the motor. The reducer transmits vertical rotational power to the drive shaft via a set of bevel gears 24. A grinding disc 25 is connected to the end of the drive shaft. Multiple stepping rollers 26 and embedded rollers 27 are rolled on the base. All embedded rollers and grinding discs are collinear. The crack cleaning machine body is equipped with a dust suction structure for adsorbing dust.
[0028] It is very difficult to use a grinding disc to position the step direction, because the grinding disc will vibrate when rotating at high speed. When the operator moves the grout cleaning machine forward, the grinding disc may deviate from the tile joint, causing the tile to be scratched. Therefore, this product uses multiple embedded rollers. These embedded rollers are collinear with the grinding disc, so that the embedded rollers will achieve a good straight positioning effect after rolling into the tile joint.
[0029] The outer rim with the embedded rollers is stepped, with a larger diameter in the middle and smaller diameters at both ends.
[0030] The larger diameter part of the embedded roller fits perfectly into the tile grout, while the smaller diameter parts on both sides of the embedded roller roll onto the surface of the tile. The "convex" shaped embedded roller fits into the "concave" shaped tile grout, making it less prone to shifting. Moreover, because the gaps between tiles are small, if the entire embedded roller were embedded into the grout, the pressure on the grout would be very high. Therefore, this concave-convex design allows the two sides of the embedded roller to adhere to the tile, overcoming the problem of excessive pressure.
[0031] like Figure 1 and Figures 4-6 As shown, the base is also equipped with a pressing component, which is located at the other end of the sewing machine body. The pressing component includes a guide block 3, a guide piece 4, and a limiting body 5. The guide piece and the limiting body are fixed to the base in a staggered manner. The guide piece has an arc-shaped guide opening 6 (located on the rotation path of the sewing machine body around the base). The guide block is fixed to the sewing machine body. The guide block has a guide body 7 that slides into the arc-shaped guide opening. The limiting body is located below the guide block to limit the lowest position of the guide block's descent.
[0032] The limiting body includes a fixed body 8 and a rotating body 9. The fixed body is fixedly mounted on the base, and a threaded hole is provided on the top of the fixed body. The rotating body is provided with a threaded body at the bottom, and the threaded body is mounted on the fixed body by rotating through the thread.
[0033] The guide block includes an inner guide block 10 fixed on the body of the sewing machine and an outer guide block 11 fixed on the inner guide block by bolts. The guide body is set on the inner guide block, and the inner and outer guide blocks are attached to the inner and outer sides of the guide plate.
[0034] An insert 12 is fixedly provided at the bottom of the arc-shaped guide opening of the guide piece, and a spring 13 with a spring-like tendency to spring open is provided between the insert and the guide.
[0035] During use, adjust the height of the rotating body on the fixed body according to the actual usage environment where the seam cleaning machine needs to press down the seam. Then, hold the seam cleaning machine and press it down while cutting the seam. The main body of the seam cleaning machine will flip around the arc-shaped guide opening and the hinge position relative to the base. With a little force, the main body of the seam cleaning machine will be pressed down to the bottom until the guide block contacts the limit body and is restricted by it. The restricted pressing height is the required cutting depth. As long as it is pressed down to the bottom, the cutting depth will be a constant dimension.
[0036] Because the height of the limiting body can be adjusted at will, it can adapt to various cutting depth requirements.
[0037] like Figure 1 , Figure 2 , Figure 6As shown, the dust collection structure includes a blower 14, a protective cover 15, a ventilation pipe 16, and a storage bag fixed on the body of the grout cleaning machine. The blower and the protective cover are located on both sides of the front end of the grout cleaning machine body. The blower and the protective cover are connected by a ventilation pipe. The bottom of the protective cover has an opening 17. The inside of the protective cover has an inner cavity 18 for accommodating the grinding disc. The protective cover will cover the grinding disc from top to bottom, and the bottom of the grinding disc is exposed from the opening.
[0038] The blower and protective cover are respectively located on the front sides of the sewing machine body, which makes the center of gravity control better. Since the sewing machine needs to press forward and downward during the working process, the blower and protective cover at the front make the head of the sewing machine heavier, so pressing down is more effortless.
[0039] Meanwhile, because the protective cover covers the grinding disc, the dust generated during the cleaning process is not easily dispersed, and the blower will suck away the dust the moment it is generated.
[0040] The protective cover has two sets of curved baffles 19 inside. The curved baffles are set at the connection between the protective cover and the ventilation pipe. The grinding plate is located between the two sets of curved baffles. The curved baffles separate the ventilation pipe from the inner cavity to form a partition 20.
[0041] During the grinding process, the cutting edge of the brick joint at the front end is located in the cavity.
[0042] During the grinding process between the grinding pad and the tile grout, the front part is the first to be ground, so a lot of dust will be generated there. Therefore, a curved baffle is used to separate the inner cavity into a separate compartment, which is located in front of the grinding pad. This compartment will isolate the largest amount of dust generated there and be instantly sucked away by the blower, achieving a better adsorption effect.
[0043] The two ends of the drive shaft are used to drive the rotation of the blower and the grinding disc.
[0044] Because the blower is located at the front of the grout cleaning machine, the blower and the grinding disc can share the same motor for driving. Since the vacuuming and grout cleaning processes need to be performed synchronously, the two ends of the drive shaft can transmit power to the blower and the grinding disc respectively to make them rotate.
[0045] The blower has a dust outlet 21 at the tail end, and the storage bag is detachably connected to the dust outlet.
[0046] It should be understood that in the claims and description of this utility model, all instances of "comprising..." should be understood as having an open meaning, that is, their meaning is equivalent to "containing at least...", and should not be understood as having a closed meaning, that is, their meaning should not be understood as "containing only...".
[0047] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
Claims
1. A handheld building joint cleaning machine, characterized in that: The machine includes a base and a grout cleaning machine body mounted on the base. The grout cleaning machine body includes a body shell, a motor mounted inside the body shell, and a drive shell mounted at the front end of the body shell. A drive shaft is mounted inside the drive shell and rotates laterally via bearings. A reducer is connected to the output end of the motor. The reducer transmits vertical rotational power to the drive shaft via a bevel gear set. A grinding disc is connected to the end of the drive shaft. Multiple stepping rollers and embedded rollers are rolled on the base. All embedded rollers and grinding discs are collinear. The grout cleaning machine body is equipped with a dust-collecting structure for adsorbing dust and dirt.
2. The handheld building joint cleaning machine according to claim 1, characterized in that: The outer rim of the embedded roller is stepped, with a larger diameter in the middle and smaller diameters at both ends.
3. A handheld building joint cleaning machine according to claim 1 or 2, characterized in that: The base is also equipped with a pressing component. One end of the sewing machine body is hinged to the base, and the pressing component is located at the other end of the sewing machine body. The pressing component includes a guide block, a guide plate, and a limiting body. The guide plate and the limiting body are fixed to the base in a staggered manner. The guide plate has an arc-shaped guide opening. The guide block is fixed to the sewing machine body. The guide block has a guide body that slides into the arc-shaped guide opening. The limiting body is located below the guide block to limit the lowest position of the guide block's descent.
4. A handheld building joint cleaning machine according to claim 3, characterized in that: The limiting body includes a fixed body and a rotating body. The fixed body is fixedly mounted on the base, and a threaded hole is provided on the top of the fixed body. The rotating body has a threaded body at the bottom, and the threaded body is mounted on the fixed body by rotating through the thread.
5. A handheld building joint cleaning machine according to claim 3, characterized in that: The guide block includes an inner guide sub-block fixed on the body of the crack cleaning machine and an outer guide sub-block fixed on the inner guide sub-block by bolts. The guide body is set on the inner guide sub-block, and the inner and outer guide sub-blocks are attached to the inner and outer sides of the guide plate.
6. A handheld building joint cleaning machine according to claim 3, characterized in that: The bottom of the arc-shaped guide opening of the guide piece is also fixedly provided with an insert, and a spring with a spring-like tendency to spring open is provided between the insert and the guide.
7. A handheld building joint cleaning machine according to claim 1 or 2, characterized in that: The dust collection structure includes a blower, a protective cover, a ventilation pipe, and a storage bag fixed on the body of the grout cleaning machine. The blower and the protective cover are located on both sides of the front end of the grout cleaning machine body. The blower and the protective cover are connected by a ventilation pipe. The bottom of the protective cover has an opening, and the inside of the protective cover has an inner cavity for accommodating the grinding disc. The protective cover will cover the grinding disc from top to bottom, and the bottom of the grinding disc will be exposed from the opening.
8. A handheld building joint cleaning machine according to claim 7, characterized in that: The protective cover has two sets of curved baffles inside. The curved baffles are set at the connection between the protective cover and the ventilation pipe. The grinding plate is located between the two sets of curved baffles. The curved baffles separate the ventilation pipe from the inner cavity to form a partition.
9. A handheld building joint cleaning machine according to claim 8, characterized in that: During the grinding disc cutting process, the cutting edge of the brick joint at the front end is located in the cavity.
10. A handheld building joint cleaning machine according to claim 7, characterized in that: The two ends of the drive shaft are used to drive the rotation of the blower and the grinding disc.