Improved floor grinding disc structure

Abstract

The utility model discloses an improved floor grinding disc structure which comprises a horizontally-arranged base disc, a plurality of elastic telescopic disc assemblies are rotationally connected to the base disc, grinding pieces are installed at the bottom ends of the elastic telescopic disc assemblies, a dustproof barrel is connected to the bottom end of the base disc, a blocking column is connected to the bottom of the dustproof barrel, and the elastic telescopic disc assemblies are connected to the blocking column. The outer edge of the elastic telescopic disc assembly is connected with an early warning column, the early warning column is located above the blocking column, and when the blocking column collides with the early warning column, the blocking column prevents the elastic telescopic disc assembly from rotating, and the grinding piece reaches the abrasion limit; the grinding disc has the advantages that the early warning columns and the blocking columns are designed on the basis of a traditional grinding disc, the positions of the early warning columns are continuously lowered along with continuous abrasion of the grinding disc, and the early warning columns finally collide with the blocking columns, so that the grinding disc stops working, and the purpose of early warning the abrasion limit of the grinding disc in advance is achieved.

Description

Technical field:

[0001] The utility model relates to the technical field of floor grinding equipment, in particular to an improved floor grinding disc structure. Background technology:

[0002] Floor grinding refers to the grinding process of concrete / stone / terrazzo / epoxy floors, which can effectively grind terrazzo, concrete surface, epoxy mortar layer and old epoxy floor, etc., to make the floor surface clean, bright and smoother, thereby improving the aesthetics of the floor. The commonly used floor grinding equipment is a floor grinder; the main component of a floor grinder is a grinding disc, and the core component of the grinding disc is a high-speed rotating grinding piece screwed to the bottom of the grinding disc. After a long period of operation, the grinding piece will be worn thin or even fall off and fly out at high speed, damaging the dust cover of the grinder and flying directly out, causing serious injuries. Therefore, the wear degree of the grinding piece should be checked regularly and replaced in time. However, in actual use, staff tend to forget to check. For this reason, the utility model provides an improved floor grinding disc structure to provide early warning of the wear limit of the grinding piece, thereby avoiding the occurrence of dangerous accidents. Utility model content:

[0003] The utility model aims to provide an improved floor grinding disc structure to solve the technical problem in the prior art that the grinding disc is easy to fall off and fly out at high speed after being worn, resulting in injuries.

[0004] The content of the utility model: an improved floor grinding disc structure, which includes a horizontally arranged base disc, a plurality of elastic telescopic disc assemblies rotatably connected on the base disc, a grinding sheet is installed at the bottom end of the elastic telescopic disc assembly, the elastic telescopic disc assembly is transmission-connected to a driving assembly, a dustproof cylinder is connected at the bottom end of the base disc, a blocking column is connected at the bottom of the dustproof cylinder, an early warning column is connected at the outer edge of the elastic telescopic disc assembly, the early warning column is located above the blocking column, and when the blocking column collides with the early warning column, the blocking column prevents the elastic telescopic disc assembly from rotating and the grinding sheet from reaching the wear limit.

[0005] Furthermore, the driving assembly includes a driven gear, the driven gear is fixedly connected to the elastic telescopic disc assembly, the driven gear is meshed with a gear shaft, and the gear shaft is drivingly connected to the motor.

[0006] Furthermore, the elastic telescopic disk assembly includes a driven shaft, which is rotatably connected to the base disk, a sliding hole is vertically opened at the bottom end of the driven shaft, a sliding rod is slidably connected in the sliding hole, a mounting disk is installed at the bottom end of the sliding rod, a spring groove is opened on the outer wall of the driven shaft, a limiting rod is connected to the sliding rod, the limiting rod is slidably connected to the spring groove up and down, a compression spring is vertically installed in the spring groove, and the compression spring is located above the limiting rod.

[0007] Furthermore, two or more positioning holes are provided on the installation plate, positioning pins matching the positioning holes are installed on the grinding sheet, and the positioning pins are inserted into the positioning holes.

[0008] Furthermore, the positioning pin and the positioning hole are clearance-fitted, and a magnet sheet is installed on the bottom surface of the mounting plate, and the magnet sheet magnetically adsorbs the grinding sheet.

[0009] Furthermore, a threaded through hole is provided on the grinding sheet.

[0010] The beneficial effects of the utility model are as follows: the utility model designs a warning column and a stop column on the basis of a traditional grinding disc. As the grinding disc is continuously worn, the position of the warning column is continuously lowered and eventually collides with the stop column, thereby stopping the grinding disc from working, thereby achieving the purpose of early warning of the wear limit of the grinding disc, prompting the operator to replace the grinding disc in time to avoid the occurrence of dangerous accidents. The utility model is safe and reliable and worthy of popularization and use. Description of the drawings:

[0011] Figure 1 It is an internal cutaway view of the stereogram of the utility model;

[0012] Figure 2 It is a top view of the utility model;

[0013] Figure 3 for Figure 2 Section view along AA;

[0014] In the figure, there are base plate 1, gear shaft 2, driven gear 3, driven shaft 4, slide rod 5, mounting plate 6, spring groove 7, compression spring 8, grinding sheet 9, positioning pin 10, magnet sheet 11, warning column 12, blocking column 13, dustproof cylinder 14, limit rod 15, and threaded through hole 16. Specific implementation method:

[0015] like Figure 1As shown, an improved floor grinding disc structure includes a horizontally arranged base disc 1, on which a plurality of elastic telescopic disc assemblies are rotatably connected, a grinding sheet 9 is installed at the bottom end of the elastic telescopic disc assembly, the elastic telescopic disc assembly is transmission-connected to a driving assembly, a dustproof cylinder 14 is connected to the bottom end of the base disc 1, a blocking column 13 is connected to the bottom of the dustproof cylinder 14, an early warning column 12 is connected to the outer edge of the elastic telescopic disc assembly, the early warning column 12 is located above the blocking column 13, when the blocking column 13 collides with the early warning column 12, the blocking column 13 prevents the elastic telescopic disc assembly from rotating, at which time the grinding sheet 9 reaches the wear limit.

[0016] like Figure 2 and Figure 3 As shown, the driving assembly includes a driven gear 3, which is fixedly connected to the elastic telescopic disk assembly, and the driven gear 3 is meshed with the gear shaft 2, and the gear shaft 2 is transmission-connected to the motor; the elastic telescopic disk assembly includes a driven shaft 4, which is rotationally connected to the base plate 1, and a sliding hole is vertically opened at the bottom end of the driven shaft 4, and a sliding rod 5 is slidably connected in the sliding hole, and a mounting disk 6 is installed at the bottom end of the sliding rod 5, and a spring groove 7 is opened on the outer wall of the driven shaft 4, and a limiting rod 15 is connected to the sliding rod 5, and the limiting rod 15 is slidably connected to the spring groove 7 up and down, and a compression spring 8 is vertically installed in the spring groove 7, and the compression spring 8 is located above the limiting rod 15.

[0017] In order to prevent the grinding sheet 9 from falling off, the grinding sheet 9 is better positioned, such as Figure 3 As shown, two or more positioning holes are provided on the mounting disk 6, and positioning pins 10 matching the positioning holes are installed on the grinding sheet 9, and the positioning pins 10 are inserted into the positioning holes; the positioning pins 10 and the positioning holes are clearance-fitted, and a magnet sheet 11 is installed on the bottom surface of the mounting disk 6, and the magnet sheet 11 magnetically attracts the grinding sheet 9. In order to facilitate the removal of the grinding sheet 9, a threaded through hole 16 is provided on the grinding sheet 9.

[0018] During specific operation, the motor drives the gear shaft 2 to rotate at high speed, and through the transmission of the driven gear 3, the driven shaft 4, the slide rod 5, the mounting plate 6 and other components, the grinding sheet 9 rotates at high speed to perform the grinding operation. As the grinding time progresses, the grinding sheet 9 is continuously worn thinner. When the grinding sheet 9 reaches the wear limit, the warning column 12 drops to the position of the stop column 13. The stop column 13 prevents the rotation of the warning column 12, thereby forcing the grinding sheet 9 to stop rotating. Now is the best time to replace the grinding sheet 9.

[0019] The above are only preferred examples of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved floor grinding disc structure, characterized in that: The invention comprises a horizontally arranged base plate (1), on which a plurality of elastic telescopic disc assemblies are rotatably connected, a grinding sheet (9) is installed at the bottom end of the elastic telescopic disc assembly, the elastic telescopic disc assembly is transmission-connected to a driving assembly, a dustproof cylinder (14) is connected at the bottom end of the base plate (1), a blocking column (13) is connected at the bottom of the dustproof cylinder (14), an early warning column (12) is connected at the outer edge of the elastic telescopic disc assembly, the early warning column (12) is located above the blocking column (13), and when the blocking column (13) collides with the early warning column (12), the blocking column (13) prevents the elastic telescopic disc assembly from rotating and the grinding sheet (9) reaches the wear limit.

2. An improved floor grinding disc structure according to claim 1, characterized in that: The driving assembly comprises a driven gear (3), the driven gear (3) is fixedly connected to the elastic expansion disc assembly, the driven gear (3) is meshed with a gear shaft (2), and the gear shaft (2) is drivingly connected to the motor.

3. An improved floor grinding disc structure according to claim 2, characterized in that: The elastic telescopic disk assembly comprises a driven shaft (4), the driven shaft (4) is rotatably connected to the base disk (1), a sliding hole is vertically opened at the bottom end of the driven shaft (4), a sliding rod (5) is slidably connected in the sliding hole, a mounting disk (6) is installed at the bottom end of the sliding rod (5), a spring groove (7) is opened on the outer wall of the driven shaft (4), a limiting rod (15) is connected to the sliding rod (5), the limiting rod (15) is slidably connected to the spring groove (7) up and down, a compression spring (8) is vertically installed in the spring groove (7), and the compression spring (8) is located above the limiting rod (15).

4. An improved floor grinding disc structure according to claim 3, characterized in that: Two or more positioning holes are provided on the installation plate (6), positioning pins (10) matching the positioning holes are installed on the grinding plate (9), and the positioning pins (10) are inserted into the positioning holes.

5. An improved floor grinding disc structure according to claim 4, characterized in that: The positioning pin (10) and the positioning hole are clearance-matched, and a magnet sheet (11) is installed on the bottom surface of the mounting plate (6), and the magnet sheet (11) magnetically attracts the grinding sheet (9).

6. An improved floor grinding disc structure according to claim 4, characterized in that: A threaded through hole (16) is provided on the grinding sheet (9).

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