A dust removal device for construction floor polishing construction

Abstract

The application belongs to the technical field of polishing construction dust removal equipment, and discloses a building floor polishing construction dust removal device, which comprises a grinding disc group, a motor provided with a protective cover on the outside, a first annular plate, a second annular plate, a dust suction cover, a lifting assembly and a dust suction assembly. The first annular plate is fixedly installed on the upper end of the grinding disc group, a first cavity is formed in the first annular plate, a circular pipe is circumferentially arranged on the upper end of the first annular plate, one end of the circular pipe is communicated with the first cavity, and a first dust conveying pipe is inserted into the circular pipe. The second annular plate is fixedly installed on the upper end of the first dust conveying pipe, a second cavity is formed in the second annular plate, the dust suction cover is circumferentially arranged on the first annular plate and the outside of the first annular plate, the spatial position of the second annular plate is adjusted through the lifting assembly, the dust diffusion area at different heights in the polishing process can be flexibly adapted, the suspended dust at different heights can be efficiently captured, and the overall dust removal effect is significantly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of dust removal equipment for grinding construction, and in particular to a dust removal device for grinding construction of building floors. Background Technology

[0002] Building floor grinding equipment is used to grind and polish building floors. It can effectively grind various floors such as terrazzo, granite, and concrete to achieve a smooth and flat finish. During the grinding process, dust is generated. To prevent the grinding dust from splashing around, a dust suppression device is used. Basic dust suppression devices typically spray water to reduce dust during the grinding process.

[0003] Chinese utility model patent CN223198699U discloses a dust removal device for building floor grinding, including a mounting shell. A grinding disc is movably mounted at the bottom of the inner cavity of the mounting shell, and a water spray transmission assembly is mounted on the top of the mounting shell. The water spray transmission assembly includes a water pump, and a first branch pipe and a second branch pipe are respectively installed at the outlet of the water pump. Detachable dust suppression components are installed on both the left and right sides of the top of the mounting shell. Each detachable dust suppression component includes a mounting base and a hollow sleeve, and a positioning rod is fixedly connected to one side of the mounting base. This utility model, by setting detachable dust suppression components, has the advantage of flexible dust suppression. It can select a perforated plate with an appropriate aperture according to the range of waste splashing during floor grinding, and move the perforated plate upwards into the transmission frame. The perforated plate is supported and installed by a stop block. In this state, when the water pump is working, water can be sprayed out from the perforated plate.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: common dust removal devices use partial dust suction hoods, which are difficult to cover the entire circumferential dust-generating area of ​​the grinding disc assembly, resulting in dust escaping from uncovered areas, low dust removal efficiency, and the dust suction hood is always at a fixed height, resulting in poor dust removal effect. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a dust removal device for building floor grinding construction, which can improve dust removal efficiency.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a dust removal device for grinding construction floor, including a grinding disc assembly, a motor with a protective cover on the outside, a first annular plate, a second annular plate, a dust suction hood, a lifting assembly, and a dust suction assembly.

[0007] The output end of the motor is fixedly connected to the grinding disc assembly via a rotating shaft;

[0008] The first annular plate is fixedly installed on the upper end of the grinding disc assembly. A first cavity is opened inside the first annular plate. Circular tubes are installed in a circumferential array on the upper end of the first annular plate. One end of the circular tube is connected to the first cavity, and a first dust conveying pipe is inserted inside the circular tube.

[0009] The second annular plate is fixedly installed on the upper end of the first dust conveying pipe. A second cavity is opened inside the second annular plate, and one end of the first dust conveying pipe extends into the second cavity.

[0010] The dust collection hoods are arranged in a circular array and installed on the outside of the first annular plate;

[0011] The lifting assembly includes:

[0012] A square tube is symmetrically installed on the upper end of the first annular plate, and a positioning screw is rotatably installed on one end of the square tube;

[0013] A square rod is inserted into the square tube. One end of the square rod has positioning screw holes arranged in a linear array to match the positioning screw. One end of the positioning screw extends into the positioning screw holes.

[0014] The dust collection assembly includes:

[0015] A small vacuum cleaner is mounted on the upper end of the second annular plate, and a suction pipe is fixedly installed at the output end of the small vacuum cleaner.

[0016] The mounting plate is fixedly installed at one end of the protective cover. A circular hole is opened at one end of the mounting plate. One end of the dust suction pipe is fixedly installed in the circular hole. A second dust conveying pipe is slidably installed inside the circular hole.

[0017] The third annular plate is rotatably installed inside the second annular plate, and one end of the third annular plate is fixedly connected to the second dust conveying pipe. The third annular plate has a third cavity inside, and the third cavity is connected to the second cavity.

[0018] Furthermore, an annular sealing gasket is provided at the upper end of the inside of the circular tube.

[0019] By adopting the above technical solution, the sealing performance between the circular tube and the first dust conveying tube is improved.

[0020] Furthermore, one end of the dust hood is connected to the first cavity and the second cavity.

[0021] By adopting the above technical solution, it is convenient to extract dust.

[0022] Furthermore, one end of the second dust conveying pipe is connected to the third cavity.

[0023] The above-mentioned technical solution is used to transport dust.

[0024] Furthermore, one end of the dust collection hood is provided with a mounting groove, and a filter screen is inserted into the mounting groove.

[0025] By adopting the above technical solution, large particulate impurities in dust can be filtered out.

[0026] Furthermore, the interior of the first cavity, the second cavity, and the third cavity is coated with a polytetrafluoroethylene coating to reduce dust adhesion and airflow friction resistance.

[0027] By adopting the above technical solution, dust adhesion in the first cavity, the second cavity and the third cavity is reduced.

[0028] Furthermore, a silicone sealing gasket is provided on the inner side of the second annular plate.

[0029] By adopting the above technical solution, the sealing performance has been improved.

[0030] Furthermore, both the second annular plate and the third annular plate have annular holes at one end.

[0031] By adopting the above technical solution, the second annular plate and the third annular plate are internally connected.

[0032] In summary, this utility model has the following beneficial effects:

[0033] 1. In this application, the dust collection hood is arranged around the outside of the grinding disc assembly, which can directly capture the circumferentially diffused dust generated by the rotation of the grinding disc assembly. The dust enters the first cavity through the dust collection hood, and then flows into the second cavity through the round pipe and the first dust conveying pipe. Finally, it enters the vacuum cleaner through the third cavity and the second dust conveying pipe, which improves the dust collection coverage and dust removal efficiency, effectively reduces the dust concentration in the construction environment, and avoids dust adhesion affecting the precision of floor grinding.

[0034] 2. In this application, by adjusting the spatial position of the second annular plate through the lifting component, it can flexibly adapt to the dust diffusion area at different heights during the grinding process, thereby achieving efficient capture of suspended dust at different heights and significantly improving the overall dust removal effect. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0036] Figure 2 This is a schematic diagram of the connection structure between the first annular plate and the second annular plate of this utility model;

[0037] Figure 3 This is a schematic diagram of the dust collection component structure according to an embodiment of the present utility model;

[0038] Figure 4 This is a schematic diagram of the first annular plate structure according to an embodiment of the present utility model;

[0039] Figure 5 This is a schematic diagram of the lifting component structure according to an embodiment of the present utility model;

[0040] Figure 6 This is a schematic diagram of the dust cover structure according to an embodiment of the present utility model.

[0041] In the diagram: 1. Grinding disc assembly; 2. Protective cover; 3. First annular plate; 4. Second annular plate; 5. Dust collection hood; 6. Lifting assembly; 601. Square tube; 602. Positioning screw; 603. Square rod; 604. Positioning screw hole; 7. Dust collection assembly; 701. Mini vacuum cleaner; 702. Dust collection pipe; 703. Mounting plate; 704. Round hole; 705. Second dust conveying pipe; 706. Third annular plate; 8. Round tube; 9. First dust conveying pipe; 10. Filter screen; 11. Annular hole. Detailed Implementation

[0042] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] like Figures 1-6 As shown in the embodiment of this application, a dust removal device for building floor grinding is disclosed, including a grinding disc assembly 1, a motor with a protective cover 2 on the outside, a first annular plate 3, a second annular plate 4, a dust suction hood 5, a lifting assembly 6, and a dust suction assembly 7.

[0044] The motor output is fixedly connected to the grinding disc assembly 1 via a rotating shaft;

[0045] The first annular plate 3 is fixedly installed on the upper end of the grinding disc assembly 1. The first annular plate 3 has a first cavity inside. The upper end of the first annular plate 3 is equipped with a circular tube 8 in a circumferential array. One end of the circular tube 8 is connected to the first cavity. The first dust conveying pipe 9 is inserted into the circular tube 8. The upper end of the circular tube 8 is provided with an annular sealing gasket. In use, the annular sealing gasket at the upper end of the circular tube 8 can fill the gap between the circular tube 8 and the first dust conveying pipe 9 to prevent dust from leaking from the joint between the two.

[0046] The second annular plate 4 is fixedly installed on the upper end of the first dust conveying pipe 9. The second annular plate 4 has a second cavity inside. One end of the first dust conveying pipe 9 extends into the second cavity. The first cavity, the second cavity, and the third cavity are coated with a polytetrafluoroethylene coating to reduce dust adhesion and airflow friction resistance. A silicone sealing gasket is provided on the inner side of the second annular plate 4. During use, the polytetrafluoroethylene coating can significantly reduce the amount of dust adhering to the inner wall of the cavity, while reducing the friction resistance between the airflow and the cavity wall, thus preventing dust accumulation and blockage of the dust conveying channel. The silicone sealing gasket on the inner side of the second annular plate 4 can seal the rotational connection gap between the second annular plate 4 and the third annular plate 706 to prevent negative pressure loss at the connection.

[0047] The dust hoods 5 are arranged in a circular array on the outside of the first annular plate 3 and the second annular plate 4. One end of the dust hood 5 is connected to the first cavity and the second cavity. One end of the dust hood 5 has a mounting groove, in which a filter screen 10 is inserted. In use, a damping plate is fixedly installed in the mounting groove. The filter screen 10 is fixed by the friction between itself and the damping plate. The filter screen 10 at one end of the dust hood 5 can intercept large particles of debris generated during grinding in advance, preventing coarse particles from directly entering the small vacuum cleaner 701 and causing damage.

[0048] like Figure 5 As shown, the lifting assembly 6 includes:

[0049] A square tube 601 is symmetrically installed on the upper end of the first annular plate 3, and a positioning screw 602 is rotatably installed on one end of the square tube 601.

[0050] A square rod 603 is inserted into the square tube 601. One end of the square rod 603 has a linear array of positioning screw holes 604 that match the positioning screw 602. One end of the positioning screw 602 extends into the positioning screw hole 604. In use, when the dust diffusion height changes, first loosen the positioning screw 602, push the square rod 603 to slide inside the square tube 601 until the second annular plate 4 and the outer dust collection hood 5 are aligned with the target dust height. Then screw the positioning screw 602 into the corresponding positioning screw hole 604 to fix it, so that the adjustment ensures that the dust collection hood 5 always covers the main dust diffusion area, improving the capture efficiency.

[0051] like Figure 2 and Figure 3 As shown, the vacuuming assembly 7 includes:

[0052] A small vacuum cleaner 701 is installed on the upper end of the second annular plate 4, and a suction pipe 702 is fixedly installed at the output end of the small vacuum cleaner 701.

[0053] Mounting plate 703 is fixedly installed at both ends of protective cover 2. One end of mounting plate 703 has a round hole 704. One end of suction pipe 702 is fixedly installed in the round hole 704. A second dust conveying pipe 705 is slidably installed inside the round hole 704. A first sealing gasket is provided inside the round hole 704 to play a sealing role.

[0054] The third annular plate 706 is rotatably mounted inside the second annular plate 4, and one end of the third annular plate 706 is fixedly connected to the second dust conveying pipe 705. A third cavity is formed inside the third annular plate 706, which is connected to the second cavity. One end of the second dust conveying pipe 705 is connected to the third cavity. Both the second annular plate 4 and the third annular plate 706 have annular holes 11 at one end. During use, low-level dust close to the ground enters the first cavity through the dust collection hood 5 on the outside of the first annular plate 3; high-level dust suspended above enters through the dust collection hood 5 on the outside of the second annular plate 4. The dust hood 5 enters the second cavity; the filter screen 10 inside the dust hood 5 pre-intercepts large particles of debris to prevent coarse particles from clogging the subsequent dust conveying channel. The dust collected in the first cavity enters the first dust conveying pipe 9 through the round pipe 8 and is conveyed upward to the second cavity of the second annular plate 4; after the dust in the second cavity gathers, it enters the third cavity through the annular holes 11 of the second annular plate 4 and the third annular plate 706. Under the action of negative pressure, the dust in the third cavity is sucked into the small vacuum cleaner 701 through the second dust conveying pipe 705, the round hole 704 and the suction pipe 702, thus completing the dust collection.

[0055] The working principle of the dust removal device for building floor grinding in this embodiment is as follows: First, install the motor and other components in the corresponding walking mechanism of the grinding machine. The grinding machine is an existing mechanism, and a conventional planetary grinding machine can be selected. The small vacuum cleaner 701 is electrically connected to its control mechanism. The grinding disc assembly 1 is driven to rotate at high speed through the rotating shaft. The grinding disc assembly 1 generates dust by friction with the floor surface. At this time, under the centrifugal force of the rotating grinding disc assembly 1, the dust diffuses radially outward, forming an annular dust diffusion zone centered on the grinding disc assembly 1. Some dust is suspended directly from the contact point between the grinding disc assembly 1 and the floor, forming dust distribution at different heights. The dust hood 5 and the dust collection component 7 directly capture the circumferentially diffused dust generated by the rotation of the grinding disc assembly 1. The circumferentially distributed dust hood 5 improves the dust collection coverage and dust removal efficiency, while avoiding dust adhesion that affects the floor grinding precision. The spatial position of the second annular plate 4 can be adjusted by the lifting component 6, which can flexibly adapt to the dust diffusion area at different heights during the grinding process, achieving efficient capture of suspended dust at different heights and significantly improving the overall dust removal effect.

[0056] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A dust removal device for a construction floor polishing construction, characterized by: It includes a grinding disc assembly (1), a motor with a protective cover (2) on the outside, a first annular plate (3), a second annular plate (4), a dust collection hood (5), a lifting assembly (6), and a dust collection assembly (7). The output end of the motor is fixedly connected to the grinding disc assembly (1) via a rotating shaft; The first annular plate (3) is fixedly installed on the upper end of the grinding disc assembly (1). The first annular plate (3) has a first cavity inside. The upper end of the first annular plate (3) is equipped with a circular tube (8) in a circular array. One end of the circular tube (8) is connected to the first cavity. A first dust conveying pipe (9) is inserted inside the circular tube (8). The second annular plate (4) is fixedly installed on the upper end of the first dust conveying pipe (9). A second cavity is opened inside the second annular plate (4), and one end of the first dust conveying pipe (9) extends into the second cavity. The dust collection hood (5) is installed in a circumferential array on the outside of the first annular plate (3) and the second annular plate (4); The lifting assembly (6) includes: A square tube (601) is symmetrically installed on the upper end of the first annular plate (3), and a positioning screw (602) is rotatably installed on one end of the square tube (601). A square rod (603) is inserted into the square tube (601). One end of the square rod (603) is provided with positioning screw holes (604) that match the positioning screw (602) in a linear array. One end of the positioning screw (602) extends into the positioning screw hole (604). The vacuuming assembly (7) includes: A small vacuum cleaner (701) is installed on the upper end of the second annular plate (4), and a vacuum tube (702) is fixedly installed at the output end of the small vacuum cleaner (701). Mounting plate (703) is fixedly installed at one end of the protective cover (2). A round hole (704) is opened at one end of the mounting plate (703). One end of the dust suction pipe (702) is fixedly installed in the round hole (704). A second dust conveying pipe (705) is slidably installed inside the round hole (704). The third annular plate (706) is rotatably installed inside the second annular plate (4), and one end of the third annular plate (706) is fixedly connected to the second dust conveying pipe (705). The third annular plate (706) has a third cavity inside, and the third cavity is connected to the second cavity.

2. The dust extraction apparatus for floor grinding operations according to claim 1, characterized in that: An annular sealing gasket is provided at the upper end of the inner side of the circular tube (8).

3. The dust extraction apparatus for floor grinding operations according to claim 1, wherein: One end of the dust hood (5) is connected to the first cavity and the second cavity.

4. The dust extraction apparatus for floor grinding operations according to claim 1, wherein: One end of the second dust conveying pipe (705) is connected to the third cavity.

5. The dust extraction device for floor grinding operations according to claim 1, characterized in that: The dust collection hood (5) has an installation groove at one end, and a filter screen (10) is inserted into the installation groove.

6. The dust extraction device for floor grinding operations according to claim 1, characterized in that: The interior of the first cavity, the second cavity, and the third cavity is coated with a polytetrafluoroethylene coating to reduce dust adhesion and airflow friction resistance.

7. The dust extraction device for floor grinding operations according to claim 1, characterized in that: A silicone sealing gasket is provided on the inner side of the second annular plate (4).

8. The dust extraction device for floor grinding operations according to claim 1, characterized in that: Both the second annular plate (4) and the third annular plate (706) have annular holes (11) at one end.

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