A self-adjusting device for a hard surface cleaning apparatus

Abstract

The utility model relates to the technical field of hard surface cleaning machine, concretely relates to a hard surface cleaning equipment self -adjusting device, including the movable baffle that surrounds the arrangement of cleaning disc, the movable baffle is covered and is connected with the movable baffle on the shell up and down, and the movable baffle shields the interval space between the cleaning disc and the shell, the cleaning disc middle part hole and with the shell between being equipped with adjusting mechanism, the adjusting mechanism is used for adjusting the cleaning depth of cleaning disc. The utility model is convenient for making installation, and can improve on the original floor brush, and the debris and dust produced by the grinding of cleaning disc can not splash by the shielding of movable baffle, provide better dustless construction environment, still can realize the height adjustment of cleaning disc through adjusting mechanism, thereby adapt to uneven ground, and all can let movable baffle close to ground and prevent dust from flying up.

Description

Technical Field

[0001] This utility model relates to the technical field of hard surface cleaning machines, and specifically to a self-adjusting device for hard surface cleaning equipment. Background Technology

[0002] On construction sites, floor scrubbers are commonly used to polish cement floors and walls smooth. Existing floor scrubbers range from small power tools to large machines suitable for grinding large surfaces. However, most devices are simply motor-controlled rotating cleaning discs. The key to floor scrubbers is achieving the maximum polishing rate to quickly remove the damaged layer generated during grinding. This requires the use of coarser abrasives and a high rotation speed, which makes it easier to generate flying debris and dust during operation. While flexible baffles can typically block most of the dust, they are insufficient to prevent dust leakage through gaps on uneven surfaces, as the primary polishing area is the surface where the cleaning disc contacts the ground. This can negatively impact the working environment. Utility Model Content

[0003] To address the problems existing in the prior art, the present invention aims to provide a self-adjusting device for hard surface cleaning equipment. This invention is easy to manufacture and install, and can be improved upon existing floor scrubbers. The movable baffle prevents dust generated during floor grinding or wastewater from splashing during cleaning, and the adjustment mechanism can adapt to uneven surfaces.

[0004] The present invention discloses a self-adjusting device for a hard surface cleaning equipment, comprising a movable baffle arranged around a cleaning disc, the movable baffle being sleeved on the outer shell of the floor scrubber and vertically connected to the outer shell, and the movable baffle covering the gap between the cleaning disc and the outer shell; an adjustment mechanism is provided between the cleaning disc and the outer shell through an opening in the middle, the adjustment mechanism being used to adjust the cleaning depth of the cleaning disc.

[0005] In one embodiment, the outer side of the housing is provided with a first protruding edge in the radial direction, and the inner side of the movable baffle is provided with two second protruding edges in the radial direction. A groove is formed between the two second protruding edges that is adapted to the first protruding edge, and the first protruding edge can move up and down relative to each other within the range of the groove.

[0006] In one embodiment, the adjustment mechanism includes a knob rotatably connected to the housing, a screw threadedly connected below the knob, a roller at the bottom end of the screw, and an elastic element between the roller and the central axis of the cleaning disc rotating wheel.

[0007] In one embodiment, the movable baffle has a notch on the rear side relative to the cleaning tray, and the notch is adapted to the shape of the housing.

[0008] In one embodiment, a fixed baffle is also fixed to the bottom of the outer casing relative to the rear side of the cleaning tray. The fixed baffle is located inside the movable baffle and is used to cover the gap between the notch of the movable baffle and the outer casing.

[0009] In one embodiment, the bottom of the movable baffle is provided with a soft brush, the length of which is consistent with the vertical movement distance of the movable baffle relative to the outer shell.

[0010] In one embodiment, a space is left between the outer edge of the cleaning tray and the movable baffle.

[0011] In one embodiment, the bottom rear side of the movable baffle is provided with a plurality of through holes, which are used to connect the inner and outer sides of the movable baffle.

[0012] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0013] This utility model is easy to manufacture and install, and can be improved on the original floor scrubber. The movable baffle can prevent the debris and dust generated by the cleaning disc from flying around when it is grinding the floor, providing a better dust-free construction environment. The height of the cleaning disc can also be adjusted by the adjustment mechanism to adapt to uneven floors, and the movable baffle can be kept close to the ground to prevent dust from being stirred up. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a self-adjusting device for a hard surface cleaning equipment according to this utility model;

[0015] Figure 2 This is a front sectional view of the self-adjusting device of a hard surface cleaning equipment according to this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1-cleaning tray, 2-outer shell, 21-first protruding edge, 3-movable baffle, 31-groove, 4-fixed baffle, 5-brush, 6-through hole, 7-knob, 8-screw, 9-elastic element, 10-roller. Detailed Implementation

[0017] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can be described as the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 and Figure 2 As shown, this utility model discloses a self-adjusting device for a hard surface cleaning equipment, including a movable baffle 3 arranged around a cleaning disc 1. The movable baffle 3 is fitted onto the outer shell 2 of the floor scrubber and is vertically connected to the outer shell 2, and the movable baffle 3 covers the space between the cleaning disc 1 and the outer shell 2. An adjustment mechanism is provided between the cleaning disc 1 (with an opening in the middle) and the outer shell 2 to adjust the cleaning depth of the cleaning disc 1. This utility model is easy to manufacture and install, and can be improved on the existing floor scrubber outer shell 2. The movable baffle 3 prevents debris and dust generated by the cleaning disc 1 during floor scrubbing from splashing, as it is completely blocked by the movable baffle 3. A vacuum cleaner can be added inside the floor scrubber to directly collect the dust generated during scrubbing, providing a better dust-free working environment. In addition, polishing can be performed by replacing the cleaning disc 1. Figure 1 As shown, a brush layer is installed at the bottom, which can also be used for washing carpets. The movable baffle 3 can also block the splashing of wastewater, which is then absorbed by the vacuuming equipment inside the floor scrubber. Furthermore, the vertical connection of the movable baffle 3 allows for self-adjustment due to gravity. Combined with the adjustment mechanism, the height of the cleaning disc 1 can be adjusted to adapt to uneven surfaces, thereby adjusting the cleaning depth on hard surfaces. When the floor scrubber passes over these uneven surfaces, the movable baffle 3 has a certain vertical range of movement, which basically keeps its bottom close to the ground, thus preventing dust or wastewater from leaking out of the gaps and being stirred up.

[0020] Specifically, the outer side of the outer shell 2 has a first protruding edge 21 protruding radially, and the inner side of the movable baffle 3 has two second protruding edges protruding vertically radially. A groove 31 that matches the first protruding edge 21 is formed between the two second protruding edges, and the first protruding edge 21 can move vertically relative to each other within the groove 31. The movable baffle 3 and the outer shell 2 are connected by a sleeve. The first protruding edge 21 is provided on the outer shell 2 for limiting, and the two second protruding edges on the inner side of the movable baffle 3 form a wider groove 31. Therefore, the vertical movement of the movable baffle 3 due to uneven ground will keep the first protruding edge 21 within the groove 31. The movable baffle 3 will not detach from the outer shell 2 and can always keep blocking the gap between the outer shell 2 and the ground. The dust generated by the cleaning disc 1 inside will not splash outside the movable baffle 3.

[0021] The adjustment mechanism includes a knob 7 rotatably connected to the outer casing 2, a screw 8 threadedly connected below the knob 7, a roller 10 at the bottom of the screw 8, and an elastic element 9 between the roller 10 and the central axis of the rotating wheel of the cleaning disc 1. The cleaning disc 1 is driven by the rotating wheel, and the rotating wheel has a relatively fixed central axis in the middle. When in use, the screw 8 can be adjusted up and down by rotating the knob 7, thereby adjusting the height of the roller 10 so that it protrudes from the opening in the middle of the cleaning disc 1 and contacts the ground. At the same time, due to the action of the elastic element 9, a spring or similar device can be used so that the overall gravity of the cleaning disc 1 will finely adjust its cleaning depth according to the degree of protrusion of the roller 10 and the elastic potential energy of the elastic element 9, to adapt to different hard surfaces, especially the ground that requires repeated grinding and polishing. The up and down range of the cleaning disc 1 can be included by the up and down range of the movable baffle 3, which can ensure that dust splashes are blocked.

[0022] Furthermore, the movable baffle 3 has a notch on its rear side relative to the cleaning disc 1. This notch matches the shape of the outer casing 2, allowing the outer casing 2 of the floor scrubber to be directly connected to a vacuum cleaner or similar device, guiding dust and other contaminants from inside the casing 2 into the vacuum cleaner. A fixed baffle 4 is also fixed to the bottom of the outer casing 2 relative to the rear side of the cleaning disc 1. The fixed baffle 4 is located inside the movable baffle 3 and covers the gap between the notch of the movable baffle 3 and the outer casing 2. The function of the fixed baffle 4 is to fill the gap created between the movable baffle 3 and the outer casing 2 due to its vertical movement, preventing dust from splashing out. Therefore, both the movable baffle 3 and the fixed baffle 4 must be made of wear-resistant materials to prevent excessive wear from flying abrasive particles, thus avoiding frequent replacement.

[0023] In addition, the bottom of the movable baffle 3 is equipped with a soft brush 5, the length of which is consistent with the vertical movement distance of the movable baffle 3 relative to the outer shell 2. The brush 5 has a certain degree of elasticity, which can better compensate for any gaps that may arise between the movable baffle 3 and the ground. Furthermore, the brush 5 should not be too long to avoid bending and creating large gaps. Also, there is space between the outer edge of the cleaning disc 1 and the movable baffle 3 to prevent the cleaning disc 1 from impacting the movable baffle 3 during high-speed rotation, and the polishing position can connect to the top of the cleaning disc 1, facilitating the placement of a vacuum cleaner or other equipment to collect dust. Additionally, several through holes 6 are provided on the rear bottom of the movable baffle 3. These through holes 6 connect the inner and outer sides of the movable baffle 3, allowing the negative pressure exerted on the cleaning disc 1 by the vacuum cleaner or other equipment to be released, preventing the movable baffle 3 from being too sealed and causing air pressure changes, thus avoiding other negative impacts on the floor scrubber.

[0024] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application.

[0025] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A self-adjusting device for a hard surface cleaning apparatus, characterized by, Includes a movable baffle (3) arranged around the cleaning disc (1), the movable baffle (3) is fitted on the outer shell (2) of the floor scrubber and is movably connected to the outer shell (2) vertically, and the movable baffle (3) covers the space between the cleaning disc (1) and the outer shell (2); The cleaning disc (1) has an opening in the middle and an adjustment mechanism is provided between it and the outer shell (2). The adjustment mechanism is used to adjust the cleaning depth of the cleaning disc (1).

2. The self-adjusting device for a hard surface cleaning equipment according to claim 1, characterized in that, The outer side of the outer shell (2) is provided with a first protruding edge (21) in the radial direction, and the inner side of the movable baffle (3) has two second protruding edges protruding up and down in the radial direction. A groove (31) is formed between the two second protruding edges to match the first protruding edge (21). The first protruding edge (21) can move up and down relative to each other within the range of the groove (31).

3. A self-adjusting device for a hard surface cleaning apparatus according to claim 1 or 2, wherein, The adjustment mechanism includes a knob (7) rotatably connected to the outer casing (2), a screw (8) threadedly connected below the knob (7), a roller (10) at the bottom end of the screw (8), and an elastic element (9) between the roller (10) and the central axis of the rotating wheel of the cleaning disc (1).

4. A self-adjusting device for a hard surface cleaning apparatus as defined in claim 2, wherein, The movable baffle (3) has a notch on the rear side of the cleaning tray (1), and the notch is adapted to the shape of the outer shell (2).

5. A self-adjusting device for a hard surface cleaning apparatus as defined in claim 4, wherein, The outer casing (2) is further fixed with a fixed baffle (4) at the bottom of the rear side of the cleaning tray (1). The fixed baffle (4) is located inside the movable baffle (3) and is used to cover the gap between the notch of the movable baffle (3) and the outer casing (2).

6. The self-adjusting device for a hard surface cleaning equipment according to claim 5, characterized in that, The bottom of the movable baffle (3) is provided with a soft brush (5), the length of which is consistent with the vertical movement distance of the movable baffle (3) relative to the outer shell (2).

7. A self-adjusting device for a hard surface cleaning apparatus as defined in claim 6, wherein, There is a space between the outer edge of the cleaning tray (1) and the movable baffle (3).

8. The self-adjusting device for a hard surface cleaning equipment according to any one of claims 4-7, characterized in that, The movable baffle (3) has several through holes (6) at its rear bottom, which are used to connect the inner and outer sides of the movable baffle (3).

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