A floor brush for floor washing machine and floor washing machine

Abstract

The present invention discloses a floor brush for a floor scrubber, the floor brush having a front end and a rear end, a scraper bar being provided at the front end of the floor brush; the scraper bar having at least the following two working positions: (1) a water scraping working position: when the floor brush moves backward, the scraper bar becomes a basically downward state, and the bottom end of the scraper bar abuts against the surface to be cleaned to scrape off water stains on the surface to be cleaned; (2) a suspended working position: when the floor brush moves forward, the scraper bar becomes a suspended state, and the bottom end of the scraper bar is away from the surface to be cleaned. The floor brush is particularly suitable for household floor scrubbers. By providing a scraper bar at the front end of the floor brush, water on the surface to be cleaned can be scraped off when the floor brush moves backward, thereby avoiding residual water stains.

Description

Technical Field

[0001] The present invention relates to the technical field of smart homes, and in particular to a household floor scrubber. Background Art

[0002] In the prior art, floor washers are generally divided into commercial floor washers and household floor washers. Commercial floor washers are generally used in factories, garages, shopping malls, supermarkets and other places with relatively large areas, while household floor washers are generally suitable for families with relatively small areas (generally less than 200 square meters).

[0003] For household floor scrubbers, the structure mainly includes a floor scrubber body and a floor brush. The floor scrubber body is provided with a water tank (to supply water to the drum) and a sewage tank (to collect sewage); it is also provided with a controller, a liquid spraying device, a drum motor for controlling the drum, a suction device and a main motor for controlling the suction device; and the floor brush is mainly provided with a drum and a diversion channel for cleaning the floor. When working, the liquid spraying device is in an open state to spray liquid to the drum; the drum motor is in an open state to rotate the drum; the main motor is in an open state to suck the liquid (sewage) flowing through the drum from the diversion channel to the liquid suction pipe, and finally flows into the sewage tank. This small household floor scrubber has been widely favored by the public because of its convenience and practicality.

[0004] Currently, according to user feedback, during the use of the floor scrubber, water stains will remain on the cleaned surface (such as the ground, wooden floor, etc.).

[0005] In response to the above problems, the existing floor brushes of floor scrubbers are provided with rubber scrapers at the bottom to scrape the sewage (and particulate impurities, etc.) into the diversion channel. However, in actual applications, it is found that there are two practical problems: (1) It is not possible to completely scrape off the water stains by relying solely on the rubber scrapers at the bottom of the floor brush, and there are still residues; first, because the existing rubber scrapers are relatively soft, a gap is formed between the scrapers and the cleaned surface, which makes it impossible to scrape off the sewage well, resulting in sewage residue; second, when the floor brush is dragged backwards, the rubber scrapers at the bottom cannot scrape; (2) Because the rubber scrapers are often turned over and then restored, their service life is short. After a period of use, the rubber scrapers often break or crack, leaving users with a bad user experience.

[0006] Therefore, developing a new floor brush to achieve better cleaning and avoid sewage residue to improve user experience obviously has positive practical significance. Summary of the invention

[0007] The object of the present invention is to provide a household floor scrubber.

[0008] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted is: a floor brush for a floor scrubber, the floor brush having a front end and a rear end, the front end of the floor brush is provided with a scraper bar; the scraper bar has at least the following two working positions:

[0009] (1) Scraping working position: when the floor brush moves backward, the scraping strip becomes basically downward, and the bottom end of the scraping strip abuts against the surface to be cleaned to scrape off water stains on the surface to be cleaned;

[0010] (2) Suspended working position: When the floor brush moves forward, the scraper bar becomes suspended, and the bottom end of the scraper bar is away from the surface to be cleaned.

[0011] In the above, the wiping working position refers to the state where the scraper strip is scraping water stains; the suspended working position refers to the state where the scraper strip is not wiping water. Preferably, in the suspended working position, the bottom end of the scraper strip does not contact the cleaned surface. Preferably, the distance between the bottom end of the scraper strip and the cleaned surface is 1 to 15 mm; more preferably 3 to 10 mm; more preferably 4 to 8 mm.

[0012] In this article, all references to the floor brush "forward" and "backward" refer to the movement of the floor brush on a surface (such as the surface being cleaned). The "front end" of the floor brush is the frontmost part in the forward direction, and the "rear end" of the floor brush is the frontmost part in the backward direction; because, in actual use, the floor brush needs to move forward and backward alternately for cleaning.

[0013] Preferably, it further comprises a driving mechanism, and the scraper strip is driven and connected by the driving mechanism to form the above-mentioned two working positions.

[0014] Preferably, the driving mechanism comprises at least one balance wheel, and the balance wheel is arranged on at least one side of the scraper strip;

[0015] The upper end of the balance wheel is coaxially arranged with the rotating shaft of the scraper strip, and the lower end surface of the balance wheel is arc-shaped.

[0016] When the floor brush moves backward, the lower end surface of the balance wheel contacts the cleaned surface and rotates forward driven by friction, driving the scraper to the scraping working position; when the floor brush moves forward, the lower end surface of the balance wheel rotates backward driven by friction, driving the scraper to the suspended working position. The above scheme is a more preferred structure, and the scraper is in the suspended working position when it moves backward; of course, the scraper can also be set to the suspended working position when it moves forward.

[0017] According to another corresponding technical solution, the driving mechanism includes an electromagnetic driving component and at least one swinging member, and the swinging member is arranged on at least one side of the scraper strip;

[0018] The upper end of the swing member is coaxially arranged with the rotating shaft of the scraper strip, and the lower end of the swing member is provided with a magnetic component;

[0019] When the floor brush moves backward, the lower end of the swing member is pushed by the electromagnetic drive component, driving the scraper bar to the wiping working position; when the floor brush moves forward, the lower end of the swing member is pulled by the electromagnetic drive component, driving the scraper bar to the suspended working position. Similarly, this scheme is a more preferred structure, and the scraper bar is in the suspended working position when it moves backward; of course, the scraper bar can also be set to the suspended working position when it moves forward.

[0020] Preferably, the driving mechanism further comprises a fixing structure, and when the floor brush moves backwards and the balance wheel drives the scraper strip to reach the wiping working position, the fixing structure fixes the balance wheel and / or the scraper strip in place.

[0021] Preferably, the driving mechanism further comprises a position sensor and a controller, and the controller controls and changes the magnetic field direction of the electromagnetic driving component according to a signal from the position sensor.

[0022] Preferably, at least one of the electromagnetic driving component and the magnetic component provided at the lower end of the swinging member is an electromagnetic field device. That is to say, there are multiple schemes. For example, a preferred scheme is that the electromagnetic driving component adopts an electromagnetic field device, and the magnetic component at the lower end of the balance wheel is a permanent magnet; another scheme is that the electromagnetic driving component and the magnetic component at the lower end of the balance wheel both adopt electromagnetic field devices. The electromagnetic field device here is a prior art, that is, a device that generates a magnetic field by applying electricity, such as a conductive coil.

[0023] Preferably, the magnetic component at the lower end of the balance wheel is a permanent magnet.

[0024] Preferably, a rear scraping strip is further provided at the rear end of the floor brush.

[0025] Preferably, a roller and a guide channel are provided in the floor brush, the rear scraping strip is provided behind the roller, and an entrance of the guide channel is formed between the roller and the rear scraping strip; the lower end of the rear scraping strip is a flexible member.

[0026] In the above, there is only one drum in the shell, and the drum is located in the front of the shell.

[0027] The structure of the above-mentioned rear scraper strip (including but not limited to setting the scraper strip angle and the extension section width, etc.) can also be used for the scraper strip at the front end of the floor brush.

[0028] The present invention also claims protection for a floor scrubber, comprising a floor brush, wherein the floor brush is the above-mentioned floor brush. The structure of the floor brush is the same as that described above, and will not be repeated here.

[0029] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0030] 1. The present invention has developed a floor brush with a new structure, which is particularly suitable for household floor scrubbers. By providing a scraper bar at the front end of the floor brush, water on the cleaned surface can be scraped off when the floor brush moves backward, thereby avoiding water stains.

[0031] 2. The present invention has developed a floor brush with a new structure, which is particularly suitable for household floor scrubbers. A scraping bar is provided at the front end of the floor brush, and a rear scraping bar is provided at the rear end of the floor brush, thereby forming a front and rear scraping bar structure. When the floor brush moves forward, the rear scraping bar scrapes away moisture; when the floor brush moves backward, the scraping bar scrapes away moisture. This completely solves the problem of residual sewage on the ground, brings a better user experience, and is easier to achieve commercial success, which obviously has positive practical significance.

[0032] 3. The present invention aims at the rear scraper bar, which maintains the working state of obliquely shoveling forward when moving forward, and does not flip over, thereby solving the problem of rubber strip flipping in the prior art. At the same time, by setting the lower end of the scraper bar to extend downward, an interference fit structure is formed between the scraper bar and the ground, thereby preventing a gap from forming between the two, and solving the problem of sewage residue; and greatly improving the service life of the scraper bar;

[0033] 4. The product of the present invention has a simple structure, low cost, good commercial significance, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the wiper working position in the first embodiment of the present invention.

[0035] Figure 2 yes Figure 1 sectional view of .

[0036] Figure 3 It is a schematic diagram of the suspended working position in the first embodiment of the present invention.

[0037] Figure 4 yes Figure 3 sectional view of .

[0038] Figure 5 It is a schematic diagram of the second embodiment of the present invention in the wiper working position.

[0039] Figure 6 yes Figure 5 sectional view of .

[0040] Figure 7 It is a schematic diagram of the suspended working position in the second embodiment of the present invention.

[0041] Figure 8 yes Figure 7 sectional view of .

[0042] Among them: 1. front end; 2. rear end; 3. scraper; 4. cleaned surface; 5. balance wheel; 6. rear scraper; 7. roller; 8. swing part. DETAILED DESCRIPTION

[0043] The present invention will be further described with reference to the following embodiments:

[0044] Embodiment 1

[0045] See also Figures 1 to 4 As shown, a floor brush for a floor scrubber has a front end 1 and a rear end 2, and a scraper bar 3 is provided at the front end of the floor brush; the scraper bar has at least the following two working positions:

[0046] (1) Scraping working position: when the floor brush moves backward, the scraping strip becomes basically downward, and the bottom end of the scraping strip abuts against the cleaned surface 4 to scrape off water stains on the cleaned surface;

[0047] (2) Suspended working position: When the floor brush moves forward, the scraper bar becomes suspended, and the bottom end of the scraper bar is away from the surface to be cleaned.

[0048] It also includes a driving mechanism, which includes two balance wheels 5, which are arranged on both sides of the scraper strip; the upper end of the balance wheel is coaxially arranged with the rotating shaft of the scraper strip, and the lower end surface of the balance wheel is arc-shaped.

[0049] When the floor brush moves backward, the lower end surface of the balance wheel contacts the cleaned surface and rotates forward driven by friction, driving the scraper strip to the wiper working position, see Figure 2 When the brush moves forward, the lower end surface of the balance wheel rotates backward under the friction force, driving the scraper to reach the suspended working position, see Figure 4 .

[0050] The driving mechanism also includes a fixing structure. When the brush moves backward and the balance wheel drives the scraper to reach the wiping working position, the fixing structure fixes the balance wheel and the scraper in place. (The fixing structure is not shown in the figure)

[0051] In the above, the wiping working position refers to the state where the scraper strip is scraping water stains; the suspended working position refers to the state where the scraper strip is not wiping water. In this embodiment, in the suspended working position, the bottom end of the scraper strip does not contact the cleaned surface, and the distance between the bottom end of the scraper strip and the cleaned surface is 5 mm.

[0052] Preferably, a rear scraping strip 6 is further provided at the rear end of the floor brush.

[0053] Preferably, a roller 7 and a guide channel are provided in the floor brush, the rear scraping strip is provided behind the roller, and an entrance of the guide channel is formed between the roller and the rear scraping strip; the lower end of the rear scraping strip is a flexible member.

[0054] In the above, there is only one roller 7 in the housing, and the roller is located in front of the housing. In the figure, the roller of the floor brush exceeds the cleaned surface, which means that the bristles on the roller have a certain fluffiness, so the bristles will be compressed in actual use.

[0055] In actual use, the floor brush needs to move forward and backward alternately for comprehensive cleaning. When the floor brush moves forward, the rear scraper bar scrapes off water stains, and the front scraper bar is in a suspended working position; when the floor brush moves backward, the front scraper bar scrapes off water stains. This completely solves the problem of residual sewage on the ground.

[0056] Embodiment 2

[0057] See also Figures 5 to 8 As shown, a floor brush for a floor scrubber has a front end 1 and a rear end 2, and a scraper bar 3 is provided at the front end of the floor brush; the scraper bar has the following two working positions:

[0058] (1) Scraping working position: when the floor brush moves backward, the scraping strip becomes basically downward, and the bottom end of the scraping strip abuts against the cleaned surface 4 to scrape off water stains on the cleaned surface;

[0059] (2) Suspended working position: When the floor brush moves forward, the scraper bar becomes suspended, and the bottom end of the scraper bar is away from the surface to be cleaned.

[0060] It also includes a driving mechanism, and the scraper strip is connected by the driving mechanism to form the above two working positions. The driving mechanism includes an electromagnetic driving component and two swinging members 8, and the swinging members are arranged on both sides of the scraper strip; the upper end of the swinging member is coaxially arranged with the rotating shaft of the scraper strip, and the lower end of the swinging member is provided with a magnetic component (permanent magnet is used in this embodiment);

[0061] When the floor brush moves backward, the lower end of the swing member is pushed by the electromagnetic driving component, driving the scraper bar to the wiping working position; when the floor brush moves forward, the lower end of the swing member is pulled by the electromagnetic driving component, driving the scraper bar to the suspended working position.

[0062] The driving mechanism also includes a fixing structure. When the brush moves backward and the balance wheel drives the scraper to reach the wiping working position, the fixing structure fixes the balance wheel and the scraper in place. (The fixing structure is not shown in the figure)

[0063] The driving mechanism further includes a position sensor and a controller, and the controller controls and changes the magnetic field direction of the electromagnetic driving component according to the signal of the position sensor. The electromagnetic driving component and the lower end of the swinging member are provided with a magnetic component, the former is an electromagnetic field device, and the latter is a permanent magnet. The electromagnetic field device here is a prior art, that is, a device that generates a magnetic field by applying electricity, such as a conductive coil.

[0064] In this embodiment, see Figure 5 As shown, the magnetic field direction of the electromagnetic drive component repels the swing member 8, thereby pushing the swing member and the wiper strip to the wiper working position; see Figure 7 As shown, the magnetic field direction of the electromagnetic drive component attracts the swing member 8, thereby pulling the swing member and the scraper strip to a suspended working position. The magnetic field direction of the electromagnetic drive component is adjusted by the current direction (this is the prior art).

[0065] In the above, the wiping working position refers to the state where the scraper strip is scraping water stains; the suspended working position refers to the state where the scraper strip is not wiping water. In this embodiment, in the suspended working position, the bottom end of the scraper strip does not contact the cleaned surface, and the distance between the bottom end of the scraper strip and the cleaned surface is 4 mm.

[0066] Preferably, a rear scraping strip 6 is further provided at the rear end of the floor brush.

[0067] Preferably, a roller 7 and a guide channel are provided in the floor brush, the rear scraping strip is provided behind the roller, and an entrance of the guide channel is formed between the roller and the rear scraping strip; the lower end of the rear scraping strip is a flexible member.

[0068] In the above, there is only one roller 7 in the housing, and the roller is located in front of the housing. In the figure, the roller of the floor brush exceeds the cleaned surface, which means that the bristles on the roller have a certain fluffiness, so the bristles will be compressed in actual use.

[0069] In actual use, the floor brush needs to move forward and backward alternately for comprehensive cleaning. When the floor brush moves forward, the rear scraper bar scrapes off water stains, and the front scraper bar is in a suspended working position; when the floor brush moves backward, the front scraper bar scrapes off water stains. This completely solves the problem of residual sewage on the ground.

[0070] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A floor brush for a floor scrubber, the floor brush having a front end and a rear end, characterized in that: The front end of the floor brush is provided with a scraper strip; the scraper strip has at least the following two working positions: (1) Scraping working position: When the floor brush moves backward, the scraper bar becomes basically downward, and the bottom end of the scraper bar abuts against the surface to be cleaned to scrape off water stains on the surface to be cleaned; (2) Suspended working position: When the floor brush moves forward, the scraper bar becomes suspended, and the bottom end of the scraper bar is away from the surface to be cleaned; It also includes a driving mechanism, and the scraper strip is driven and connected by the driving mechanism to form the above two working positions; The driving mechanism comprises at least one balance wheel, and the balance wheel is arranged on at least one side of the scraper strip; The upper end of the balance wheel is coaxially arranged with the rotating shaft of the scraper strip, and the lower end surface of the balance wheel is arc-shaped.

2. The floor brush for a floor scrubber according to claim 1, characterized in that: When the local brush moves backward, the lower end surface of the balance wheel contacts the cleaned surface and rotates forward driven by friction, driving the scraper to the wiper working position; when the local brush moves forward, the lower end surface of the balance wheel rotates backward driven by friction, driving the scraper to the suspended working position.

3. The floor brush for a floor scrubber according to claim 1, characterized in that: The driving mechanism further comprises a fixing structure. When the floor brush moves backwards and the balance wheel drives the scraper strip to reach the wiping working position, the fixing structure fixes the balance wheel and / or the scraper strip in place.

4. A floor brush for a floor scrubber, the floor brush having a front end and a rear end, characterized in that: The front end of the floor brush is provided with a scraper strip; the scraper strip has at least the following two working positions: (1) Scraping working position: When the floor brush moves backward, the scraper bar becomes basically downward, and the bottom end of the scraper bar abuts against the surface to be cleaned to scrape off water stains on the surface to be cleaned; (2) Suspended working position: When the floor brush moves forward, the scraper bar becomes suspended, and the bottom end of the scraper bar is away from the surface to be cleaned; It also includes a driving mechanism, and the scraper strip is driven and connected by the driving mechanism to form the above two working positions; The driving mechanism comprises an electromagnetic driving component and at least one swinging member, and the swinging member is arranged on at least one side of the scraper strip; The upper end of the swinging member is coaxially arranged with the rotating shaft of the scraper strip, and the lower end of the swinging member is provided with a magnetic component.

5. The floor brush for a floor scrubber according to claim 4, characterized in that: When the floor brush moves backward, the lower end of the swing member is pushed by the electromagnetic driving component, driving the scraper bar to the wiping working position; when the floor brush moves forward, the lower end of the swing member is pulled by the electromagnetic driving component, driving the scraper bar to the suspended working position.

6. The floor brush for a floor scrubber according to claim 4, characterized in that: The driving mechanism further comprises a position sensor and a controller, wherein the controller controls and changes the magnetic field direction of the electromagnetic driving component according to a signal of the position sensor.

7. The floor brush for a floor scrubber according to claim 4, characterized in that: At least one of the electromagnetic driving component and the magnetic component provided at the lower end of the swinging member is an electromagnetic field device.

8. The floor brush for a floor scrubber according to claim 1 or 4, characterized in that: A rear scraping strip is also provided at the rear end of the floor brush.

9. The floor brush for a floor scrubber according to claim 8, characterized in that: A roller and a guide channel are arranged in the floor brush, the rear scraping strip is arranged behind the roller, and an entrance of the guide channel is formed between the roller and the rear scraping strip; the lower end of the rear scraping strip is a flexible member.

10. A floor scrubber, comprising a floor brush, characterized in that: The floor brush is the floor brush according to any one of claims 1 to 9.

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