Floor brush module for cleaning machine and cleaning machine

Abstract

The utility model relates to a floor brush module for a cleaning machine and the cleaning machine. The floor brush module comprises a shell. The water scraping piece is in a strip shape and can be arranged on the front side of the shell in an up-down overturning mode, and the water scraping piece can open the air inlet in the upward overturning state and close the air inlet in the downward overturning state; the driving assembly comprises a driving part which is arranged on the water scraping piece; the elastic piece acts on the water scraping piece, so that the water scraping piece always keeps an upward overturning trend; the driving piece is arranged on the shell; the upper end of the swing arm is in driving connection with the driving part, the lower end of the swing arm can swing up and down, and the lower end of the swing arm can swing downwards to abut against the driving part, so that the water scraping part is overturned downwards; and the lower end of the swing arm can swing upwards to a state of being separated from the driving part, and the water scraping piece is overturned upwards under the action of the elastic piece. The driving assembly can drive the water scraping piece to turn over, the reliability of opening or closing the air inlet by the water scraping piece is guaranteed, and the cleaning effect of the cleaning machine is improved.

Description

Technical Field

[0001] The utility model relates to the field of household cleaning tools, in particular to a floor brush module for a cleaning machine and a cleaning machine. Background Art

[0002] A cleaning machine is a relatively common portable cleaning device for household use. It first appeared in the form of a vacuum cleaner and can only be used in dry environments. In order to meet the use needs in more environments, especially in wet environments, products such as floor scrubbers have been developed. Most existing floor scrubbers use a front roller brush structure. By setting a roller brush that can rotate relative to the casing on the front side of the casing, the area covered by the roller brush can be swept and cleaned, which is very convenient. When operating in a wet environment, the wiper strips set in front and behind the roller brush can play a good role in wiping water and avoid residual water stains.

[0003] Most of the existing wiper strips adopt a fixed connection form, and their setting angle cannot be changed. Although this can achieve wiper effect, when the floor brush module moves forward, the presence of the wiper strip will hinder the collection of larger particles or hair, so that some debris and dust are always free outside the shell of the floor brush module, which needs to be cleaned manually, which is very inconvenient.

[0004] To this end, the Chinese utility model patent with patent number CN201520816165.6 discloses a "floor brush and vacuum cleaner thereof", in which a rotatable floor scraper bar is provided on the front side. However, since the scraper bar has no external drive, it can only be flipped with the friction generated by the floor brush module with the ground when it moves forward or backward. This makes such flipping form very dependent on the flatness of the ground. After long-term use, the scraper bar will partially harden, resulting in insufficient friction with the surface to be cleaned, causing the scraper bar to fail to open, and water stains will be left after cleaning, resulting in a poor user experience. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a floor brush module for a cleaning machine with high turnover reliability of a wiper member in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned floor brush module in view of the current status of the prior art.

[0007] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a floor brush module for a cleaning machine, comprising:

[0008] A housing having a dust suction chamber therein, the housing also having an air inlet on the front side of the floor brush module in the direction of travel, the housing also having an air outlet for communicating with a downstream fan module of the cleaning machine, along the air flow path, the air outlet is located downstream of the air inlet, and both are fluidly connected to the dust suction chamber;

[0009] A wiper, in a strip shape, is disposed on the front side of the housing in a manner that it can be turned upside down, and the wiper can open the air inlet when it is turned upside down, and close the air inlet when it is turned downside down;

[0010] It is characterized in that it also includes a driving assembly for driving the wiper element to flip, the driving assembly includes

[0011] A driving part, arranged on the wiper element;

[0012] The elastic member acts on the wiper member to keep the wiper member in a tendency to flip upwards;

[0013] A driving member, disposed on the housing;

[0014] The upper end of the swing arm is connected to the driving member, and the lower end can swing up and down. The lower end of the swing arm can swing downward until it presses against the driving part, thereby causing the wiper element to flip downward; and the lower end of the swing arm can swing upward until it is disengaged from the driving part, and the wiper element flips upward under the action of the elastic member.

[0015] The wiper member can have a variety of structural forms. Preferably, the wiper member includes a connecting part and a scraper. Both ends of the connecting part are provided with slots. The housing is provided with a pin extending along the length direction of the wiper member. The pin is inserted in the slot, and the connecting part can rotate relative to the pin. The scraper is installed on the connecting part. The elastic member acts on the connecting part, and the driving part is provided on the connecting part. This structural form of the wiper member is convenient for installing the wiper member on the housing.

[0016] Preferably, the scraper is a flexible member, and when the wiper element closes the air inlet, the lower part of the scraper can be in interference fit with the surface of the object to be cleaned; when the wiper element opens the air inlet, the lower part of the scraper is out of contact with the surface of the object to be cleaned. The scraper and the surface of the object to be cleaned have an interference fit, which can ensure the reliability of the wiper element closing the air inlet; the scraper is a flexible member to prevent the scraper from damaging the surface of the object to be cleaned.

[0017] In order to facilitate the arrangement of the elastic member and enable the elastic member to act on the wiper member, both ends of the connecting portion have a boss extending along its length direction, the slot is arranged on the boss, and the elastic member is a torsion spring sleeved on the boss, the free end of one torsion arm of the torsion spring is installed on the outer shell, and the free end of the other torsion arm is installed on the connecting portion.

[0018] In order to ensure that the floor brush module collects large particles of debris, preferably, a gap is left between the front side of the shell and the surface of the object to be cleaned to form an air inlet channel, and the inlet of the air inlet channel is the air inlet port.

[0019] In the above solution, the floor brush module further comprises a brush head for cleaning the surface of the object to be cleaned, the brush head is rotatably disposed in the dust suction chamber, and the wiper is located in front of the brush head.

[0020] In order to prevent the high-speed centrifugal force of the brush head from knocking particles out of the dust suction chamber when the wiper opens the air inlet, a blocking bar is provided between the brush head and the wiper to prevent particles from being knocked out of the dust suction chamber by the brush head, and the blocking bar extends along the length direction of the wiper.

[0021] In order to further prevent water stains from being left on the floor after cleaning, a scraper strip is provided at the rear side of the brush head at the bottom of the housing.

[0022] The technical solution adopted by the utility model to solve the second technical problem is: a cleaning machine, characterized by having the floor brush module described above.

[0023] In the above scheme, the cleaning machine also includes a fan module and a separation module for separating a mixture of water and dust. Along the airflow path, the separation module is located between the floor brush module and the fan module, and the floor brush module, the separation module and the fan module are fluidically connected.

[0024] Compared with the prior art, the utility model has the following advantages: the utility model sets a driving component, which can drive the wiper element to flip, thereby ensuring the reliability of the wiper element in opening or closing the air inlet, so as to improve the cleaning effect of the cleaning machine; in addition, the setting of the driving component can control the wiper element to reduce the time of friction with the ground, which not only improves the life of the wiper element, but also reduces the resistance during propulsion, making the cleaning machine easier to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a cleaning machine according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 Cross-sectional view of (wiper element closing air inlet);

[0027] Figure 3 for Figure 1 Cross-sectional view (wiper element opens air inlet);

[0028] Figure 4 for Figure 1 A schematic diagram of the structure of the blocking strip in FIG.

[0029] Figure 5 for Figure 1 A schematic diagram of the structure of the wiper element and the drive assembly;

[0030] Figure 6 for Figure 1 Schematic diagram of the structure of the wiper member and the elastic member. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] like Figures 1 to 6 As shown, it is a preferred embodiment of the utility model. In this embodiment, the floor brush module includes a shell 1, a brush head 2, a wiper 3, a scraper strip 4 and a drive assembly 5. The shell 1 has a dust suction chamber 11 inside, and the shell 1 also has an air inlet 12 on the front side of the floor brush module in the direction of travel. The shell 1 also has an air outlet 13 connected to the downstream fan module of the cleaning machine. Along the air flow path, the air outlet 13 is located downstream of the air inlet 12, and both are fluidly connected to the dust suction chamber 11. The brush head 2 is used to clean the object to be cleaned, and the brush head 2 can be rotatably arranged in the dust suction chamber 11. Of course, the brush head 2 can adopt a traditional roller brush structure, but the brush head 2 in this embodiment adopts a disc brush structure, that is, the shell 1 has at least two dust suction chambers 11 in the width direction of the floor brush module, and a brush head 2 is correspondingly rotatably arranged in each dust suction chamber 11, and the rotation axis of each brush head 2 extends vertically. The floor brush module mentioned here is suitable for use in a cleaning machine. For example, a floor scrubber, in addition to the floor brush module, also includes a fan module and a separation module for separating a mixture of water and dust. Along the airflow path, the separation module is located between the floor brush module and the fan module, and the floor brush module, the separation module and the fan module are fluidically connected. The three can be coordinated using existing technologies, and the separation module and the fan module can also use existing structures.

[0033] The wiper 3 is located in front of the brush head 2. The wiper 3 is strip-shaped and can be turned upside down on the front side of the housing 1. The wiper 3 can open the air inlet 12 when turned up, and close the air inlet 12 when turned down.

[0034] like Figure 2 , 3 As shown in Figure 5, the driving assembly 5 is used to drive the wiper member 3 to flip over. The driving assembly 5 includes a driving portion 31, an elastic member 51, a driving member 52 and a swing arm 53. The driving portion 31 is arranged on the connecting portion 32 of the wiper member 3. The elastic member 51 acts on the wiper member 3 to keep the wiper member 3 in a tendency to flip upward.

[0035] The driving member 52 may be a motor, which is disposed on the housing 1. The upper end of the swing arm 53 is connected to the driving member 52, and the lower end can swing up and down. The lower end of the swing arm 53 can swing downward until it presses against the driving portion 31, so that the wiper member 3 turns downward and closes the air inlet 12. Figure 2 and the lower end of the swing arm 53 can swing upward to a state of being disengaged from the driving portion 31, the wiper member 3 flips upward under the action of the elastic member 51, the air inlet 12 is opened, such as Figure 3 In this embodiment, the swing angle of the swing arm 53 is between 0° and 30°.

[0036] In this embodiment, the wiper component 3 includes a connecting portion 32 and a scraper 33, the driving portion 31 is arranged on the connecting portion 32, both ends of the connecting portion 32 are provided with slots 321, the outer shell 1 is provided with a pin shaft extending along the length direction of the wiper component 3, the pin shaft is inserted in the slot 321, and the connecting portion 32 can rotate relative to the pin shaft, the scraper 33 is installed on the connecting portion 32, and the elastic member 51 acts on the connecting portion 32, specifically: both ends of the connecting portion 32 have a boss 322 extending along the length direction thereof, the slot 321 is arranged on the boss 322, the elastic member 51 is a torsion spring sleeved on the boss 322, the free end of one torsion arm of the torsion spring is installed on the outer shell 1, and the free end of the other torsion arm is installed on the connecting portion 32.

[0037] The scraper 33 is a flexible member. When the wiper member 3 closes the air inlet 12, the lower part of the scraper 33 can be interference fit with the surface of the object to be cleaned, closing the air inlet 12. Figure 2 In the state where the wiper member 3 opens the air inlet 12, the lower portion of the scraper 33 is out of contact with the surface of the object to be cleaned, and the air inlet 12 is opened, as Figure 3 shown.

[0038] In this embodiment, a gap is left between the front side of the housing 1 and the surface of the object to be cleaned to form an air inlet channel, and the inlet of the air inlet channel is the air inlet 12 .

[0039] In order to prevent the high-speed centrifugal force of the brush head 2 from knocking particles out of the dust suction chamber 11 when the wiper member 3 opens the air inlet 12, a blocking bar 6 is provided between the brush head 2 and the wiper member 3 to prevent particles from being knocked out of the dust suction chamber 11 by the brush head 2. The blocking bar 6 extends along the length direction of the wiper member 3.

[0040] In order to further prevent water stains from being left on the floor after cleaning, a scraper strip 4 is provided at the rear side of the brush head 2 at the bottom of the housing 1 .

[0041] The working process of the cleaning machine of this embodiment is as follows:

[0042] When the cleaning machine moves forward, the wiper element 3 is in a state of opening the air inlet 12 (such as Figure 3As shown in the figure, particles and stains can smoothly enter the dust collection chamber 11, and enter the air duct after being picked up by the brush head 2. The brush head 2 is in a wet state when working, and the stains are peeled off and transferred backwards through contact with the ground, and then transferred to the scraper bar 4 at the rear. Through the cooperation of the scraper bar 4 at the rear and the negative pressure suction of the fan module, the garbage and water stains are efficiently brought into the separation module;

[0043] When the cleaning machine moves backward, the swing arm 53 is in the lower limit position (swing angle 0-30°) and pushes the driving part 31 on the connecting part 32, so that the scraper 33 is in a state of closing the air inlet 12 (such as Figure 2 As shown in the figure, particles and water are intercepted inside the dust suction chamber 11, and the scraper 33 and the ground have an interference fit of 1mm, so as to ensure that the "drag back water stains" of the cleaning machine are uniform. When working, the brush head 2 is in a wet state, and the stains are peeled off and transferred backwards through contact with the ground, and then transferred to the scraper bar 4 at the rear. Through the cooperation of the scraper bar 4 at the rear and the negative pressure suction of the fan module, the garbage and water stains are efficiently brought into the separation module C.

[0044] When the cleaning machine moves forward again, the swing arm 53 is in the upper limit position and the driving part 31 on the connecting part 32 is released. The scraper 33 is in the state of "opening" the air inlet 12 through the elastic force and negative pressure of the torsion spring, and the particles and stains enter the inner side of the dust suction chamber 11. The brush head 2 is in a wet state when working, and the stains are peeled off and transferred backward through contact with the ground, and are transferred to the scraper bar 4 at the rear. Through the cooperation of the scraper bar 4 at the rear and the negative pressure suction of the fan module, the garbage and water stains are efficiently brought into the separation module C, and the cycle is repeated.

[0045] When the cleaning machine is stopped, the wiper member 3 is in a state of opening the air inlet 12 by default, so that a large amount of wind can take away the residual water in the brush head 2 and the dust suction chamber 11, thereby reducing the shutdown residue.

[0046] Generally speaking, the surface of the object to be cleaned referred to in this article refers to the ground.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0048] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A floor brush module for a cleaning machine, comprising: A housing (1) having a dust suction chamber (11) therein; the housing (1) also has an air inlet (12) on the front side of the floor brush module in the direction of travel; the housing (1) also has an air outlet (13) for communicating with a downstream fan module of the cleaning machine; along the air flow path, the air outlet (13) is located downstream of the air inlet (12), and both are in fluid communication with the dust suction chamber (11); A wiper member (3) in the form of a strip, which can be turned upside down and arranged on the front side of the housing (1), and the wiper member (3) can open the air inlet (12) when turned upside down, and close the air inlet (12) when turned downside down; It is characterized in that it also comprises a driving assembly (5) for driving the wiper element (3) to flip, wherein the driving assembly (5) comprises a driving part (31) which is arranged on the wiper element (3); The elastic member (51) acts on the wiper member (3) to keep the wiper member (3) in a tendency to flip upwards at all times; A driving member (52) is disposed on the housing (1); The upper end of the swing arm (53) is connected to the driving member (52), and the lower end can swing up and down. The lower end of the swing arm (53) can swing downward to press against the driving member (31), thereby causing the wiper member (3) to flip downward; and the lower end of the swing arm (53) can swing upward to a state of being separated from the driving member (31), and the wiper member (3) flips upward under the action of the elastic member (51).

2. The floor brush module according to claim 1, characterized in that: The wiper component (3) comprises a connecting portion (32) and a scraper (33), both ends of the connecting portion (32) are provided with slots (321), the housing (1) is provided with a pin shaft extending along the length direction of the wiper component (3), the pin shaft is inserted into the slot (321), and the connecting portion (32) can rotate relative to the pin shaft, the scraper (33) is mounted on the connecting portion (32), the elastic component (51) acts on the connecting portion (32), and the driving portion (31) is arranged on the connecting portion (32).

3. The floor brush module according to claim 2, characterized in that: The scraper (33) is a flexible member. When the wiper member (3) closes the air inlet (12), the lower portion of the scraper (33) can be interference-fitted with the surface of the object to be cleaned; when the wiper member (3) opens the air inlet (12), the lower portion of the scraper (33) is out of contact with the surface of the object to be cleaned.

4. The floor brush module according to claim 2, characterized in that: Both ends of the connecting portion (32) have a boss (322) extending along the length direction thereof, the slot (321) is arranged on the boss (322), the elastic member (51) is a torsion spring sleeved on the boss (322), the free end of one torsion arm of the torsion spring is mounted on the housing (1), and the free end of the other torsion arm is mounted on the connecting portion (32).

5. The floor brush module according to any one of claims 1 to 4, characterized in that: An air inlet passage is formed by a gap between the front side of the housing (1) and the surface of the object to be cleaned, and the inlet of the air inlet passage is the air inlet port (12).

6. The floor brush module according to any one of claims 1 to 4, characterized in that: The floor brush module also comprises a brush head (2) for cleaning the surface of an object to be cleaned; the brush head (2) is rotatably arranged in the dust suction chamber (11); and the wiper (3) is located in front of the brush head (2).

7. The floor brush module according to claim 6, characterized in that: A blocking strip (6) is provided between the brush head (2) and the wiper member (3) for preventing particles from being knocked out of the dust suction chamber (11) by the brush head (2), and the blocking strip (6) extends along the length direction of the wiper member (3).

8. The floor brush module according to any one of claims 1 to 4, characterized in that: A scraper strip (4) is also provided at the bottom of the housing (1) on the rear side of the brush head (2).

9. A cleaning machine, characterized in that: The invention comprises a floor brush module as claimed in any one of claims 1 to 8.

10. The cleaning machine according to claim 9, characterized in that: The cleaning machine also includes a fan module and a separation module for separating a mixture of water and dust. Along the airflow path, the separation module is located between the floor brush module and the fan module, and the floor brush module, the separation module and the fan module are fluidically connected.

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