A floor cleaning machine

Abstract

The present application relates to a kind of floor washing machines, the floor washing machine includes floor brush and the body connected above floor brush and can swing relative to floor brush, floor brush bottom has dust suction port, and brush piece is rotationally arranged in dust suction port, along the fluid flow direction, sewage tank and air guide shell are sequentially arranged in body, outlet is opened in the corresponding position between sewage tank and air guide shell in the middle of body, air flow formed by fan suction can be effectively discharged from outlet, the function of negative pressure source is realized, and because floor washing machine is in use when working, body will have a certain degree of inclination, so that the position design of outlet, air flow can also be avoided to operator, it is very practical.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household cleaning tools, in particular to a floor washing machine. BACKGROUND

[0002] With the development of household cleaning technology, household cleaning equipment is gradually diversified, and more and more cleaning equipment has entered thousands of households. The traditional dust collector has certain use limitations, and the structure design and sealing of its parts can only meet the use scene of dry environment and cannot be used in wet environment; when in wet environment, the sewage carried by the dust collection air flow will inevitably penetrate to the motor under the action of negative pressure, and once the water enters the motor through the gap of the motor housing, the motor will be easily damaged.

[0003] Obviously, the cleaning machine that can only suck dust but cannot suck water cannot meet the use needs of consumers, and therefore some enterprises have developed a floor washing machine that can be used in both dry and wet environments, especially the dust collecting bucket part of the floor washing machine has been improved to a certain extent, so that dry and wet garbage can be better separated, thereby avoiding the flow of water vapor to the negative pressure source. For example, the Chinese invention application with the patent number CN202010568160.1 (publication announcement number: CN111820816A) discloses a water machine dry and wet dual-purpose sewage tank assembly, a sewage inlet pipe is arranged at the bottom of the sewage tank body, a filter assembly is arranged in the inside of the sewage tank body and sleeved on the sewage inlet pipe, a tank cover assembly is installed on the sewage tank body, after the mixed fluid passes through the sewage tank, the liquid and solid are left in the sewage tank, and the air flow continues to flow to the downstream negative pressure source. An air outlet is arranged at the end of the air path of the floor washing machine, i.e. the shell of the fan module in the floor washing machine, and the air flow sucked by the negative pressure is finally discharged from the air outlet. However, the air outlet designed in this way will guide the air flow to the operator, and it is very uncomfortable to use for a long time.

[0004] Of course, some patents have also thought about and improved the above-mentioned air exhaust problem of the floor washing machine, for example, the Chinese utility model patent with the patent number CN201520857080.2 discloses a cleaning device. The main body of the device is provided with a turning air duct, one end of the turning air duct is communicated with the air outlet of the vacuum source, the other end of the turning air duct extends towards the direction of the floor brush, and the end of the turning air duct extending towards the direction of the floor brush is communicated with one end of the air outlet pipeline on the machine rear cover of the main body. The other end of the air outlet pipeline is communicated with the main air outlet arranged below the machine rear cover, and the setting position of the main air outlet is located at the bottom end of the main body. In this way, the air path is guided to the lower part for exhaust and will not blow to the human body, so that the use discomfort can be avoided.

[0005] The above-mentioned improvement scheme, although improves the air path to a certain extent, needs a complex guiding structure, which not only occupies the internal space of the body which is already relatively tight, but also causes huge working noise due to the multiple corner designs of the air path. SUMMARY

[0006] The first technical problem to be solved by the present application is to provide a simplified air path structure and a scrubber that can avoid blowing to the operator in view of the status quo of the prior art.

[0007] The second technical problem to be solved by the present application is to provide a scrubber that can effectively avoid air path noise in view of the status quo of the prior art.

[0008] The technical scheme adopted by the present application to solve the above-mentioned first technical problem is as follows: a scrubber, comprising a brush and a body connected above the brush and capable of swinging relative to the brush, the bottom of the brush being provided with a dust suction port, a brush member being rotatably arranged in the dust suction port, and a sewage tank and a wind guide shell being sequentially arranged in the body along the fluid flow direction.

[0009] The body is provided with an outlet at the middle part, the wind guide shell is provided with an air inlet channel and an air outlet channel, the air inlet channel is in communication with the air outlet of the sewage tank, the air outlet channel is in communication with the outlet, and the fan is arranged in the wind guide shell and on the fluid flow path.

[0010] The wind guide form of the wind guide shell can be various, preferably, the wind guide shell comprises a shell and a flow guide pipe arranged below the shell, the fan is arranged in the shell and spaced apart from the inner wall of the shell to form an exhaust chamber for collecting the exhaust of the fan, the air inlet channel and the air outlet channel are formed in the flow guide pipe, and the inlet end of the fan is in communication with the air inlet channel, and the exhaust chamber is in communication with the air outlet channel.

[0011] Specifically, the flow guide pipe extends vertically and is provided with a partition plate inside the flow guide pipe, the partition plate separates the flow guide pipe to form two flow channels arranged side by side, one of the flow channels forms the air inlet channel, and the other flow channel forms the air outlet channel.

[0012] In order to accelerate the flow rate at the port, preferably, the upper end of the air outlet channel gradually decreases in diameter from top to bottom at the port to form a flow guide part.

[0013] In order to facilitate the maintenance of the flow guide pipe and the shell, the flow guide pipe is detachably connected to the bottom of the shell, the outer wall of the flow guide pipe is outwardly provided with a protruding part, and the bottom of the shell is provided with a buckle matched with the protruding part at the corresponding position.

[0014] Preferably, the sewage tank comprises a cover and a tank with an open top, the cover is arranged on the open top, the air outlet is arranged on the top of the cover, and the top of the cover is arranged to be inclined downward from one side to the other side, and the lower end of the flow guide pipe is arranged to be inclined to match the top.

[0015] The clean water tank and the sewage tank can be arranged in different ways in the machine body. Preferably, the machine body has two mounting ports arranged in an up-down manner and opening rearward on the rear side in the direction of travel of the floor brush of the scrubber, the clean water tank and the sewage tank are arranged in the respective mounting ports, the air guide shell is arranged above the sewage tank and on the front side of the clean water tank, the air outlet is arranged on the front side of the sewage tank and corresponds to the air inlet channel, and the outlet is arranged on the front side of the machine body.

[0016] In order to avoid excessive noise caused by excessive air flow guidance before the air flow is discharged, the discharge port of the air discharge channel is arranged laterally on the bottom of the flow guide pipe, the periphery of the flow guide pipe is further provided with a support plate, the clean water tank is arranged on the support plate and spaced from the support plate to form a slow flow channel, and the discharge port of the air discharge channel is connected to the outlet through the slow flow channel.

[0017] In order to further solve the second technical problem, the technical solution adopted by the present application is that a slow flow part for reducing the flow rate of fluid in the slow flow channel is further arranged on the bottom wall of the clean water tank, the slow flow part is formed by being protruded downward from the bottom wall of the clean water tank and extending into the slow flow channel.

[0018] Specifically, the slow flow part is a boss formed on the bottom wall of the clean water tank.

[0019] Compared with the prior art, the advantage of the present application is that in the scrubber, the outlet is arranged at the corresponding position between the middle of the machine body and the sewage tank and the air guide shell, so that the air flow generated by the air blower can be effectively discharged from the outlet, the function of the negative pressure source is realized, and since the machine body will be inclined to a certain extent during use, the position of the outlet can also avoid the air flow blowing to the operator, which is very practical. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic view of the overall structure of the scrubber in the embodiment of the present application;

[0021] Figure 2 FIG. 2 is a sectional view of the overall structure of the machine body in the embodiment of the present application;

[0022] Figure 3 FIG. 3 is an exploded view of the machine body from another angle;

[0023] Figure 4is an overall schematic diagram of the air guide housing in an embodiment of the present invention;

[0024] Figure 5 for Figure 4 A cross-sectional view from another angle;

[0025] Figure 6 Schematic diagram of the overall sewage tank in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1 to 6 The figure shows a preferred embodiment of the present invention. In this embodiment, the floor scrubber includes a floor brush 01 and a body 11 connected to the top of the floor brush 01 and capable of swinging back and forth relative to the direction of travel of the floor brush 01. The bottom of the floor brush 01 has a dust suction port, and a brush is rotatably disposed within the dust suction port. Since the floor brush portion is not the focus of protection in this application, it is only briefly described here.

[0028] In this embodiment, an air guide housing 3, a clean water tank 14, and a sewage tank 25 are disposed within the body 11. The sewage tank 25 and the air guide housing 3 are sequentially arranged along the direction of fluid flow, i.e., the air guide housing 3 is positioned downstream of the sewage tank 25. To guide the airflow exiting the sewage tank 25, the air guide housing 3 has an air inlet duct 3a and an air outlet duct 3b. The air inlet duct 3a communicates with the air outlet 2a of the sewage tank 25. A grille 214 is also provided at the air outlet 2a. The fan 12 is disposed within the air guide housing 3 and arranged along the fluid flow path (only the housing of the fan 12 is shown). This allows the fan 12 within the air guide housing 3 to function as a negative pressure source.

[0029] Of course, the air guide housing 3 can have a variety of structures for implementing the air inlet channel 3a and the air exhaust channel 3b. In this embodiment, the air guide housing 3 includes a housing 31 and a guide tube 30 disposed below the housing 31. The fan 12 is disposed within the housing 31 and separated from the inner wall of the housing 31 by a gap, thereby forming an exhaust chamber 32 for collecting the fan exhaust. The air inlet channel 3a and the exhaust channel 3b are both formed within the guide tube 30, with the inlet end of the fan 12 communicating with the air inlet channel 3a, and the exhaust chamber 32 communicating with the exhaust channel 3b. Furthermore, the guide tube 30 in this embodiment extends vertically and is internally provided with a partition 33 aligned with its own extension direction. The partition 33 separates the guide tube 30 to form two side-by-side flow channels, one of which forms the air inlet channel 3a, and the other forms the exhaust channel 3b. Specifically, the air inlet channel 3a is located at the center of the bottom of the housing 31, and the exhaust channel 3b is arranged on one side of the circumference of the air inlet channel 3a.

[0030] The upper end of the above-mentioned exhaust passage 3b is gradually reduced in diameter from top to bottom at the port to form a flow guide portion 34. In this way, the flow speed of the airflow in the exhaust passage 3b can be accelerated, and the airflow can be prevented from forming turbulence in the exhaust chamber 32. In addition, the flow guide pipe 30 is detachably connected to the bottom of the housing 31, and a protrusion 35 is outwardly protruded on the outer wall of the flow guide pipe 30, and the bottom of the housing 31 is provided with a buckle 36 corresponding to the protrusion 35.

[0031] From the overall layout of the machine body 11, the above-mentioned machine body 11 has two installation ports 111 arranged in an up-down manner and opening rearward on the rear side of the travel direction of the floor cleaning machine floor brush 01, the clean water tank 14 and the sewage tank 25 are respectively arranged in the corresponding installation port 111, the air guide shell 3 is arranged above the sewage tank 25 and on the front side of the clean water tank 14, the air outlet 2a is arranged on the front side of the sewage tank 25 and corresponds to the air inlet passage 3a, and the outlet 13 is arranged on the front side of the machine body 11. In this embodiment, the airflow discharged from the exhaust chamber 32 is guided by the exhaust passage 3b and gathered in the middle region of the machine body 11, and finally discharged from the middle of the machine body 11, and the machine body 11 is provided with an outlet 13 at the position corresponding to the sewage tank 25 and the air guide shell 3 (i.e. the middle), and the exhaust passage 3b communicates with the outlet 13.

[0032] In this embodiment, the position of the outlet 13 is designed to not only avoid blowing wind to the operator, but also to use the clean water tank 14 to reduce noise, specifically, the discharge port 301 of the above-mentioned exhaust passage 3b is laterally arranged on the bottom of the flow guide pipe 30, the periphery of the flow guide pipe 30 is further provided with a support plate 16, the clean water tank 14 is installed on the support plate 16 and spaced from the support plate 16 to form a slow flow passage 131, and the discharge port 301 of the exhaust passage 3b communicates with the outlet 13 through the slow flow passage 131. A slow flow portion 302 for reducing the flow speed of the fluid in the slow flow passage 131 is further arranged on the bottom wall of the clean water tank 14 and protrudes downward from the bottom wall of the clean water tank 14 into the slow flow passage 131. The slow flow portion 302 in this embodiment is a boss formed on the bottom wall of the clean water tank 14. In this way, the design of the clean water tank 14 uses the space between the bottom of the clean water tank 14 and the support plate 16 to make the high-speed fluid enter the relatively spacious slow flow passage 131, thereby greatly slowing down the flow speed at the outlet 13, thereby reducing the wind noise, and because the slow flow portion 302 is directly formed on the bottom of the clean water tank 14, the water contained in the clean water tank 14 has different vibration frequencies from the clean water tank 14, so that the resonance of the water can eliminate part of the sound waves of the noise, thereby further achieving the control of the noise.

[0033] To ensure the fluid seal between the sewage tank 25 and the flow guide pipe 30, the sewage tank 25 comprises a cover 21 and a tank body 250 with an open top 200, the cover 21 is arranged on the open top 200, the air outlet 2a is arranged on the top of the cover 21, the cover 21 comprises a top plate 211 and a side 212 extending downward from the periphery of the top plate 211, and the top plate 211 of the cover 21 is arranged to be inclined downward from one side to the other side, and the lower end of the flow guide pipe 30 is arranged to be matched with the inclined structure of the top plate 211. And a sealing element 4 is sealed between the two.

[0034] The "communication" referred to in the present application refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as first part and second part), i.e. fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along the flow path, which can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow or a combination thereof.

[0035] In addition, in the specification and claims of the present application, terms indicating directions, such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitation, for example, "up" and "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A floor cleaning machine, comprising a floor brush (01) and a machine body (11) connected above the floor brush (01) and capable of oscillating relative to the floor brush (01), the bottom of the floor brush (01) being provided with a dust suction port, a brush member being rotatably arranged in the dust suction port, and a silt water tank (25) and a wind guide shell (3) being sequentially arranged in the machine body (11) along the fluid flow direction. Characterized in that: the machine body (11) is provided with an outlet (13) at a middle position, the wind guide shell (3) is provided with an air inlet channel (3a) and an air outlet channel (3b), the air inlet channel (3a) is communicated with an air outlet (2a) of the silt water tank (25), a grille (214) is arranged at the air outlet (2a), the air outlet channel (3b) is communicated with the outlet (13), and a fan (12) is arranged in the wind guide shell (3) and is arranged on the fluid flow path. the wind guide shell (3) comprises a shell (31) and a flow guide pipe (30) arranged below the shell (31), an air outlet (301) of the air outlet channel (3b) is laterally arranged at the bottom of the flow guide pipe (30), a support plate (16) is further arranged on the periphery of the flow guide pipe (30), a clean water tank (14) is arranged on the support plate (16) and is spaced apart from the support plate (16) to form a slow flow channel (131), and the air outlet (301) of the air outlet channel (3b) is communicated with the outlet (13) through the slow flow channel (131). a slow flow part (302) for reducing the fluid flow speed in the slow flow channel (131) is further arranged on the bottom wall of the clean water tank (14), the slow flow part (302) is protruded downward from the bottom wall of the clean water tank (14) and extends into the slow flow channel (131), and the slow flow part (302) is a boss formed on the bottom wall of the clean water tank (14).

2. The walk-behind scrubber of claim 1, characterized in that: the fan (12) is arranged in the shell (31) and is spaced apart from the inner wall of the shell (31) to form an exhaust chamber (32) for collecting the exhaust gas of the fan, the air inlet channel (3a) and the air outlet channel (3b) are formed in the flow guide pipe (30), and the inlet end of the fan (12) is communicated with the air inlet channel (3a) and the exhaust chamber (32) is communicated with the air outlet channel (3b).

3. The walk-behind scrubber of claim 2, wherein: the flow guide pipe (30) vertically extends and is provided with a partition plate (33) consistent with the extending direction of the flow guide pipe (30), the partition plate (33) divides the flow guide pipe (30) into two flow passages arranged side by side, one of the flow passages forms the air inlet channel (3a) and the other flow passage forms the air outlet channel (3b).

4. The walk-behind scrubber of claim 3, wherein: the upper end of the air outlet channel (3b) is gradually reduced in diameter from top to bottom at the port to form a flow guide part (34).

5. The machine of claim 4, wherein: the flow guide pipe (30) is detachably connected to the bottom of the shell (31), a convex part (35) is outwardly protruded on the outer wall of the flow guide pipe (30), and a buckle (36) matched with the convex part (35) is arranged at the corresponding position of the bottom of the shell (31).

6. The scrubber of claim 5, characterized in that: The sewage tank (25) comprises a cover (21) and a tank body (250) with an open top (200), the cover (21) is arranged on the open top (200), the air outlet (2a) is arranged on the top of the cover (21), and the top plate (211) of the cover (21) is arranged to be inclined downward from one side to the other side, and the lower end of the flow guide pipe (30) has an inclined structure matching the top plate (211).

7. The machine of claim 6, wherein: The machine body (11) has two installation openings (111) arranged in up-down direction and opening backward on the rear side in the traveling direction of the scrubber brush (01), the clean water tank (14) and the sewage tank (25) are arranged in the corresponding installation openings (111) respectively, the air guide shell (3) is arranged above the sewage tank (25) and on the front side of the clean water tank (14), the air outlet (2a) is arranged on the front side of the sewage tank (25) and corresponds to the air inlet channel (3a), and the outlet (13) is arranged on the front side of the machine body (11).

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