阅读说明：本技术 一种洗地机 (Floor cleaning machine ) 是由 刘佳灵 冯书周 于 2021-09-30 设计创作，主要内容包括：本发明涉及一种洗地机,该洗地机包括地刷以及连接在地刷上方且能相对地刷摆动的机身,地刷底部具有吸尘口,吸尘口内转动地设置有刷件,沿着流体流动方向,机身内依次设置有污水箱和导风外壳,通过在机身中部与污水箱和导风外壳之间对应的位置开设出口,能够有效的将风机抽吸形成的气流从出口处排出,实现了负压源的功能,且由于洗地机在使用工作时,机身都会有一定程度的倾斜,这样出口的位置设计,还能避免气流吹向操作者,十分实用。(The invention relates to a floor washing machine, which comprises a floor brush and a machine body which is connected above the floor brush and can swing relative to the floor brush, wherein the bottom of the floor brush is provided with a dust suction port, a brush piece is rotatably arranged in the dust suction port, a sewage tank and an air guide shell are sequentially arranged in the machine body along the flowing direction of fluid, and an outlet is arranged at the corresponding position between the middle part of the machine body and the sewage tank and the air guide shell, so that airflow formed by suction of a fan can be effectively discharged from the outlet, the function of a negative pressure source is realized, and the machine body can be inclined to a certain degree when the floor washing machine is used and works, so that the position design of the outlet can also avoid the airflow from blowing to an operator, and the floor washing machine is very practical.)

1. A floor washing machine comprises a floor brush (01) and a machine body (11) which is connected above the floor brush (01) and can swing relative to the floor brush (01), wherein a dust suction port is formed in the bottom of the floor brush (01), a brush piece is rotatably arranged in the dust suction port, and a sewage tank (25) and an air guide shell (3) are sequentially arranged in the machine body (11) along the flowing direction of fluid;

the method is characterized in that:

the machine body (11) is provided with an outlet (13) at the middle part, the air guide shell (3) is provided with an air inlet channel (3a) and an air exhaust channel (3b), wherein the air inlet channel (3a) is communicated with an air outlet (2a) of the sewage tank (25), the air exhaust channel (3b) is communicated with the outlet (13), and the fan (12) is arranged in the air guide shell (3) and is arranged on a flow path of fluid.

2. The floor scrubber of claim 1, wherein: the air guide shell (3) comprises a shell (31) and a guide pipe (30) arranged below the shell (31), the fan (12) is arranged in the shell (31) and a gap is reserved between the fan and the inner wall of the shell (31), an exhaust chamber (32) used for collecting fan exhaust is further formed, the air inlet channel (3a) and the exhaust channel (3b) are formed in the guide pipe (30), the inlet end of the fan (12) is communicated with the air inlet channel (3a), and the exhaust chamber (32) is communicated with the exhaust channel (3 b).

3. The floor scrubber of claim 2, wherein: the honeycomb duct (30) vertically extends, a partition plate (33) which is consistent with the extending direction of the honeycomb duct is arranged in the honeycomb duct, the partition plate (33) forms two flow channels which are arranged side by side with the honeycomb duct (30) at intervals, one of the flow channels forms the air inlet channel (3a), and the other flow channel forms the air exhaust channel (3 b).

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

5. The floor scrubber of claim 4, wherein: honeycomb duct (30) can connect with dismantling the bottom of casing (31), outwards protruding convex part (35) that is equipped with on honeycomb duct (30) outer wall, casing (31) bottom be provided with in the corresponding position with buckle (36) that convex part (35) match.

6. The floor scrubber of claim 5, wherein: the sewage tank (25) comprises a cover body (21) and a tank body (250) with an opening (200) at the top, the cover body (21) is covered at the opening (200), the air outlet (2a) is arranged at the top of the cover body (21), a top plate (211) of the cover body (21) is arranged from one side to the other side in a downward inclined mode, and the lower port corresponding to the flow guide pipe (30) is of an inclined structure matched with the top plate (211).

7. The floor scrubber of claim 6, wherein: fuselage (11) have at the rear side of scrubber scrubbing brush (01) advancing direction and arrange from top to bottom and open two installing ports (111) towards the back, install opening (111) that correspond separately are located respectively in clear water tank (14) and sewage case (25), wind-guiding shell (3) are arranged the top of sewage case (25) and are located the front side of clear water tank (14), air outlet (2a) set up the front side of sewage case (25) and with inlet air channel (3a) correspond the setting, export (13) are located the front side of fuselage (11).

8. The floor scrubber of claim 7, wherein: the exhaust port (301) of the exhaust channel (3b) is laterally arranged at the bottom of the guide pipe (30), a support plate (16) is further arranged on the periphery of the guide pipe (30), the clear water tank (14) is mounted on the support plate (16) and is spaced from the support plate (16) to form a slow flow channel (131), and the exhaust port (301) of the exhaust channel (3b) is communicated with the outlet (13) through the slow flow channel (131).

9. The floor scrubber of claim 8, wherein: the bottom wall of the clean water tank (14) is also provided with a slow flow part (302) used for reducing the flow velocity of the fluid in the slow flow channel (131), and the slow flow part (302) is formed by protruding downwards from the bottom wall of the clean water tank (14) and extends into the slow flow channel (131).

10. The floor scrubber of claim 9, wherein: the flow slowing part (302) is a boss formed on the bottom wall of the clean water tank (14).

Technical Field

The invention relates to the field of household cleaning tools, in particular to a floor washing machine.

Background

With the development of household cleaning technology, household cleaning equipment is gradually diversified, and more cleaning equipment is introduced into thousands of households. The traditional dust collector has certain use limitation, and the structural design and the sealing performance of parts of the traditional dust collector can only meet the use scene of a dry environment but cannot be used in a wet environment; when the motor is in a wet environment, sewage carried by dust collection airflow inevitably permeates into the motor under the action of negative pressure, and once water enters the motor through a gap of the shell at the motor, the motor is easy to lose efficacy and damage.

Obviously, the cleaning machine which only can absorb dust but cannot absorb water cannot meet the use requirements of consumers, so that some enterprises develop a floor washing machine which can be used in both dry and wet environments, and particularly, a dust collection barrel part of the floor washing machine is improved to a certain extent, so that dry and wet garbage is well separated, and water and air are prevented from flowing to a negative pressure source. For example, chinese patent application No. CN202010568160.1 (publication No. CN111820816A) discloses a "dry and wet sewage tank assembly for a water machine", in which a sewage inlet pipe is disposed at the bottom of a sewage tank, a filter assembly is disposed inside the sewage tank and sleeved on the sewage inlet pipe, a tank cover assembly is mounted on the sewage tank, liquid and solid of the mixed fluid are retained in the sewage tank after passing through the sewage tank, and an air flow continues to flow to a downstream negative pressure source, an air outlet is disposed at the end of an air path of a floor washing machine, i.e., a housing of a fan module in the floor washing machine, and the air flow sucked by the negative pressure is finally discharged through the air outlet.

Certainly, there is also some patents, think about and improve to the problem of airing exhaust that exists in the aforesaid floor cleaning machine, chinese utility model patent that for example patent number is CN201520857080.2 just discloses a belt cleaning device, and the main part among the device is equipped with and turns to the wind channel, turns to the one end in wind channel and the air outlet intercommunication of vacuum source, and the other end that turns to the wind channel extends towards the scrubbing brush direction, and turns to the wind channel and covers the one end intercommunication of the air-out pipeline after the organism that covers in the scrubbing brush direction extends and the main part, covers the main air outlet intercommunication that the below set up behind the other end of air-out pipeline and the organism, and the position of setting up of main air outlet is located the bottom of main part. Therefore, the air path is guided to the lower part for discharge through a series of pipeline designs, and the air path is not blown to the human body, so that the discomfort in use can be avoided.

Although the air path is improved to a certain extent by the above improved scheme, a complex guide structure is required, which not only occupies a relatively tight internal space in the machine body, but also causes great working noise due to the design of a plurality of corners of the air path.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a scrubber that is simplified in air path structure and can avoid blowing to an operator, in view of the current state of the prior art.

The second technical problem to be solved by the present invention is to provide a floor scrubber that effectively avoids noise of the air path in view of the current situation of the prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a floor washing machine comprises a floor brush and a machine body which is connected above the floor brush and can swing relative to the floor brush, wherein a dust suction port is formed in the bottom of the floor brush, a brush piece is rotatably arranged in the dust suction port, and a sewage tank and an air guide shell are sequentially arranged in the machine body along the flowing direction of fluid;

the air guide shell is provided with an air inlet channel and an air exhaust channel, the air inlet channel is communicated with an air outlet of the sewage tank, the air exhaust channel is communicated with the outlet, and the fan is arranged in the air guide shell and is arranged on a flow path of fluid.

The air guide shell can be made in various air guide forms, preferably, the air guide shell comprises a shell and a guide pipe arranged below the shell, the fan is arranged in the shell, a gap is reserved between the fan and the inner wall of the shell, an exhaust cavity used for collecting the exhaust of the fan is further formed, the air inlet channel and the exhaust channel are formed in the guide pipe, the inlet end of the fan is communicated with the air inlet channel, and the exhaust cavity is communicated with the exhaust channel.

Specifically, the draft tube extends vertically, a partition plate which is consistent with the extending direction of the draft tube is arranged in the draft tube, the draft tube is formed into two flow channels which are arranged side by side at intervals by the partition plate, one flow channel forms the air inlet channel, and the other flow channel forms the air exhaust channel.

In order to accelerate the flow velocity at the port, preferably, the inner diameter of the upper end of the exhaust channel at the port is gradually reduced from top to bottom to form a flow guide part.

In order to facilitate nursing of the guide pipe and the shell, the guide pipe can be detachably connected to the bottom of the shell, a convex part is arranged on the outer wall of the guide pipe in an outward protruding mode, and a buckle matched with the convex part is arranged at the bottom of the shell in a corresponding position.

Preferably, the sewage case has open box including lid and top, the lid is located uncovered department, the air outlet is seted up the top of lid, just the roof of lid is arranged from one of them side direction other side downward sloping, corresponds the lower port of honeycomb duct be with the slope structure that the roof matches.

Clear water tank and sewage case can have different forms of arranging in the fuselage, preferably, the fuselage has two installing ports of arranging and opening backward from top to bottom at the rear side of scrubber scrubbing brush advancing direction, clear water tank and sewage case are located respectively in the installing port that corresponds, the wind-guiding shell is arranged the top of sewage case and is located clear water tank's front side, the air outlet set up in the front side of sewage case and with inlet air channel corresponds the setting, the export is located the front side of fuselage.

In order to avoid excessive noise caused by excessive guidance before air flow is discharged, the discharge port of the air exhaust channel is laterally arranged at the bottom of the flow guide pipe, a support plate is further arranged on the periphery of the flow guide pipe, the clear water tank is arranged on the support plate, a gap is reserved between the clear water tank and the support plate to form a slow flow channel, and the discharge port of the air exhaust channel is communicated with the outlet through the slow flow channel.

In order to further solve the second technical problem, the invention adopts the following technical scheme: the bottom wall of the clean water tank is also provided with a slow flow part for reducing the flow velocity of the fluid in the slow flow channel, and the slow flow part is formed by downwards protruding from the bottom wall of the clean water tank and extends into the slow flow channel.

Specifically, the flow slowing part is a boss formed on the bottom wall of the clean water tank.

Compared with the prior art, the invention has the advantages that: in this floor scrubber, offer the export through the position that corresponds between fuselage middle part and sewage case and wind guide shell, can effectually discharge the air current that the fan suction formed from the exit, realized the function of negative pressure source, and because floor scrubber is using the during operation, the fuselage all can have the slope of certain degree, the position design of export like this can also avoid the air current to blow to the operator, very practicality.

Drawings

FIG. 1 is a schematic view of the overall structure of a scrubber according to an embodiment of the invention;

FIG. 2 is a cross-sectional view showing the overall structure of the body in the embodiment of the present invention;

FIG. 3 is an exploded view of another angle of the fuselage;

fig. 4 is an overall schematic view of an air guide casing according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view at another angle to FIG. 4;

FIG. 6 is an overall view of the waste water tank according to the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 6, a preferred embodiment of the present invention. In this embodiment, the floor washing machine comprises a floor brush 01 and a machine body 11 which is connected above the floor brush 01 and can swing back and forth relative to the traveling direction of the floor brush 01, a dust suction port is formed in the bottom of the floor brush 01, and a brush piece is rotatably arranged in the dust suction port, so that the floor brush part is not a key point to be protected in the present application and is only briefly described here.

In the present embodiment, the air guide housing 3, the clean water tank 14 and the sewage tank 25 are provided in the body 11, and the sewage tank 25 and the air guide housing 3 are provided in this order along the fluid flow direction, that is, the air guide housing 3 described above is disposed downstream of the sewage tank 25. In order to guide the airflow flowing out of the sewage tank 25, the air guide housing 3 has an air inlet channel 3a and an air outlet channel 3b, wherein the air inlet channel 3a is communicated with the air outlet 2a of the sewage tank 25, a grille 214 is further disposed at the air outlet 2a, and the fan 12 is disposed in the air guide housing 3 and disposed on a flow path of the fluid (the fan 12 only shows a casing), so that the fan 12 in the air guide housing 3 can function as a negative pressure source.

Of course, the structure of the air guiding housing 3 for realizing the air inlet channel 3a and the air outlet channel 3b can be various, in this embodiment, the air guiding housing 3 includes a housing 31 and a guiding pipe 30 disposed below the housing 31, the fan 12 is disposed in the housing 31 and spaced from the inner wall of the housing 31, so as to form an air outlet chamber 32 for collecting the air exhausted by the fan, the air inlet channel 3a and the air outlet channel 3b are both formed in the guiding pipe 30, and wherein the inlet end of the fan 12 is communicated with the air inlet channel 3a, and the air outlet chamber 32 is communicated with the air outlet channel 3 b. In addition, the draft tube 30 in this embodiment extends vertically, a partition 33 is disposed inside the draft tube 30, and the partition 33 partitions the draft tube 30 into two channels, one of the two channels forming an air inlet channel 3a and the other channel forming an air outlet channel 3 b. Specifically, the air supply passage 3a is located at the center of the bottom of the housing 31, and the air discharge passage 3b is arranged on one side of the air supply passage 3a in the circumferential direction.

The inner diameter of the upper end of the exhaust passage 3b at the port is gradually reduced from top to bottom to form a flow guide part 34. This accelerates the flow velocity of the air flow in the exhaust passage 3b, and prevents the air flow from forming turbulent flow in the exhaust chamber 32. In addition, the draft tube 30 is detachably connected to the bottom of the housing 31, a convex portion 35 is convexly provided on the outer wall of the draft tube 30, and a latch 36 matching with the convex portion 35 is provided at a corresponding position on the bottom of the housing 31.

From the overall layout of the body 11, the body 11 has two mounting ports 111 arranged up and down and having a backward opening at the rear side of the traveling direction of the scrubber brush 01, the clean water tank 14 and the sewage tank 25 are respectively provided in the respective mounting ports 111, the air guide housing 3 is arranged above the sewage tank 25 and positioned at the front side of the clean water tank 14, the air outlet 2a is arranged at the front side of the sewage tank 25 and positioned corresponding to the air inlet channel 3a, and the outlet 13 is positioned at the front side of the body 11. In this embodiment, the air flow discharged from the discharge chamber 32 is collected in the middle region of the body 11 under the guidance of the discharge passage 3b, and is finally discharged from the middle portion of the body 11, the body 11 is provided with an outlet 13 at a position (i.e., the middle portion) corresponding to the space between the sewage tank 25 and the air guide casing 3, and the discharge passage 3b is communicated with the outlet 13.

In the present embodiment, the outlet 13 is designed to avoid blowing air to the operator, and noise can be reduced by means of the clean water tank 14, specifically, the discharge port 301 of the air discharge channel 3b is laterally opened at the bottom of the draft tube 30, the support plate 16 is further provided on the periphery of the draft tube 30, the clean water tank 14 is mounted on the support plate 16, and forms the slow flow channel 131 with a gap from the support plate 16, and the discharge port 301 of the air discharge channel 3b is communicated with the outlet 13 through the slow flow channel 131. A slow flow part 302 for reducing the flow rate of the fluid in the slow flow channel 131 is further disposed on the bottom wall of the clean water tank 14, and the slow flow part 302 is formed by protruding downwards from the bottom wall of the clean water tank 14 and extends into the slow flow channel 131. The flow retarding 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 utilizes the space between the bottom of the clean water tank 14 and the support plate 16 to enable high-speed fluid to enter the relatively spacious slow flow channel 131, so as to greatly delay the flow rate at the outlet 13, thereby reducing wind noise, and because the slow flow part 302 is directly formed at the bottom of the clean water tank 14, when wind noise is generated in water contained in the clean water tank 14, because the vibration frequencies of the water and the clean water tank 14 are different, the resonance generated by the water and the clean water tank 14 can eliminate the sound wave of a part of noise, thereby further realizing the control of the noise.

In order to ensure the fluid-tight seal between the sewage tank 25 and the flow guide pipe 30, the sewage tank 25 includes a cover 21 and a tank 250 having an opening 200 at the top, the cover 21 is covered at the opening 200, the air outlet 2a is opened at the top of the cover 21, the cover 21 includes a top plate 211 and a side 212 extending downward from the circumference of the top plate 211, the top plate 211 of the cover 21 is arranged to be inclined downward from one side to the other side, and the lower port of the flow guide pipe 30 is in an inclined structure matching with the top plate 211. And a seal 4 is also sealed therebetween.

The term "communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a conduit, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Also, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, may be used in the description and claims to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are determined based on the example orientations shown in the figures. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.