Floor scrubber floor brush structure capable of preventing sewage from flowing back

Abstract

The utility model discloses a scrubber floor brush structure capable of preventing sewage backflow, which comprises a floor brush main body, a rolling brush bin for installing a floor mopping rolling brush is arranged at the front end of the floor brush main body, and the floor mopping rolling brush is contacted with the ground through an opening of the rolling brush bin. The back wall face of the rolling brush bin is provided with a suction opening facing the floor mopping rolling brush, a water spraying component for spraying water to wet the floor mopping rolling brush and a scraping strip for scraping the surface of the floor mopping rolling brush, the suction opening is communicated with a suction device of the floor washing machine through a suction channel in the floor brush body, and a flow stopping piece is installed behind the suction opening and located at the front end of the suction channel. The flow stopping piece is located at the bottom of the suction opening and obliquely extends upwards towards the suction channel to form a water retaining wall, a water containing cavity is formed between the water retaining wall and the inner wall of the suction channel, and when the suction device stops working, negative pressure in the suction channel loses, sewage and garbage which cannot enter the sewage pail in time can flow back to the rear portion of the suction opening, and the water containing cavity is closed. When the suction device is started again, the sewage and the garbage in the water containing cavity can be sucked into the sewage barrel along the suction channel again through the negative pressure when the suction device is started again, so that the sewage and the garbage cannot be leaked out from the suction opening and are temporarily stored in the water containing cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to a floor washing machine field, and specifically relates to a floor washing machine floor brush structure preventing sewage backflow. BACKGROUND

[0002] The floor washing machine is a common ground cleaning equipment in a family, which has the functions of dust cleaning and wet ground wiping, and is popular with the public because of its rapid and convenient ground cleaning in the family.

[0003] The floor washing machine comprises a main machine and a floor brush, the main machine is provided with a suction motor and a sewage tank, the sewage tank is connected with the floor brush through a suction channel at the bottom and connected with the suction motor at the top, the suction motor sucks the inside of the sewage tank to form a negative pressure, and then the suction inlet of the floor brush sucks the dirt on the ground into the sewage tank for temporary storage. However, when the suction motor stops working, the sewage tank loses the negative pressure, and the sewage and garbage in the suction channel that cannot enter the sewage tank will flow back to the suction inlet along the suction channel due to gravity, and even leak out of the suction inlet to the clean ground. SUMMARY

[0004] In order to overcome the defects of the prior art, the utility model provides a floor washing machine floor brush structure preventing sewage backflow.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A floor washing machine floor brush structure preventing sewage backflow, comprising a floor brush main body, a rolling brush warehouse for installing a ground wiping rolling brush is arranged at the front end of the floor brush main body, the ground wiping rolling brush is in contact with the ground through the opening of the rolling brush warehouse, a suction port facing the ground wiping rolling brush, a water spraying component for spraying water to wet the ground wiping rolling brush, and a scraping strip for scraping the surface of the ground wiping rolling brush are arranged on the back wall surface of the rolling brush warehouse, the suction port is connected with the suction device of the floor washing machine through the suction channel in the floor brush main body, a flow stopping piece is arranged at the front end of the suction channel behind the suction port, the flow stopping piece is located at the bottom of the suction port and extends upward and forms a water blocking wall towards the suction channel, and a water holding cavity is formed between the water blocking wall and the inner wall of the suction channel.

[0007] The flow stopping piece comprises a mounting frame and a water blocking wall, the suction channel is connected with the back side of the suction port through a pipe joint, the mounting frame of the flow stopping piece is clamped between the pipe joint and the back side of the suction port, and the water blocking wall extends from the mounting frame to the suction channel.

[0008] The water blocking wall also has a side wall, and the side walls on both sides gradually narrow from the suction port.

[0009] The bottom wall surface of the water blocking wall forms a plurality of stepped levels, and each stepped level forms a negative pressure suction port with a gradually decreasing diameter with the inner wall of the suction channel.

[0010] The installation frame edge is provided with a sealing strip, and the installation frame and the sealing strip are clamped by the pipe joint and the suction port back side.

[0011] The suction port back side is provided with a mounting seat for mounting the pipe joint, and the pipe joint is provided with mounting lugs for penetrating screws on both sides, and the mounting seat is provided with screw hole columns corresponding to the mounting lugs.

[0012] The utility model discloses a beneficial effect is: the utility model discloses a floor brush main part's suction port rear installation has the flow stop piece in the suction passage front end, and the flow stop piece extends to form a water retaining wall in the suction port bottom towards the suction passage inside obliquely, and the water retaining wall and the water retaining wall and the water retaining wall between the suction passage inner wall form the water pocket, when the suction device stops working, the sewage and garbage that the suction passage in loses the negative pressure, fails to enter the sewage bucket in time, and the sewage and garbage will flow back to the suction port rear, and the water retaining wall prevents the sewage and garbage from leaking out of the suction port and temporarily stores in the water pocket, and when the suction device restarts, the negative pressure will again suction the sewage and garbage in the water pocket into the sewage bucket along the suction passage. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further explained in connection with the drawings and examples.

[0014] Figure 1 It is the structure schematic drawing of the utility model;

[0015] Figure 2 It is the sectional view of the utility model;

[0016] Figure 3 It is Figure 2 The enlarged view of A in it;

[0017] Figure 4 It is the structure schematic drawing of the floor brush main part and the ground wiping brush split;

[0018] Figure 5 It is the split schematic drawing of floor brush main part;

[0019] Figure 6 It is the further split schematic drawing of floor brush main part;

[0020] Figure 7 It is the structure schematic drawing of flow stop piece. DETAILED DESCRIPTION

[0021] Refer to Figures 1 to 7The application discloses a brush structure of a scrubber for preventing sewage backflow, which comprises a brush main body 1, a brush roll warehouse 2 provided at the front end of the brush main body 1 and used for mounting a ground wiping brush 3, the ground wiping brush 3 is in contact with the ground through the opening of the brush roll warehouse 2, a suction port 4, a water spraying part 6 and a scraping strip 5 are arranged on the back wall surface of the brush roll warehouse 2 and used for spraying water on the ground wiping brush 3, the suction port 4 is connected with a suction device of the scrubber through a suction channel 7 in the brush main body 1, when the scrubber works, the water spraying part 6 sprays water on the surface of the ground wiping brush 3, the ground wiping brush 3 rotates to wipe the ground, meanwhile, the scraping strip 5 scrapes the surface of the ground wiping brush 3, thereby scraping off the dirt and sewage on the ground wiping brush 3, when the suction device is started, a negative pressure is formed in a sewage tank on the main machine, the negative pressure is connected with the suction port 4 through the suction channel 7, the dirt and the sewage scraped off by the scraping strip 5 are stored in the sewage tank through the suction port 4. A flow stopping part 8 is arranged at the rear of the suction port 4 and located at the front end of the suction channel 7, the flow stopping part 8 is located at the bottom of the suction port 4 and extends upward and away from the suction channel 7, thereby forming a water retaining wall 81, a water retaining cavity 82 is formed between the water retaining wall 81 and the inner wall of the suction channel 7, when the suction device stops working and the negative pressure in the suction channel 7 disappears, the sewage and the dirt which cannot be timely stored in the sewage tank will flow back to the rear of the suction port 4, the sewage and the dirt are blocked by the water retaining wall 81 and cannot leak out from the suction port 4, and are temporarily stored in the water retaining cavity 82, when the suction device is restarted, the negative pressure will again suck the sewage and the dirt in the water retaining cavity 82 into the sewage tank through the suction channel 7.

[0022] As the preferred scheme of the utility model, the flow stopping piece 8 includes a mounting frame 83 and a water blocking wall 81, the suction channel 7 is connected with the suction port 4 back side through the pipe joint 9, the mounting frame 83 of the flow stopping piece 8 is clamped between the pipe joint 9 and the suction port 4 back side, and the water blocking wall 81 extends from the mounting frame 83 to the front end of the suction channel 7, that is, the installation and arrangement of the flow stopping piece 8 can be completed while assembling the pipe joint 9. The water blocking wall 81 also has a side wall 811, and the side wall 811 between the two sides gradually narrows from the suction port 4, which can block the backflow of sewage through the side wall in many ways, and on the other hand, the gradually narrowing water blocking wall 81 can also change the size of the air suction path in the suction channel 7, and the gradually narrowing air suction path can accelerate the flow rate of the suction flow, so that the suction force at the suction port 4 is stronger. Further, the bottom wall of the water blocking wall 81 is formed with a plurality of stepped levels 812, each stepped level 812 and the inner wall of the suction channel 7 form a negative pressure suction port with gradually decreasing diameter, and the collision of the suction flow and the plurality of stepped levels 812 forms a wave-shaped suction flow, so that the suction port 4 is not easy to adhere to garbage and hair and other easy-to-stick objects can also smoothly enter the suction channel 7. As the preferred scheme, the mounting frame 83 is provided with a sealing strip, and the mounting frame 83 is clamped with the pipe joint 9 and the suction port 4 back side to achieve the purpose of sealing connection. The suction port 4 back side is provided with a mounting seat 11 for mounting the pipe joint 9, the pipe joint 9 is provided with a mounting lug 91 for penetrating the screw, the mounting seat 11 is provided with a screw hole column 12 corresponding to the mounting lug 91, and the screw is screwed through the mounting lug 91 and the screw hole column 12 to fix the pipe joint 9.

Claims

1. A scrubber brush structure for preventing sewage backflow, comprising a brush body (1), a brush roll housing (2) provided at the front end of the brush body (1) and configured to accommodate a scrubbing brush roll (3), the scrubbing brush roll (3) being in contact with the ground through the opening of the brush roll housing (2), a suction port (4) being provided on the back wall of the brush roll housing (2) and facing the scrubbing brush roll (3), a water spraying component (6) being provided on the back wall of the brush roll housing (2) and configured to spray water to the scrubbing brush roll (3) for wetting, and a scraping strip (5) being provided on the back wall of the brush roll housing (2) and configured to scrape the surface of the scrubbing brush roll (3), the suction port (4) being connected to a suction device of the scrubber through a suction channel (7) in the brush body (1), characterized in that: The suction port (4) is provided with a flow-stopping member (8) at the front end of the suction passage (7), the flow-stopping member (8) is located at the bottom of the suction port (4) and extends upward and obliquely to form a water retaining wall (81), and the water retaining wall (81) and the inner wall of the suction passage (7) form a water retaining cavity (82).

2. The walk behind cleaning machine squeegee structure of claim 1, wherein: The flow-stopping member (8) comprises a mounting frame (83) and the water retaining wall (81), the suction passage (7) is connected with the back side of the suction port (4) through a pipe joint (9), the mounting frame (83) of the flow-stopping member (8) is clamped between the pipe joint (9) and the back side of the suction port (4), and the water retaining wall (81) extends from the mounting frame (83) to the front end of the suction passage (7).

3. The walk behind cleaning machine floor brush structure of claim 1 or 2, wherein: The water retaining wall (81) further has side walls (811) which gradually converge and narrow from the suction port (4).

4. The walk behind cleaning machine floor brush structure of claim 3, wherein: The bottom wall of the water retaining wall (81) is provided with multiple steps (812), and each step (812) and the inner wall of the suction passage (7) form a negative pressure suction port with a gradually decreasing diameter.

5. The walk behind cleaning machine floor brush structure of claim 2, wherein: The edge of the mounting frame (83) is provided with a sealing strip, and the mounting frame (83) is clamped between the pipe joint (9) and the back side of the suction port (4).

6. The walk behind cleaning machine floor brush structure of claim 2, wherein: The back side of the suction port (4) is provided with a mounting seat (11) for mounting the pipe joint (9), the pipe joint (9) is provided with mounting lugs (91) for penetrating screws on both sides, and the mounting seat (11) is provided with screw hole columns (12) corresponding to the mounting lugs (91).

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