A floor brush assembly for a cleaning machine and the cleaning machine
By introducing water distribution strips and squeegee strips into the floor brush assembly of the cleaning machine, the problem of water residue at the front and rear ends of the roller brush is solved, resulting in more efficient cleaning and increased equipment durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO BEIKAI COMMODITY MFG CO LTD
- Filing Date
- 2024-08-12
- Publication Date
- 2026-05-26
AI Technical Summary
Existing cleaning machine roller brushes have a large amount of water residue at both ends, the cloth roller brush with strong interference squeegee has a high load, and the rubber strip roller brush cannot effectively suppress the amount of water in the suction chamber.
The design incorporates a water distribution strip and a scraper strip. The water distribution strip reduces water residue at the front of the roller brush through its bifurcated strips and water control grooves, while the scraper strip removes water from the rear of the roller brush during its rotation. Combined with the exhaust channel, this achieves effective water removal.
It effectively reduces water residue at the front and rear ends of the roller brush, improving the cleaning effect of the cleaning machine and extending the service life of the equipment.
Smart Images
Figure CN119326330B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of cleaning equipment technology, specifically to a floor brush assembly for a cleaning machine and the cleaning machine itself. Background Technology
[0002] As people's living standards continue to improve, cleaning machines such as floor scrubbers, vacuum cleaners, and sweepers have been widely used in daily life. When it is necessary to clean the floor, users can hold the cleaning machine and clean the floor by sweeping or mopping, thereby achieving the purpose of floor cleaning.
[0003] Most cleaning machine products on the market use a roller brush to sweep debris into the suction chamber, and then a fan sucks the debris into a collection box inside, thus completing the floor cleaning function. Roller brushes are mainly divided into cloth roller brushes and rubber strip roller brushes. For details, please refer to the applicant's earlier patent applications CN202221612118.6 "Brush Head Module for Cleaning Machine and Cleaning Machine" and CN202221624378.5 "Cleaning Module for Cleaning Machine and Cleaning Machine".
[0004] In existing technologies, products capable of water recycling are often cloth roller brushes. These typically reduce water retention in the suction chamber by using a metal squeegee and a strong interference fit between the roller brush and the squeegee. However, the strong interference fit of the cloth roller brush results in a heavy load on the roller brush, placing high demands on the transmission system and the performance of the motor itself. Furthermore, using rubber strips as the surface material of the roller brush cannot effectively suppress water retention in the suction chamber, resulting in a large amount of residual water on the ground at the front and rear ends of the roller brush when the equipment is turned off. Summary of the Invention
[0005] The first technical problem to be solved by the present invention is to provide a floor brush assembly that can reduce water residue at the front end of the roller brush, in light of the current state of the prior art.
[0006] The second technical problem to be solved by the present invention is to provide a floor brush assembly that can reduce water residue at the rear end of the roller brush.
[0007] The third technical problem to be solved by the present invention is to provide a cleaning machine that uses the above-mentioned floor brush assembly.
[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a floor brush assembly for a cleaning machine, comprising:
[0009] The housing has a downward-opening dust suction chamber and a water supply channel, the outlet of which is connected to the dust suction chamber; and
[0010] A roller brush is rotatably mounted inside the suction chamber and its axis of rotation extends laterally. The periphery has brush strips for cleaning the surface to be cleaned, and the brush strips are flexible.
[0011] The feature is that it further includes a water distribution strip, which is arranged laterally on the front side of the dust collection chamber and close to the surface to be cleaned. The water distribution strip branches out to both sides along the front end of the roller brush rotation direction to form a first branch and a second branch. The fork between the first branch and the second branch is called a water control groove. The first branch can rub against the end of the corresponding brush bar during the rotation of the roller brush, so that the water droplets located at the end of the brush bar are diffused and stored in the water control groove and finally carried away by the brush bar.
[0012] To ensure even water distribution and facilitate the removal of water from the water control tank, the first forked strip is interference-fitted with the brush strip on the roller brush.
[0013] To prevent water from accumulating into droplets at the end of the first forked strip, the surface of the first forked strip facing the roller brush gradually approaches the roller brush along the rotation direction of the roller brush.
[0014] To facilitate the brush bar crossing the first forked bar, the end face of the first forked bar is curved.
[0015] To prevent water from leaking from both ends of the water control tank, the water control tank is closed at both ends in the transverse direction.
[0016] To facilitate drainage, the housing also has an exhaust duct, the inlet of which connects to the dust collection chamber.
[0017] To further address the second technical problem mentioned above, a wiper strip is also included. This wiper strip is arranged laterally on the rear side of the dust collection chamber and located on the top side of the exhaust duct inlet. The end of the wiper strip can rub against the end of the brush strip during the rotation of the roller brush.
[0018] To ensure effective wiping, the wiping strip is interference-fitted with the brush strip on the roller brush.
[0019] To ensure effective wiping, the wiping strip is substantially perpendicular to the roller brush.
[0020] In order to scrape away water from the surface to be cleaned when the cleaning machine moves backward, a front scraper is also included. The front scraper is arranged laterally on the front side of the suction chamber and can fit against the surface to be cleaned during the retraction of the cleaning machine.
[0021] In order to scrape away water from the surface to be cleaned as the cleaning machine moves forward, a rear scraper is also included. The rear scraper is arranged laterally on the rear side of the suction chamber and can fit against the surface to be cleaned during the movement of the cleaning machine.
[0022] The technical solution adopted by the present invention to solve the third technical problem mentioned above is: a cleaning machine using the above-mentioned floor brush component.
[0023] Compared with the prior art, the advantages of the present invention are as follows:
[0024] (1) The water distribution strips, which are forked into first and second forked strips at the front of the dust collection chamber, are arranged horizontally near the surface to be cleaned. The first forked strip can rub against the end of the corresponding brush strip during the rotation of the roller brush, so that the water droplets at the end of the brush strip are diffused and stored in the water control groove between the first and second forked strips and finally carried away by the brush strip, which can reduce the water residue at the front of the roller brush.
[0025] (2) The wiper strip is arranged horizontally on the back side of the dust collection chamber, at the top side of the exhaust duct inlet. The end of the wiper strip can rub against the end of the brush strip during the rotation of the roller brush. In this way, most of the water is scraped off by the wiper strip and carried away by the exhaust duct, which can reduce the water residue at the rear end of the roller brush. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the floor brush assembly in an embodiment of the cleaning machine of the present invention;
[0027] Figure 2 for Figure 1 3D exploded view of the middle shell and the roller brush;
[0028] Figure 3 for Figure 1 A longitudinal sectional view;
[0029] Figure 4 for Figure 3 A three-dimensional structural diagram of a uniform water strip. Detailed Implementation
[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0031] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.
[0032] like Figures 1 to 4The diagram shows a preferred embodiment of the cleaning machine with a floor brush assembly according to the present invention. The cleaning machine can be a floor scrubber, vacuum cleaner, or sweeper, etc. This embodiment uses a floor scrubber as an example for explanation. The floor brush assembly includes a housing 1, a roller brush 2, a water distribution strip 3, a squeegee strip 4, a front squeegee strip 5, and a rear squeegee strip 6.
[0033] The housing 1 has a dust suction chamber 11 with its opening facing downward at the front; a water supply channel 12 is located at the top of the housing 1, and the outlet of the water supply channel 12 is connected to the dust suction chamber 11; and an exhaust channel 13 is located at the rear of the housing 1, and the inlet of the exhaust channel 13 is connected to the dust suction chamber 11.
[0034] The roller brush 2 is located inside the suction chamber 11 and is rotatably connected to the housing 1, with its rotation axis extending laterally. Multiple brush strips 21, spaced circumferentially, are arranged around the periphery of the roller brush 2 for cleaning the surface to be cleaned. In this embodiment, the brush strips 21 are made of silicone and are flexible.
[0035] The water distribution strip 3 is arranged horizontally on the front side of the suction chamber 11 and close to the surface to be cleaned; the length of the water distribution strip 3 in the axial direction of the roller brush 2 is greater than or equal to the length of the roller brush 2, and its material can be soft, hard or a combination of soft and hard; the vertical distance between the lowest point of the water distribution strip 3 and the surface to be cleaned is less than 1.5 times the distance between the roller brush 2 and the inlet of the exhaust channel 13.
[0036] In this embodiment, the water distribution strip 3 branches out to both sides at the front end (i.e., the bottom end of the water distribution strip 3) along the rotation direction of the roller brush 2, forming a first branch 31 facing inward and a second branch 32 facing outward; the surface of the first branch 31 facing the roller brush 2 gradually approaches the roller brush 2 along the rotation direction of the roller brush 2 and is press-fitted with the brush strip 21 on the roller brush 2, and the end face of the first branch 31 is an arc surface; the fork between the first branch 31 and the second branch 32 is called the water control groove 30, and the water control groove 30 is closed at both ends in the transverse direction. The first forked strip 31 can rub against the end of the corresponding brush strip 21 during the rotation of the roller brush 2, so that the water droplets at the end of the brush strip 21 are diffused and stored in the water control groove 30 and eventually carried away by the brush strip 21. The function of the water control groove 30 is to prevent water from accumulating into water droplets at the bottom of the water distribution strip 3, and to help the water at the bottom of the water distribution strip 3 follow the roller brush 2 again, so as to prevent water droplets from accumulating at the bottom of the water distribution strip 3 and dripping when the machine is turned off, thus forming obvious water residue.
[0037] The wiper strip 4 is arranged horizontally on the rear side of the suction chamber 11 and located on the top side of the inlet of the exhaust duct 13; the length of the wiper strip 4 in the axial direction of the roller brush 2 is greater than or equal to the length of the roller brush 2, and its material can be soft, hard or a combination of soft and hard; the distance between the wiper strip 4 and the top wall of the inlet of the exhaust duct 13 is less than twice the thickness of the wiper strip 4.
[0038] In this embodiment, the wiper strip 4 is basically perpendicular to the roller brush 2 and is interference-fitted with the brush strip 21 on the roller brush 2. The end of the wiper strip 4 can rub against the end of the brush strip 21 during the rotation of the roller brush 2, thereby scraping off the water on the surface of the roller brush 2.
[0039] The front scraper 5 is arranged horizontally on the front side of the suction chamber 11, and can fit into the surface to be cleaned during the retraction of the cleaning machine, thereby scraping away the water on the surface to be cleaned when the cleaning machine retracts.
[0040] The rear scraper 6 is arranged laterally on the rear side of the suction chamber 11, and can fit into the surface to be cleaned during the forward movement of the cleaning machine, thereby scraping away the water on the surface to be cleaned when the cleaning machine moves forward.
[0041] The working principle of this embodiment is as follows: During the operation of the cleaning machine, the water released from the water supply channel 12 will wet the roller brush 2. During the rotation of the roller brush 2, due to the centrifugal force, most of the water is located on the outer periphery of the roller brush 2 (i.e., the end of the brush strip 21). From the perspective of the same drop of water at different times, after the water enters the dust suction chamber 11, it will rotate counterclockwise with the roller brush 2 on the outer periphery of the roller brush 2. Then, when it passes the water distribution strip 3, it will stop slightly and spread because it comes into contact with the first branch strip 31. However, it will still turn over the first branch strip 31 and continue to move. After entering the water control groove 30 at the bottom of the water distribution strip 3, it will spread significantly and will not form water droplets. Instead, it will be carried away relatively evenly by the brush strip 21. Then, it will reach the surface to be cleaned and be washed. Then, it will be carried by the brush strip 21 to continue to move towards the inlet of the exhaust channel 13. When it passes the inlet of the exhaust channel 13, some water will be directly carried away by the exhaust channel 13, and some water will continue to move upward with the brush strip 21 to the squeegee strip 4. At this time, most of the water will be scraped down by the squeegee strip 4 and carried away by the exhaust channel 13.
Claims
1. A floor brush assembly for a cleaning machine, comprising: The housing (1) has a downward-opening suction chamber (11) and a water supply channel (12), the outlet of which is connected to the suction chamber (11); and A roller brush (2) is rotatably mounted in the suction chamber (11) and its axis of rotation extends laterally. The periphery has a brush strip (21) for cleaning the surface to be cleaned. The brush strip (21) is flexible. Its features are: It also includes a water distribution strip (3), which is arranged laterally on the front side of the suction chamber (11) and close to the surface to be cleaned. The water distribution strip (3) branches out to both sides along the front end of the roller brush (2) to form a first branch (31) and a second branch (32). The fork between the first branch (31) and the second branch (32) is called a water control groove (30). The first branch (31) and the brush strip (21) on the roller brush (2) are connected. The first forked bar (31) has an interference fit, and the surface of the first forked bar (31) facing the roller brush (2) gradually approaches the roller brush (2) along the rotation direction of the roller brush (2). The water control groove (30) is closed at both ends in the transverse direction. The first forked bar (31) can rub against the end of the corresponding brush bar (21) during the rotation of the roller brush (2), so that the water droplets located at the end of the brush bar (21) are diffused and stored in the water control groove (30) and finally carried away by the brush bar (21).
2. The floor brush assembly according to claim 1, characterized in that: The end face of the first forked bar (31) is an arc surface.
3. The floor brush assembly according to claim 1, characterized in that: The housing (1) also has an exhaust duct (13) whose inlet is connected to the dust collection chamber (11).
4. The floor brush assembly according to claim 3, characterized in that: It also includes a wiper strip (4), which is arranged laterally on the rear side of the suction chamber (11) and located on the top side of the inlet of the exhaust duct (13). The end of the wiper strip (4) can rub against the end of the brush strip (21) during the rotation of the roller brush (2).
5. The floor brush assembly according to claim 4, characterized in that: The wiper blade (4) is interference-fitted with the brush strip (21) on the roller brush (2).
6. The floor brush assembly according to claim 4, characterized in that: The wiper strip (4) is substantially perpendicular to the roller brush (2).
7. The floor brush assembly according to any one of claims 1 to 6, characterized in that: It also includes a front scraper (5), which is arranged laterally on the front side of the suction chamber (11) and can fit against the surface to be cleaned during the retraction of the cleaning machine.
8. The floor brush assembly according to any one of claims 1 to 6, characterized in that: It also includes a rear scraper (6), which is arranged laterally on the rear side of the suction chamber (11) and can fit against the surface to be cleaned during the forward movement of the cleaning machine.
9. A cleaning machine that uses the floor brush assembly as described in any one of claims 1 to 8.