Floor brush mechanism and cleaning device

Abstract

The present application belongs to the technical field of cleaning equipment, and discloses a floor brush mechanism and a cleaning equipment. The floor brush mechanism comprises a shell, a rolling brush and a nozzle assembly. The shell is provided with a liquid supply channel inside. The bottom surface of the shell is provided with a containing groove. The rolling brush is rotationally arranged in the containing groove. The nozzle assembly is arranged in the containing groove and is in communication with the liquid supply channel. A water blocking part is arranged in the containing groove. The water blocking part is located above the rolling brush. The water blocking part is used for changing the flow direction of the liquid sprayed by the nozzle assembly. The liquid provided by the nozzle assembly can be sprayed onto the water blocking part first. After being dispersed and mixed on the water blocking part, the liquid can flow evenly along the surface of the water blocking part to the rolling brush, so that the cleaning liquid can uniformly reach the surface of the rolling brush, thereby improving the cleaning effect on the surface to be cleaned.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more particularly to a floor brush mechanism and cleaning equipment. Background Technology

[0002] To meet user needs, a nozzle assembly has been added to the floor brush mechanism to spray liquid onto the roller brush surface to improve cleaning performance.

[0003] In existing floor brush mechanisms, the nozzle assembly only sprays at two points, and the liquid is sprayed directly onto the roller brush, resulting in uneven liquid distribution on the roller brush surface and affecting the cleaning effect of the floor brush mechanism.

[0004] Therefore, there is an urgent need for a floor brush mechanism and cleaning equipment to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a floor brush mechanism and cleaning equipment to solve the problem of uneven liquid distribution caused by the nozzle assembly directly spraying onto the roller brush in the prior art.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A floor brush mechanism, comprising:

[0008] The housing has a liquid supply channel inside and a receiving groove on the bottom surface of the housing.

[0009] A roller brush is rotatably positioned within the receiving groove;

[0010] A nozzle assembly is disposed within the receiving groove and communicates with the liquid supply channel;

[0011] A water-blocking part is provided in the receiving tank, and the water-blocking part is located above the roller brush. The water-blocking part is used to change the flow direction of the liquid sprayed by the nozzle assembly.

[0012] As a preferred embodiment of the above-mentioned floor brush mechanism, a baffle plate is provided in the receiving groove, the water blocking part is located on the baffle plate, the baffle plate extends along the axial direction of the roller brush, and the nozzle assembly includes a plurality of nozzles arranged at intervals along the axial direction of the roller brush, the nozzles being disposed toward the baffle plate.

[0013] As a preferred embodiment of the above-mentioned floor brush mechanism, the distance between the nozzle outlet of the nozzle assembly and the surface of the water-blocking part facing the nozzle assembly is 10mm-20mm.

[0014] As a preferred embodiment of the above-mentioned floor brush mechanism, the distance between the nozzle outlet of the nozzle assembly and the surface of the water-blocking part facing the nozzle assembly is 14mm.

[0015] As a preferred embodiment of the aforementioned floor brush mechanism, the surface of the water-blocking portion facing the nozzle assembly is inclined from top to bottom in a direction away from the nozzle assembly.

[0016] As a preferred embodiment of the aforementioned floor brush mechanism, an interference portion is provided in the receiving groove. The interference portion is located downstream of the water-blocking portion along the spray direction of the nozzle assembly, and the interference portion abuts against the roller brush.

[0017] As a preferred embodiment of the aforementioned floor brush mechanism, the interference portion is made of an elastic material.

[0018] As a preferred embodiment of the above-mentioned floor brush mechanism, the interference fit between the interference portion and the roller brush is 3-4 mm.

[0019] As a preferred embodiment of the above-mentioned floor brush mechanism, a front scraper is provided in the receiving groove, and part of the front scraper forms the interference part. The side surface of the front scraper facing the nozzle assembly is flush with and connected to the side surface of the water-blocking part facing the nozzle assembly to form a common plane.

[0020] As a preferred embodiment of the aforementioned floor brush mechanism, the side surface of the front scraper facing the nozzle assembly forms a preset angle with the surface to be cleaned, the preset angle being 50°-90°.

[0021] As a preferred embodiment of the aforementioned floor brush mechanism, the preset included angle is 78°.

[0022] As a preferred embodiment of the aforementioned floor brush mechanism, a plurality of first guide ribs are provided on the common plane, the first guide ribs extending from top to bottom, and the plurality of first guide ribs are arranged along the axial direction of the roller brush.

[0023] As a preferred embodiment of the aforementioned floor brush mechanism, the height of the first guide rib gradually increases from top to bottom.

[0024] As a preferred embodiment of the aforementioned floor brush mechanism, a second guide rib is provided on the common plane, and the second guide rib extends along the axial direction of the roller brush.

[0025] As a preferred embodiment of the above-mentioned floor brush mechanism, a rear scraper is provided in the receiving groove, and the rear scraper is located on the rear side of the roller brush and abuts against the roller brush.

[0026] As a preferred embodiment of the aforementioned floor brush mechanism, the rear scraper is made of metal.

[0027] As a preferred embodiment of the aforementioned floor brush mechanism, the interference fit between the rear scraper and the roller brush is 3-4 mm.

[0028] As a preferred embodiment of the aforementioned floor brush mechanism, the nozzle assembly includes:

[0029] The main body has a cavity formed inside it. An inlet is provided on one side surface of the main body, and a plurality of outlets arranged along a first direction are provided on the opposite side surface of the main body.

[0030] A separator is disposed within the cavity and located between the inlet and the outlet. The separator is used to divide the cavity into a front cavity communicating with the inlet and a rear cavity communicating with the outlet. The separator is provided with a plurality of communication ports along a first direction, and the communication ports connect the front cavity and the rear cavity.

[0031] As a preferred embodiment of the aforementioned floor brush mechanism, the circulation area of ​​the inlet is greater than the sum of the circulation areas of the multiple outlets.

[0032] As a preferred embodiment of the aforementioned floor brush mechanism, the circulation area of ​​the inlet is 3.5-4.5 times the sum of the circulation areas of the multiple outlets.

[0033] As a preferred embodiment of the aforementioned floor brush mechanism, the sum of the circulation areas of the plurality of connecting ports is less than the circulation area of ​​the inlet, but greater than the sum of the circulation areas of the plurality of outlets.

[0034] As a preferred embodiment of the aforementioned floor brush mechanism, the inlet's flow area is 4.5mm. 2 -10.5mm 2 The sum of the flow areas of the multiple connecting ports is 3mm. 2 -7mm 2 The sum of the circulation areas of the multiple outlets is 1 mm. 2 -3mm 2 .

[0035] As a preferred embodiment of the aforementioned floor brush mechanism, the inlet, the connecting port, and the outlet are staggered.

[0036] As a preferred embodiment of the aforementioned floor brush mechanism, the plurality of connecting ports and the plurality of outlets are arranged alternately along a first direction.

[0037] As a preferred embodiment of the aforementioned floor brush mechanism, the main body includes an upper cover and a lower cover that are disposed opposite to each other and sealed together, the inlet is disposed on the upper cover, and the outlet is disposed on the lower cover.

[0038] As a preferred embodiment of the above-mentioned floor brush mechanism, one of the upper cover and the lower cover has a protruding ridge on its contact end surface, and the other has a groove on its contact end surface, and the protruding ridge can be inserted into the groove.

[0039] As a preferred embodiment of the aforementioned floor brush mechanism, the separator is disposed between the upper cover and the lower cover, the front cavity is located between the separator and the upper cover, and the rear cavity is located between the separator and the lower cover.

[0040] As a preferred embodiment of the aforementioned floor brush mechanism, the separator includes a partition and a side plate disposed around the partition. The partition abuts against the contact end surface of the lower cover, and the side plate abuts against the inner wall of the upper cover.

[0041] A cleaning device including the aforementioned floor brush mechanism.

[0042] As a preferred embodiment of the above-mentioned cleaning equipment, the cleaning equipment further includes:

[0043] A sensor, the sensor being used to sense the direction of movement of the floor brush mechanism;

[0044] The nozzle assembly is electrically connected to the sensor and is configured to spray liquid when the floor brush mechanism moves toward the front of the roller brush, and to spray liquid at a preset flow rate or turn off spraying when the floor brush mechanism moves toward the rear of the roller brush.

[0045] The beneficial effects of this invention are:

[0046] In the floor brush mechanism provided by the present invention, the liquid provided by the nozzle assembly can be sprayed onto the water-blocking part first, and after being dispersed and mixed on the water-blocking part, it flows evenly along the surface of the water-blocking part onto the roller brush, ensuring that the cleaning liquid can evenly reach the surface of the roller brush, thereby improving the cleaning effect on the surface to be cleaned.

[0047] A first guide rib is provided on the common plane, and the liquid sprayed onto the baffle can flow downward along the first guide rib, restricting the free flow direction of the liquid in each area of ​​the water-blocking part, so as to make the liquid more evenly dispersed.

[0048] A second guide rib is set on the common plane. When the liquid flows along the common plane to the second guide rib, the liquid can change its flow direction to adhere to the surface of the second guide rib. This is conducive to the liquid flowing along the common plane, thereby making the liquid distribution uniform and improving the cleaning effect of the roller brush.

[0049] The cleaning equipment provided by this invention uses the above-mentioned floor brush mechanism, which has a good cleaning effect. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the floor brush mechanism provided in Embodiment 1 of the present invention;

[0051] Figure 2 This is a cross-sectional view of the floor brush mechanism provided in Embodiment 1 of the present invention;

[0052] Figure 3 This is a cross-sectional view of a portion of the structure of the floor brush mechanism provided in Embodiment 1 of the present invention. Figure 1 ;

[0053] Figure 4 This is a cross-sectional view of a portion of the structure of the floor brush mechanism provided in Embodiment 1 of the present invention. Figure 2 ;

[0054] Figure 5 This is a schematic diagram of the nozzle assembly provided in Embodiment 1 of the present invention;

[0055] Figure 6 This is a cross-sectional view of the nozzle assembly provided in Embodiment 1 of the present invention;

[0056] Figure 7 This is a partial structural diagram of the lower cover provided in Embodiment 1 of the present invention;

[0057] Figure 8 This is a schematic diagram of the structure of the housing, baffle and front scraper provided in Embodiment 2 of the present invention;

[0058] Figure 9 This is a cross-sectional view of the junction of the housing, the baffle, and the front scraper provided in Embodiment 3 of the present invention.

[0059] In the picture:

[0060] 10. Shell; 11. Receiving tank; 12. Liquid supply channel; 20. Roller brush; 30. Adapter assembly; 31. Fluid channel; 40. Baffle plate; 41. First guide rib; 50. Nozzle assembly; 51. Top cover; 511. Inlet connector; 512. Raised rib; 513. Upper tank side plate; 52. Lower cover; 521. Nozzle; 522. Lower tank side plate; 5221. Outer annular plate; 5222. Inner annular plate; 523. Lower tank bottom plate; 53. Separator; 61. Main roller; 62. Auxiliary roller; 70. Front scraper; 71. Working surface; 72. Second guide rib; 80. Rear scraper; 81. Common plane. Detailed Implementation

[0061] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0062] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0065] Example 1

[0066] This embodiment provides a floor brush mechanism that can be used in cleaning equipment. The floor brush mechanism is capable of moving on the surface to be cleaned and performing cleaning.

[0067] like Figure 1 and Figure 2 As shown, the floor brush mechanism includes a housing 10, a roller brush 20, and an adapter assembly 30. A receiving groove 11 is provided on the bottom surface of the housing 10, and the roller brush 20 is rotatably disposed within the receiving groove 11. A fluid channel 31 is formed within the adapter assembly 30. One end of the adapter assembly 30 extends into the housing 10 and communicates with the receiving groove 11 through the fluid channel 31, while the other end extends out of the housing 10 for connection to the main body of the cleaning equipment.

[0068] When the floor brush mechanism is working, it moves along the surface to be cleaned. During the movement, the roller brush 20 rotates relative to the housing 10 to sweep away dust, debris, sewage and other dirt on the surface to be cleaned. At the same time, a negative pressure is formed in the fluid channel 31, and dust, debris, sewage and other dirt enter the fluid channel 31 with the airflow to achieve cleaning of the surface to be cleaned.

[0069] To facilitate the smooth entry of dust, debris, sewage, and other contaminants into the fluid channel 31, a receiving groove 11 is provided on the front bottom surface of the housing 10. A connecting port is provided on the rear side wall of the receiving groove 11, which communicates with the fluid channel 31. When the roller brush 20 rotates, it drives the housing 10 to move forward, so that the dust, debris, sewage, and other contaminants on the surface to be cleaned can be pushed backward by the roller brush 20, thereby smoothly entering the fluid channel 31 through the connecting port.

[0070] To reduce the friction generated when the housing 10 moves relative to the surface to be cleaned, the floor brush mechanism also includes a wheel assembly. The wheel assembly is disposed on the housing 10 and can roll into contact with the surface to be cleaned to reduce friction.

[0071] In this embodiment, the walking wheel assembly includes a main roller 61 rotatably disposed at the rear end of the housing 10 and an auxiliary roller 62 rotatably disposed on the bottom surface of the housing 10. The auxiliary roller 62 is disposed close to the roller brush 20 so that the cooperation between the main roller 61 and the auxiliary roller 62 avoids the bottom surface of the housing 10 from directly contacting the surface to be cleaned, thereby reducing friction.

[0072] To further improve the cleaning effect of the floor brush mechanism on the surface to be cleaned, the floor brush mechanism also includes a nozzle assembly 50. Specifically, a liquid supply channel 12 is provided inside the housing 10, and the nozzle assembly 50 is disposed inside the housing 10 and communicates with the liquid supply channel 12. The liquid supply channel 12 is used to supply liquid to the nozzle assembly 50, which can spray liquid into the receiving tank 11, so that the liquid acts on the surface to be cleaned through the roller brush 20, thereby improving the cleaning effect on the surface to be cleaned. The sprayed liquid can be water, a cleaning agent, or a mixture of water and a cleaning agent.

[0073] In existing floor brush mechanisms, the nozzle assembly 50 sprays liquid only through one or more fixed positions, and the sprayed liquid acts directly on the roller brush 20, resulting in uneven liquid distribution on the roller brush 20, which affects the cleaning effect.

[0074] To solve the above problems, in this embodiment, as follows: Figure 2 and Figure 3As shown, a water-blocking part is provided in the receiving tank 11. The water-blocking part is used to change the flow direction of the liquid sprayed from the nozzle assembly 50. Specifically, the water-blocking part blocks the liquid sprayed from the nozzle assembly 50 and causes the liquid to flow along the surface of the water-blocking part and fall onto the roller brush 20. Specifically, a baffle plate 40 is provided in the receiving tank 11. The baffle plate 40 is located above the roller brush 20 and is arranged opposite to the nozzle assembly 50. The surface of the baffle plate 40 facing the nozzle assembly 50 is the water-blocking part, so that the baffle plate 40 can intercept the liquid sprayed from the nozzle assembly 50 and cause the liquid to flow along the surface of the baffle plate 40 and fall onto the roller brush 20. By setting the baffle plate 40, the liquid provided by the nozzle assembly 50 can be sprayed onto the baffle plate 40 first. After being dispersed and mixed on the baffle plate 40, it flows evenly along the surface of the baffle plate 40 onto the roller brush 20, ensuring that the liquid can evenly reach the surface of the roller brush 20, thereby improving the cleaning effect on the surface to be cleaned.

[0075] Specifically, the baffle plate 40 extends along the axial direction of the roller brush 20, and the nozzle assembly 50 includes a plurality of nozzles 521 spaced apart along the axial direction of the roller brush 20, with the openings of the nozzles 521 facing the baffle plate 40. This arrangement increases the number of spray points, ensuring that liquid can be sprayed onto all areas of the baffle plate 40 along the axial direction of the roller brush 20. After the liquid sprayed from each nozzle 521 reaches the baffle plate 40, it flows on the surface of the baffle plate 40 to achieve uniform dispersion, thereby ensuring that the liquid flowing down from the baffle plate 40 is evenly distributed along the axial direction of the roller brush 20, thus improving the cleaning effect.

[0076] Optionally, the baffle 40 is inclined on the side facing the nozzle assembly 50, with the baffle 40 located above the front side of the roller brush 20 and the nozzle assembly 50 located behind the baffle 40, to facilitate communication between the nozzle assembly 50 and the liquid supply channel 12 within the housing 10. The baffle 40 is inclined from top to bottom away from the nozzle assembly 50, that is, the bottom end of the baffle 40 is inclined towards the front side of the roller brush 20.

[0077] To ensure that the liquid sprayed by the nozzle assembly 50 reaches and flows along the baffle plate 40, the distance between the nozzle assembly 50 and the baffle plate 40 should not be too large or too small. When the distance between the nozzle assembly 50 and the baffle plate 40 is too large, the liquid sprayed by the nozzle assembly 50 will fall directly onto the roller brush 20 under the action of gravity, making it difficult to reach the baffle plate 40. When the distance between the nozzle assembly 50 and the baffle plate 40 is too small, the liquid sprayed onto the baffle plate 40 is likely to be reflected, resulting in only a portion of the liquid being guided by the baffle plate 40 to fall onto the roller brush 20, thus affecting the uniformity of liquid dispersion on the roller brush 20.

[0078] Optionally, the distance between the outlet of the nozzle 521 in the nozzle assembly 50 and the side surface of the baffle 40 facing the nozzle 521 is 10mm-20mm. For example, the distance between the outlet of the nozzle 521 and the side surface of the baffle 40 facing the nozzle 521 is 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, or 19mm. In this embodiment, the distance between the outlet of the nozzle 521 and the side surface of the baffle 40 facing the nozzle 521 is 14mm. This distance ensures that the liquid sprayed from the nozzle assembly 50 flows downwards along the baffle 40, resulting in better uniformity of the liquid falling onto the roller brush 20.

[0079] When the nozzle assembly 50 sprays liquid onto the baffle 40, the liquid falls onto the roller brush 20 via the baffle 40. The liquid can freely penetrate the surface of the roller brush 20, resulting in uneven penetration and poor cleaning effect.

[0080] To solve the above problems, an interference part is also provided in the receiving tank 11. The interference part is located downstream of the water blocking part along the spray direction of the nozzle assembly 50. The interference part can abut against the roller brush 20 and can scrape the liquid that is guided from the water blocking part to the surface of the roller brush 20 evenly.

[0081] When cleaning the surface to be cleaned, the roller brush 20 has a better cleaning effect when the surface of the roller brush 20 has appropriate humidity. Too much humidity will cause the surface to be cleaned to be slippery and create a safety hazard; too little humidity will not achieve a good cleaning effect.

[0082] In the existing technology, the interference fit between the scraper and the roller brush 20 is generally more than 5mm, which results in a large resistance between the scraper and the roller brush 20, a large energy consumption of the floor brush mechanism, a lot of wasted electricity, and the excessive amount of scraping and squeezing of the roller brush 20, resulting in low surface humidity and affecting the cleaning effect.

[0083] To reduce the resistance of the interference part to the roller brush 20 and thus reduce energy consumption, while ensuring that the surface humidity of the roller brush 20 is appropriate, in this embodiment, the interference part can be made of an elastic material, so that the interference part has a certain elasticity and can deform during the contact with the roller brush 20, thereby reducing the resistance applied to the roller brush 20. At the same time, it can also take into account the influence on the surface humidity of the roller brush 20, so that the surface of the roller brush 20 has appropriate humidity when it comes into contact with the surface to be cleaned, thereby improving the cleaning effect.

[0084] In this embodiment, the interference fit between the interference part and the roller brush 20 is 3mm-4mm to reduce the resistance of the interference part to the roller brush 20, reduce the energy loss caused by driving the roller brush 20 to rotate, and reduce the energy consumption of the floor brush mechanism. For example, the interference fit between the interference part and the roller brush 20 can be 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, or 3.9mm.

[0085] In this embodiment, the interference between the interference portion and the roller brush 20 is 3.5 mm.

[0086] Specifically, a front scraper 70 is provided in the receiving tank 11, and the baffle 40 and the front scraper 70 are arranged along the spray direction of the nozzle 521. The front scraper 70 is located on the side of the baffle 40 away from the nozzle 521, and part of the front scraper 70 forms an interference part for contacting the roller brush 20. This scrapes off excess liquid from the roller brush 20 and pushes the excess liquid to coat the surface of the roller brush 20. By providing the front scraper 70, the front scraper 70 and the roller brush 20 rotate relative to each other. During the rotation of the roller brush 20, the liquid can be scraped onto the surface of the roller brush 20, increasing the area of ​​the roller brush 20 covered with liquid. This facilitates uniform penetration of the liquid onto the roller brush 20, thereby improving the cleaning effect.

[0087] Optionally, the distance between the nozzle assembly 50's outlet and the front scraper 70 is 5mm-50mm. Within this range, the distance between the front scraper 70 and the outlet is not too close, so that the liquid has a certain stroke after being sprayed out by the nozzle assembly 50, so that the liquid is evenly dispersed and the liquid is prevented from reflecting off the surface of the front scraper 70; the distance between the front scraper 70 and the outlet is also not too far, so that the front scraper 70 can promptly scrape the liquid on the roller brush 20. For example, the distance between the nozzle assembly 50's outlet and the front scraper 70 can be 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, or 45mm.

[0088] To ensure that the liquid passing through the baffle 40 is scraped and spread onto the surface of the roller brush 20 under the action of the front scraper 70, such as Figure 3 and Figure 4 As shown, the surface of the front scraper 70 facing the nozzle assembly 50 is flush with and connected to the surface of the baffle 40 facing the nozzle assembly 50. That is, the surface of the baffle 40 facing the nozzle assembly 50 and the surface of the front scraper 70 facing the nozzle assembly 50 can be joined to form a single surface. After the liquid flows on the baffle 40, it can flow directly onto the front scraper 70, and then fall directly onto the surface of the roller brush 20 via the front scraper 70.

[0089] Understandably, the front scraper 70 is located at the upper front end of the roller brush 20 so that the surface of the roller brush 20 after being scraped by the front scraper 70 comes into contact with the surface to be cleaned for cleaning.

[0090] In this embodiment, the surface of the front scraper 70 facing the nozzle assembly 50 contacts the roller brush 20. For ease of explanation, this surface is defined as the working surface 71. To further reduce the resistance of the front scraper 70 to the roller brush 20, such as... Figure 7 As shown, the working surface 71 on the front scraper 70 forms a preset angle B with the surface to be cleaned, which is 50°-90°. Through multiple experiments, it was found that when the preset angle B is greater than 90°, the resistance of the front scraper 70 to the roller brush 20 will be greater. Because the surface of the baffle 40 facing the nozzle assembly 50 is flush with the working surface 71, when the preset angle B is less than 50°, the liquid on the baffle 40 will not be easily distributed to the roller brush 20, affecting the uniformity of liquid distribution on the roller brush 20.

[0091] Optionally, the preset included angle B can be 55°, 60°, 65°, 70°, 75°, 80°, or 85°. In this embodiment, the preset angle B is 78°.

[0092] Furthermore, the axis of the roller brush 20 is not in the plane of the working surface 71 of the front scraper 70, so as to reduce the resistance of the front scraper 70 to the roller brush 20, control the humidity of the roller brush 20 surface after the front scraper 70 has scraped, thereby reducing energy consumption and ensuring cleaning effect.

[0093] Optionally, the line connecting the contact point between the front scraper 70 and the roller brush 20 along the radial direction of the roller brush 20 and the axis of the roller brush 20 is defined as reference line a, and the working surface 71 of the front scraper 70 is set at an acute angle A with reference line a. With this setting, the resistance of the front scraper 70 to the roller brush 20 can be further controlled, so that the resistance of the front scraper to the roller brush 20 and the dryness and wetness of the roller brush 20 are balanced.

[0094] Optionally, the acute angle A between the working surface 71 and the baseline is 38°-78°. For example, 40°, 45°, 50°, 55°, 60°, 65°, 70° or 75°.

[0095] In this embodiment, the acute angle A between the working surface 71 and the baseline is 50°.

[0096] After cleaning the surface to be cleaned, the surface of the roller brush 20 carries wastewater. If the wastewater is mixed with the liquid sprayed by the roller brush 20 and the nozzle assembly 50 for further cleaning, the liquid used to clean the surface to be cleaned will be contaminated, affecting the cleaning effect.

[0097] To address the aforementioned issues, a rear scraper 80 is also provided on the housing 10. The rear scraper 80 is disposed within the receiving groove 11 and located behind the roller brush 20, with the rear scraper 80 in contact with the roller brush 20. During use, the main roller 61 and the roller brush 20 are aligned (e.g., ...). Figure 4 The roller brush 20 rotates (in the direction indicated by R), spraying liquid onto its surface through the cooperation of the nozzle assembly 50 and the baffle 40. The liquid is then evenly spread by the front scraper 70 before contacting the surface to be cleaned. After cleaning, the roller brush 20 surface carries wastewater. As the roller brush 20 rotates forward, the wastewater-laden surface first contacts the rear scraper 80, which removes the wastewater before rotating back to the nozzle assembly 50 and baffle 40. This design prevents the roller brush 20 from carrying wastewater during cleaning, thus improving the cleaning effect.

[0098] Understandably, to ensure cleaning effectiveness, the rear scraper 80 is required to scrape away as much wastewater as possible. Therefore, the rear scraper 80 is made of metal to give it good strength and prevent deformation, thereby ensuring the scraping effect of the rear scraper 80 on wastewater.

[0099] Specifically, the rear scraper 80 contacts the lower rear end of the roller brush 20, facilitating the suction of the scraped wastewater into the fluid channel 31.

[0100] To reduce the resistance of the rear scraper 80 to the roller brush 20, the interference fit between the rear scraper 80 and the roller brush 20 is 3mm-4mm, thereby reducing energy loss caused by driving the roller brush 20 to rotate and reducing the energy consumption of the floor brush mechanism. For example, the interference fit between the rear scraper 80 and the roller brush 20 can be 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, or 3.9mm.

[0101] In this embodiment, the interference fit between the rear scraper 80 and the roller brush 20 is 3.5 mm.

[0102] Existing technologies typically improve the uniformity of liquid sprayed from nozzle assemblies through multiple flow splitting. This results in large nozzle assembly sizes and a large space occupation, thus affecting the overall volume and weight of the floor brush mechanism. Furthermore, the multi-layered flow splitting structure within the nozzle assembly is complex, leading to high liquid flow resistance and increased energy consumption. Additionally, the cross-sectional area of ​​the splitting channels within the nozzle assembly is small, increasing the probability of channel blockage.

[0103] To solve the above problems, such as Figures 5-7As shown, in this embodiment, the nozzle assembly 50 further includes a main body and a separator 53. A cavity is formed within the main body for communication with the liquid supply channel 12. An inlet connector 511 is provided on one side surface of the main body, forming an inlet that communicates with the cavity within the main body. Multiple outlets are provided on the opposite side surface of the main body, each outlet corresponding to a nozzle 521. The separator 53 is disposed within the cavity and located between the inlet and outlet. The separator 53 divides the cavity into a front cavity communicating with the inlet and a rear cavity communicating with the outlet. Multiple connecting ports are provided on the separator 53 along a first direction, connecting the front cavity and the rear cavity. The first direction is the axial direction of the roller brush 20.

[0104] In this embodiment, by providing a separator 53 within the main body to distribute the liquid entering the pre-cavity, the uniformity of the liquid entering the post-cavity through multiple connecting ports is ensured, thereby guaranteeing that the liquid in the post-cavity can be uniformly sprayed out through multiple nozzles 521. The nozzle assembly 50 has a simple structure and internal flow channel, reducing the resistance experienced by the liquid and thus minimizing resistance loss. The arrangement direction of the pre-cavity and post-cavity is the same as that of the inlet and outlet, ensuring that the liquid flow direction within the flow channel remains unchanged. This helps to reduce the size of the nozzle assembly 50 along the inlet and outlet arrangement direction, thereby reducing costs.

[0105] By using the above-mentioned nozzle assembly 50, the number of outlets can be reduced while achieving uniform liquid distribution, so as to ensure that each outlet has a certain size and avoid the problems of high liquid resistance and easy clogging caused by small outlet cross-sectional size.

[0106] In this embodiment, there are six outlets, each with a diameter of 0.5-0.8 mm. The number of outlets is small, the diameter is large, and they are not easily blocked.

[0107] Specifically, the main body includes an upper cover 51 and a lower cover 52 that are oppositely disposed and sealed together. The inlet connector 511 can be integrally formed on the upper cover 51, and the nozzle 521 can be integrally formed on the lower cover 52. The separator 53 is located between the upper cover 51 and the lower cover 52. The separator 53 and the upper cover 51 form a front cavity, and the separator 53 and the lower cover 52 form a rear cavity. The upper cover 51, the separator 53, and the lower cover 52 all extend along the axial direction of the roller brush 20, and multiple outlets are arranged along the axial direction of the roller brush 20 to ensure that the sprayed liquid can be evenly distributed axially on the roller brush 20.

[0108] Optionally, both the upper cover 51 and the lower cover 52 are groove structures, including a groove bottom plate and groove side plates circumferentially arranged around and connected to the groove bottom plate. For ease of description, the groove side plate of the upper cover 51 is referred to as the upper groove side plate 513, and the groove bottom plate of the upper cover 51 is referred to as the upper groove bottom plate; the groove side plate of the lower cover 52 is referred to as the lower groove side plate 522, and the groove bottom plate of the lower cover 52 is referred to as the lower groove bottom plate 523. The top end face of the upper groove side plate 513 and the top end face of the lower groove side plate 522 are both contact end faces. After the upper cover 51 and the lower cover 52 are assembled, their contact end faces abut against each other and can be fixed and sealed by welding.

[0109] To improve the sealing performance of the main body, a raised rib 512 is provided on the contact end surface of the upper cover 51, and a groove is provided on the contact end surface of the lower cover 52. When the upper cover 51 and the lower cover 52 are assembled, the raised rib 512 is inserted into the groove. After the upper cover 51 and the lower cover 52 are sealed and fixed, the raised rib 512 and the groove can also form a labyrinth seal structure to further improve the sealing performance of the main body.

[0110] To facilitate the fixing of the partition 53 to the main body, the partition 53 includes a partition plate and a side plate arranged around the partition plate. The partition plate abuts against the contact end surface of the lower cover 52, and the end of the side plate abuts against the inner wall of the upper groove bottom plate of the upper cover 51. The partition 53 is fixed by clamping the upper cover 51 and the lower cover 52, without the need for additional connecting structures or welding processes to fix the partition 53, which simplifies the processing steps and reduces costs.

[0111] To ensure that the contact surface of the lower cover can contact the contact surface of the upper cover 51 and the partition respectively, and to form a labyrinth seal structure, such as Figure 6 and Figure 7 As shown, the lower groove side plate 522 includes an inner annular plate 5222 and an outer annular plate 5221 spaced apart, forming a groove between the inner annular plate 5222 and the outer annular plate 5221. The upper groove side plate 513 abuts against the outer annular plate 5221, the protruding rib 512 is inserted into the groove, and the partition of the separator 53 abuts against the inner annular plate 5222.

[0112] The thickness H of the lower groove side plate 522 of the lower cover 52 is greater than the thickness h of the upper groove side plate 513 of the upper cover 51, so that the lower groove side plate 522 can abut against the partition 53 while abutting against the upper groove side plate 513.

[0113] To ensure that the liquid entering the nozzle assembly 50 can be smoothly sprayed onto the baffle 40, the flow area of ​​the inlet is greater than the sum of the flow areas of the multiple connecting ports, and the sum of the flow areas of the multiple connecting ports is greater than the sum of the cross-sectional areas of the multiple outlets. This arrangement allows the pressure of the liquid to gradually increase as it passes through the inlet, connecting ports, and outlets, which is beneficial for the sprayed liquid to be directly sprayed onto the baffle 40 and finally evenly distributed to the roller brush 20.

[0114] Optionally, the inlet flow area is 3.5-4.5 times the sum of the flow areas of multiple outlets, for example, 3.6 times, 3.7 times, 3.8 times, 3.9 times, 4 times, 4.1 times, 4.2 times, 4.3 times, or 4.4 times. Within this pressurization range, the liquid finally distributed onto the roller brush 20 will be more even, resulting in better cleaning.

[0115] Optionally, the imported flow area is 4.5mm. 2 -10.5mm 2 The sum of the flow areas of multiple connecting ports is 3mm. 2 -7mm 2 The sum of the circulation areas of multiple outlets is 1 mm. 2 -3mm 2 .

[0116] In this embodiment, there is one inlet, which is a circular hole with a diameter of 2.5 mm. There are four connecting ports, each with a diameter of 1 mm, and six outlets, each with a diameter of 0.5 mm. Correspondingly, the flow area of ​​the inlet is 4.16 times the sum of the flow areas of the multiple outlets, which makes the liquid at the nozzle 521 4.16 times more pressurized than the liquid at the inlet. This allows the liquid at the nozzle 521 to be directly sprayed onto the baffle plate 40 and finally evenly distributed to the roller brush 20.

[0117] In other embodiments, the inlet, outlet, and connecting port can also be holes of other shapes, such as polygonal or irregular shapes. The flow area and number of the inlet, outlet, and connecting port can be set according to actual needs.

[0118] To ensure more uniform liquid distribution within the nozzle assembly 50, the inlet, connecting port, and outlet are staggered. With one inlet and multiple connecting ports, the ports can be distributed approximately symmetrically relative to the inlet, allowing the liquid entering the pre-processing chamber from the inlet to flow evenly through the multiple connecting ports into the post-processing chamber.

[0119] Furthermore, the alternating arrangement of multiple connecting ports and multiple outlets along the first direction helps to improve the uniformity of the liquid ejected from the nozzle 521.

[0120] In this embodiment, multiple outlets are evenly distributed on the lower cover 52 along the first direction to improve the uniformity of the liquid sprayed from the nozzle 521.

[0121] Example 2

[0122] This embodiment provides a floor brush mechanism, which is a further improvement on Embodiment 1. To better guide the liquid to disperse on the baffle 40, as... Figure 8As shown, since the working surface 71 and the baffle 40 are flush with the side surfaces facing the nozzle assembly 50, a plurality of first guide ribs 41 are provided on their common plane 81. Optionally, the first guide ribs 41 can be separate components connected to the baffle 40 and / or the front scraper 70; they can also be integrally formed on the baffle 40; they can also be integrally formed on the front scraper 70; or they can be partially formed on the baffle 40 and partially formed on the front scraper 70.

[0123] The first guide rib 41 extends from top to bottom, and multiple first guide ribs 41 are arranged along the axial direction of the roller brush 20, which can be uniformly arranged along the axial direction. By setting multiple first guide ribs 41, the liquid sprayed onto the baffle plate 40 can flow downward along the first guide ribs 41, restricting the flow direction of the liquid in each area on the baffle plate 40, so as to make the liquid more evenly dispersed.

[0124] It is understandable that when the liquid flows along the baffle 40, a large amount of liquid gathers at the bottom of the baffle 40. In order to improve the guiding effect on the liquid at the bottom of the baffle 40, the height of the first guide rib 41 gradually increases from top to bottom.

[0125] Optionally, the first guide rib 41 can extend from the baffle 40 to the front scraper 70 to further improve the guiding effect on the liquid.

[0126] Example 3

[0127] This embodiment provides a floor brush mechanism, which has a structure largely the same as the floor brush mechanism in Embodiment 2, such as... Figure 9 As shown, the difference lies in that: instead of a first guide rib 41, a second guide rib 72 is provided on the common plane 81, and the second guide rib 72 extends along the axial direction of the roller brush 20. The second guide rib 72 is provided on the side of the baffle plate 40 facing the nozzle assembly 50 or on the side of the front scraper 70 facing the nozzle assembly 50.

[0128] In this embodiment, by adding a second guide rib 72 extending along the axial direction of the roller brush 20 on the working surface of the front scraper 70, when the liquid flows along the common plane 81 to the second guide rib 72, the liquid can change its flow direction to adhere to the surface of the second guide rib 72 and flow, which is beneficial for the liquid to flow along the front scraper 70, thereby making the liquid distribution uniform and improving the cleaning effect of the roller brush 20.

[0129] Furthermore, the surface of the second guide rib 72 is a convex curved surface, which makes the second guide rib 72 without sharp edges, ensuring that the liquid can adhere to the second guide rib 72 and flow.

[0130] Example 4

[0131] This embodiment provides a cleaning device, including a body and a floor brush mechanism as described in Embodiment 1, Embodiment 2, or Embodiment 3, wherein the floor brush mechanism is located at the bottom of the body. The cleaning device can be a floor scrubber.

[0132] When the cleaning equipment is in use, the floor brush mechanism pushes forward and pulls backward relative to the surface to be cleaned. The back-and-forth movement of the floor brush mechanism improves the cleaning effect on the surface to be cleaned.

[0133] To effectively control the start and stop of the nozzle assembly 50, the cleaning equipment also includes a sensor electrically connected to the nozzle assembly 50. The sensor detects the direction of movement of the floor brush mechanism, enabling the nozzle assembly 50 to spray liquid when the floor brush mechanism moves towards the front of the roller brush 20, and to spray liquid at a preset flow rate or shut off spraying when the floor brush mechanism moves towards the rear of the roller brush 20. This achieves water conservation and reduces residual water stains on the surface to be cleaned. The preset flow rate is lower than the spray flow rate of the nozzle assembly 50 when the floor brush mechanism moves forward.

[0134] Optionally, the sensor includes a sensing element, an identification element, a first rotating element, and a second rotating element. The first rotating element is coaxially arranged and fixed with the main roller 61 so that the main roller 61 can drive the first rotating element to rotate synchronously when rotating. The second rotating element can switch between a first state and a second state. In the first state, the first rotating element rotates relative to the second rotating element; in the second state, the first rotating element and the second rotating element rotate synchronously. The identification element is disposed on the second rotating element so that the identification element can rotate under the drive of the main roller 61 in the second state and can be fixed in the first state. The sensing element is disposed on the floor brush mechanism and has a sensing area. The sensing element can identify the identification element entering the sensing area. Specifically, the signal of the sensing element is different when the identification element is inside the sensing area compared to when the identification element is outside the sensing area. By observing the change in the sensing element signal, it is possible to determine whether the identification element is located in the sensing area.

[0135] In this embodiment, when the main roller 61 is in the positive direction (e.g.) Figure 4 When the main roller 61 rotates in the direction indicated by R, it can drive the identification element to rotate into the sensing area, and the identification element is fixedly stationary within the sensing area. When the main roller 61 rotates in the opposite direction, it can drive the identification element to rotate out of the sensing area, and the identification element is fixedly stationary outside the sensing area.

[0136] Optionally, the second rotating member is nested within the first rotating member, and the first and second rotating members are connected by a damping member that allows the second rotating member to rotate together with the first rotating member. The identification member is connected to the second rotating member and extends out of the first rotating member. The floor brush mechanism is also provided with a limiting member that abuts against the identification member to prevent the identification member from rotating out of the sensing area in the forward direction and to prevent the identification member from rotating into the sensing area in the reverse direction.

[0137] Specifically, the limiting member is located on one side boundary of the sensing area. In some embodiments, the limiting member can be disposed within the sensing area, and the width of the limiting member is less than or equal to the width of the sensing area, so that the limiting member can be located within the sensing area when it is fixed.

[0138] When the main roller 61 rotates forward, it drives the first rotating component to rotate forward as well. Under the action of the damping component, the first and second rotating components are in a second state. The first rotating component drives the second rotating component to rotate forward synchronously, thereby bringing the identification component into the sensing area. When the identification component rotates forward with the second rotating component until it abuts against the limiting component, the limiting component restricts the identification component from continuing to rotate forward, thus switching the first and second rotating components to the first state. The second rotating component overcomes the action of the damping component and remains at its current position, so that the identification component remains in the sensing area.

[0139] When the main roller 61 rotates in the reverse direction, it drives the first rotating member to rotate in the reverse direction as well. Under the action of the damping member, the first and second rotating members are in the second state. The first rotating member will drive the second rotating member to rotate in the reverse direction synchronously, so that the identification member disengages from the limiting member and rotates out of the sensing area. When the identification member rotates in the reverse direction with the second rotating member until it abuts against the limiting member, the limiting member restricts the identification member from continuing to rotate in the reverse direction, thereby switching the first and second rotating members to the first state. The second rotating member overcomes the action of the damping member and stays at its current position, so that the identification member stays outside the sensing area.

[0140] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A floor brush mechanism, characterized in that, include: The housing (10) has a liquid supply channel (12) inside and a receiving groove (11) on the bottom surface of the housing (10). A roller brush (20) is rotatably disposed within the receiving groove (11); The nozzle assembly (50) is disposed in the receiving groove (11) and communicates with the liquid supply channel (12); A water-blocking part is provided in the receiving groove (11), the water-blocking part is located above the roller brush (20), and the water-blocking part is used to change the flow direction of the liquid sprayed by the nozzle assembly (50); A baffle plate (40) is provided in the receiving groove (11), the water blocking part is located on the baffle plate (40), the baffle plate (40) extends along the axial direction of the roller brush (20), and the nozzle assembly (50) includes a plurality of nozzles (521) arranged at intervals along the axial direction of the roller brush (20), the nozzles (521) are arranged facing the baffle plate (40); An interference section is provided in the receiving groove (11). The interference section is located downstream of the water-blocking section along the spraying direction of the nozzle assembly (50). The interference section abuts against the roller brush (20). A front scraper (70) is provided in the receiving groove (11), and part of the front scraper (70) forms the interference part. The side surface of the front scraper (70) facing the nozzle assembly (50) is flush with and connected to the side surface of the water-blocking part facing the nozzle assembly (50) to form a common plane (81). A plurality of first guide ribs (41) are provided on the common plane (81), the first guide ribs (41) extend from top to bottom, and the plurality of first guide ribs (41) are arranged along the axial direction of the roller brush (20).

2. The floor brush mechanism according to claim 1, characterized in that, The distance between the nozzle outlet of the nozzle assembly (50) and the surface of the water-blocking part facing the nozzle assembly (50) is 10mm-20mm.

3. The floor brush mechanism according to claim 2, characterized in that, The distance between the nozzle outlet of the nozzle assembly (50) and the surface of the water-blocking part facing the nozzle assembly (50) is 14 mm.

4. The floor brush mechanism according to claim 1, characterized in that, The surface of the water-blocking part facing the nozzle assembly (50) is inclined from top to bottom in a direction away from the nozzle assembly (50).

5. The floor brush mechanism according to any one of claims 1-4, characterized in that, The interference part is made of an elastic material.

6. The floor brush mechanism according to any one of claims 1-4, characterized in that, The interference between the interference portion and the roller brush (20) is 3-4 mm.

7. The floor brush mechanism according to any one of claims 1-4, characterized in that, The front scraper (70) has a side surface facing the nozzle assembly (50) at a preset angle to the surface to be cleaned, the preset angle being 50°-90°.

8. The floor brush mechanism according to claim 7, characterized in that, The preset included angle is 78°.

9. The floor brush mechanism according to any one of claims 1-4, characterized in that, The height of the first guide rib (41) gradually increases from top to bottom.

10. The floor brush mechanism according to any one of claims 1-4, characterized in that, A second guide rib (72) is provided on the common plane (81), and the second guide rib (72) extends along the axial direction of the roller brush (20).

11. The floor brush mechanism according to any one of claims 1-4, characterized in that, A rear scraper (80) is provided in the receiving groove (11). The rear scraper (80) is located on the rear side of the roller brush (20) and abuts against the roller brush (20).

12. The floor brush mechanism according to claim 11, characterized in that, The rear scraper (80) is made of metal.

13. The floor brush mechanism according to claim 11, characterized in that, The interference fit between the rear scraper (80) and the roller brush (20) is 3-4 mm.

14. The floor brush mechanism according to any one of claims 1-4, characterized in that, The nozzle assembly (50) includes: The main body has a cavity formed inside it. An inlet is provided on one side surface of the main body, and a plurality of outlets arranged along a first direction are provided on the opposite side surface of the main body. A partition (53) is disposed in the cavity and located between the inlet and the outlet. The partition (53) is used to divide the cavity into a front cavity communicating with the inlet and a rear cavity communicating with the outlet. The partition (53) is provided with a plurality of communication ports along a first direction, and the communication ports communicate with the front cavity and the rear cavity.

15. The floor brush mechanism according to claim 14, characterized in that, The circulation area of ​​the imports is greater than the sum of the circulation areas of the multiple exports.

16. The floor brush mechanism according to claim 15, characterized in that, The circulation area of ​​the imports is 3.5 to 4.5 times the sum of the circulation areas of the exports.

17. The floor brush mechanism according to claim 15, characterized in that, The sum of the flow areas of the multiple connecting ports is less than the flow area of ​​the inlet, but greater than the sum of the flow areas of the multiple outlets.

18. The floor brush mechanism according to claim 17, characterized in that, The imported flow area is 4.5mm. 2 -10.5mm 2 The sum of the flow areas of the multiple connecting ports is 3mm. 2 -7mm 2 The sum of the circulation areas of the multiple outlets is 1 mm. 2 -3mm 2 .

19. The floor brush mechanism according to claim 14, characterized in that, The inlet, the connecting port, and the outlet are staggered.

20. The floor brush mechanism according to claim 14, characterized in that, The plurality of the connecting ports and the plurality of the outlets are arranged alternately along the first direction.

21. The floor brush mechanism according to claim 14, characterized in that, The main body includes an upper cover (51) and a lower cover (52) that are disposed opposite to each other and sealed together. The inlet is disposed on the upper cover (51) and the outlet is disposed on the lower cover (52).

22. The floor brush mechanism according to claim 21, characterized in that, One of the upper cover (51) and the lower cover (52) has a protruding ridge (512) on its contact end surface, and the other has a groove on its contact end surface, wherein the protruding ridge (512) can be inserted into the groove.

23. The floor brush mechanism according to claim 21, characterized in that, The separator (53) is disposed between the upper cover (51) and the lower cover (52), the front cavity is located between the separator (53) and the upper cover (51), and the rear cavity is located between the separator (53) and the lower cover (52).

24. The floor brush mechanism according to claim 21, characterized in that, The separator (53) includes a partition and a side plate disposed around the partition. The partition abuts against the contact end surface of the lower cover (52), and the side plate abuts against the inner wall of the upper cover (51).

25. A cleaning device, characterized in that, Includes the floor brush mechanism as described in any one of claims 1-24.

26. The cleaning equipment according to claim 25, characterized in that, The cleaning equipment also includes: A sensor, the sensor being used to sense the direction of movement of the floor brush mechanism; The nozzle assembly (50) is electrically connected to the sensor and is configured to spray liquid when the floor brush mechanism moves toward the front of the roller brush (20) and to spray liquid at a preset flow rate or turn off spraying when the floor brush mechanism moves toward the rear of the roller brush (20).

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