Cleaning roller, cleaning equipment and scrubber

Abstract

The invention relates to a cleaning roller, cleaning equipment and a scrubber. Comprising a water absorption layer and a deformation layer which are coaxially arranged, the water absorption layer is made of a water absorption material, and the deformation layer is made of an elastic material; and the surface of the water absorption layer is a smooth and continuous surface. According to the scheme, the water absorption layer and the deformation layer are arranged, the surface of the water absorption layer is a smooth and continuous surface, the cleaning roller can be recovered after deformation through deformation buffering of the deformation layer, and the problem that in the prior art, a rolling brush is prone to being bent, broken and deformed in the using process, consequently, the rolling brush deforms, and the cleaning efficiency is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of household cleaning appliances, and in particular to a cleaning roller, cleaning equipment and a floor scrubber. Background Art

[0002] The current cleaning roller brush of cleaning equipment with water washing function is composed of separate bundles of bristles. Because the bristles are long and absorb a lot of water, there are large water stains on the ground. In addition, the surface of the bristles is very dirty after being stained with dirt. A large amount of clean water is required to clean the cleaning roller brush. Frequent water addition is required during the process, which affects the user experience. In addition, the bristles are easily bent, broken, and deformed during frequent use, causing the cleaning part of the roller brush to deform, seriously affecting the cleaning performance.

[0003] How to optimize and improve the design of the roller brush structure and improve the cleaning performance is an urgent problem to be solved in the cleaning equipment industry. Summary of the Invention

[0004] Based on this, it is necessary to provide a cleaning roller, a cleaning device and a floor scrubber to solve the problem in the prior art that the bristles are easily bent, broken and deformed during frequent use, resulting in deformation of the roller brush.

[0005] The cleaning roller comprises a coaxially arranged water-absorbing layer and a deformable layer, wherein the water-absorbing layer is made of a water-absorbing material and the deformable layer is made of an elastic material; the surface of the water-absorbing layer is smooth and continuous; the deformable layer satisfies the following requirements: elastic modulus E1 is 5-50 MPa; compression permanent deformation rate is ≤10%; density ρ1 is 0.8-1.2 g / cm 3 The water-absorbing layer satisfies: elastic modulus E2 is 0.1-2MPa; density ρ2 is 0.3-0.6g / cm 3 ; Compression permanent deformation rate ≥ 20%; 10≤E1 / E2≤30; and the thickness of the deformation layer H1 and the thickness of the water-absorbing layer H2 satisfy: 2≤H1 / H2≤5.

[0006] Furthermore, the water-absorbing layer is made of a porous hydrophilic material selected from water-absorbing sponge, water-absorbing fiber, water-absorbing cloth or hydrophilically treated non-woven fabric; and the material of the deformable layer is selected from sponge, silicone or rubber.

[0007] Furthermore, the preparation of the deformable layer includes the following steps: (a) mixing a rubber or silicone substrate with a foaming agent, wherein the amount of the foaming agent added is 1-5% of the weight of the substrate; (b) vulcanizing and foaming in a mold at 150-180°C for 20-40 minutes; (c) cooling and shaping to obtain a density of ρ1 = 0.8-1.2 g / cm 3 , microporous structure elastomer with elastic modulus E1=5-50MPa.

[0008] Furthermore, the hydrophilic treatment of the water-absorbing layer includes: (a) immersing the non-woven fabric or fiber substrate in a treatment solution containing 5-15wt% acrylic acid monomer; (b) plasma irradiation under a nitrogen atmosphere with a power of 50-100W and a time of 2-5 minutes; (c) the contact angle of the substrate after treatment is ≤30° and the water absorption rate is ≥0.3mL / s.

[0009] Furthermore, the composite of the water-absorbing layer and the deformable layer is achieved by: (a) coating a hot-melt adhesive layer with a thickness of 0.1-0.3 mm on the surface of the deformable layer, the adhesive layer having a melting point of 80-120° C.; (b) preheating the water-absorbing layer to 60-80° C. and then pressurizing and laminating the layer with a pressure of 0.2-0.5 MPa and a holding time of 10-30 seconds; and (c) achieving a composite interface peel strength of ≥5 N / cm (ASTM D903 standard).

[0010] Furthermore, the foaming agent is azodicarbonamide, the plasma treatment power is 80W±5%, and the hot melt adhesive is ethylene-vinyl acetate copolymer (EVA).

[0011] This solution also provides a cleaning device, comprising a body and the cleaning roller described above, wherein the cleaning roller is arranged on the body.

[0012] This solution also provides a floor scrubber, comprising a base and the cleaning roller described above, wherein the cleaning roller is arranged on the base.

[0013] The cleaning roller of the above embodiment is provided with a water-absorbing layer and a deformation layer. The surface of the water-absorbing layer is a smooth and continuous surface. The deformation buffer of the deformation layer can enable the cleaning roller to recover after deformation, so as to solve the problem in the prior art that the roller brush is easily bent, broken, and deformed during use, resulting in deformation of the roller brush and low cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a cleaning roller provided in one embodiment of the present invention;

[0015] Figure 2 A disassembled diagram of the cleaning roller structure provided in one embodiment of the present invention;

[0016] Figure 3 A cross-sectional view of a cleaning roller provided in accordance with one embodiment of the present invention;

[0017] Figure 4 A partial cross-sectional view of a cleaning device according to one embodiment of the present invention;

[0018] Figure 5 A schematic structural diagram of a floor scrubber provided in one embodiment of the present invention;

[0019] The reference numerals in the accompanying drawings are described as follows:

[0020] 100, cleaning roller; 110, water absorption layer; 120, deformation layer;

[0021] 200, cleaning equipment; 210, fuselage;

[0022] 300, floor scrubber; 310, base; 320, operating lever; DETAILED DESCRIPTION

[0023] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0026] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] Figure 1-Figure 5 It is one or more embodiments of the present invention.

[0030] The cleaning roller 100 includes a coaxially designed water-absorbing layer 110 and a deformable layer 120. The water-absorbing layer 110 is made of a water-absorbing material, and the deformable layer 120 is made of an elastic material. The surface of the water-absorbing layer 110 is a smooth and continuous surface. The elastic modulus E1 of the deformable layer 120 is selected to be 5-50 MPa. Preferably, the elastic modulus E1 of the deformable layer 120 is selected to be 15 MPa. Of course, if better deformation is sought, the elastic modulus E1 of the deformable layer 120 can be selected to be 10 MPa. Similarly, the elastic modulus E1 of the deformable layer 120 can be selected to be 20 MPa, 25 MPa, or 30 MPa. The compression permanent deformation rate (ASTM D395-B) of the deformable layer 120 does not exceed 10%, and the density ρ1 is 0.8-1.2 g / cm 3 The water absorbing layer 110 is made of elastic material with an elastic modulus E2 of 0.1-2 MPa and a density ρ2 of 0.3-0.6 g / cm 3 Made of a hydrophilic, water-absorbing material with a compression set rate of no less than 20%, the deformable layer 120's thickness H1 and the water-absorbing layer 110's thickness H2 satisfy the following conditions: 2 ≤ H1 / H2 ≤ 5, and 10 ≤ E1 / E2 ≤ 30. This ensures that the deformation of the deformable layer 120 and the water-absorbing layer 110 work together to achieve enhanced cleaning performance. This solution, thanks to the deformable layer 120, allows the cleaning roller 100 to deform under pressure and recover after the pressure is released. This addresses the existing problem of roller brushes deforming due to bristles easily bending, breaking, or deforming during frequent use.

[0031] In order to make the design of the scheme have a better cleaning effect, analysis experiments were designed to conduct comparative experiments from different dimensions such as elastic modulus, material density, material thickness, etc. to determine the better design range. Each group of experiments was carried out five times and the average value was taken. The relevant experiments and data are recorded as follows.

[0032] Table 1 shows the effect of elastic modulus on the cleaning performance of the cleaning roller. The effect of elastic modulus on the cleaning roller performance is analyzed through cleaning efficiency and cleaning roller life. The relevant data and records are as follows:

[0033] Other parameters are fixed (ρ1=1.0g / cm 3 , ρ2=0.45g / cm 3 , H1 / H2=3), only changing the E1 / E2 ratio to test the cleaning performance and life of the cleaning roller:

[0034] Table 1. Comparison of elastic modulus experimental data

[0035]

[0036]

[0037] Experiments show that when E1 / E2 increases from 9 to 10, the lifespan increases from 600 to 1300 times (an increase of 117%), resulting in a performance mutation. The data in the experiment shows nonlinear changes, proving that 10≤E1 / E2≤30 is a creative threshold, not a simple linear optimization.

[0038] Table 2 shows the effect of density on the axial compressive strength of the cleaning roller. With E1 / E2 fixed at 15 and H1 / H2 at 3, the density combination was changed and the relevant data and records of the roller structure stability test were as follows:

[0039] Table 2. Comparison of test data on the effect of density on the axial compressive strength of the cleaning roller

[0040]

[0041] It can be seen from the experiment that the optimal range is: when ρ1=0.8-1.2 and ρ2=0.3-0.6 are combined, the drainage efficiency is greater than 0.3mL / s and the structure is stable.

[0042] Table 3 shows the effect of thickness on the performance of the cleaning roller. With E1 / E2 fixed at 15, ρ1 at 1.0, and ρ2 at 0.45, the thickness ratio was varied to observe the effect of edge warping on the cleaning roller.

[0043] Table 3. Effect of deformation layer and water absorption layer thickness on cleaning roller

[0044] H1 / mm H2 / mm H1 / H2 Edge warping risk 0.5 (comparison) 0.5 1 high 1 (Patent minimum) 0.5 2 Low 1.5 0.5 3 none 2.5 (Patent Cap) 0.5 5 none 3 (Comparison) 0.5 6 middle

[0045] From the experiment, it can be concluded that when 2≤H1 / H2≤5, the risk of warping of the large edge of the cleaning roller is significantly lower, which is more conducive to maintaining the uniformity of the surface of the cleaning roller.

[0046] In one embodiment, the water-absorbing layer 110 is made of a porous hydrophilic material selected from a water-absorbing sponge, a water-absorbing fiber, a water-absorbing cloth, or a hydrophilically treated non-woven fabric. The deformable layer 120 can be made of a material selected from a sponge, silicone, or rubber.

[0047] To ensure better deformation recovery of the deformable layer 120, the deformable layer is made of a material with a compression set rate (ASTM D395-B) of ≤10%. The water-absorbing layer 110 can be made of a material with a compression set rate of ≥20%.

[0048] The steps for preparing the deformable layer 120 are as follows:

[0049] (a) mixing a rubber or silicone substrate with a foaming agent, wherein the amount of the foaming agent added is 1-5% by weight of the substrate;

[0050] (b) vulcanizing and foaming in a mold at 150-180° C. for 20-40 minutes;

[0051] (c) After cooling and setting, the density is ρ1 = 0.8-1.2 g / cm 3 , microporous structure elastomer with elastic modulus E1=5-50MPa.

[0052] The hydrophilic treatment of the water-absorbing layer 110 is as follows, including:

[0053] (a) immersing a nonwoven fabric or fiber substrate in a treatment solution containing 5-15 wt % of an acrylic acid monomer;

[0054] (b) Plasma irradiation under nitrogen atmosphere at a power of 50-100 W for 2-5 minutes;

[0055] (c) The contact angle of the treated substrate is ≤30° and the water absorption rate is ≥0.3 mL / s.

[0056] The water absorbing layer 110 and the deformable layer 120 can be realized by the following composite method:

[0057] (a) Applying a 0.1-0.3 mm thick hot melt adhesive layer on the surface of the deformable layer, with a melting point of 80-120°C;

[0058] (b) preheating the water-absorbing layer to 60-80°C and then pressing and laminating it at a pressure of 0.2-0.5 MPa for 10-30 seconds;

[0059] (c) Composite interface peel strength ≥ 5N / cm (ASTM D903 standard).

[0060] During the treatment process, the foaming agent is azodicarbonamide, the plasma treatment power is 80W±5%, and the hot melt adhesive is ethylene vinyl acetate copolymer (EVA).

[0061] The present invention further provides a cleaning device 200, comprising a body 210 and the cleaning roller 100 of the above-mentioned embodiment, wherein the cleaning roller 100 is detachably mounted on the cleaning device 200. The cleaning device 200 may be a cleaning robot, a floor scrubber, a floor mopping machine, a tabletop cleaning machine, or a kitchen stove surface cleaning machine.

[0062] This solution also provides a floor scrubber 300 , which includes a base 310 , an operating rod 320 , and the cleaning roller 100 of the above solution. The base 310 and the operating rod 320 are rotatably connected, and the cleaning roller 100 is detachably disposed on the base 310 .

[0063] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. Cleaning roller, characterized by: It comprises a water-absorbing layer and a deformable layer arranged coaxially, wherein the water-absorbing layer is made of a water-absorbing material, and the deformable layer is made of an elastic material; the surface of the water-absorbing layer is a smooth and continuous surface; The deformation layer satisfies: elastic modulus E1 is 5-50 MPa; density ρ1 is 0.8-1.2 g / cm3; The water-absorbing layer satisfies the following requirements: elastic modulus E2 is 0.1-2 MPa; density ρ2 is 0.3-0.6 g / cm3; The elastic modulus of the deformable layer and the water absorbing layer satisfies: 10≤E1 / E2≤30; Furthermore, the thickness H1 of the deformable layer and the thickness H2 of the water absorbing layer satisfy: 2≤H1 / H2≤5.

2. The cleaning roller according to claim 1, wherein: The water-absorbing layer is made of a porous hydrophilic material selected from water-absorbing sponge, water-absorbing fiber, water-absorbing cloth or hydrophilically treated non-woven fabric; the material of the deformable layer is selected from sponge, silica gel or rubber.

3. The cleaning roller according to claim 2, characterized in that The compression permanent deformation rate of the deformable layer is ≤10%; the compression permanent deformation rate of the water absorbing layer is ≥20%.

4. The cleaning roller according to claim 2, wherein: The preparation of the deformation layer comprises the following steps: (a) mixing a rubber or silicone substrate with a foaming agent, wherein the amount of the foaming agent added is 1-5% by weight of the substrate; (b) vulcanizing and foaming in a mold at 150-180° C. for 20-40 minutes; (c) After cooling and setting, a microporous structure elastomer with a density of ρ1 = 0.8-1.2 g / cm3 and an elastic modulus E1 = 5-50 MPa is obtained.

5. The cleaning roller according to claim 4, characterized in that The hydrophilic treatment of the water-absorbing layer comprises: (a) immersing a nonwoven fabric or fiber substrate in a treatment solution containing 5-15 wt % of an acrylic acid monomer; (b) Plasma irradiation under nitrogen atmosphere at a power of 50-100 W for 2-5 minutes; (c) The contact angle of the treated substrate is ≤30° and the water absorption rate is ≥0.3 mL / s.

6. The cleaning roller according to claim 5, characterized in that The compounding of the water absorbing layer and the deformable layer is achieved by the following method: (a) Applying a 0.1-0.3 mm thick hot melt adhesive layer on the surface of the deformable layer, with a melting point of 80-120°C; (b) preheating the water-absorbing layer to 60-80°C and then pressing and laminating it at a pressure of 0.2-0.5 MPa for 10-30 seconds; (c) Composite interface peel strength ≥5N / cm.

7. The cleaning roller according to claim 6, characterized in that The foaming agent is azodicarbonamide, the plasma treatment power is 80W±5%, and the hot melt adhesive is ethylene-vinyl acetate copolymer (EVA).

8. A cleaning device, characterized in that: The cleaning roller comprises a body and the cleaning roller according to any one of claims 1 to 7, wherein the cleaning roller is arranged on the body.

9. A floor scrubber, characterized in that: The cleaning roller comprises a base, an operating rod and the cleaning roller according to any one of claims 1 to 7, wherein the base and the operating rod are rotatably connected, and the cleaning roller is arranged on the base.

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