Cleaning brush

Abstract

The application discloses a cleaning brush. The cleaning brush comprises a hard support ring, two hard support rods arranged side by side and at intervals, a first flexible cleaning part and a second flexible cleaning part. The first flexible cleaning part is arranged along the circumference of the hard support ring. The hard support rod has a free end and a connecting end arranged oppositely. The connecting end is connected to the outer circumferential wall of the hard support ring. The second flexible cleaning part is arranged on the surface of the free end of the hard support rod and extends along the hard support rod. The extending direction of the hard support rod intersects with the central axis direction of the hard support ring. The cleaning brush can effectively exert force on the area to be cleaned through the hard support ring and the two hard support rods arranged side by side and at intervals, thereby improving the cleaning efficiency and effect.

Description

Technical Field

[0001] This application relates to the field of cleaning tools, and in particular to a cleaning brush. Background Technology

[0002] As a commonly used drinking utensil in daily life, the cleanliness of the inside and outside of straws is crucial for maintaining hygiene and health. Currently, various types of straw cleaning brushes are widely available for cleaning residues from the inner and outer walls of straws.

[0003] A typical cleaning brush usually consists of a cleaning rod for cleaning the inside of a straw and a hanging loop attached to one end of the cleaning rod. This loop is used for cleaning the outside of the straw and for suspending the cleaning brush. However, when the user grips the cleaning rod to scrub the outside of the straw, the hanging loop is located at the end of the cleaning rod, far from the user's hand. In this position, the hanging loop cannot effectively contact the outside of the straw, nor can it provide a stable, controllable point of force to apply the necessary friction or pressure for cleaning, easily resulting in low cleaning efficiency or incomplete cleaning.

[0004] The above content is only used to assist in understanding the technical solution of the utility model and does not represent an admission that the above content is prior art. Utility Model Content

[0005] In view of the above problems, this utility model proposes a cleaning brush, which aims to solve the technical problem that the hanging ring cannot effectively exert force, resulting in low cleaning efficiency or incomplete cleaning.

[0006] To achieve the above objectives, the cleaning brush proposed in this utility model includes a rigid support ring, two rigid support rods arranged side by side and spaced apart, a first flexible cleaning part, and a second flexible cleaning part; the first flexible cleaning part is arranged along the circumference of the rigid support ring. The rigid support rod has a free end and a connecting end disposed opposite to each other; the connecting end is connected to the outer peripheral wall of the rigid support ring; the second flexible cleaning part is disposed on the surface of the free end of the rigid support rod and extends along the rigid support rod; the extending direction of the rigid support rod intersects with the central axis direction of the rigid support ring.

[0007] Furthermore, the extension direction of the rigid support rod is tangent to the rigid support ring.

[0008] In one embodiment, the two connecting ends are respectively connected to a rigid support ring to form two connection points, the two connection points dividing the rigid support ring into a first segment facing the free end and a second segment away from the free end; The first flexible cleaning part includes a plurality of first protrusions protruding from the outer peripheral wall of the second section, and the plurality of first protrusions are spaced apart along the circumferential direction of the second section.

[0009] Furthermore, the first flexible cleaning part also includes a plurality of second protrusions protruding from the inner peripheral wall of the rigid support ring, the plurality of second protrusions being spaced apart along the circumferential direction of the rigid support ring; the ends of the plurality of second protrusions facing away from the rigid support ring are arranged to form a cleaning hole.

[0010] Furthermore, the cross-sectional area of ​​the first protrusion is larger than the cross-sectional area of ​​the second protrusion.

[0011] Furthermore, the first protrusion and the second protrusion are columnar, and the ratio of the diameter of the first protrusion to the diameter of the second protrusion is greater than or equal to 1.5 and less than or equal to 3.

[0012] In one embodiment, the second flexible cleaning part includes a first brush part and a second brush part respectively disposed on the two rigid support rods, wherein the diameter of the first brush part is larger than the diameter of the second brush part.

[0013] In one embodiment, the rigid support rod forms a gripping section between the second flexible cleaning part and the connecting end, and the ratio of the extension length of the gripping section to the extension length of the second flexible cleaning part is greater than or equal to 1 and less than or equal to 2.

[0014] In one embodiment, the rigid support ring includes a first steel member in the shape of an annulus, and the rigid support rod includes a second steel member in the shape of a rod; one end of the second steel member is connected to the first steel member.

[0015] Furthermore, the rigid support ring also includes a first silicone sleeve that wraps around the first steel component, and the rigid support rod also includes a second silicone sleeve that wraps around the second steel component; the first silicone sleeve and the second silicone sleeve are integrally formed.

[0016] This invention features a first flexible cleaning section arranged circumferentially along a rigid support ring. This rigid support ring supports the first flexible cleaning section, ensuring stable application of the first flexible cleaning section to the area to be cleaned regardless of whether the cleaning brush is pushed, pulled out, or rotated, thus improving cleaning efficiency and effectiveness. Furthermore, compared to a single rigid support rod, this invention uses two parallel and spaced rigid support rods to enhance the stability of the cleaning operation. The double-rod design provides stronger support and guidance to the rigid support ring during cleaning, making the cleaning path controllable and the cleaning action smoother and more powerful. This effectively prevents the cleaning brush from deflecting or wobbling, ensuring stable application of the first flexible cleaning section to the area to be cleaned. The double-rod structure also enhances overall rigidity, avoiding the torsional deformation problems that are common with single rods. In addition, this utility model also enriches the application scenarios of the cleaning brush. For example, the gripping part of the rigid support rod controls the first flexible cleaning part to clean the outer wall of the straw, the mouth of the cup, the lid of the cup, etc.; or the gripping part of the rigid support ring allows a single rigid support rod to drive the second flexible cleaning part to clean the inner wall of the straw, or allows two rigid support rods to clean the mouth of the cup and the cup wall at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This diagram shows a structural schematic of an embodiment of the cleaning brush of the present invention from a first perspective. Figure 2 for Figure 1 A schematic diagram of the cleaning brush from a second-view perspective; Figure 3 This is a schematic diagram of the structure of the second embodiment of the cleaning brush of this utility model; Figure 4 This is a schematic diagram of the third embodiment of the cleaning brush of this utility model; Figure 5 This is a structural schematic diagram of the fourth embodiment of the cleaning brush of this utility model.

[0019] Explanation of icon numbers: label name label name label name 100 Cleaning brush 21 Free end 32 second convex part 10 rigid support ring 22 Connection end 40 Second Flexible Cleaning Section 11 First paragraph 23 Holding Section 41 First printing 12 Second paragraph 30 First Flexible Cleaning Department 42 Second printing 20 Rigid support rod 31 first convex part 321 Cleaning hole The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B.

[0023] This utility model proposes a cleaning brush.

[0024] In this embodiment of the utility model, please refer to Figures 1 to 5 The cleaning brush 100 includes a rigid support ring 10, two parallel and spaced rigid support rods 20, a first flexible cleaning part 30, and a second flexible cleaning part 40. The first flexible cleaning part 30 is arranged circumferentially along the rigid support ring 10. The rigid support rods 20 have a free end 21 and a connecting end 22 that are disposed opposite to each other. The connecting end 22 is connected to the outer peripheral wall of the rigid support ring 10. The second flexible cleaning part 40 is disposed on the surface of the free end 21 of the rigid support rod 20 and extends along the rigid support rod 20. The extending direction of the rigid support rod 20 intersects the central axis direction of the rigid support ring 10.

[0025] The rigid support ring 10 serves as both the fixed carrier of the first flexible cleaning part 30 and the structural base of the rigid support rod 20. The rigid support ring 10 ensures the stability of the cleaning brush 100 during straw or cup cleaning, forming a ring-shaped cleaning structure together with the first flexible cleaning part 30 to facilitate cleaning the straw's outer wall, cup rim, and lid. Its rigid nature allows the rigid support ring 10 to withstand pressure and friction during use, preventing deformation and accurately transmitting the rotational and squeezing forces applied by the user to the cleaning area. During cleaning, the rigid support ring 10 maintains the ring-shaped layout of the first flexible cleaning part 30, ensuring stable contact with the area to be cleaned (such as the straw's outer wall and cup rim). The rigid support ring 10 can be circular, elliptical, triangular, hexagonal, or other polygonal rings, without limitation. The rigid support ring 10 can be fully enclosed or semi-enclosed (i.e., with appropriate notches), without limitation. The rigid support ring 10 can be made of rigid plastic, metal (such as stainless steel), composite materials, etc., and is not limited here. In addition, the rigid support ring 10 can also be used for hanging to facilitate drying and storage of the cleaning brush 100.

[0026] One end of the rigid support rod 20 is connected to the outer peripheral wall of the rigid support ring 10, and the other end is a free end 21. The rigid support rod 20 can be directly or indirectly connected to the rigid support ring 10. Specifically, it can be connected to the rigid support ring 10 by welding, gluing, injection molding, etc., which are not limited here. The rigid support rod 20 has a certain rigidity to support the second flexible cleaning part 40 and ensure shape stability, and can be used to clean the outer wall of the straw. The rigid support rod 20 can be cylindrical, square, or flat in cross-section, and its specific shape can be adapted to the shape of the straw. The material of the rigid support rod 20 can be rigid plastic, metal (such as stainless steel), composite material, etc., which are not limited here.

[0027] The two rigid support rods 20, arranged side-by-side and spaced apart, improve the stability of the cleaning operation. Specifically, when the user holds the rigid support rods 20 and controls the first flexible cleaning part 30 to clean the cup rim or straw, the two rigid support rods 20 and the rigid support ring 10 form a stable support structure, reducing misalignment and shaking of the rigid support ring 10 during cleaning, making the cleaning process more controllable. This design of the rigid support rods 20 also provides more operating methods. For example, the user can not only use the second flexible cleaning part 40 on one rigid support rod 20, but also use the second flexible cleaning parts 40 on both rigid support rods 20 simultaneously. When cleaning the outer wall or cup rim, the two rods are spaced apart, allowing two parallel areas to be wiped with a single action, which is more efficient than a single rod. The fact that the two rigid support rods 20 are arranged side by side and spaced apart means that the two rigid support rods 20 can be arranged in parallel, or the free ends 21 and connecting ends 22 of the two rigid support rods 20 can be spaced apart, and the extension directions of the two rigid support rods 20 intersect. The specifics are not limited here.

[0028] Understandably, the rigid support ring 10 and rigid support rod 20 are designed to provide sufficient structural strength and stability, while also possessing a certain degree of elasticity. This elasticity allows the rigid support ring 10 and rigid support rod 20 to deform appropriately under external forces to meet the user's needs.

[0029] The first flexible cleaning section 30 is arranged circumferentially along the rigid support ring 10. It is understood that the first flexible cleaning section 30 can be disposed on the inner or outer wall surface of the rigid support ring 10, or simultaneously on both surfaces; this is not limited here. The circumferential arrangement ensures that the first flexible cleaning section 30 maintains multi-point contact regardless of whether the cleaning brush 100 is pushed, pulled out, or rotated, reducing operation time and improving cleaning efficiency. In other words, the circumferential arrangement allows for more diverse operation methods of the cleaning brush 100, enabling users to choose the most effortless or most effective actions, thus enhancing convenience.

[0030] The first flexible cleaning section 30 and the second flexible cleaning section 40 can be a brush, silicone strip, or a sponge-like soft material, etc. The materials of the first flexible cleaning section 30 and the second flexible cleaning section 40 can be nylon brushes, silicone, TPU, etc. The first flexible cleaning section 30 and the second flexible cleaning section 40 utilize the bending, compression, and resilience properties of flexible materials, allowing them to automatically adjust their shape according to the curvature, minor irregularities, and dimensional changes of the inner and outer walls of the straw during the cleaning process, thereby contacting a larger effective area and improving the cleaning effect. Specifically, the first flexible cleaning section 30 can bypass local protrusions, bevels, or trademarks on the outer wall of the straw for cleaning, or bypass the threads of the cup rim for cleaning.

[0031] The rigid support rod 20 is positioned so that its extension direction intersects the central axis, rather than being simply parallel, causing the rigid support rod 20 to be arranged at a certain angle or offset relative to the rigid support ring 10. When the rigid support ring 10 is fitted onto the outer wall of the straw for cleaning, the central axis of the rigid support ring 10 roughly corresponds to the axial direction of the straw. In this way, the user's hand will not severely interfere with the straw when cleaning its outer wall.

[0032] This invention utilizes a first flexible cleaning part 30 arranged circumferentially along a rigid support ring 10. This allows the rigid support ring 10 to support the first flexible cleaning part 30, ensuring that the first flexible cleaning part 30 can stably apply force to the area to be cleaned regardless of whether the cleaning brush 100 is pushed, pulled out, or rotated, thereby improving cleaning efficiency and effectiveness. Furthermore, compared to a single rigid support rod 20, this invention improves the stability of the cleaning operation by using two parallel and spaced rigid support rods 20. The double-rod design provides stronger support and guidance to the rigid support ring 10 during cleaning, making the cleaning path controllable and the cleaning action smoother and more powerful. This effectively prevents the cleaning brush 100 from deflecting or shaking, thus ensuring that the first flexible cleaning part 30 stably applies force to the area to be cleaned. The double-rod structure also enhances overall rigidity, avoiding the torsional deformation problems that are common with single rods. In addition, this utility model also enriches the application scenarios of the cleaning brush 100. For example, it can hold the rigid support rod 20 to control the first flexible cleaning part 30 to clean the outer wall of the straw, the mouth of the cup, the lid of the cup, etc.; or it can hold the rigid support ring 10 to make a single rigid support rod 20 drive the second flexible cleaning part 40 to clean the inner wall of the straw or make two rigid support rods 20 clean the mouth of the cup and the cup wall at the same time.

[0033] Furthermore, the extension direction of the rigid support rod 20 is tangential to the rigid support ring 10. When the user holds the rigid support rod 20 and rotates the rigid support ring 10, the extension direction of the rod is consistent with the direction of the linear velocity of the user's rotation. This means that when the user rotates the cleaning brush 100, the second flexible cleaning part 40 does not strike the outer edge of the cup rim perpendicularly in a "point" manner, but rather scrapes along the circumference of the cup rim in a "line" or "surface" manner. This follow-the-flow scraping motion generates greater tangential friction, which, compared to the direct-poke contact of the radially arranged rod, can more effectively remove stubborn stains adhering to the cup rim and straw, significantly improving cleaning efficiency.

[0034] When the rigid support rods 20 extend tangentially, the vertical distance (spacing) between the two rods is typically close to or slightly larger than the diameter of the rigid support ring 10. When the diameter of the rigid support ring 10 is small, this arrangement allows the two rigid support rods 20 to naturally align on either side of the straw wall. The tangential extension ensures that the support rods remain approximately parallel to the straw wall over a considerable length. This means that the second flexible cleaning section 40 on the rod can adhere to the inner and outer walls of the straw over a large area and over a long distance, significantly increasing the effective contact area for a single brushing. When the diameter of the rigid support ring 10 is large, the two rigid support rods 20 can be positioned on either side of the cup rim for cleaning.

[0035] In one embodiment, the two connecting ends 22 are respectively connected to the rigid support ring 10 to form two connecting points, which divide the rigid support ring 10 into a first segment 11 facing the free end 21 and a second segment 12 away from the free end 21; the first flexible cleaning part 30 includes a plurality of first protrusions 31 protruding from the outer peripheral wall of the second segment 12, and the plurality of first protrusions 31 are arranged at intervals along the circumference of the second segment 12.

[0036] In this embodiment, the rigid support ring 10 is functionally divided by the connection point. The first segment 11 mainly serves as a structural connection and support, maintaining the distance between the two rods. The second segment 12 undertakes the cleaning function. Multiple first protrusions 31 distributed on its outer peripheral wall can scrape the edge of the cup mouth as the ring moves, forming a continuous circular cleaning trajectory, effectively removing residual liquid or dirt from the cup mouth.

[0037] When a user holds the rigid support rod 20 and uses the second flexible cleaning part 40 to clean, the rigid support rod 20 extends in the "rear" direction, while the rigid support ring 10 faces the "front" direction away from the rod (i.e., the second segment 12). The layout of the first protrusion 31 is concentrated at the front, allowing the cleaning force to be naturally directed to the area to be cleaned on the rim of the cup or the outer edge of the straw. This design allows the user to maintain stable friction during rotation or push-pull operations. At the same time, the first protrusion 31 is distributed circumferentially along the second segment 12, ensuring effective contact at different grip angles and improving the tolerance and coverage uniformity of the cleaning action.

[0038] Meanwhile, this embodiment not only ensures cleaning power through the first protrusion 31, but also forms a drainage channel through the gap between the first protrusions 31. This allows water to flow smoothly during the push-pull cleaning process, carrying away the detached dirt and reducing cleaning resistance. The shape of the first protrusion 31 can be hemispherical particles, conical bristles, long strip ribs, wavy scrapers, or serrated protrusions, etc. The first protrusions 31 can be arranged in a single row on the second segment 12, or in multiple rows in a staggered arrangement (such as a quincunx pattern). The first protrusions 31 can be made of a flexible material with a certain degree of hardness but without losing elasticity, such as silicone, thermoplastic elastomer, or high-density nylon brush. The shape, arrangement, and material of the first protrusions 31 are not limited here, and can be flexibly selected according to actual needs.

[0039] Furthermore, the first flexible cleaning part 30 also includes a plurality of second protrusions 32 protruding from the inner peripheral wall of the rigid support ring 10, the plurality of second protrusions 32 being spaced apart along the circumference of the rigid support ring 10; the ends of the plurality of second protrusions 32 facing away from the rigid support ring 10 enclose a cleaning hole 321.

[0040] In this embodiment, the second protrusion 32 is used to directly clean dirt, and its material is typically a flexible material with a certain degree of hardness but without losing elasticity (such as silicone, thermoplastic elastomer, or high-density nylon brush). By utilizing the elastic enclosure structure of the second protrusion 32, active wrapping and tight fit to the outer wall of the straw can be achieved, enabling full-circumferential cleaning without the user having to deliberately adjust the angle. The spaced second protrusions 32 take into account both the application of friction and the removal of dirt, and together with the rigid support rod 20 as a handle, the user can easily apply force, greatly improving cleaning efficiency and cleanliness.

[0041] The cleaning hole 321 is a spatial area enclosed by the ends of multiple second protrusions 32, serving as a channel for the straw to pass through and be brushed. When the straw is inserted into the cleaning hole 321, the second protrusions 32 fit tightly against the outer surface of the straw, achieving circumferential wiping through relative movement, effectively removing residues adhering to the sidewalls of the straw. The cleaning hole 321, formed by multiple second protrusions 32, has a certain degree of adaptability, accommodating straws of different diameters and improving versatility.

[0042] The second protrusion 32 can be shaped like a hemispherical particle, a conical bristle, a long strip rib, a wavy scraper, or a serrated protrusion, etc. The second protrusion 32 can be arranged in a single row on the second segment 12, or in multiple staggered rows (such as a quincunx pattern). The second protrusion 32 can be made of a flexible material with a certain degree of hardness but without sacrificing elasticity, such as silicone, thermoplastic elastomer, or high-density nylon brush bristles. The shape, arrangement, and material of the second protrusion 32 are not limited here and can be flexibly selected according to actual needs.

[0043] Furthermore, the cross-sectional area of ​​the first protrusion 31 is larger than that of the second protrusion 32. In this embodiment, the larger cross-sectional area makes the first protrusion 31 less prone to excessive collapse when compressed, allowing it to maintain a relatively upright state. This allows for greater pressure to be applied to the area to be cleaned, significantly improving the physical scraping effect on stubborn stains. Thus, the first protrusion 31, located on the outer wall of the rigid support ring 10, is more suitable for cleaning harder objects such as cup rims and lids.

[0044] The second protrusion 32 achieves dynamic contact with the outer wall of the straw primarily through its dense arrangement and elastic deformation capability. During the washing process, it automatically adjusts the contact force as the straw is inserted, avoiding scratches on the surface while effectively removing adhering substances. Based on this, the smaller cross-sectional area makes the second protrusion 32 more flexible, allowing it to better conform to the curvature of the straw's outer wall for bending and wrapping. While providing sufficient friction to remove surface stains, it effectively avoids scratching the straw's outer wall surface due to excessive hardness.

[0045] Furthermore, the first protrusion 31 and the second protrusion 32 are columnar, and the ratio of the diameter of the first protrusion 31 to the diameter of the second protrusion 32 is greater than or equal to 1.5 and less than or equal to 3.

[0046] In this embodiment, the ratio of the diameter of the first protrusion 31 to the diameter of the second protrusion 32 can be 1.5, 1.53, 1.65, 1.6, 1.78, 2, 2.1, 2.5, 2.7, or 3. If the ratio is less than 1.5, the dimensional difference between the first protrusion 31 and the second protrusion 32 is not significant, resulting in similar deformation under stress, making it difficult to effectively differentiate the cleaning suitability for harder parts (cup rims, lids, etc.) and softer parts (such as straws). If the ratio is greater than 3, the second protrusion 32 is too small, lacking structural strength, and prone to permanent deformation or breakage during repeated deformation, affecting its service life. Therefore, limiting the ratio of the diameter of the first protrusion 31 to the diameter of the second protrusion 32 to be greater than or equal to 1.5 and less than or equal to 3 ensures the matching of their structural strength and ensures that both can effectively act on the surface to be cleaned simultaneously.

[0047] In one embodiment, the second flexible cleaning part 40 includes a first brush part 41 and a second brush part 42 respectively disposed on two rigid support rods 20. The diameter of the first brush part 41 is larger than the diameter of the second brush part 42. When cleaning a thinner straw, the larger diameter first brush part 41 can reach the surface of the straw by extending a longer distance, providing sufficient contact pressure. When cleaning a thicker straw, the smaller diameter second brush part 42 avoids the problem of excessive friction and difficulty in pulling out due to overfilling. Thus, this design allows the cleaning brush 100 to be compatible with straws of different thicknesses within a certain range, eliminating the need for users to frequently change tools. The first brush part 41 / second brush part 42 can be made of nylon bristles, silicone bristles, or high-density sponge, and is not limited thereto.

[0048] In one embodiment, the rigid support rod 20 forms a holding section 23 between the second flexible cleaning part 40 and the connecting end 22, and the ratio of the extension length of the holding section 23 to the extension length of the second flexible cleaning part 40 is greater than or equal to 1 and less than or equal to 2.

[0049] In this embodiment, the rigid support rod 20 is functionally divided into two areas. One area has a second flexible cleaning section 40 for performing cleaning actions; the other area constitutes a grip section 23, which is the rod portion located between the second flexible cleaning section 40 and the connecting end 22, for the user to hold with their fingers to control the movement of the cleaning brush 100. The ratio of the extension length of the grip section 23 to the extension length of the second flexible cleaning section 40 can be 1, 1.25, 1.3, 1.5, 1.8, 1.9, or 2. When the ratio is less than 1, the grip section 23 is too short, and the user is prone to uneven force application due to unstable grip during operation, affecting the cleaning effect; when the ratio is greater than 2, the grip section 23 is too long. Although the gripping space is sufficient, it increases the lever arm length from the point of force application to the cleaning point. An excessively long lever arm amplifies the slight tremors of the hand, resulting in inaccurate brush head positioning and difficulty in accurately transmitting the pressure of the fingers to the bristle roots, thus reducing friction and creating cleaning blind spots. Therefore, by controlling the length ratio of the grip section 23 to the second flexible cleaning section 40 to be between 1 and 2, the stability of the grip is ensured, the force transmission path is shortened, and the control precision is improved.

[0050] In one embodiment, the rigid support ring 10 includes a first steel member in the shape of an annulus, and the rigid support rod 20 includes a second steel member in the shape of a rod; one end of the second steel member is connected to the first steel member.

[0051] In this embodiment, the first steel component and the second steel component form the skeleton of the rigid support ring 10 and the rigid support rod 20, respectively. In related technologies, the support structure is too soft, and when the user scrubs vigorously, the support rod or support ring is prone to bending or slipping, resulting in the scrubbing force not being effectively transmitted to the cleaning area, affecting the cleaning effect. In this embodiment, the use of the first and second steel components effectively improves the rigidity of the overall structure, ensuring that the force can be stably transmitted to the tip of the bristles during the scrubbing process, effectively improving the cleaning brush's cleaning ability. At the same time, the steel components can be made into thinner wires. Under the premise of meeting the same support force requirements, the cross-sectional dimensions of the first and second steel components can be made smaller than those of the plastic skeleton. This means that the first flexible cleaning part 30 or the second flexible cleaning part 40 can have a longer effective length, or the overall structure can be more compact. This reduces the volume of the rigid part of the cleaning brush 100, making it easier for the second flexible cleaning part 40 to enter the narrow suction tube, while also reducing water flow resistance during cleaning.

[0052] Understandably, the first and second steel components are designed to provide sufficient structural strength and stability, while also possessing a certain degree of elasticity. This elasticity allows the first and second steel components to deform appropriately under external forces to meet the user's requirements.

[0053] The first and second steel components can have various shapes. For example, both the first and second steel components can be formed by intertwining (twisting) two or more steel wires; or both can be formed by a single steel wire. The first and second steel components can be connected in various ways. For example, the first and second steel components can be integrally formed from the same steel wire through a bending process. For instance, the steel wire is first bent into a ring to form the first steel component, and its two ends extend out to form two parallel second steel components; or, the first and second steel components can be connected by welding or injection molding.

[0054] Furthermore, the rigid support ring 10 also includes a first silicone sleeve that wraps around the first steel component, and the rigid support rod 20 also includes a second silicone sleeve that wraps around the second steel component; the first silicone sleeve and the second silicone sleeve are integrally formed.

[0055] In this embodiment, the first and second silicone sleeves serve as the "skin" of the cleaning brush 100. On one hand, they cushion the hard impact of the steel frame on the surface to be cleaned, preventing scratches and providing protection. On the other hand, the silicone surface has a certain coefficient of friction, which prevents slipping when wrapped around the steel component, improving the user's grip. Simultaneously, it isolates water from the steel component, preventing rust and extending its service life. Furthermore, the one-piece molded silicone sleeve structure tightly wraps around the steel frame, preventing the sleeve from loosening, falling off, or accumulating dirt and grime due to long-term use, ensuring that the cleaning brush 100 maintains its structural integrity and hygiene even after prolonged use.

[0056] Meanwhile, during the integral molding process of the first silicone sleeve and the second silicone sleeve, the first silicone sleeve and the second silicone sleeve can be directly molded to form raised silicone bristles or silicone particles, so as to form the first flexible cleaning part 30 and the second flexible cleaning part 40 respectively.

[0057] In some embodiments, the cleaning brush 100 includes a rigid support ring 10, two rigid support rods 20, a first flexible cleaning part 30, and a second flexible cleaning part 40. The first flexible cleaning part 30 is arranged circumferentially along the rigid support ring 10. The rigid support rods 20 have oppositely disposed free ends 21 and connecting ends 22. The free ends 21 of the two rigid support rods 20 are separated from each other, and the connecting ends 22 of the two rigid support rods 20 are connected to each other and jointly connected to the outer peripheral wall of the rigid support ring 10. The second flexible cleaning part 40 is disposed on the surface of the free ends 21 of the rigid support rods 20 and extends along the rigid support rods 20. The extending direction of the rigid support rods 20 intersects with the central axis direction of the rigid support ring 10. In this way, the two rigid support rods 20 are V-shaped for easy handholding by the user, while the rigid support ring 20 provides a certain rigidity, so that the first cleaning part 30 can stably apply force to the surface to be cleaned, improving the cleaning effect and efficiency.

[0058] In some embodiments, the cleaning brush 100 includes a rigid support ring 10, a rigid support rod 20, a first flexible cleaning part 30, and a second flexible cleaning part 40. The first flexible cleaning part 30 is arranged circumferentially along the rigid support ring 10. One end of the rigid support rod 20 is connected to the outer peripheral wall of the rigid support ring 10. The second flexible cleaning part 40 is disposed on the surface of the free end 21 of the rigid support rod 20 and extends along the rigid support rod 20. The extending direction of the rigid support rod 20 intersects the central axis direction of the rigid support ring 10. Thus, the rigid support ring 20 provides a certain rigidity, enabling the first cleaning part 30 to stably apply force to the surface to be cleaned, thereby improving the cleaning effect and efficiency.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning brush, characterized in that, It includes a rigid support ring, two rigid support rods arranged side by side and spaced apart, a first flexible cleaning part, and a second flexible cleaning part; the first flexible cleaning part is arranged along the circumference of the rigid support ring; The rigid support rod has a free end and a connecting end disposed opposite to each other; the connecting end is connected to the outer peripheral wall of the rigid support ring; the second flexible cleaning part is disposed on the surface of the free end of the rigid support rod and extends along the rigid support rod; the extending direction of the rigid support rod intersects with the central axis direction of the rigid support ring.

2. The cleaning brush as described in claim 1, characterized in that, The rigid support rod extends in a direction tangent to the rigid support ring.

3. The cleaning brush as described in claim 2, characterized in that, The two connecting ends are respectively connected to the rigid support ring to form two connection points, and the two connection points divide the rigid support ring into a first segment facing the free end and a second segment away from the free end; The first flexible cleaning part includes a plurality of first protrusions protruding from the outer peripheral wall of the second section, and the plurality of first protrusions are spaced apart along the circumferential direction of the second section.

4. The cleaning brush as described in claim 3, characterized in that, The first flexible cleaning part further includes a plurality of second protrusions protruding from the inner peripheral wall of the rigid support ring, the plurality of second protrusions being spaced apart along the circumference of the rigid support ring; the ends of the plurality of second protrusions facing away from the rigid support ring are arranged to form a cleaning hole.

5. The cleaning brush as described in claim 4, characterized in that, The cross-sectional area of ​​the first protrusion is greater than the cross-sectional area of ​​the second protrusion.

6. The cleaning brush as described in claim 5, characterized in that, The first protrusion and the second protrusion are columnar, and the ratio of the diameter of the first protrusion to the diameter of the second protrusion is greater than or equal to 1.5 and less than or equal to 3.

7. The cleaning brush as described in claim 1, characterized in that, The second flexible cleaning part includes a first brush part and a second brush part respectively disposed on the two rigid support rods, wherein the diameter of the first brush part is larger than the diameter of the second brush part.

8. The cleaning brush as described in claim 1, characterized in that, The rigid support rod forms a gripping section between the second flexible cleaning part and the connecting end, and the ratio of the extension length of the gripping section to the extension length of the second flexible cleaning part is greater than or equal to 1 and less than or equal to 2.

9. The cleaning brush according to any one of claims 1-8, characterized in that, The rigid support ring includes a first steel member in the shape of a ring, and the rigid support rod includes a second steel member in the shape of a rod; one end of the second steel member is connected to the first steel member.

10. The cleaning brush as described in claim 9, characterized in that, The rigid support ring further includes a first silicone sleeve that wraps around the first steel component, and the rigid support rod further includes a second silicone sleeve that wraps around the second steel component; the first silicone sleeve and the second silicone sleeve are integrally formed.

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