Self-dispensing double-layer dishwashing brush
By incorporating a liquid reservoir and a water-permeable cleaning cover within the dishwashing brush, the problem of needing to frequently apply detergent to existing dishwashing tools is solved, enabling convenient and continuous cleaning and even detergent application, thus improving cleaning efficiency and cost-effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI YANNENG TECH CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-21
AI Technical Summary
Existing dishwashing tools require frequent application of detergent, leading to inconvenience, waste, and uneven detergent application, which affects cleaning effectiveness.
A self-dispensing double-layer dishwashing brush was designed. By nesting a soft liquid storage bladder inside a three-dimensional hollow soft cleaning cover, the cleaning liquid is evenly seeped out when squeezed through capillaries, simplifying the operation process and avoiding waste.
It enables continuous cleaning tasks to be completed without frequent application of cleaning agent, improving cleaning efficiency and ensuring more even application of cleaning agent, thus reducing waste.
Smart Images

Figure CN224523065U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cleaning appliance technology, and in particular relates to a self-dispensing liquid double-layer dishwashing brush. Background Technology
[0002] Existing dishwashing tools, such as sponges, rags, or scouring pads, typically require users to frequently dip or pour external cleaning agents. This not only makes the process cumbersome and interrupts the cleaning flow, affecting ease of use, but may also lead to waste of cleaning agents or uneven concentrations due to difficulty in controlling the amount applied, thus affecting the cleaning effect and the utilization rate of the cleaning agents. Utility Model Content
[0003] (I) Purpose of the utility model
[0004] In order to overcome the above shortcomings, the purpose of this utility model is to provide a self-dispensing double-layer dishwashing brush to solve the technical problems of existing dishwashing tools requiring frequent application of detergent, which leads to inconvenience in operation and easy waste or uneven use of detergent.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, the technical solution provided in this application is as follows:
[0007] A self-dispensing double-layer dishwashing brush, characterized in that it comprises: a three-dimensional hollow soft cleaning cover, which is permeable to water and has an opening on its surface; and a soft liquid storage bladder that is inserted into the cleaning cover through the opening, the liquid storage bladder having an injection port for filling the inside with cleaning liquid, and the surface of the liquid storage bladder having multiple capillaries on which the cleaning liquid can seep out to the cleaning cover when pressed.
[0008] This structure, through the nested cooperation of a built-in liquid reservoir and a water-permeable cleaning cover, allows the cleaning solution to seep evenly onto the surface of the cleaning cover through capillary action when squeezed, significantly simplifying the dishwashing process. Users do not need to repeatedly apply detergent and can complete multiple cleaning tasks continuously, while avoiding waste of cleaning solution; the capillary design ensures a smooth and controllable flow of liquid, preventing excessive seepage at one time, improving cleaning efficiency and product durability.
[0009] In some embodiments, the inlet of the reservoir extends into and is flush with the opening of the cleaning hood, or extends through the opening of the cleaning hood and out of the cleaning hood.
[0010] The two extension designs of the injection port are optimized for different usage scenarios: the flush design keeps the surface of the cleaning hood intact and avoids protrusions interfering with the wiping action; the extended design exposes the injection port for easy positioning and replenishment of cleaning fluid. Both designs ensure that the filling process does not require disassembly of components, balancing operational efficiency and structural stability.
[0011] In some embodiments, the outer surface of the cleaning hood is provided with foaming flaps.
[0012] Foam can enhance the ability to encapsulate and break down oil stains, while reducing direct loss of cleaning solution, improving cleaning efficiency and reducing the amount of cleaning agent consumed per unit.
[0013] In some embodiments, the bubbling flaps are spiral protrusions or mesh protrusions.
[0014] The raised texture of the foaming flaps disturbs the water and cleaning solution during wiping, accelerating air mixing and generating rich foam.
[0015] In some embodiments, capillaries are evenly distributed across the entire surface of the reservoir.
[0016] The evenly distributed pores ensure uniform liquid distribution throughout the cleaning hood, making it suitable for wiping large areas.
[0017] In some embodiments, capillaries are concentrated in the area of the reservoir facing the cleaning hood.
[0018] The concentrated distribution of cleaning solution on the front of the capillaries enhances the supply of cleaning solution to the contact area, improving localized cleaning power for stubborn stains. Precise liquid control reduces waste and extends the usable time of a single injection.
[0019] In some embodiments, the opening of the cleaning cover is provided with a rubber band that can elastically adjust the size of the opening.
[0020] The flexible opening design not only facilitates the insertion of the reservoir into the cleaning cover, but also automatically adjusts its tightness according to the reservoir's inflation status: when the reservoir expands after filling, the rubber band expands to prevent deformation; when the cleaning fluid is depleted and the reservoir contracts, the rubber band tightens to seal the opening and prevent external contaminants from entering. This design simultaneously improves sealing performance, structural adaptability, and service life.
[0021] In some embodiments, the cleaning cover is made of sponge, nonwoven fabric, microfiber cloth, or natural fiber woven material.
[0022] The porous fiber material of the cleaning hood optimizes the diffusion of cleaning fluid and the ability to adsorb dirt, while also improving abrasion resistance.
[0023] In some embodiments, the reservoir is made of silicone, rubber, TPU, or an elastic composite film.
[0024] The elastic material of the reservoir ensures uniform deformation under pressure, promotes stable leakage of cleaning fluid from the capillaries, and automatically rebounds and seals after pressure release, ensuring controllable fluid output.
[0025] In some embodiments, the pore size of the capillaries is 0.1 mm to 0.3 mm.
[0026] The microporous design effectively prevents leakage while maintaining a moderate liquid dispensing rate, eliminating the possibility of cleaning solution leakage before its intended use. Attached Figure Description
[0027] Figure 1 This is a first-view structural schematic diagram of the self-dispensing double-layer dishwashing brush of this utility model;
[0028] Figure 2 This is a second-view structural schematic diagram of the self-dispensing double-layer dishwashing brush of this utility model;
[0029] Figure 3 This is a cross-sectional view of the self-dispensing double-layer dishwashing brush of this utility model;
[0030] Figure 4 This is an exploded view of the self-dispensing double-layer dishwashing brush of this utility model.
[0031] Figure label:
[0032] 1. Cleaning cover; 11. Opening; 2. Liquid reservoir; 201. Injection port; 202. Capillary pore. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0034] This utility model provides a self-dispensing double-layer dishwashing brush, the core of which includes a three-dimensional hollow soft cleaning cover 1 and a built-in soft liquid storage bladder 2. It is worth noting that the cleaning cover 1 must meet water permeability requirements and has a single opening 11 on its surface, through which the liquid storage bladder 2 is completely fitted into the cleaning cover 1. Furthermore, the top of the liquid storage bladder 2 has an injection port 201 for filling with cleaning fluid, which is sealed with a stopper or a cap with internal threads. Multiple capillary pores 202 are distributed on the surface of the bladder. Specifically, when the user squeezes the dishwashing brush, the liquid storage bladder 2 deforms under pressure, causing the cleaning fluid to seep out through the capillary pores 202, and then diffuse through the water-permeable cleaning cover 1 to the wiping surface.
[0035] Based on the aforementioned structure, the injection port 201 of the reservoir 2 and the opening 11 of the cleaning cover 1 form a spatial correspondence. Preferably, the injection port 201 can be designed in two forms: one is to extend into the opening 11 of the cleaning cover 1 and be flush with its end face, thus keeping the outer surface flat and avoiding scratching the tableware; the other is to pass through the opening 11 and be exposed to the outside, thus significantly improving the positioning convenience of the injection operation. Both solutions can complete the replenishment of cleaning fluid without disassembling the components.
[0036] Furthermore, the outer surface of the cleaning cover 1 of this application is provided with a foaming flap structure. In particular, the foaming flap is preferably a spiral protrusion or a mesh protrusion. When wiping tableware, the protruding structure disturbs the water flow and generates a vortex effect, forcing the cleaning liquid to mix thoroughly with the air. This not only accelerates foam generation, but also improves the decomposition efficiency by persistently encapsulating oil stains with the foam.
[0037] Regarding the distribution of capillary pores 202, this application has two embodiments.
[0038] First implementation method: The capillary pores 202 uniformly cover the entire surface of the liquid reservoir 2. This design ensures that all areas of the cleaning hood 1 receive liquid simultaneously, making it particularly suitable for cleaning large flat surfaces such as cookware. It is worth noting that the pore spacing needs to be maintained at approximately 2-3 mm (key parameter 2 / 5) to balance the uniformity of liquid output and structural strength.
[0039] In the second embodiment, the capillaries 202 are concentrated in the area of the reservoir 2 facing the cleaning cover 1. Preferably, this dense area covers 60%-70% of the total surface area of the reservoir. This enhances the supply of cleaning fluid to the wiping contact surface, enabling targeted removal of stubborn stains while reducing fluid waste in non-working areas.
[0040] To improve sealing adaptability, a ring-shaped rubber band is embedded around the edge of the opening 11 of the cleaning cover 1. This rubber band is preferably made of latex material with a width of approximately 5 mm (key parameter 4 / 5), and its natural state allows the opening 11 to shrink to its minimum aperture. It is worth noting that when the reservoir 2 is filled and expands, the rubber band elastically expands to accommodate the reservoir; when the cleaning fluid is depleted and the reservoir contracts, the rubber band automatically retracts to close the opening 11, effectively preventing backflow of external oil.
[0041] The choice of material for the cleaning hood 1 directly affects the cleaning effect. A hydrophilic sponge with fibers approximately 20μm in diameter can be used; alternatives include non-woven fabric with a weight of 40-60g / ㎡ or microfiber woven fabric. Specifically, all materials must ensure rapid liquid conduction under pressure, while natural fibers (such as wood pulp cotton) offer biodegradable and environmentally friendly options.
[0042] Specifically, the material for the reservoir 2 must possess both elasticity and corrosion resistance. Food-grade silicone is the preferred material, with a Shore hardness controlled between 15A and 25A; alternatives include natural rubber or thermoplastic polyurethane film. Furthermore, the material thickness should ideally be 0.3-0.5 mm to ensure sufficient puncture resistance while maintaining deformation sensitivity.
[0043] The pore size design of the 202 capillary is particularly critical. Testing has verified that the pore size range is strictly limited to 0.1-0.3 mm: below the lower limit results in poor fluid flow, while exceeding the upper limit causes non-pressurized leakage. Specifically, the pore walls need to be polished to reduce flow resistance, thus ensuring a stable per-squeeze exudate volume of 0.05-0.1 ml.
[0044] Specifically, after cleaning the dishes, you can rinse the foam off the cleaning cover 1 directly with clean water. Be careful not to squeeze the liquid reservoir 2 too hard during rinsing to prevent the cleaning solution inside from being squeezed out again. Alternatively, you can remove the cleaning cover 1, clean it thoroughly, and then put it back on the liquid reservoir 2.
[0045] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A self-dispensing, double-layered dishwashing brush, characterized in that, include: A three-dimensional hollow soft cleaning cover (1) is permeable to water and has an opening (11) on its surface; And a soft liquid reservoir (2) that is fitted into the cleaning cover (1) through the opening (11), the liquid reservoir (2) having an injection port (201) for filling the cleaning liquid into it, and the surface of the liquid reservoir (2) having a plurality of capillary pores (202) on which the cleaning liquid can seep out to the cleaning cover (1) when under pressure.
2. The self-dispensing double-layer dishwashing brush according to claim 1, characterized in that, The injection port (201) of the reservoir (2) extends into and is flush with the opening (11) of the cleaning cover (1), or extends out of the cleaning cover (1) through the opening (11).
3. The self-dispensing double-layer dishwashing brush according to claim 1, characterized in that, The outer surface of the cleaning cover (1) is provided with foaming flaps.
4. The self-dispensing double-layer dishwashing brush according to claim 3, characterized in that, The bubbling flaps are spiral protrusions or grid-like protrusions.
5. The self-dispensing double-layer dishwashing brush according to claim 1, characterized in that, The capillaries (202) are evenly distributed on the entire surface of the liquid storage bladder (2).
6. The self-dispensing double-layer dishwashing brush according to claim 1, characterized in that, The capillaries (202) are concentrated in the front area of the reservoir (2) facing the cleaning cover (1).
7. The self-dispensing double-layer dishwashing brush according to claim 2, characterized in that, The cleaning cover (1) has an opening (11) with a rubber band that can elastically adjust the size of the opening (11).
8. The self-dispensing double-layer dishwashing brush according to any one of claims 1 to 7, characterized in that, The cleaning cover (1) is made of sponge, non-woven fabric, microfiber cloth, or natural fiber woven material.
9. The self-dispensing double-layer dishwashing brush according to any one of claims 1 to 7, characterized in that, The reservoir (2) is made of silicone, rubber, TPU, or an elastic composite film.
10. The self-dispensing double-layer dishwashing brush according to claim 1, characterized in that, The pore size of the capillary (202) is 0.1 mm to 0.3 mm.