Self-Filling Cleaning Tool with Detachable Liquid Storage Device

The problem

When scrubbing surfaces with a standard brush or sponge, users must stop frequently to pour detergent or spray cleaning solution. This interruption slows down the work, especially on large areas like floors, decks or tiled walls. Carrying a separate bottle while holding a brush is awkward, and manually squeezing liquid onto a sponge often results in uneven coverage or spills. Furthermore, traditional squeeze-bottle brushes lack a reliable way to seal the liquid path when the brush head is detached for rinsing, leading to drips and wasted cleaning agent.

The solution

This patent describes a two-part system where the liquid supply stays docked while the brush detaches for rinsing.

1. A liquid storage device (1) holds a cleaning agent container (3) positioned higher than the brush so gravity assists the flow. It includes a bracket (4) with a liquid filling channel (7).
2. A cleaning device (2) comprises a brush body (5) and a wiper (6), which can be bristles, brush balls or a sponge brush. Inside the brush body is a buffer chamber (8).
3. When the cleaning device is inserted into the bracket, the filling channel aligns with a liquid filling hole (9) on the brush body, connecting to the buffer chamber.
4. A first check valve (52) sits between the filling channel and the buffer chamber. It opens when the brush body is pressed into the bracket or squeezed, and closes when the brush is pulled out, preventing liquid from flowing out of the channel.
5. To dispense, the user operates a pressing portion (32 / 53) on either the liquid storage device or the brush body itself. This forces the agent from the buffer chamber out through liquid spraying holes (61) directed at the wiper.
6. An air pressure relief mechanism (8a) in the buffer chamber and a second air pressure relief mechanism (3a) in the container allow air to enter as liquid leaves, ensuring smooth flow.

Who it is for

• Household cleaning brands looking to add an auto-dispensing scrub brush to their catalog for tile, glass or floor care.
• Janitorial supply wholesalers serving commercial cleaners who need to cover large areas without carrying separate spray bottles.
• Amazon private-label sellers seeking a differentiated cleaning tool with a clear functional advantage over basic sponges.
• Automotive detailing suppliers offering brushes that apply soap or wheel cleaner directly through the bristles during wash routines.

How it works

The main parts

Operating steps

1. Install the container - mount the cleaning agent container onto the bracket using the bayonet or screw thread. If using a sealed refill, the puncturing device pierces it to open the flow path.
2. Dock the brush - insert the cleaning device into the bracket. The positioning device aligns the brush body so the filling channel connects to the buffer chamber through the first check valve.
3. Fill the buffer - press the pressing portion on the storage device or the brush body. Liquid flows down through the filling channel into the buffer chamber, aided by gravity since the container sits higher.
4. Scrub and dispense - use the wiper on the target surface. When more liquid is needed, squeeze the elastic pressing portion again to push agent from the buffer chamber out through the spraying holes onto the wiper.
5. Detach and rinse - pull the brush body out of the bracket. The first check valve closes automatically, keeping remaining liquid inside the channel without leaking. Rinse the wiper under water.

Applications

Bathroom tile and grout

Homeowners scrubbing shower walls need detergent applied evenly without juggling a spray bottle. The self-filling brush dispenses cleaner directly into the bristles, letting the user focus on scrubbing grout lines continuously.

Kitchen countertops and stovetops

Grease removal requires repeated application of degreaser. Pressing the elastic portion on the brush body releases measured amounts of cleaning agent right where the sponge meets the surface, reducing waste and speeding up wipe-downs.

Automotive wheel washing

Detailers cleaning brake dust off wheels benefit from soap flowing through brush balls. The detachable design allows quick rinsing of the brush head between wheels while the liquid storage device remains sealed.

Commercial floor spot-cleaning

Janitors addressing spills in hallways can carry the docked unit or just the filled brush. The buffer chamber holds enough agent for several passes, and the check valve prevents drips when moving between spots.

Outdoor patio furniture

Scrubbing pollen or bird droppings off resin chairs outdoors often lacks a nearby sink. Storing the cleaning solution in the replaceable container means the user brings the supply directly to the furniture.

Where it is less suitable

• Heavy-duty industrial degreasing - high-volume pressure washers are required for thick machinery grease rather than manual buffer-chamber dispensing.
• Delicate electronics cleaning - liquid dispensing near circuitry risks damage; dry or lightly dampened wipes are preferred.
• Continuous mopping of large floors - the buffer chamber capacity is designed for targeted scrubbing, not wide-area wet mopping.