Patent CN115039716B
Updated November 2, 2026Pet Hair-Sucking Brush Head with Self-Cleaning Scraper for Vacuum Cleaners
Standard pet brushes clog with fur, requiring constant manual removal that interrupts grooming sessions. This vacuum-mounted brush head uses a dual-arc mechanism where a scraping plate rotates against the brush plate. During use, tilting the tool lifts one side of the scraper to release bristles into the coat while pressing the opposite side scrapes accumulated hair directly into the vacuum's suction path. It enables continuous grooming without stopping to clean the tool.
- China invention patent - active
- No filings outside China
- Pet grooming & vacuum accessories
- Rotating scraper mechanism, arc-shaped plates

Splat! What let you down?
🐕
Continuous Grooming
The scraper removes hair as you brush, so you do not stop to pick fur off the bristles.
🔄
Dual-Arc Mechanism
An arc-shaped brush and matching scraper rotate together to lift and clear hair automatically.
💨
Direct Suction
Scraped hair falls directly into the central suction port for immediate removal.
🛠️
Universal Fit Potential
Designed to attach to standard vacuum hoses; custom adapters can be molded for specific brands.
Bring this product to market
- ✓ Patent vetted China-only family and legal status checked
- 2 Product brief · now How it works, uses and options written up
- 3 Prototype First samples for buyers to review
- 4 Pilot run Small first batch for launch customers
- 5 Volume production Repeat orders at scale
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The problem
Pet owners who groom their animals often face two main issues: loose hair scattering across the floor and traditional brushes becoming jammed with wrapped fur. When using a regular brush, the operator must frequently pause to pull hair out of the bristles, which disrupts the flow of grooming and leaves hair on the surface. While some vacuum attachments exist, they typically lack a self-cleaning feature, meaning hair still accumulates inside the nozzle or on the brush head, reducing suction efficiency and requiring manual disassembly for cleaning. There is a need for a tool that integrates grooming and cleanup into a single, uninterrupted motion.
The solution
This patent describes a brush head assembly designed to mount onto a vacuum cleaner’s suction end. The core innovation lies in the interaction between two curved components: a brush plate and a scraping plate.
- The brush plate is arc-shaped and contains the bristles. It has a central suction port.
- The scraping plate is also arc-shaped, matching the curvature of the brush plate. It features a grid structure that allows bristles to pass through when lifted.
- These two plates are connected by a clamping groove module. This module includes side-end fixing grooves and a middle arc-shaped clamping groove. The connection allows the scraping plate to rotate or pivot relative to the brush plate.
- When the user tilts the handle during grooming, one end of the scraping plate presses down while the other lifts up. This action exposes the bristles to comb the pet’s fur on the lifting side, while simultaneously scraping any hair wrapped around the bristles on the pressing side.
- The scraped hair is directed toward the central suction port, where the vacuum airflow pulls it away from the tool and into the vacuum bag or container.

Who it is for
- Vacuum Accessory Brands: Companies looking to expand their pet-care line with a functional attachment that differentiates from basic crevice tools.
- Pet Supply Retailers: Sellers needing a high-margin accessory that solves a common pain point (hair tangles) for dog and cat owners.
- OEM Manufacturers: Factories specializing in plastic injection molding and small appliance parts who want to produce private-label versions of this design.
- Grooming Service Providers: Professional groomers who need efficient tools to reduce time spent cleaning equipment between clients.
How it works
The main parts
| No. | Part | What it does |
|---|---|---|
| 1 | Brush Head Assembly | The main body connecting to the vacuum hose. |
| 11 | Suction End | Interface where the brush attaches to the vacuum. |
| 12 | Brush Plate | Arc-shaped plate holding the bristles and central suction port. |
| 13 | Handle | Grip for the user to hold and tilt the tool. |
| 2 | Hair Removal Assembly | The mechanism that clears the brush. |
| 21 | Scraping Plate | Arc-shaped plate with a grid; rotates against the brush plate to scrape hair. |
| 3 | Clamping Groove Module | Connects the brush and scraper, allowing rotational movement. |
| 31 | Side End Fixing Clamps | Secure the ends of the joint. |
| 32 | Middle Arc Clamp | Allows the scraper to pivot around the suction port area. |

Operating Steps
- Mount: Attach the brush head assembly to the vacuum cleaner’s hose.
- Contact: Place the brush plate against the pet’s fur.
- Tilt and Comb: Tilt the handle so one end of the scraping plate lifts up. This exposes the bristles to comb through the fur.
- Scrape and Suck: As the tool moves along the body, the opposite end of the scraping plate presses down. This action pushes hair wrapped around the bristles off the brush and into the open suction port.
- Repeat: Continue the stroking motion. The alternating lift-and-press action keeps the brush clear of hair throughout the session.

Applications
Daily Home Grooming
Owners of long-haired dogs or cats can groom their pets quickly without stopping to remove hair from the brush. The vacuum captures the shed fur immediately, keeping the room clean.
Shedding Season Cleanup
During heavy shedding periods, this tool helps manage large volumes of loose hair. By sucking up the hair as it is combed out, it prevents the brush from clogging and reduces the amount of fur left on furniture or floors.
Professional Grooming Stations
Groomers can use this attachment to speed up the de-shedding process before bathing or trimming. It reduces the time spent manually cleaning brushes between different animals, improving workflow efficiency.
Allergy Management
For households with allergy sufferers, removing hair directly into a sealed vacuum system minimizes airborne dander and fur compared to dry brushing. It provides a more contained grooming experience.
Where it is less suitable
- Short-Haired Breeds: Pets with very short fur may not generate enough loose hair to justify the complexity of the self-cleaning mechanism; simple rubber curry brushes may suffice.
- Non-Vacuum Use: This device relies entirely on vacuum suction to function correctly. It cannot be used as a standalone brush if the vacuum is not running or if the hose connection is poor.
- Very Fine Dust: While effective for hair, the grid structure might allow fine dust or sand to pass through into the vacuum filter, potentially requiring more frequent filter maintenance depending on the vacuum model.
Frequently asked questions
How does the self-cleaning action work?
The brush and scraper plates are both arc-shaped and connected by a pivot. When you tilt the handle while brushing, one side of the scraper lifts up to let the bristles comb the fur, while the other side presses down. This pressing action strips any hair wrapped around the bristles and directs it into the vacuum’s suction port, clearing the brush instantly.
Will it fit my vacuum cleaner?
The patent describes a generic suction end interface. To fit specific vacuums (like Dyson, Shark, or Bissell), we need to manufacture custom adapters or modify the mounting clip. Please provide the make and model of your target vacuum so we can design the correct connector.
Can it handle all types of pet hair?
It is designed for loose hair and undercoat shedding. The grid size on the scraper determines what gets caught. For very short, stiff hair, the scraping action may be less effective than for long, flowing fur. We can adjust the grid density in the mold design based on your primary target animal.
Is the plastic durable enough for daily use?
The structural integrity depends on the material choice (typically ABS or Nylon) and wall thickness. The rotating joint is the stress point. Prototypes undergo cycle testing to ensure the clamping groove does not wear out prematurely. Specific durability ratings are confirmed on prototypes.
Does it require batteries or power?
No. This is a purely mechanical attachment that relies on the suction power of the vacuum cleaner. There are no motors, electronics, or batteries in the brush head itself.
Can this design be made and sold in the US?
The patent is active in China but has no US counterpart. Therefore, this specific Chinese patent does not block sales in the US. However, other companies may hold US patents on similar vacuum attachments or pet grooming mechanisms. We strongly recommend a freedom-to-operate search before launching a branded product to avoid potential litigation.
Are you affiliated with the patent owner?
No. IP2M is an independent design and manufacturing service working from the public patent document. We are not licensed by Shenzhen Yinshe Intelligent Technology Co ltd.
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Helpful details to include:
- Your company and channel (vacuum brand, pet supply retailer, Amazon seller)
- Target vacuum models (for adapter design)
- Material preferences (ABS, PP, bristle type)
- Estimated quantity and target price
- Timeline - when you would like samples and the first shipment
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This page is based on the public patent document CN115039716B, assigned to Shenzhen Yinshe Intelligent Technology Co ltd. IP2M is an independent manufacturing service and is not affiliated with, endorsed by or licensed by the patent owner. Images marked as concept renderings are illustrations, not photos of an existing product. Patent status information is provided for reference only and is not legal advice; confirm freedom to operate for your market before production. Full disclaimer.