A scraper

By designing scrapers supported by multi-arc edges and elastic parts, the existing scrapers have poor effect in cleaning concave and convex surfaces and complex blade replacement problems, achieving more efficient cleaning effects and a more convenient blade replacement process.

CN111589740BActive Publication Date: 2025-03-21HANGZHOU UNITED TOOLS CO LTD +1
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Patent Information

Application Number
CN201910127875.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-02-20
Publication Date
2025-03-21
Estimated Expiration
2039-02-20

AI Technical Summary

Technical Problem

Existing scrapers are poor in cleaning uneven surfaces, and replacing the blade requires the compression rod to be completely removed, adding complexity.

Method used

A scraper is designed with a multi-arc edge of the blade, which allows the blade to be replaced without completely removing the compression rod. Quick replacement and fixation of the blade is achieved by setting a disassembly and positioning hole on the blade, and setting bumps and elastics on the handle.

Benefits of technology

The scraper can effectively clean uneven surfaces, and does not need to completely remove the compression rod when replacing the blade, simplifying the operation process and improving the convenience of use.

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Abstract

The present invention discloses a scraper, wherein the blade has at least one cutting edge, at least one of the cutting edges is a multi-arc-segment cutting edge, and the multi-arc-segment cutting edge is a cutting edge with a variable diameter. The present invention designs the cutting edge of the blade to be a multi-arc-segment cutting edge, thereby overcoming the problem that the plane cutting edge in the prior art cannot be operated in uneven places, and the design of the multi-arc-segment cutting edge broadens the application range of the single arc-surface cutting edge, thereby achieving a better cleaning effect.
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