Company Filing History:
2 out of 447 
1 out of 1 Years Active: 2022-2025
Title: Da Zhang: Innovator in Drilling and Safety Technologies
Introduction
Da Zhang is a prominent inventor based in Jinan, China. He has made significant contributions to the fields of drilling technology and safety apparatuses. With a total of 3 patents to his name, Zhang's work reflects his commitment to innovation and practical solutions.
Latest Patents
One of Zhang's latest inventions is the full-hole reverse circulation cluster-type down-the-hole (DTH) hammer with multiple independent channels. This innovative DTH hammer includes a drill rod, a drill rod joint, a drill rod air pipe, a diversion chamber, at least one hammer, and both upper and lower pressure plates. The design features at least one jet air pipe that communicates with the diversion chamber, along with drill cuttings discharge pipes located near the hammer drill bit. The jet air pipe is equipped with jet holes that create negative pressure, enhancing drilling efficiency.
Another notable patent is the intelligent vehicle capturing apparatus and method for high-pier bridges. This apparatus consists of a double-layer metal protective net, supported by a unit that includes a hydraulic link mechanism. The protective net is mounted on the backside of the high-pier bridge, allowing it to capture vehicles that may be at risk of rushing off the bridge. This innovative safety feature is designed to stop and buffer vehicles effectively.
Career Highlights
Da Zhang has worked with esteemed institutions such as Shandong University and Haozhou Drilling Engineering Machinery Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in his field.
Collaborations
Zhang has collaborated with notable colleagues, including Yechen Zhao and Chengliang Yan. These partnerships have fostered a creative environment that encourages the exchange of ideas and expertise.
Conclusion
Da Zhang's contributions to drilling technology and safety apparatuses demonstrate his innovative spirit and dedication to improving industry standards. His patents reflect a blend of practicality and creativity, making him a noteworthy figure in the field of inventions.