Yankuang Energy Granted Invention Patent: "Material-saving Compression Tool for Blocking Pressure Relief Holes and Method for Sealing Pressure Relief Holes"

According to Securities Star news, data from the Tianyancha APP shows that Yancoal Energy (600188) has recently obtained a new invention patent authorization. The patent is titled “Material-Saving Compaction Combination Tool for Blocking Pressure Relief Holes and Its Method for Blocking Pressure Relief Holes,” with the application number CN202311013313.6, and the authorization date is March 20, 2026.

Patent Abstract: The invention relates to a material-saving compaction combination tool for blocking pressure relief holes. To fill the gap in existing technology, this material-saving compaction combination tool for blocking pressure relief holes includes a feeding shovel and a feeding rod. The feeding shovel includes an insertion tube and an outer shovel connected to the insertion tube. The insertion tube can be inserted into the pressure relief hole to be blocked. The feeding rod includes a long rod and a push plate, with the push plate fixed at the front end of the long rod. The push plate can push the sealing material into the pressure relief hole, characterized in that it also includes an elastic sealing component and a hollow tube. The hollow tube can be inserted into the pressure relief hole, and the elastic sealing component has an elastic clamping part that can be inserted into the hollow tube and can be pushed out of the hollow tube. When the elastic sealing component is detached from the hollow tube, the elastic clamping part on the elastic sealing component is clamped against the wall of the pressure relief hole under the action of elasticity. The invention has a simple structure, can save sealing material, and is convenient for compaction, making it suitable for blocking pressure relief holes in coal mines.

Since the beginning of this year, Yancoal Energy has obtained 136 patent authorizations, an increase of 97.1% compared to the same period last year. According to the company’s 2025 annual financial report data, the company invested 3.398 billion yuan in research and development in 2025, a year-on-year decrease of 2.89%.

Through big data analysis from Tianyancha, Yancoal Energy Group Co., Ltd. has invested in a total of 60 enterprises and participated in 25,795 bidding projects; in terms of property clues, there are 294 trademark information entries, 2,526 patent information entries, and 78 copyright information entries; in addition, the enterprise also holds 49 administrative licenses.

Data source: Tianyancha APP

The above content is organized by Securities Star based on public information and generated by AI algorithms (Internet Information Record No. 310104345710301240019), and does not constitute investment advice.