Cement-wood composite screw wherein the cement is anchored to the wood by the screw to achieve a high rigidity and high strength composite structure

• Main Author: SHI, YI-JIE
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2024
• Subjects: BLASTING; COMBINED OPERATIONS; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; UNIVERSAL MACHINE TOOLS; WEAPONS

The invention provides a cement-wood composite screw, which mainly includes a screw head, a screw rod, a first screw thread, a plurality of first anchoring screw threads and a plurality of second anchoring screw threads. The screw head extends along the axial direction to form the screw rod, so that the screw rod sequentially forms an anchoring section, a connecting section, a first screw thread section and a screw tip section, and has the first anchoring screw threads and the second anchoring screw threads protruding in staggered manner on the anchoring section in sequence, and the first screw thread section and the screw tip section are protruded with first screw thread, wherein the first screw thread section is locked to the wood, and then the cement covers the cement-wood composite screw. Accordingly, the first anchoring screw threads and the second anchoring screw threads will increase the effectiveness of cement anchoring to the wood, and have advantages of the bending resistance of the wood and the com