3results about How to "Strong extrusion" patented technology

The application relates to the field of automobile sliding door guide rail manufacturing technology, and discloses a metal material bending device for automobile sliding door guide rails, which comprises a workbench, a first bending mechanism and a second bending mechanism are sequentially arranged on the workbench, the first bending mechanism is used for sequentially bending two first bending segments and two second bending segments by 90 DEG to form a mouth-shaped structure, and the second bending mechanism is used for sequentially bending a third bending segment and a fourth bending segment by 90 DEG to form a Z-shaped structure; a third bending mechanism is further arranged on the workbench; the metal material bending device for automobile sliding door guide rails integrally completes the automobile sliding door guide rail with a local arc-shaped segment through a plurality of bending processes, a seal is formed at the end of the arc-shaped segment through bending, a track tail does not need to be additionally arranged, and a flexible supporting part is arranged in the guide rail to support the inner wall of the steel material in the arc-shaped bending process, so that deformation is avoided.

This utility model discloses a railing device, relating to the field of railing technology. The device includes a post, a crossbar, and a wooden wedge-shaped locking strip. The post has a rectangular groove on its side; the crossbar has an insertion part at its end, with a wedge-shaped groove at its top; the locking strip has a right-angled trapezoidal cross-section and achieves mechanical self-locking by inserting its inclined surface downwards into the wedge-shaped groove. When the locking strip is inserted, its inclined surface presses against the inner wall of the wedge-shaped groove, forcing the insertion part to expand inwards and press against the inner wall of the rectangular groove, forming a horizontal compressive force; simultaneously, the top of the locking strip presses against the upper edge of the rectangular groove, resisting vertical pull-out force. This device uses an all-wood structure, eliminating the risk of corrosion from metal nails and extending its service life; at the same time, the wedge-shaped self-locking structure provides strong resistance to pull-out and impact, preventing loosening, and is suitable for outdoor scenarios such as parks and boardwalks.

The utility model discloses a multilateral arc-shaped double-roller extrusion snow loading device, which belongs to the field of snow removal equipment and comprises a hopper assembly, two U-shaped swing connecting rod assemblies are rotatably arranged on the hopper assembly, arc-shaped rollers are rotatably carried at two ends of the two U-shaped swing connecting rod assemblies respectively, the two U-shaped swing connecting rod assemblies are connected together through a tension spring, and the two U-shaped swing connecting rod assemblies are connected with the tension spring. A feeding port is formed in the middle of the hopper assembly, and the two arc-shaped rollers are arranged on the lower portion of the feeding port and driven by the driving assembly arranged on the hopper assembly to rotate to form extrusion work. According to the utility model, the hopper assembly is matched with the U-shaped swing connecting rod assembly, so that the device is endowed with extremely high feeding adaptability, the U-shaped swing connecting rod assembly can swing flexibly no matter what flow and what angle a snow material enters a feeding port, the snow material is ensured to be rolled into an extrusion area by the arc-shaped rollers, and the snow material is prevented from being extruded by strong extrusion force generated by opposite rotation of the double arc-shaped rollers. Loose snow materials can be rapidly compacted, the snow loading weight of a single vehicle is improved, the overall snow conveying efficiency is effectively improved, and the cost is reduced.