4results about How to "Prevent tear damage" patented technology

The tool comprises a base, a product positioning plate, an injection molding product, a positioning and clamping mechanism and an automatic cutting assembly, the base comprises a bottom plate and side plates, the side plates are symmetrically installed on the two sides of the bottom plate, the automatic cutting assembly is arranged in the middle of the interior of the bottom plate, the product positioning plate can correspondingly cover the two side plates, and the product positioning plate can correspondingly cover the two side plates. The product positioning plate is parallel to the bottom plate, a cutting window opposite to the automatic cutting assembly is arranged in the middle of the product positioning plate, product containing areas are arranged on the two sides of the cutting window, the two sheet-shaped injection molding products are connected through a sprue material, the two injection molding products are correspondingly placed in the product containing areas on the two sides, and the sprue material is aligned with the cutting window. The positioning and clamping mechanism abuts against the two injection molding products from the upper portion, and the automatic cutting assembly penetrates through the cutting window to conduct automatic stamping and cutting on the connecting points of the sprue materials and the injection molding products. The tool is low in manufacturing cost, easy to operate, smooth in notch and capable of preventing products from being damaged by stress concentration.

This utility model provides a scraping mechanism for a belt conveyor, relating to the field of belt conveyor technology. It includes a support frame, with a conveyor belt installed on the inner side of the support frame. A scraping and cleaning assembly is located on the lower side of the conveyor belt. The scraping and cleaning assembly includes a support plate installed on the right end of the support frame, a support spring on the upper side of the support plate, a scraper mounted on the top of the support spring, a cleaning frame on the left side of the support plate, a high-pressure nozzle installed inside the cleaning frame, and a cleaning water tank on the lower side of the cleaning frame. When the conveyor belt is running, the material adhering to the conveyor belt is scraped off by the scraper, ensuring the cleanliness of the conveyor belt. When encountering material that is too tightly adhered to be easily scraped off, the arc-shaped structure at the top of the scraper will be stressed, causing the support spring to contract downwards, thereby driving the scraper downwards and preventing excessive rigid contact that could cause tearing or damage to the conveyor belt.

The application discloses a kind of multi-channel independent partition active drainage tube, belong to medical instrument technical field.Drainage tube includes catheter main body, intra-abdominal bifurcated portion, abdominal cavity outside bifurcated portion, drop flushing component, negative pressure drainage component and shunt controller.Intra-abdominal bifurcated portion includes four branch pipes of coaxial double-cannula structure;Four independent longitudinal channels are arranged in catheter main body, four intra-abdominal branch pipes and four extracorporeal branch pipes are communicated one by one and isolated from each other respectively.The application realizes "one pipe four areas" and accurate partition control, and medical staff can intuitively monitor the state of each partition through the pressure indicator of shunt controller, and manually intervene when necessary by operating independent regulating valve and drop flushing component, to realize active flushing suction and online backwashing to prevent blockage.The application can effectively prevent and treat multiple anastomotic fistula after complex operation, avoid the risk of pressure or pipe blockage between different areas, and reduce the rate of secondary operation.

This utility model proposes an integral inclined laying and fixing structure of composite geomembrane between the dam body and the dam-penetrating structure, belonging to the field of water conservancy engineering technology. It mainly includes a reservoir connecting section culvert structure one, a reservoir connecting section culvert structure two, anchor bolts, nuts, stainless steel pressure plates, neoprene rubber gaskets, and composite geomembrane. The connection between the composite geomembrane on the dam slope and the structure adopts an anchoring + weight connection method. Before laying the membrane, it is ensured that the upstream slope of the dam and the upstream of the outlet structure two are on the same slope. Only two layers of geomembrane are laid at the bottom plate of the outlet structure two. Before laying the membrane, it is ensured that the upstream slope of the dam and the outlet of the outlet culvert are on the same slope. The geomembrane is laid flat, so that the geomembrane is in a stable stress state and avoids tearing and damage.