5results about How to "Avoid squishing" patented technology

The utility model relates to the technical field of cables, and discloses an anti-bending flexible cable which comprises a shielding layer, a filling layer is arranged on the inner wall of the shielding layer, a flame-retardant assembly is arranged in the filling layer, a first supporting assembly is arranged on the outer side of the flame-retardant assembly, an inner core is fixedly connected in the supporting assembly, and a second supporting assembly is arranged in the inner core. A second supporting assembly is arranged on the outer side of the shielding layer, an anti-bending layer is fixedly connected to the outer side of the supporting assembly, a sheath layer is fixedly connected to the outer side of the anti-bending layer, the flame-retardant assembly comprises a plurality of filling sleeves, the outer sides of the filling sleeves are arranged on the outer side of the filling layer, and flame-retardant powder is arranged in the filling sleeves. According to the utility model, through the ammonium polyphosphate flame-retardant powder in the plurality of filling sleeves, flame is prevented from further spreading towards the inside of the cable, and the transmission of heat to an unburned part can be reduced, so that the flame-retardant effect is achieved, the safety of the cable and the surrounding environment is protected, and the fire is prevented from spreading due to the combustion of the cable.

The utility model relates to the technical field of rubber pipelines, and discloses a compression-resistant rubber pipeline which comprises a pipeline assembly, a connecting assembly is installed on one side of the pipeline assembly, and by arranging the pipeline assembly and the connecting assembly, mutual supporting and common pressure bearing of all layers are facilitated, burden of a single-layer structure is reduced, external pressure borne by the pipeline is evenly dispersed, and the service life of the pipeline is prolonged. The pipeline is prevented from being flattened or broken in a high-pressure environment, the compression resistance of the pipeline is remarkably improved, and the pipeline can bear higher pressure, so that the service life of the pipeline is prolonged, and the material fatigue and damage risk caused by the long-term pressure effect is reduced; by arranging the pipeline assembly and the connecting assembly, construction personnel can greatly shorten the installation time, improve the construction efficiency and reduce the influence time on production and life caused by the installation operation by means of the rapid connection characteristic of the pipeline assembly and the connecting assembly.

The utility model relates to a connecting clamping piece for a steel wire net rack insulation board, which comprises a net piece limiting plate and a connecting rod with a hollow structure, one end of the connecting rod is provided with a driving head through the limiting plate, the other end of the connecting rod is provided with a convex structure, and the driving head is provided with a placing groove extending along the axial direction; an L-shaped reinforcing rod is arranged in the connecting rod, the long rod part of the reinforcing rod penetrates into the connecting rod from the driving head, the end part of the reinforcing rod protrudes out of the convex structure, the short rod part of the reinforcing rod is clamped in the placing groove, and the part, protruding out of the placing groove, of the reinforcing rod is fixedly bound with parallel transverse steel bars or longitudinal steel wires on the steel wire mesh; v-shaped grooves used for clamping transverse steel wires or longitudinal steel bars on the steel wire mesh are formed in the two sides of the mesh limiting plate, and fixing holes used for allowing the connecting rods to penetrate through are formed in the mesh limiting plate. According to the utility model, the tying performance among the connecting rod, the insulation board, the steel wire mesh and the concrete is ensured, and the strength of a built wall body is improved.

This utility model provides a water conservancy pipeline for water conservancy projects, including a main structure and an inner support structure. The main structure includes an outer tube and an inner tube, with the inner tube located inside the outer tube. The outer wall of the inner tube is integrally formed with a spiral groove. The inner support structure includes a fixing ring and an inner support tube, which is located between the outer and inner tubes and sleeved on the outside of the inner tube. The outer side of the inner support tube is integrally formed with a honeycomb groove, and a rubber sleeve is fixedly connected inside the inner support tube. The inner side of the rubber sleeve is integrally formed with a spiral strip. This utility model, by setting a double-layer tube structure and setting an inner support tube with a honeycomb groove between the outer and inner tubes, allows the hexagonal arrangement of the honeycomb structure to evenly disperse external impact force when under stress. Energy is absorbed through the elastic deformation of the unit walls, thereby enhancing the pressure resistance of the water conservancy pipeline while maintaining its lightweight design.

This invention belongs to the field of additive manufacturing technology, and particularly relates to a filament feeding device and a 3D printer. The device includes a main body with a fixed disk and a rotating turntable. The fixed disk has a drive roller and two straight grooves, while the turntable has two inclined grooves. A sliding block is slidably connected to both the straight and inclined grooves, and a driven roller is mounted on the sliding block. The turntable is connected to a worm gear drive mechanism. The drive roller and the two driven rollers together form a three-point support and clamping structure for the filament. The rotation of the turntable drives the two driven rollers to move radially synchronously, adapting to filaments of different diameters. A ring-shaped PTC heating device is provided at the filament outlet for continuous online drying of the filament. This invention achieves stable filament feeding through a three-point clamping structure, avoiding filament damage and deformation. It also integrates a synchronous drying function, effectively solving the problem of moisture absorption in the printing filament. It has the advantages of stable clamping, strong adaptability, and good drying effect.