14results about How to "Lightweight" patented technology

The invention discloses a fiber foamed concrete and a preparation method thereof. The fiber foamed concrete comprises the following raw materials in parts by weight: 5290 parts of cement, 4965 parts of water, 1.361 part of foaming solution, 1.2964 part of fly ash and 10 parts of fiber. The preparation method comprises the following steps: proportionally weighing the components; sequentially adding the cement and fly ash into a stirrer, proportionally weighing the water, uniformly stirring the mixture by the stirrer, and adding the fiber; preparing and adding the foaming solution; gradually adding the foam into the mixture, and continuously stirring until all the components are uniformly mixed; pouring the mixture into a mold on which lubricating oil is brushed, and curing in a curing chamber; after 24 hours, removing the mold; and respectively curing for 3 days, 7 days and 28 days for experimental detection. The fiber foamed concrete has the advantages of favorable thermal insulation property, favorable compression resistance and favorable bending resistance, and is applicable to a railway bed strengthening layer.

The utility model relates to a 45-degree oval thoracic cavity curettage spoon, which belongs to the technical field of medical supplies. The utility model discloses handle and harrow hook are connected as an organic whole, the harrow hook includes the harrow hook main part and the spatula who are connected, the spatula is arranged at the front end of the harrow hook main part, the handle is arranged at the rear end of the harrow hook main part, and the spatula adopts oval long groove type design. The utility model has simple and reasonable structure design, is safe and reliable, convenient to operate, can be applied to single-hole and multi-hole thoracoscope, and satisfies the use demand.

The utility model relates to the technical field of downhole geophysical prospecting, specifically a kind of instrument shock absorption type storage device for downhole geophysical prospecting. Including: storage component, the storage component includes box, lid, storage, shock pad and sealing element, the lid rotationally connected on box, storage is set to the inside of box, shock pad is fixedly connected at the bottom of box, the sealing element is set to the outside of box;Protective component, the protective component is set to the inside of box and lid, and protective component includes buffer, foam pad, magic tape, limiting piece and pull rope, buffer is set to the inside of storage, foam pad is set to the inside of box and lid, magic tape is set to the outside of foam pad, limiting piece and pull rope are all set to the outside of buffer. The utility model can avoid that instrument is extruded harm, utilizes lining bushing and is wrapped with instrument protection, can reduce the impact force from each direction, improves the protection effect to instrument.

This invention relates to the field of integrated circuit manufacturing, specifically disclosing a semiconductor photoelectric level sensor, its fabrication method, and its application. The sensor is a sheet-like structure comprising: a substrate including multiple photodiodes evenly distributed on a ring with a first circular axis perpendicular to the substrate as its axis of symmetry; a circular cavity located on the substrate, perpendicularly corresponding to the ring formed by the multiple photodiodes, and containing a rollable microgravity sphere; and a first signal light guide located on the circular cavity, also circular in shape and perpendicularly corresponding to the cavity, for vertically guiding actively irradiated circular signal light into the cavity. This invention utilizes the lowest point of the circular cavity where the rollable microgravity sphere can freely roll under gravity, and simultaneously guides actively irradiated circular signal light vertically into the cavity, with the multiple photodiodes accurately sensing the precise angular position of the rollable microgravity sphere.

This application discloses a defect processing method, a defect processing device, an electronic device, and a server, belonging to the field of electronic device technology. The method on the first electronic device side includes: when a first operational anomaly event occurs, the first electronic device sends first defect data to a cloud server; the first defect data includes defect data of the first operational anomaly event collected by the first electronic device through pre-embedded points; the first electronic device receives a first Berkeley Data Packet Filter (BPF) program and a first path sent by the cloud server; the first path includes the critical path of the first operational anomaly event; the first electronic device mounts the first BPF program to the first path; when the first electronic device runs on the first path, it triggers the execution of the first BPF program, and collects second defect data of the first operational anomaly event through the first BPF program.

This invention relates to the field of locomotive welding technology, specifically disclosing a positioning device and method for welding locomotive roofs. The positioning device for locomotive roof welding includes: a traveling trolley, a main lifting mechanism, a linkage clamping mechanism, and an arc-shaped rod clamping mechanism; the main lifting mechanism includes a main lifting drive and a lifting seat, with the output end of the main lifting drive connected to the lifting seat; the linkage clamping mechanism includes a horizontal drive and two linkage clamping members spaced apart along a first horizontal direction, the linkage clamping members being used to clamp roof connecting rods; the arc-shaped rod clamping mechanism includes an arc-shaped rod lifting drive and an arc-shaped rod clamping member, the arc-shaped rod clamping member being used to clamp the arc-shaped rod of the roof. The positioning method for locomotive roof welding is accomplished using the above-mentioned positioning device. The positioning device and method for locomotive roof welding can solve the problems of poor flexibility, poor positioning accuracy, and simple clamping fixture structure existing in the positioning mode of existing locomotive roof welding.

The application relates to the technical field of beam structures, in particular to a beam structure which comprises a beam main body and connecting bases, the number of the connecting bases is two, the two connecting bases are symmetrically arranged at two ends of the beam main body, and a butt joint mechanism is arranged between the connecting bases and the beam, the beam main body comprises an outer shell, longitudinal ribs, plate ribs and inclined ribs, the surface of the beam main body is provided with a track structure, the two ends of the inclined ribs are respectively connected with one side of the inner top wall of the outer shell and the inner bottom of one side, the surface of the outer shell is provided with a track and other protruding structures, therefore, the inclined ribs in the beam can realize internal diagonal line connection of the outer shell with the shortest length, the weight of the beam structure is reduced while the strength of the outer shell is improved, and the beam structure can realize minimum weight on the premise of guaranteeing overall strength through the arrangement of the longitudinal ribs, the plate ribs and the reinforcing ribs, so that light weight and high rigidity are considered.

A deep learning-based method for reconstructing the two-dimensional vector vibration direction of a multi-core optical fiber includes: constructing simulated noise-free data; selecting the same multi-core fiber grating sensor as the simulation, providing the same two-dimensional vibration excitation parameters as the simulation, and collecting measured sensor data; preprocessing the measured sensor dataset to achieve standardized alignment between the measured data and the simulation data; constructing a deep learning model for two-dimensional vibration direction reconstruction; optimizing the deep learning model through a phased training and transfer learning strategy; and reconstructing the two-dimensional vector vibration direction based on the trained deep learning model. This invention automatically extracts complex temporal features from wavelength drift signals by constructing a deep learning model, learns the temporal variation patterns and inter-channel coupling relationships in the signal, effectively mining vibration direction-related information, and overcomes the limitations of traditional geometric models that rely on the assumption of an ideal optical fiber structure, significantly improving the accuracy and precision of vibration direction reconstruction.

The utility model provides a general surgery tool disinfection device belongs to medical instrument disinfection technical field. Including disinfection box, upper cover and placing frame, the upper surface of upper cover has the handle, the upper surface of disinfection box is open setting, the open place is closed to upper cover, and the bottom end surface of upper cover is provided with two groups of vertical rods, two groups of vertical rods are equipped with multilayer placing frame between, and multilayer placing frame is detachably connected with vertical rod, and the surface of vertical rod towards placing frame has installation slot, and the sidewall of placing frame is provided with sliding block, and sliding block and installation slot are matched and inlayed. The utility model discloses through setting placing frame, vertical rod, can carry out quick collection to surgical tool, and disinfect, and the surgical tool is soaked and disinfected, after disinfection, pulls the handle, and placing frame rises, and placing frame can be fixed in midair, and the bottom of placing frame is equipped with screen cloth, can the surgical tool is dewatered, and it is more convenient to use in emergency rescue, field medical aid or remote medical service.

This invention discloses a method and apparatus for detoxifying large language models based on Euclidean flow matching, belonging to the field of artificial intelligence. To better balance detoxification effect and generation quality, this invention extracts features from the LLM output using a sparse autoencoder, performs detoxification transformation based on Euclidean flow matching, and finally replaces the original input activation, guiding the LLM to generate non-toxic content. This invention, applied to the field of large language models, can efficiently detoxify LLMs without significantly sacrificing fluency.

This invention discloses a method for forming a large aspect ratio sand core mold, comprising the following steps: (1) Tooling design: designing the diameter and length of the solid mandrel according to the product opening size and the self-weight of the core mold; (2) Machining: machining a set of metal parts according to the design drawings; (3) Sand cake making: preparing polyvinyl alcohol water-soluble sand cake using water-soluble quartz sand / hollow glass microspheres as filler; (4) Core mold assembly: installing the flat-end sand cake in a vertical manner; (5) Core mold machining: machining the outer core surface of the core mold according to the inner shape of the product. The large aspect ratio sand core mold produced by this invention has the characteristics of high strength, lightweight, and simple manufacturing process, avoiding the risk of core mold surface breakage caused by mandrel deflection deformation, and is suitable for the production of large aspect ratio shells.

The utility model discloses a novel prefabricated high-strength combined guardrail structure for a bridge. A prefabricated concrete base unit is used for being connected with a bridge panel and fixing a steel structure guardrail unit; a wet joint notch is formed in the bottom face of one side of a head-on collision face of each prefabricated concrete base unit, annular steel bars are arranged in the wet joint notches, U-shaped steel bars are arranged on a bridge face plate, and the adjacent annular steel bars are connected through longitudinal steel bars in a binding mode. The annular reinforcing steel bars and the U-shaped reinforcing steel bars are oppositely staggered, U-shaped openings of the U-shaped reinforcing steel bars are provided with hooks, transverse sealing reinforcing steel bars are arranged between the hooks of the U-shaped reinforcing steel bars, and the transverse sealing reinforcing steel bars and the longitudinal reinforcing steel bars are arranged in an intersecting mode. According to the scheme, on one hand, the prefabricated concrete base unit is connected with the bridge panel through the cement mortar cushion layer, on the other hand, the open-type wet joint notches are formed, connection between the prefabricated concrete base unit and the bridge panel is enhanced through the UHPC grouted in the notches and the steel bars arranged in the staggered mode, the construction quality is effectively guaranteed, and the construction difficulty is reduced; and the quality of the prefabricated guardrail is effectively improved.

This utility model relates to the field of drainage pipe technology, specifically to a hydraulic drainage pipe with a buffer function. It includes a drainage pipe comprising a first pipe and a second pipe horizontally fixedly connected at their ends; and a buffer assembly, which includes an annular plate disposed on the outer side of the second pipe, the diameter of which is larger than the diameter of the second pipe. Multiple mounting plates are disposed on the inner side of the annular plate, and buffer springs are fixedly connected to each of the mounting plates and the annular plate. The variable diameter design, the buffer assembly, and the synergistic effect of the foam layer effectively reduce the impact and wear of water flow on the pipe. The buffer assembly reduces the direct damage to the pipe from the impact force, and the foam layer reduces the wear of the pipe's inner wall caused by water flow scouring. These multiple protective measures together extend the overall service life of the pipe, ensuring stable and efficient operation, effectively mitigating water flow impact, reducing noise, and extending the pipe's service life.

The utility model provides a kind of air cooling integration eVTOL electric propeller, including fairing and the coaxial arrangement of motor assembly and cooling fan covered by the fairing;Motor assembly includes the front end cap, rotor assembly and rear end cap that are coaxially distributed in turn, and motor controller is arranged between rotor assembly and front end cap;Front end cap, rotor assembly and rear end cap are all provided with the ventilation passage that is axially through;Cooling fan is set between front end cap and the fairing, and cooling fan has coaxial independent inner ring blade group and outer ring blade group;Cooling fan rotation makes that inner ring blade group, outer ring blade group generates axial negative pressure to inhale airflow respectively into inner ring flow channel and outer ring flow channel;Wherein, from front end cap to rotor assembly along the direction of ventilation passage forms inner ring flow channel;The gap of fairing and motor assembly forms outer ring flow channel. Realize under the premise of pure air cooling heat dissipation, effectively improve the heat dissipation efficiency and give consideration to system light weight.