Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

245results about How to "Prevent being" patented technology

Process for manufacturing steel spoke

The invention relates to a manufacturing technique of a steel wheel rib, which adopts cylinder stock to replace the traditional sheet. The manufacturing technique adopts the technique steps that: the cylinder stock is prepared; the cylinder stock is rolled on a roll forming machine to form a cup in-process material with symmetric axial direction, big diameter at two ends and small diameter at a middle groove; the cup in-process material is cut off at the centre to form two same bowl in-process materials; the bottoms of the bowl in-process materials on a spinning machine are spin-formed to a plane, so as to ensure the whole workpiece to be a bowl intermediate product; a central technique hole is punched; a transition curved segment and a tangential path are spun; a central hole/a bolt hole and a wind-punching hole are punched; the lathe work includes central hole processing/a plane/an excircle/an end plane mounting, letter pressing and other working procedures. The cylinder stock can be directly prepared with a steel pipe, and also with a steel belt circle/welding technology. Compared with the traditional manufacturing technique, the manufacturing technique for the steel wheel rib can avoid the steel plate at the periphery of blanking disc type stock from wasting material, and reduce the waste material generated from the pre-punching central hole working procedure, thereby greatly improving the utilization ratio of the material.
Owner:JIAXING STONE WHEEL

Method for rapidly preparing inorganic fiber-enhanced ceramic composite material

The invention belongs to the technical field of inorganic non metal, and concretely relates to a method for rapidly preparing an inorganic fiber-enhanced ceramic composite material. The method comprises the following steps: ceramic powder, inorganic fiber, a dispersant and deionized water are uniformly mixed through ball milling, the uniform ceramic slurry with negative electricity is on the surface of ceramic powder particles; a curing agent containing high-valence counter ions is added and is subjected to ball milling; an esters pH conditioning agent is added in the obtained slurry; then the material is stirred under vacuum condition and is degassed, the material is slowly injected into a nonporous die, then is demoulded through water-bath heating to obtain a wet blank, the wet blank is dried to the dried blank; and the ceramic composite material is obtained through sintering. According to the prepared inorganic fiber-enhanced ceramic composite material, compared with the ceramic without inorganic fiber, the bending strength at room temperature is increased by about 30%, the ceramic composite material is uniform and consistent, the time required by the method is short, an organic matter is not required for being added, rubber discharge is not required, and the ceramic composite material having complex shape is obtained.
Owner:HUAZHONG UNIV OF SCI & TECH +2

Partial on demand cluster head replacement method for wireless sensor network clustered routing

The present invention discloses a method for replacing partial required cluster-head of cluster-based routing of wireless sensor network. Through the method, the cluster-head replacing in the cluster-based hierarchy-type routing in the wireless sensor network can be realized. Furthermore the problems such as energy consumption of normal whole network cluster changing are reduced through the partial required cluster-head replacing. The technical scheme adopted by the invention is that the data package transmission of cluster-head is monitored all the time by the non-cluster-head node in the cluster thereby estimating the residual energy of the cluster head. An cluster application is initialized according to the magnitude relationship between the estimated cluster-head residual energy and the self energy of non-cluster-head node thereby realizing partial required cluster-head replacing. The cluster-head replacement according to the invention uses cluster as a unit. The conditions whether each cluster should replace the cluster, when to change the cluster and which new node is selected for the cluster head are all independent from each other, thereby reducing the energy consumption when the whole network is changed with cluster timely, and obtaining an energy equalization of the whole network.
Owner:BEIHANG UNIV

Closestool capable of conducting air exhaust deodorization and vacuum-assisted flushing

InactiveCN103615039ADoes not increase the use of bathroom spaceAchieve exhaust and deodorizationFlushing devicesBathroom coversDaily livingVacuum assisted
The invention provides a closestool capable of conducting air exhaust deodorization and vacuum-assisted flushing, and belongs to the technical field of daily living articles. The closestool is improved on the basis of a traditional closestool so that the disadvantages and the defects in the prior art in terms of the closestool deodorization technology and the vacuum-assisted flushing can be overcome, and a double-layer air exhaust fan serves as a power source for an air exhaust deodorization system of the whole closestool and a vacuum-assisted flushing system of the whole closestool. The air exhaust deodorization technology which saves energy and is environmentally friendly is provided for air exhaust deodorization of the closestool. Flushing is assisted by vacuum so that water resources can be saved. An existing air exhaust device in a toilet is improved and combined with the closestool to form a set of system, namely, the closestool capable of conducting air exhaust deodorization and vacuum-assisted flushing. The air exhaust deodorization effect and the vacuum-assisted flushing effect can be achieved while no excessive devices are additionally arranged on the closestool to occupy space in the toilet. The closestool is improved so that the closestool can have the air exhaust deodorization function and the vacuum-assisted flushing function, odorous gas can not be left after people relieve the bowels due to the air exhaust deodorization function, and water resources are saved due to the vacuum-assisted flushing function.
Owner:BEIJING UNIV OF TECH

Cleanable injection mold

The invention relates to the technical field of mold machining, and discloses a cleanable injection mold. The cleanable injection mold comprises an upper mold and a lower mold; the upper mold is a convex mold; the lower mold is a concave mold; when the convex mold is clamped with the concave mold, a molding cavity is formed between the convex mold and the concave mold; the convex mold is providedwith an injection molding way communicating with the molding cavity; a cooling cavity is formed in the bottom of the concave mold, and is provided with a slide plate; a pressure spring is arranged atthe bottom of the slide plate; one-way valves are arranged on two sides of the cooling cavity; air cavities communicating with the external are arranged on two sides of the cooling cavity; rotating shafts are arranged in the air cavities; spiral blades are fixed on the rotating shafts; the convex mold is provided with a cooling way and a collecting cavity; a pressing plate is arranged in the collecting cavity; a pushing rod slidingly connected with the convex mold is fixed on the pressing plate; an air way and a closing block are arranged on the side wall of the molding cavity; the closing block is provided with a connecting rod; and the connecting rod is connected with the rotating shafts through one-way clutches. The cleanable injection mold is simple in structure, can remove dust of themolding cavity, scrapes off impurities in the molding cavity, and meanwhile, can cool plastic melts.
Owner:CHONGQING YINSHENG MOLD

Method for improving performance of cell edge users by using multi-objective genetic algorithm

The invention discloses a method for improving the performance of cell edge users by using a multi-objective genetic algorithm, and relates to the field of communication. The method for improving the performance of the cell edge users by using the multi-objective genetic algorithm can reduce the number of edge users to the greatest extent and greatly improve the service quality and the satisfaction degree of the users. The method comprises the following steps: enabling a base station to judge whether a user is a cell edge user or not according to measurement reports of the user; enabling the base station to determine the geographical positions of the edge users in coverage; enabling the base station to determine the base station which is in the vicinity of a cell edge user set according to the geographical positions of the edge users and the geographical position of the base station; enabling the base station to exchange information with the neighboring base station through X2; and enabling the base station to generate a coverage adjusting strategy through the multi-objective genetic algorithm according to the obtained information, and adjusting the activation and the closing of an RRU (radio remote unit), the transmission power and the declination angle and the azimuth angle of an antenna to change the coverage, thereby ensuring that users in the inter-cell overlapping region are as few as possible.
Owner:XIAMEN UNIV +1

Working face collapse column grouting waterproof treatment method

The invention relates to the technical field of coal mine disaster treatment, in particular to a working face collapse column grouting waterproof treatment method. The method comprises the following steps that a working face cut opening is pushed, and pushing is stopped until the safe distance between the working face cut opening and the collapse column is kept; two grouting auxiliary roadways anda plurality of grouting drill nests are tunneled at the positions, corresponding to the collapse column, of a transportation crossheading, and a plurality of corresponding grouting drill nests are tunneled at the positions, corresponding to the collapse column, of an air return crossheading; and inclination grouting drill holes are constructed in the grouting auxiliary roadways and the grouting drill nests in the transportation crossheading, inclination grouting drill holes are constructed in the grouting drill nests in the air return crossheading, and the final hole layers of all the grouting drill holes are controlled to be located in a bottom plate aquifer between the two bottom plate water-resisting layers of the coal seam. The method is not only suitable for preventing the situationthat the non-water-guide collapse column is activated and guides water due to mining influence, but also can reinforce the water-guide collapse column in a multi-layer grouting mode, the water insulation capacity can be improved, and it is ensured that no water damage accident occurs when the coal face is pushed over.
Owner:NORTH CHINA INST OF SCI & TECH +4

Integrated grounding system applied to urban rail transit adopting alternate current traction power supply system

The invention provides an integrated grounding system applied to urban rail transit adopting an alternate current traction power supply system. The grounding problem of the urban rail transit adoptingthe alternate current traction power supply system is solved, and the safety of equipment and personnel is ensured. The traction power supply system working ground (current returning access) is constituted by an upward steel rail, a downward steel rail, a catenary current returning line and the ground, and an upward steel rail conductor and a downward steel rail conductor are completely and transversely connected at the 500-600 m interval. The working ground (current returning access) is in single-point reliable connection with grounding devices of an integrated ground network of stations along a line, an interval air shaft ground network, a contact transverse channel ground network, a traction substation ground network, a tunnel, a bridge and the like, an equipotential platform is constructed while the grounding resistance of the system is reduced, and meanwhile, the situation that all systems are connected with the strong electricity working ground to become the strong electricity system current returning access is avoided.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD

Intelligent movable crushing station having remote monitoring function

The invention discloses an intelligent movable crushing station having remote monitoring function, which includes: a movable crushing travel system, a rod-vibrating feeding machine, a side belt machine, a blanking hopper device, a jaw crusher, a hydraulic lifting system, an electric-control system, an iron remover, a jaw crusher discharge main belt machine, and a weighing device disposed in the jaw crusher discharge main belt machine. The jaw crusher discharge main belt machine is installed under a discharge outlet of the jaw crusher. The iron remover is installed at the upper side of the middle part of the jaw crusher discharge main belt machine. The discharge outlet of the rod-vibrating feeding machine is arranged above the inlet of the jaw crusher. The side belt machine is installed under the jaw crusher discharge main belt machine. The hydraulic lifting system is disposed at the lower part of the movable crushing station and is connected to a main framework through a support assembly. The electric-control system is disposed on a platform above the jaw crusher discharge main belt machine. The intelligent movable crushing station has a complete set of comprehensive monitoring system, thus achieving remote monitoring of the movable crushing station.
Owner:SHANGHAI UNITRUSTON INTELLIGENT TECH CO LTD +1

Intelligent vertical grinding mill having remote monitoring function

The invention discloses an intelligent vertical grinding mill having remote monitoring function, which includes: a separator, a housing, a grinding roller device, a grinding disc device, a transmission arm, a position limiting device, a compressing inspection and hydraulic device, a transmission system, and a hydraulic lubricating system. The separator is installed on the upper part of the housing. The grinding roller device is installed in the middle-lower part of the housing. The grinding disc device is installed below the grinding roller device. The transmission arm is installed on a transmission portion of the grinding roller device. The compressing inspection and hydraulic device is installed under the transmission arm. The position limiting device is located in the compressing inspection and hydraulic device. The transmission system is installed on a base. The hydraulic lubricating system is connected to a main machine through an oil path. The vertical grinding mill, sensors, a transmitter, an intelligent numerical control server, a field man-machine interaction interface, a remote terminal monitoring server, and a WEB terminal form the whole monitoring system together. By means of a set of complete comprehensive monitoring system, remote monitoring on the vertical grinding mill is achieved.
Owner:SHANGHAI UNITRUSTON INTELLIGENT TECH CO LTD +1
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products