13results about How to "Accurate impact" patented technology

The utility model provides an adjustable spraying structure which comprises a main spraying pipe and a spraying head, the spraying head is connected to the main spraying pipe and communicated with the main spraying pipe, the adjustable spraying structure further comprises an adjusting piece, and the adjusting piece penetrates through a water outlet of the spraying head and is connected with the main spraying pipe and / or the spraying head. The outer wall of the adjusting part is provided with a guiding inclined face used for enabling fluid sprayed out of the water outlet to diffuse outwards, the adjusting part moves in the direction close to or away from the spray head and is positioned, and the aim of flexibly adjusting the spraying range is achieved.

The utility model discloses a kind of deburring is used to polishing device for aluminium ingot, it includes: the inner diameter of upper cover is same with the inner diameter of placing frame, and the upper end surface of upper cover and placing frame is threadedly connected;Several fender strips are divided into two groups and are respectively fixedly connected on the inner side surface of placing frame and the inner side surface of upper cover;The two sides of placing frame are rotatably connected with two supports respectively;Placing frame is rotatably connected with support by rotating motor;Two fixed screws are respectively placed on the front and rear end surfaces of placing frame, and the end of fixed screw is placed in the interior of placing frame after passing through the outer side surface of placing frame, and fixed screw is threadedly connected with placing frame;Abrasive grain flow generator is placed in the side of placing frame;Lifting cylinder is fixedly connected with the upper end surface of abrasive grain flow generator;The lifting rod of lifting cylinder is fixedly connected with the upper end surface of injection disc after passing through the upper end surface of abrasive grain flow generator.The beneficial effects of the utility model are: the process of deburring does not need to be constantly disassembled and installed, and the purpose of more time saving.

The utility model discloses a multi -directional force measuring support of stepless regulation height, including upper portion structure, upper portion structure includes the upper support plate, middle seat board, lower support plate and base plate that set gradually from top to bottom, be provided with the spherical cap lining board between the upper support plate and the middle seat board, the bottom surface of upper support plate and the top surface of middle seat board correspond to concave spherical surface, the upper and lower surface of spherical cap lining board are spherical surface, the upper end surface of spherical cap lining board and the bottom of upper support plate form first sliding friction pair, the lower portion of middle seat board is provided with lower support plate, the lower portion of lower support plate is equipped with base plate, and form the pelvic cavity between lower support plate and base plate.

The invention relates to an aviation structure impact load non-negative sparse coding algorithm expansion identification method and system. The method comprises the following steps: acquiring a monitored aviation structure and making a data set comprising an impact load force signal and a response signal; constructing a non-negative sparse coding model based on an impact load dynamic model and non-negative sparse prior; constructing an iterative convergence threshold algorithm for solving the non-negative sparse coding model; constructing a depth algorithm expansion network based on the iterative convergence threshold algorithm; training the depth algorithm expansion network by using the data set to obtain a network model with optimal parameters; and performing an impact load identification test by using the network model with the optimal parameters, and outputting an impact load to be identified. The method has the advantages that the calculation speed is high, parameters do not need to be manually set, and good noise immunity is shown; the neural network provided by the invention has better interpretability in structural design.

The utility model discloses a kind of fuel tank strength testing devices, belong to strength test field. Including clamping assembly, the clamping assembly includes frame base, limit strip is installed on two side edge positions of frame base, positioning part is installed between two groups of limit strip, clamping part is installed between two groups of limit strip, drive part is provided at the bottom of frame base;Test component, test component is used to impact test to the side edge of fuel tank;Limiting component, limiting component includes the shielding part for covering test area, fixed part is installed on the shielding part for clamping fuel tank, and the pressing part for pressing fuel tank is connected on the shielding part. A kind of fuel tank strength testing device of the application, by clamping, test, limiting component cooperation, positioning part is firmly clamped fuel tank from multidirectional, test component controls impact parameter, all-around limit displacement, impact point precision is kept, data accuracy is proposed.

The utility model discloses a kind of long-piston sand setting sand prevention oil well pumps of liquid release type, including pump barrel assembly, plunger assembly, outer tube assembly, fixed valve assembly and double-pass joint assembly, the pump barrel assembly includes lengthening pipe, outer tube assembly includes outer tube, fixed valve assembly includes upper end fixed valve cover, the outer tube assembly is formed with annular space sand setting channel between pump barrel assembly and fixed valve assembly, it is characterized by: still including tubular valve body, the outer wall of tubular valve body two ends is connected with the outer tube respectively, the inner wall of two ends is connected with the lengthening pipe and upper end fixed valve cover respectively, valve core is loaded in tubular valve body, the valve body inside two sides of valve core is also provided with sand setting connection channel, which is communicated with the annular space sand setting channel, when the valve core is broken, the communication of rod pipe annulus and oil jacket annulus can be realized. After the utility model is applied, the communication of rod pipe annulus and oil jacket annulus can be realized when pump is inspected, and then oil pipe is not caused ground pollution when being pulled out.

The invention relates to the technical field of video compression coding, and discloses an intelligent lossless video compression optimization method and device, equipment and a medium. According to the method, initial content description of an original video stream is extracted through a visual description network, content marking points are marked, and a dynamic content topological graph is generated according to the space-time relation of the content marking points. And performing semantic aggregation on the topological graph to form a semantic aggregation unit associated with a compressed semantic tag. A candidate compression strategy is matched for each unit, an initial strategy mapping table is generated, and a final strategy mapping table is screened out according to global constraint iteration. And configuring encoder parameters according to the table to carry out lossless encoding, and collecting feedback information to adjust strategies and parameters on line. According to the method, the structured association of the video content can be deeply understood, and the dynamic closed-loop optimization of the coding strategy is realized, so that the overall efficiency and the adaptive capability of lossless video compression are improved.

The invention provides a biomass oxygen lance and an electric arc furnace, relates to the technical field of metallurgical equipment, and aims at solving the problem that a large amount of carbon is discharged due to the fact that oil oxygen and gas burners are used for fluxing waste steel at the present stage to a certain extent. The invention provides a biomass oxygen lance. The biomass oxygen lance comprises a central pipe, a rotational flow blade and a circular seam sleeve assembly, the central pipe, the rotational flow blade and the circular seam sleeve assembly are sequentially and coaxially arranged in a sleeving mode from inside to outside, a containing cavity is formed in the circular seam sleeve assembly, the central pipe is arranged in the containing cavity, and the rotational flow blade surrounds the outer wall of the central pipe, so that a rotational flow gas channel is formed between the central pipe and the circular seam sleeve assembly; a premixing channel is formed in the position, corresponding to the circular seam sleeve assembly, of the outlet end of the center pipe, and the rotational flow gas channel is communicated with the premixing channel.

The utility model relates to the field of medical health, and the purpose is to provide an intraocular pressure measuring device to reduce the operation difficulty of user and improve measurement accuracy. The utility model discloses the technical scheme is: an intraocular pressure measuring device, characterized by: including the telescope cylinder with eyeshade, the rebound type pressure measuring module of setting in the telescope cylinder, the position adjusting module of connecting telescope cylinder and rebound type pressure measuring module, the controller of electric connection position adjusting module and rebound type pressure measuring module.

The invention relates to the technical field of network operation and maintenance, and discloses a network jitter diagnosis method and device, equipment and a medium. The method comprises the following steps: when a data packet is confirmed to be delivered, calculating network jitter data; embedding the network jitter data into the service calling link data to obtain embedded link data; and carrying out jitter root cause analysis on the embedded link data to obtain a network jitter diagnosis result. According to the embodiment of the invention, the network jitter can be accurately associated with the affected user, and the influence of the network jitter on the service is clear.

This utility model provides an online rotary descaling nozzle assembly for shell-and-tube heat exchangers, relating to the field of descaling nozzles. It includes a spray cover and an inlet cylinder. A pressure cylinder is screwed onto the outer side of the inlet cylinder, a tension spring is welded to the top of the inlet cylinder, a shielding shell is welded to the outer side of the inlet cylinder, and a telescopic cylinder is slidably connected to the inner side of the inlet cylinder. A ring plate is welded to the bottom end of the telescopic cylinder, a rotating cylinder is rotatably connected to the inner side of the telescopic cylinder, a propeller plate is welded to the inner side of the rotating cylinder, and a guide plate is welded to the inner side of the telescopic cylinder. A rotating cylinder is welded to the bottom end of the spray cover. The arrangement of the spray cover, tension spring, telescopic cylinder, and rotating cylinder avoids the problem of traditional nozzles being easily clogged by external scale due to exposed nozzles, ensuring that the nozzle assembly can smoothly advance inward along the tube bundle. This solves the problems of traditional rotary descaling nozzles where the head position cannot break through scale blockages in the tube bundle and the exposed nozzle structure being easily clogged by external scale.

The invention discloses an intelligent fishway fish passing effect monitoring device, and relates to the technical field of fish resource protection, the intelligent fishway fish passing effect monitoring device comprises a cleaning cylinder, the outer side of the cleaning cylinder is welded with a connecting arm, the bottom of the inner side of the connecting arm is provided with a bearing, the inner side of the bearing is embedded with a rotating column, and the outer side of the connecting arm is provided with a waterproof shell. The device is scientific and reasonable in structure and safe and convenient to use, the pressure pump is started, so that the spherical glass cover is flushed repeatedly, the water-proof motor is installed on the inner side of the water-proof shell, the water-proof motor is installed on the inner side of the water-proof shell, the water-proof motor is installed on the inner side of the water-proof shell, and a clamping disc is welded to one end of the rotating column, and the spherical glass cover is attached to one end of the clamping disc. At the moment, the originally dirty surface of the outer side of the spherical glass cover can be cleaned, and the outer surface of the spherical glass cover can be alternately cleaned through multiple times of washing, so that the surface, located in water, of the spherical glass cover is always clean, and it is guaranteed that a monitoring camera can shoot fish schools in a fishway clearly all the time during fish school monitoring.

This invention relates to a method and application for estimating the organ weight of healthy tilapia, belonging to the field of aquatic animal experimental technology. The method provides a functional relationship between the body weight of healthy tilapia and the weight of various organs. This invention also provides a method for evaluating the effectiveness of tilapia animal experiments using the aforementioned method. The method involves measuring the weight of tilapia at each stage of the experiment, using the method to estimate the organ weights corresponding to the healthy tilapia at that body weight, obtaining the organ weights of the experimental tilapia, and evaluating the impact of experimental factors on the various organs of the tilapia based on the obtained organ weights corresponding to the healthy tilapia at that body weight. This invention provides an accurate method for evaluating the impact of experimental factors on the organs of tilapia in animal experiments.