49results about How to "Maintain stability" patented technology

The utility model relates to the technical field of ocean foundation protection, specifically relates to a scour protection device of ocean pile foundation, including cylinder and protection subassembly, and protection subassembly includes protection cylinder, buffer component, connecting rod, deflector, ring plate and fixed anchor, the protection cylinder is set in the outside of cylinder before installing cylinder, when installing cylinder on the bottom of sea placement surface, the fixed anchor on ring plate is buried in placement surface simultaneously, the protection cylinder is connected with ring plate through connecting rod and is strengthened fixed, and the connecting rod circular array is 6, and the section between every connecting rod and protection cylinder and ring plate forms triangle, makes the device have stability, and the deflector is used for water flow guiding, avoids that water flow directly washes cylinder and installs placement surface, and connecting rod, ring plate and protection cylinder adopt integrated pouring forming process.

The utility model discloses a kind of device for separating and purifying cosmetic functional raw materials using affinity chromatography technology, it is related to chromatography column field, including fixed plate, chromatography column, heat preservation shell and connecting assembly, chromatography column is by effluent bucket, glass shell and top cover composition, fixed plate fixedly sets in effluent bucket outer wall, effluent bucket and top cover are with glass shell and are formed sealed cavity by thread connection, heat preservation shell is clamped by two half shells and is wrapped in chromatography column outer wall, connecting assembly is installed in fixed plate lower surface, connecting assembly is used for the fixation and separation of two half shells, the utility model is split by heat preservation shell, so that scale can be completely removed in cleaning process, improve heat transfer efficiency, ensure the uniformity of chromatography column internal temperature distribution, conducive to maintaining the stability and separation effect of chromatographic process.

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

This utility model relates to the field of wind turbine technology, and the technical problem it aims to solve is the insufficient fatigue strength. To address this problem, this utility model provides a blade main beam and a wind turbine blade. The utility model includes: an upper blade main beam comprising multiple spliced ​​upper sub-beams; the upper sub-beam includes a C-shaped connecting body and two connecting lugs; the connecting lugs are formed by bending outwards from the end of the connecting body; a lower blade main beam comprising multiple spliced ​​lower sub-beams; the upper and lower blade main beams are joined vertically, and their connecting lugs are fixedly connected; a strength-equalizing connection assembly comprising a C-shaped strength-equalizing connection part and a connecting plate; the connecting plate is connected to the opening of the strength-equalizing connection part; at the splicing position, the strength-equalizing connection assembly is inserted into the interior of the connecting body, and the top wall of the strength-equalizing connection part is fixedly connected to the top wall of the connecting body. The fatigue strength of the blade of this utility model meets the requirements.

The utility model relates to a kind of steam treatment device and electric water heater, belong to water heater field, steam treatment device includes: water storage tank body, water storage tank body is equipped with water storage cavity, water storage tank body is equipped with the water tank water replenishing port being communicated with water storage cavity;Steam treatment component, steam treatment component is set on water storage tank body, steam treatment component is equipped with condensing space, condensing space is communicated with water storage cavity, steam treatment component is equipped with the first output port being communicated with condensing space;Backflow structure, backflow structure is connected with steam treatment component and water storage tank body respectively, backflow structure is communicated with the first output port, backflow structure is communicated with the water tank water replenishing port.This application discloses steam treatment device can effectively liquefy the steam generated by water storage cavity by the condensing space of steam treatment component setting, liquid water after condensation is re-delivered to the water tank water replenishing port by the first output port of backflow structure, can avoid the waste of water resources caused by steam direct discharge, realize the recycling of water resources.

This invention discloses a specific molecular marker for identifying eggplant Saet CMS cytoplasmic male sterility lines and its application. The molecular marker, Saet218b, was selected by comparing the mitochondrial genomes of the eggplant Saet CMS cytoplasmic male sterility line and its maintainer line. Through bioinformatics analysis, the candidate specific gene for Saet CMS male sterility, orf218b, was obtained, and its nucleotide sequence is shown in SEQ ID NO: 1. Based on this sequence information, the molecular marker Saet218b for identifying eggplant Saet CMS cytoplasmic male sterility lines was successfully designed. The molecular marker of this invention can be used to identify eggplant Saet CMS cytoplasmic male sterility lines efficiently and with a simple procedure. The results can be used for marker-assisted breeding of eggplant Saet-derived cytoplasmic male sterility lines, improving breeding efficiency. It also provides technical support and theoretical basis for the identification of eggplant specific cytoplasmic germplasm.

The application discloses a tungsten alloy production scheduling decision method and system based on full-process data perception, relates to the technical field of tungsten alloy production scheduling, and specifically comprises the following steps: in the case that the state is rewritten and the original state is not inherited around the fracture position, a constraint embedding mapping sequence based on state order is constructed in a multi-dimensional state identification sequence, a process identification before the fracture position is embedded into an identification section after the fracture position in time sequence, and a mapping correspondence across the identification sections is established, so that a continuous full-process data perception state is formed. The application solves the problem that the full-process data perception state is fractured and scheduling decision cannot be accurately performed due to the state rewriting of batches before process switching and the non-inheritance of the original state in the tungsten alloy production process, realizes the reconstruction and continuous expression of the fractured state, and accurately deduces the execution sequence and dynamically adjusts the scheduling sequence based on the continuous state, so that the continuity and accuracy of production scheduling are improved.

The utility model relates to the related technical field of spiral welded pipe production auxiliary equipment, and one embodiment of the utility model provides a welding wire feeding frame for spiral welded pipe production, the welding wire feeding frame comprises a bottom plate and a bottom frame, the bottom frame is fixed on the surface of the bottom plate, a winding roller is arranged on the bottom frame, a clamping mounting assembly is arranged in the bottom frame, and vertical frames are fixed on the surface of the bottom plate; the tightening assembly is arranged on the vertical frame and comprises a pair of grooves, the grooves are formed in the two ends of the top of the bottom frame, a plurality of rolling wheels are rotationally connected into the grooves, and the winding roller is placed on the rolling wheels. By means of the technical scheme, the technical problems that in the prior art, a welding wire feeding frame is poor in flexibility, and the height of a winding roller cannot be adjusted are solved.

This utility model relates to the field of gear technology and discloses a gear assembly with adjustable gear meshing distance. The gear assembly includes a mounting platform, a mounting seat on the outer side of the mounting platform, a motor fixedly mounted on the inner wall of the mounting seat, and a main gear fixedly connected to the output end of the motor via a round rod. A driven gear is located on the outer side of the main gear. An adjustment mechanism and a facilitating mechanism are also located on the outer side of the mounting platform. In this gear assembly, adjusting the worm gear causes the worm wheel to rotate, which in turn causes the lead screw to rotate, moving the mounting seat horizontally and thus moving the main gear. This adjusts the distance between the main gear and the driven gear. The self-locking characteristic of the worm wheel and worm gear ensures the stability of the mounting seat. The sliding block and sliding groove further stabilize the mounting seat, ensuring the stability of the distance between the main gear and the driven gear after adjustment.

This utility model discloses a remote terminal port cable fixing structure, belonging to the field of remote terminal technology. This remote terminal port cable fixing structure includes a remote terminal body and a fixing component. The fixing component is disposed outside the remote terminal body and is used to fix the connection between the port and the coaxial cable connector to prevent it from falling off or loosening. The remote terminal body includes a housing, and the front of the housing has several coaxial cable ports. The fixing component includes several first fixing rings, each of which is fitted onto the outside of several coaxial cable ports. A second fixing ring is provided on the side of the first fixing ring away from the housing. First connecting seats are installed on both outer sides of the first fixing rings, and second connecting seats are installed on both outer sides of the second fixing rings. Positioning grooves are formed inside the first connecting seats near the upper and lower ends. Positioning plates are inserted into both positioning grooves, and one side of each pair of positioning plates is fixedly connected to the side of the second connecting seat near the first connecting seat.

This utility model discloses a conveying device for preventing the accumulation of calcined coke, comprising a mounting box fixedly installed on the rear side of a conveying device. A fixed plate is fixedly connected to the front side of the top of the conveying device. A mounting plate is provided at the central axis of the top of the fixed plate. A rotating rod is rotatably connected to the inner cavity of the mounting plate. Circular rings are fixedly connected to the left and right sides of the rotating rod. A connecting sleeve is fixedly connected to the rear side of the inner cavity of the circular rings. A swing plate is rotatably connected to the inner cavity of the connecting sleeve. Two symmetrical connecting plates are fixedly connected to the front side of the swing plate. An arc-shaped plate is fixedly connected to the front side of each of the two connecting plates. This utility model, through the coordinated use of a motor, a rotating rod, and a swinging component, causes the two arc-shaped plates to drive the connecting plates to swing within the inner cavity of the circular rings, which in turn causes the connecting sleeve to rotate on the surface of the connecting rod. Finally, the swing rod drives the ironing block to swing at the top of the conveying device, thus preventing the accumulation of calcined coke.

The application provides a direct-drive wind turbine active damping control method suitable for extremely weak power grids, comprising: a first oscillation stability improvement control strategy of a grid-side converter of a direct-drive wind turbine, and a second oscillation stability improvement control strategy of a machine-side converter; the first oscillation stability improvement control strategy is to apply d-axis and q-axis current components to corresponding voltage channels after damping compensation through the combination of a high-pass filter and a virtual impedance link; meanwhile, the q-axis current components are cross-compensated to the d-axis voltage channel after passing through a band-stop filter and a virtual impedance link; the second oscillation stability improvement control strategy is to apply d-axis and q-axis current components to corresponding voltage channels after damping compensation through the combination of a band-stop filter and a virtual impedance link. Through the grid-side converter control strategy and the machine-side converter control strategy, the oscillation stability of the direct-drive wind turbine is improved under the condition of extremely weak power grids, and the dynamic performance is not affected.

This invention discloses a Simulink compiler testing method based on reinforcement learning to achieve configuration diversification, comprising: initial information acquisition; configuration update; feature vectorization component to implement feature representation of CPS model, i.e., representing CPS model for diversity measurement; using reinforcement learning to compare the feature vectors between the new CPS model and the previously generated CPS model, and through comparison, using reinforcement learning to learn the reward brought by updating the configuration, i.e., learning the configuration to generate different CPS models; recommending configurations using the knowledge learned by reinforcement learning; generating new CPS models according to the new configuration, thereby generating diverse CPS models to fully test the Simulink compiler; using differential testing to compare the execution trajectory of CPS model in different simulation modes, if the execution trajectory is the same, the error information is recorded to complete the testing process of the CPS model, if there is a difference, the difference information is recorded and identified as a bug discovery.

This application provides a binocular six-axis low-cumulative-error spatial positioning method and apparatus, applied in the field of positioning and navigation technology. When an anomaly is detected in the spatial motion correlation between vision and inertial at continuous time intervals, it is determined that the current moment is in a state of perception history break. The visual pose constraints at the corresponding moment are isolated from the historical visual constraint set and participate in pose calculation only in an independent local visual constraint set, thereby avoiding the continuous accumulation of abnormal visual constraints in the time dimension and interference with inertial pose updates. In the absence of perception history break, the consistency between the historical visual constraint relationship and the inertial pose change sequence and spatial motion self-consistency data is reviewed, and inconsistent visual constraint relationships are dynamically eliminated. This allows the effectiveness of visual constraints in pose fusion to be adaptively adjusted over time, suppressing the amplification process of inertial cumulative error and meeting the requirement of maintaining high-precision positioning under complex environments and long-term operating conditions.

The utility model relates to textile equipment technical field discloses an auxiliary nozzle for air -jet loom, including mounting seat, the top fixed connection of mounting seat has main pipeline, the inside fixed connection of main pipeline has auxiliary nozzle, both sides of main pipeline are fixedly installed with flange, the both sides of mounting seat inside are inserted respectively with first gas pipeline and second gas pipeline, the middle part of first gas pipeline and second gas pipeline are fixedly connected with first air pump and second air pump respectively, the number of flange is two, and first gas pipeline and second gas pipeline are fixed respectively through two flanges in both sides of main pipeline. The utility model has the advantages and effects that when the auxiliary nozzle needs high frequency sustained indirect air injection, first air pump and second air pump are in the alternating form respectively to the inside gas supply of first gas pipeline and second gas pipeline, then carry out air injection through auxiliary nozzle, and then make the device can high frequency sustained indirect air injection.

This utility model relates to the field of support pole technology and discloses a lightweight support pole for a railway station isolation tent, including a base corner seat, a vertical support pole, and a horizontal support pole. A first side groove is provided on one side of the base corner seat. The vertical support pole is inserted into the top of the first side groove from top to bottom. The horizontal support pole is inserted into the bottom of the first side groove. Several first locking frames are fixedly connected to adjacent sides of the vertical support pole, and several second locking frames are fixedly connected to the top of the horizontal support pole. An inclined support pole is provided at the top of the base corner seat. The vertical support pole and the horizontal support pole are connected through the base corner seat. An inclined support pole is fixedly installed inside the first and second locking frames on one side of the vertical and horizontal support poles, making the connection between the vertical and horizontal support poles triangular. This secures the tent's support frame and prevents deformation or breakage of the vertical support pole due to strong winds or accidental collisions, thus ensuring the stability and safety of the isolation tent.

The utility model relates to sand pump slurry inlet pipe connection technical field, and disclose a kind of for sand pump leakproof slurry inlet pipe connecting device, including sand pump body, the right side of sand pump body is provided with sand pump slurry inlet pipe, both sides wall of sand pump slurry inlet pipe is all welded with limit board, one end of sand pump slurry inlet pipe is equipped with connecting sleeve, and the inner ring middle part of connecting sleeve is provided with sealing rubber ring.This kind of for sand pump leakproof slurry inlet pipe connecting device, in connection tightness and leakproofness, the sealing rubber ring of the inner ring middle part of connecting sleeve is compressed in the process of connection, and sealing performance is enhanced, effectively prevent the occurrence of leakage, so that sand pump has stability and reliability when transporting mortar, in operational convenience and universality, not only facilitate the installation and maintenance of equipment, also reduce the operation difficulty, improve work efficiency, applicable to a variety of sand pump working scene.

The utility model relates to foamed plastic production technical field discloses a kind of collecting devices after foam forming machine demoulding, including machine body and hopper, the inside rotation connection of machine body has cylinder, the outside transmission connection of cylinder has conveyer belt, the outside fixed mounting of machine body has motor, the output end of cylinder is fixedly connected in motor, the outside fixed connection of conveyer belt has limit block, the number of limit block is several, and several limit block are divided into two groups, the inside fixed mounting of one limit block has pneumatic cylinder, the output end fixed connection of pneumatic cylinder has push plate.The utility model has following advantages and effects: the device can simultaneously collect multiple foams, and can classify and collect multiple foams, foam has stability outside conveyer belt, when multiple foams are taken out, the rotation of conveyer belt makes foam can be conveyed to next processing point.

The application discloses a kind of vision-based industrial robot intelligent discharging device, system and method, first discharging line is arranged in the discharge end of the transmission unit, including conveying unit, separating mechanism, visual detection mechanism and pushing mechanism;Conveying unit is arranged in the discharge end of the transmission unit, for conveying material;Separating mechanism is arranged in the first half of the conveying unit, for separating multiple materials;Visual detection mechanism is arranged in the middle section of the conveying unit;Pushing mechanism is arranged in the tail end of the conveying unit, for pushing out the material that detection is not up to standard.The present application avoids missing detection and wrong detection, makes the detection result more accurate, improves product quality consistency, greatly improves detection and discharging efficiency, avoids channel blockage and jam caused by mixed conveying of different height materials, ensures smooth conveying, avoids fatigue error caused by long-time operation, has the beneficial effects of low manufacturing cost, simple operation and not easy to damage, etc.

The application discloses a leg and foot exercising device, which comprises a first plate, a second plate and a supporting piece. The first plate and the second plate are hingedly arranged. The panel on the side of the first plate away from the second plate is an A-shaped panel. The panel on the side of the second plate away from the first plate is a B-shaped panel. The A-shaped panel is provided with a first protrusion. The B-shaped panel is provided with a second protrusion. The supporting piece is arranged between the first plate and the second plate and is used for supporting the first plate or the second plate so that the first plate or the second plate is arranged in an inclined mode. The leg and foot exercising device has at least a first use state, i.e. the first plate is arranged in a horizontal mode and serves as a bottom plate, and the second plate is arranged in an inclined mode. The leg and foot exercising device also has a second use state, i.e. the second plate is arranged in a horizontal mode and serves as a bottom plate, and the first plate is arranged in an inclined mode. When the calf muscles are exercised, the A-shaped panel or the B-shaped panel can be selected to be in contact with the sole, different use feelings and exercising effects can be realized, and the full utilization and use flexibility of the product are improved.

This disclosure relates to a blade, propeller, powertrain, and unmanned aerial vehicle (UAV). The blade includes a root section and a main body section arranged radially in sequence. The pitch angle of the main body section decreases from a positive value to a negative value radially and away from the root section. The technical solution provided by this disclosure optimizes the angle of attack distribution at different radial positions of the blade by changing the pitch angle, balancing lift and drag. The pitch angle of the main body section near the root section is positive, providing high lift, while the pitch angle of the main body section away from the root section is negative, which can suppress tip turbine noise, reduce noise caused by airflow separation, and simultaneously reduce induced drag at the tip, improving overall efficiency.

The utility model relates to the technical field of building keel, disclose an anti-seismic keel and easy buckle structure thereof, including base, the top fixed mounting of base has the support plate, the bottom of base is provided with the anchoring structure, is used for reinforcing the connecting stability of base and ground and other installation base, prevent displacement when in the earthquake. The utility model is provided with the arc shock pad, when the earthquake occurs, the arc shock pad is in the installation gap and occurs elastic deformation by the special arc structure of itself. The deformation can effectively dissipate and buffer the energy produced by the earthquake, greatly reduce the earthquake force on the keel main body, thereby avoiding the damage of the keel main body due to stress concentration. Compared with the traditional keel lacking damping and buffering mechanism, the utility model effectively improves the stability of the keel in the earthquake, greatly reduces the risk of building structure suffering damage due to the damage of the keel, and provides more reliable anti-seismic protection for the building.

The utility model provides a kind of carbon fiber roller, including pipe body, inner flange, outer flange, pipe body includes inner end and outer end, inner flange is installed in inner end, and outer flange is installed in outer end;The pipe body is carbon fiber pipe body, and the pipe wall of carbon fiber pipe body is equipped with punching part, and carbon fiber roller realizes significant light weight and high specific strength simultaneously, and the layout of vent hole of punching part is optimized to balance ventilation efficiency and structural strength.

This invention belongs to the field of power engineering technology, and in particular to a rapid high-altitude cable fixing structure, comprising an I-shaped steel frame. The surface of the I-shaped steel frame is provided with a movable component, which includes a rear movable plate located below the I-shaped steel frame. When the air pump is running, gas is injected, driving the front L-shaped movable plate to move via a connecting rod. When the air pump is running, gas is extracted, pulling the rear movable plate to move. This alternation achieves intermittent movement of the entire structure on the I-shaped steel frame. When the front L-shaped movable plate moves, it drives the irregular plate, causing the L-shaped fixing hook plate to rotate around it. When the rear movable plate moves, the L-shaped fixing hook plate rotates under gravity to below the cable. As the entire structure moves, the cable is fitted and fixed within the L-shaped fixing hook plate, achieving rapid and stable fixing of the cable at high altitude.

This invention provides a privacy-preserving method, system, and device for perturbation-based graph federation learning. Specifically, it includes the following steps: S0, acquiring original local graph data in the local environment of each federation participant, the original local graph data including graph node feature vectors and a first adjacency matrix; S1, calculating graph node embedding representation vectors based on the graph node feature vectors and the first adjacency matrix, simultaneously calculating the average degree of nodes, and then constructing a node similarity matrix; S2, selecting a potential edge for any node based on the node similarity matrix and average degree generated in S1, generating a potential edge set, and constructing a second adjacency matrix; S3, performing a secondary screening of the potential edges based on the potential edge set and the second adjacency matrix obtained in step S2, constructing a final adjacency matrix; S4, regenerating the graph node embedding representation vectors based on the final adjacency matrix obtained in S3, and uploading them to a central server.

This invention discloses a method, system, and storage medium for capacity compensation of lithium-ion battery cells. The method includes: constant current charging of the lithium-ion battery cell under test to a charging cutoff voltage, then switching to constant voltage charging until the charging current drops to the cutoff current; constant current discharge of the fully charged cell to a first cutoff voltage using a first discharge current, recording the released capacity as the main discharge capacity; after the main discharge, allowing the cell to rest for a preset time; continuing constant current discharge of the rested cell to a second cutoff voltage using a second discharge current, recording the released capacity as the reference discharge capacity; and calculating the compensated capacity using a capacity compensation formula based on the main discharge capacity, the reference discharge capacity, and a pre-determined reference discharge capacity benchmark value. This invention can eliminate the influence of polarization differences caused by ambient temperature fluctuations on the capacity test results during capacity testing, improving the accuracy of capacity testing.

The application discloses a cavity type prefabricated segment assembled pier top beam and a construction method thereof. The top plate of the pier top beam is divided into a first top plate and a second top plate, the second top plate is located in the middle of the first top plate, the bottom plate is divided into a first bottom plate and a second bottom plate, the second bottom plate is located in the middle of the first bottom plate, the web plate is divided into a first web plate and a second web plate which are mutually attached, the pier top beam structure comprises a shell and an inner cavity part, the shell comprises the first top plate, the first bottom plate, the first web plate and a flange plate, and the shell is a prefabricated reinforced concrete component; the inner cavity part comprises the second top plate, the second bottom plate and the second web plate, and the inner cavity part is a cast-in-situ reinforced concrete structure. The prefabricated shell is light and thin, the prefabricated shell reduces the weight of the prefabricated segment by 30-50% compared with the prefabricated pier top beam, and is convenient for transportation and hoisting; the pier top segment beam has global stability and seismic performance, the wet joint design of the cast-in-situ beam is removed, the installation speed of the segment assembly is ensured, and the longitudinal splicing joint of the beam is reduced, and the safety of the beam is ensured.

The application discloses a kind of data storage method and system based on object chain, which comprises: using N nodes to store data and text;N nodes are linked to form M string chain under the guarantee of security guarantee mechanism;M string chain freely constitutes X object unit;X object unit is linked to form block chain by control library firmware, realize the storage of multiple data and text;The system makes the above-mentioned method carry out data storage and management;System includes support layer, functional layer and interface layer;Wherein, support layer includes: directory service module;Functional layer includes: authentication service module, identity management module, authorization management module, role management module, resource management module and configuration management module;Interface layer includes: API interface module, Web service module and management tool module;Different functional components can be connected through API interface module, can adapt to various different platforms, and the performance is stable and reliable;And data storage efficiency and security are very high, and storage is not limited.