867823 results about "Structural engineering" patented technology

The finger ring assembly is provided. The ring assembly includes a circular band portion adapted to encircle a human finger. The band portion includes a notched portion located at its top portion. The ring assembly includes a metallic ornament configured to removably engage to the notched portion of the band portion. The metallic ornament includes a top wall, a pair of side walls, and a pair of horizontally extending flaps extending inward from the bottom of the side walls, forming a retaining space for receiving the notched portion. The top wall of the metallic ornament is substantially smooth and curved and to complement the same, the pair of horizontally extending flaps are also curved, thereby forming a retaining space for tightly holding the notched portion of the band portion.

A substrate holder includes a base configured to receive a substrate; a cover configured to mateably engage with the base, the cover defining an opening formed by inner sidewalls; and a removable insert defining a surface, the removable insert being configured to be received within the opening of the cover. The removable insert includes a gasket; a projection coupled to the gasket; and at least two insert tabs extending from opposite sides of the removable insert, each insert tab being configured to engage with at least one of the inner sidewalls forming the opening of the cover.

A computer implemented system configured for receiving obtaining sensor data comprising one or more displacements as a function of time of one or more targets attached to a structure in response to point loads applied to the structure; optionally receiving image data representing images of the vehicles comprising the point loads traversing the structure; and determining, from the displacements, at least one of a health status of the structure, or forces applied by one or more of the point loads.

The invention relates to the technical field of drill rod monitoring, in particular to a residual life prediction method for high-strength drill rod steel corrosion fatigue monitoring, which comprises the following steps: acquiring working data of a drill rod, including stress and corrosion environment data; quantifying the influence of the stress and the corrosion environment on the fatigue life, and establishing a stress-corrosion environment-fatigue life quantitative relationship; constructing an improved damage accumulation model considering corrosion rate and crack propagation to obtain a preliminary drill rod residual life prediction result; fusing real-time monitoring data and historical operation data by using a deep learning algorithm, introducing an attention mechanism to dynamically adjust the weight of the model, and correcting and updating the prediction result of the remaining life of the drill rod; and setting multi-stage safety thresholds, and carrying out graded early warning on the failure time of the drill rod. By means of the method, intelligent management of the whole life cycle of the drill rod can be achieved, and the safety, reliability and economical efficiency of drilling operation are improved.

Disclosed in the present invention is a foundation deformation calculation method based on numerical model stress extraction. First, a numerical model is established to calculate the vertical additional stress distribution and horizontal additional stress distribution of foundation soil, wherein the elastic modulus of the foundation soil is selected within a range of two to five times the compression modulus on the basis of engineering experience; a layer-wise summation method is used, in which layered settlement is directly calculated for a natural foundation, settlement in a reinforced zone and settlement in an underlying layer are both calculated for a composite foundation, and layered settlement amounts are superimposed and multiplied by a settlement empirical correction coefficient to obtain a final settlement amount; the projection of a horizontal displacement calculation point on the ground and a vertical soil column below the horizontal displacement calculation point are taken as a vertically placed finite elastic long beam, the cross section of the soil column is square, the side length of the soil column is preferably 0.1 m or below, the modulus of the beam is the same as that of the soil, one end is located in a ground surface plane, and the other end is located in a plane where a calculation depth is located; and a distributed load is dispersed into several concentrated loads, a foundation bed coefficient is determined on the basis of a specification, and the horizontal displacement of the calculation point is obtained by means of a beam-on-elastic-foundation method.

A base station is disclosed for an unmanned aerial vehicle (UAV). The base station includes: an enclosure; a slide mechanism that is connected to the enclosure and which is repositionable between a retracted position and an extended position; and a cradle that is connected to the slide mechanism and which defines a chamber that is configured to receive the UAV such that the UAV is movable into and out of the enclosure during repositioning of the slide mechanism between the retracted position and the extended position. The cradle includes: an upper shell; a lower shell that is connected to the upper shell; and at least one thermal insulator that is located between the upper shell and the lower shell.

The present disclosure relates to a mechanical stretching device for a movable seat unit, including: a seat assembly, including a base assembly, a lateral plate, and a central driven member; a backrest assembly, pivotally connected to a rear part of the lateral plate; a leg stretching device, pivotally connected to a front part of the lateral plate, including a first footrest member; the mechanical stretching device allows the seat unit to be switched between a sitting position and a lying position; the first footrest member is folded below a seat when in the sitting position; and the backrest is relined backward, a highest point of the footrest is higher than a highest point of the backrest, and the first footrest member is stretched forward and upward, when in the lying position. The present disclosure further relates to a movable seat unit.

The invention belongs to the technical field of batteries, and discloses a battery cover plate and a single battery, the battery cover plate comprises a plate body assembly and a pole assembly, the plate body assembly is used for covering an opening of a battery shell, the plate body assembly comprises a first plate body, a second plate body and a connecting part, the first plate body comprises a first surface and a second surface which are oppositely arranged, the first surface is configured to be arranged towards the battery shell, the direction from the first surface to the second surface is a first direction, the second plate body comprises a first side and a second side which are oppositely arranged, the second plate body inclines in the direction deviating from the first direction from the direction from the first side to the second side, and the first side is connected with the first plate body through a connecting part; the battery cover plate comprises a first plate body and a second plate body, a connecting part is arranged between the first plate body and the second plate body, the connecting part protrudes towards the first direction, a pole assembly penetrates through at least one of the first plate body and the second plate body, the connecting part protrudes out of the pole assembly along the first direction, the structural strength of the plate body assembly can be improved, and the probability that the pole assembly is bumped in the manufacturing process can be reduced.

The invention discloses a geotechnical engineering stability early warning system and method combining side slope deformation monitoring and numerical simulation, and relates to the technical field of geotechnical engineering safety monitoring and disaster early warning. Side slope deformation monitoring and numerical simulation are combined, and multi-source real-time monitoring data of side slope deformation and numerical simulation are fused; constructing a dynamically updated slope deformation evolution analysis system; performing dynamic partition identification on the slope deformation evolution process according to the multi-source real-time monitoring data, and identifying a slope deformation threshold value and abnormal evolution characteristics of rock and soil; and setting an automatic triggering grading early warning signal of a geotechnical engineering early warning index, and completing slope risk dynamic assessment and early warning output of the rock and soil. According to the invention, the automatic triggering of the grading early warning signal is realized, the response speed, the judgment accuracy and the risk assessment scientificity of the geotechnical engineering early warning system are obviously improved, and the intelligent, dynamic and systematic technical support is provided for the safety prevention and control of the side slope.

The present invention relates to an umbilical cable bending stiffness testing device and method. The device comprises a workbench; a measuring groove is formed in the top of the workbench; a fixing assembly is arranged in the measuring groove, and the fixing assembly is used for fixing two ends of an umbilical cable; a mounting plate is fixedly connected to the bottom of the workbench; a mounting frame is fixedly connected to the upper surface of the mounting plate; a threaded rod is rotatably connected between the lower surface of the mounting frame and the upper surface of the mounting plate; obtained data is transmitted to a dynamic data acquisition system by means of a displacement monitor body; the dynamic data acquisition system calculates obtained parameters to obtain bending stiffness curves of the umbilical cable under different curvatures. Moreover, because the device is in rigid connection with the umbilical cable by means of two sets of hoops, the problem of stress concentration caused by flexible connection of a steel strand rope is avoided, and the rigid connection ensures that tensile loads can be applied to two points of the umbilical cable in a balanced manner during an experiment, thereby improving the accuracy of bending stiffness testing results.

Provided is an adjusting device for a seat unit, configured to switch the seat unit between a sitting position, a stretching position, and a lying position. The adjusting device includes a backrest connecting assembly, an intermediate transmission assembly, and a footrest connecting assembly that are connected in sequence. The backrest connecting assembly at least includes a backrest connecting block. The intermediate transmission assembly at least includes a seat frame and an adjusting mechanism configured to adjust the seat frame. The adjusting mechanism includes a first connecting member, the first connecting member is configured with a first hinge hole, a second hinge hole, and a third hinge hole in sequence, a distance between the first hinge hole and the third hinge hole is A1, a distance between the second hinge hole and the third hinge hole is A2, and a ratio of A2 to A1 is not greater than 0.5.

A substrate holder includes a base configured to receive a substrate; a cover configured to mateably engage with the base, the cover defining an opening formed by inner sidewalls; and a removable insert defining a surface, the removable insert being configured to be received within the opening of the cover. The removable insert includes a gasket; a projection coupled to the gasket; and at least two insert tabs extending from opposite sides of the removable insert, each insert tab being configured to engage with at least one of the inner sidewalls forming the opening of the cover.

A reel seat for a fishing rod having a rod blank with a butt end and a rod tip includes a body with proximal and distal ends and a middle portion, with only the proximal end being directly secured to the rod blank, the middle portion and distal end of the body being spaced from an exterior surface of a portion of the rod blank passing therethrough, a first opening in a bottom side of the distal end of the body allowing a user's index finger to directly contact the rod blank, and a second opening in the bottom side of the middle portion of the body allowing at least one of the user's ring and pinky fingers to directly contact the rod blank, and an integral connection section separating the first and second openings from one another.

An embodiment of a valve seat for a pumping assembly includes a body having a bore. In addition, the valve seat includes an embedded structure embedded in the body so as to define, at least partially, a strike face of the valve seat. The strike face extends circumferentially about the bore, and the embedded structure includes a gradient material structure having a first material, a second material spaced from the first material, and a compositional transition region between the first material and the second material.

The invention belongs to the technical field of batteries, and discloses a battery top cover which comprises a plate body assembly and a pole assembly, the plate body assembly is used for covering an opening of a battery cell shell, the direction from the battery cell shell to the plate body assembly is configured to be a first direction, and the plate body assembly comprises a first plate body, a second plate body and a first reinforcing part; the first plate body is perpendicular to the first direction, a reinforcing part is arranged on the edge of the side, facing the first direction, of the first plate body, one side of the second plate body is connected with the reinforcing part, the second plate body inclines in the direction away from the first direction from the side facing the reinforcing part to the side away from the reinforcing part, and the first reinforcing part is connected with the reinforcing part. According to the battery top cover, at least one of the first reinforcing piece and the reinforcing part protrudes in the first direction, a pole assembly penetrates through at least one of the first plate body and the second plate body, the first reinforcing piece protrudes out of the pole assembly in the first direction, and the plate body assembly of the battery top cover is high in structural strength and can also play a role in protecting the pole assembly.

An elastic mattress having springs includes one or more elastic modules and one or more bottom layers, the one or more elastic modules includes a plurality of pre-compressed springs with middle parts disposed with connecting members, the connecting members are divided into first connecting members and second connecting members, side surfaces of the first connecting members are provided with first connecting structures, side surfaces of the second connecting members are provided with second connecting structures, the first connecting members and the second connecting members are respectively disposed on waist parts of different pre-compressed springs, one of the first connecting members of a first one of the plurality of pre-compressed springs is connected to one of the second connecting members of a second one of the plurality of pre-compressed springs, and bottom surfaces of the plurality of pre-compressed springs are connected to the one or more bottom layers.

A golf club head including a removable weight assembly is disclosed herein. In accordance with the presently disclosed technology, the golf club head may include a striking face portion, a back portion, and a removable weight assembly. The removable weight assembly may include a removable weight and a cover portion.

The disclosure relates to the field of outdoor use trailer, in particular discloses a side suspender non-sliding trailer, comprising a first vertical pole and a second vertical pole, a left and right connecting rod group is arranged between the first vertical pole and the second vertical pole, a bottom connecting rod group is arranged at the bottom of the first vertical pole and the second vertical pole, a first fixing sleeve and a second fixing sleeve are fixed at the top and bottom of the first vertical pole and the second vertical pole, and a sliding sleeve is arranged outside the first vertical pole and the bottom connecting rod group is arranged with a side suspender. The disclosure through the matching of the left and right link group and the sliding sleeve, so that the bottom of the trailer is lowered when folding, it can also ensure its structural stability.

A wagon is adjustable between a collapsed configuration, an intermediate configuration, and an expanded configuration. The frame has a vertical pole assembly arranged at each of the four corners of the frame. Each of the vertical pole assemblies comprises an extension member telescopically arranged with a fixed member and a slider operatively slidingly connected with the fixed member. When the frame is altered from the expanded configuration to the intermediate configuration, the slider of each vertical pole assembly moves away from the distal end of the fixed member toward the proximal end of the fixed member and the extension member moves from the raised position to the lowered position. When the frame is altered from the intermediate configuration to the collapsed configuration, the extension member moves from the lowered position to the raised position with the slider at or adjacent to the proximal end of the fixed member.

A bed sheet holder includes a bracket and sleeving members. The bracket includes a bottom plate, supporting members arranged on the bottom plate, and first sliding blocks arranged on the supporting members. A first sliding slot is defined in the sleeving member. At least one end of the first sliding slot is a first opening. The first sliding block is arranged inside the first sliding slot. When the bracket is used in conjunction with a bed sheet, the bottom plate is pressed under a mattress, the supporting member is attached to an outer side wall of the mattress, the first sliding block is exposed on an outer side of the mattress, and the sleeving member is sleeved on the first sliding block through the first sliding slot, thereby pressing one part of the bed sheet between the sleeving member and the first sliding block to fix the bed sheet.

A batch feeding-based multi-stage screening device for granular materials, comprising a housing (1). A quantification assembly (2) is installed at the top of the housing (1), a dust removal assembly (3) is installed outside the housing (1), and an anti-blocking assembly (6) is installed inside the housing (1); the dust removal assembly (3) comprises a mounting plate (305) and a fixed column (304); the mounting plate (305) and the fixed column (304) are both fixedly connected to the outside of the housing (1), a rack plate (306) is slidably connected to the outer surface of the mounting plate (305), a movable rod (311) is fixedly connected to the bottom end of the rack plate (306), a rubber piston (312) is fixedly connected to the bottom end of the movable rod (311), and a filter box (301) is fixedly connected to the outside of the housing (1). A large amount of dust on the surface of rice grains can be adsorbed, filtered and removed by means of the dust removal assembly, thereby improving the quality of rice.

The invention discloses an asphalt concrete pavement early crack detection method and system, and the method comprises the steps: S1, obtaining pavement three-dimensional point cloud data to form a texture image, recognizing a gray level change region, and marking the region as a suspected crack region as a first crack degree; s2, segmenting a suspected crack region through a deep learning model Mask R-CNN, determining a crack type, and measuring geometric parameters of the crack as a second crack degree; s3, in combination with historical data and environmental factors, the development trend and the damage degree of the crack are evaluated through a machine learning model to serve as a third crack degree; s4, establishing a crack detection mechanism, and recording and tracking the state change of the early asphalt concrete pavement crack; and S5, setting and comparing crack state evaluation thresholds, and performing early warning when the crack state evaluation thresholds exceed a threshold boundary mechanism. According to the invention, an early crack state tracking and early warning mechanism is realized, and the efficiency and quality of pavement maintenance work are improved.

The invention discloses an environment-friendly low-pressure pulse bag type dust collector, and relates to the technical field of bag type dust collectors. Comprising a dust remover and a dust collecting hopper, a filter bag frame is installed in the dust remover, multiple sets of filter openings are formed in the outer wall of the filter bag frame, filter bags are fixed to the bottoms of the filter openings, bag cages are installed on the inner walls of the filter bags, dust removing assemblies are arranged on the inner walls of the bag cages, threaded rods are rotatably installed at the bottom of the filter bag frame, moving seats are installed on the outer walls of the threaded rods, and cleaning assemblies are arranged on the outer walls of the moving seats. Electric push rods are symmetrically mounted on the two sides of the inner wall of the dust remover, push blocks are fixed to the extending ends of the electric push rods, gravity sensors for controlling the extending lengths of the electric push rods are mounted on the two sides of the top of the filter bag frame, a limiting plate is fixed to the inner wall of the dust collecting hopper, a dustproof baffle is slidably mounted in an inner cavity of the limiting plate, and a vibration assembly is arranged on the outer wall of the dustproof baffle. By arranging the ash removal assembly, the utilization rate of pulse airflow is increased, and the cleaning effect of the bottom of the filter bag is further enhanced.

A method and apparatus for evaluating vulnerability of monopile foundations of offshore wind turbines are provided. The method includes collecting offshore wind farm location data and wind-wave characteristic data, and simulating a wind-wave time course according to the offshore wind farm location data and the wind-wave characteristic data; determining a wind-wave dynamic load based on the wind-wave course; obtaining lateral soil resistance data of monopile foundations with a plurality of rock-soil strength parameters, and inputting the wind-wave dynamic load into a 3D finite element model; using the lateral soil resistance data of monopile foundations with a plurality of rock-soil strength parameters as boundary conditions of the 3D finite element model; and giving a limit state of monopile foundations, and determining vulnerability of monopile foundations on basis of the dynamic response result of the monopile foundations and the limit state of monopile foundations.

A battery pack according to one or more embodiments of the present disclosure includes a plurality of battery cells; and a housing including a bottom member, a plurality of side walls, and a top member, the bottom member, the plurality of side walls, and the top member form an interior accommodation space configured to accommodate the plurality of battery cells, wherein at least one among the plurality side walls, the top member, and the bottom member are formed by a plurality of metal sheets that are roll bonded to each other, wherein at least one cooling channel is formed between bonding areas of the plurality of metal sheets, and wherein at least one crash channel is formed between bonding areas of the plurality of the metal sheets.

The invention discloses an assembling method and an assembling tool for a bottom cold shield side plate of a fusion reactor, the bottom cold shield side plate is constructed into a ring shape defined by a plurality of side plates, and the assembling method for the bottom cold shield side plate of the fusion reactor comprises the following steps: the plurality of side plates are assembled into a sector; the plurality of sectors are assembled into a ring at the Dewar base of the host hall. According to the assembly method of the bottom cold shield side plate of the fusion reactor, the plurality of side plates are assembled into the sector section, and then the plurality of sector sections are assembled into the ring at the Dewar base of the host hall, so that the bottom cold shield side plate can well meet the assembly requirement in a narrow space when being assembled; and the installation difficulty and the assembly cost of the bottom cold shield side plate are well reduced.

A foldable stroller includes a frame and wheels installed at a bottom of the frame. The frame has a folded state and an unfolded state. The frame includes a first bracket assembly, a second bracket assembly, a connecting bracket assembly and a supporting assembly. The second bracket assembly is arranged opposite to the first bracket assembly in a front-back direction. Each of two ends of the connecting bracket assembly is connected to the first bracket assembly and the second bracket assembly respectively. A connecting end of the supporting assembly is rotatably connected to the connecting bracket assembly, a sliding end of the supporting assembly is slidably connected to either the first bracket assembly and the second bracket assembly or the connecting bracket assembly.

The invention belongs to the technical field of concrete crack detection, and particularly discloses and provides a high-strength concrete construction crack detection system and method.The system comprises a multi-parameter cooperative sensing module, a construction crack recognition module, a crack risk analysis module and a crack early warning processing module. According to the invention, the temperature, humidity, strain and multispectral image data from a plasticity stage to a hardening stage are collected in real time through the multi-parameter cooperative sensing module, and crack characteristics are extracted by combining staged differential signal processing and a deep convolutional neural network, so that the detection precision of micro cracks and internal defects is remarkably improved. Meanwhile, multi-physics field data are fused, a crack evolution risk rate model is innovatively constructed, dynamic probability prediction before crack initiation is achieved, a grading disposal scheme is automatically triggered through risk grade division and a progressive early warning mechanism, drying shrinkage and temperature crack causes are effectively distinguished, the prevention and control efficiency is remarkably improved, and the method is suitable for large-scale popularization and application. And full-life-cycle accurate monitoring of the high-strength concrete is supported.

A clip is convertible between a clip configuration to hold hair and a comb configuration to comb through hair.