68results about How to "Improve structural performance" patented technology

The application discloses a text generation method and device, equipment, storage medium and program product. The method represents input data as a graph structure, uses a graph neural network to perform embedding learning on the graph structure, captures global information (i.e., global latent variables) and local information (i.e., local latent variables) between the input data, can more effectively organize and utilize complex data structures, can extract information at different levels, and improves the logical coherence and structure of the model when generating text. A global planning module is used to generate sentence topics and main content representations, and a refinement generation module is used to generate content representations of the sentences, which can capture and integrate information at different levels, significantly improving the inter-sentence coherence and consistency of the generated text. The expression mode of each sentence is adjusted according to the local latent variables, realizing diversified expression of the sentences, and a text that is both coherent and consistent and has various styles can be generated, meeting the demand for diversified text in actual applications.

This utility model relates to a cleanroom air conditioning and dust removal system, belonging to the field of cleanroom technology in the pharmaceutical industry. The system includes a combined cleanroom air conditioning unit, a bag filter, an air supply duct network, a high-efficiency filter air outlet, a return air duct network, a dust removal exhaust hood, a dust removal static pressure box, a dust concentration sensor, and a controller. The bag filter is rigidly connected to the air conditioning unit side-by-side and fixed to the floor of the equipment room, eliminating interference from the equipment to the cleanroom. The outlet of the bag filter is directly connected to the mixing section of the air conditioning unit through the return air duct network, forcibly reusing the dust-removed air as return air. The dust concentration sensor is embedded in the inner wall of the dust removal static pressure box, directly exposed to the dust-laden airflow channel. This application significantly reduces the air conditioning cooling and heating load by physically reducing the demand for fresh air; the centralized layout of the equipment room frees up space in the cleanroom, improving the convenience of operation and maintenance; and the closed-loop dust collection and multi-stage filtration ensure the stability of cleanliness levels D and above.

The utility model discloses a novel multifunctional server cabinet, including bottom rail, the bottom rail is provided with the same structure of placing middle cabinet side by side, placing side cabinet is provided with on the both sides of placing middle cabinet, placing middle cabinet includes base, the both sides and intermediate position of base all are provided with stand, the outside of stand is provided with cabinet door, the interval of stand is provided with layer board, is provided with placing groove on the layer board, the position of stand and layer board contact is provided with support baffle, two two corresponding of support baffle and between be provided with structure beam, the utility model discloses simple structure can realize the classified storage of server hardware, and whole cabinet body can extend with a plurality of placing middle cabinet side by side setting can, and the wide scope of application.

The invention provides a manufacturing decision system-oriented modular functional architecture and a collaborative mechanism thereof, and the structural organization and reusable collaboration of a manufacturing decision process are realized by constructing a multi-layer capability system, a functional module system and a standardized behavior interface. The architecture comprises a data interface module, a decision-making target module, a disturbance response module and a fusion decision-making module, and defines a data flow, a control flow and a trigger relationship among the modules. The system completes target expression, constraint analysis, disturbance identification and collaborative decision generation through standardized access of multi-source data such as orders, productivity, materials and processes, and forms an interpretable and executable decision link. According to the invention, modularization, interpretability and intelligent cooperation of the manufacturing decision-making system are realized, and multi-scene and multi-industry manufacturing decision-making application is supported.

The utility model belongs to the technical field of constructional engineering, and discloses a damp-proof device for preventing cracking of an ultra-large-area terrace, which comprises a base layer, a damp-proof structural layer is connected to the upper surface of the base layer, an anti-cracking protective layer is connected to the upper surface of the damp-proof structural layer, the damp-proof structural layer comprises a damp-proof coating layer coated on the base layer, and the anti-cracking protective layer is connected to the lower surface of the damp-proof coating layer. The moisture-proof coating layer is coated with the waterproof coating layer, the concrete pouring layer is arranged on the waterproof coating layer, the surface of the base layer is sequentially coated with the moisture-proof coating layer and the waterproof coating layer, good moisture-proof and waterproof protection performance is achieved, the concrete pouring layer is good in structural performance and compression resistance, the base layer is stable, and the whole is formed in a pouring mode. The floor paint coating is used in cooperation with the epoxy resin coating and the vinyl resin coating, protection treatment is conducted on the concrete pouring layer, and good abrasion-resistant and scratch-resistant protection effects are achieved.

The utility model discloses an assembly type box culvert steel formwork which comprises a steel formwork body, the interior of the steel formwork body is designed to be of a hollow structure, a hollow cavity in the steel formwork body forms an inner formwork cavity of a box culvert, and side formwork frames are fixedly installed on the outer walls of the two sides of the steel formwork body. A plurality of sets of assembling bases distributed at equal intervals are fixedly installed on the outer walls of the two sides of the front end of the side mold frame, each set of assembling bases is composed of two positioning blocks jointly, the two positioning blocks are spaced by a certain distance, and assembling wedge blocks matched with the assembling bases are fixedly installed on the outer walls of the two sides of the tail end of the side mold frame. According to the box culvert steel formwork assembling device, two steel formworks can be quickly positioned and connected, the actual using effect of quick positioning and assembling is achieved, and therefore the overall assembling efficiency of the box culvert steel formworks can be effectively improved, and the assembling efficiency of the box culvert steel formworks is improved. Therefore, the overall construction efficiency of the box culvert steel formwork can be improved, and the box culvert steel formwork has a good actual use effect.

The invention relates to a perovskite battery based on a co-doped nickel oxide-based hole transport layer and a preparation method of the perovskite battery. The perovskite battery sequentially comprises a conductive substrate, a hole transport layer, an ionic liquid modification layer, a perovskite active layer, an electron transport layer, a hole barrier layer and a metal electrode layer from bottom to top, and the hole transport layer is a Li-Nb co-doped nickel oxide thin film. According to the invention, by introducing the Li and Nb elements, the hole concentration and mobility can be synergistically improved, the energy level arrangement can be optimized, the morphology and crystallinity of the thin film can be improved, the problems of insufficient conductivity, energy band mismatch, interface recombination and the like of NiO-based HTL can be solved, and finally, the perovskite solar cell with higher efficiency, stability and reliability can be realized. The ionic liquid modification layer is also introduced, so that the interface contact between the thin film and the perovskite material can be improved, the contact side reaction is inhibited, and the service life of the perovskite battery is prolonged.

This invention discloses an integrated ultra-wideband absorbing material. From top to bottom, the material comprises a first lossy dielectric substrate, multiple lightweight interlayers, five resistive frequency selective surfaces, a metal backplate, and a composite material frame penetrating between the layers. Through slots are formed between the square rings and concentric geometric patterns of each resistive frequency selective surface. The composite material frame is embedded in these slots and continuously arranged along the thickness direction, creating a non-uniform dielectric structure within the material composed of high-dielectric and low-dielectric regions. This structure jointly regulates the resonance conditions and equivalent impedance gradient of the multiple resistive frequency selective surfaces, shifting the low-frequency absorption initiation frequency towards lower frequencies without increasing the thickness, and maintaining stable absorption performance at large oblique incidence angles. Simultaneously, the composite material frame improves the overall structural mechanical stability. This invention achieves thinness, wide bandwidth, and wide-angle absorption characteristics, making it suitable for electromagnetic stealth and electromagnetic compatibility applications.

The invention discloses a multilayer multi-pass welding path optimization method based on physical information fusion, and relates to the technical field of advanced manufacturing welding. According to the method, three-dimensional welding path planning is dimensionally reduced into a two-dimensional control point optimization problem through control point parametric modeling, a penalty function fusing gravity, thermal power, fluid dynamics and other multi-physical field effects is constructed, and a particle swarm optimization algorithm introducing a sequence constraint module and improving a speed updating formula is adopted for solving. And Monte Carlo simulation and a robustness enhancement mechanism fed back by a sensor are integrated. The technical defects that a traditional method neglects multi-physics field coupling, is prone to falling into local optimum, lacks robustness and is complex in calculation are overcome, multi-layer and multi-pass welding path planning with global optimization, high physical consistency and high engineering practicability is achieved, welding efficiency, forming precision and structural performance are remarkably improved, and the method is suitable for robot online welding scenes.

This application belongs to the field of construction machinery and discloses a disconnectable axle assembly and an all-terrain crane. The disconnectable axle assembly is used to install onto the slewing section of the chassis and includes a left axle and a right axle, distributed on both sides of the slewing section. The left and right axles are connected to the slewing section of the chassis through their respective suspension cylinders. Wheel-side drive motors are installed in the left and right axles and are used to rotate and drive the wheels on both sides. This application provides a disconnectable axle assembly with independent suspension and its wheel-side hydraulic auxiliary drive system, which can use a single engine to simultaneously drive the mechanical drive axle and the wheel-side hydraulic drive axle. Compared with the prior art, it can reduce the overall vehicle height, lower the center of gravity, improve the anti-roll capability, and make driving safer. It can also increase the wheel-side hydraulic drive force, improve the overall vehicle dynamics, and can selectively engage the wheel-side hydraulic drive force according to the vehicle's driving conditions, making control flexible and convenient.

This invention discloses a transition section structure between a UHPC bridge deck and a steel-UHPC composite bridge deck, installed on a main girder. The main girder contains several spaced transverse diaphragms. The UHPC bridge deck includes a first UHPC layer, and the steel-UHPC composite bridge deck includes a steel plate and a second UHPC layer on the steel plate. The transition section includes a UHPC layer thickness gradient section for connecting the UHPC bridge deck and the steel-UHPC composite bridge deck. The UHPC layer thickness gradient section is located between two adjacent transverse diaphragms within the main girder. One end of the steel plate extends downwards from the UHPC bridge deck, forming an extension. The lower part of the steel plate is provided with longitudinal stiffening ribs and longitudinal transition stiffening ribs, which are connected in a cooperative manner. This invention can achieve a smooth transition of structural stiffness, avoid stress concentration, and improve structural performance.

The utility model relates to the technical field of road drainage pipe network construction, in particular to a filtering structure for road drainage pipe network construction, which comprises a grid plate arranged at the upper end of a drainage pipe, and a filtering mechanism is arranged on the inner side of the drainage pipe and comprises a filtering plate arranged in the drainage pipe and located on the lower side of the grid plate. When a filtering plate of the filtering mechanism is in different stages of filtering rainwater, the filtering plate moves up and down under the support of an elastic assembly, a supporting rod moves along with the filtering plate, and a sliding column on a rotating disc at the lower end of the supporting rod is matched with a zigzag spiral groove in a fixed cylinder to rotate, so that the rotating disc and the supporting rod integrally rotate; when the filter plate moves to the bottom side, the support ring drives the scraper at the upper end of the support rod to rotate, impurities on the filter plate are rotationally concentrated, and when the filter plate moves to the bottom side, the conical nails on the support ring eject the impurities in the filter holes of the filter plate, so that the filter plate cleans the filtered impurities without external power, and the overall structural performance is improved.

The embodiment of the present disclosure provides a semiconductor structure and a preparation method thereof. The semiconductor structure comprises: a word line structure located on a substrate and extending along a first direction, the word line structure comprising word line material layers and functional layers arranged from bottom to top along a second direction and a dielectric layer located between the word line material layers and the functional layers; the word line material layer is provided with a recess extending along the first direction adjacent to one side of the functional layer, the recess is recessed from top to bottom along the second direction and the sidewall of the recess is surrounded by the word line material layer; the dielectric layer covers the surface of the recess and the top surface of the word line material layer, the functional layer covers the surface of the dielectric layer and fills the recess, the functional layer comprises a main body part and a protruding part connected from top to bottom along the second direction, the protruding part is located in the recess, the main body part is located on the protruding part and the dielectric layer covering the top of the word line material layer, and along a third direction, the size of the protruding part is smaller than that of the main body part; the word line material layer and the functional layer both comprise conductive material.

The utility model discloses a novel heliostat stand column relates to tower type solar thermal power generation technical field, including the stand column body and the flange disc of setting at the top of stand column body, and the stand column body is the tubular structure of upper and lower port through and overall hollow, and the stand column body bottom part inserts the concrete, and the stand column body bottom part is located in the concrete and is provided with the opening section, and the opening section is uniformly distributed with a plurality of weight reduction holes for improving and the concrete bonding degree on the circumference array. The stand column body of the utility model adopts the circular thin -walled pipe structure design, reduces the stand column diameter and wall thickness, and the material and transportation cost are reduced significantly. The opening section is equipped with the circumferential distribution's strip or circular weight reduction hole, can improve the bonding degree of concrete and steel stand column, reaches the purpose that steel stand column and concrete integration works, effectively promotes the torsional and tensile capacity of stand column.

The utility model discloses a kind of UHPC cable manhole covers, including the cover plate body made of UHPC, multiple groups of reinforcement cage are pre-buried along length direction in the cover plate body inside, and reinforcement cage includes longitudinal main reinforcement and transverse distribution reinforcement;Anti-skid texture is equipped on the upper surface of cover plate body, and sealing groove is equipped on the side surface of four around, and rubber sealing strip is adaptively installed in sealing groove;Hoisting connecting part is equipped on the side surface of both ends of the short side of cover plate body;Reserved mark area is on the upper surface of cover plate body, multiple groups of reinforcing ribs are arranged along width direction in the cover plate body inside, and drainage groove is set up on the upper surface, the utility model uses UHPC material, compared with traditional concrete, high in strength, good in durability, under the premise of guaranteeing cover plate strength, cover plate thickness can be appropriately thinned, effectively reduce dead weight, after testing, the utility model cover plate body compared with same size ordinary concrete cover plate dead weight lightens 30%-40%, convenient to carry and install, reduce construction difficulty and labor intensity;Meanwhile, the high durability of UHPC makes cover plate long-term use under harsh environment, reduces maintenance replacement frequency, reduces whole life cycle cost.

The invention discloses a modular building based on steel-UHPC and a construction method thereof, and belongs to the technical field of building industrialization and energy conservation. The building comprises a steel frame, a composite outer wall and an integrated composite board. The composite outer wall is composed of a keel framework and a UHPC plate, wherein the UHPC plate is of a composite sandwich structure composed of an outer face plate, a core plate and an inner face plate. The transverse steel keel end of the keel framework is welded and fixed to the steel beam of the steel frame, and rigid connection and cooperative stress are achieved. The integrated composite board is of a composite structure of a pouring-free floor support plate and an on-site foaming polyurethane heat preservation layer, and integration of heat preservation, sound insulation and structural bearing is achieved. During construction, the composite outer wall and the integrated composite board are prefabricated in a factory and are quickly assembled and welded on site. The invention has the advantages of light weight, high strength, heat insulation, sound insulation, durability, freezing resistance and fast construction, and is also suitable for areas with severe natural environments such as high cold, high temperature, high altitude, high sandstorm, high salt corrosion and the like.

The utility model discloses an electrode assembly and a battery cell, and relates to the technical field of batteries. The electrode assembly comprises a diaphragm, at least two positive pole pieces and at least two negative pole pieces; a negative pole piece is arranged between any positive pole piece and the adjacent positive pole piece; a diaphragm is arranged between any negative pole piece and the adjacent positive pole piece; the first surfaces of the positive pole piece and / or the negative pole piece are / is sunken along the stacking direction of the electrode assembly, and bulges are formed on the opposite second surfaces of the positive pole piece and / or the negative pole piece. The protrusions are arranged on the surfaces of the pole pieces, the pole pieces and the diaphragm are stacked to form the electrode assembly, and after the electrode assembly is subjected to hot pressing, the protrusions on one pole piece can extrude the diaphragm and form the grooves in the other adjacent pole piece, so that mutual fixation between the pole pieces is achieved, the phase difference between the pole pieces is prevented from changing, and the reliability of the battery is improved. And the structural stability and performance of the battery are improved.

The application relates to the field of electronic equipment, aims to solve the problem that the known electronic equipment cover design freedom is low, and processing efficiency, cost and structural performance are not easy to be considered, and provides a cover, electronic equipment and a manufacturing method thereof. The cover comprises a cover plate and an outer attached layer, and the outer attached layer is attached to one side of the cover plate. The cover plate comprises a main body part and an edge part. The outer peripheral edge of the main body part has a bonding surface. The edge part is connected to the outer peripheral edge of the main body part and is integrated with the main body part at the bonding surface. The application has the beneficial effect that the cover has high design freedom, different parts can be designed according to performance requirements, and efficiency, cost and structural performance are considered.

The application discloses a method for laser-induced in-situ growth of periodic nanostructure, comprising the following steps: step one: first growth is carried out on a substrate to form a buffer layer, and the surface of the substrate is flattened; and step two: while a plurality of laser beams are used to irradiate the substrate, the substrate is continuously grown, wherein the plurality of laser beams form interference on the substrate, and the periodic nanostructure is formed after the continuous growth for 1-4 hours. The laser interference is used to induce in-situ growth on the substrate, so that the complex processes such as photoetching, etching and cleaning are avoided, and the cost is reduced. The laser interference is used to induce positioning growth, so that the positioning is more accurate, and the accuracy is higher. Meanwhile, the opening cavity operation is avoided, so that the subsequent structure growth is not polluted, and the structure performance is better.

The invention discloses a preparation method and application of a probiotic-entrapped collagen composite nano-carrier. The preparation method is characterized by comprising the following steps: mixing a fish gelatin protein solution and a polysaccharide solution, adjusting the pH value to be alkaline, heating to carry out glycosylation reaction, and purifying to obtain glycosylated fish gelatin protein. Mixing and emulsifying the glycosylated fish gelatin protein solution serving as a water phase and the oil phase by adopting a reversed-phase emulsification method to form a W / O type emulsion; adding a probiotic bacterial suspension, uniformly stirring, adding a cross-linking agent, carrying out a cross-linking reaction, carrying out solid-liquid separation, washing, and drying, so as to obtain the probiotic-entrapped collagen composite nano-carrier; the preparation method has the advantages that precise and slow-release release in intestinal tracts is realized, and the survival rate and bioavailability of probiotics are remarkably improved.

The application discloses a torsion box and a floor beam structure with the same, which comprises a tubular body with a porous structure made of aluminum alloy and a T-shaped threaded sleeve; the circumferential side wall of the tubular body with the porous structure is a plane, and the left and right ports of the tubular body with the porous structure are irregular notches composed of multiple continuous bevels; the T-shaped threaded sleeve is vertically arranged between the upper and lower end faces of the tubular body with the porous structure, and the upper end of the T-shaped threaded sleeve is exposed outside the upper end face of the tubular body with the porous structure; the application utilizes the variable characteristics of the cross section of the aluminum extruded profile in the torsion box and the floor, uses the aluminum alloy extruded structure with the same cross section, realizes the irregular torsion box structure, greatly simplifies the torsion box structure, reduces the number of parts of the torsion box and the floor beam structure, guarantees the high structural performance, greatly reduces the process investment and the part cost, and can be used in the front and rear floor beam systems and can be expanded to the beam system structure of a larger range of the floor.

In forming a hat stringer from a flat composite layup, the cover portion is reduced in cover portion wrinkles in the formed composite hat stringer by constraining the cover portion. The cover portion is constrained by an inflatable bladder placed in the tool set for forming the composite layup.

The utility model discloses a kind of automatic compensation devices of ink amount of flexographic printing machine, including main ink supply unit, detection unit, control unit and execution unit;Main ink supply unit includes main ink barrel and ink supply pump to scraper ink cavity ink supply;Detection unit includes liquid level sensor in main ink barrel, on-line viscometer in series in ink supply pipeline and chroma meter monitoring print color;Execution unit includes the auxiliary ink barrel and solvent barrel of storing new ink and solvent, and ink replenishing pump and solvent pump respectively connected them;Control unit is microprocessor controller, receives all sensor signals and controls each pump work, the utility model is through real-time monitoring ink amount, viscosity and color data, and then automatically drive ink replenishing pump and solvent pump to carry out accurate compensation, and adjust ink parameter;Effectively solve the quality fluctuation problem caused by manual operation, significantly improve the stability and consistency of printed matter, reduce waste and dependence on skilled workers.

This invention discloses an MPVE-blended reinforced double-wall corrugated pipe, comprising a corrugated pipe and a connecting structure. A supporting flexible tube is disposed inside the corrugated pipe. The connecting structure is mounted on the corrugated pipe and includes a connector, a guide block, a sealing ring, and a guide groove. The guide groove is formed on the supporting flexible tube. The connector is installed at one end of the corrugated pipe, the guide block is installed on the connector, and the sealing ring is installed on the connector. The connector is inserted into the supporting flexible tube along the direction of the guide groove via the guide block. This invention relates to the field of pipe processing equipment technology and has the following beneficial effects: The corrugated pipe has a supporting flexible tube inside and connecting structures at both ends. Through the cooperation between the components of the connecting structure, it is convenient and quick to connect two corrugated pipes of the same size. At the same time, the supporting flexible tube inside the corrugated pipe can further enhance the structural performance of the corrugated pipe and prevent leakage due to damage to the corrugated pipe.

The utility model relates to a high pressure heat exchange device for cryogenic liquefaction processing, including the tank shell that can define heat exchange chamber, the graphite heat conduction pipe of several is inserted with according to the mode of parallel with its axis and array arrangement in the shell cavity of tank shell, and the positioning disc group of the setting station that can locate graphite heat conduction pipe is clamped in both ends of tank shell, the intermediate flow guide pipe cylinder that can form with the shell cavity of tank shell with the cooling liquid separation cavity that the positioning disc group is matched with is detachably connected in both ends of tank shell, the flow guide end cover that can communicate with the pipe cavity of graphite heat conduction pipe is still installed in the one end of intermediate flow guide pipe cylinder away from tank shell, the heat exchange pipe network is still sheathed on the pipe body of graphite heat conduction pipe in tank shell. The utility model can reduce the use cost of heat exchange structure and promote the stability of heat exchange structure under the work of high pressure environment by constructing compound heat exchange structure to promote heat exchange effect and quality.

The application discloses a kind of blade aerodynamic-structure multidisciplinary optimization design method and system based on turbulent flow discrete companion method and equivalent stress model.The method comprises the following steps: constructing the equivalent stress model of blade, calculating the maximum equivalent stress of blade using the equivalent stress model;According to the maximum equivalent stress of blade, set the objective function of aerodynamic-structure multidisciplinary optimization design;Based on turbulent flow discrete companion method, the design variables of blade are optimized, so that the objective function reaches minimum value, and the optimized blade shape is obtained according to the design variables of blade.The application can significantly improve the aerodynamic performance of blade, reduce the maximum structural stress, has the characteristics such as high efficiency and high precision, and can be widely applied to the aerodynamic-structure multidisciplinary optimization design problem of blade.

This invention discloses a prefabricated wall panel and its manufacturing process, relating to the field of prefabricated building technology. The wall panel includes a concrete slab and a steel mesh embedded within the concrete slab. The steel mesh is composed of multiple horizontally and vertically interwoven steel wires, with both ends extending beyond the concrete slab to form exposed connection ends. During manufacturing, the steel mesh is precisely fixed in a predetermined position within a mold using a mechanical locking method. Concrete is then poured, and after curing and demolding, the wall panel with exposed steel wires at both ends is obtained. This invention facilitates on-site assembly and welding by extending the steel wires at both ends of the steel mesh beyond the panel. Simultaneously, the mechanical locking method solves the problem of easy displacement of the steel mesh during pouring, significantly improving the production efficiency and positioning accuracy of the wall panel, making it suitable for industrial mass production.

The application discloses a kind of based on intravascular imaging optimization three-dimensional vascular model interframe interpolation method;Obtain the sequence image group collected by intravascular imaging technology;And each frame image in sequence image group is carried out denoising processing;Using segmentation algorithm extracts the lumen boundary in each frame image, obtains the two-dimensional profile sequence image group of vascular lumen with frame data;Interpolation times are calculated;According to interpolation times, difference image group is generated, and according to the frame data of each image in difference image group, it is inserted into two-dimensional profile sequence image group;According to the last obtained two-dimensional profile sequence image group, generate high-resolution three-dimensional vascular model.The application is obtained by the frame interpolation technology of image collected by intravascular imaging technology, and the frame distance of adjacent image is reduced, and the continuity and smoothness of three-dimensional vascular model are improved.

The utility model discloses a prefabricated pipe pile construction device adopting hoop limiters and well lattice positioning, which relates to the technical field of pile foundation construction and comprises a fixed bottom plate, a well lattice fixing frame arranged on the fixed bottom plate and a well lattice fixing frame, a prefabricated pipe pile penetrates through the fixed bottom plate, and the hoop limiters are arranged between the prefabricated pipe pile and the well lattice fixing frame. The positioning assembly is arranged between the hoop limiter and the well cell fixing frame; according to the prefabricated pipe pile construction device adopting the hoop limiter and the well lattice for positioning, deviation generated in the driving process of the prefabricated pipe pile can be avoided, so that the positioning precision of the upper section pile in the pile splicing process of the prefabricated pipe pile is ensured, the stress performance and the structural stability of the whole pile body are ensured, and then the stability of the whole building structure is improved.

This invention relates to emergency reinforcement blocks, individual units, and emergency sparse-density reinforcement methods for beam fractures, belonging to the field of building structure technology. When beam components are subjected to heavy hanging loads or their function changes without design verification, there is a lack of quantitative emergency remedies for beam reinforcement. The invention utilizes a hollow steel box comprising a box body with multiple hollow holes for concrete pouring. The top of the hollow steel box has an arc-shaped notch, on which a recessed arc-shaped piece is integrally connected. The outer wall of the arc-shaped piece is an assembly wall. The top surface of the hollow steel box has two insertion ports, and multiple folded plates are inclinedly positioned between the front and rear folded-line notches. The emergency sparse-density reinforcement method in this invention involves a quantitative configuration process based on the width between two broken rebar ends and the fracture depth in the beam fracture area, specifying the number of emergency reinforcement units, the number of subsequent rebars, and their connection positions.