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640 results about "Construction worker" patented technology
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Construction site unsafe behavior detection method and system based on image recognition
The invention discloses a construction site unsafe behavior detection method and system based on image recognition, and relates to the technical field of intelligent visual safety monitoring, and the method comprises the steps: collecting a construction image containing a constructor, carrying out the rectangular frame labeling of unsafe behaviors in the construction image, and generating a structured labeling data set; inputting the structured annotation data set into a YOLOv5 target detection model, performing training through Mosaic data enhancement and an adaptive anchor box generation algorithm, and outputting the trained YOLOv5 target detection model; based on the trained YOLOv5 target detection model, performing 128-dimensional feature vector extraction and track association matching on a detected target through a DeepSORT multi-target tracking algorithm, and outputting a track data table; and the recognition stability and behavior analysis depth of the system in a complex environment are enhanced, so that automation and intelligentization of safety management of a construction site are effectively supported.
Owner:NANJING TECH UNIV +1
Full-period safety supervision method for electric power engineering
PendingCN120746291AData processing applicationsMeasurement devicesEnvironmental resource managementPower engineering
The invention provides an electric power engineering full-period safety supervision method, and relates to the technical field of electric power engineering safety monitoring, and the method comprises the steps: collecting the electromagnetic field intensity and environment humidity data of a hot-line work region, obtaining three-dimensional space coordinates in real time through combining with a positioning tag on a safety helmet of a constructor, and dynamically calculating the three-dimensional boundary of a dangerous region; a comprehensive proximity index is constructed by analyzing the spatial relationship and the moving trend of the constructors and the dangerous boundary, the trend of the constructors approaching the dangerous area is judged in real time, and early warning is given out through the dynamically adjusted vibration frequency. In this way, the problems that in the prior art, dangerous area division is not accurate, monitoring of the movement trend of constructors is insufficient, and early warning response is single can be solved, and the safety monitoring capacity of the hot-line work environment is greatly improved.
Owner:BEIJING TIANRUIFENG ENG MANAGEMENT CO LTD
Building wall removing device capable of ensuring integrity of old bricks
The application relates to the technical field of wall body dismantling, and discloses a building wall body dismantling device capable of guaranteeing the completeness of old bricks, which comprises a surrounding wall and a bearing box, further comprises a dismantling unit arranged on the bearing box, the dismantling unit comprises a flattening component and a cutting component arranged in the bearing box; the flattening component comprises shafts arranged on the inner walls of the bearing box, deflection frames arranged on the shafts, and a plurality of connecting rods arranged on the inner walls of the deflection frames; through the dismantling unit, a construction worker can divide a wall body into a plurality of wall body units when dismantling the wall body, and slowly lays down the single wall body units one by one, and through the cutting unit, the wall body units after being laid down are cut in the horizontal direction, the wall body units are divided into strips one by one, and then the strip-shaped wall bodies are cut into single bricks, so that the safety during the dismantling of the wall body is effectively improved, the completeness of the bricks is guaranteed, the construction cost is reduced, and the utilization rate of resources is improved.
Owner:ARCHITECTURAL DESIGN & RES INST OF TSINGHUA UNIV +1
Cast-in-situ bored pile construction operation platform
The utility model relates to a cast-in-situ bored pile construction operation platform. The cast-in-situ bored pile construction operation platform comprises a platform base and a turnover platform plate. Wherein the platform base comprises a platform top plate and a plurality of supporting legs, the supporting legs are fixedly arranged at the bottom of the platform top plate, and a center hole is formed in the middle of the platform top plate; the two overturning platform plates are hinged to the upper surface of the platform top plate, the two overturning platform plates are symmetrically arranged, and the two overturning platform plates are used for covering the upper portion of the center hole; and semi-circular grooves are correspondingly formed in the opposite sides of the two overturning platform plates correspondingly, and when the two overturning platform plates cover the center hole, the two semi-circular grooves are spliced to form a circular hole. According to the cast-in-situ bored pile construction operation platform, a working platform can be provided for constructors in the construction process, the safety of the constructors is ensured, inclination or displacement in the drilling or pouring process can be prevented, the drilling and pile forming quality is improved, and the construction efficiency is improved.
Owner:CHINA MCC 2 GRP CO LTD
Shaped SPCS cavity wall assembly type combined system and construction method thereof
The invention relates to a shaped SPCS cavity wall assembly type combined system and a construction method thereof. The shaped SPCS cavity wall assembly type combined system comprises an SPCS cavity wall, assembly type ring ribs, a height-adjustable base, a laminated plate, a supporting angle adjusting piece and an adjustable supporting rod. An SPCS cavity wall and a ground anchor are arranged on the laminated slab; fabricated ring ribs are arranged in the SPCS cavity wall, and supporting angle adjusting pieces are arranged on the upper side face and the lower side face of the SPCS cavity wall correspondingly. The group of adjustable supporting rods are respectively connected with the ground anchor piece and the supporting angle adjusting piece; the SPCS cavity wall and the laminated slab are connected through a height-adjustable base, and the side face is sealed through a sealing plate. And a group of lifting lugs are arranged at the upper end of the SPCS cavity wall. According to the method, BIM modeling is adopted to extract data, intelligent machine tool machining is adopted, an SPCS cavity wall assembly type combined system is formed, the construction procedures are greatly reduced, size control is accurate, the reinforcing mode is reliable, and the forming effect is good; the method not only has a good construction error-tolerant rate, but also guarantees the safety of construction workers, and improves the efficiency of building construction.
Owner:CHINA CONSTR THIRD BUREAU GRP (JIANGSU) CO LTD +2
Construction personnel unsafe behavior detection method based on improved YOLO
PendingCN120808442ACharacter and pattern recognitionBiological modelsObject tracking algorithmSimulation
The invention discloses a construction personnel unsafe behavior detection method based on an improved YOLO, and relates to the technical field of behavior detection, and the method comprises the steps: carrying out the improvement and training of the YOLO through the marked video data, obtaining an improved YOLO model, obtaining the video data of the operation motion of a to-be-recognized construction personnel, inputting the video data into the improved YOLO model, and combining with a multi-target tracking algorithm, and carrying out the recognition of the operation motion of the to-be-recognized construction personnel. Performing quantitative analysis on the behavior types and the behavior track characteristics of the construction personnel by applying a quantitative theory, and performing evaluation in combination with a safety evaluation model constructed based on a fuzzy analytic hierarchy process to obtain a comprehensive safety score of the construction personnel. And generating an unsafe behavior detection report according to the comprehensive safety score and the behavior safety level of the construction personnel. Through the YOLO behavior detection method, the accuracy and efficiency of unsafe behavior detection of the construction personnel are greatly improved.
Owner:NANJING TECH UNIV +1
Landing door structure for elevator
The invention relates to the technical field of elevators, and discloses a landing door structure for an elevator. The landing door vertically slides on a rotating rod on the guide rail and is rotationally mounted on one surface, deviating from the floor, of the landing door; the lock rod is fixedly installed at one end of the rotating rod, and the end, away from the rotating rod, of the lock rod is driven to be attached to or away from the guide rail through rotation of the rotating rod; the balance weight plate is fixedly installed on the rod wall of the other end of the rotating rod, and the balance weight plate is used for driving the rotating rod to have the trend of driving one end of the lock rod to be attached to the guide rail all the time; the first limiting block is fixedly installed on the guide rail, and when the end of the lock rod is attached to the guide rail, the lock rod is located below the first limiting block and matched with the first limiting block to form a landing door self-locking state; when the cage door is opened and moves upwards, the door picking piece pushes the balancing weight upwards, and when the rotating rod drives the locking rod to rotate to leave the guide rail, the landing door is in an unlocked state. The floor door can be prevented from being opened by floor constructors at will.
Owner:SANMING HUAFENG MACHINERY
Construction site safety monitoring system based on drone vision
The present invention discloses a construction site safety monitoring system based on drone vision. The present invention relates to the technical field of construction site safety monitoring and solves the problem of being unable to uniformly identify whether relevant construction workers are wearing safety helmets and whether their safety helmets are worn in compliance with standards. The present invention uses a drone to monitor the construction area of the construction site in real time, and determines the monitoring screen in real time, and then selects a face image from the monitoring screen based on relevant extracted features, and then performs a preliminary analysis on the face image. By locking the center point and the point to be processed, it is identified whether the mean angle of the connecting line within the contour is consistent, and a preliminary judgment can be made as to whether the corresponding construction worker's helmet is worn abnormally, and a relevant judgment signal is generated for timely display. The monitoring method is more comprehensive and can achieve better construction site safety supervision effects.
Owner:INNER MONGOLIA JIAOKE ROAD & BRIDGE CONSTR CO LTD
Monitoring-based abnormal behavior detection method
ActiveCN120932178ACharacter and pattern recognitionFuzzy logic based systemsPattern recognitionMissing data
The invention provides an abnormal behavior detection method based on monitoring, and the method comprises the steps: detecting the gradient change range of edge light intensity blur at a highlight feature missing position, and carrying out the gradient analysis according to the change range, and obtaining the distribution features of an edge blur region; identifying missing local data points of the light field sampling points according to the distribution characteristics of the edge fuzzy region, and generating a filling result of missing data by adopting an interpolation reconstruction method according to the local data points; according to the filling result of the missing data, transient distortion characteristics caused by jitter interference of the ruffles of the reflective vest are analyzed, transient distortion distribution is obtained, and the jitter frequency and amplitude range are determined according to the transient distortion distribution; and analyzing the dynamic light intensity change and the motion trail of the construction worker to obtain the posture change constraint of the construction worker, and in combination with the optimized light field sampling distribution, obtaining the correction parameter of the posture change to the transient distortion of the light field.
Owner:JIANGSU YIAN DIGITAL INFORMATION IND DEV CO LTD
Steel frame timber form construction and wall form system
ActiveCN224281953UForms/shuttering/falseworksAuxillary members of forms/shuttering/falseworksArchitectural engineeringSteel frame
This utility model provides a steel-framed wooden formwork structure and a wall formwork system. Multiple steel frame components are spliced together vertically and horizontally using clamping assemblies. An adjustable corner mold assembly passes through an adjustment hole on a hole-position adjustment plate and connects to the vertical frame of another steel frame component, thus fixing two perpendicular steel frame components together. This modular installation of the steel frame components is achieved through the clamping and adjustable corner mold assemblies. Furthermore, by placing the adjustable corner mold assembly in adjustment holes at different positions on the hole-position adjustment plate, the distance between two parallel steel frame components can be adjusted. This allows construction workers to flexibly adjust the number and splicing method of the steel frame components according to different wall sizes and shapes, facilitating installation and disassembly, accelerating construction progress, improving construction efficiency, and adapting to the construction requirements of various building structures.
Owner:广州宏途设备工程有限公司
Anti-false tightening bolt ball node with visualization of bolt tightening process and construction method thereof
Owner:HARBIN INST OF TECH
Suspended work platform equipment for high-rise building exterior walls and construction method thereof
ActiveCN116480121BClimate change adaptationScaffold accessoriesArchitectural engineeringHanging basket
The present invention discloses a suspended work platform device for the exterior wall of a high-rise building and a construction method thereof, comprising: an anchoring structure installed on the inner side of the exterior wall of the high-rise building, comprising a circumferential guide rail and a slide rod, the circumferential guide rail being arranged along the circumference of the building structure, the slide rod being slidably arranged on the circumferential guide rail, and the slide rod being equipped with a magnetic attraction member; a support member for mounting the exterior wall work equipment and arranged on the outer side of the high-rise building exterior wall, the support member having adjustable length mechanical arms rotatably mounted on opposite sides thereof, the mechanical arms being equipped with electric suction cups, and the side of the support member facing the exterior wall being equipped with a magnetic member for magnetic attraction to the magnetic attraction member; and a safety cable, one end of the safety cable being connected to the support member, the other end of the safety cable being fixed to the upper portion of the high-rise building. The present invention solves the problem that conventional outdoor work on the exterior wall of a high-rise building utilizes devices such as hanging baskets to carry construction workers for work, which presents a significant safety hazard.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD
Shield tunnel limited space safety operation protection early warning system
The utility model provides a shield tunnel limited space safety operation protection early warning system, comprising RFID tags carried by constructors and corresponding to the constructors one by one; an identity management server; the environment monitoring system is provided with a plurality of sensor assemblies and used for monitoring the temperature, humidity and air quality in the limited space of the shield tunnel; the UHF card reader is arranged at the entrance of the shield tunnel and used for preliminarily positioning the identity of a constructor; the face recognition system is used for carrying out face image acquisition and face recognition and registration on the entering constructors and counting the total number of the constructors; the environment safety early warning system is used for receiving the temperature, the humidity and the air quality which are monitored in real time and performing construction early warning according to a safety threshold range; and the monitoring center is connected with the identity management server, the face recognition system and the environment safety early warning system, is provided with a display screen, and is used for displaying data monitored by the environment monitoring system and early warning information.
Owner:JSTI GRP CO LTD +2
A mobile video monitoring device
ActiveCN224414811UExpand the scope of monitoringImprove work performanceVideo monitoringSurveillance camera
The utility model relates to monitoring equipment technical field discloses a movable video monitoring device, including installation ring, the installation plate of rotation setting in the inside of installation ring and set below the monitoring camera of installation plate, including: connecting mechanism, including fixed in the both sides of monitoring camera and the connecting shaft of the connecting plate of tail end rotary connection for driving monitoring camera to rotate, the fixed plate of fixed between two connecting plates and the linkage block for driving monitoring camera to carry out displacement and fixed in fixed plate top side, the utility model discloses reasonable in structure can monitor the construction worker's construction operation and construction progress, can carry out adaptive adjustment to the angle and position of monitoring camera, can conveniently construction worker to monitoring camera carries out dismounting maintenance, and work performance is high, and convenient to use.
Owner:CCCC SECOND HARBOR ENGINEERING CO LTD
A sliding jig device for assembling a large-span steel structure arched roof
This utility model relates to a sliding frame device for assembling a large-span steel arched roof structure. It includes a frame sliding track assembly, a frame sliding support assembly, a main frame assembly composed of multiple tower crane standard sections, an adjustable top component, a traction mechanism, and a fixing mechanism. The frame sliding support assembly is installed on the frame sliding track assembly and can slide on it. The main frame assembly is mounted on the frame sliding support assembly. The adjustable top component is installed above the main frame assembly. The traction mechanism is installed at the end of the frame sliding track assembly to connect to the main frame assembly and adjust and fix its position. This sliding frame device has an ingenious structure, is easy to operate, and has a high degree of automation. It effectively reduces the workload of working at heights, improves installation efficiency, reduces labor costs, significantly lowers the risks of working at heights, and enhances the user experience for construction workers.
Owner:ZHEJIANG CONSTR ENG GRP CO LTD
Ground dust removal device for construction site
The invention discloses a construction site ground dust removal device which comprises a sweeping unit which comprises a sweeping assembly used for rotationally sweeping dust on the ground and an adjusting assembly arranged on one side of the sweeping assembly and used for adjusting the angle of the sweeping assembly to complete suction removal of raised dust generated in the sweeping process; the dust suction unit comprises an exhaust pipe arranged on one side of the sweeping assembly and used for providing a negative pressure state for the interior of the sweeping assembly, a dust collection barrel arranged at an air outlet of the exhaust pipe and used for filtering sucked air, and an exhaust fan arranged on the upper portion of the dust collection barrel and used for continuously exhausting air in and out of the dust collection barrel. And by pulling the adjusting assembly, the adjusting assembly drives the sweeping assembly to rotate by a certain angle relative to the exhaust pipe, it is ensured that the exhaust opening in the bottom of the sweeping assembly rapidly and timely sucks raised dust into the dust collection barrel, and the situation that the raised dust escapes all around and threatens the body health of constructors is avoided.
Owner:KESHENGPENG ENVIRONMENTAL TECH CO LTD
Steel structure high-altitude operation safety protection device and steel structure high-altitude operation device
ActiveCN224338594UScaffold accessoriesBuilding support scaffoldsArchitectural engineeringOperation safety
This utility model relates to the field of precast steel structure component construction technology, and particularly to a safety protection device for high-altitude operations on steel structures and a high-altitude operation device for steel structures. The device includes a base plate, which provides a support platform for construction workers. The base plate has a connecting part for detachable connection to a fastening frame on a steel structure column. The edges of the base plate are provided with protective components to prevent workpieces and construction workers from falling. These protective components surround the steel structure column and the base plate. This utility model, by setting a base plate on the steel structure column, allows construction workers to stand on the base plate for construction, thus providing support and preventing the danger of workers being suspended in the air by cranes. The protective components at the edges of the base plate can catch accidentally falling workpieces or construction workers, ensuring safety during the construction process.
Owner:ROAD & BRIDGE INT CO LTD +1
Novel attached type anti-falling device for lifting scaffold
The utility model relates to the technical field of building construction, and discloses a novel attached type lifting scaffold anti-falling device which comprises a support, a wall connecting piece is arranged on the support, a guide frame matched with a guide rail of a scaffold in a sliding mode is connected to the support, and a guide mechanism, an anti-falling mechanism and a supporting piece are installed on the support. The supporting piece is arranged at the top end of the support, the multiple guide mechanisms are arranged at the two ends of the support, the multiple anti-falling mechanisms are arranged, the multiple guide mechanisms are connected to the top ends of the multiple anti-falling mechanisms respectively, and an elastic piece separated from the guide rail is further arranged in the support. By means of the wall connecting piece on the support, the stability of constructors can be guaranteed and falling prevention can be achieved under the condition that the scaffold is not stable, the guide mechanism and the falling prevention mechanism on the support can increase falling prevention protection, the reliability of the falling prevention device is improved, the safety of the constructors can be guaranteed, accidents are reduced, the structure is simple, and the practicability is high. Good market application values are realized.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD
System and method for intervening unsafe behaviors of building workers under guidance of latent variables
InactiveCN120806679AData processing applicationsDesign optimisation/simulationExperimental laboratoryIntervention effect
The invention discloses a latent variable guided unsafe behavior intervention system and a latent variable guided unsafe behavior intervention method for building workers. A decision laboratory-interpretation structure model is used for analyzing the mutual relation between unsafe behavior factors such as unsafe psychology, unsafe physiology, safety ability and unsafe motivation of the building workers and safety culture, safety atmosphere and safety education. And determining an action path of the intervention measures on the influence factors. And constructing an unsafe behavior occurrence mechanism and intervention mechanism model in combination with the structural equation model. And then simulation research and analysis of the action effect of the intervention strategy are carried out by using system dynamics, and the internal occurrence mechanism and intervention effect of the unsafe behaviors of the building workers are deeply analyzed. The method has the advantages that the relation between unsafe behavior occurrence and intervention paths of workers is studied statically, the unsafe behavior occurrence and intervention process is studied dynamically, the safety management level in the building construction process is improved, and safety accidents are reduced.
Owner:XINJIANG UNIVERSITY
Construction personnel intelligent scheduling method and system
The embodiment of the invention provides an intelligent scheduling method and system for constructors. According to the method, firstly, original data including work order data, personnel state data and external environment data are collected in real time, and a data foundation is laid for subsequent decision making; then generating an order dispatching scheme based on a pre-trained scheduling strategy model, and preliminarily screening out candidate schemes conforming to a global optimization direction; the reward value of each scheme is calculated through a preset reward function, so that resource waste caused by single-dimensional optimization is avoided; and finally, executing the target scheduling scheme, and combining an execution result, historical work order data and a real-time network state optimization strategy model to realize accurate matching of skills of construction personnel and work order requirements and global balance of personnel load, thereby remarkably improving resource configuration efficiency.
Owner:INSPUR TIANYUAN COMM INFORMATION SYST CO LTD
Tunnel widening section lining trolley
ActiveCN224200664Ushorten the lengthreduce weightUnderground chambersTunnel liningArchitectural engineeringStructural engineering
Owner:YUNNAN JINGAN CONSTRUCTION MACHINERY CO LTD
A PC stair hoisting positioning method and system, storage medium and intelligent terminal
The application relates to a PC stair hoisting positioning method and system, a storage medium and an intelligent terminal, relates to the field of PC components, and comprises the following steps: acquiring shooting image information; analyzing arc characteristic information and whole-circle characteristic information in the shooting image information; judging whether the whole-circle characteristic information exists; if the whole-circle characteristic information exists, vertically falling the PC stair until the whole-circle characteristic information does not exist; if the whole-circle characteristic information does not exist, horizontally moving the PC stair until the whole-circle characteristic information appears; and falling a preset standard falling height information when a boundary line of the shooting image information and the whole-circle characteristic information coincide. The application improves the problem that the falling process of the hoisted PC stair needs to be commanded by a construction worker, threatening the personal safety of the construction worker, and has the effects of reducing the hidden danger to the personal safety in the PC stair hoisting process and improving the safety and intelligentization of the PC stair hoisting process.
Owner:BOJIAN CONSTR ENG CO LTD
Safety protection equipment state evaluation method and device, electronic equipment and storage medium
The application discloses a kind of safety protection equipment state evaluation method, device, electronic equipment and storage medium, it is related to safety monitoring technical field, specifically can be applied to financial and medical field, can make the insurance enterprise that provides engineering risk and other risk can master construction safety dynamic in time, make medical institution can discover whether the protective clothing is damaged in time, provide strong guarantee for the safety of construction workers or medical staff.The method comprises: real-time acquisition is carried out safety protection equipment state evaluation video stream, feature point extraction is carried out to safety protection equipment in video stream, and effective feature point set is generated;The posture of target object is identified to the object posture data that is obtained in video stream wearing safety protection equipment, and effective feature point set is carried out three-dimensional feature fusion processing, and equipment real-time three-dimensional feature point set is obtained;Difference evaluation is carried out to equipment real-time three-dimensional feature point set and equipment standard three-dimensional feature, and state evaluation result is obtained and output.
Owner:CHINA PING AN PROPERTY INSURANCE CO LTD
A method of determining whether a safety line is being misused
ActiveCN116758446BTelevision system detailsCharacter and pattern recognitionTesting MethodsAlarm device
A method for determining whether safety ropes are being used improperly is disclosed, relating to the field of power construction safety. To address the problem that existing technologies rely on manual observation to determine whether safety ropes are being used improperly, which can easily lead to oversights or misjudgments due to the large number of construction workers on site, potentially causing accidents, this invention utilizes an AI trainer to train an AI recognition module. This module identifies construction workers, safety ropes, the position of the safety rope on the worker, and the rope's attachment point. When a scenario of improper safety rope use is detected, the AI recognition module transmits an alarm signal to an alarm device. This method uses an AI recognition module for accurate identification, replacing manual observation, avoiding oversights or misjudgments, thus preventing safety accidents and ensuring the safety of construction workers. This invention is applicable to the field of power construction safety.
Owner:STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1
A soil transfer device for excavation during the construction of a sewage pipeline network in a roadway.
This utility model relates to the technical field of earthmoving equipment, specifically disclosing an earthmoving device for excavation in tunnel sewage pipe network construction. It includes a first base and a second base connected by a horizontal conveyor belt. A drive unit for driving the horizontal conveyor belt is installed inside the first base. It also includes a conveyor box containing a lifting conveyor belt with its outlet located above the horizontal conveyor belt, used to transfer excavated soil onto the horizontal conveyor belt. The horizontal conveyor belt covers a linear construction area. The conveyor boxes are placed at the locations requiring soil transfer according to the construction area. Construction workers use shovels and other tools to transport the excavated soil into the conveyor box. The lifting conveyor belt inside the conveyor box transfers the soil onto the horizontal conveyor belt, which then transports the soil out of the tunnel, completing the work of transferring excavated soil from narrow tunnel construction. By using a directional horizontal conveyor belt for transfer, the efficiency of excavated soil transfer is higher.
Owner:SINOHYDRO BUREAU 5
Construction worker safety behavior real-time analysis method and system based on edge computing
ActiveCN120947720BCharacter and pattern recognitionUsing optical meansReal time analysisEdge computing
The present application relates to the technical field of safety behavior analysis, in particular to a construction worker safety behavior real-time analysis method and system based on edge computing, which generates a person-rope association mapping table according to a person identifier and a rope identifier; when two or more safety rope objects are determined to have a cross-shading event according to object data of a monitoring video stream, a high-risk event signal is generated, and a control instruction is sent to a target camera unit to obtain a supplementary perspective video sequence of the safety rope objects that have the cross-shading event; a determination result is obtained by analyzing the supplementary perspective video sequence, and when the determination result is a physical cross, the safety rope object is marked with a physical cross risk identifier in the person-rope association mapping table; when any safety rope object associated with a construction worker object in the person-rope association mapping table is marked with a physical cross risk identifier, a safety state abnormal signal is output; the nature of the safety rope cross-shading event can be accurately distinguished, and potential safety risks can be discovered in a timely manner.
Owner:ZHONGHENGYUE TECHNOLOGY DEVELOPMENT (GANSU) CO LTD
Fireproof skirt wall sealing system with thermal insulation for building curtain wall
This utility model discloses a fireproof skirt wall sealing system for building curtain walls, relating to the field of fireproof sealing construction technology for curtain walls. It includes a fireproof skirt wall and an upper inter-floor fireproof seal. The upper part of the fireproof skirt wall is fixed to a beam, and the lower part is fixed to the exposed frame horizontal bars at the bottom of the curtain wall. The upper inter-floor fireproof seal is connected to the floor slab and the upper exposed frame horizontal bars of the curtain wall on both sides along its width. The fireproof skirt wall includes several outer protective structures, which are overlapped and fixed along their length. Insulating rock wool is fixed to the side of the outer protective structures facing the curtain wall. This utility model, by setting up a fireproof skirt wall with several outer protective structures and fixing insulating rock wool to the side of the outer protective structures facing the curtain wall, allows the insulating rock wool and outer protective structures to be prefabricated in the factory and then directly installed. Construction is simple, and no dust or scrap material pollutes the environment on-site, posing no harm to construction workers.
Owner:LIAO NING DE SI TE JIAN ZHU CAI LIAO ZHI ZAO YOU XIAN GONG SI
Anti-falling safety belt
The invention relates to the technical field of safety belts, and discloses an anti-falling safety belt which comprises a safety belt body, a wire box is fixedly mounted at the front end of the safety belt body, a rotating shaft structure is rotatably connected to the middle of the wire box, and recycling structures are fixedly mounted on the front side and the rear side of the wire box. A locking structure is fixedly installed at the end, away from the wire box, of the recycling structure, and an external connecting belt is fixedly installed in the middle of the rotating shaft structure. The rotating plate is arranged on the rotating shaft structure, the pulling-out speed of the external connection belt is high, then the rotating speed of the rotating shaft structure is driven to be increased, at the moment, the centrifugal force received by the lock teeth is large, the lock teeth can be thrown out of the rotating plate and clamped on the locking ring, then the locking ring and the rotating plate are locked, the rotating shaft structure cannot continue rotating, and extending of the external connection belt is stopped; the external connecting belt is locked at the moment of falling, so that the overall falling distance of constructors is shortened, the number of times that the constructors make contact with a building in the falling process is reduced, and safety is improved.
Owner:ZHEJIANG JIAXING ZHONGDA CONSTRUCT CO LTD
Safety protection device (for pipeline construction in narrow trenches)
1. Name of the product in this design: Safety protection device (for pipeline construction in narrow trenches). 2. Purpose of this design: This design is placed in a narrow trench to provide safety protection for construction workers during subsequent pipeline construction in the narrow trench. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:ANHUI WATER CONSERVANCY DEV CO LTD