350 results about "Safety net" patented technology

The invention provides an intelligent blind person navigation system, and relates to the technical field of intelligent wearable blind person navigation, the intelligent blind person navigation system comprises a multi-mode sensing unit, an A I decision center, a bidirectional feedback module and an emergency response system.According to the intelligent blind person navigation system, through a three-layer sensing architecture of a dual-light fusion camera, a laser radar and an ultrasonic array, 94% of obstacle detection rate is still kept under 5lux low illumination, and the blind person navigation efficiency is improved. And the effective detection distance reaches 8 meters. The semantic segmentation algorithm enables the detection rate of the suspended obstacle to rise from 12% to 92%, and the recognition error of the glass door in the underground garage scene is only 2.1 cm. And a multi-sensor space-time alignment technology is adopted, so that the false alarm rate in a complex scene is reduced from 25% to 3.2%, and all-weather and full-height accurate sensing of obstacles is realized. A biological characteristic + environmental risk multi-stage triggering mechanism is adopted, automatic alarming and shared positioning are performed within 2.1 seconds when a user falls down, and the success rate of rescue for falling down of the underground garage is increased from 62% to 100%. An environment video with positioning is automatically recorded without operation timeout, and a'prevention-early warning-rescue 'closed-loop safety net is constructed.

The present invention discloses a climbing scaffold with one or more working levels, which includes an anchoring unit with main brackets supporting at least one assisting mechanism that is integral with a formwork unit; the anchoring unit is anchored to a wall and additionally, a second level can be attached, which includes a telescopic structure supporting a safety net for falling objects. The climbing scaffold includes passage or work platforms with safety measures such as guardrails conveniently arranged, and furthermore, the climbing scaffold is primarily stiffened with transverse beams.

An energy absorption device for absorbing at least a portion of impact energy occurring in an impact of an impact body in a safety net construction includes at least one cable guiding unit forming at least one cable receiving region for receiving and / or guiding at least one cable, and further includes at least one energy absorption element, arranged in the cable receiving region and forming at least one friction surface for the guided cable, the energy absorption element being configured, if a force inducing movement of the cable across the friction surface is exerted on the cable, to selectively absorb at least a portion of energy the force created via substantial deformation and / or abrasion of the friction surface. A cable brake, particularly a block-and-tackle cable brake, includes an energy absorption element of the energy absorption device, which is arranged at the deflection element on a side facing toward the cable.

The invention discloses a sliding type safety flat net protection device for net rack bulk and a construction method thereof.The sliding type safety flat net protection device comprises a plurality of hanging pipe joints, a hanging pipe joint is detachably hung on a bolt ball on a lower chord of a net rack, and the hanging pipe joints on a row of bolt balls on the lower chord are coaxially arranged; a passing gap is formed in the pipe wall of the lower side of the suspension pipe joint; the sliding rails are arranged in the at least two adjacent suspension pipe joints in a sliding mode, a suspension plate is formed at the bottom of each sliding rail, and the suspension plates are arranged in the passing gaps in a sliding mode; the lower portions of the hanging plates extend to the position below the passing gap, and the safety net is connected to the hanging plates on at least two adjacent rows of bolt balls. The problems that a traditional net rack protective net is complex in tensioning, cannot move and is low in installation efficiency are solved.

The utility model relates to the technical field of dense-mesh screen production, in particular to a dust removal device based on dense-mesh screen production, which can automatically perform reverse cleaning on a filter cartridge, is simpler to operate, and improves the filtering effect of the filter cartridge. Comprising a processing machine tool, a fixing frame, a filter box, four supporting rods, a dust suction hood, an air guide pipe, a filter cylinder and a motor, supporting legs are arranged at the bottom end of the processing machine tool, the fixing frame is installed on the right side of the top end of the processing machine tool, and the filter box is installed at the top end of the fixing frame through the four supporting rods; the motor is mounted at the top end of the filter box, the output end of the motor penetrates through the top end of the filter box and is connected with the filter cartridge through a connecting frame, the top end of the filter box is communicated with an exhaust pipe, the exhaust pipe is communicated with the filter cartridge, and the output end of the exhaust pipe is connected with an air pump.

The invention is suitable for the field of safety net production, and provides a safety net warp knitting machine which comprises a warp knitting machine body, a body integrated controller, a tension detection unit, a needle bed execution unit, a knit defect monitoring unit and an execution driving unit. The core is that an intelligent tension dynamic adjusting module, a mesh specification parameterization adaptation module and a multi-mode knit defect early warning and self-repairing module are arranged in the controller; according to the invention, the intelligent tension dynamic adjustment module corrects control parameters in real time through a self-adaptive PID algorithm, and tension fluctuation is controlled within + / -0.5 N; the mesh specification parameterization adaptation module and a needle bed are subjected to closed-loop positioning through a pre-stored parameter library, and the specification switching time is smaller than or equal to 5 minutes; according to the multi-mode knit fault early warning and self-repairing module, through image + laser sensor multi-source fusion, the knit fault detection rate reaches 100%, and the slight knit fault self-repairing success rate is larger than or equal to 90%. The three-level module cooperates with hardware, safety net weaving precision, production flexibility and intelligent level are remarkably improved, and the system is suitable for efficient batch production of safety nets of multiple specifications.

The utility model belongs to the technical field of cleaning devices, and particularly relates to a cleaning device for safety net machining, which comprises a first support plate, and a plurality of groups of guide rollers are mounted in the middle of one side of the first support plate; a net outlet is formed in the top end of the first supporting plate, and a water tank is mounted at the bottom end of the first supporting plate; a second supporting plate is mounted on one side of the water tank; one side of the bottom end of the water tank is connected with a pump body, and the interior of the spraying frame is connected with the pump body through a water pipe; the safety net is limited through the two sets of guide rollers, so that the stability of the safety net in the cleaning process is improved, distortion or swinging of the safety net is reduced, the cleaning uniformity and effectiveness are improved, at the moment, one section of area of the safety net is in a vertical state, and the section of safety net is sprayed and washed through a spraying frame; dirt and water can flow along the surface of the safety net more easily, the opportunity that the dirt and the water stay on the surface and are attached again is reduced, the contact area with suspended dirt in the water tank is reduced, and therefore the possibility that the dirt is attached again is reduced.

The invention relates to the technical field of intelligent construction safety monitoring, and discloses a traffic engineering project construction potential safety hazard intelligent monitoring and early warning system, which comprises a sensing layer, a transmission layer, an edge calculation layer, an intelligent analysis layer, a cloud decision-making layer, an application layer, a collaboration layer and an iteration layer. According to the traffic engineering project construction potential safety hazard intelligent monitoring and early warning system, through multi-dimensional monitoring (personnel / equipment / environment / process) of a sensing layer, a transmission layer security network and real-time feature processing and multi-source fusion of an edge calculation layer, a'total factor-whole process' data closed loop is constructed, construction scene fragmentation risk points (such as equipment faults and personnel violation) are covered, and the safety risk points of the construction scene are also covered. And near-end fusion analysis of data is realized through an AI edge box, accurate identification (such as linkage risks of environmental abrupt change linkage equipment abnormity) is realized in a hidden danger germination stage, the problems of missed judgment and lag in traditional monitoring are solved, and the hidden danger capturing precision and efficiency are greatly improved.

The present invention discloses a strong-wind self-unloading cantilever scaffolding windproof buckle structure, which belongs to the technical field of scaffolding windproof structure. Through each group of four safety net traction devices, the four corners of the safety net are pulled and arranged; after the safety net traction device is installed, the four corners of the safety net are fixed by a locking part, and the safety net can be opened and arranged in the square frame position formed by the staggered scaffolding, which is used for effectively protecting and isolating the construction site. In addition, by arranging springs and sliding blocks, when strong winds blow towards the safety net, the four-corner traction locking parts and the sliding blocks of the safety net overcome the supporting force of the springs, and the safety net is temporarily recessed toward the inside of the scaffolding ladder to form a gap for air to pass through; when strong winds blow towards the safety net, the safety net opens the gap, and air circulates, thereby avoiding large-scale direct force on the safety net to cause squeezing and damage to the scaffolding, thereby improving the safety of the scaffolding.

The utility model discloses a building horizontal reserved hole steel wire safety net fixing device. A connecting mechanism is arranged at the bottom of a supporting rail. A plurality of supporting shafts are arranged in the supporting track, gears or supporting wheels are installed on the supporting shafts, the gears and the supporting wheels are arranged in an area formed by the main chain, and the gears are meshed with the main chain. A guide beam is installed at the top of the supporting track and forms a hook, an auxiliary chain is fixed to the top of the guide beam, a controller and a driver are installed at the top of the supporting track, the controller is meshed with the main chain, and the driver is meshed with the main chain and the auxiliary chain at the same time. The device slides along the supporting track through the connecting mechanism, the device can be conveniently installed at the positions of structural beams at different positions and fixed, the main chain is rotationally transmitted to the auxiliary chain through the controller and the driver, so that the guide beam moves, the large-size reserved hole steel wire mesh is dragged and fixed through connection of the hook and the steel wire mesh, and operation is convenient. Labor expenditure is reduced, and safety guarantee measures are provided for installation.

The invention discloses a formwork supporting frame for silo conical shell construction and a construction method, and relates to the technical field of silo conical shell construction. The formwork supporting frame for silo conical shell construction comprises a ring beam, a bearing module and a formwork supporting frame, the bearing module and the formwork supporting frame are arranged in the ring beam, the bearing module comprises a main suspension cable and an auxiliary suspension cable, steel pipe frames and scaffold boards are arranged on the surfaces of the main suspension cable and the auxiliary suspension cable, and safety nets are laid on the surfaces of the main suspension cable and the auxiliary suspension cable and the surfaces of the steel pipe frames and the scaffold boards. The formwork supporting frame comprises a vertical rod, a bottom horizontal tube is arranged on the lower portion of the vertical rod, a longitudinal horizontal rod, a transverse horizontal rod, a horizontal diagonal bracing, a vertical diagonal bracing and an inclined rod are arranged on the outer surface of the vertical rod, a conical shell formwork is arranged on the top of the ring beam, and a conical vertex platform beam plate is arranged on the top of the conical shell formwork. According to the silo conical shell construction method, safe and efficient operation of silo conical shell construction is achieved through combination of an innovative suspension cable bearing system and a modular construction technology.

Vehicle motion management with a redundant wheel control safety net function is provided, in particular a motion support device, MSD, control unit for a heavy vehicle, the control unit being configured to control one or more MSDs associated with wheels on the vehicle, the MSD control unit being arranged to be communicatively coupled to a vehicle motion management, VMM, unit for receiving control commands including wheel speed requests and / or wheel slip requests from the VMM unit to control vehicle motion by the one or more MSDs, the MSD control unit being arranged to obtain a capability range indicative of a range of wheel behavior for which the VMM unit is allowed to influence the behavior of the wheels by the control commands, and the MSD control unit being arranged to monitor wheel behavior and detect whether the wheel behavior is outside the capability range, the MSD control unit being arranged to trigger a control intervention function if the monitored wheel behavior is outside the capability range.

The invention relates to the technical field of safety net detection, and discloses a safety net automatic detection device based on an intelligent sensor, and the device comprises a rear supporting arm which is used for fixing the rear side of a safety net, and a front supporting arm which is arranged at the front side of the rear supporting arm and is used for fixing the front side of the safety net. A fixing hoop is fixedly connected to the rear side face of the front supporting arm, a fixing rod is fixedly connected to the inner surface of the fixing hoop, a fixed sliding rod is fixedly connected to the left end of the fixing rod, and a sleeve rod is slidably connected to the surface of the fixed sliding rod. A sleeve rod drives a twisting ring and a hook to move leftwards, the transverse stretching area of the device is increased, the safety net is transversely pulled, and then force is transmitted to a transverse tension sensor, so that the tensile force which can be borne by the safety net is detected, and the quality of the safety net is ensured to have no problem.

This utility model discloses an automatic tilting and erecting machine device, aiming to solve the problems of traditional methods that rely on manual labor or large cranes to tilt and transfer heavy goods, resulting in cumbersome operation, low efficiency, and difficulty in adapting to height-restricted passages. This automatic tilting and erecting machine device is powered by electricity, and workers operate it through a control module to achieve the tilting and transfer of goods. Specifically, a lead screw motor drives the lead screw to rotate, causing the lead screw slider to move horizontally on the lead screw. Combined with the L-shaped tilting structure consisting of the vehicle body, tilting plate, and adjustable-width forks, the device, under the action of support rods, allows the goods to be tilted at any angle from 0° to 90°. The device is also equipped with a buffer and a safety net, enabling it to safely complete the integrated tilting and transfer operation.

1. Name of the product in this design: Manhole (with anti-fall net). 2. Intended use of this design: for use in manholes. 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.

The invention relates to a wire mesh (10a; 10b; 10c), in particular a safety net, comprising multiple coils (12a, 14a; 12b; 12c) which are braided into one another and at least one coil (12a; 12b; 12c) of which is made of at least one individual wire, a wire bundle, a wire strand, a wire rope, and / or another longitudinal element (16a; 16b; 16c) with at least one wire (18a; 18b; 18c) and comprises at least one first limb (20a; 20b; 20c), at least one second limb (22a; 22b; 22c), and at least one bending point (24a; 24b; 24c) that connects the first limb (20a; 20b; 20c) and the second limb (22a; 22b; 22c). The first limb (20a; 20b; 20c) runs at least at a first inclination angle (26a; 26b; 26c) with respect to a longitudinal direction (28a; 28b; 28c) of the coil (12a; 12b; 12c) when viewed in a frontal direction perpendicularly to a main extension plane of the coil (12a; 12b; 12c). When viewed in a transverse direction parallel to the main extension plane of the coil (12a; 12b; 12c) and perpendicularly to the longitudinal direction (28; 28b; 28c) of the coil (12a; 12b; 12c), the bending point (24a; 24b; 24c) runs at least in some sections at a second inclination angle (30a; 30b; 30c) relative to the longitudinal direction (28a; 28b; 28c) of the coil (12a; 12b; 12c), said second inclination angle differing from the first inclination angle (26a; 26b; 26c).

This invention relates to the field of construction safety equipment technology, specifically a support and stabilization scaffolding safety net and scaffolding, including a main frame. The main frame is arranged longitudinally at equal intervals, and each main frame is equipped with a metal mesh. In use, a locking block on one side of the main frame is inserted into the cavity column through a limiting groove. Then, an electric hoist at the top lifts and raises the main frame. Simultaneously, after one main frame is lifted to a certain height, a splicing mechanism is used to longitudinally splice another main frame with the top-lifted main frame. Following these steps, multiple main frames can be quickly and sequentially spliced ​​and raised, completely covering the outer sides of two cavity columns, thus forming a complete safety net and completing the overall installation. This makes assembly simple and convenient, ensures high safety, and improves overall assembly efficiency.

The utility model relates to the technical field of building engineering, in particular to a convenient-to-adjust protective net for construction engineering construction, and solves the problem that in the prior art, the coverage area of a protective net possibly needs to be adjusted timely due to the change of the engineering progress and the construction area or the adjustment of safety requirements on a construction site. However, the design of a traditional protective net is generally fixed, and once installation is completed, the coverage area of the protective net is difficult to change, so that in actual operation, a construction unit possibly needs to frequently replace protective nets of different sizes to meet the requirements of different construction stages. A construction engineering construction protective net convenient to adjust comprises a center rod and two moving blocks arranged at the two ends of the center rod correspondingly. By means of the flexible and adjustable design of the protective net, the defects of a traditional protective net in the aspect of adjusting the protective area are effectively overcome, and a safer and more efficient protective solution is provided for building engineering construction.

The utility model discloses a tensioning platform hanging bracket suitable for Pi-shaped piers, which comprises a frame, a stand column, an upper frame, a reinforcing inclined strut, a guardrail, a top support, a ladder stand, a bottom plate, a stiffening plate and a safety net, the lower frame comprises a lower long rod, an edge lower short rod, a middle lower short rod and a bottom short rod, and the upper frame comprises an upper long rod, an upper short rod, a connecting cross rod and a lifting lug. The guardrail is composed of guardrail vertical rods and guardrail inclined rods. The jacking is composed of a large base plate, a small base plate, a bolt and an adjustable lead screw. After being assembled and welded through a crane, the device is installed on the pi-shaped pier cross beam, the occupied space is small, extra land is not needed, and the space applicability is wide; the safety is effectively guaranteed, meanwhile, the structure is firm, disassembly is convenient, installation is rapid, stress is definite, the working efficiency is further improved, the construction progress can be effectively accelerated, the construction quality is guaranteed, and time, manpower and construction cost are saved.

The utility model belongs to the technical field of protecting nets, and particularly relates to an anti-falling blocking net which comprises an anti-falling net and a buffering net, the buffering net is arranged above the anti-falling net, pull ropes distributed at equal intervals are arranged at the top of the buffering net, connecting ropes distributed at equal intervals are arranged at the top of the buffering net, buffering assemblies are arranged on the side walls of the pull ropes, and the buffering assemblies are arranged on the side walls of the connecting ropes. The multiple connecting ropes are fixedly connected with the multiple buffering assemblies correspondingly, the connecting ropes are slidably connected with the corresponding pull ropes through the buffering assemblies, the top of the anti-falling net is fixedly connected with a first rope loop, and one end of each pull rope is fixedly connected with the first rope loop. According to the anti-falling device, when a worker falls down, the worker firstly falls onto the buffering net, the buffering assembly plays a role in buffering, then sufficient buffering is provided, the counter-acting force of the buffering net to the worker is reduced, and along with descending of the buffering net, after the human body falls into the anti-falling net, the anti-falling net supports the human body and prevents the human body from further falling down.

The present invention belongs to the field of construction technology, and discloses a detachable building engineering protection net, which includes a first protection net and a second protection net. One side of the first protection net is fixedly installed with a rectangular frame, and one side of the second protection net is fixedly installed with a convex-shaped frame. Two symmetrically distributed first extension plates are integrally fixed on one side of the rectangular frame, and two symmetrically distributed second extension plates are integrally fixed on the surface of the rectangular frame. Equally spaced rectangular card slots, as well as strip-shaped sliding grooves communicating with the rectangular card slots, are formed on the two first extension plates and the two second extension plates. One end of the strip-shaped sliding groove away from the rectangular card slot is an open structure. Oblique surface blocks are arranged on two opposite sides of the convex-shaped frame. The two oblique surface blocks are symmetrically distributed, and the oblique surface blocks are adapted to the rectangular card slots. An installation groove is formed in the convex-shaped frame, and a lifting mechanism for driving the two oblique surface blocks to move up and down, and a locking component for driving the two oblique surface blocks to move horizontally are arranged in the installation groove.

The invention relates to the technical field of building construction, in particular to a self-elevating safety picking net structure for silo construction. A plurality of longitudinal sliding rails are arranged on the silo wall at intervals in the circumferential direction, an annular frame which is located on the outer side of the silo wall and is horizontally arranged is jointly connected into the sliding rails in a sliding mode, a traction rope is connected to the top of the annular frame, and a safety net is laid on the annular frame. By arranging the longitudinal sliding rail fixedly connected with the silo wall and the annular frame in sliding fit with the longitudinal sliding rail, the protection coverage range in the horizontal direction is expanded. The annular frame and the safety net can be controlled to ascend and descend along the sliding rail through the traction rope, so that safety protection can be conveniently adjusted along with the construction height of the silo, the manual operation amount, the high-altitude operation time and potential risks caused by repeated disassembly, installation and transfer of the safety net in a traditional mode are greatly reduced, and the construction efficiency and safety are improved. And the method better adapts to the rhythm of modern slip-form construction.

The utility model relates to the technical field of building construction, in particular to a building construction safety net convenient to mount and dismount, which comprises a protection net, a scaffold and a dismounting device, the protection net is arranged on one side of the scaffold, the dismounting device is arranged on the surface of the protection net, the dismounting device comprises a placing groove, and the placing groove is arranged on the surface of the protection net. The placement groove is located on one side of the scaffold, a guide sleeve is fixedly connected to the interior of the placement groove and located on one side of the scaffold, a sliding strip is slidably connected to the interior of the guide sleeve, a main plate is fixedly connected to the surface of the sliding strip, an insertion block is fixedly connected to the surface of the main plate, a metal strip is fixedly connected to the surface of the scaffold, and the main plate is placed on the surface of the metal strip. According to the safety net, through the arrangement of the dismounting device, a worker can effectively and conveniently mount and dismount the safety net, the situation that time is wasted in the process of mounting and dismounting the safety net by the worker is avoided, and then the convenience of using the safety net by the worker is improved.

The utility model relates to the field of building construction, in particular to auxiliary equipment for steel structures and civil engineering, and particularly relates to a movable and detachable angle steel anti-falling support. Comprising a safety net, a safety net support and a base, the safety net support is arranged at the top of the base, and the safety net is hung on the safety net support. The movable and detachable angle steel anti-falling support has the advantages of being convenient to arrange, easy to install and detach and capable of being repeatedly used in the high-altitude operation with the height smaller than 15 m, and therefore construction efficiency is greatly improved, and meanwhile construction safety cost is also considered.

The invention relates to the technical field of power system overhead lines, and discloses a mountain crossing frame and a construction method thereof.The mountain crossing frame comprises tower erecting systems arranged in a rectangular structure, and a safety net system is arranged between the tower erecting systems; the tower erecting system comprises a foundation base assembly, and a plurality of standard knots and working knots which are arranged on the foundation base assembly. The foundation base assembly comprises a center stand column, limiting structures are arranged on the peripheral side of the center stand column, and the limiting structures make contact with the ground and are matched with the center stand column to form a triangular structure. The bottom of each standard section and the bottom of each working section are each provided with a first connecting structure, and the top of the center stand column and the top of each standard section are each provided with a second connecting structure matched with the corresponding first connecting structure. Pull rope fixing lugs and monitoring assemblies for monitoring pull force on the pull rope fixing lugs are arranged on the working sections and part of the standard sections; the device has the advantages of being good in terrain adaptability, high in installation efficiency, good in stability and abundant in safety protection.

The utility model discloses a quick connecting support for a scaffold safety net, which relates to the technical field of connecting components, and particularly comprises a connecting component I and a connecting component II, the connecting component I is connected with a scaffold and comprises a fixed long rod connected with the scaffold, the fixed long rod is uniformly provided with clamping sleeves, and the clamping sleeves are fixedly connected with the scaffold. An inner cavity of the clamping sleeve is matched with a scaffold, and inserting needles are evenly and fixedly connected to the outer side wall of the vertical end of the clamping sleeve and matched with a safety net of the scaffold. And the second connecting assembly comprises a fixed long plate and an extrusion block, and the inner side of the extrusion block is fixedly connected with an insertion block matched with the insertion needle. The quick connecting bracket for the scaffold safety net is provided with a plurality of extrusion blocks and clamping sleeves, so that the multi-point fixation of the scaffold safety net can be realized, the limitation range of the quick connecting bracket for the scaffold safety net is expanded, the dismounting and mounting efficiency of the quick connecting bracket can be improved, and the dismounting and mounting efficiency of the scaffold safety net is further improved.

The utility model relates to the technical field of operation equipment, in particular to a protection device at the bottom of a trampoline safety net, which comprises a trampoline main body, a protection assembly is arranged at the top of the trampoline main body, the protection assembly comprises six connecting columns, and the six connecting columns are sleeved in an inner cavity of the trampoline main body. The bottom of the surface of the connecting column is fixedly sleeved with a mounting plate, an inner cavity of the mounting plate is fixedly connected with the trampoline body through fixing bolts, and the bottom of the connecting column is in threaded connection with a fixing screw sleeve. When the connecting column needs to be fixed to the trampoline body, firstly, the connecting column is inserted into the trampoline body, then the connecting column is preliminarily fixed to the trampoline body through the mounting plate and the fixing bolt, then the bottom of the connecting column is sleeved with the fixing thread sleeve, at the moment, the rotating plate is rotated, the fixing thread sleeve is driven by the rotating plate to rotate, and then the connecting column is fixed to the trampoline body. When the top of the fixing screw sleeve is in contact with the bottom of the trampoline main body, the connecting column can be secondarily fixed.

The utility model relates to the technical field of safety nets, and discloses a novel protection safety net which comprises an assembly frame, the assembly frame is of a rectangular frame structure, a laying net used for protection is laid in the assembly frame, a preassembled transverse plate is arranged on the outer side of the assembly frame, and a preassembled transverse plate is arranged on the surface of the side, away from the assembly frame, of the preassembled transverse plate. And the two sides of the upper end and the lower end of the preassembled transverse plate are both of a long plate structure protruding outwards, and the assembling frames connected in a splicing mode are arranged, after the connecting clamping blocks completely enter the first splicing grooves, the two assembling frames are spliced, and the arc parts of the ends, provided with the first splicing grooves, of the assembling frames are completely inserted into the clamping grooves to be attached; the assembling frame can be flexibly expanded according to a set site in practical application, the modularized assembling frame is more excellent in expansibility, the length can be freely increased, and the efficiency of laying the safety net is greatly improved.

This invention discloses a method for constructing a movable horizontal safety net for a tensioned arch spatial triangular truss, comprising the following steps: Step 1, setting up steel wire safety ropes; Step 2, fabricating the safety net; Step 3, installing the safety net; Step 4, sliding the safety net; and Step 5, reusing the safety net. This method achieves the following benefits: 1. Cost savings: The horizontal net and frame can be fabricated on the ground, reducing the investment in high-altitude machinery, making the process more logical, and allowing for repeated use, significantly reducing costs compared to fully laying the horizontal net; 2. Convenience and speed: It solves the problem of the crane boom being unable to extend across the span after the horizontal net is installed, and the reasonable movement of the horizontal net ensures both safety and improves construction efficiency; 3. Safety and reliability: The safety net can be moved according to changes in the construction position via fixed pulleys, providing a large coverage area, improved stability, and ensuring construction safety.

The utility model relates to the technical field of municipal engineering facilities, and discloses a municipal engineering shaft safety net which comprises an outer frame and further comprises a storage groove formed in the surface of the outer frame, a protective net is detachably connected to the interior of the storage groove, a positioning groove is formed in the surface of the protective net, a cavity is formed in the inner wall of the storage groove, and the inner wall of the cavity is fixedly connected with the outer frame. A positioning mechanism is arranged in the cavity; through the arrangement of the limiting mechanism, the position of the outer frame can be preliminarily limited, so that the safety of follow-up installation operation is improved, if the safety net is damaged in the use process, a worker can quickly complete disassembly, assembly and replacement operation on the protection net through the cooperation of the positioning mechanism and the positioning groove for follow-up use, and the safety net is convenient to use. The problems that at present, part of shaft safety nets are poor in safety in the installation process, and time and labor are wasted when workers repair or replace the damaged safety nets are solved.