82 results about "Fire escape" patented technology

The invention provides a remote monitoring method and system based on a fireproof door monitoring module, and relates to the technical field of fireproof safety monitoring, and the method comprises the steps: constructing a fireproof function simulation model of a building; m fireproof door monitoring modules are pre-deployed; after M pieces of real-time state information of the M fireproof door monitoring modules are collected, the function availability of the fireproof door is judged; performing dynamic evacuation path fitting after spatial mapping of the fault fireproof door in the fireproof function simulation model; according to the fireproof influence degree, operation and maintenance priority ranking of the faulted fireproof door is carried out, and a hierarchical operation and maintenance priority sequence is output. The technical problem that the operation and maintenance management efficiency of the fireproof door is low due to the fact that the influence on the whole cannot be evaluated in time when a single fireproof door fails in the prior art is solved, collective availability judgment of the fireproof door combination is performed by monitoring the state of each fireproof door in real time and based on fire escape path fitting, and the operation and maintenance efficiency of the fireproof door combination is improved. And the operation and maintenance management efficiency of fireproof door monitoring is improved.

The invention discloses an alarm system and method of a fire-fighting escape ladder, and relates to the technical field of communication alarm, the alarm system comprises an induction monitoring unit, a multi-source fusion unit, a communication control unit, a power supply control unit and a sound-light alarm unit, and the fire spreading edge is delimited and the fire behavior direction is predicted through multi-source data fusion. The fire emergency is judged to facilitate follow-up fire rescue, then the audible and visual alarm unit is used for fire-fighting escape guide indication, so that people in the escape ladder are guided to transfer orderly, the evacuation efficiency is improved, a distributed communication model is established through the communication control unit, and the channel quality is evaluated to dynamically adjust the communication mode. The anti-interference capability of wireless signals is enhanced, a thermoelectric conversion model is established through the power supply control unit to perform thermoelectric conversion, and then the signals are output to the power supply module to be stored for emergency power supply under the condition of power failure caused by high temperature of a fire disaster, so that the system reliability, the response speed and the personnel safety in a fire disaster scene are remarkably improved.

The utility model discloses a fire-fighting emergency escape ladder which comprises a platform. A fixed rotating shaft is arranged on one side of the platform. The handrail is fixedly arranged on the outer edge of the platform; the folding escape ladder comprises a first escape ladder and a plurality of second escape ladders, the first escape ladder and the second escape ladders are arranged in a mutual sliding mode, and the first escape ladder is rotationally arranged on the fixed rotating shaft; the fixing device is used for fixing the folding escape ladder in different use states; and the folding escape ladder can be rotated to enter a handrail state and a ladder state.

The invention relates to the technical field of fire-fighting emergency rescue, and discloses a fire-fighting emergency escape ladder which comprises a U-shaped shell. Mounting seats which are symmetrically arranged are fixedly mounted on one side of the U-shaped shell; the U-shaped cover can be mounted at the opening of the U-shaped shell in a sliding manner through a sliding rail and is used for blocking the opening of the U-shaped shell; according to the fire-fighting emergency escape ladder, the defects of an existing rope type escape ladder are overcome in a targeted mode, orderly unfolding of the ladder body is achieved through sequential control, winding and clamping of a rope and a foot bar are eradicated, it is guaranteed that the escape ladder effectively and automatically completes opening of a box cover and releasing of the ladder body, manual operation is not needed, the ladder is ready within several seconds, the escape time is greatly saved, and the fire-fighting emergency escape ladder is safe and reliable. Alarm, illumination and independent power supply are integrated, the limitation of single function is broken through, and the intelligent fire-fighting and emergency self-rescue requirements are met.

The utility model relates to the technical field of fire escape guide, in particular to an intelligent guide device for fire escape, which comprises a control box, an assembly mechanism, a wireless transmission device, a display mechanism, an alarm mechanism and an electricity storage mechanism are arranged on the control box, and an adjusting groove is formed in the control box. A maintenance groove and a lifting groove are formed between the adjusting groove and the outer side of the control box, a maintenance cover is arranged on the maintenance groove, a lifting column is arranged on the lifting groove, searchlights are arranged on the two sides of the lifting column, an inclined column and a telescopic mechanism are arranged on the maintenance groove, an adjusting plate is arranged between one side of the inclined column and the adjusting groove, and a telescopic mechanism is arranged on the telescopic mechanism. According to the structure, the wireless transmission device is connected with the network control terminal, automatic adjustment of the direction of the searchlight can be achieved, the angle of the searchlight can be adjusted according to actual needs, it is ensured that light covers the most needed area, and the searchlight is particularly important for areas with poor sight or places with special terrains such as stairs and slopes.

This utility model provides a portable fire escape pliers, relating to the field of fire safety equipment technology. It includes a storage box with a top cover, a buckle on the front, a placement plate on the inside, a fixing groove on the placement plate, a fixing post on the inner bottom of the fixing groove, and a spring-loaded retaining plate on the inner side of the fixing groove. The escape pliers are placed in the fixing groove. The pliers include a handle, a fixing knob on one side of the handle, a connecting wire at one end of the handle, an air pump compartment on the front of the handle, a connecting post on one side of the air pump compartment, a mounting post at one end of the connecting post, a cutting pliers at one end of the mounting post, and an air inlet pipe on one side of the cutting pliers. This design increases the overall portability of the escape pliers, making them easier to carry and expanding their application scenarios.

The utility model relates to the technical field of fire-fighting masks, and discloses a fire-fighting escape gas mask which comprises a mask body, a transparent visual window, an inspiration port and an expiration nozzle are sequentially arranged on the front side wall from top to bottom, a sounding nozzle is further arranged at the position, close to the expiration nozzle, of the front side wall, an illuminating lamp is detachably arranged above the mask body, and a fixing belt is detachably arranged on the rear side of the mask body. A storage box is detachably arranged below the mask; the canister is detachably arranged at the air suction port and comprises a canister body, a canister bottom sealing cover and a canister opening sealing cover, the canister bottom sealing cover and the canister opening sealing cover are detachably arranged at the canister bottom and the canister opening of the canister body respectively, and a smoke filtering layer, a first filtering net plate, a first filtering cotton cushion, a medicament layer, a second filtering net plate and a second filtering cotton cushion are sequentially arranged in the canister body from the canister bottom end to the canister opening end. The multi-layer canister has the advantages that the head is comfortable to wear, the canister has a multi-layer canister filtering effect, and the lighting function is achieved.

The utility model relates to the technical field of sliding doors, in particular to a sound insulation and heat insulation manual sliding door which comprises a door body structure, the door body structure comprises an outer side plate, the inner wall of the outer side plate is connected with an inner supporting partition plate, the side, away from the outer side plate, of the inner supporting partition plate is connected with an inner side plate, and the side face of the inner side plate is connected with a lock head. The tail end of the lock head is connected with a sliding rail, the top end of the outer side plate is connected with a wall body, and the bottom end of the outer side plate is connected with rolling wheels. The sealing effect between the door body and the frame is more excellent through mutual cooperation of the installation groove, the limiting plate and the inner supporting plate, in addition, the heat insulation and sound insulation effects are remarkably improved through mutual cooperation of the outer side plate, the inner supporting partition plate and the inner side plate, and the service life of the door is prolonged. Therefore, the application range of the sliding door is better and better, the controllability is higher, the sliding door can be directly applied to a fire fighting access through the arrangement, and the application range of the sliding door is widened.

The invention discloses a quickly-started fire escape and fire-avoiding cabin and a use method thereof, and relates to the technical field of fire-fighting emergency escape equipment, and the quickly-started fire escape and fire-avoiding cabin comprises an expandable fire-avoiding cabin equipment box body; a fire-avoiding cabin rapid opening supporting assembly, a positive pressure oxygen supply breathing system, a human body breathing waste gas absorption circulating system, an emergency survival material storage assembly, a power battery and a communication lighting system are integrated in the box body. A multi-panel movable unfolding structure is adopted in the fire-avoiding cabin equipment box body, the fire-fighting fire-avoiding cabin is of a foldable structure, and second-level rapid unfolding is achieved through a safety linkage mechanism and an inflation supporting frame. According to the invention, when a building fire escape channel is blocked, a closed safe fire-avoiding space can be quickly built, and by matching with a positive pressure breathing guarantee module, an emergency survival material module and an external communication module, quick risk avoiding, safety protection and long-acting rescue waiting are realized; the device is convenient to store, small in occupied space and capable of being flexibly arranged in various places such as high-rise buildings and residences, and the problems that an existing fire risk avoiding device is slow in unfolding, incomplete in protection and poor in adaptability are solved.

This invention discloses a foldable emergency fire escape ladder for building construction, relating to the field of escape ladder technology. The foldable emergency fire escape ladder for building construction includes a supporting base shell, an emergency escape mechanism, and a rope ladder mechanism installed inside the supporting base shell. The emergency escape mechanism includes a square column and a guide rail groove. A protective cover is fixedly installed on the side of the square column surface. A braking triangular tooth is fixedly connected to the inner side of the protective cover. A step assembly is installed in the middle of the square column surface. The step assembly includes a disc connector and a connecting shaft. A step pedal is fixedly connected to the end of the connecting shaft away from the disc connector. A hexagonal block is fixedly connected to the middle of the outer circular surface of the connecting shaft. A torque spring is fixedly connected between the surface of the hexagonal block and the surface of the disc connector. A pull rod is hinged to the surface of the hexagonal block, achieving the purpose of folding. This allows for folding, reducing the overall volume of the escape ladder, facilitating storage and transportation, and making it lightweight and flexible.

The utility model discloses a quick unfolding mechanism of folding fire emergency escape ladder, including setting between the escape ladder body of upper and lower passageway grating, the escape opening is provided with the passageway grating of upper side relative to escape ladder body, escape ladder body has the lifting column, the surface of lower the passageway grating is provided with the rotary cylinder relative to lifting column, the side stop is provided with the both sides of lifting column, the side stop with the folding step between lifting column is provided with, under the daily condition, the side stop of both sides will be extremely close to the symmetry of lifting column's both sides, the folding step of this time is also folded between two, so the cross section of whole escape ladder body is extremely small at this time, and the proportion of the cross section of the passageway grating that it occupies is relatively smaller, and the influence to the walking of personnel, work under the daily condition is not big.

The embodiment of the invention discloses a method for determining a fire-fighting escape path in real time, a fire-fighting emergency lamp and a system, which are used for improving the safety of the fire-fighting escape path. The method comprises the following steps: acquiring information of a target space of a to-be-determined fire-fighting escape path, wherein the information of the target space comprises a specified initial position and a specified exit position in the target space; collecting indoor obstacle distribution information of the target space in real time; according to the indoor obstacle distribution information, grid marking processing is executed on the target space, any grid space of the target space subjected to grid marking has a passing characteristic value, and the passing characteristic value represents whether the corresponding grid space is in a passable state or not; a fire-fighting escape path from a target specified starting position to any specified exit position is determined based on the target space subjected to gridding labeling, the target specified starting position is any one of the at least one specified starting position, and any grid space where the fire-fighting escape path passes is in a passable state.

The invention relates to the technical field of fire fighting accesses in public areas, in particular to a hidden fire fighting access and a using method thereof.The hidden fire fighting access comprises two sliding rails which are symmetrically arranged, each sliding rail is provided with a blocking section and an opening section which are sequentially connected, the blocking sections are located in the fire fighting access, and the opening sections are located outside the fire fighting access; the blocking sections and the opening sections are arranged in a mutually crossed mode, each sliding rail is provided with a plurality of obstacles in a sliding mode, the blocking sections are provided with first locking mechanisms used for rapidly locking or unlocking the obstacles on the sliding rails, and second locking mechanisms used for mutual connection or separation are arranged between every two adjacent obstacles. During use, the barriers slidably arranged on the sliding rails are quickly locked or unlocked through the first locking mechanisms and the second locking mechanisms, the barriers are quickly switched between the blocking state and the barrier-free state in the fire fighting access, operation is easy and quick, and the good utilization rate of the fire fighting safety access in the public area is increased.

The invention provides a method for selecting a fire escape safety path in a large building, and relates to the field of dynamic path planning, and the method comprises the steps: constructing a building topological graph model, and abstracting a building space into a graph structure composed of nodes and edges; dynamically calculating the danger level of each node by adopting a nonlinear attenuation model based on the fire occurrence position, and updating the danger level of each node along with time; planning an escape path from the starting point to the emergency exit by adopting a danger perception type path search algorithm and fusing the node danger level and the moving cost; fire behavior changes are monitored in real time, a path re-planning mechanism is triggered, and an escape path is dynamically adjusted; and evaluating the escape path through a multi-dimensional evaluation system, and determining a final escape path. According to the technical scheme, escape path dynamic planning with faster response, higher safety and stronger adaptability is realized, and reliable technical support is provided for personnel evacuation in a large building fire.

The utility model relates to a smoke exhaust fan for a fire fighting access, and relates to the field of fire fighting access fans. The device comprises a fan fixedly arranged on one side of a plurality of ventilation pipelines, the fan is communicated with the ventilation pipelines, a connecting pipe is fixedly installed on the air inlet end face of each ventilation pipeline, a supporting seat is fixedly connected to the front portion of the top of each connecting pipe, and a servo motor is fixedly connected to the top of each supporting seat. A servo motor drives a threaded rod to rotate under the cooperation of a bearing seat, so that a threaded sleeve on the surface of the threaded rod moves, a rack is driven to move under the movement of the threaded sleeve, a gear is driven to rotate, and the gear drives an adjusting plate connected to the surface of a rotating rod to rotate under the cooperation of the bearing seat; and when the rack descends, the adjusting plates rotate anticlockwise, so that the suction inlet is enlarged, and finally smoke is extracted through the fan.

The utility model provides a foldable escape ladder, and belongs to the technical field of fire-fighting escape equipment. The problems that an existing escape ladder is complex in opening operation, low in efficiency and not easy to store are solved. The foldable escape ladder comprises a plurality of escape ladder splicing units which can be spliced in sequence, each escape ladder splicing unit comprises a fixing rod, a connecting rod and a plurality of pedal cross beams, the fixing rods are used for being fixed to a wall, the connecting rods are located on one sides of the fixing rods, and the pedal cross beams are located on the other sides of the fixing rods. The two ends of the pedal cross beams are hinged to the fixing rods and the connecting rods respectively and arranged at intervals in the length direction of the fixing rods, and the escape ladder splicing unit located at the top is further provided with a locking mechanism which enables the escape ladder splicing unit to be kept in a folded locking state and can be unlocked. The escape device is convenient and fast to operate, can save a large amount of escape time, and is smaller in size and more attractive after being stored.

The application provides an escape ladder for an LNG storage tank and a mounting method thereof, and relates to the technical field of petrochemical industrial buildings, and comprises a tank body and a supporting mechanism mounted on the side wall of the tank body, wherein the supporting mechanism comprises an escape platform and a shockproof assembly, the shockproof assembly is mounted on the bottom of the escape platform, and the shockproof assembly is used to drive the escape platform to move in the displacement direction of the tank body when the tank body is displaced; the technical problem that, in the prior art, when the horizontal displacement of the LNG storage tank is more than 400mm due to the influence of an earthquake, the escape ladder needs to be connected to the foundation to improve stability, there is a force difference between the LNG storage tank and the escape ladder, the escape ladder cannot timely move in the same direction along with the main body of the storage tank, and large deformation or even damage and failure occur is solved, and the technical effect of reducing unnecessary economic losses is achieved.

The utility model relates to the technical field of fire-fighting ladders, in particular to a fire-fighting ladder stand for fire-fighting engineering, which comprises ladder rods, each ladder rod comprises a metal rod, two ends of each metal rod are in threaded connection with positioning rods, and the outer wall of each positioning rod is provided with a woven clamping groove; the ropes are sequentially woven and wrapped outside the woven clamping grooves, the distance between every two adjacent ladder rods is 40 cm, and traction rings are woven at the top ends of the ropes; and the hanging buckle is connected with the traction ring. Through the arrangement of the detachable structures of the ladder rods, the ladder rods can be demounted in a targeted manner in the later use period of the device, so that the length of a rope at a hanging buckle can be increased, the convenience and suitability of binding operation of the rope can be improved, and the ladder rods can be quickly demounted, mounted and replaced; and the flexibility of the device and the convenience of later maintenance are greatly improved.

1. The name of the design product: fire escape descent device. 2. The use of the design product: the design product is used for fire escape. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention relates to the technical field of building fire fighting and emergency escape, and discloses a folding high-rise building outer window escape and fire extinguishing integrated system capable of being unfolded quickly, the folding high-rise building outer window escape and fire extinguishing integrated system comprises an escape device and an escape and fire extinguishing system, the escape device comprises a fixing frame, an escape platform and a folding escape ladder, and a first connecting seat is fixedly installed outside the fixing frame. According to the folding type high-rise building outer window escape and fire extinguishing integrated system capable of being rapidly unfolded, by arranging the rapid unfolding mechanism, in emergency, a user pulls a handle frame outwards to drive a pull rod connected with the handle frame to move, so that a locking bolt which clamps a folding type escape ladder originally retracts from an inserting block, and once locking is released, the folding type escape ladder can be rapidly unfolded. Under the action of the gravity of the folding escape ladder, the folding escape ladder can be rapidly and downwards rotated and unfolded to form a coherent escape channel, the whole process can be completed within seconds, then instant release and automatic unfolding of the escape ladder are achieved, and precious escape time is won for people.

This invention relates to the field of fire escape device technology, and discloses an isolation escape device and its usage method for high-rise fires, comprising: an isolation device body; a first isolation door; an isolation chamber disposed inside the isolation device body, with an escape pipe installed on the side of the isolation chamber near the inner wall, and an entrance opening on the side of the isolation chamber near the first isolation door; a fireproof layer; a second isolation door; a smoke exhaust assembly, including a first smoke exhaust assembly and a second smoke exhaust assembly, the first smoke exhaust assembly being disposed on the top of the isolation device body near the inner wall; the second smoke exhaust assembly being disposed on the top of the isolation chamber near the inner wall; an emergency lighting lamp; an escape device body; an escape assembly located between the two escape device bodies; and an alarm system. This invention fully considers the emergency situation during a fire, and its structure and function are designed to provide a safe and reliable escape route for people in high-rise buildings.

The invention relates to the technical field of fire safety, and discloses an intelligent recommendation method and system for a fire escape route, and the method comprises the steps: integrating a building information model, real-time sensor network data and video monitoring data, and constructing a virtual digital twin environment which is synchronously updated with a physical fire scene; preprocessing the multi-source signal; based on the preprocessed multi-source signal, identifying an open fire position, smoke concentration distribution and personnel aggregation through a convolutional neural network, and generating a real-time and multi-dimensional environment risk map and a personnel distribution map; parallel deduction is carried out in a digital twin environment, an escape route is planned by adopting an A * algorithm, and an optimal personalized escape route is obtained; the change of the environment and the personnel state is continuously monitored, and when a new congestion occurs, an escape route is dynamically planned and pushed in real time; according to the invention, the safety and efficiency of personnel evacuation in a fire scene are improved.

This invention discloses a fire escape indicator device. The rear end of a housing is mounted to a wall. The housing has a downward-facing cavity containing two accommodating channels extending vertically and spaced apart horizontally. A display frame is positioned below the housing, close to the ground, and has upward-facing slots that connect to the cavity. A display window is located on the front side of the display frame. Two fluorescent indicator signs are inserted into the two accommodating channels, each with a directional marking on its front side. Each fluorescent indicator sign descends along its corresponding accommodating channel to be inserted into its slot, exposing its marking in the display window. The two markings indicate opposite directions. Because the display frame is close to the ground, escaping personnel bending forward can clearly see the markings in the display window, quickly determining their escape route and thus increasing their escape success rate.

The utility model discloses a subway escape ladder which comprises two first side plates by rotating a bidirectional threaded rod, a plurality of first climbing rods are fixedly mounted between the two first side plates, and the bidirectional threaded rod drives two threaded sleeves to move towards the two sides respectively, so that the two first climbing rods are fixedly mounted between the two first side plates; a threaded sleeve moves to drive J-shaped rods to move, a second side plate is pushed upwards after the J-shaped rods move, the second side plate ascends to drive an arc-shaped sliding groove plate to ascend, a two-way threaded rod rotates reversely after the arc-shaped sliding groove plate ascends, and at the moment, the two-way threaded rod drives the two J-shaped rods to move towards the middle at the same time; and after the J-shaped rod moves, the arc-shaped sliding groove plate can be limited, then the effect of limiting and fixing the lifted second side plate is achieved, the application range of the device is widened, and the effect of storing and fixing the second side plate can be achieved by tightly attaching the surface of the second side plate to the rear portion of the J-shaped rod.

The utility model relates to the technical field of elevator escape equipment, and particularly discloses an outdoor sightseeing elevator safety escape channel which comprises an outdoor elevator shaft, an outdoor elevator car and an external escape ladder assembly, the outdoor elevator car is located in the outdoor elevator shaft, and the external escape ladder assembly is connected to the side face of the exterior of the outdoor elevator shaft. The outdoor elevator shaft and the outdoor part of the outdoor elevator car are both made of glass, the external escape ladder assembly comprises an outdoor double-running stair and a supporting stand column, a platform, close to the outdoor elevator shaft, of the outdoor double-running stair is fixedly connected with the outdoor elevator shaft, and a platform, away from the outdoor elevator shaft, of the outdoor double-running stair is connected with the supporting stand column. The supporting stand column vertically stands on the ground. According to the utility model, the self-rescue mode can be realized by automatically breaking the glass, so that the possible wait time consumption and complicated external operation in the traditional rescue are effectively avoided, and the evacuation time of passengers in emergency is greatly shortened.

This invention relates to the field of fire-fighting equipment technology, specifically to a special lifting device for fire-fighting overpasses, comprising: an overpass main body, a base installed at the bottom of the overpass main body, and an openable fire escape window on the outer side of the overpass main body; the invention, by setting up a translation mechanism, when a fire occurs at both ends of the overpass main body, the drive motor can drive the U-shaped plate below to extend through the lead screw, forming a temporary standing platform outside the fire escape window of the overpass main body. Trapped personnel in the overpass main body can be transferred to the standing platform first, which not only prevents them from continuing to stay inside the overpass main body and causing injury, but also reduces the tension of the people on site after moving to the standing platform. Trapped personnel can evacuate in an orderly manner through the extended fire escape ladder, reducing the harm caused by the fire to people.

A telescopic support capable of being assembled with an escape fire ladder in fire engineering comprises a squatting and rising mechanism, a stretching mechanism and a linkage mechanism, and the squatting and rising mechanism can be switched between a squatting position and a standing position; the stretching mechanism is rotationally arranged at the top of the squatting and rising mechanism and is switched between a retraction position and a stretching position; the linkage mechanism is connected between the squatting and rising mechanism and the stretching mechanism and used for driving the forced squatting and rising mechanism and the stretching mechanism to cooperatively act, the telescopic support is switched between the squatting retracting position and the standing stretching position, squatting and standing of the squatting and rising mechanism are achieved through the linkage mechanism, meanwhile, the stretching mechanism is driven to rotate, and the chain wheel can stretch out or retract back conveniently.

The utility model relates to the field of escape equipment, in particular to an escape ladder which comprises two hook assemblies, a connecting rod assembly and a ladder assembly, each hook assembly comprises an upper hook and a lower hook, the upper hook is rotationally connected to the lower hook, the rotating axis of the upper hook is perpendicular to the length direction of the upper hook, and the two hook assemblies are symmetrically distributed along the rotating axis of the upper hook; the connecting rod assembly comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are rotationally connected to the two hook assemblies respectively, the second connecting rod is hinged to the first connecting rod, the ladder assembly comprises connecting belts and step parts, the number of the connecting belts is the same as that of the lower hooks, and the connecting belts and the step parts are in one-to-one correspondence; the step parts are connected to the connecting belt and distributed at intervals in the length direction of the connecting belt. The upper hook and the lower hook are rotationally connected, the size of the escape ladder is reduced in the storage state, carrying and storage are facilitated, the structural strength between the two hook assemblies is improved through the connecting assembly, and the safety of the escape ladder is improved.

The application discloses a building fire escape path planning method and device based on global information fusion, which fuses building physical information system, building external fire safety rescue system, city traffic scheduling system, building BIM system and city 3D geographic information system and other data, and performs real-time evaluation on the building fire escape path, so that the escape path based on the optimal personal safety coefficient is determined according to the principle of the shortest and non-crowded. According to the building internal condition and the real-time dynamic information of the rescue of the fire station around the building, the optimal escape path is solved, disaster control, personnel escape and rescue implementation global information are fused, the best escape path strategy is determined, the efficiency and quality of building fire disposal are improved, the maximum safety space and escape path real-time planning can be obtained from the whole life cycle evolution of the fire, and personnel congestion or being trapped caused by information islands or one-sided information can be avoided.

1. The name of the design product: the hook rope ladder (CSL-XFGJ02). 2. The use of the design product: for escape ladder. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.