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32results about How to "Meet the needs of fire protection" patented technology
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Warp-knitted base sun shading material and preparation method thereof
The invention relates to a warp-knitted base sun shading material and a preparation method thereof. The preparation method comprises the following steps of: (1) providing polyester warp-knitted base cloth; (2) coating PVC slurry on the polyester warp-knitted base cloth, and drying the polyester warp-knitted base cloth to obtain an intermediate material; and (3) coating surface treatment slurry to the surface of the intermediate material obtained in the step (2), and drying the intermediate material to obtain the finished sun shading material. The PVC slurry and the surface treatment slurry in the preparation method are special slurry of the invention. The sun shading material has high mechanical function, fireproof function, insulating performance, self-cleaning performance and weather resistance besides the functions of appearance, visual effect and the like of a common curtain material.
Owner:FOSHAN GAOMING YILONG PLASTICS & RUBBER IND
Building with multifunctional rope unreeling device
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises reeling barrels, an object falling mechanical system, a descent control device, pull ropes and a cantilever. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. A descent control rope extending from the descent control device is wound around the corresponding reeling barrel and then connected with a heavy object. After being connected with the corresponding reeling barrel, the pull ropes are wound around the corresponding reeling barrel and connected with a heavy object.
Owner:黄维
Environment-friendly type flexible fireproof cable
ActiveCN105989914AGuarantee unimpededGood stabilityInsulated cablesInsulated conductorsThermal insulationPolyolefin
The invention relates to an environment-friendly type flexible fireproof cable. The environment-friendly type flexible fireproof cable is characterized in that the fireproof insulated cable is formed by an outer wrapping layer and an inner core; the inner core is formed by stranding of a single core cable core or a multi-core cable core; the cable core is lapped with a double fireproof insulating layer; the outer wrapping layer is formed by means of successive wrapping of a thermal insulation layer, an oxygen isolating layer, an anti-impact layer and an oversheath; the double fireproof insulating layer is formed by stacking and lapping of internal and external layers of insulating layers made of different materials; the internal layer is lapped with a mineral insulating fireproof wrapping tape in a stacking way, and the thickness of the wrapping tape is 0.1-0.2mm; and the external layer is lapped with the fireproof material-ceramic polyolefin insulating material, and the thickness of the material-ceramic polyolefin insulating material is 1.0mm-3.5mm. During the combustion process, the double fireproof insulating layer can be quickly sintered into a hard ceramic hard housing which can effectively isolate the internal of the line from infringement of the high temperature flame and guarantee opening of the line when a fire occurs, wherein the cable works under the rated operational voltage; the flame temperature is greater than or equal to 750DEG C; and a fuse is not disconnected within the 90min fire supply time.
Owner:上海朗达电缆(集团)有限公司
Multifunctional rope unreeling equipment
The invention discloses multifunctional rope unreeling equipment. The multifunctional rope unreeling equipment comprises a reel, an object falling mechanical system, a descent control device or a pull rope; the reel or a rotating part connected with the reel is provided with a magnet I; a non-rotating part opposite to the magnet I on the reel or the rotating part is provided with a magnet II or metal II or alloy II which can be mutually attracted together with the magnet I; the descent control device or the pull rope is connected with the reel; a descent control rope extending out of the descent control device or the pull rope extends out of the reel and is connected with a heavy object after being wound on the reel; and the object falling mechanical system is started, namely the heavy object is controlled to drive the reel to rotate through the descent control rope or the pull rope.
Owner:吴旭榕
Multifunctional rope releasing device for lifting machine
PendingCN104874121AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueEngineeringAlloy
The invention discloses a multifunctional rope releasing device for a lifting machine. The multifunctional rope releasing device comprises one or more coiling blocks, a falling object mechanical system, a pull rope and a cantilever. The coiling block or a rotating component connected with the coiling block is provided with a first magnet, and a non-rotating component at the opposite position of the first magnet on the coiling block or the rotating component is provided with a second magnet or second metal or second alloy capable of being attracted to the first magnet. The pull rope is connected with the coiling block, the pull rope is wound on the coiling block after being connected with the coiling block, extends out of the coiling block, penetrates through a turning pulley on the cantilever and then is connected with a weight, and the weight is controlled to drive the coiling block to rotate through the pull rope under the gravity by starting the falling object mechanical system.
Owner:黄维
Multifunctional rope unwinding device
The invention relates to a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises a coiling block, an object falling mechanical system and a pull rope; the coiling block or a rotation component connected with the coiling block is connected with a slow descent mechanism, an end rope winding disc is arranged on the coiling block, the pull rope is connected with the end rope winding disc, extends to be wound on the coiling block, and extends out to be connected with a heavy object, the object falling mechanical system is started, and therefore the heavy object is controlled to drive the coiling block to rotate through the pull rope.
Owner:吴超然
Masonry wall movement joint fireproof and heat-preserving structure and installation method thereof
InactiveCN105464225AMeet the needs of fire protectionMeet the needs of insulationWallsHeat proofingEngineeringTongue and groove
The invention provides a masonry wall movement joint fireproof and heat-preserving structure. An L-shaped fireproof inner plate and an L-shaped fireproof outer plate are arranged on the inner side of a wall and are fixedly connected to a base layer of the wall through tail wings. A slot type fireproof cover plate is further arranged on the surface of the inner side of the wall and is fixed to the fireproof inner plate through bolts. An L-shaped heat-preserving inner plate and an L-shaped heat-preserving outer plate are arranged on the outer side of the wall and are connected with the base layer of the wall through tail wings. A heat-preserving cover plate is further arranged on the surface of the outer side of the wall and is fixed to the heat-preserving inner plate through bolts. A torsion spring is arranged between the fireproof outer plate and the heat-preserving outer plate. Tongue-and-groove portions of the fireproof outer plate and the fireproof inner plate can be attached through tension of the torsion spring, and tongue-and-groove portions of the heat-preserving outer plate and the heat-preserving inner plate can be attached. Whether telescopic deformation or settlement deformation happens, the fireproof outer plate and the fireproof inner plate will not be separated from each other, and the heat-preserving outer plate and the heat-preserving inner plate will not be separated from each other.
Owner:SHANDONG UNIV OF SCI & TECH +1
Multifunctional rope unreeling rescue equipment
The invention discloses multifunctional rope unreeling rescue equipment. The multifunctional rope unreeling rescue equipment comprises a hoister, a reel, an object falling mechanical system and a pull rope; the reel or a rotating part connected with the reel is provided with a magnet I; a non-rotating part opposite to the magnet I on the reel or the rotating part is provided with a magnet II or metal II or alloy II which can be mutually attracted together with the magnet I; the pull rope is connected with the reel; the pull rope extends out of the reel and is connected with a heavy object after being wound on the reel; the object falling mechanical system is started, namely the heavy object is controlled to drive the reel to rotate through the pull rope, and the pull rope is enabled to extend out of the reel; and the extended pull rope is connected with the hoister.
Owner:吴旭榕
Multifunctional rope unwinding device
The invention relates to a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises a coiling block, an object falling mechanical system, a descent control device or a pull rope and a cantilever; a first magnet is arranged on the coiling block or a rotation component connected with the coiling block, and a second magnet or second metal or second alloy which can be in mutual attraction with the first magnet is arranged on a non-rotation component at the position opposite to the first magnet on the coiling block or the rotation component; the descent control device or the pull rope is connected with the coiling block, a descent control rope extending out from the descent control device or the pull rope is wound on the coiling block, then extends out from the coiling block so as to penetrate through a steering sliding wheel on the cantilever, and is connected with a heavy object, the object falling mechanical system is started, and therefore the heavy object is controlled to drive the coiling block to rotate through the descent control rope or the pull rope under the gravity effect.
Owner:吴超然
Building with multifunctional paying-off device
PendingCN104874131AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueAlloyBraking system
A building with a multifunctional paying-off device comprises the multifunctional paying-off device arranged on a roof layer of the building. The multifunction paying-off device comprises one or more coiling blocks, a brake system and a descent control device, magnets I are arranged on the coiling blocks or on rotary parts connected with the coiling blocks, magnets II or metal II or alloy II capable of being attracted to the magnets I are arranged on non-rotary parts opposite to the magnets I on the coiling blocks or on the rotary parts, the descend control device is arranged on the coiling blocks, a descend control rope extending out of the descend control device is wound on the coiling blocks and then connected with a heavy object, and the coiling blocks can be controlled to rotate by starting a remote controller on the lower portion of the building.
Owner:黄维
An environmentally friendly flexible fireproof cable
ActiveCN105989914BIsolation violationGuarantee unimpededInsulated cablesInsulated conductorsMulticore cablePolyolefin
Owner:上海朗达电缆(集团)有限公司
Multifunctional rope unwinding device
InactiveCN104874122AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueMagnetEngineering
The invention relates to a multifunctional rope unwinding device for an elevator. The multifunctional rope unwinding device comprises one or more coiling blocks, an object falling mechanical system and a pull rope; a first magnet is arranged on the coiling blocks or a rotation component connected with the coiling blocks, and a second magnet or second metal or second alloy which can be in mutual attraction with the first magnet is arranged on a non-rotation component at the position opposite to the first magnet on the coiling blocks or the rotation component; the pull rope is connected with the coiling blocks, is wound on the coiling blocks after being connected with the coiling blocks, extends out from the coiling blocks to penetrate through a steering sliding wheel on a cantilever, and is connected with a heavy object, the object falling mechanical system is started, and therefore the heavy object is controlled to drive the coiling block to rotate through the pull rope under the gravity effect.
Owner:吴超然
Multifunctional rope releasing device for lifting machine
PendingCN104874123AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueAlloyEngineering
The invention discloses a multifunctional rope releasing device for a lifting machine. The multifunctional rope releasing device comprises one or more coiling blocks, a brake system and a pull rope. The brake system comprises a normally-closed brake and a remote controller. A damper brake of the normally-closed brake fixes the coiling block, and a rotating component connected with the coiling block is provided with a first magnet. A non-rotating component at the opposite position of the first magnet on the rotating component is provided with a second magnet or second metal or second alloy capable of being attracted to the first magnet. One end of the pull rope is connected to the coiling block, and the pull rope is wound on the coiling block, then extends out of the coiling block and is connected with a weight.
Owner:黄维
Building with multifunctional rope unreeling device
InactiveCN104888373AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueRemote controlCantilever
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer or a refuge floor or an upper floor of the building. The multifunctional rope unreeling device comprises one or more reeling barrels, a brake system, pull ropes and a cantilever. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. One end of each pull rope is connected to the corresponding reeling cylinder. After being wound around the reeling cylinders, the pull ropes are connected with heavy objects. A remote control unit is started to make the reeling barrels rotate.
Owner:吴超然
Detection device for building fire-fighting equipment
InactiveCN111504514AMeet the needs of fire protectionThermometer testing/calibrationPipeline systemsSmoke EmissionFire detection
The invention discloses a detection device of building fire-fighting equipment, and belongs to the technical field of building fire-fighting detection. The device comprises a moving trolley, a pipeline detection assembly and a fire detection assembly. The pipeline detection assembly comprises a vertical moving part, a pipeline damage detection part and two pipeline leakage detection parts. The vertical moving part is arranged at the top of the moving trolley; the pipeline damage detection part is arranged at the moving end of the vertical moving part; the two pipeline leakage detection parts are symmetrically arranged at the moving end of the vertical moving part; the fire detection assembly comprises a smoke generation part, a driving part and a temperature test part; the temperature testing piece is arranged at the moving end of the vertical moving piece, the temperature testing piece is vertically arranged at the top of the moving trolley, and the driving piece is arranged on the smoke generating piece. According to the invention, the pipeline detection assembly and the fire detection assembly are used for detecting various fire-fighting equipment in a building, and the workingefficiency is improved.
Owner:陈圆圆
Building with multifunctional rope unreeling device
InactiveCN104888367AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueCantileverMagnet
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises one or more reeling barrels, an object falling mechanical system, pull ropes and a cantilever. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The pull ropes and the reeling barrels are connected. After being connected with the reeling barrels, the pull ropes extend out of the reeling barrels to penetrate through direction change pulleys on the cantilever and then are connected with heavy objects.
Owner:吴超然
Building with multifunctional rope unreeling device
PendingCN104888375AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueCantileverUpper floor
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer or a refuge floor or an upper floor of the building. The multifunctional rope unreeling device comprises one or more reeling barrels, an object falling mechanical system, a descent control device and a cantilever. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The descent control device is arranged on the corresponding reeling barrel. A descent control rope extending out of the descent control device is wound around the corresponding reeling barrel and is then connected with a heavy object.
Owner:黄维
Building with multifunctional rope unreeling device
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises reeling barrels, a brake system, a descent control device and pull ropes. The reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The descent control device is arranged on the corresponding reeling barrel. The pull ropes are connected with the corresponding reeling barrel. The pull ropes and a descent control rope extending from the descent control device are wound around the same reeling barrel or different reeling barrels. A controller is started to make the reeling barrels rotate.
Owner:黄维
Building with multifunctional rope unreeling device
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises reeling barrels, an object falling mechanical system, a descent control device and pull ropes. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. A descent control rope extending from the descent control device is wound around the corresponding reeling barrel and then connected with a heavy object. After being connected with the corresponding reeling barrel, the pull ropes are wound around the corresponding reeling barrel and connected with a heavy object.
Owner:吴超然
Multifunctional rope unwinding device
PendingCN104874124AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueRemote controlEngineering
The invention relates to a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises one or more coiling blocks, a brake system and a descent control device; the brake system comprises a normal close brake and a remote control unit or a controller or a control pull rope, a first magnet is arranged on the coiling blocks or a rotation component connected with the coiling blocks, and a second magnet or second metal or second alloy which can be in mutual attraction with the first magnet is arranged on a non-rotation component at the position opposite to the first magnet on the coiling blocks or the rotation component; the descent control device is arranged on the coiling blocks, a descent control rope extending out from the descent control device is wound on the coiling blocks to be then connected with a heavy object, the remote control unit is started, and therefore a damper brake of the normal close brake can be controlled to loosen so as to enable the coiling blocks to rotate.
Owner:黄维
Building with multifunctional rope unreeling device
InactiveCN104888370AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueEngineeringUpper floor
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer or a refuge floor or an upper floor of the building. The multifunctional rope unreeling device comprises one or more reeling barrels, an object falling mechanical system and a descent control device. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The descent control device is arranged on the corresponding reeling barrel. A descent control rope extending out of the descent control device is wound around the corresponding reeling barrel and is then connected with a heavy object.
Owner:吴超然
Building with multifunctional paying-off device
PendingCN104874129AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueAlloyUpper floor
A building with a multifunctional paying-off device comprises the multifunctional paying-off device arranged on a roof layer or a refuge layer or an upper floor of the building. The multifunction paying-off device comprises one or more coiling blocks, a brake system and a pull rope, magnets are arranged on the coiling blocks or on rotary parts where the coiling blocks are connected, magnets II or metal II or alloy II capable of being attracted to the magnets I are arranged on non-rotary parts opposite to the magnets I on the coiling blocks or on the rotary parts, one end of the pull rope is connected to the coiling blocks, the pull rope is wound on the coiling blocks and then is connected with a heavy object, and the coiling blocks can rotate by starting a remote controller.
Owner:黄维
Multifunctional rope unwinding device
The invention relates to a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises a coiling block, a brake system, a descent control device, a pull rope and a cantilever; the brake system comprises a normal close brake and a remote control unit or a controller or a control pull rope, a first magnet is arranged on the coiling block, and a second magnet or second metal or second alloy which can be in mutual attraction with the first magnet is arranged on a non-rotation component at the position opposite to the first magnet on the coiling block, the descent control device is arranged on the coiling block, the pull rope is connected with the coiling block, the pull rope and a descent control rope extending out from the descent control device are wound on the same coiling block or different coiling blocks, the remote control unit or the controller are started, or the control pull rope is used, and therefore the normal close brake can be controlled to be loosened so as to enable the coiling block to rotate.
Owner:吴超然
Multifunctional rope releasing device for lifting machine
InactiveCN104874118AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueEngineeringAlloy
The invention discloses a multifunctional rope releasing device for a lifting machine. The multifunctional rope releasing device comprises one or more coiling blocks, a brake system, a pull rope and a cantilever. The brake system comprises a normally-closed brake and a remote controller. A damper brake of the normally-closed brake fixes the coiling block, and a rotating component connected with the coiling block is provided with a first magnet. A non-rotating component at the opposite position of the first magnet on the rotating component is provided with a second magnet or second metal or second alloy capable of being attracted to the first magnet. One end of the pull rope is connected to the coiling block, and the pull rope is wound on the coiling block, then extends out of the coiling block, penetrates through a turning pulley on the cantilever and is connected with a weight.
Owner:吴超然
Multifunctional rope paying-off equipment
Provided is multifunctional rope paying-off equipment. The multifunctional rope paying-off equipment comprises a winding barrel, a falling mechanical system and a pulling rope. A magnet I is arranged on the winding barrel or a rotary component connected with the winding barrel. A magnet II or metal II or alloy II attracting the magnet I is arranged on the winding barrel or a non-rotary component in the position opposite to the magnet I on the rotary component. A pulley or a steel ring is arranged on the winding barrel. The pulling rope penetrates through a line groove of the pulley or a hole of the steel ring to form a first pulling rope body and a second pulling rope body on two sides. The first pulling rope body and the second pulling rope body are wound on the winding barrel and then extend out of the winding barrel to be connected with a weight.
Owner:吴旭榕
Multifunctional rope unwinding device
The invention relates to a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises one or more coiling blocks, an object falling mechanical system, a descent control device and a pull rope; the descent control device is arranged on the coiling blocks, the pull rope is connected with the coiling blocks, the pull rope and a descent control rope extending out from the descent control device are wound on the same coiling block or different coiling blocks, the descent control rope extending out from the descent control device is wound on the coiling blocks, then extends out from the coiling blocks so as to penetrate through a steering sliding wheel on the cantilever, and is connected with a heavy object, the object falling mechanical system is started, and therefore the heavy object is controlled to drive the coiling block to rotate through the pull rope under the gravity effect.
Owner:吴超然
Multifunctional rope unwinding device
PendingCN104874128AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueEngineeringAlloy
The invention relates to a multifunctional rope unwinding device for an elevator. The multifunctional rope unwinding device comprises one or more coiling blocks, an object falling mechanical system, a pull rope and a cantilever; a first magnet is arranged on the coiling blocks or a rotation component connected with the coiling blocks, and a second magnet or second metal or second alloy which can be in mutual attraction with the first magnet is arranged on a non-rotation component at the position opposite to the first magnet on the coiling blocks or the rotation component; the pull rope is connected with the coiling blocks, is then wound on the coiling blocks, extends out from the coiling blocks so as to penetrate through a steering sliding wheel on the cantilever, and is connected with a heavy object, the object falling mechanical system is started, and therefore the heavy object is controlled to drive the coiling block to rotate through the pull rope under the gravity effect.
Owner:黄维
Building with multifunctional rope unreeling device
InactiveCN104888371AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueRemote controlCantilever
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises one or more reeling barrels, a brake system, a descent control device and a cantilever. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The descent control device is arranged on the corresponding reeling barrel. A descent control rope extending out of the descent control device is wound around the corresponding reeling barrel and is then connected with a heavy object. A remote control unit is started below the building to control the reeling barrels to rotate.
Owner:吴超然
Building with multifunctional rope unreeling device
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises reeling barrels, a brake system, a descent control device, pull ropes and a cantilever. The reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The descent control device is arranged on the corresponding reeling barrel. The pull ropes are connected with the corresponding reeling barrel. The pull ropes and a descent control rope extending from the descent control device are wound around the same reeling barrel or different reeling barrels. A controller is started to make the reeling barrels rotate.
Owner:吴超然
Building with multifunctional rope unreeling device
PendingCN104888368AMeet the needs of fire fighting and rescueMeet the needs of fire protectionBuilding rescueEngineeringCantilever
The invention provides a building with a multifunctional rope unreeling device. The building with the multifunctional rope unreeling device comprises the multifunctional rope unreeling device arranged on a roof layer of the building. The multifunctional rope unreeling device comprises one or more reeling barrels, an object falling mechanical system, pull ropes and a cantilever. The reeling barrels or rotary components connected with the reeling barrels are provided with magnets I. The positions, opposite to the magnets I on the reeling barrels or the rotary components, of non-rotary components are provided with magnets II or metal II or alloy II attracting the magnets I. The pull ropes and the reeling barrels are connected. After being connected with the reeling barrels, the pull ropes extend out of the reeling barrels to penetrate through direction change pulleys on the cantilever and then are connected with heavy objects.
Owner:黄维
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