41results about How to "Add ways to slow down and escape from danger" patented technology

The invention relates to a multifunctional rope unwinding device with a rescue function. The multifunctional rope unwinding device comprises an electric power transmission system or hydraulic transmission system or pneumatic transmission system, a coiling block and a pulling rope. A rotating shaft of a motor of the electric power transmission system or hydraulic transmission system or pneumatic transmission system can drive the coiling block to rotate, the coiling block is sleeved with a ring, the ring can rotate around the coiling block, the ring is provided with a blocking surface, the coiling block is provided with a blocking member, one end of the pulling rope is connected to the ring, and the pulling rope extends out from the ring to be wound on the coiling block and then extends outfrom the coiling block to be directly connected with a weight or pass through a wire slot of a turning pulley to be connected with the weight. The structure of the weight includes a rubber ball or fixed pulley or movable pulley, and a cable connected to the motor extends outwards and is connected to a power source through an electrical component capable of switching on or off the power source.

The invention provides multifunctional rope uncoiling equipment with the rescue function. The multifunctional rope uncoiling equipment comprises an electric driving system or a hydraulic driving system or a pneumatic driving system, coiling blocks or rotary shafts and descent control devices. A rotating shaft of a motor of the electric driving system or the hydraulic driving system or the pneumatic driving system can drive the coiling blocks or the rotary shafts to rotate through a transmission mechanism. The coiling blocks or the rotary shafts are sleeved with circular rings. The circular rings can rotate around the coiling blocks or the rotary shafts. The descent control devices are arranged on the circular rings. Slow descent ropes of the descent control devices extend out from the descent control devices to be coiled on the coiling blocks or the rotary shafts and then extend out from the coiling blocks or the rotary shafts. Cables connected with the motor extend outwards and are connected with a power supply through an electrical element capable of powering on or powering off the power supply. Through the electrical element, the motor can be switched on and rotate forwards or reversely. The motor rotates forwards or reversely to drive the slow descent ropes to rotate to extend out from the coiling blocks or the rotary shafts and to be hooked onto the descent control devices.

The invention provides a building or structure with a multifunctional rope releasing device. The multifunctional rope releasing device is arranged on the roof of the building and comprises an electrictransmission system or a hydraulic transmission system or a pneumatic transmission system, winding drums or rotating shafts and pull ropes. Rotation shafts of motors of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the winding drums or the rotating shafts to rotate. Rotation ring bodies are connected to winding drum shafts ofthe winding drums mentioned above or the rotating shafts mentioned above. Each rotation ring body mentioned above can only rotate in one direction and is locked and cannot rotate in the other direction. The pull ropes mentioned above are connected to the rotation ring bodies. The pull ropes mentioned above are wound around the winding drums or the rotating shafts and extend out from the winding drums or the rotating shafts after extending out from the rotation ring bodies. A cable connected with an electric motor extends downwards to the lower portion or the outer portion of the building and is connected with a power supply through a main contact of a contactor. A coil of the contactor mentioned above is connected with a PLC and the power supply to form a loop.

The invention discloses a building provided with multifunctional rope releasing equipment. The building comprises the multifunctional rope releasing equipment which is arranged on a roofing, or a refuge layer, or a floor of the building; the multifunctional rope releasing equipment comprises a motor, winding drums or rotary shafts, and a slow descending device; the motor is connected with the winding drums or the rotary shafts; winding drum shafts of the winding drums or the rotary shafts are connected with rotating ring bodies; the rotating ring bodies simply can rotate in one direction, andare locked in the other direction and thus cannot rotate; the slow descending device is arranged on the rotating ring body; slow descending ropes extending out of the slow descending device are woundon the winding drums or the rotary shafts; a cable connected with the motor extends downwards to the lower part or the exterior of the building and is connected with a power supply through main contacts of contactors; and coils of the contactors are connected with a PLC and the power supply for forming a return circuit.

The invention provides a multifunctional unwinding device with a rescue function. The multifunctional unwinding device with the rescue function comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, a rotating body and a descent control device; a rotating shaft of a motor of the power transmission system or the hydraulic transmission system orthe pneumatic transmission system is connected with the rotating body directly or through a transmission mechanism; the rotating body is connected with a ratchet wheel mechanism; the descent control device is arranged on the rotating body, and after extending out of the rotating body, a descent control rope of the descent control device is wound on the rotating body or wound on a winding drum or awinding shaft and extends out of the rotating body or the winding drum or the winding shaft; and a cable connected with the motor is connected with a power supply through a main contact of a contactor, and a coil of the contactor is connected with a PLC and the power supply to form a loop.

The invention provides multi-function rope releasing equipment. The multi-function rope releasing equipment comprises a motor, rolling tubes and at least one slow descent device, the motor is connected with the rolling tubes and can drive the rolling tubes to rotate, rolling tube shafts of the rolling tubes are connected with at least one rotating ring body, the at least one rotating ring body canonly rotate in one direction and is locked to be unable to rotate in the other direction, the at least one slow descent device is arranged on the at least one rotating ring body, slow descent ropes extending out of the at least one slow descent device are winded on the rolling tubes and extend out of the rolling tubes to be directly connected with weights or be connected with the weights after passing through rope grooves of at least one direction-changing pulley, structures of the weights comprise rubber balls or fixed pulleys or movable pulleys, and a cable connected with the motor is connected with a power source through an electrical control system.

Provided is a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises an electric power transmission system or a hydraulic transmission system or a pneumatic transmission system, a coiling block or a rotating shaft, and a slow descending device; a rotating shaft of a motor of the electric power transmission system or the hydraulic transmission system or the pneumatic transmission system is used for driving the coiling block or the rotating shaft to rotate directly or through a transmission mechanism; a rotating ring body is connected to a coiling block shaftof the coiling block or the rotating shaft, and can only rotate in one direction and is locked in the other direction and cannot rotate; the slow descending device is arranged on the rotating ring body; a slow descending rope extending out of the slow descending device is wound on the coiling block or the rotating shaft and extends out of the coiling block or the rotating shaft; a cable connectedwith an electromotor downwards extends to the position below or outside a building, and is connected with a power source through a main contact point of a contactor; and a coil of the contactor is connected with a PLC and the power source to form a loop.

The invention relates to building with multifunctional rope releasing equipment. The multifunctional rope releasing equipment is arranged on the roof of the building, wherein the multifunctional ropereleasing equipment comprises an electric transmission system or a hydraulic transmission system or an air pressure transmission system, a rotating body, a pull rope, the rotating shaft of the motor of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system is directly connected with the rotating body through a transmission mechanism, wherein thepulling rope is connected to the rotating body, the pulling rope extends out of the rotating body and is wound on the rotating body or wound on the winding drum or the winding shaft and extends out ofthe rotating body or the winding drum or the winding shaft, and the cable connected with the motor extends downwards to the lower part of the building or is connected with the power supply through anelectrical component capable of switching on or disconnecting the power supply.

The invention provides a multifunctional unwinding device with a rescue function. The multifunctional unwinding device comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, a winding drum or a rotary shaft and a descent control device; a rotating shaft of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the winding drum or the rotary shaft to rotate; a winding drum shaft of the winding drum or the rotary shaft is connected with a rotating ring body, and the rotating ring body can only rotate towards one direction and cannot rotate towards the other direction caused by lock; the descent control device is arranged on the rotating ring body, and a descent controlrope extending out of the descent control device is wound on the winding drum or the rotary shaft and extends out of the winding drum or the rotary shaft; and an electric appliance element can enablethe motor to rotate clockwise or anticlockwise, and the clockwise rotation or the anticlockwise rotation of the motor drives the descent control rope to rotate to extend out of the winding drum or therotary shaft and be hung on the descent control device.

Provided is a building or a structure with a multifunctional rope releasing device. The multifunctional rope releasing device is arranged on a roof of the building. The multifunctional rope releasingdevice comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, a reel, and a descent control device. A rotating shaft of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system is connected with the reel and can drive the reel to rotate. A reel shaft of the reel is connected with a rotating ring body. The rotating ring body can just rotate in one direction and is locked and cannot rotate on the other direction. The descent control device is arranged on the rotating ring body. A slowdescent rope extended from the descent control device is coiled on the reel and extends out from the reel. A cable connected with the motor extends out, and is connected with a power supply on the upper part of the building which is provided with the multifunctional rope releasing device, the cable being connected with the power supply through an electrical control system.

The invention discloses multifunctional rope releasing equipment with a rescuing function. The multifunctional rope releasing equipment comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, a rotating body and a descent control device. A rotating shaft of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system is connected with the rotating body through transmission mechanisms. The rotating body is connected with a ratchet mechanism. The descent control device is arranged on the rotating body. A descent control rope of the descent control device extends out of the rotating body to be wound on the rotating body or a coiling block or a reel and extends out of the rotating body orthe coiling block or the reel. The electric motor or the motor or an electromagnetic directional valve and a cable connected with the motor are connected with a power source through an electrical control system.

The invention provides a building with a multifunctional rope paying-off device. The multifunctional rope paying-off device comprises a motor, winding drums or rotating shafts and a descent control device. The motor is directly connected with the winding drums or rotating shafts or connected with the winding drums or rotating shafts through transmission components and can drive the winding drums or rotating shafts to rotate. Rotating ring bodies are connected to winding drum shafts of the winding drums or the rotating shafts. The rotating ring bodies can rotate only in one direction and are locked and cannot rotate in the other direction. The descent control device is arranged on the corresponding rotating ring body. Each slow descent rope extending out from the descent control device is wound around the corresponding winding drum or rotating shaft and extends out from the corresponding winding drum or rotating shaft to be connected with a weight. A cable connected with the motor extends outwards and is connected, on the upper side of the building with the multifunctional rope paying-off device, with a power source through an electrical control system.

Provided is a building or a structure with a multifunctional rope unwinding device. The multifunctional rope unwinding device is arranged on a roof of the building, and comprises an electric power transmission system or a hydraulic transmission system or a pneumatic transmission system, a coiling block or a rotating shaft and a pulling rope; a rotating shaft of a motor of the electric power transmission system or the hydraulic transmission system or the pneumatic transmission system is connected with the coiling block or the rotating shaft directly or through a transmission element and can beused for driving the coiling block or the rotating shaft to rotate; the coiling block or the rotating shaft is sleeved with a ring; the ring can rotate around the coiling block or the rotating shaft and is provided with a blocking surface; the coiling block is provided with a blocking piece; one end of the pulling rope is connected to the ring; after extending out of the ring and being wound on the coiling block or the rotating shaft, the pulling rope is connected with a heavy object; and a cable connected with an electromotor is connected with a power source through an electric device elementcapable of switching on or off the power source above the building provided with the multifunctional rope unwinding device.

The invention discloses multi-functional rope pay-off equipment with a rescue function. The multi-functional rope pay-off equipment comprises an power transmission system or a hydraulic transmission system or a pneumatic transmission system, a rotating body and a pull rope, wherein a rotating shaft of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system is directly connected with the rotating body or connected with the rotating body through a transmission mechanism; the rotating body is connected with a ratchet mechanism; the pull rope is connected to the rotating body; the pull rope extends out of the rotating body, then is winded on the rotating body or winded on a winding barrel or a reel and extends out from the rotating body or the winding barrel or the reel; a cable which is connected with the motor extends outwards to be connected with a power source through an electrical apparatus element which can be connected or disconnected with the power source; and by means of the electrical apparatus element, the motor can be connected with the power source and perform forward rotation or backward rotation.

The invention provides a building or a structure with a multifunctional reel-off device. The multi-functional reel-off device is arranged on the roof of the building, and comprises an electrical drivesystem or a hydraulic drive system or a pneumatic drive system, coiling blocks or rotating shafts, and a descent control device, wherein a rotating shaft of a motor of the electrical drive system orthe hydraulic drive system or the pneumatic drive system can drive the coiling blocks or the rotating shafts to rotate through a drive mechanism; circular rings sleeve the coiling blocks or the rotating shafts; blocking surfaces are arranged on the circular rings; blocking pieces are arranged on the coiling blocks or the rotating shafts; the descent control device is arranged on one of the circular rings; a descent control rope of the descent control device extends out of the descent control device, is wound on the coiling blocks or the rotating shafts, and then extends out of the coiling blocks or the rotating shafts; a cable connected with a motor extends downwards to a part below or outside the building and is connected with a power supply through main contact points of contactors; andcoils of the contactors are connected with a PLC and the power supply to form a loop.

The invention discloses multifunctional rope releasing equipment. The multifunctional rope releasing equipment comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, a winding drum or a rotating shaft, and a descent control device, a rotating shaft of a motor of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the winding drum or the rotating shaft to rotate directly or through a transmission mechanism, a winding drum shaft of the winding drum or the rotating shaft is connected with a rotating ring body, the rotating ring body can only rotate in one direction and is locked and cannot rotate in the other direction, the descent control device is arranged on the rotating ring body, a descent control rope extending out of the descent control device is wound around the winding drum or the rotating shaft and extends out of the winding drum or the rotating shaft, a cable connected with the motor extends downwards to be below or outside the building and is connected with a power supply through a main contact of a contactor, and a coil of the contactor is connected with a PLC and the power supply to form a loop.

The invention discloses multifunctional rope releasing equipment. The multifunctional rope releasing equipment comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, reels or rotary shafts and a slow descent device. A rotation shaft of a motor of the electric transmission system or the hydraulic transmission system or the pneumatic transmission system can drive the reels or the rotary shafts to rotate, and rotating ring bodies are connected to reel shafts of the reels or the rotary shafts, and can rotate only in one direction while being locked to be prevented from rotating in the other direction. The slow descent device is arranged on one of the rotating ring bodies, and slow descent ropes extending out of the slow descent device wind the reels or the rotary shafts and extend out of the reels or the rotary shafts. By means of an electrical element, the motor can rotate forwardly or reversely to drive the slow descent ropes to rotatably extend out of the reels or the rotary shafts and to be hung and pulled on the slow descent device.

Disclosed is multifunctional rope releasing equipment. The multifunctional rope releasing equipment includes an electric transmission system or a hydraulic transmission system or an air pressure transmission system, a winding drum and a pull rope, wherein a rotary shaft of a motor of the electric transmission system or the hydraulic transmission system or the air pressure transmission system can drive the winding drum to rotate, the winding drum is sleeved with a circular ring that can rotate around the winding drum and is provided with a blocking surface, a blocking part is arranged on the winding drum, one end of the pull rope is connected with the circular ring, and the pull rope extends out of the circular ring, is wound on the winding drum and then extends out of the winding drum to be directly connected with a heavy object or be connected with the heavy object after passing through a wiring duct of a diverting pulley. The heavy object can be a rubber ball or a fixed pulley or a movable pulley, and a cable connected with a motor extends outwards and is connected with a power supply through an electric element that is able to be connected or disconnected with the power supply.

The invention discloses a building with a multi-functional rope releasing device. The building with the multi-functional rope releasing device comprises the multi-functional rope releasing device arranged on a roof layer or a refuge floor or an upper floor of the building, and the multi-functional rope releasing device comprises a motor, rollers or rotating shafts and descent control devices; the motor can drive the rollers or the rotating shafts to rotate; rotating ring bodies are connected on roller shafts of the rollers or the rotating shafts; the rotating ring bodies can only rotate in one direction and are locked and cannot rotate in the other direction; the descent control devices are arranged on the rotating ring bodies; descent control ropes extending from the descent control devices are wound on the rollers or the rotating shafts and extend from the rollers or the rotating shafts; a rotating shaft of the motor can be controlled to rotate through a remote control or a controller or a control pulling rope, and the descent control ropes rotate out of the rollers or the rotating shafts; and the rotating and extending descent control ropes are hung on the descent control devices.

The invention discloses a building provided with multifunctional rope releasing equipment. The multifunctional rope releasing equipment comprises a motor, winding drums / rotary shafts, and a slow descending device; the motor is connected with the winding drums or the rotary shafts and can drive the winding drums or the rotary shafts to rotate; winding drum shafts of the winding drums or the rotary shafts are connected with rotating ring bodies; the rotating ring bodies simply can rotate in one direction, and are locked in the other direction and thus cannot rotate; the slow descending deviceis arranged on the rotating ring bodies; slow descending ropes extending out of the slow descending device are wound on the winding drums or the rotary shafts and extend out of the winding drums or the rotary shafts to be directly connected with heavy objects or to be connected with the heavy objects after penetrating through rope grooves of turning pulleys; a cable connected with the motor extends outwards and is connected with a power supply through main contacts of contactors above the building with the multifunctional rope releasing equipment; and coils of the contactors are connected witha PLC and the power supply for forming a return circuit.

The invention provides multifunctional rope releasing equipment. The multifunctional rope releasing equipment comprises a power transmission system or a hydraulic transmission system or a pneumatic transmission system, winding drums and draw ropes, wherein rotating shafts of a motor of the power transmission system or the hydraulic transmission system or the pneumatic transmission system are connected with the winding drums and can drive the winding drums to rotate; rotating ring bodies are connected onto winding drum shafts of the winding drums and can rotate only in one direction but are locked in the other direction and cannot rotate; the draw ropes are connected onto the rotating ring bodies, and after extending out of the rotating ring bodies, the draw ropes wind around the winding drums and extend out of the winding drums to be connected with a weight; and a cable connected with the motor extends downwards to reach the lower part or exterior of a building and is connected with apower supply through a main contact of a contactor, and a coil of the contactor is connected with a PLC (programmable logic controller) and the power supply to form a loop.

The invention discloses a building or a structure with multifunctional rope unwinding equipment. The multifunctional rope unwinding equipment is arranged on a roof of the building and comprises an electric transmission system or a hydraulic transmission system or a pneumatic transmission system, a rotating body and a pull rope, a rotating shaft of a motor of the electric transmission system or thehydraulic transmission system or the pneumatic transmission system is connected to the rotating body, the rotating body is connected to a ratchet wheel mechanism, the pull rope is connected to the rotating body, the pull rope extends out of the rotating body to wind around the rotating body or wind around a winding drum and then extends out of the rotating body or the winding drum to be connectedto a heavy object, a cable connected to the motor extends downwards to the lower part or the exterior of the building to be connected to a power supply through a main contact of a contactor, and a coil of the contactor is connected to a PLC and the power supply to form a loop.

A building with a multifunctional rope paying-off device comprises the multifunctional rope paying-off device arranged on the upper side of the building. The multifunctional rope paying-off device comprises a motor, winding drums and a descent control device. The motor is connected with the winding drums and can drive the winding drums to rotate. Rotating ring bodies are connected to winding drumshafts of the winding drums. The rotating ring bodies can rotate only in one direction and are locked and cannot rotate in the other direction. The descent control device is arranged on the corresponding rotating ring body. Each slow descent rope extending out from the descent control device is wound around the corresponding winding drum and extends out from the corresponding winding drum. A cableconnected with the motor extends outwards and is connected, on the upper side of the building with the multifunctional rope paying-off device, with a power source through an electrical control system.

The invention relates to a building or structure with a multifunctional rope releasing device. The multifunctional rope releasing device is arranged on a roof of the building, wherein the multifunctional rope releasing device comprises an electric transmission system or a hydraulic transmission system or an air pressure transmission system, a winding drum or a rotary shaft, and a descent control device, a rotating shaft of a motor of the electric transmission system or the hydraulic transmission system or the air pressure transmission system can drive the winding drum or the rotary shaft to rotate, a circular ring is arranged on the winding drum or the rotary shaft in a sleeving mode, the circular ring can rotate around the winding drum or the rotary shaft, a blocking surface is arranged on the circular ring, a blocking piece is arranged on the winding drum or the rotary shaft, the descent control device is arranged on the circular ring, a descent control rope of the descent control device extends out of the descent control device, is wound around the winding drum or the rotary shaft and then extends out of the winding drum or the rotary shaft, and a cable connected with a motor extends downwards to the lower part or outside of the building and is connected with a power supply through an electrical element capable of connecting or disconnecting the power supply.

The invention relates to a multifunctional rope releasing device. The multifunctional rope releasing device comprises an electric transmission system or a hydraulic transmission system or an air pressure transmission system, a winding drum or a rotary shaft, and a descent control device, wherein a rotating shaft of a motor of the electric transmission system or the hydraulic transmission system orthe air pressure transmission system can drive the winding drum or the rotary shaft to rotate through a transmission mechanism, a circular ring is arranged on the winding drum or the rotary shaft ina sleeving mode, the circular ring can rotate around the winding drum or the rotary shaft, the descent control device is arranged on the circular ring, a descent control rope of the descent control device extends out of the descent control device, is wound around the winding drum or the rotary shaft and then extends out of the winding drum or the rotary shaft, and a cable connected with a motor extends out and is connected with a power supply through an electrical element capable of connecting or disconnecting the power supply. By using the electrical element, the motor can be powered on and rotates forward or reversely, and the motor can rotate forward or reversely to drive the descent control rope to rotationally extend out from the winding drum or the rotary shaft to be hung on the descent control device in a pulled mode.

The invention provides a building with multi-function rope releasing equipment. The building with the multi-function rope releasing equipment comprises the multi-function rope releasing equipment which is arranged on the upper portion of the building, the multi-function rope releasing equipment comprises a motor, rolling tubes and at least one slow descent device, the motor can drive the rolling tubes to rotate, rolling tube shafts of the rolling tubes are connected with at least one rotating ring body, the at least one rotating ring body can only rotate in one direction and is locked to be unable to rotate in the other direction, the at least one slow descent device is arranged on the at least one rotating ring body, slow descent ropes extending out of the at least one slow descent deviceare wound on the rolling tubes and extend out of the rolling tubes, a cable connected with the motor extends outwards and is connected with a power source through main contacts of contactors on the upper portion of the building provided with the multi-function rope releasing equipment, and coils of the contactors are connected with a PLC and the power source to form a circuit.

The invention discloses multifunctional rope releasing equipment which comprises a motor, winding drums or rotary shafts, and a slow descending device; the motor can drive the winding drums or the rotary shafts to rotate directly or through a transmission mechanism; winding drum shafts of the winding drums or the rotary shafts are connected with rotating ring bodies; the rotating ring bodies simply can rotate in one direction, and are locked in the other direction and thus cannot rotate; the slow descending device is arranged on the rotating ring body; slow descending ropes extending out of the slow descending device are wound on the winding drums or the rotary shafts and extend out of the winding drums or the rotary shafts; a cable connected with the motor extends downwards to the lower part or the exterior of the building and is connected with a power supply through main contacts of contactors; and coils of the contactors are connected with a PLC and the power supply for forming a return circuit.

Provided is multifunctional rope releasing equipment. The multifunctional rope releasing equipment comprises an electric transmission system or a hydraulic transmission system or an air pressure transmission system, a rotating body and a pull rope, wherein a rotary shaft of a motor of the electric transmission system or the hydraulic transmission system or the air pressure transmission system is directly connected with the rotating body or is connected with the rotating body through a transmission mechanism, the rotating body is connected with a ratchet mechanism, and the pull rope is connected with the rotating body. The pulling rope extends out of the rotating body, is wound on the rotating body or on a winding drum or a winding shaft and then extends out of the rotating body or the winding drum or the winding shaft, a cable connected with the motor extends outwards and is connected with a power supply through an electric element that is able to be connected or disconnected with thepower supply, and the motor can be connected with the power supply and can rotate forwards or reversely by using the electric element.

The invention discloses a building with multifunctional rope releasing equipment. The building with the multifunctional rope releasing equipment comprises the multifunctional rope releasing equipmentarranged on a roof floor or a refuge floor or an upper floor of the building; the multifunctional rope releasing equipment comprises a motor, a winding drum or a rotating shaft, and a descent controldevice; the motor is connected with the winding drum or the rotating shaft directly or through a transmission mechanism, and can drive the winding drum or the rotating shaft to rotate; a winding drumshaft of the winding drum or the rotating shaft is connected with a rotating ring body; the rotating ring body only can rotate in one direction, and cannot rotate in the other direction due to locking; the descent control device is arranged on the rotating ring body; a slow descending rope extending from the descent control device is wound on the winding drum or the rotating shaft, and extends from the winding drum or the rotating shaft; and a cable connected with the motor downwards extends to the lower side or the external of the building to connect with a power supply through an electric control system.