CN102992133A

CN102992133A - Falling prevention system of construction elevator

Info

Publication number: CN102992133A
Application number: CN 201210516770
Authority: CN
Inventors: 吴旭榕
Original assignee: FUJIAN PROVINCE LIANJIANG COUNTY XUNJIE TECHNOLOGY INCUBATION Co Ltd
Current assignee: FUJIAN PROVINCE LIANJIANG COUNTY XUNJIE TECHNOLOGY INCUBATION Co Ltd
Priority date: 2012-12-03
Filing date: 2012-12-03
Publication date: 2013-03-27

Abstract

The invention discloses a falling prevention system of a construction elevator. The falling prevention system comprises a rope grabbing device and a safety rope, wherein the rope grabbing device is arranged on a cage of the construction elevator; one end of the safety rope is connected to a bottom layer or an intermediate floor of a building; the safety rope upwards extends, downwards extends after the direction is changed through a turntable or a turning wheel or a roller or a steel bar and passes through the rope grabbing device arranged on the cage and is fixed at a proper position below the cage; and the cage can be used for grabbing and fixing the safety rope through the rope grabbing device.

Description

A kind of anti-drop system of construction elevator

Technical field

The invention belongs to the anti-fall technical field of construction elevator.

Background technology

Construction elevator refers to do vertical transport and uses in building operation, the dual-purpose elevator of people's goods of delivery personnel and material, owing to often be attached to the outside of building, so also claim external elevator.In recent years, the high-building construction elevator uses more and more general, but because the product safety performance has certain gap with general man lift, the camp site working environment is relatively poor, unit in charge of construction's management of safe operation is not in place, supervisor's Safety Supervision scarce capacity causes equipment often to have major safety risks.And for construction elevator, be the manned vertical transport equipment of the unique energy in camp site, the improper terraced cage (also claiming car) that causes most probably of safety management falls, and the accident that the dead group of group hinders occurs.The reason of construction elevator ladder cage high falling comprises: after 1, guide rail bracket raises, block is not in time installed on upper limit travel switch block, the limit switch, terraced cage is rushed to summit behind the not timely flat bed of driver's maloperation, the tie bolt that causes the highest attached wall to put above guide rail bracket standard knot damages, high falling after the guide rail bracket fracture; 2, falling protector malfunction.The anti-falling safety device anti-falling safety device is important on a construction elevator parts, rely on it to eliminate the generation of terraced cage falling accident, guarantees occupant's life security.The principle of work of the falling protector of construction elevator is mounted on the transmission base plate of construction elevator ladder cage now, the gear of one end is engaged on the tooth bar of guide rail bracket, when terraced cage normally moves, gear wheel shaft drives the assemblies such as centrifugal block, centrifugal-block, governing spring and screw rod and rotates together, and anti-falling safety device just can not move yet.When the instantaneous hypervelocity of terraced cage descended or falls, centrifugal-block was under the effect of centnifugal force, and the compression governing spring also outwards throws away, and its leg-of-mutton head blocks the boss of Outer Taper, then just drives Outer Taper and rotates together.This moment, the outside thread of Outer Taper afterbody rotated in afterburning nut, because afterburning nut is fixed, Outer Taper can only rearward move, and makes like this male cone (strobilus masculinus) of Outer Taper press to tightly the friction lining that is glued on the housing, when resistance makes terraced cage braking once timing.But owing to often can not working falling protector, a variety of causes causes safety misadventure.Also there is not at present other safe fall-proof measure on the construction elevator.

Summary of the invention

The present invention seeks to as guaranteeing the construction safety in building, lost efficacy when falling at the falling protector of existing construction elevator, still can prevent the falling of terraced cage of construction elevator.

For achieving the above object, the present invention adopts following technical scheme:

A kind of anti-drop system of construction elevator; described anti-drop system comprises grabs rope device; the slow rope that falls; rotating disk or runner or cylinder; the above-mentioned rope device of grabbing is mounted on the terraced cage of described construction elevator; an above-mentioned slow end that falls rope is connected to bottom or the intermediate floor of building; above-mentioned slow fall that rope extends upward and change direction by rotating disk or runner or cylinder or rod iron extend through downwards and be arranged on grabbing rope device and being fixed on the terraced cage suitable part in below such as the ground or the below of building body on the terraced cage; above-mentioned grab rope device be enclosed within slow periphery of falling rope can be on the guide rail bracket of described construction elevator free lifting; after the rope device action is grabbed in startup when needed; the ladder cage is promptly fixed the slow rope that falls by grabbing rope device; the slow rope that falls can prevent that terraced cage from dropping or terraced cage is rushed to summit; space in the scaffold that arranges between the terraced cage of existing building and elevator can provide arranges the vertical slow space of rope and the space of arranging cant cantilever of falling; on the post of building or beam or floor face or the shear wall cantilever mounted support can be set; and at cant cantilever rotating disk is set; also have living space between scaffold and the guide rail bracket in addition to provide cant cantilever and the slow space that falls rope of vertical layout are set; design plan design cantilever is above terraced cage in addition; the slow rope that falls is passed down through the top of terraced cage and passes the rope device of grabbing that is arranged in the terraced cage; the bottom of passing again terraced cage is fixedly connected on downwards on the basis on ground; we also can install the anti-drop system that two covers or more covers are set at terraced cage, and this just can play twice or the anti-falling protection of multiple tracks more.

Wherein, the described rope device of grabbing comprises movable slider, fixing slide block, above-mentioned fixedly slide block is fixed on the tank wall of terraced cage or grabs on the housing of rope device, movable slider is movably arranged on the tank wall of terraced cage or grabs on the housing of rope device, and above-mentioned movable slider can enter to insert fixedly to clamp to delay in the slide block and fall rope.

Wherein, described movable slider has two, is provided with Compress Spring on the bottom surface of two movable sliders, promotes two movable sliders when Compress Spring is upspring and enters fixedly in the slide block.

Wherein, described movable slider is connected with stay cord, stay cord can draw in movable slider fixedly in the slide block under external force, movable slider is upspring the Compress Spring of grabbing the rope device to promote movable slider to enter fixedly in the slide block and is clamped the slow rope that falls by people control as by stay cord, and movable slider also can start by sensor or mechanical device grabs the rope device and Compress Spring is upspring or motor action or hydraulic stem action promote movable slider and enter fixedly in the slide block and clamp to delay and fall rope.

Wherein, described movable slider is near slow shape undulate shape or gear-like of falling the one side of rope.

Wherein, the described slow upper end that falls rope is connected on damper or energy disperser or spring or the descending lifeline, and above-mentioned damper or energy disperser or spring or descending lifeline are fixedly installed on bottom or the intermediate floor.

Wherein, described descending lifeline comprises the metal ring track, the surface of being close to the metal ring track is provided with magnet, magnet is fixed on the supporting construction, supporting construction is fixed in the rotating shaft, rotating shaft can center on bearing rotates, and be provided with the described slow rope that falls of a volume in the rotating shaft, and the above-mentioned slow rope that falls drives the rotating shaft rotation and is with moving magnet to slide at the metal ring track under the effect of pulling force.

Wherein, described descending lifeline comprises the metal ring track, the two sides of being close to the metal ring track is provided with magnet one and magnet two, magnet one and magnet two are fixed on the supporting construction, supporting construction is fixed in the rotating shaft, rotating shaft can be rotated around bearing, be provided with the slow rope that falls of a volume in the rotating shaft, the slow rope that falls drives the rotating shaft rotation and is with moving magnet one and magnet two to slide at the metal ring track under the effect of pulling force, also has scheme, described descending lifeline comprises the metal ring track, the two sides of being close to the metal ring track is provided with and is no less than two pairs group of magnets, every pair of group of magnets comprises two blocks of magnet that are symmetrical in the metal ring track, above-mentioned group of magnets is fixed on the supporting construction, and supporting construction is fixed on rotating shaft or the cylinder, and rotating shaft or cylinder can rotate around bearing, be connected with the described slow rope that falls of a volume on rotating shaft or the cylinder, the above-mentioned slow rope that falls drives rotating shaft or cylinder rotation and drives above-mentioned group of magnets and rotates at the metal ring track under the effect of pulling force.

Wherein, described metal ring track is provided with separates the crack, certainly also can not arrange and separate the crack.

Wherein, described rotating disk or runner or cylinder or rod iron are arranged on the beam of building or the wall-attached frame between post or shear wall or guide rail bracket or guide rail bracket and the building or on the cantilever of the building of encorbelmenting.

Beneficial effect of the present invention: after adopting the technical scheme of anti-drop system of construction elevator of above-mentioned a kind of building, because described terraced cage is provided with and grabs the rope device, an above-mentioned slow end that falls rope is connected to ground or suitable part, as on the basis of the bottom of building or the ground floor of intermediate floor or building or on the structures such as the beam of intermediate floor or post, above-mentioned slow fall rope by being fixed on the building outside beam or the rotating disk on the cantilever on the post or runner or cylinder or rod iron change that direction extends upward and change direction by the rotating disk on the cantilever that is arranged on the building top or runner or cylinder or rod iron extends through downwards and be arranged on grabbing rope device and fix on the ground on the terraced cage, above-mentioned grab rope device be enclosed within slow fall the rope periphery can be on guide rail bracket free lifting, the above-mentioned so slow rope that falls has just formed another drop preventer independently the falling protector on original construction elevator in conjunction with the rope device of grabbing on the terraced cage, when terraced cage suddenly during out of control falling and original falling protector when losing efficacy, the operator of elevator or take the people start grab the rope device action after, the ladder cage is promptly fixed the slow rope that falls by grabbing rope device, prevented like this falling of terraced cage, we also can install at terraced cage the anti-drop system of two covers or more covers, and this just can play twice or the more anti-fall guarantee of multiple tracks.Certainly, we can be provided with damper or spring device or energy disperser or descending lifeline at the above-mentioned slow pull end that is subjected to that falls rope, be used for avoiding suddenly stopping uncomfortable sensation or the injury that terraced cage brings to the people, also can be used to avoid suddenly to stop the impact damage that terraced cage brings to equipment or structure, effect was more outstanding after particularly descending lifeline adopted the metal ring track in conjunction with the scheme of permanent magnet, because being close to the metal ring raceway surface is provided with magnet, magnet is fixed on the supporting construction, supporting construction is fixed in the rotating shaft, rotating shaft is rotatable, be provided with the slow rope that falls of a volume in the rotating shaft, the slow rope that falls drives the rotating shaft rotation and slides on the surface of metal ring track with moving magnet under the effect of the pulling force of terraced cage, because magnet produces the magnetic field eddy current in the metal ring track in rotation process, the magnetic field eddy current hinders the rapid movement of magnet, can make the speed of the magnet of twirl quickly fall to safety speed, so terraced cage just can descend by the slow rope safety under the effect of descending lifeline of falling, because the scheme that adopts above-mentioned magnet to slow down, the characteristic of its structural safety is given prominence to very much, there is not the problem of the friction member wear out failure of friction type descent control device in it, and its deceleration performance is rapid and security insurance is reliable.After adopting technique scheme, because slow to fall rope be to entangle terraced cage downwards in conjunction with cant cantilever, that is to say when terraced cage is upwards rushed to summit that can be fallen rope and cant cantilever is held downwards by slow, this has also just increased another road safety curtain for stoping terraced cage to be rushed to summit.Also have, the principle that anti-drop system of the present invention and existing falling protector adopt is distinct, it can adopt by people control as by stay cord and the Compress Spring of grabbing the rope device be upspring promote movable slider to enter fixedly in the slide block and clamp the slow rope that falls, or starts by sensor or mechanical device and to grab the rope device and Compress Spring is upspring or motor action or hydraulic stem action promote movable slider and enter fixedly in the slide block and clamp to delay and fall rope.Another beneficial effect of the present invention has taken into full account existing design regulation exactly; job specifications; safety standard; operational procedure; the installation of existing construction elevator; the invention design of making after the factors such as layout of work and existing construction space; the present invention all can not impact above-mentioned factor; it takes full advantage of the idle space of camp site and arranges technical scheme of the present invention; through examining the engineering of building; can find between the terraced cage of existing building and elevator, to be provided with scaffold; space in the scaffold can provide vertical layout the slow space that falls rope; on the post of building or beam or floor face or the shear wall cantilever mounted support or supporting construction can be set; and at cant cantilever or supporting construction rotating disk is set; also having also has living space to provide between scaffold and the guide rail bracket arranges cant cantilever or supporting construction; the vertical layout delayed the space that falls rope; cant cantilever or supporting construction are to depend on the beam that is fixed on the building side; on post or the shear wall; and can water the rising of smashing floor with building operation and promote; can not affect structure and the construction of building; the present invention is an independently drop preventer of construction elevator; thereby it can be grabbed rope device and allow terraced cage be fixed on the slow second fall arrest protection of having played existing construction elevator fall arrest on the rope of falling by automatic or manual operation start when the falling protector of former construction elevator loses efficacy; certainly we also can principle according to the present invention arrange the second cover anti-drop system; even the 3rd cover or the anti-drop system of more covers, so just can play to the terraced cage of construction elevator multiple drop-proof protection.

Description of drawings

Fig. 1 is the schematic side view of the embodiment of the invention 1 mounting arrangements.

Fig. 2 is the schematic top plan view of the embodiment of the invention 1 mounting arrangements.

Fig. 3 is the scheme drawing of device under normal condition of restricting of grabbing of the embodiment of the invention 1.

Fig. 4 is that the rope device of grabbing of the embodiment of the invention 1 is promptly delaying the scheme drawing that falls under the rope state.

Fig. 5 is the cross-sectional schematic of the descending lifeline of the embodiment of the invention 1.

Fig. 6 is the schematic top plan view of the descending lifeline of the embodiment of the invention 1.

The specific embodiment

As shown in Figure 1, a kind of construction elevator, comprise guide rail bracket 9 and terraced cage 5, described construction elevator is provided with anti-drop system, above-mentioned anti-drop system comprises grabs rope device 6, the slow rope 8 that falls, rotating disk 2, rotating disk 4, described terraced cage 5 is provided with grabs rope device 6, an above-mentioned slow end that falls rope 8 is connected on the spring 10 fixing on the cantilever 11 of the second layer of building 1, the above-mentioned slow rope 8 that falls extends upward by being arranged on rotating disk 2 on the cantilever 16 from the point of connection of spring 10 and changes directions and extend and extend through downwards by rotating disk 4 to terraced cage 5 and be arranged on grabbing rope device 6 and be fixed on the basis 12 on ground on the terraced cage 5, the basis 12 other slow ropes 13 that fall of a volume that are provided with, above-mentioned cantilever 16 has been bolted cant cantilever 17, be provided with rotating disk 4 on the cant cantilever 17, when after building 1 is upwards constructed, needing lift rail frame 9 and need make terraced cage 5 rise height, in the position that needs hoisting depth cantilever is set, above-mentioned cant cantilever 17 repeated usage that detachably gets off, for example behind cantilever 16 dismounting lower cantalever supports 17, be installed on the cantilever 18, and at cantilever 18 rotating disk 19 is set, then untie, unclamp the slow end that rope 8 is fixed in basis 12 that falls, utilize slow fall rope 13 extend vertical slow the length of rope 8 is fallen and entangle rotating disk 19 and rise after cant cantilever 17 on rotating disk 4, then be strained and fixed on basis 12, above-mentioned grab rope device 6 be enclosed within slow fall outside the rope 8 can be on guide rail bracket 9 free lifting, start when needed and grab rope device 6 actions, ladder cage 5 is promptly fixed the slow rope 8 that falls by grabbing rope device 6, scaffold 15 is arranged on the avris of building 1, if the top building has just been watered the concrete strength smash not enough the time, we can be after guide rail bracket 9 upwards promotes, cantilever and rotating disk are set on the guide rail bracket up, above-mentioned cantilever and rotating disk are arranged on the top of grabbing rope device 6 on the terraced cage 5, then untie the slow end that rope 8 is fixed in basis 12 that falls, utilize the slow rope 13 that falls to extend and vertically slowly fall the length of rope 8 and entangle that post-tensioning is tightly fixed on the basis 12 on the rotating disk that just is arranged on the guide rail bracket top, above-mentioned grab rope device 6 be enclosed within slow fall outside the rope 8 can be on guide rail bracket 9 free lifting, by such mode, we just can arrange independently anti-drop system at terraced cage 5, and can adjust anti-drop system with the rising of guide rail bracket 9, cantilever 20 is provided with rotating disk 21 as shown in Figure 1, be provided with rotating disk 23 on the cantilever 22, multiple stopping when above-mentioned rotating disk 21 and rotating disk 23 also play terraced cage and fall.

As shown in Figure 2, the side of building 1 is erected with scaffold 15, scaffold 15 arranged outside have guide rail bracket 9, be provided with terraced cage 5 and terraced cage 56 on the guide rail bracket 9, ladder cage 56 is ignored not expression in accompanying drawing 1, a slow end that falls rope 8 is connected on the spring fixing on the cantilever of the second layer of building 1, the above-mentioned slow rope 8 that falls extends upward by being arranged on rotating disk 2 on the cantilever 16 from the point of connection of spring and changes directions and extend and extend through downwards by rotating disk 4 to terraced cage 5 and be arranged on grabbing rope device 6 and be fixed on the basis on ground on the terraced cage 5, above-mentioned cantilever 16 has been bolted cant cantilever 17, is provided with rotating disk 4 on the cant cantilever 17.

As shown in Figure 3, under normal condition, grab rope device 6 and be arranged on slow periphery of falling rope 8, slow fall rope 8 and pass the internal void 7 of grabbing rope device 6, grab rope device 6 and comprise movable slider 28, movable slider 31, fixedly slide block 27, fixedly slide block 29, above-mentioned fixedly slide block 27, fixedly slide block 29 is fixed on the tank wall of terraced cage or grabs on the housing of rope device 6, movable slider 28, movable slider 31 is movably arranged on the tank wall of terraced cage or grabs on the housing of rope device 6, above-mentioned movable slider 28, movable slider 31 can enter and insert fixedly slide block 27, the fixing slow rope 8 that falls of slide block 29 interior clampings, be provided with the cylindric protruding thing 50 and the cylindric protruding thing 51 that are parallel to inclined-plane 37 on the movable slider 28, be provided with the cylindric protruding thing 52 and the cylindric protruding thing 53 that are parallel to inclined-plane 38 on the movable slider 31, above-mentioned cylindric protruding thing 50 and cylindric protruding thing 51 insert and are parallel in the grooved tracks on inclined-plane 37, above-mentioned cylindric protruding thing 52 and cylindric protruding thing 53 insert and are parallel in the grooved tracks on inclined-plane 38, grooved tracks is arranged on the tank wall of terraced cage or grabs on the housing of rope device 6, fixedly slide block 27 is provided with the slip plane 36 that is parallel to inclined-plane 37, fixedly slide block 29 is provided with the slip plane 35 that is parallel to inclined-plane 38, movable slider 28, be provided with Compress Spring 25 and Compress Spring 26 on the bottom surface of movable slider 31, when upspringing, Compress Spring 25 and Compress Spring 26 promote that two movable sliders enter fixedly slide block 27 and fixedly in the slide block 29, in the process that advances, because above-mentioned cylindric protruding thing 50 and cylindric protruding thing 51 insert and are parallel in the grooved tracks on inclined-plane 37, above-mentioned cylindric protruding thing 52 and cylindric protruding thing 53 insert and are parallel in the grooved tracks on inclined-plane 38, movable slider 28 under the constraint of above-mentioned grooved tracks, movable slider 31 very successfully is advanced into fixedly slide block 27, fixedly in the slide block 29, and at fixing 27 pairs of movable sliders 28 of slide block, fixing 29 pairs of movable sliders 31 of slide block, clamped the slow rope 8 that falls when exerting pressure, this moment, gravity and the downward motion of terraced cage made the slow rope 8 that falls produce pulling force upwards and drive movable slider 28 under the effect of friction force, movable slider 31 more in depth enters fixedly slide block 27, fixedly in the slide block 29, enter fixedly slide block 27, fixedly slide block 29 is darker, fixedly slide block 27, fixedly slide block 29 is by

slip plane

36 and 35 pairs of movable sliders 28 of slip plane, the pressure that movable slider 31 produces is larger, this has just produced the effect of self-locking, slow like this rope 8 falls under the clamping of movable slider 28 and movable slider 31 and gravity factor, under the self-locking action that the factor that moves downward produces, be fastened on the terraced cage of grabbing on the rope device 6 and can not fall with regard to being fixed on slow fall on the rope 8.Also have, we can be connected with stay cord upwards at movable slider 28, movable slider 31, stay cord upwards can draw in movable slider 28, movable slider 31 fixedly in the slide block under external force, the above-mentioned stay cord that makes progress can enter terraced case by runner or terraced cage provides use, and movable slider 28, movable slider 31 also can start by sensor or mechanical device grabs the rope device and Compress Spring is upspring or motor action or hydraulic stem action promote above-mentioned movable slider and enter in the above-mentioned fixedly slide block and clamp the slow rope 8 that falls.As shown in Figure 3, described movable slider 28, movable slider 31 are near the slow shape undulate shape that falls the one side of rope 8, and movable slider 28 has wavy surface 30, and movable slider 31 has wavy surface 55, and wavy surface 30 and wavy surface 55 coincide.

As shown in Figure 4, movable slider 28, movable slider 31 compressed springs 25 and Compress Spring 26 are upspring and are advanced into fixedly slide block 27 and fixedly in the slide block 29, and at fixing 29 pairs of movable sliders 31 of slide block, clamped the slow rope 8 that falls when fixedly 27 pairs of movable sliders 28 of slide block are exerted pressure, this moment, the gravity of terraced cage made the slow rope 8 that falls produce pulling force upwards and drive movable slider 28 under the effect of friction force with the factor that moves downward, movable slider 31 is more fixing slide block 27, fixedly in the slide block 29, enter fixedly slide block 27, fixedly slide block 29 is darker, fixedly slide block 27, fixing 29 pairs of movable sliders 28 of slide block, the pressure that movable slider 31 produces is larger, this has just produced the effect of self-locking, the slow like this rope 8 that falls is under the clamping of movable slider 28 and movable slider 31 and grab rope device 6 under the self-locking action that produces of gravity factor and be fixed on slow falling on the rope 8, is fastened on the terraced cage of grabbing on the rope device 6 and can not fall with regard to being fixed on slow fall on the rope 8.

As shown in Figure 5, slow fall rope 59 and in descending lifeline 63, stretch out, descending lifeline 63 comprises metal ring track 65, be close to metal ring track 65 surfaces and be provided with magnet 61 and magnet 62, magnet 61 and magnet 62 are fixed on the supporting construction 66, supporting construction 66 is fixed in the rotating shaft 58, rotating shaft 58 is rotatable, be provided with the slow rope 60 that falls of a volume in the rotating shaft 58, the slow rope 60 that falls is pulled out the part of descending lifeline 63 and is the slow rope 59 that falls, above-mentioned descending lifeline 63 is arranged at floor below the building to enter on the flooring of ground floor or the second layer, slow fall rope 59 from descending lifeline 63 extend out and by rotating disk or rod iron change direction extend up to above the building and coiling by be arranged on affiliated building building above the cantilever design top rotary table that is connected of agent structure change direction to downward-extension, above-mentioned to downward-extension slow fall rope 59 pass on the terraced cage that is fixedly installed on construction elevator grab rope device after fix on the ground, the above-mentioned rope device of grabbing can be enclosed within slow periphery of falling rope 59 and carries out lifting action when normal, in construction companion ladder generation stall or when falling, the rope device of grabbing that is arranged on the terraced cage fastens the slow rope 59 that falls, the ladder cage falls by slow that rope 59 pullings are slow falls rope 60 from descending lifeline 63 interior extractions, the above-mentioned slow rope 60 that falls drives rotating shaft 58 rotations, magnet 61 and magnet 62 that rotating shaft 58 drives on the supporting construction 66 rotate at metal ring track 65, since magnet 61 and magnet 62 in rotation process at metal ring track 65 interior generation magnetic field eddy current, the magnetic field eddy current hinders the rapid movement of magnet 61 and magnet 62, can make the magnet 61 of twirl and the speed of magnet 62 quickly fall to safety speed, so terraced cage just can descend by slow slow rope 60 safety under the effect of descending lifeline 63 of falling of rope 59 pullings of falling, and supporting construction 70 is connected with circular orbit 65 and circular orbit 65 is played a supportive role in addition.

As shown in Figure 6, slow fall rope 59 and in descending lifeline 63, stretch out, descending lifeline 63 comprises metal ring track 65, be close to metal ring track 65 and be provided with magnet 61, the position correspondence that the below of magnet 61 is symmetrical in metal ring track 65 is provided with magnet, two blocks of magnet are fixed on the supporting construction, supporting construction is fixed in the rotating shaft 58, rotating shaft 58 is rotatable, be provided with the slow rope 60 that falls of a volume in the rotating shaft 58, the slow rope 60 that falls is pulled out the part of descending lifeline 63 and is the slow rope 59 that falls, slow fall rope 59 and extend out from descending lifeline 63, in construction companion ladder generation stall or when falling, the rope device of grabbing that is arranged on the terraced cage fastens the slow rope 59 that falls, the ladder cage falls by slow that rope 59 pullings are slow falls rope 60 from descending lifeline 63 interior extractions, the above-mentioned slow rope 60 that falls drives rotating shaft 58 rotations, magnet 61 on the rotating shaft 58 drive supporting constructions and the magnet of below correspondence rotate at metal ring track 65, since in above-mentioned two magnet rotation processes at metal ring track 65 interior generation magnetic field eddy current, the magnetic field eddy current hinders the rapid movement of two blocks of magnet, can make the speed of the magnet of the magnet 61 of twirl and below correspondence quickly fall to safety speed, cage just can descend by slow slow rope 60 safety under the effect of descending lifeline 63 of falling of rope 59 pullings of falling like this, and supporting construction 70 is connected with circular orbit 65 and circular orbit 65 is played a supportive role.

Claims

1. the anti-drop system of a construction elevator, it is characterized in that: described anti-drop system comprises grabs rope device, the slow rope that falls, the above-mentioned rope device of grabbing is mounted on the terraced cage of described construction elevator, an above-mentioned slow end that falls rope is connected on the bottom or intermediate floor of building, above-mentioned slow fall that rope extends upward and change direction by rotating disk or runner or cylinder or rod iron extend through downwards and be arranged on grabbing rope device and being fixed on the suitable part in terraced cage below on the terraced cage, terraced cage can promptly be fixed the slow rope that falls by grabbing rope device.

2. the anti-drop system of a kind of construction elevator as claimed in claim 1, it is characterized in that: the described rope device of grabbing comprises movable slider, fixing slide block, above-mentioned fixedly slide block is fixed on the tank wall of terraced cage or grabs on the housing of rope device, movable slider is movably arranged on the tank wall of terraced cage or grabs on the housing of rope device, and above-mentioned movable slider can enter to insert fixedly to clamp to delay in the slide block and fall rope.

3. the anti-drop system of a kind of construction elevator as claimed in claim 2, it is characterized in that: described movable slider has two, is provided with Compress Spring on the bottom surface of two movable sliders, promotes two movable sliders when Compress Spring is upspring and enters fixedly in the slide block.

4. the anti-drop system of a kind of construction elevator as claimed in claim 2, it is characterized in that: described movable slider is connected with stay cord, and stay cord can draw in movable slider fixedly in the slide block under external force.

5. the anti-drop system of a kind of construction elevator as claimed in claim 2 is characterized in that: the close slow shape undulate shape that falls the one side of rope of described movable slider.

6. the anti-drop system of a kind of construction elevator as claimed in claim 1, it is characterized in that: the described slow upper end that falls rope is connected on damper or energy disperser or spring or the descending lifeline, and above-mentioned damper or energy disperser or spring or descending lifeline are fixedly installed on bottom or the intermediate floor.

7. the anti-drop system of a kind of construction elevator as claimed in claim 6, it is characterized in that: described descending lifeline comprises the metal ring track, the surface of being close to the metal ring track is provided with magnet, magnet is fixed on the supporting construction, supporting construction is fixed in the rotating shaft, rotating shaft can center on bearing rotates, and be provided with the described slow rope that falls of a volume in the rotating shaft, and the above-mentioned slow rope that falls drives the rotating shaft rotation and is with moving magnet to slide at the metal ring track under the effect of pulling force.

8. the anti-drop system of a kind of construction elevator as claimed in claim 6, it is characterized in that: described descending lifeline comprises the metal ring track, the two sides of being close to the metal ring track is provided with magnet one and magnet two, magnet one and magnet two are fixed on the supporting construction, supporting construction is fixed in the rotating shaft, rotating shaft can be rotated around bearing, be provided with the described slow rope that falls of a volume in the rotating shaft, the above-mentioned slow rope that falls drives the rotating shaft rotation and is with moving magnet one and magnet two to slide at the metal ring track under the effect of pulling force.

9. the anti-drop system of a kind of construction elevator as claimed in claim 6 is characterized in that: described metal ring track is provided with separates the crack.

10. the anti-drop system of a kind of construction elevator as claimed in claim 1 is characterized in that: described rotating disk or runner or cylinder or rod iron are arranged on the beam of building or the wall-attached frame between post or shear wall or guide rail bracket or guide rail bracket and the building or on the cantilever of the building of encorbelmenting.