CN105858399A - Novel safety gear and elevator falling-preventing device - Google Patents
Novel safety gear and elevator falling-preventing device Download PDFInfo
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- CN105858399A CN105858399A CN201610390496.7A CN201610390496A CN105858399A CN 105858399 A CN105858399 A CN 105858399A CN 201610390496 A CN201610390496 A CN 201610390496A CN 105858399 A CN105858399 A CN 105858399A
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- China
- Prior art keywords
- flexible member
- guide rail
- elevator
- upper beam
- falling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
Abstract
The invention provides a novel safety gear and an elevator falling-preventing device. According to the novel safety gear, upper and lower guide wheels are additionally arranged in an existing safety gear structure, and therefore safety gear misoperation is avoided during normal elevator operation. The elevator falling-preventing device comprises a first flexible component and the novel safety gear which are combined for use or further comprises a guide rail and a second flexible component which are installed in a matched mode. By means of the structure, elevator safety is improved, impact force of the safety gear acting process on a car, the guide rail, a guide rail support and a well enclosure is lowered, the elevator car is directly hung on an upper beam through a flexible force bearing component after being stopped, the hidden danger that the guide rail, the guide rail support and the well enclosure are loosened and disengaged is eliminated, the possibility that elevator passengers are injured is greatly lowered, and the installation and maintenance cost is reduced.
Description
Technical field
The present invention relates to the safety device of a kind of elevator, particularly to Novel safety tongs and device for preventing elevator from falling.
Background technology
Device for preventing elevator from falling is the requisite safety device of elevator, is mainly used in preventing that lift car is out of control falls and disconnected rope pendant
Fall.Existing device for preventing elevator from falling is by safety tongs assembly, safety tongs lifting link gear, overspeed preventer device, car guide rail
Constitute.When device for preventing elevator from falling action, the safety tongs being mounted on lift car by lift car stop on guide rail,
So there are the following problems:
1, it is rigidity because of guide rail, therefore bigger impulsive force during safety tongs action, can be produced, elevator passenger may be damaged；
2, because the direct stop of lift car is on guide rail, therefore require that guide rail, rail brackets, well enclosure have higher bearing capacity；
3, during each safety tongs action, guide rail, rail brackets, well enclosure all can be produced impact, be likely to result in rail brackets pine
Move and come off, cause security performance to decline.Therefore require that guide rail, rail brackets, well enclosure have higher impact resistance；
4, during each safety tongs action, guide rail surface can all be damaged, it is often necessary to guide rail surface is repaired；
5, through grinding the guide rail of maintenance, brake force during safety tongs action can be reduced, cause braking distance to increase.
The existence of these problems, illustrates that existing device for preventing elevator from falling exists certain potential safety hazard, also necessarily increases the peace of elevator
Dress maintenance cost.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art, it is provided that a kind of structure Novel safety tongs cleverly, it can make safety
Voussoir in pincers, not because rocking and misoperation, improves the safety that elevator uses.
It is a further object to provide device for preventing elevator from falling.
In order to achieve the above object, the present invention is by the following technical solutions:
A kind of Novel safety tongs, including caliper and two voussoirs that are slidably mounted on caliper respectively, the top of described caliper is provided with a pair
The first relative guide wheel, the bottom of described caliper is provided with a pair the second relative guide wheel；Two the first guide wheels are generally aligned in the same plane,
Two the second guide wheels are generally aligned in the same plane, and two planes parallel/overlap；
In gap between center line and two voussoirs in the gap between the center line in gap between two first guide wheels, two second guide wheels
Line three overlaps；Or three center lines are generally aligned in the same plane, and the plane at three center line places is led with two the first guide wheel/two second
The plane at wheel place is vertical；
Gap between two voussoirs is more than the gap between two first guide wheel/two second guide wheels.
A kind of device for preventing elevator from falling, including the upper beam in two sets or the above first anti-fall assembly of two sets and elevator hoistways and underbeam；
Described first anti-fall assembly includes the Novel safety tongs described in a flexible member and a claim 1；Described flexible member is
First flexible member；
Described first flexible member is long elements, the upper beam that the two ends of described first flexible member are separately fixed in elevator hoistways and
The guide rail parallel of underbeam and described first flexible member and lift car；
Described Novel safety tongs is fixedly mounted on outside car frame and is sandwiched on described first flexible member, the first guide wheel and second
Guide wheel all contacts with described first flexible member.
As preferably, also include the guide rail of lift car and for the flexible member supporting with described guide rail；Described flexible member is
Second flexible member；
Slide upper beam and underbeam respectively that be located in elevator hoistways at the two ends of described guide rail；
Described second flexible member is long elements；The two ends of described second flexible member are separately fixed at described upper beam and described underbeam；
Described second flexible member and described guide rail parallel and fixing be stacked on described guide rail.
As preferably, also include that tightening regulator, the upper end of described flexible member are arranged on described by tightening regulator
Beam；
Described tightening regulator includes the adjusting means of the rate of tension for adjusting described flexible member and buffer unit or buffering
Part；What described adjusting means applied the face of downward pressure and described upper beam to upper beam bears the pressure that it is applied by described adjusting means
Buffer unit or bolster it is provided with between the face of power.
As preferably, described buffer unit is spring buffer, or constitutes with spring buffer and hydraulic buffer
Buffer unit.
As preferably, described flexible member is steel wire rope or steel band or other flexible rope or belt.
A kind of device for preventing elevator from falling, including the upper beam in two sets or the above second anti-fall assembly of two sets and elevator hoistways and underbeam；
Described second anti-fall assembly includes the guide rail of a lift car, a flexible member and a safety tongs；
Slide upper beam and underbeam respectively that be located in elevator hoistways at the two ends of described guide rail；
Described flexible member is long elements；The two ends of described flexible member are separately fixed at described upper beam and described underbeam；Described soft
Property component and described guide rail parallel and fixing be stacked on described guide rail；
Described guide rail load-carrying member flexible with described flexible member composition；Described safety tongs is fixedly mounted on outside car frame and presss from both sides
In described guide rail.
As preferably, also include that tightening regulator, the upper end of described flexible member are arranged on described by tightening regulator
Beam；
Described tightening regulator includes the adjusting means of the rate of tension for adjusting described flexible member and buffer unit or buffering
Part；What described adjusting means applied the face of downward pressure and described upper beam to upper beam bears the pressure that it is applied by described adjusting means
Buffer unit or bolster it is provided with between the face of power.
As preferably, described buffer unit is spring buffer or constitutes with spring buffer and hydraulic buffer
Buffer unit.
As preferably, described flexible member is steel wire rope or steel band or other flexible rope or belt.
Compared with prior art, the method have the advantages that
By said structure, elevator safety is promoted, reduce safety tongs course of action to car, guide rail, rail brackets,
The impulsive force of well enclosure, after stop, lift car is directly hung on upper beam by flexible load-carrying member, eliminates guide rail, guide rail props up
Frame, the hidden danger of well enclosure loose or dislocation, be substantially reduced the probability that elevator passenger is hurt, and reduces installation and maintenance cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 2；
Fig. 2 is the structural representation of Novel safety tongs of the present invention；
Fig. 3 is the structural representation of tightening regulator of the present invention；
Fig. 4 is the structural representation of embodiment 3 of the present invention；
Fig. 5 is the structural representation of embodiment 4 of the present invention.
In figure:
1 Novel safety tongs；11 calipers；12 voussoirs；13 upper blocks；14 lower tumblers；2 flexible members；31—
Adjusting means；32 buffer units/bolster；4 safety tongs lifting link gears；5 limiter of speeds；6 upper beams；7 underbeams；
8 lift cars；9 safety tongs；10 lead boots；101 guide rails；102 guide posts.
In conjunction with accompanying drawing, the invention will be further described with specific embodiment.
Detailed description of the invention
Embodiment 1
Refering to shown in Fig. 2, a kind of Novel safety tongs 1 of the present invention, including caliper 11 and be slidably mounted on caliper 11 respectively
Two voussoirs 12, the top of caliper 11 is provided with a pair relative upper block 13, the bottom of caliper 11 be provided with a pair relative under lead
Wheel 14.Two upper blocks 13 are generally aligned in the same plane, and two lower tumblers 14 are generally aligned in the same plane, and two planes parallel/overlap.
In gap between center line and two voussoirs 12 in the gap between the center line in gap between two upper blocks 13, two lower tumblers 14
Line three overlaps；Gap between two voussoirs 12 is more than the gap between 13/ liang of lower tumbler of two upper blocks.As another embodiment,
Article three, center line is generally aligned in the same plane, and the plane at three center line places is vertical with the plane at two upper block/two lower tumbler places.
According to the demand used, a voussoir clamping face of the voussoir 12 of Novel safety tongs 1 arranges V-groove or half-circular cutouts groove,
Another voussoir clamping face arranges arcuate groove；Voussoir clamping face may be configured as undaform；The material of voussoir clamping face can use nonmetal
Material.
Embodiment 2
Refering to shown in Fig. 1 to Fig. 3, a kind of device for preventing elevator from falling, including in the two anti-fall assemblies of set first and elevator hoistways
Upper beam 6 and underbeam 7.First anti-fall assembly is arranged in the both sides of lift car.
First anti-fall assembly includes the Novel safety tongs 1 in flexible member 2, embodiment 1.
Flexible member 2 is long elements, and the two ends of flexible member 2 are separately fixed at the upper beam 6 of elevator structure and underbeam 7 and flexibility
Component 2 and the guide rail parallel of lift car 8.Novel safety tongs 1 is fixedly mounted on outside lift car envelope and is sandwiched in flexible structure
On part 2, upper block 13 and lower tumbler 14 all contact with flexible member 2.Flexible member 2 is steel wire rope or steel band or other is strong
Spend enough flexible rope or belt.
The upper end of flexible member 2 is arranged on upper beam 6 by tightening regulator.Tightening regulator includes for adjusting flexible structure
The adjusting means 31 of the rate of tension of part 2, what adjusting means 31 applied the face of downward pressure and upper beam 6 to upper beam 6 bears tune
Regulating device 31 is provided with buffer unit/bolster 32 between the face to the pressure that it applies.As one of which embodiment, regulation
Device 31 includes that the screw rod that be connected fixing with flexible member 2 and the adjusting nut coordinated with screw rod, the corresponding screw rod of upper beam 6 are provided with peace
Dress hole, screw rod penetrating mounting holes, nut coordinates with the threaded upper ends of screw rod and is positioned at above upper beam 6, and bolster 32 is cushion pad,
Cushion pad is located between the downside of nut and upper beam 6.Wherein, if adjusting means 31 applies the face of downward pressure to upper beam 6
And bearing of upper beam 6 is provided that buffer unit between the adjusting means 31 face to the pressure that it applies, and embodiment can be accumulation of energy
Type buffer；Or the buffer unit constituted with spring buffer and hydraulic buffer, as being bullet when spring buffer
During spring, spring housing forms buffer unit outside hydraulic buffer；Or spring buffer is placed side by side with energy-dissipating type phase buffer
Composition buffer unit.
Safety tongs lifting link gear 4 is connected with the voussoir 12 of Novel safety tongs 1；Limiter of speed 5 lifts link gear with safety tongs
4 connect.
When described first flexible member is steel wire rope, a voussoir clamping face of the voussoir 12 of Novel safety tongs 1 arranges V-groove
Or half-circular cutouts groove, another voussoir clamping face arranges arcuate groove；When described first flexible member is steel band, and voussoir clamping face can
It is set to undaform；The material of voussoir clamping face can use nonmetallic materials.
In order to improve further lift car 8 anti-fall braking time stability and reliability, device for preventing elevator from falling can be provided with two sets
Above second fall arrest assembly.
The operation principle of embodiment 2: when lift car 8 speed of service exceedes setting value, limiter of speed 5 action, limiter of speed 5
Rope band moves safety tongs lifting link gear 4 and will carry on the voussoir 12 of Novel safety tongs 1, and two voussoirs 12 are close and clamp flexible structure
Part 2, in the power conduction suffered by flexible member 2 to adjusting means 31, power is acted on buffer unit/bolster by adjusting means 31
On 32, buffer unit/bolster 32 transfers force on upper beam 6 by after cushioning effect, and final lift car 8 will be by stop
On flexible member 2.Now lift car 8 is directly hung on flexible member 2 by Novel safety tongs 1, and flexible member
2 are connected on upper beam 6, it is ensured that lift car 8 will not fall.
When carrying on lift car 8, can be by stop status releasing, Novel safety tongs 1 automatically resets.
Carrying during clamping flexible member 2 on the voussoir 12 of Novel safety tongs 1, flexible member 2, by toward drop-down, buffers
Device/bolster 32 plays cushioning effect in this process, is substantially reduced impulsive force.
In the whole process of device for preventing elevator from falling work, guide rail, rail brackets, well enclosure are all not involved in, and do not stress and are not subject to
Impact.Guide rail be only used for elevator properly functioning time lift car 8 guide.
As the operation program of the course of action of device for preventing elevator from falling and the existing falling proof device utilizing guide rail stop car is
, stop status releasing, safety tongs 1 reset routine are also the same.But the object of safety tongs clamping is different, and action is buffered
Cheng Butong, the support member of participation is the most different.
The feature of embodiment 2:
1) elevator safety is promoted.Safety tongs does not use guide rail stop, and safety tongs course of action has buffer unit/slow
The cushioning effect of stamping, reduces the impulsive force to lift car 8, and after stop, lift car 8 is directly hung by flexible member 2
Hanging on upper beam 6, whole process all without producing impact, eliminates guide rail to guide rail, rail brackets, well enclosure, guide rail props up
Frame, the hidden danger of well enclosure loose or dislocation, greatly reduce the probability that elevator passenger is hurt.
2) reliability of hoisting elevator car 8 stop.Because not limited by rail shapes, size and material, safety tongs can be made
The shape of voussoir, clamping face material and the flexible member 2 of voussoir reach optimal matching, to ensure to produce suitable stop power,
Improve stability and the reliability of stop elevator car 8.
3) manufacture installation cost is reduced.During because of safety tongs action, whole process to guide rail, rail brackets, well enclosure all without product
Raw impact, lift car 8 is directly hung on upper beam 6 by flexible member 2, and the effect of guide rail is only remaining to lift car 8
Guide, require to be substantially reduced to the structure stress of guide rail, rail brackets, well enclosure, guide rail, rail brackets, the knot of well enclosure
Configuration formula, arrangement, installation site, material select all can change flexibly, and even guide rail can be hidden in well enclosure, Ying Ke
Manufacture installation cost is greatly reduced；
4) maintenance cost is reduced.Do not result in flexible member 2 during safety tongs action to damage, more do not result in guide rail surface and other
Parts damage, and safety tongs resets can recover all component original states, it is not necessary to repair any parts, maintenance should be greatly reduced
Cost.
5) elevator design space has been expanded.Device for preventing elevator from falling is independently of outside guide rail, and stop elevator car 8 no longer needs
Wanting guide rail, the design of device for preventing elevator from falling is no longer restricted by guide rail, rail brackets, well enclosure, and cage guide, guide rail prop up
Frame, the design of well enclosure are the most no longer restricted by safety tongs.Relieve lift car 8 and guide the mutual restriction with safety tongs stop
After, in elevator hoistways, the design of parts all will have greater flexibility, significantly widen elevator design, particularly hoistway design
Space.
6) safety tongs arranges upper block 13, lower tumbler 14, it is ensured that elevator normal course of operation voussoir is persevering with flexible member 2
Fixed gap, does not causes coming in contact because rocking, it is to avoid misoperation.
Embodiment 3
Refering to shown in Fig. 4, the structure of the device for preventing elevator from falling described in the present embodiment is below increasing on the basis of embodiment 2
Structure: also include the guide rail 101 of lift car and for the flexible member 2 supporting with guide rail 101；The two ends of guide rail 101 are divided
Hua Dong not be located at upper beam 6 and the underbeam 7 of elevator hoistways, the concrete mounting means that the one of which of guide rail 101 is feasible (is led as follows
The top and bottom mounting means of rail 101 is identical): as a example by the upper end of guide rail 101 is installed, it is provided with mounting opening also at upper beam 6
In mounting opening, activity runs through and is provided with a guide post 102, and the lower end of guide post is fixing with the upper end of guide rail 101 to be connected.Flexible
Component 2 is long elements；The two ends of flexible member 2 are separately fixed at upper beam 6 and underbeam 7；Flexible member 2 is flat with guide rail 101
Go and be stacked on guide rail 101, and interfixing with guide rail 101.
The upper end of flexible member 2 is arranged on upper beam 6 by tightening regulator；Tightening regulator includes for adjusting flexible structure
The adjusting means 31 of the rate of tension of part 2.What adjusting means 31 applied the face of downward pressure and upper beam 6 to upper beam 6 bears tune
Regulating device 31 is provided with buffer unit/bolster 32 between the face to the pressure that it applies.As one of which embodiment, regulation
Device 31 includes that the screw rod that be connected fixing with flexible member 2 and the adjusting nut coordinated with screw rod, the corresponding screw rod of upper beam 6 are provided with peace
Dress hole, screw rod penetrating mounting holes, nut coordinates with the threaded upper ends of screw rod and is positioned at above upper beam 6, and bolster 32 is cushion pad,
Cushion pad is located between the downside of nut and upper beam 6.Wherein, if adjusting means 31 applies the face of downward pressure to upper beam 6
And bearing of upper beam 6 is provided that buffer unit between the adjusting means 31 face to the pressure that it applies, and embodiment can be accumulation of energy
Type buffer；Or the buffer unit constituted with spring buffer and hydraulic buffer, as being bullet when spring buffer
During spring, spring housing forms buffer unit outside hydraulic buffer；Or spring buffer is placed side by side with energy-dissipating type phase buffer
Composition buffer unit.
The operation principle of embodiment 3:
When lift car 8 speed of service exceedes setting value, limiter of speed 5 action, limiter of speed 5 rope band moves safety tongs lifting linkage
Mechanism 4 will carry on the voussoir 12 of Novel safety tongs 1, and two voussoirs 12 are close and clamp single flexible member 2, the most soft
Property power conduction suffered by component 2 in adjusting means 31, power is acted on buffer unit/bolster 32 by adjusting means 31, buffering
Device/bolster 32 is by being delivered to impulsive force on upper beam 6 after cushioning effect, and final lift car 8 will be by stop individually
Flexible member 2 on.Now lift car 8 is directly hung on single flexible member 2 by Novel safety tongs 1, and single
Only flexible member 2 is connected on upper beam 6, it is ensured that lift car 8 will not fall.
When carrying on lift car 8, can be by stop status releasing, Novel safety tongs 1 automatically resets.
Carrying during clamping single flexible member 2 on the voussoir 12 of Novel safety tongs 1, single flexible member 2 is past
Drop-down, buffer unit/bolster 32 plays cushioning effect in this process, is substantially reduced impulsive force.
In the whole process of device for preventing elevator from falling work, guide rail 101, rail brackets, well enclosure are all not involved in, and do not stress also
It is not hit.Guide rail 101 be only used for elevator properly functioning time lift car 8 guide.
As the operation program of the course of action of device for preventing elevator from falling and the existing falling proof device utilizing guide rail stop car is
, stop status releasing, safety tongs 1 reset routine are also the same.But the object of safety tongs clamping is different, and action is buffered
Cheng Butong, the support member of participation is the most different.
Novel safety tongs is sandwiched in single flexible member 2, and the boots 10 of leading of lift car then operate in and realize elevator on guide rail 101
The guiding of car.When lift car is braked, the voussoir clamping flexible member 2 of Novel safety tongs.
Guide rail 101 realizes fixing by flexible member 2, and the linearity of guide rail is readily obtained guarantee, simplifies hoistway and installs
Structure, reduces installation difficulty, saves installation cost and time.
Embodiment 4
Refering to shown in Fig. 5, a kind of device for preventing elevator from falling of the present invention, including the two anti-fall assembly of set second and elevators
Upper beam 6 in road and underbeam 7.Second anti-fall assembly is arranged in the both sides of lift car.
Second anti-fall assembly includes guide rail 101, flexible member 2 and a safety tongs 9 of a lift car.The two ends of guide rail 101
Sliding respectively and be located at upper beam 6 and the underbeam 7 of elevator hoistways, the concrete mounting means that the one of which of guide rail 101 is feasible (is led as follows
The top and bottom mounting means of rail 101 is identical): as a example by the upper end of guide rail 101 is installed, it is provided with mounting opening also at upper beam 6
Being movably equipped with a guide post 102 in mounting opening, the lower end of guide post 102 is fixing with the upper end of guide rail 101 to be connected.Flexible
Component 2 is long elements；The two ends of flexible member 2 are separately fixed at upper beam 6 and underbeam 7；Flexible member 2 is flat with guide rail 101
Go and be stacked on guide rail 101, and interfixing with guide rail 101.Guide rail 101 and flexible member 2 form flexible load structure
Part.Safety tongs 9 is arranged on lift car and is sandwiched in guide rail 101.Flexible member 2 be steel wire rope or steel band or other intensity enough
Flexible rope or belt.
The upper end of flexible member 2 is arranged on upper beam 6 by tightening regulator；Tightening regulator includes for adjusting flexible structure
The adjusting means 31 of the rate of tension of part 2.What adjusting means 31 applied the face of downward pressure and upper beam 6 to upper beam 6 bears tune
Regulating device 31 is provided with buffer unit/bolster 32 between the face to the pressure that it applies.As one of which embodiment, regulation
Device 31 includes that the screw rod that be connected fixing with flexible member 2 and the adjusting nut coordinated with screw rod, the corresponding screw rod of upper beam 6 are provided with peace
Dress hole, screw rod penetrating mounting holes, nut coordinates with the threaded upper ends of screw rod and is positioned at above upper beam 6, buffer unit/bolster 32
For cushion pad, cushion pad is located between the downside of nut and upper beam 6.Wherein, if upper beam 6 is applied downwards by adjusting means 31
The face of pressure and bearing of upper beam 6 be provided that buffer unit between the adjusting means 31 face to the pressure that it applies, it is implemented
Example can be spring buffer；Or the buffer unit constituted with spring buffer and hydraulic buffer；As worked as accumulating type
When buffer is spring, spring housing forms buffer unit outside hydraulic buffer；Or spring buffer buffers with energy-dissipating type
Phase composition placed side by side buffer unit.
Safety tongs lifting link gear 4 is connected with the voussoir 12 of safety tongs 9；Limiter of speed 5 is with safety tongs lifting link gear 4 even
Connect.
In order to improve further lift car 8 anti-fall braking time stability and reliability, device for preventing elevator from falling can be provided with two sets
Above second fall arrest assembly.
The operation principle of embodiment 4:
When the lift car speed of service exceedes setting value, limiter of speed 5 action, limiter of speed 5 rope band moves safety tongs lifting gear
Structure 4, safety tongs lifting link gear 4 drives the voussoir 12 of safety tongs 9 to rise, and voussoir clamps guide rail 101, because of guide rail 101
Interfixing with flexible member 2, so flexible member 2 is by suffered power conduction to adjusting means 31, adjusting means 31 will
Power acts on buffer unit/bolster 32, and buffer unit/bolster 32 transfers force on upper beam 6 by after cushioning effect,
Final lift car by by stop on the flexible load-carrying member that guide rail 101 and flexible member 2 are formed.Now lift car passes through
Safety tongs 9 clamp rail 101 and hang on flexible load-carrying member, and the flexible member 2 in flexible load-carrying member is connected to
On beam 6, it is ensured that lift car will not fall.
When carrying on lift car, can be by stop status releasing, safety tongs 9 automatically resets.At safety tongs 9 course of action, lead
The flexible load-carrying member that rail 101 and flexible member 2 are formed is by toward drop-down, and buffer unit/bolster 32 rises slow in this process
Punching effect, is substantially reduced impulsive force.
In device for preventing elevator from falling, guide rail 101 and flexible member 2 are implemented in combination with installing, it may not be necessary to rail brackets, no
Contact with well enclosure, and guide rail 101 be rigidity, can meet elevator properly functioning time lift car guide requirement.
The work process of device for preventing elevator from falling is the same with the operation program of the existing falling proof device utilizing guide rail stop,
Stop status releasing, safety tongs 9 reset routine are also the same, and the object of safety tongs 9 clamping is also the same, but safety tongs
The object of 9 clampings has buffer unit, and safety tongs 9 action buffering course is different.
The advantage of embodiment 4:
1) hoisting elevator safety.During safety tongs 9 braking procedure, there is the buffering of flexible member 2 and buffer unit/bolster 32
Effect, reduces the impulsive force to lift car, and after stop, lift car is directly hung on upper beam 6 by flexible member 2,
Structure need not the support of rail brackets, well enclosure, eliminate rail brackets, the hidden danger of well enclosure loose or dislocation, reduce
The probability that elevator passenger is hurt.
2) manufacture installation cost is reduced.Guide rail 101 is installed and be need not rail brackets, and the structure stress of elevator shaft wall requires significantly
Reduce, eliminate the installation of rail brackets, simplify hoistway structure, the version of hoistway, the installation method of elevator, zero
The equal flexibly changing of selection of part material, should be greatly reduced manufacture installation cost, install high rise elevator hoistway especially, particularly
Substantially.
3) maintenance cost is reduced.Though being still likely to result in guide rail 101 surface damage during safety tongs 9 action, but do not result in soft
Property component 2 damage, even if guide rail surface damage also can alleviate many, the most also can reduce maintenance cost.
Upper beam 6 in heretofore described elevator hoistways refers to the original structural beams in top of elevator hoistways, it is possible to refer at electricity
The upper beam that ladder hoistway overhead is arranged to coordinate device for preventing elevator from falling.Underbeam 7 in heretofore described elevator hoistways refers to
It is for the underbeam coordinating device for preventing elevator from falling to arrange in elevator hoistways bottom.
In the present invention, when the specific embodiment of flexible member is steel wire rope, the determination mode of wirerope diameter is as follows:
According to the relation of safety tongs brake force Yu load, safety tongs brake force meansigma methods:
F=16 (P+Q)
P is car and adnexa gross mass, and Q is nominal load.
If setting the 2 anti-fall assemblies of set, often 2 steel wire ropes of set, flexible member totally 4 steel wire ropes.
If as a example by the elevator that load is bigger, taking P=3000 (kg), Q=5000 (kg)
Then there is F=16 (3000+5000)=128000 (N)
Take impact safety coefficient 12, choose steel wire rope (1) using 12*128000=1536000 (N) as total load.
: every steel wire rope load 384000 (N).The steel wire rope of optional more than diameter 26mm.
Another: according to the requirement of GB7588, average retardation rate during safety tongs device braking should take maximum between 0.2 1.0g
Value 1.0g, now has:
F=1.0g (P+Q)=9.8 (3000+5000)=78400 (N)
Take impact safety coefficient 12, choose steel wire rope (1) using 12*78400=940800 (N) as total load.
: every steel wire rope load 235200 (N).The steel wire rope of optional more than diameter 21.5mm.
The invention is not limited in above-mentioned embodiment, if to the various changes of the present invention or modification without departing from the spirit of the present invention
And scope, if within the scope of these change claim and the equivalent technologies belonging to the present invention with modification, then the present invention is also intended to
Comprise these to change and variation.
Claims (10)
1. a Novel safety tongs, including caliper and two voussoirs that are slidably mounted on caliper respectively, it is characterised in that described caliper
Top be provided with a pair the first relative guide wheel, the bottom of described caliper is provided with a pair the second relative guide wheel；Two the first guide wheels
Being generally aligned in the same plane, two the second guide wheels are generally aligned in the same plane, and two planes parallel/overlap；
In gap between center line and two voussoirs in the gap between the center line in gap between two first guide wheels, two second guide wheels
Line three overlaps；Or three center lines are generally aligned in the same plane, and the plane at three center line places is led with two the first guide wheel/two second
The plane at wheel place is vertical；
Gap between two voussoirs is more than the gap between two first guide wheel/two second guide wheels.
2. a device for preventing elevator from falling, it is characterised in that in including two sets or the above first anti-fall assembly of two sets and elevator hoistways
Upper beam and underbeam；
Described first anti-fall assembly includes the Novel safety tongs described in a flexible member and a claim 1；Described flexible member is
First flexible member；
Described first flexible member is long elements, the upper beam that the two ends of described first flexible member are separately fixed in elevator hoistways and
The guide rail parallel of underbeam and described first flexible member and lift car；
Described Novel safety tongs is fixedly mounted on outside car frame and is sandwiched on described first flexible member, the first guide wheel and second
Guide wheel all contacts with described first flexible member.
Device for preventing elevator from falling the most according to claim 2, it is characterised in that also include lift car guide rail and for
The flexible member supporting with described guide rail；Described flexible member is the second flexible member；
Slide upper beam and underbeam respectively that be located in elevator hoistways at the two ends of described guide rail；
Described second flexible member is long elements；The two ends of described second flexible member are separately fixed at described upper beam and described underbeam；
Described second flexible member and described guide rail parallel and fixing be stacked on described guide rail.
4. according to the device for preventing elevator from falling described in Claims 2 or 3, it is characterised in that also include tightening regulator, institute
The upper end stating flexible member is arranged on described upper beam by tightening regulator；
Described tightening regulator includes the adjusting means of the rate of tension for adjusting described flexible member and buffer unit or buffering
Part；What described adjusting means applied the face of downward pressure and described upper beam to upper beam bears the pressure that it is applied by described adjusting means
Buffer unit or bolster it is provided with between the face of power.
Device for preventing elevator from falling the most according to claim 4, it is characterised in that described buffer unit is spring buffer,
Or the buffer unit constituted with spring buffer and hydraulic buffer.
6. according to the device for preventing elevator from falling described in Claims 2 or 3, it is characterised in that described flexible member be steel wire rope or
Steel band or other flexible rope or belt.
7. a device for preventing elevator from falling, it is characterised in that in including two sets or the above second anti-fall assembly of two sets and elevator hoistways
Upper beam and underbeam；
Described second anti-fall assembly includes the guide rail of a lift car, a flexible member and a safety tongs；
Slide upper beam and underbeam respectively that be located in elevator hoistways at the two ends of described guide rail；
Described flexible member is long elements；The two ends of described flexible member are separately fixed at described upper beam and described underbeam；Described soft
Property component and described guide rail parallel and fixing be stacked on described guide rail；
Described guide rail load-carrying member flexible with described flexible member composition；Described safety tongs is fixedly mounted on outside car frame and presss from both sides
In described guide rail.
Device for preventing elevator from falling the most according to claim 7, it is characterised in that also include tightening regulator, described soft
The upper end of property component is arranged on described upper beam by tightening regulator；
Described tightening regulator includes the adjusting means of the rate of tension for adjusting described flexible member and buffer unit or buffering
Part；What described adjusting means applied the face of downward pressure and described upper beam to upper beam bears the pressure that it is applied by described adjusting means
Buffer unit or bolster it is provided with between the face of power.
Device for preventing elevator from falling the most according to claim 8, it is characterised in that described buffer unit be spring buffer,
Or the buffer unit constituted with spring buffer and hydraulic buffer.
Device for preventing elevator from falling the most according to claim 7, it is characterised in that described flexible member is steel wire rope or steel
Band or other flexible rope or belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390496.7A CN105858399B (en) | 2016-06-01 | 2016-06-01 | Safety tongs and device for preventing elevator from falling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390496.7A CN105858399B (en) | 2016-06-01 | 2016-06-01 | Safety tongs and device for preventing elevator from falling |
Publications (2)
| Publication Number | Publication Date |
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| CN105858399A true CN105858399A (en) | 2016-08-17 |
| CN105858399B CN105858399B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610390496.7A Active CN105858399B (en) | 2016-06-01 | 2016-06-01 | Safety tongs and device for preventing elevator from falling |
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| CN (1) | CN105858399B (en) |
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| CN108584603A (en) * | 2018-07-12 | 2018-09-28 | 湖州德玛吉电梯有限公司 | Elevator overspeed protecting device |
| CN108821064A (en) * | 2018-08-10 | 2018-11-16 | 通力电梯有限公司 | Elevator and its manufacturing method |
| CN108975176A (en) * | 2018-08-28 | 2018-12-11 | 青岛建集团有限公司 | A kind of hoist for construction material and its method for improving |
| CN110510478A (en) * | 2019-09-21 | 2019-11-29 | 中科鼎盛电梯科技江苏有限公司 | A kind of no foundation pit installation elevator |
| CN111706137A (en) * | 2020-06-28 | 2020-09-25 | 江苏科技大学 | A safe anti-falling device for encircling well formula stereo garage |
| CN112660954A (en) * | 2020-12-17 | 2021-04-16 | 广东省特种设备检测研究院东莞检测院 | Loading module, elevator safety protection device performance detection system and method |
| CN108821064B (en) * | 2018-08-10 | 2024-04-19 | 通力电梯有限公司 | Elevator and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108584603A (en) * | 2018-07-12 | 2018-09-28 | 湖州德玛吉电梯有限公司 | Elevator overspeed protecting device |
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| CN108975176B (en) * | 2018-08-28 | 2020-08-18 | 青岛一建集团有限公司 | Building material lifting device and lifting method thereof |
| CN110510478A (en) * | 2019-09-21 | 2019-11-29 | 中科鼎盛电梯科技江苏有限公司 | A kind of no foundation pit installation elevator |
| CN111706137A (en) * | 2020-06-28 | 2020-09-25 | 江苏科技大学 | A safe anti-falling device for encircling well formula stereo garage |
| CN112660954A (en) * | 2020-12-17 | 2021-04-16 | 广东省特种设备检测研究院东莞检测院 | Loading module, elevator safety protection device performance detection system and method |
| CN112660954B (en) * | 2020-12-17 | 2022-05-06 | 广东省特种设备检测研究院东莞检测院 | Loading module, elevator safety protection device performance detection system and method |
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| CN105858399B (en) | 2019-07-23 |
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