CN205906858U - Anti -falling device for elevator - Google Patents
Anti -falling device for elevator Download PDFInfo
- Publication number
- CN205906858U CN205906858U CN201620536114.2U CN201620536114U CN205906858U CN 205906858 U CN205906858 U CN 205906858U CN 201620536114 U CN201620536114 U CN 201620536114U CN 205906858 U CN205906858 U CN 205906858U
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- China
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- flexible member
- guide rail
- elevator
- upper beam
- safety tongs
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Abstract
The utility model provides a novel safety tongs and provide anti -falling device for elevator. Last lower tumbler has been set up to novel safety tongs in present safety tongs structure for when avoiding the elevator normally to operate, the safety tongs maloperation. Anti -falling device for elevator includes the combination application of flexible member and novel safety tongs or the structure cooperation installation that the guide rail passes through flexible member. Through above -mentioned structure, the elevator security can promote, has reduced safety tongs action process to the impact force of car, guide rail, rail brackets, well wall, and the system is stopped back elevator car and directly is hung on putting the beams in place by flexible load component, has eliminated guide rail, rail brackets, well wall and has become flexible the hidden danger that drops, and possibility that greatly reduced elevator passenger was hurt has reduced installation cost of maintenance.
Description
Technical field
The utility model is related to a kind of safety device 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, be mainly used in preventing lift car out of control fall and
Disconnected rope falls.Existing device for preventing elevator from falling lifts link gear, overspeed preventer device, elevator car by safety tongs assembly, safety tongs
Railway carriage or compartment guide rail is constituted.When device for preventing elevator from falling action, lift car stop is existed by the safety tongs being mounted on lift car
On guide rail, so there are the following problems:
1st, because guide rail is rigid, therefore larger impulsive force can be produced during safety tongs action, elevator passenger may be caused
Injury；
2nd, because the direct stop of lift car is on guide rail, therefore guide rail, rail brackets, well enclosure is required to have higher carrying
Power；
3rd, during each safety tongs action, all impact can be produced to guide rail, rail brackets, well enclosure, be likely to result in guide rail and prop up
Frame loose or dislocation, leads to security performance to decline.Therefore require guide rail, rail brackets, well enclosure to have higher impact resistance；
4th, during each safety tongs action, all guide rail surface can be damaged it is often necessary to repair to guide rail surface；
5th, through grinding the guide rail of maintenance, brake force during safety tongs action can be reduced, cause braking distance to increase.
The presence of these problems, illustrates that existing device for preventing elevator from falling has certain potential safety hazard, also necessarily increases electricity
The installation and maintenance cost of ladder.
Utility model content
The utility model purpose is to overcome the deficiencies in the prior art, providing a kind of Novel safety tongs of clever structure,
It can make the voussoir in safety tongs not because rocking and misoperation, improves the security that elevator uses.
Another purpose of the present utility model is to provide device for preventing elevator from falling.
In order to achieve the above object, the utility model employs 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 sets
There is 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 positioned at same
One plane, two the second guide wheels are generally aligned in the same plane, and two planes parallel/overlap；
Between between the center line in gap between the center line in gap between two first guide wheels, two second guide wheels and two voussoirs
The center line three of gap overlaps；Or three center lines are generally aligned in the same plane, and the plane at three center line places and two the first guide wheel/two
The plane that individual second guide wheel is located 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 more than two sets the first anti-fall assemblies 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 flexibility
Component is the first flexible member；
Described first flexible member is long elements, and the two ends of described first flexible member are separately fixed in elevator hoistways
Upper beam and the guide rail parallel of underbeam and described first flexible member and lift car；
Described Novel safety tongs are fixedly mounted on outside car frame and are sandwiched on described first flexible member, the first guide wheel
And second guide wheel all contact with described first flexible member.
Preferably, also including the guide rail of lift car and for the flexible member supporting with described guide rail；Described flexibility
Component is the second flexible member；
Slide upper beam and underbeam in elevator hoistways respectively 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 institute
State underbeam；With described guide rail parallel and fixation is stacked on described guide rail described second flexible member.
Preferably, also including tightening regulator, the upper end of described flexible member is arranged on by tightening regulator
Described upper beam；
Described tightening regulator includes adjusting means and the buffer unit of the rate of tension for adjusting described flexible member
Or bolster；Described adjusting means is born to it with described upper beam in the described adjusting means face of pressure downward to upper beam applying
It is provided with buffer unit or bolster between the face of pressure applying.
Preferably, described buffer unit is spring buffer, or joined by spring buffer and hydraulic buffer
Close the buffer unit constituting.
Preferably, described flexible member is steel wire rope or steel band or other flexibility rope or belt.
A kind of device for preventing elevator from falling, including the upper beam in two sets or more than two sets the second anti-fall assemblies 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 in elevator hoistways respectively 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；
With described guide rail parallel and fixation is stacked on described guide rail described flexible member；
Described guide rail flexible load-carrying member with described flexible member composition；Described safety tongs is fixedly mounted on outside car frame
Side is simultaneously sandwiched in described guide rail.
Preferably, also including tightening regulator, the upper end of described flexible member is arranged on by tightening regulator
Described upper beam；
Described tightening regulator includes adjusting means and the buffer unit of the rate of tension for adjusting described flexible member
Or bolster；Described adjusting means is born to it with described upper beam in the described adjusting means face of pressure downward to upper beam applying
It is provided with buffer unit or bolster between the face of pressure applying.
Preferably, described buffer unit is spring buffer or is joined by spring buffer and hydraulic buffer
Close the buffer unit constituting.
Preferably, described flexible member is steel wire rope or steel band or other flexibility rope or belt.
Compared with prior art, the utility model has the advantages that
By said structure, elevator safety is lifted, and reduces safety tongs course of action to car, guide rail, guide rail
Support, the impulsive force of well enclosure, after stop, lift car is directly hung on upper beam by flexible load-carrying member, eliminate guide rail,
Rail brackets, the hidden danger of well enclosure loose or dislocation, substantially reduce the possibility that elevator passenger is hurt, and reduce installation and maintenance
This.
Brief description
Fig. 1 is the structural representation of the utility model embodiment 2；
Fig. 2 is the structural representation of Novel safety tongs described in the utility model；
Fig. 3 is the structural representation of tightening regulator described in the utility model；
Fig. 4 is the structural representation of embodiment 3 described in the utility model；
Fig. 5 is the structural representation of embodiment 4 described in the utility model.
In figure:
1 Novel safety tongs；11 calipers；12 voussoirs；13 upper blocks；14 lower tumblers；2 flexible members；
31 adjusting meanss；32 buffer units/bolster；4 safety tongs lifting link gears；5 limiter of speeds；6 upper beams；7—
Underbeam；8 lift cars；9 safety tongs；10 lead boots；101 guide rails；102 guide posts.
In conjunction with accompanying drawing, the utility model is described in further detail with specific embodiment.
Specific embodiment
Embodiment 1
Refering to shown in Fig. 2, a kind of Novel safety tongs 1 described in the utility model, it is slidably installed including caliper 11 and respectively
In two voussoirs 12 of caliper 11, the top of caliper 11 is provided with a pair relative upper block 13, and the bottom of caliper 11 is provided with a pair of phase
To lower tumbler 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 are put down
Row/overlap.Between the center line in gap between the center line in gap between two upper blocks 13, two lower tumblers 14 and two voussoirs 12
The center line three in gap overlaps；Gap between two voussoirs 12 is more than the gap between 13/ liang of lower tumbler of two upper blocks.As another
One embodiment, three center lines are generally aligned in the same plane, and the plane at three center line places and two upper blocks or two lower tumbler institutes
Plane vertical.
According to the demand using, a voussoir clamping face setting V-shaped groove of the voussoir 12 of Novel safety tongs 1 or half-circular cutouts
Groove, another voussoir clamping face arranges deep-slotted chip breaker；Voussoir clamping face may be configured as undaform；The material of voussoir clamping face can use non-
Metal material.
Embodiment 2
Refering to shown in Fig. 1 to Fig. 3, a kind of device for preventing elevator from falling, including in two set of first anti-fall assembly 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 a flexible member 2, the Novel safety tongs 1 in an 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 soft
Property component 2 and lift car 8 guide rail parallel.Novel safety tongs 1 are fixedly mounted on outside lift car envelope and are sandwiched in flexibility
On component 2, upper block 13 and lower tumbler 14 are all contacted with flexible member 2.Flexible member 2 is 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 soft for adjusting
The adjusting means 31 of the rate of tension of property component 2, adjusting means 31 applies the face of downward pressure and bearing of upper beam 6 to upper beam 6
It is provided with buffer unit/bolster 32 to it between the face of the pressure that adjusting means 31 applies.As one of which embodiment, adjust
Regulating device 31 includes the screw rod being fixedly connected with flexible member 2 and the adjusting nut with screw rod cooperation, and the corresponding screw rod of upper beam 6 is provided with
Installing hole, screw rod penetrating mounting holes, nut coordinates and is located above upper beam 6 with the threaded upper ends of screw rod, and bolster 32 is buffering
Pad, cushion pad is between the downside of nut and upper beam 6.Wherein, if adjusting means 31 applies downward pressure to upper beam 6
Bearing of face and upper beam 6 is provided that buffer unit between the face of the pressure that adjusting means 31 applies to it, and embodiment can be
Spring buffer；Or the buffer unit constituting with spring buffer and hydraulic buffer, such as when accumulating type buffering
When device is spring, spring housing forms buffer unit outside hydraulic buffer；Or spring buffer and energy-dissipating type phase buffer
Composition buffer unit placed side by side.
Safety tongs lifting link gear 4 is connected with the voussoir 12 of Novel safety tongs 1；Limiter of speed 5 and safety tongs lifting linkage
Mechanism 4 connects.
When described first flexible member is steel wire rope, a voussoir clamping face setting V-shaped of the voussoir 12 of Novel safety tongs 1
Groove or half-circular cutouts groove, another voussoir clamping face arranges deep-slotted chip breaker；When described first flexible member is steel band, voussoir clamping face
May be configured as undaform；The material of voussoir clamping face can use nonmetallic materials.
In order to improve stability and reliability during the anti-fall braking of lift car 8 further, device for preventing elevator from falling can set
There are more than two sets the second fall arrest assemblies.
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 above carries the voussoir 12 of Novel safety tongs 1, two voussoirs 12 near and clamp flexible member
2, the power suffered by flexible member 2 is conducted to adjusting means 31, and power is acted on buffer unit/bolster 32 by adjusting means 31
On, buffer unit/bolster 32 transfers force on upper beam 6 after cushioning effect, and final lift car 8 will be by stop soft
On property component 2.Now lift car 8 is directly hung on flexible member 2 by Novel safety tongs 1, and flexible member 2 connects
It is ensured that lift car 8 will not fall on upper beam 6.
When lift car 8 above carries, can be by stop status releasing, Novel safety tongs 1 automatically reset.
During the voussoir 12 of Novel safety tongs 1 above carries and clamps flexible member 2, flexible member 2 is by toward drop-down, buffering
Device/bolster 32 plays cushioning effect in this process, substantially reduces 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
It is not hit.The lift car 8 that guide rail is only used for when elevator normally runs guides.
The course of action of device for preventing elevator from falling and the action journey of the existing falling proof device of utilization guide rail stop car
Sequence is the same, and stop status releasing, safety tongs 1 reset routine are also the same.But the object of safety tongs clamping is different, action
Buffering course is different, and the support member of participation is also different.
The feature of embodiment 2:
1) elevator safety is lifted.Safety tongs does not use guide rail stop, and safety tongs course of action has buffering dress
Put/the cushioning effect of bolster, reduce the impulsive force to lift car 8, and after stop, lift car 8 is straight by flexible member 2
Connect hanging on upper beam 6, whole process eliminates guide rail, guide rail to guide rail, rail brackets, well enclosure all without producing impact
Support, the hidden danger of well enclosure loose or dislocation, greatly reduce the possibility that elevator passenger is hurt.
2) reliability of hoisting elevator car 8 stop.Because not limited by rail shapes, size and material, peace can be made
The shape of full pincers voussoir, the clamping face material of voussoir and flexible member 2 reach optimal matching, to ensure to produce suitable system
Stop power, improve stability and the reliability of stop elevator car 8.
3) reduce and manufacture installation cost.Because, during safety tongs action, whole process is to guide rail, rail brackets, well enclosure not
Impact can be produced, lift car 8 is directly hung on upper beam 6 by flexible member 2, the effect of guide rail is only left to lift car 8
Guiding, the structure stress of guide rail, rail brackets, well enclosure is required to substantially reduce, guide rail, rail brackets, the knot of well enclosure
Configuration formula, arrangement, installation site, material select all can flexibly change, or even guide rail can be hidden in well enclosure, Ying Ke great
Width reduces manufacture installation cost；
4) reduce maintenance cost.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 and can recover all component original states it is not necessary to repair any parts, should be greatly reduced
Maintenance cost.
5) expanded elevator design space.Device for preventing elevator from falling is independently of outside guide rail, and stop elevator car 8 is not
Need guide rail again, the design of device for preventing elevator from falling is no longer restricted by guide rail, rail brackets, well enclosure, cage guide, guide rail
Support, the design of well enclosure are also no longer restricted by safety tongs.Relieve the mutual system of lift car 8 guiding and safety tongs stop
After about, the design of parts in elevator hoistways all will have greater flexibility, significantly widen elevator design, particularly hoistway sets
The space of meter.
6) upper block 13, lower tumbler 14 are set in safety tongs it is ensured that elevator normal course of operation voussoir and flexible member 2 have
Constant gap, does not lead to come 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 to increase on the basis of embodiment 2
Following 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
Slide located at the upper beam 6 of elevator hoistways and underbeam 7 respectively, 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): so that the upper end of guide rail 101 is installed as a example, it is provided with mounting opening simultaneously in upper beam 6
Activity in mounting opening runs through and is provided with a guide post 102, and the lower end of guide post is fixedly connected with the upper end of guide rail 101.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 parallel with guide rail 101 and
It is stacked on guide rail 101, and interfix with guide rail 101.
The upper end of flexible member 2 is arranged on upper beam 6 by tightening regulator；Tightening regulator includes soft for adjusting
The adjusting means 31 of the rate of tension of property component 2.Adjusting means 31 applies the face of downward pressure and bearing of upper beam 6 to upper beam 6
It is provided with buffer unit/bolster 32 to it between the face of the pressure that adjusting means 31 applies.As one of which embodiment, adjust
Regulating device 31 includes the screw rod being fixedly connected with flexible member 2 and the adjusting nut with screw rod cooperation, and the corresponding screw rod of upper beam 6 is provided with
Installing hole, screw rod penetrating mounting holes, nut coordinates and is located above upper beam 6 with the threaded upper ends of screw rod, and bolster 32 is buffering
Pad, cushion pad is between the downside of nut and upper beam 6.Wherein, if adjusting means 31 applies downward pressure to upper beam 6
Bearing of face and upper beam 6 is provided that buffer unit between the face of the pressure that adjusting means 31 applies to it, and embodiment can be
Spring buffer；Or the buffer unit constituting with spring buffer and hydraulic buffer, such as when accumulating type buffering
When device is spring, spring housing forms buffer unit outside hydraulic buffer；Or spring buffer and energy-dissipating type phase buffer
Composition buffer unit placed side by side.
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 connection
The voussoir 12 of Novel safety tongs 1 is above carried by motivation structure 4, two voussoirs 12 near and clamp single flexible member 2, individually flexible
Power suffered by component 2 is conducted to adjusting means 31, and power is acted on buffer unit/bolster 32, buffering dress by adjusting means 31
Put/impulsive force is delivered on upper beam 6 after cushioning effect by bolster 32, final lift car 8 will be by stop single
On flexible member 2.Now lift car 8 is directly hung on single flexible member 2 by Novel safety tongs 1, and single
Flexible member 2 is connected on upper beam 6 it is ensured that lift car 8 will not fall.
When lift car 8 above carries, can be by stop status releasing, Novel safety tongs 1 automatically reset.
During the voussoir 12 of Novel safety tongs 1 above carries and clamps single flexible member 2, single flexible member 2
By toward drop-down, buffer unit/bolster 32 plays cushioning effect in this process, substantially reduces 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.The lift car 8 that guide rail 101 is only used for when elevator normally runs guides.
The course of action of device for preventing elevator from falling and the action journey of the existing falling proof device of utilization guide rail stop car
Sequence is the same, and stop status releasing, safety tongs 1 reset routine are also the same.But the object of safety tongs clamping is different, action
Buffering course is different, and the support member of participation is also different.
Novel safety tongs are sandwiched in single flexible member 2, and the boots 10 of leading of lift car then operate in realization on guide rail 101
The guiding of lift car.When lift car is braked, the voussoir clamping flexible member 2 of Novel safety tongs.
Guide rail 101 is to realize fixation by flexible member 2, and the linearity of guide rail is readily obtained guarantee, simplifies hoistway
Mounting 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 described in the utility model, including two set of second anti-fall assembly,
And the upper beam 6 in elevator hoistways and underbeam 7.Second anti-fall assembly is arranged in the both sides of lift car.
Second anti-fall assembly includes the guide rail 101 of a lift car, a flexible member 2 and a safety tongs 9.Guide rail 101
Two ends are slided located at the upper beam 6 of elevator hoistways and underbeam 7 respectively, and the feasible concrete mounting means of the one of which of guide rail 101 is such as
Under (the top and bottom mounting means of guide rail 101 is identical): so that the upper end of guide rail 101 is installed as a example, be provided with installation in upper beam 6 and open
Hole is simultaneously movably equipped with a guide post 102 in mounting opening, and the lower end of guide post 102 is fixedly connected with the upper end of guide rail 101.Soft
Property component 2 be long elements；The two ends of flexible member 2 are separately fixed at upper beam 6 and underbeam 7；Flexible member 2 is parallel with guide rail 101
And be stacked on guide rail 101, and interfix with guide rail 101.Guide rail 101 and flexible member 2 form flexible load-carrying member.Peace
Full pincers 9 are arranged on lift car and are sandwiched in guide rail 101.Flexible member 2 is steel wire rope or steel band or the enough flexibility of other intensity
Rope or belt.
The upper end of flexible member 2 is arranged on upper beam 6 by tightening regulator；Tightening regulator includes soft for adjusting
The adjusting means 31 of the rate of tension of property component 2.Adjusting means 31 applies the face of downward pressure and bearing of upper beam 6 to upper beam 6
It is provided with buffer unit/bolster 32 to it between the face of the pressure that adjusting means 31 applies.As one of which embodiment, adjust
Regulating device 31 includes the screw rod being fixedly connected with flexible member 2 and the adjusting nut with screw rod cooperation, and the corresponding screw rod of upper beam 6 is provided with
Installing hole, screw rod penetrating mounting holes, nut coordinates and is located above upper beam 6 with the threaded upper ends of screw rod, buffer unit/bolster
32 is cushion pad, and cushion pad is between the downside of nut and upper beam 6.Wherein, if adjusting means 31 applies downwards to upper beam 6
The face of pressure and bearing of upper beam 6 be provided that buffer unit, in fact between the face of the pressure that adjusting means 31 applies to it
Applying example can be spring buffer；Or the buffer unit constituting with spring buffer and hydraulic buffer；As when storage
When energy type buffer is spring, spring housing forms buffer unit outside hydraulic buffer；Or spring buffer and power consumption
Type phase buffer 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 lifts link gear 4 with safety tongs
Connect.
In order to improve stability and reliability during the anti-fall braking of lift car 8 further, device for preventing elevator from falling can set
There are more than two sets the second fall arrest assemblies.
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 connection
Motivation structure 4, safety tongs lifts link gear 4 and drives the voussoir 12 of safety tongs 9 to rise, and voussoir clamps guide rail 101, because of guide rail 101
Interfix with flexible member 2, so flexible member 2 conducts suffered power to adjusting means 31, adjusting means 31 is by power
Act on buffer unit/bolster 32, buffer unit/bolster 32 transfers force on upper beam 6 after cushioning effect,
Whole 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 peace
Entirely clamp 9 clamp rail 101 and hang on flexible load-carrying member, and the flexible member 2 in flexible load-carrying member is connected to upper beam 6
Above it is ensured that lift car will not fall.
When lift car above carries, can be by stop status releasing, safety tongs 9 automatically resets.In safety tongs 9 course of action,
By past drop-down, buffer unit/bolster 32 rises the flexible load-carrying member that guide rail 101 and flexible member 2 are formed in this process
Cushioning effect, substantially reduces 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,
Do not contact with well enclosure, and guide rail 101 is rigid, lift car guiding when elevator normally runs can be met and require.
The course of work of device for preventing elevator from falling with the operation program of the existing falling proof device using guide rail stop is
The same, 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
The object of safety tongs 9 clamping has buffer unit, and safety tongs 9 action buffering course is different.
The advantage of embodiment 4:
1) hoisting elevator security.During safety tongs 9 braking procedure, there is the slow of flexible member 2 and buffer unit/bolster 32
Punching acts on, and reduces the impulsive force to lift car, and after stop, lift car is directly hung on upper beam 6 by flexible member 2,
Do not need the support of rail brackets, well enclosure in structure, eliminate rail brackets, the hidden danger of well enclosure loose or dislocation, reduce
The possibility that elevator passenger is hurt.
2) reduce and manufacture installation cost.Guide rail 101 is installed does not need rail brackets, and the structure stress of elevator shaft wall requires
Substantially 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 component materials, should be greatly reduced manufacture installation cost, especially high rise elevator hoistway is installed, especially
For obvious.
3) reduce maintenance cost.Though being still likely to result in guide rail 101 surface damage during safety tongs 9 action, will not make
Become flexible member 2 to damage, even if guide rail surface is damaged also can mitigate many, therefore also can reduce maintenance cost.
Upper beam 6 in elevator hoistways described in the utility model refers to the original structural beams in top of elevator hoistways,
Also can refer on elevator hoistways top to coordinate the upper beam of device for preventing elevator from falling setting.Elevator described in the utility model
Underbeam 7 in road refers in elevator hoistways bottom to coordinate the underbeam of device for preventing elevator from falling setting.
In the utility model, when the specific embodiment of flexible member is steel wire rope, the determination mode of wirerope diameter is as follows:
According to safety tongs brake force with load relation, safety tongs brake force mean value:
F=16 (p+q)
P is car and annex gross mass, and q is nominal load.
If setting 2 sets of anti-fall assemblies, often cover 2 steel wire ropes, flexible member totally 4 steel wire ropes.
If taking load larger elevator as a example, taking p=3000 (kg), q=5000 (kg)
Then there is f=16 (3000+5000)=128000 (n)
Take impact safety coefficient 12, steel wire rope (1) is chosen as total load using 12*128000=1536000 (n).
: every steel wire rope loads 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 between 0.2 1.0g
Maximum 1.0g, now has:
F=1.0g (p+q)=9.8 (3000+5000)=78400 (n)
Take impact safety coefficient 12, steel wire rope (1) is chosen as total load using 12*78400=940800 (n).
: every steel wire rope loads 235200 (n).The steel wire rope of optional more than diameter 21.5mm.
The utility model is not limited to above-mentioned embodiment, if do not taken off to various changes of the present utility model or modification
From spirit and scope of the present utility model, if these are changed and modification belongs to claim of the present utility model and equivalent technologies
Within the scope of, then the utility model is also intended to comprise these changes and changes.
Claims (9)
1. a kind of device for preventing elevator from falling is it is characterised in that include two sets or more than two sets the first anti-fall assemblies and elevator hoistways
Interior upper beam and underbeam；
Described first anti-fall assembly includes a flexible member and Novel safety tongs；Described flexible member is the first flexible member；
Described first flexible member is long elements, and the two ends of described first flexible member are separately fixed at the upper beam in elevator hoistways
With underbeam and described first flexible member and lift car guide rail parallel；
Described Novel safety tongs are fixedly mounted on outside car frame and are sandwiched on described first flexible member, the first guide wheel and
Two guide wheels are all contacted with described first flexible member；
Described Novel safety tongs, including caliper and two voussoirs that are slidably mounted on caliper respectively are it is characterised in that described caliper
Top is provided with a pair the first relative guide wheel, and the bottom of described caliper is provided with a pair the second relative guide wheel；Two the first guide wheels
Be generally aligned in the same plane, two the second guide wheels are generally aligned in the same plane, and two planes parallel/overlap；
Gap between the center line in gap between the center line in gap between two first guide wheels, two second guide wheels and two voussoirs
Center line three overlaps；Or three center lines are generally aligned in the same plane, and the plane at three center line places and two the first guide wheels or two
The plane that second guide wheel is located is vertical；
Gap between two voussoirs is more than the gap between two first guide wheel/two second guide wheels.
2. device for preventing elevator from falling according to claim 1 is it is characterised in that also including the guide rail of lift car and being used for
The flexible member supporting with described guide rail；Described flexible member is the second flexible member；
Slide upper beam and underbeam in elevator hoistways respectively at the two ends of described guide rail；
Described second flexible member is long elements；The two ends of described second flexible member be separately fixed at described upper beam and described under
Beam；With described guide rail parallel and fixation is stacked on described guide rail described second flexible member.
3. device for preventing elevator from falling according to claim 1 and 2 is it is characterised in that also including tightening regulator, described
The upper end of flexible member is arranged on described upper beam by tightening regulator；
Described tightening regulator includes adjusting means and the buffer unit or slow of the rate of tension for adjusting described flexible member
Stamping；Described adjusting means is applied the downward face of pressure to upper beam and with the described adjusting means of bearing of described upper beam, it is applied
The face of pressure between be provided with buffer unit or bolster.
4. device for preventing elevator from falling according to claim 3 is it is characterised in that described buffer unit buffers for accumulating type
Device, or the buffer unit constituting with spring buffer and hydraulic buffer.
5. device for preventing elevator from falling according to claim 1 and 2 it is characterised in that described flexible member be steel wire rope or
Steel band.
6. a kind of device for preventing elevator from falling is it is characterised in that include two sets or more than two sets the second anti-fall assemblies and elevator hoistways
Interior 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 in elevator hoistways respectively 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
With described guide rail parallel and fixation is stacked on described guide rail flexible member；
Described guide rail flexible load-carrying member with described flexible member composition；Described safety tongs is fixedly mounted on outside car frame simultaneously
It is sandwiched in described guide rail.
7. device for preventing elevator from falling according to claim 6 is it is characterised in that also including tightening regulator, described soft
The upper end of property component is arranged on described upper beam by tightening regulator；
Described tightening regulator includes adjusting means and the buffer unit or slow of the rate of tension for adjusting described flexible member
Stamping；Described adjusting means is applied the downward face of pressure to upper beam and with the described adjusting means of bearing of described upper beam, it is applied
The face of pressure between be provided with buffer unit or bolster.
8. device for preventing elevator from falling according to claim 7 is it is characterised in that described buffer unit buffers for accumulating type
Device or the buffer unit constituting with spring buffer and hydraulic buffer.
9. device for preventing elevator from falling according to claim 6 is it is characterised in that described flexible member is steel wire rope or steel
Band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536114.2U CN205906858U (en) | 2016-06-01 | 2016-06-01 | Anti -falling device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620536114.2U CN205906858U (en) | 2016-06-01 | 2016-06-01 | Anti -falling device for elevator |
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| Publication Number | Publication Date |
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| CN205906858U true CN205906858U (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620536114.2U Expired - Fee Related CN205906858U (en) | 2016-06-01 | 2016-06-01 | Anti -falling device for elevator |
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| CN (1) | CN205906858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858399A (en) * | 2016-06-01 | 2016-08-17 | 黄韩华 | Novel safety gear and elevator falling-preventing device |
| CN107486746A (en) * | 2017-09-28 | 2017-12-19 | 山东斯特博工业科技有限公司 | A kind of anti-fall device |
-
2016
- 2016-06-01 CN CN201620536114.2U patent/CN205906858U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858399A (en) * | 2016-06-01 | 2016-08-17 | 黄韩华 | Novel safety gear and elevator falling-preventing device |
| CN105858399B (en) * | 2016-06-01 | 2019-07-23 | 黄韩华 | Safety tongs and device for preventing elevator from falling |
| CN107486746A (en) * | 2017-09-28 | 2017-12-19 | 山东斯特博工业科技有限公司 | A kind of anti-fall device |
| CN107486746B (en) * | 2017-09-28 | 2023-09-05 | 青岛汇金通电力设备股份有限公司 | Anti-falling device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20180601 |