CN106904504A - The anti-shear protective equipment of elevator - Google Patents
The anti-shear protective equipment of elevator Download PDFInfo
- Publication number
- CN106904504A CN106904504A CN201710290024.9A CN201710290024A CN106904504A CN 106904504 A CN106904504 A CN 106904504A CN 201710290024 A CN201710290024 A CN 201710290024A CN 106904504 A CN106904504 A CN 106904504A
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- CN
- China
- Prior art keywords
- switch
- elevator
- magnetic
- electromagnet
- floor
- Prior art date
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/16—Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
-
- 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
- B66B5/26—Positively-acting devices, e.g. latches, knives
Abstract
The present invention provides a kind of anti-shear protective equipment of elevator, including：Installed in the through hole block of elevator metope（2）, electric expansion unit on car, magnetic switch unit, extruding of meeting connect switch element, can not automatically reset electromagnetic switch（10）, conversion magnetic direction connect normally opened magnetic switch unit, d electromagnet（111）With the motor of traction machine（M1）Main circuit on common for setting interlock positive and negative converter（12）..., elevator and master control using the anti-shear protective equipment of this case elevator.The elevator parking of the anti-shear protective equipment of this elevator is installed when stop passenger passes in and out, elevator passenger can not cause shearing accident in pairs；When elevator is travelled up and down in hoistway, elevator will not be opened accidentally elevator door, and passenger cannot arbitrarily walk out car；There is elevator shearing accident so as to effectively prevent links.The elevator shearing accident that threaten passenger survival safety is no longer produced from this.
Description
Technical field
The present invention relates to elevator technology field, more particularly to a kind of anti-shear protective equipment of elevator.
Background technology
The huge increasing built with high building, elevator has become the vehicles that must be taken in people's daily life；Mesh
Preceding elevator safety accident happens occasionally, and is all especially final result with passenger's injures and deaths after generation elevator shearing accident, and people take
It is likely to run into generation shearing accident during elevator；The above-mentioned elevator safety accident moment threatens the life security of passenger, is people
The urgent major issue for wishing to solve.
The content of the invention
Shearing accident may occur when taking elevator in order to prevent people, injures and deaths are caused to passenger；The present invention provides a kind of
The direct protection equipment of anti-elevator shearing on one's own initiative, can effectively prevent the generation of above-mentioned accident, and the moment is safe and reliable to be protect
The life security of passenger.
A kind of scheme of the anti-shear protective equipment of elevator that the present invention is provided includes the content announced below.
Through hole block 2 is installed on the elevator metope of each floor；Expansion link 63 for electrical retractor is inserted.
Electric expansion unit on car, the electric expansion unit is symmetrically mounted on and one is at least on car
It is right；The electric expansion unit it is main by：The base 61, electrical retractor of electrical retractor 6, electrical retractor is stretched
Contracting bar 63, a extrusion elastics switch 64, b extrusion elastics switch 65 are constituted；
A extrusion elastics switch 64 and b extrusion elastics switch 65 are normally closed switch, the pressure of its touch point to disconnect, upspring for
Closure；
The a extrusion elastics switch 64 of all electric expansion units on car, is arranged in series in switching door motor
On the major loop of M2；Switch door motor M2 is just directly opened and controlling for closing by a extrusion elastics switch 64；
The b extrusion elastics switch 65 of all electric expansion units on car, is arranged in series in the electricity of traction machine
On the control circuit of c normally opened relays M1-1 set on wherein one main electrical scheme of machine M1；B extrusion elastics switch 65
Open and control c normally opened relays M1-1 to work with conjunction, the motor M1 work of traction machine just directly receives b extrusion elastics switch 65
Control；
Control the motor M1's of traction machine using the b extrusion elastics switch 65 of the above-mentioned electric expansion unit on car
Scheme, the b extrusion elastics switch 65 of the electric expansion unit being equally also provided with car is for controlling normally closed magnetic control
Dynamic device.
The electrical retractor 6 is characterised by：
Electric expansion unit starting works, and stretches out the expansion link 63 of electrical retractor and is inserted into through hole block 2 or makes
The expansion link 63 of electrical retractor is retracted and exits through hole block 2；
After the expansion link 63 of electrical retractor is fully extended, the decompression of touch point 642 for just switching a extrusion elastics is upspring and is closed
Close a extrusion elastics switch 64；After the expansion link 63 of electrical retractor is fully retracted, just make pressing for b extrusion elastics switch
652 decompressions of point are upspring and close b extrusion elastics switch 65；
When the expansion link 63 of electrical retractor stretches out the touch point 652 of pressure b extrusion elastic switches, b extruding is just disconnected
Elastic sheet switch 65；When the expansion link 63 of electrical retractor retracts the touch point 642 for depressing a extrusion elastics switch, just disconnect
A extrusion elastics switch 64.
Magnetic switch unit, the magnetic switch unit it is main by：On the guide rail 7 of each floor set a electromagnet 81,
In stop, the normally opened magnetic switch 82 set in the car roof 5 relative with a electromagnet 81 is constituted car regular calling；
The normally opened magnetic switch 82 is arranged on the major loop of motor M3 of the electrical retractor of electrical retractor 6, a electricity
Magnet 81 is powered and disconnection and the closure of normally opened magnetic switch 82 is directly control with magnetic and power-off demagnetization.
The magnetic switch unit is characterised by：Be powered on guide rail 7 when the normally opened magnetic switch 82 on car is mutually run into
When a electromagnet 81, normally opened magnetic switch 82 by adhesive, will just can turn on the motor M3 circuits of electrical retractor.
The switch element that extruding of meeting is connected, switch element that the extruding of meeting is connected it is main by：Each floor is led
The flexible top plate unit set on rail 7, the extruding switch element composition being arranged on car.
The flexible top plate unit it is main by：The support frame 910 of the flexible top plate unit being arranged on guide rail 7, top of stretching
The pull bar 912 that the b electromagnet 91, right-hand member that the left end of support frame 910 of Slab element is set is set；The left end of pull bar 912 is set
It is inclined-plane to have the right-hand member setting thereon of b permanent magnets 911, the compression spring 913 being enclosed within pull bar 912, pull bar 912 and have two ends
The quill 92 of strip top board 9121, pull bar constitute；
Repulsion is produced to b permanent magnets 911 when the b electromagnet 91 is powered, b permanent magnets 911 are promoted to the right, cause the edge of top board 9121
The chute opening 921 for sleeve moves right；After the power-off of b electromagnet 91 loses magnetic force, b permanent magnets 911 are subject to compression spring
913 tension force is moved to the left, and causes top board 9121 to be retracted to the left.
The c extrusion elastics switch 93 for extruding switch element is normal open switch；When car is moved up and down, the c on car is squeezed
After the extrusion head 931 of pressure elastic sheet switch can be subject to the flexible top plate unit energization work on guide rail 7, the top board that promotion comes
9121 formed extruding and connect c extrusion elastics switch 93；
The c extrusion elastics switch 93 is arranged on the major loop of motor M3 of electrical retractor, and c extrusion elastics switch 93 is received
Crimping is logical and decompression disconnects the motor M3 work that just directly control electrical retractor.
The normally opened magnetic switch 82 of above-mentioned magnetic switch unit and the c extrusion elastics switch 93 of extruding switch element are in parallel
It is arranged in the major loop of motor M3 of electrical retractor.
The a electromagnet 81 of the magnetic switch unit and the b electromagnet 91 of flexible top plate unit are by can not automatic reset electro
Magnetic switch 10 is controlled.
The electromagnetic switch 10 that can not automatically reset is characterised by：Attract c movable when c1 electromagnet 101 is powered band magnetic
Permanent magnet 102, is drawn through the movable bodies of permanent magnet 102 of the c for coming and connects two relative elastic springs 104 in interval, so that closed magnetic
Control a electromagnet 81 of switch element and the major loop of the b electromagnet 91 of flexible top plate unit；When c2 electromagnet 103 is powered with magnetic
When attract the movable permanent magnets 102 of c, the movable permanent magnets 102 of c be drawn through come after just disconnect magnetic switch unit a electromagnet 81 and stretch
The major loop of the b electromagnet 91 of contracting top plate unit.
The c1 electromagnet 101 is controlled by a control devices 145 set in floor call box 14.
The a control devices 145 are characterised by：
The choosing layer key 132 of operation panel in the up call key 142 of floor call box, the down call key 143, railway carriage or compartment of floor call box
Any one key, just association starts a control devices 145 to perform operation, goes to up to elimination action that just association stops a control dresses
Put 145；
The a control devices 145 start work, the major loop of c1 electromagnet 101 is closed the generation magnetic force that is powered.
Series winding is provided with a normally closed relays 113 and b normally closed relays 114, becomes on the major loop of the c2 electromagnet 103
Change the normally opened magnetic switch 110 of magnetic direction connection.
The a normally closed relays 113 and b normally closed relays 114 are by the b control devices 146 that are set in floor call box 14
Control.
The b control devices 146 are characterised by：The up call key 142 of floor call box is pressed, b control devices 146
It is just corresponding to start a normally closed relays 113；The down call key 143 of floor call box is pressed, the just corresponding startup of b control devices 146
B normally closed relays 114；The uplink and downlink call key of floor call box go to up to elimination act when, just association stop b control dress
Put the 146 a normally closed relays 113 or b normally closed relays 114 for being correspondingly arranged control.
Conversion magnetic direction connect normally opened magnetic switch unit, mainly by：It is arranged on the by-level of each floor door 3
Normally opened magnetic switch 110, the upper and lower stripe board being arranged on car that conversion magnetic direction on well metope on line is connected
A 112 row d electromagnet 111 is constituted.
The normally opened magnetic switch 110 that the conversion magnetic direction is connected has thereon：Upper left, upper right, lower-left, bottom right four pairs
Magnetic control contactor.
It is normally opened that conversion magnetic direction on the well metope being arranged on the by-level line of each floor door 3 is connected
The circuit arrangement of magnetic switch 110 is characterised by：
By taking the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 152 of the second floor door is connected as an example：
The upper left magnetic control of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 152 of the second floor door is connected
The lower-left of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 153 of contactor and third story layer door is connected
Magnetic control contactor is concatenated into a circuit；
The bottom right magnetic control of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 152 of the second floor door is connected
The upper right of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 151 of contactor and the first floor door is connected
Magnetic control contactor is concatenated into a circuit；
The two lines road of above-mentioned composition is arranged in parallel road into a line and is opened as the electromagnetism that can not automatically reset belonging to the second floor
A part in the major loop of the c2 electromagnet 103 for closing 10；
The circuit plan of establishment more than, by that analogy, is applied to the normally opened magnetic control that the conversion magnetic direction of whole elevator is connected
Switch 110.
The normally opened magnetic switch unit that the conversion magnetic direction is connected is characterised by：
When car is moved up and down, the d electromagnet 111 of energization can connect the conversion magnetic direction being arranged on well metope
Normally opened magnetic switch 110 be operated；
One row d electromagnet 111 of the upper and lower stripe board 112 on car is in a kind of magnetic direction, and car moves up second
Building, a row d electromagnet 111 of upper and lower stripe board 112 is by the floor of by-level line 151 and second door of the first floor door
On by-level line 152 conversion magnetic direction connect normally opened magnetic switch 110 when, now can only the floor of adhesive first door
The normally opened magnetic switch 110 that by-level line 151 is connected with the conversion magnetic direction on the by-level line 152 of the second floor door
Upper left, lower-left two to magnetic control contactor, the c2 electromagnetism of the electromagnetic switch 10 that can not automatically reset installed in the first floor can be made
The major loop closure of iron 103；
The magnetic direction of one row d electromagnet 111 of the upper and lower stripe board 112 on conversion car, makes d electromagnet 111 be in another kind
After magnetic direction, car is moved down first building, and a row d electromagnet 111 of upper and lower stripe board 112 is by the second floor door
The normally opened magnetic switch 110 that by-level line 152 is connected with the conversion magnetic direction on the by-level line 151 of the first floor door
When, now can only the floor of adhesive second door the floor of by-level line 152 and first door by-level line 151 on conversion magnetic
To magnetic control contactor, can make to install in the second floor can not for the upper right of normally opened magnetic switch 110 that field direction is connected, bottom right two
The major loop closure of the c2 electromagnet 103 of the electromagnetic switch that automatically resets 10.
It is common on the main electrical scheme of the motor M1 of the d electromagnet 111 and traction machine that a positive and negative converter 12 of gearing is set；
Described to interlock positive and negative converter 12 by elevator master control, the operation demand of the anti-shear protective equipment according to this case elevator is corresponding
Set and control.
The positive and negative converter 12 of gearing is characterised by：E electromagnet 123 is powered and produces magnetic force, and e permanent magnets are attracted to the right
122, just pull e permanent magnets 122 to block the contactor KM groups on the main electrical scheme of motor M1 and the d electromagnet 111 for having traction machine thereon
Insulated tension pole 121, reach conversion traction machine motor M1 main electrical scheme wiring order, while also converted d electromagnet 111
Main electrical scheme wiring order, so as to reach the motor M1 of rotating traction machine simultaneously and change the magnetic direction of d electromagnet 111
Purpose.
Setting using the elevator of the anti-shear protective equipment of elevator described in this case includes：
During door-opened elevator, first start the anti-shear protective equipment of elevator and be operated, make the expansion link 63 of electrical retractor complete
After stretching out in the through hole block 2 for being inserted into and being installed on elevator metope, restart door opening/closing apparatus and opened the door；
Before elevator is moved up and down, first start elevator switch door gear and shut up the door carefully, restart the anti-shear protective equipment of elevator and enter
Row work, after the expansion link 63 of electrical retractor is fully retracted the through hole block 2 for exiting and being installed on elevator metope, then
Elevator just carries out upper and lower travel operation.
Elevator and master control of this case also using the anti-shear protective equipment of the elevator.
The beneficial effect of the anti-shear protective equipment of elevator that the present invention is provided：
It is an advantage of the invention that interrelated during the anti-shear protective equipment operation of elevator, limitation, orderly function mutually；Elevator parking
When stop passenger passes in and out, elevator passenger can not cause shearing accident in pairs；When elevator is moved up and down in hoistway, elevator is not
Elevator door can be opened accidentally, passenger cannot arbitrarily walk out car；There is elevator shearing thing so as to effectively prevent links
Therefore；The present invention possesses safe and reliable, simple structure, powerful, convenient implementation；
There is the invention of this case, when people take the elevator for implementing the anti-shear protective equipment of this elevator, elevator will not be run into
The generation of shearing accident, the life security of passenger obtains sound assurance；Threaten passenger survival safety elevator shear accident from
This is no longer produced.
Brief description of the drawings
Fig. 1 and Fig. 2 are the state diagrams of door-opened elevator rear defence shear protective equipment.
Fig. 3 and Fig. 4 are that elevator is closed the door the state diagram of rear defence shear protective equipment.
Fig. 5 is the state diagram of the electric expansion unit above elevator cab door.
Fig. 6 is enlarged drawing at the A of Fig. 1.
Fig. 7 is enlarged drawing at the B of Fig. 1.
Fig. 8 is enlarged drawing at the C of Fig. 2.
Fig. 9 is enlarged drawing at the D of Fig. 3.
Figure 10 is enlarged drawing at the E of Fig. 4.
Figure 11 is enlarged drawing at the F of Fig. 5.
Figure 12 is the schematic diagram of operation box panel in cage.
Figure 13 is the schematic diagram of elevator floor stops calling box panel.
Figure 14 is the essential electrical control principle schematic diagram of anti-shear protective equipment.
In figure：
At the A of A, Fig. 1, at the B of B, Fig. 1, at the C of C, Fig. 2, at the D of D, Fig. 3, at the E of E, Fig. 4, at the F of F, Fig. 5,1a, electricity
Stair shaft metope a, 1b, elevator metope b, 1c, elevator metope c, 2, through hole block, 21, through hole block fixed bolt,
3rd, floor door, 4, car door, 5, car roof, 6, electrical retractor, 61, the base of electrical retractor, 62, flexible
Unit fixed bolt, 63, the expansion link of electrical retractor, 64, a extrusion elastics switch, 641, a extrusion elastics switch
Electric wire, 642, a extrusion elastics switch touch point, 65, b extrusion elastics switch, 651, b extrusion elastics switch electric wire,
652nd, the touch point of b extrusion elastics switch, 7, guide rail, 71, the support frame of guide rail, 72, guide rail fixed bolt, 81, a electromagnetism
Iron, the support frame of 81a, a electromagnet, 82, normally opened magnetic switch, 82a, the support frame of normally opened magnetic switch, 91, b electromagnetism
Iron, 910, the support frame of flexible top plate unit, 911, b permanent magnets, 912, pull bar, 913, compression spring, 9121, top
Plate, 92, the quill of pull bar, 921, the chute opening of sleeve, 93, c extrusion elastics switch, 931, c extrusion elastics
The extrusion head of switch, 932, the support frame of c extrusion elastics switch, 10, can not automatically reset electromagnetic switch, 101, c1 electromagnetism
Iron, 102, the movable permanent magnets of c, 103, c2 electromagnet, 104, elastic spring, 110, the normally opened magnetic connected of conversion magnetic direction
Control switch, the support of the normally opened magnetic switch that 11a, conversion magnetic direction are connected, 01, leaf spring, 011, leaf spring stop point, 02,
Armature, 111, d electromagnet, 112, stripe board, 113, a normally closed relays, 114, b normally closed relays, 12, interlock it is positive and negative
Converter, KM, contactor, 121, insulated tension pole, 122, e permanent magnets, 123, e electromagnet, 124, back-moving spring,
13rd, operation panel in railway carriage or compartment, 131, operation box panel in railway carriage or compartment, 132, in railway carriage or compartment operation panel choosing layer key, 133, in railway carriage or compartment operation panel electricity
Cable, 14, floor call box, 141, floor call box panel, 142, the up call key of floor call box, 143, stop
The down call key of hall buttons, 144, the cable of floor call box, 145, a control devices, 146, b control devices, M1,
The motor of traction machine, M1-1, c normally opened relay, M2, switch door motor, M3, the motor of electrical retractor, 151, the
One floor door by-level line, the 152, second floor door by-level line, 153, third story layer door by-level line.
Specific embodiment
The accompanying drawing that this case is made, is the intuitive for accompanying drawing, makes one to should be readily appreciated that the anti-shear protective equipment of this case elevator
Principle；Its perfection, the final form of all parts are not represented.
The anti-shear protective equipment of this case elevator is an automation single unit system, interrelated during operating, mutually limitation；Knot
The anti-shear protective equipment principle schematic diagram of elevator shown in this case is closed, with reference to herein, is progressively understood, this case elevator can be run away with
The function of anti-shear protective equipment all parts, all parts how to cooperate operation, operation produce inevitable outcome；Therefore
No longer describe the subsequent operation for influenceing other all associated members to produce when each part runs in detail one by one herein.
In Fig. 1 to Figure 13, the circuit connection of the electric component of the anti-shear protective equipment of this case elevator is not shown.
Shown in Fig. 1 to Fig. 4, the through hole block 2 installed on the elevator metope of each floor；For electrical retractor
Expansion link 63 is inserted.
Shown in Fig. 1 to Fig. 4, Fig. 5, Fig. 7, Fig. 9, Figure 11, Figure 14, electric expansion unit is preferably mounted on car, described
Electric expansion unit is symmetrically mounted on car and is at least a pair；The electric expansion unit it is main by：Electrical retractor 6,
The expansion link 63 of the base 61, electrical retractor of electrical retractor, a extrusion elastics switch 64, b extrusion elastics switch 65 structures
Into；
A extrusion elastics switch 64 and b extrusion elastics switch 65 are normally closed switch, the pressure of its touch point to disconnect, upspring for
Closure；
The a extrusion elastics switch 64 of all electric expansion units on car, is arranged in series in switching door motor
On the major loop of M2；Switch door motor M2 is just directly opened and controlling for closing by a extrusion elastics switch 64；
The b extrusion elastics switch 65 of all electric expansion units on car, is arranged in series in the electricity of traction machine
On the control circuit of c normally opened relays M1-1 set on wherein one main electrical scheme of machine M1；B extrusion elastics switch 65
Open and control c normally opened relays M1-1 to work with conjunction, the motor M1 work of traction machine just directly receives b extrusion elastics switch 65
Control；
Control the motor M1's of traction machine using the b extrusion elastics switch 65 of the above-mentioned electric expansion unit on car
Scheme, the b extrusion elastics switch 65 of the electric expansion unit being equally also provided with car is for controlling normally closed magnetic control
Dynamic device（It is not shown）.
The electrical retractor 6 is characterised by：
Electric expansion unit starting works, and stretches out the expansion link 63 of electrical retractor and is inserted into through hole block 2 or makes
The expansion link 63 of electrical retractor is retracted and exits through hole block 2；
After the expansion link 63 of electrical retractor is fully extended, the decompression of touch point 642 for just switching a extrusion elastics is upspring and is closed
Close a extrusion elastics switch 64；After the expansion link 63 of electrical retractor is fully retracted, just make pressing for b extrusion elastics switch
652 decompressions of point are upspring and close b extrusion elastics switch 65；
When the expansion link 63 of electrical retractor stretches out the touch point 652 of pressure b extrusion elastic switches, b extruding is just disconnected
Elastic sheet switch 65；When the expansion link 63 of electrical retractor retracts the touch point 642 for depressing a extrusion elastics switch, just disconnect
A extrusion elastics switch 64.
Shown in Fig. 1, Fig. 3, Fig. 6, Figure 14, magnetic switch unit, mainly by：It is preferably provided on the guide rail 7 of each floor
A electromagnet 81, car regular calling in stop, in the car roof 5 relative with a electromagnet 81 set normally opened magnetic switch
82 are constituted；
The normally opened magnetic switch 82 is arranged on the major loop of motor M3 of the electrical retractor of electrical retractor 6, a electricity
Magnet 81 is powered and disconnection and the closure of normally opened magnetic switch 82 is directly control with magnetic and power-off demagnetization.
The magnetic switch unit is characterised by：Be powered on guide rail 7 when the normally opened magnetic switch 82 on car is mutually run into
When a electromagnet 81, normally opened magnetic switch 82 by adhesive, will just can turn on the motor M3 circuits of electrical retractor.
Shown in Fig. 2, Fig. 4, Fig. 8, Figure 10, Figure 14, meet extruding connect switch element, mainly by：It is preferably provided at every
Flexible top plate unit on the guide rail 7 of individual floor, the extruding switch element being preferably provided in car roof 5 composition.
The flexible top plate unit it is main by：The support frame 910 of the flexible top plate unit being arranged on guide rail 7, top of stretching
The pull bar 912 that the b electromagnet 91, right-hand member that the left end of support frame 910 of Slab element is set is set；The left end of pull bar 912 is set
It is inclined-plane to have the right-hand member setting thereon of b permanent magnets 911, the compression spring 913 being enclosed within pull bar 912, pull bar 912 and have two ends
The quill 92 of strip top board 9121, pull bar constitute；
Repulsion is produced to b permanent magnets 911 when the b electromagnet 91 is powered, b permanent magnets 911 are promoted to the right, cause the edge of top board 9121
The chute opening 921 for sleeve moves right；After the power-off of b electromagnet 91 loses magnetic force, b permanent magnets 911 are subject to compression spring
913 tension force is moved to the left, and causes top board 9121 to be retracted to the left.
The c extrusion elastics switch 93 for extruding switch element is normal open switch；When car is moved up and down, the c on car is squeezed
After the extrusion head 931 of pressure elastic sheet switch can be subject to the flexible top plate unit energization work on guide rail 7, the top board that promotion comes
9121 formed extruding and connect c extrusion elastics switch 93；
The c extrusion elastics switch 93 is arranged on the major loop of motor M3 of electrical retractor, and c extrusion elastics switch 93 is received
Crimping is logical and decompression disconnects the motor M3 work that just directly control electrical retractor.
As shown in figure 14, the c extrusion elastics of the normally opened magnetic switch 82 of above-mentioned magnetic switch unit and extruding switch element
Switch 93 is arranged in parallel in the major loop of the motor M3 of electrical retractor.
Actually implement in, can select as needed magnetic switch unit and meet extrude connect switch element its
Middle one kind.
Shown in Figure 14, a electromagnet 81 of the magnetic switch unit is with the b electromagnet 91 of flexible top plate unit by can not oneself
Dynamic reset electromagnetic switch 10 is controlled；
The electromagnetic switch 10 that can not automatically reset is preferably provided in floor call box 14, is easy to safeguard.
As shown in figure 14, the electromagnetic switch 10 that can not automatically reset is characterised by：When c1 electromagnet 101 is powered with magnetic
When attract the movable permanent magnets 102 of c, be drawn through the movable bodies of permanent magnet 102 of c for coming and connect two relative elastic springs in interval
104, so as to close the major loop of a electromagnet 81 of magnetic control switch element and the b electromagnet 91 of flexible top plate unit；When c2 electromagnetism
The movable permanent magnets 102 of c, the movable permanent magnets 102 of c is attracted to be drawn through and carry out rear just disconnection magnetic switch unit when iron 103 is powered with magnetic
The major loop of a electromagnet 81 and the b electromagnet 91 of flexible top plate unit.
Shown in Figure 12, Figure 13, Figure 14, the c1 electromagnet 101 by floor call box 14 set a control devices 145
Control.
The a control devices 145 are characterised by：
The choosing layer key 132 of operation panel in the up call key 142 of floor call box, the down call key 143, railway carriage or compartment of floor call box
Any one key, just association starts a control devices 145 to perform operation, goes to up to elimination action that just association stops a control dresses
Put 145；
The a control devices 145 start work, the major loop of c1 electromagnet 101 is closed the generation magnetic force that is powered.
Shown in Figure 14, on the major loop of the c2 electromagnet 103 series winding be provided with a normally closed relays 113 and b it is normally closed after
The normally opened magnetic switch 110 that electrical equipment 114, conversion magnetic direction are connected.
Shown in Figure 14, a normally closed relays 113 and b normally closed relays 114 are controlled by the b set in floor call box 14
Device processed 146 is controlled.
Shown in Figure 12, Figure 13, Figure 14, the b control devices 146 are characterised by：The up call key of floor call box
142 press, and b control devices 146 are just corresponding to start a normally closed relays 113；The down call key 143 of floor call box is pressed, b
Control device 146 is just corresponding to start b normally closed relays 114；The uplink and downlink call key of floor call box goes to be acted up to elimination
When, just association stops a normally closed relays 113 or b normally closed relays 114 that b control devices 146 are correspondingly arranged control.
Shown in Fig. 1 to Fig. 4, Figure 14, conversion magnetic direction connect normally opened magnetic switch unit, mainly by：It is preferably provided with
Normally opened magnetic switch 110, setting that conversion magnetic direction on well metope on the by-level line of each floor door 3 is connected
One row d electromagnet 111 of the upper and lower stripe board 112 on car is constituted.
As shown in figure 14, the normally opened magnetic switch 110 that the conversion magnetic direction is connected has thereon：Upper left, upper right, a left side
Under, bottom right four is to magnetic control contactor（It is unmarked）.
As shown in figure 14, the conversion magnetic field side on the well metope being arranged on the by-level line of each floor door 3
It is characterised by the circuit arrangement of the normally opened magnetic switch 110 connected：
By taking the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 152 of the second floor door is connected as an example：
The upper left magnetic control of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 152 of the second floor door is connected
The lower-left of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 153 of contactor and third story layer door is connected
Magnetic control contactor is concatenated into a circuit；
The bottom right magnetic control of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 152 of the second floor door is connected
The upper right of the normally opened magnetic switch 110 that the conversion magnetic direction on the by-level line 151 of contactor and the first floor door is connected
Magnetic control contactor is concatenated into a circuit；
The two lines road of above-mentioned composition is arranged in parallel road into a line and is opened as the electromagnetism that can not automatically reset belonging to the second floor
A part in the major loop of the c2 electromagnet 103 for closing 10；
The circuit plan of establishment more than, by that analogy, is applied to the normally opened magnetic control that the conversion magnetic direction of whole elevator is connected
Switch 110.
The normally opened magnetic switch unit that the conversion magnetic direction is connected is characterised by：
When car is moved up and down, the d electromagnet 111 of energization can connect the conversion magnetic direction being arranged on well metope
Normally opened magnetic switch 110 be operated；
One row d electromagnet 111 of the upper and lower stripe board 112 on car is in a kind of magnetic direction, and car moves up second
Building, a row d electromagnet 111 of upper and lower stripe board 112 is by the floor of by-level line 151 and second door of the first floor door
On by-level line 152 conversion magnetic direction connect normally opened magnetic switch 110 when, now can only the floor of adhesive first door
The normally opened magnetic switch 110 that by-level line 151 is connected with the conversion magnetic direction on the by-level line 152 of the second floor door
Upper left, lower-left two to magnetic control contactor, the c2 electromagnetism of the electromagnetic switch 10 that can not automatically reset installed in the first floor can be made
The major loop closure of iron 103；
The magnetic direction of one row d electromagnet 111 of the upper and lower stripe board 112 on conversion car, makes d electromagnet 111 be in another kind
After magnetic direction, car is moved down first building, and a row d electromagnet 111 of upper and lower stripe board 112 is by the second floor door
The normally opened magnetic switch 110 that by-level line 152 is connected with the conversion magnetic direction on the by-level line 151 of the first floor door
When, now can only the floor of adhesive second door the floor of by-level line 152 and first door by-level line 151 on conversion magnetic
To magnetic control contactor, can make to install in the second floor can not for the upper right of normally opened magnetic switch 110 that field direction is connected, bottom right two
The major loop closure of the c2 electromagnet 103 of the electromagnetic switch that automatically resets 10.
As shown in figure 14, it is common on the main electrical scheme of the motor M1 of the d electromagnet 111 and traction machine that a gearing is being set just
Decommutator 12；
Described to interlock positive and negative converter 12 by elevator master control, the operation demand of the anti-shear protective equipment according to this case elevator is corresponding
Set and control.
As shown in figure 14, the positive and negative converter 12 of gearing is characterised by：E electromagnet 123 is powered and produces magnetic force, to the right
Attract e permanent magnets 122, card has on the main electrical scheme of motor M1 and d electromagnet 111 of traction machine thereon just to pull e permanent magnets 122
The insulated tension pole 121 of contactor KM groups, reaches the wiring order of the main electrical scheme of the motor M1 of conversion traction machine, while also converted
The wiring order of the main electrical scheme of d electromagnet 111, so as to reach the motor M1 of rotating traction machine simultaneously and change d electromagnet 111
Magnetic direction purpose.
Elevator using the anti-shear protective equipment of elevator described in this case includes following setting：
During door-opened elevator, first start the anti-shear protective equipment of elevator and be operated, make the expansion link 63 of electrical retractor complete
After stretching out in the through hole block 2 for being inserted into and being installed on elevator metope, restart door opening/closing apparatus（It is not shown）Opened the door；
Before elevator is moved up and down, first start elevator switch door gear and shut up the door carefully, restart the anti-shear protective equipment of elevator and enter
Row work, after the expansion link 63 of electrical retractor is fully retracted the through hole block 2 for exiting and being installed on elevator metope, then
Elevator just carries out upper and lower travel operation.
Elevator and master control of this case also using the anti-shear protective equipment of the elevator.
This case utilizes prior art：Shut up the door carefully switch with elevator（It is not shown）To control the motor M3 of electrical retractor
The normally opened relay set on major loop（It is not shown）；When elevator shuts up the door carefully, elevator shuts door switch makes electric expansion
Normally opened relay closure on the major loop of the motor M3 of device, connects the major loop of the motor M3 of electrical retractor, electronic
The motor M3 of retractor device at this moment could start completion work；Conversely, when elevator does not shut up the door carefully, the motor M3 of electrical retractor
Major loop be to be off, at this moment the motor M3 of electrical retractor cannot start work.
It is easy to draw the characteristics of elevator for implementing the anti-shear protective equipment of this case elevator has following above：
Elevator can only in the stop of the up call key 142 for pressing floor call box, press the down call key of floor call box
143 stop, press operation panel in railway carriage or compartment select the predetermined stop of the selected stop of layer key 132, elevator, electric expansion could be started
The motor M3 of device；
Elevator only keeps off first the fully extended through hole installed on elevator metope that is inserted into of the expansion link 63 of electrical retractor
After in block 2（Now elevator has been in the anti-shear protective being perfectly safe）, at this moment elevator can open door for passenger pass in and out；
The expansion link 63 of electrical retractor disconnects the main electrical scheme of the motor M1 of traction machine while stretching out（Causing elevator can not anticipate
It is actuated for travelling up and down outward）；
The expansion link of the electrical retractor that the retraction of electric expansion unit is exited in the through hole block 2 being inserted on elevator metope
Before 63, first have to meet elevator after stop shuts up the door carefully（At this moment passenger has been not at the position for easily producing elevator to shear accident
Put）, at this moment the major loop of the motor M3 of electrical retractor can just connect, the motor M3 of electrical retractor could be started, make
The through hole block 2 that the retraction of expansion link 63 of electrical retractor is exited on elevator metope；
Elevator is shut up the door carefully, the expansion link of electrical retractor 63 is fully retracted after resetting, electronic to stretch in the way for being travelled up and down
The motor M3 of compression apparatus can not start the expansion link 63 for stretching out electrical retractor（Reach the expansion link of protection electrical retractor
63 are not collided）；The expansion link 63 of electrical retractor is not extended out and, and elevator door is to open（In travelling up and down
Lift car in passenger, it is impossible to arbitrarily the gap walking out elevator door and enter between car door 4 and hoistway and cause extruding
Shearing accident）；
Elevator up-down is sailed, and can only make the c2 electromagnet of the electromagnetic switch 10 that can not automatically reset of the subsequent floor of lift car
103 energization work；When the uplink and downlink call key of subsequent floor call box has all gone to be acted up to elimination, can not be certainly
Contacted on the major loop of the c2 electromagnet 103 of dynamic reset electromagnetic switch 10 a normally closed relays 113 and b normally closed relays of setting
114 have recovered in closure state, and c2 electromagnet 103 just can be a electromagnet 81 of magnetic switch unit and flexible top board list
The major loop of the b electromagnet 91 of unit disconnects, and a electromagnet 81 for making magnetic switch unit loses magnetism, the b electricity of flexible top plate unit
The demagnetization of magnet 91, causes the top board 9121 of flexible top plate unit to be retracted and resets.
Embodiments of the invention have been made with main explanation above in association with accompanying drawing, but the invention is not limited in above-mentioned implementation
Example, in the ken that those of ordinary skill in the art possess, can also make under the thinking for not departing from the principle of the invention
Go out various replacements, increase and decrease and change, various replacements, increase and decrease and the change made both fall within protection scope of the present invention.
Claims (8)
1. a kind of anti-shear protective equipment of elevator includes：
Through hole block is installed on the elevator metope of each floor（2）；For the expansion link of electrical retractor（63）Insertion；
Electric expansion unit on car, the electric expansion unit is symmetrically mounted on car and is at least a pair；Institute
State electric expansion unit it is main by：Electrical retractor（6）, electrical retractor base（61）, electrical retractor stretches
Contracting bar（63）, a extrusion elastics switch（64）, b extrusion elastics switch（65）Constitute；
The a extrusion elastics switch（64）Switched with b extrusion elastics（65）It is normally closed switch, the pressure of its touch point is disconnection, bullet
It is closure to rise；
The a extrusion elastics switch of all electric expansion units on car（64）, it is arranged in series in switch gate electricity
Machine（M2）Major loop on；Switch door motor（M2）Just directly switched by a extrusion elastics（64）Open and close control；
The b extrusion elastics switch of all electric expansion units on car（65）, it is arranged in series in traction machine
Motor（M1）Wherein one main electrical scheme on set a c normally opened relay（M1-1）Control circuit on；B extrusion elastics are opened
Close（65）Open and control c normally opened relays with conjunction（M1-1）Work, the motor of traction machine（M1）Work just directly receives b and squeezes
Pressure elastic sheet switch（65）Control；
Switched using the b extrusion elastics of the above-mentioned electric expansion unit on car（65）To control the motor of traction machine
（M1）Scheme, be equally also provided be arranged on car on electric expansion unit b extrusion elastics switch（65）For controlling often
Close magnetic control brake；
Magnetic switch unit, the magnetic switch unit it is main by：The guide rail of each floor（7）The a electromagnet of upper setting（81）、
Car regular calling in stop, with a electromagnet（81）Relative car roof（5）The normally opened magnetic switch of upper setting（82）Structure
Into；
The normally opened magnetic switch（82）It is arranged on electrical retractor（6）Electrical retractor motor（M3）Major loop
On, a electromagnet（81）The band magnetic that is powered directly control normally opened magnetic switch with demagnetization is powered off（82）Disconnection with closure；
The switch element that extruding of meeting is connected, switch element that the extruding of meeting is connected it is main by：The guide rail of each floor（7）
The flexible top plate unit of upper setting, the extruding switch element being arranged on car composition；
The flexible top plate unit it is main by：It is arranged on guide rail（7）On flexible top plate unit support frame（910）, top of stretching
The support frame of Slab element（910）The b electromagnet that left end is set（91）, right-hand member set pull bar（912）；Pull bar（912）'s
Left end is provided with b permanent magnets（911）, be enclosed within pull bar（912）On compression spring（913）, pull bar（912）Right-hand member sets thereon
Put the strip top board for inclined-plane with two ends（9121）, pull bar quill（92）Constitute；
The b electromagnet（91）To b permanent magnets during energization（911）Repulsion is produced, b permanent magnets are promoted to the right（911）, cause top board
（9121）Along the chute opening of sleeve（921）Move right；B electromagnet（91）After power-off loses magnetic force, b permanent magnets（911）
By compression spring（913）Tension force be moved to the left, cause top board（9121）Retract to the left；
Extrude the c extrusion elastics switch of switch element（93）It is normal open switch；When car is moved up and down, the c extruding on car
The extrusion head of elastic sheet switch（931）Guide rail can be subject to（7）On flexible top plate unit energization work after, the top board that comes of promotion
（9121）The extruding of formation and connect c extrusion elastics switch（93）；
The c extrusion elastics switch（93）It is arranged on the motor of electrical retractor（M3）Major loop on, c extrusion elastics switch
（93）Be pressurized the motor connected and disconnected with decompression and just directly control electrical retractor（M3）Work；
The normally opened magnetic switch of above-mentioned magnetic switch unit（82）C extrusion elastics with extruding switch element are switched（93）It is in parallel
It is arranged on the motor of electrical retractor（M3）Major loop in；
The a electromagnet of the magnetic switch unit（81）With the b electromagnet of flexible top plate unit（91）By can not automatic reset electro
Magnetic switch（10）Control；
The c1 electromagnet（101）By floor call box（14）The a control devices of middle setting（145）Control；
The a control devices（145）It is characterised by：
The up call key of floor call box（142）, floor call box down call key（143）, in railway carriage or compartment operation panel choosing layer
Key（132）Any one key, perform operation just association start a control devices（145）, go to just be associated up to elimination action and stop
Only a control devices（145）；
The a control devices（145）Start work, just make c1 electromagnet（101）Major loop closure be powered produce magnetic force；
The c2 electromagnet（103）Major loop on series winding be provided with a normally closed relays（113）With b normally closed relays（114）、
The normally opened magnetic switch that conversion magnetic direction is connected（110）；
The a normally closed relays（113）With b normally closed relays（114）By floor call box（14）The b control devices of middle setting
（146）Control；
The b control devices（146）It is characterised by：The up call key of floor call box（142）Press, b control devices
（146）It is just corresponding to start a normally closed relays（113）；The down call key of floor call box（143）Press, b control devices
（146）It is just corresponding to start b normally closed relays（114）；The uplink and downlink call key of floor call box go to up to elimination act when,
Just association stops b control devices（146）It is correspondingly arranged a normally closed relays of control（113）Or b normally closed relays（114）；
Conversion magnetic direction connect normally opened magnetic switch unit, mainly by：It is arranged on each floor door（3）By-level line
On well metope on conversion magnetic direction connect normally opened magnetic switch（110）, the upper and lower stripe board being arranged on car
（112）Row's d electromagnet（111）Constitute；
The normally opened magnetic switch that the conversion magnetic direction is connected（110）Have thereon：Upper left, upper right, lower-left, bottom right four are to magnetic
Control contactor；
It is described to be arranged on each floor door（3）By-level line on well metope on conversion magnetic direction connect normally opened magnetic
Control switch（110）Circuit arrangement be characterised by：
The by-level line of the second floor door（152）On conversion magnetic direction connect normally opened magnetic switch（110）Upper left
The by-level line of magnetic control contactor and third story layer door（153）On conversion magnetic direction connect normally opened magnetic switch
（110）Lower-left magnetic control contactor be concatenated into a circuit；
The by-level line of the second floor door（152）On conversion magnetic direction connect normally opened magnetic switch（110）Bottom right
The by-level line of magnetic control contactor and the first floor door（151）On conversion magnetic direction connect normally opened magnetic switch
（110）Upper right magnetic control contactor be concatenated into a circuit；
The two lines road of above-mentioned composition is arranged in parallel road into a line and is opened as the electromagnetism that can not automatically reset belonging to the second floor
Close（10）C2 electromagnet（103）Major loop in a part；
The circuit plan of establishment more than, by that analogy, is applied to the normally opened magnetic control that the conversion magnetic direction of whole elevator is connected
Switch（110）；
The d electromagnet（111）With the motor of traction machine（M1）Main electrical scheme on common set one and interlock positive and negative converter
（12）；
It is described to interlock positive and negative converter（12）By elevator master control, the operation demand phase of the anti-shear protective equipment according to this case elevator
Should set and control；
Elevator and master control of this case also using the anti-shear protective equipment of the elevator.
2. the anti-shear protective equipment of elevator according to claim 1, it is characterised in that：Electric expansion unit starting works, and makes
The expansion link of electrical retractor（63）Stretch out and be inserted into through hole block（2）In or make the expansion link of electrical retractor（63）
Through hole block is exited in retraction（2）；
When the expansion link of electrical retractor（63）After fully extended, the touch point for just switching a extrusion elastics（642）Decompression bullet
Play closure a extrusion elastic switches（64）；When the expansion link of electrical retractor（63）After being fully retracted, just open b extrusion elastics
The touch point of pass（652）Decompression is upspring and closes b extrusion elastics switch（65）；
When the expansion link of electrical retractor（63）Stretch out the touch point of pressure b extrusion elastic switches（652）When, just it is disconnected b
Extrusion elastic is switched（65）；When the expansion link of electrical retractor（63）The touch point that pressure a extrusion elastics of retracting are switched（642）
When, just it is disconnected a extrusion elastics switch（64）.
3. the anti-shear protective equipment of elevator according to claim 1, it is characterised in that：When the normally opened magnetic switch on car
（82）Mutually run into guide rail（7）A electromagnet during upper energization（81）, normally opened magnetic switch（82）Electricity will just can turn on by adhesive
The motor of dynamic retractor device（M3）Circuit.
4. the anti-shear protective equipment of elevator according to claim 1, it is characterised in that：When c1 electromagnet（101）Be powered band magnetic
When attract the movable permanent magnets of c（102）, it is drawn through the movable permanent magnets of c for coming（102）Body connects two relative elastic springs in interval
Piece（104）, so as to close a electromagnet of magnetic control switch element（81）With the b electromagnet of flexible top plate unit（91）Major loop；
When c2 electromagnet（103）Attract c movable permanent magnets when being powered with magnetic（102）, the movable permanent magnets of c（102）It is drawn through after coming and just disconnects
The a electromagnet of magnetic switch unit（81）With the b electromagnet of flexible top plate unit（91）Major loop.
5. according to any anti-shear protective equipment of elevator of claim 1 or 4, it is characterised in that：
When car is moved up and down, the d electromagnet of energization（111）, can connect the conversion magnetic direction being arranged on well metope
Logical normally opened magnetic switch（110）It is operated；
Upper and lower stripe board on car（112）Row's d electromagnet（111）In a kind of magnetic direction, car moves up
Second floor, upper and lower stripe board（112）Row's d electromagnet（111）By the by-level line of the first floor door（151）With second
The by-level line of floor door（152）On conversion magnetic direction connect normally opened magnetic switch（110）When, now can only adhesive
The by-level line of the first floor door（151）With the by-level line of the second floor door（152）On conversion magnetic direction connect
Normally opened magnetic switch（110）Upper left, lower-left two to magnetic control contactor, can make that installs in the first floor can not automatically reset
Electromagnetic switch（10）C2 electromagnet（103）Major loop closure；
Upper and lower stripe board on conversion car（112）Row's d electromagnet（111）Magnetic direction, makes d electromagnet（111）It is in
After another magnetic direction, car is moved down first building, upper and lower stripe board（112）Row's d electromagnet（111）By
The by-level line of two floors door（152）With the by-level line of the first floor door（151）On conversion magnetic direction connect
Normally opened magnetic switch（110）When, now can only the floor of adhesive second door by-level line（152）With the centre of the first floor door
Horizontal line（151）On conversion magnetic direction connect normally opened magnetic switch（110）Upper right, bottom right two to magnetic control contactor,
The electromagnetic switch that can not automatically reset installed in the second floor can be made（10）C2 electromagnet（103）Major loop closure.
6. according to any anti-shear protective equipment of elevator in claim 1,4 or 5, it is characterised in that：E electromagnet（123）It is logical
Electricity produces magnetic force, and e permanent magnets are attracted to the right（122）, just pull e permanent magnets（122）Card has the motor of traction machine thereon（M1）And d
Electromagnet（111）Main electrical scheme on contactor（KM）The insulated tension pole of group（121）, reach the motor of conversion traction machine（M1）'s
The wiring order of main electrical scheme, while also converted d electromagnet（111）Main electrical scheme wiring order, so as to reach positive and negative simultaneously
Turn the motor of traction machine（M1）With change d electromagnet（111）Magnetic direction purpose.
7. according to any anti-shear protective equipment of elevator of Claims 1-4, it is characterised in that：In actually implementing, according to
Needs can select magnetic switch unit and the one of which of switch element for extruding and connecting of meeting.
8. according to any anti-shear protective equipment of elevator of Claims 1-4 or 5, it is characterised in that：
During door-opened elevator, first start the anti-shear protective equipment of elevator and be operated, make the expansion link of electrical retractor（63）It is complete
It is complete to stretch out the through hole block for being inserted into and being installed on elevator metope（2）In after, restart door opening/closing apparatus and opened the door；
Before elevator is moved up and down, first start elevator switch door gear and shut up the door carefully, restart the anti-shear protective equipment of elevator and enter
Row work, makes the expansion link of electrical retractor（63）It is fully retracted the through hole block for exiting and being installed on elevator metope（2）Afterwards,
Then elevator just carries out upper and lower travel operation.
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| CN201710290024.9A CN106904504B (en) | 2017-04-27 | 2017-04-27 | The anti-shear protective equipment of elevator |
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|---|---|---|---|
| CN201710290024.9A CN106904504B (en) | 2017-04-27 | 2017-04-27 | The anti-shear protective equipment of elevator |
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| CN105858400A (en) * | 2016-05-31 | 2016-08-17 | 西继迅达（许昌）电梯有限公司 | Elevator system capable of preventing accidental movement |
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|---|---|---|---|---|
| JPH1053380A (en) * | 1996-08-12 | 1998-02-24 | Mitsubishi Denki Bill Techno Service Kk | Device for preventing elevator working lamp and pit lamp from being left on |
| DE19833772A1 (en) * | 1998-07-17 | 2000-01-20 | Giesen Leana | Fall prevention device for rail-guided lifts (elevators) with grip for taut signal cable |
| CN2568609Y (en) * | 2002-07-29 | 2003-08-27 | 张广兴 | Anti-faling, anti-shearing elevator door safety lock |
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|---|---|
| CN106904504B (en) | 2018-10-30 |
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