CN206927410U - A kind of control circuit of safety protection apparatus for elevator - Google Patents
A kind of control circuit of safety protection apparatus for elevator Download PDFInfo
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- CN206927410U CN206927410U CN201720902184.XU CN201720902184U CN206927410U CN 206927410 U CN206927410 U CN 206927410U CN 201720902184 U CN201720902184 U CN 201720902184U CN 206927410 U CN206927410 U CN 206927410U
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Abstract
A kind of control circuit of safety protection apparatus for elevator, belong to the safety guard technical field of elevator.Described safety protection apparatus for elevator includes braking block part and brake block touches part; brake block, which touches part, includes magnet coil; control circuit includes city's power detection circuit, rectification circuit, state switching circuit, charge-discharge control circuit and storage capacitor; city's power detection circuit connection AC power; city's power detection circuit, rectification circuit, state switching circuit and magnet coil are sequentially connected in series; charge-discharge control circuit connects city's power detection circuit and storage capacitor, storage capacitor connection status switching circuit.Realize that power network powers off suddenly in elevator normal operation, the delay braking of safety guard, be thus avoided that generation malfunction；Power-off during grid cut-off and emergency when can effectively distinguish elevator normal operation, and have delay braking and immediately two kinds of different countermeasures of braking, it is avoided that and causes unnecessary harm.
Description
Technical field
The utility model belongs to the safety guard technical field of elevator, and in particular to a kind of safety protection apparatus for elevator
Control circuit.
Background technology
Elevator is the indispensable vertical transport instrument of high-rise, and security is that its is basic.When lift car is anon-normal
Often during operation（Such as car leaves floor ground when lift car hypervelocity or car door opening）, it may occur however that danger have：People
Member is extruded, hits and fallen, shears；Car continues to travel after reaching top layer or bottom（Rush to summit or crouching bottom）；Sedan-chair
Exceed the speed limit or fallen caused by disconnected rope in railway carriage or compartment.Therefore, in order to prevent the generation of above-mentioned accident, elevator standard provides necessary on elevator
Unintended car movement protection device and overspeed protective device, such as the folder rope of the safety tongs of clamp rail, stop steel wire rope are installed
Device, stop counterweight or the safety tongs of direct stop car, the safety guard such as clip wheel device of stop traction sheave.These peaces
Some in full protection device are to power off to touch by electromagnet, such as Chinese invention patent Authorization Notice No. CN104444689B
The method of a kind of disclosed traction sheave safety guard and its urgent stop elevator car, Chinese utility model patent mandate are public
A kind of traction machine safety guard that announcement CN205170101U is introduced.As shown in Figure 1, Figure 2, shown in Fig. 3, these above-mentioned safety
Protection device all includes：Block part is braked, it includes being provided with the first brake block 300 of the first brake rubber block 340 and is provided with second
Second brake block 400 of brake rubber block 440；Mounting seat 200, for installing first, second brake block 300,400；Braked part 10, institute
The first brake rubber block 340 and the second brake rubber block 440 stated are respectively placed in the left side and right side of braked part 10；Brake block touches part 500,
It promotes the first brake rubber block 340 and the second brake rubber block 440 to clamp braked part 10 and switch block 600.Wherein, described braking
Block, which touches part 500, includes housing 510, magnet coil 520, dynamic iron core 530, static iron core 540, tripping spring 560 and push rod
580, described magnet coil 520 is arranged in housing 510, and described dynamic iron core 530 and static iron core 540 are located in magnet coil
In 520, be powered when both can attract each other, described tripping spring 560 is arranged between dynamic iron core 530 and static iron core 540,
Described push rod 580 is T-shaped, and it is connected installation with dynamic iron core 530, and push rod 580 can be described in promotion in the presence of dynamic iron core 530
The second brake block 400 be pressed against on braked part 10.
When elevator normal operation, the magnet coil 520 that brake block touches part 500 is powered, dynamic iron core 530 and static iron core
Magnetic field force is produced between 540, dynamic iron core 530 overcomes the elastic force of tripping spring 560 by the magnetic field force, and the adhesive of static iron core 540,
The now normal operation of braked part 10.When running into failure, if elevator device detects car abnormal running, carry out disconnected
Electricity, now the magnetic field force disappearance between dynamic iron core 530 and static iron core 540, dynamic iron core 530 act in the elastic force of tripping spring 560
Lower to promote T-shaped push rod 580, then the second brake block 400 moves towards the direction of braked part 10, when the second brake rubber block 440 is with being made
During the right flank contact of moving part 10, the second brake rubber block 440 first applies an initial pressure to the right flank of braked part 10, is then made
Moving part 10 is rotated further, and drives the second brake rubber block 440 to move, and is then triggered first, second brake block 300,400 and is produced enough rub
Wipe brake force and carry out stop braked part 10.The instantaneous trigger switch block 600 of second brake rubber block 440 movement, switch block 600 are cut off
Elevator safety loop.This safety guard needs staff to fix a breakdown, and manual reset is carried out, in switch block 600
Set back, when safety return circuit is switched on, elevator could normal operation again.
However, during elevator normal operation, if power supply powers off suddenly, at this moment brake block touches part 500
Also the second brake rubber block 440 can be made to be contacted with braked part 10 and produce normal pressure, then braked part 10 is rotated further, and drives second
Brake rubber block 440 moves, and then triggers the enough friction brake forces of first, second brake block 300,400 generation and carrys out stop braked part
10, now braked part 10 is still by urgent stop.The moment same trigger switch part 600 of second brake rubber block 440 movement, switch
Part 600 cuts off elevator safety loop, and this generates malfunction so that even if power supply is powered again, safeguard protection dress
Put or need staff to carry out manual reset, set back in switch block 600, when safety return circuit is connected, can just make electricity
Terraced control circuit is re-energised.
In above-mentioned design, being re-energised after each normal power down of elevator, manual reset is required for, worked numerous
It is trivial, therefore just need a kind of method here or a kind of control circuit can distinguish power network power-off suddenly in normal operation and anon-normal
Power-off during reason condition, enable safety protection apparatus for elevator rapid stop elevator when running into failure, and powered off suddenly in power network
Under state, still there is accurate logic judging function, make safety guard delay braking, in safety guard delay braking
In the case of, when the second brake rubber block 440 contacts with braked part 10, braked part 10 should stop motion, second will not be driven again
Brake rubber block 440 moves, and touch switch part 600, switch block 600 would not cut off elevator safety loop to the second brake rubber block 440, this
Sample can save manual reset, and when power supply is powered again, safety guard automatically resets.
In view of above-mentioned prior art, it is necessary to the control circuit and its control method of existing safety protection apparatus for elevator
Improved, therefore, the applicant has made beneficial design, technical scheme described below is to produce under this background
Raw.
The content of the invention
The purpose of this utility model is to provide a kind of control circuit of safety protection apparatus for elevator, and it can distinguish normal fortune
The unexpected power-off of power network in row and power-off during abnormal condition, realize still to have in the unexpected off-position of power network and accurately patrol
Arbitration functions are collected, safety guard delay braking can be made, to avoid safety guard from producing malfunction.
The purpose of this utility model is such to what is reached, a kind of control circuit of safety protection apparatus for elevator, described
Safety protection apparatus for elevator includes braking block part and brakes block part for triggering to clamp the brake block of braked part
Part is touched, described brake block, which touches part, includes magnet coil, is provided with inside described magnet coil mutual during energization
The dynamic iron core and static iron core of attraction, described control circuit include city's power detection circuit, rectification circuit and state switching electricity
Road, described city's power detection circuit connection AC power, city's power detection circuit, rectification circuit, state switching circuit and electromagnetism
Coil is sequentially connected in series, it is characterized in that：Described control circuit also includes charge-discharge control circuit and storage capacitor, described
Input connection city's power detection circuit of charge-discharge control circuit, the output end of charge-discharge control circuit connect the defeated of storage capacitor
Enter end, the output end connection status switching circuit of storage capacitor.
In a specific embodiment of the present utility model, in addition to timing circuit, the input of the timing circuit
It is connected with state switching circuit, the output end of timing circuit is connected with rectification circuit.
In another specific embodiment of the present utility model, in addition to feedback sense circuit, the detection of described feedback
State switching circuit described in the input connection of circuit, the charge and discharge control that the output end connection of feedback sense circuit is described are electric
Road.
The utility model compared with prior art, has an advantageous effect in that as a result of said structure：Pass through increase
Charge-discharge control circuit and storage capacitor, realize that power network powers off suddenly in elevator normal operation, the delay of safety guard
Braking, thus it is avoided that generation malfunction；It is disconnected during grid cut-off and emergency when can effectively distinguish elevator normal operation
Electricity, and have delay braking and brake two kinds of different countermeasures immediately, according to actual conditions, using corresponding measure, energy
Avoid causing unnecessary harm；Reliable logic judgment can be achieved without increasing original circuit power supply in addition, increase newly
Electronic component is few, and cost is relatively low, and economy is good, and function is more comprehensively.
Brief description of the drawings
Fig. 1 is the top view that the embodiment of safety protection apparatus for elevator one described in the utility model is in off-position.
Fig. 2 is a Fig. 1 sectional view.
Fig. 3 is that the utility model makes safety protection apparatus for elevator system when lift car normal operation and elevator device power off
The structural representation of dynamic braked part out of service.
Fig. 4 is theory diagram of the present utility model.
In figure：1. city's power detection circuit；2. rectification circuit；3. state switching circuit；4. timing circuit；5. charge and discharge control
Circuit；6. storage capacitor；7. feedback sense circuit；300. first brake block；340. first brake rubber blocks；400. second brake block；
440. second brake rubber blocks；500. brake block touch part；510. housing；520. magnet coil；530. dynamic iron core；540. static iron core；
560. tripping spring；580. push rod；600. switch block.
Embodiment
Specific embodiment of the present utility model will be described in detail with reference to accompanying drawing below by applicant, but applicant is to reality
The description for applying example is not the limitation to technical scheme, and any changed in the form rather than substance according to the utility model design all should
When being considered as the scope of protection of the utility model.
Fig. 1~Fig. 3 is referred to, the utility model is related to a kind of control circuit of safety protection apparatus for elevator, described electricity
Terraced safety guard includes braking block part, touched for triggering braking block part with clamping the brake block of braked part 10
Part 500 and triggered by the action of the second brake rubber block 440 of braking block part, for cutting off electricity in car abnormal running
The switch block 600 of terraced safety return circuit.Described brake block, which touches part 500, includes magnet coil 520, described magnet coil
The dynamic iron core 530 to be attracted each other during energization and static iron core 540 are installed inside 520, dynamic iron core 530 and static iron core 540 it
Between be provided with tripping spring 560.The magnet coil 520 that described safety guard touches part 500 by brake block powers off
To touch：When the control circuit is powered, magnet coil 520 obtains electric and makes to produce magnetic field between dynamic iron core 530 and static iron core 540
Power, static iron core 540 attract dynamic iron core 530, dynamic iron core 530 is overcome the elastic force of tripping spring 560, and the adhesive of static iron core 540, this
When the normal operation of braked part 10；When running into failure, magnet coil 520 powers off, between dynamic iron core 530 and static iron core 540
Magnetic field force disappears, and safety guard stop braked part 10, car is stopped transport.
Referring to Fig. 4, described control circuit includes city's power detection circuit 1, rectification circuit 2, state switching circuit 3, fixed
When circuit 4, charge-discharge control circuit 5, storage capacitor 6 and feedback sense circuit 7.The described connection of city's power detection circuit 1 is handed over
Power supply is flowed, city's power detection circuit 1, rectification circuit 2, state switching circuit 3 and magnet coil 520 are sequentially connected in series.It is described
The input of timing circuit 4 be connected with state switching circuit 3, the output end of timing circuit 4 is connected with rectification circuit 2.It is described
Charge-discharge control circuit 5 input connection city's power detection circuit 1, charge-discharge control circuit 5 output end connection energy storage electricity
Hold 6 input, the output end connection status switching circuit 3 of storage capacitor 6.The input of described feedback sense circuit 7 connects
Described state switching circuit 3 is connect, fault-signal is received by state switching circuit 3, an output end of feedback sense circuit 7 connects
Connect charge-discharge control circuit 5, another output end connection status switching circuit 3.A, B, C binding post are provided with state switching circuit 3,
Described A, C binding post is used to connect rectification circuit 2 and magnet coil 520, and described B, C binding post is used to connect storage capacitor
6 and magnet coil 520.In the present embodiment, described city's power detection circuit 1, rectification circuit 2, state switching circuit 3, timing
Circuit 4, charge-discharge control circuit 5 and feedback sense circuit 7 can use custom circuit.
Please continue to refer to Fig. 4, and Fig. 1~Fig. 3 is combined, operation principle of the present utility model is illustrated.
When power supply is powered, 220V line voltages produce full-wave direct current voltage, the all-wave after the described rectification of rectification circuit 2
DC voltage passes to magnet coil 520 by the AC binding posts of state switching circuit 3, magnet coil 520 it is electric after, dynamic iron core
530 and the adhesive of static iron core 540, so as to discharge braked part 10, make elevator normal operation.Dynamic iron core 530 and the adhesive of static iron core 540
Afterwards, timing circuit 4 is started working, and the half-bridge in the full-wave direct current voltage of rectification circuit 2 is closed, and now magnet coil 520 is still
Dynamic iron core 530 and static iron core 540 is in attracting state with sufficiently large electromagnetic force, thus meet high pressure adhesive low pressure
The condition of maintenance.During above-mentioned power supply is powered, described charge-discharge control circuit 5 charges to storage capacitor 6.
If power supply powers off suddenly during elevator normal operation, at this moment feedback sense circuit 7 detects no fault-signal input,
Judge that the power network when situation belongs to normal operation powers off suddenly.Described charge-discharge control circuit 5, storage capacitor 6 and shape
The BC binding posts of state switching circuit 3 are sequentially communicated, and the electric energy on storage capacitor 6 passes to magnet coil 520 by BC binding posts,
Magnet coil 520 must be electric, makes dynamic iron core 530 and static iron core 540 continue to keep attracting state, and power cut-off can make elevator traction
Machine is powered off in advance, and the normal brake on traction machine is braked, and makes car normal smoothly out of service.The meeting of storage capacitor 6
Electric energy is discharged within a certain period of time, until electromagnetic force caused by magnet coil 520 can not inhale dynamic iron core 530 and static iron core 540
During conjunction, the second brake rubber block 440 for braking block part is just braked block and touches part 500 and is pushed into contact with braked part 10, but now
For elevator by normal brake stop, braked part 10 does not drive the second brake rubber block 440, and the second brake rubber block will not touch switch part
600, therefore elevator safety loop will not be disconnected, when power supply Power resumption again, dynamic iron core 530 and static iron core 540 are again
Adhesive, braked part 10 are released, and elevator restarts to run.Thus, grid cut-off when control circuit realizes normal operation,
The function of safety guard delay braking, it is no longer necessary to artificial failture evacuation.
If during Lift out of order, elevator device can carry out emergency power off according to the failure that detects, while to the control
Circuit inputs abort light, and feedback sense circuit 7 makes the BC binding posts of state switching circuit 3 quickly disconnect, now electromagnetism
Coil 520 instantaneously powers off because not having the power supply of power supply and storage capacitor 6, and braked part 10 is stopped by stop immediately, elevator
Only run.To make magnet coil 520 be re-energised to discharge braked part 10, then failure must be released, pending fault signal disappears
It can just re-power circuit after mistake.
Claims (3)
1. a kind of control circuit of safety protection apparatus for elevator, described safety protection apparatus for elevator include braking block part and
Part (500) is touched to clamp the brake block of braked part (10) for triggering braking block part, described brake block touches
Part (500) includes magnet coil (520), and the dynamic iron to be attracted each other during energization is provided with inside described magnet coil (520)
Core (530) and static iron core (540), described control circuit include city's power detection circuit (1), rectification circuit (2) and state
Switching circuit (3), described city's power detection circuit (1) connection AC power, city's power detection circuit (1), rectification circuit (2), shape
State switching circuit (3) and magnet coil (520) are sequentially connected in series, it is characterized in that：Described control circuit also includes charge and discharge
Electric control circuit (5) and storage capacitor (6), input connection city's power detection circuit of described charge-discharge control circuit (5)
(1), the input of the output end connection storage capacitor (6) of charge-discharge control circuit (5), the output end connection of storage capacitor (6)
State switching circuit (3).
2. the control circuit of a kind of safety protection apparatus for elevator according to claim 1, it is characterised in that also include timing
Circuit (4), the input of the timing circuit (4) are connected with state switching circuit (3), the output end of timing circuit (4) with it is whole
Current circuit (2) is connected.
3. the control circuit of a kind of safety protection apparatus for elevator according to claim 1, it is characterised in that also include feedback
Circuit (7) is detected, the state switching circuit (3) described in the input connection of described feedback sense circuit (7), is cut by state
Change circuit (3) and receive fault-signal, the output end connection charge-discharge control circuit (5) of feedback sense circuit (7), another output
Hold connection status switching circuit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902184.XU CN206927410U (en) | 2017-07-24 | 2017-07-24 | A kind of control circuit of safety protection apparatus for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720902184.XU CN206927410U (en) | 2017-07-24 | 2017-07-24 | A kind of control circuit of safety protection apparatus for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206927410U true CN206927410U (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720902184.XU Active CN206927410U (en) | 2017-07-24 | 2017-07-24 | A kind of control circuit of safety protection apparatus for elevator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215740A (en) * | 2017-07-24 | 2017-09-29 | 苏州通润驱动设备股份有限公司 | The control circuit and its method of a kind of safety protection apparatus for elevator |
-
2017
- 2017-07-24 CN CN201720902184.XU patent/CN206927410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215740A (en) * | 2017-07-24 | 2017-09-29 | 苏州通润驱动设备股份有限公司 | The control circuit and its method of a kind of safety protection apparatus for elevator |
| CN107215740B (en) * | 2017-07-24 | 2023-12-08 | 苏州通润驱动设备股份有限公司 | Control circuit and method for elevator safety protection device |
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