CN203877683U - Elevator redundant electrical safety circuit - Google Patents
Elevator redundant electrical safety circuit Download PDFInfo
- Publication number
- CN203877683U CN203877683U CN201420338117.6U CN201420338117U CN203877683U CN 203877683 U CN203877683 U CN 203877683U CN 201420338117 U CN201420338117 U CN 201420338117U CN 203877683 U CN203877683 U CN 203877683U
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- switch
- elevator
- safety
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- safety relay
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Abstract
The utility model discloses an elevator redundant electrical safety circuit, which comprises a first group of switches, a second group of switches, a third group of switches and a fourth group of switches. The elevator redundant electrical safety circuit can guarantee to effectively evacuate trapped person in time under the premise that the safety of an elevator is guaranteed when the elevator breaks down by adding the third and the fourth groups of switches in a traditional safety circuit, thereby improving operation reliability of the elevator, reducing secondary damage caused by fault of the elevator, and further guaranteeing safety of passengers.
Description
Technical field
The utility model relates to a kind of lift circuit, particularly the electric safety return circuit of a kind of elevator redundancy.
Background technology
In recent years, rapidly, the situation that breaks down is a lot of for China's elevator industry development.In general, elevator faults causes the probability of personal casualty very low, but easily passenger is trapped in car, do not meet people to elevator serviceability, find fault promptness, save the rapid degree of stranded passenger, solve the requirements at the higher level such as fault convenience and validity.According to incompletely statistics, Guangzhou elevator malfunction event in 2013 occurs 16.7 average every day; In 2012, there is nearly thousand of elevator malfunction events in Xiamen City; On June 5th, 2013, Shanghai New World mall, 30 multi-section elevators have 10 multi-section elevators to occur oppressive event simultaneously; At present,, in recent years there are oppressive event more than 500 times in 40,000 of Changsha elevator total amounts.When Lift out of order, when especially same community has some elevators to break down simultaneously, rescue group is difficult to the passenger in every elevator to succour in time, and passenger stranded be just easy to too for a long time accidents caused, for example just there is this type of accident in Chongqing City the beginning of this year, causes a passenger unfortunately to die.What therefore, how to avoid elevator malfunction accident is a very important problem.
Apparatus for controlling elevator can be divided into electric drive system and two main portions of electric control system substantially.Electric drive system mainly comprises elevator motor and gate switch door operation driving circuit.Electric control system peripheral hardware comprises interior choosing and outgoing call call button, floor sensors, door system electric safety switch, safety device switch etc., and control part comprises as 32 bit CPUs, control with core parts such as relay, communication function plates and form.
Typical electrical control system of elevator block diagram as shown in Figure 1, is mainly comprised of panel block, leveling device etc. in drive system, control system, electrical safety loop, car.What wherein drive system completed is that towing machine drives function; What control system completed is that elevator is controlled and management function communication function responsible and elevator peripheral circuit, is the core of whole apparatus for controlling elevator; Electrical safety loop is that the switch series of all safety components of elevator is associated in a loop, when all safety component switches, all safety relay could adhesive in the situation in connecting, guarantee that elevator machine and electric apparatus are all when safe and effective state, elevator could obtain electric operation.
When elevator normally moves, apparatus for controlling elevator breaks down suddenly or break down suddenly in electrical safety loop all can cause elevator out of service immediately, only have elevator after fault is eliminated again to put into operation, this is also two major causes that oppressive event occurs elevator.At present, still do not have effective means to prevent the generation of the oppressive event that stops causing because of elevator faults.
Utility model content
In view of this, the purpose of this utility model is to provide the electric safety return circuit of a kind of elevator redundancy, can guarantee when elevator breaks down, guaranteeing under elevator safety prerequisite, evacuate timely and effectively trapped personnel, thereby improve elevator reliability of operation, reduce the injury again that elevator faults causes, further ensure passenger safety.
The purpose of this utility model is achieved through the following technical solutions, the electric safety return circuit of a kind of elevator redundancy, comprise first group of switch and second group of switch, described first group of switch comprises each layer of door switch, the first safety relay and a CUP, and described second group of switch comprises security window switch, expansion tightening wheel switch, pit buffer switch, the second safety relay and the 2nd CPU; Also comprise the first select switch, the second select switch, the 3rd group of switch and the 4th group of switch, described the 3rd group of switch comprises overspeed protection switch, emergency stop switch, safety gear switch, handwheel switch, governor switch, gate switch, the 3rd safety relay and the 3rd CPU, and described the 4th group of switch comprises limes superiors switch, smallest limit switch, the 4th safety relay and the 4th CPU; A wherein static contact of described the first select switch is connected with the moving contact of the second select switch, and another static contact of described the first select switch is connected with two static contacts of the second select switch; Another static contact of described the first select switch connect successively emergency stop switch, overspeed protection switch, safety gear switch, expansion tightening wheel switch, gate switch, handwheel switch and governor switch, described governor switch is through the 3rd safety relay ground connection, and described the 3rd CPU controls the break-make of the 3rd safety relay; Described speed limiting switch, smallest limit switch, limes superiors switch connect successively, and described limes superiors switch is through the 4th safety relay ground connection, and described the 4th CPU controls the break-make of the 4th safety relay; Described security window switch is through the 4th safety relay ground connection, and described security window switch, pit buffer switch, Room door switch connect successively, and described Room door switch is through the first safety relay ground connection, and a described CPU controls the break-make of the first peace relay; The coupling end of described Room door switch and pit buffer switch is through the second safety relay ground connection, and described the 2nd CPU controls the break-make of the second safety relay.
Further, described Room door switch comprises the N layer Room door switch connecting successively, and N layer Room door switch is through the coil ground connection of the first safety relay.
Useful technique effect: can guarantee when elevator breaks down, guarantee, under elevator safety prerequisite, to evacuate timely and effectively trapped personnel, thereby improve elevator reliability of operation, reduce the injury again that elevator faults causes, further ensure passenger safety.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail, wherein:
Fig. 1 is typical electrical control system of elevator block diagram;
Fig. 2 is electrical safety loop electric diagram.
The specific embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail; Should be appreciated that preferred embodiment is only for the utility model is described, rather than in order to limit protection domain of the present utility model.
For guaranteeing that elevator can move safely, many safety components are housed on elevator.So-called electrical safety loop, is all equipped with safety switch at the corresponding safety component of elevator exactly, only has when all safety switchs are all in the situation that connecting, and safety relay adhesive, elevator just possesses the condition of operation.In the safety return circuit of traditional elevator, only have first group of switch and second group of switch.
The reliability of elevator electrical safety circuit switching is existed by the probability breaking down in actual moving process that affects of the factors such as the quality of switch own, running environment, maintenance adjustment, and arbitrary switch contact action in traditional electrical safety loop, elevator just will, in halted state, cause elevator malfunction rate high.In order to reduce the oppressive rate of passenger, introduce the redundancy protecting design of electrical safety loop, as shown in Figure 2.
The electric safety return circuit of a kind of elevator redundancy, comprise first group of switch and second group of switch, described first group of switch comprises each layer of entrance hall switch 14, the first safety relay I and a CUP, and described second group of switch comprises security window switch 12, expansion tightening wheel switch 6, pit buffer switch 13, the second safety relay II and the 2nd CPU; Also comprise the first select switch S1, the second select switch S2, the 3rd group of switch and the 4th group of switch, described the 3rd group of switch comprises overspeed protection switch 4, emergency stop switch, safety gear switch 5, handwheel switch 8, governor switch 9, gate switch 7, the 3rd safety relay III and the 3rd CPU, and described the 4th group of switch comprises limes superiors switch 11, smallest limit switch 10, the 4th safety relay IV and the 4th CPU; The one static contact of described the first select switch is connected with the moving contact of the second select switch, and another static contact of described the first select switch is connected with two static contacts of the second select switch; Another static contact of described the first select switch connect successively emergency stop switch, overspeed protection switch, safety gear switch, expansion tightening wheel switch, gate switch, handwheel switch and governor switch, described governor switch is through the 3rd safety relay ground connection, and described the 3rd CPU controls the break-make of the 3rd safety relay; Described speed limiting switch, smallest limit switch, limes superiors switch connect successively, and described limes superiors switch is through the 4th safety relay ground connection, and described the 4th CPU controls the break-make of the 4th full peace relay; Described security window switch is through the 4th safety relay ground connection, and described security window switch, pit buffer switch, Room door switch connect successively, and described Room door switch is through the first safety relay ground connection, and a described CPU controls the break-make of the first safety relay; The coupling end of described Room door switch and pit buffer switch is through the second safety relay ground connection, and described the 2nd CPU controls the break-make of the second safety relay; Described emergency stop switch comprises sedan-chair top emergency stop switch 1, pit emergency stop switch 2 and the control panel emergency stop switch 3 connecting successively, and described control panel guard's valve is connected with overspeed protection switch; Described Room door switch comprises the N layer Room door switch connecting successively, and N layer Room door switch is through the first safety relay ground connection.
If wherein the 3rd group of switch once motion continuation operation may cause device damage, after this group switch motion, elevator needs stop immediately, to avoid catastrophic effect; The 4th group of switch comprises limes superiors switch and smallest limit switch, mainly prevents that elevator from rushing to summit or squatting at the end, therefore, when this switch motion, in order to evacuate in time passenger, can carry out urgent electric operation; First group of switch comprises each layer of door switch, and such switch motion may be that a quilt is opened in addition on the one hand, or due to door switch bad contact, for preventing that external staff from being sheared and causing injures and deaths by car in the moment of opening the door, and should selectively control car and rerun; Protection and be convenient to succour passenger in elevator when second group of switch is intended to elevator faults; but when elevator normally moves; this group switch motion can not cause and cause elevator operation exception and personal casualty, therefore, can control elevator and continue to move to stop after nearest safe stop.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (3)
1. the electric safety return circuit of elevator redundancy, comprise first group of switch and second group of switch, described first group of switch comprises each layer of door switch, the first safety relay and a CUP, and described second group of switch comprises security window switch, expansion tightening wheel switch, pit buffer switch, the second safety relay and the 2nd CPU; It is characterized in that: also comprise the first select switch, the second select switch, the 3rd group of switch and the 4th group of switch, described the 3rd group of switch comprises overspeed protection switch, emergency stop switch, safety gear switch, handwheel switch, governor switch, gate switch, the 3rd safety relay and the 3rd CPU, and described the 4th group of switch comprises limes superiors switch, smallest limit switch, the 4th safety relay and the 4th CPU; A wherein static contact of described the first select switch is connected with the moving contact of the second select switch, and another static contact of described the first select switch is connected with two static contacts of the second select switch; Another static contact of described the first select switch connect successively emergency stop switch, overspeed protection switch, safety gear switch, expansion tightening wheel switch, gate switch, handwheel switch and governor switch, described governor switch is through the 3rd safety relay ground connection, and described the 3rd CPU controls the break-make of the 3rd safety relay; Described speed limiting switch, smallest limit switch, limes superiors switch connect successively, and described limes superiors switch is through the 4th safety relay ground connection, and described the 4th CPU controls the break-make of the 4th safety relay; Described security window switch is through the 4th safety relay ground connection, and described security window switch, pit buffer switch, Room door switch connect successively, and described Room door switch is through the first safety relay ground connection, and a described CPU controls the break-make of the first peace relay; The coupling end of described Room door switch and pit buffer switch is through the second safety relay ground connection, and described the 2nd CPU controls the break-make of the second safety relay.
2. the electric safety return circuit of a kind of elevator redundancy according to claim 1; it is characterized in that: described emergency stop switch comprises sedan-chair top emergency stop switch, pit emergency stop switch and the control panel emergency stop switch connecting successively, and described control panel guard's valve is connected with overspeed protection switch.
3. the electric safety return circuit of a kind of elevator redundancy according to claim 1, is characterized in that: described Room door switch comprises the N layer Room door switch connecting successively, and N layer Room door switch is through the first safety relay ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338117.6U CN203877683U (en) | 2014-06-23 | 2014-06-23 | Elevator redundant electrical safety circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338117.6U CN203877683U (en) | 2014-06-23 | 2014-06-23 | Elevator redundant electrical safety circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203877683U true CN203877683U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338117.6U Withdrawn - After Issue CN203877683U (en) | 2014-06-23 | 2014-06-23 | Elevator redundant electrical safety circuit |
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| Country | Link |
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| CN (1) | CN203877683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058309A (en) * | 2014-06-23 | 2014-09-24 | 重庆市特种设备检测研究院 | Elevator redundant electrical safety circuit and stopping control method |
-
2014
- 2014-06-23 CN CN201420338117.6U patent/CN203877683U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058309A (en) * | 2014-06-23 | 2014-09-24 | 重庆市特种设备检测研究院 | Elevator redundant electrical safety circuit and stopping control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |