CN208394551U - A kind of early warning detection device of elevator door abnormal opening state - Google Patents
A kind of early warning detection device of elevator door abnormal opening state Download PDFInfo
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- CN208394551U CN208394551U CN201820526092.0U CN201820526092U CN208394551U CN 208394551 U CN208394551 U CN 208394551U CN 201820526092 U CN201820526092 U CN 201820526092U CN 208394551 U CN208394551 U CN 208394551U
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Abstract
The utility model relates to a kind of early warning detection devices of elevator door abnormal opening state, belong to elevator detection field.The device includes sound radar range unit, acceleration transducer, signal receiver, signal judgment means and signal projector, and distance signal is sent to signal receiver for measuring the distance between two elevator door leafs by sound radar range unit；Acceleration transducer is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal receiver；The distance signal received and acceleration signal are sent to signal judgment means by signal receiver, and signal judgment means judge whether early warning, and are sent the pre-warning signal of generation by signal projector.The utility model can accurately detect elevator door abnormal opening state, reduce interference, and low in cost, and easy to use, precision is accurate, be conducive to promote.
Description
Technical field
The utility model belongs to elevator detection field, is related to a kind of early warning detection device of elevator door abnormal opening state.
Background technique
Elevator is as special equipment, and the safety of operation and the safety of passenger are closely bound up, each elevator safety specification
It is all distinctly claimed and elevator cage door, hall door lock is sealed in into safety return circuit, to avoid harm is sheared.However, a large amount of in recent years
Occur artificially to open hall door and the unexpected accident for crashing into hoistway, the tragedy of personal injury is caused constantly to occur.For this purpose, elevator row
Occur the detection alarm and prompt technology that many non-leveling zone hall doors are opened accidentally in the industry.Such as a kind of Chinese patent " elevator hall
Detection device when the improper opening of door " (patent No. 01217409.2) discloses a kind of safety detection device.The device is special
On the basis of benefit " detection device and detection method when layer door where non-lift car is opened " (application number 00112131.6),
Three lead magnetic control change-over switch CKZ are increased in door pocket position, to realize the judgement to the floor position of opened hall door, with reality
The present layer issues alarm.Its implementation is, using in parallel with two magnetic switch being arranged in hoistway in hall door, works as elevator
At this layer, CK is attracted, and switch CKZ is shorted, and is not alarmed；When elevator is not at this layer, CK and CKZ are disconnected, and CKZ's draws
Line also has output, that is, can determine that elevator not in the layer and layer door by abnormal opening, warning device movement at this layer, prompt person
It not approach.But it has the following problems: though 1) magnetic switch can act in certain identification range with permanent magnet, in well
The each layer in road only installs a switch, and when installation site fixation, for having for the elevator of advance door opening function, hoistway
Switch may be attracted also, and hall door has been opened, and false alarm is caused；When elevator has story-leveling function again, hoistway door is opened,
And carriage can shift position, a possibility that movement of two magnetic switch is inconsistent, be very high due to passenger enters and leaves, therefore this mode is real
Border operates unreliable.2) device can not record the information of hall door abnormal opening, alarm and disappear after surprisingly opening the door and restoring,
Cannot be communicated with elevator control system, security risk may or it is existing, be also unfavorable for maintenance staff to malfunction elimination.Again
For example Chinese patent " safety detection device and its detection method of door of elevator waiting hall " (publication number CN101264839A) is announced
A kind of device of the improper enabling of detection layers door, is fitted at the stop signal that can handle serial signal in each floor
Device is managed, whether is opened using the mechanical switch detection layers door installed at layer door, by open layer door state signal serially to lead to
The mode of letter is passed to electric life controller.The interior exclusive program of electric life controller, by the stop signal and elevator car position of enabling
Or relevant information comparison, obtain whether belong to the non-landing stop of carriage, and layer door can effectively improve electricity by abnormal opening
Terraced safety utilizes the door area identification signal of elevator itself, when avoiding advance door opening or again leveling, two groups of purely mechanic switches
The identification delay easily caused and false alarm.1) the method, which has the disadvantage that, is completely dependent on electric life controller, to obtain carriage position
It sets and judges, and in elevator when powering off car slipping, it often will cause floor and practical floor in electric life controller and be not inconsistent now
As at this point, there are very big security risks for the device；2) when elevator power failure or maintenance power-off, which is also that can not play work
With, and the probability that hall door is artificially opened at this time be it is very big, accident also easily occurs；3) this utility model is not depicted in judgement
Specific alarming method after hall door abnormal opening only records in elevator interior, can not play warning personnel hall door beyond this point
Effect；4) utility model requires that the stop being at least made of CPU, serial communication controller etc. is all arranged in each layer
Signal processing apparatus, this will greatly increase cost.For another example Chinese patent " Intelligent warning system for abnormal opening of hoistway door and its
Safety detection method " (application publication number CN102085990A) discloses the new hall door abnormal opening detection of one kind and alarm side
Method, using be mounted on hall door infrared sensor, carriage infrared sensor and external output processing circuit, central processing unit,
Floor address decoding circuitry, wireless radio transmission circuit, serial communication interface circuit and alarm drive circuit composition.Implementation
Whether to be opened for, hall door infrared sensor detection hoistway door, whether carriage infrared sensor detects carriage in this floor, when
Carriage not in this floor and hall door after central processing unit is judged, passes through wireless radio frequency circuit or serial circuit when opening
Signal is issued, and drives warning circuit, can be realized in hall door abnormal opening and the letter of alarm and floor where exporting
Number.There is also following deficiencies for the utility model: 1) hall door infrared sensor and carriage is all arranged in each layer in the patent requirements
Identification sensor, cost is very high, while installation and debugging difficulty is higher；2) be used for a long time infrared sensor it is found that its be easy by
It is interfered to visible light, especially the outer infrared sensor of hall door, which does not describe infrared sensor setting position, to identification
The unlatching of hall door blocks sensor when will necessarily also be passed in and out by passenger；Carriage infrared sensor is because being arranged in hoistway
It identifies car position, is also easy to be covered by hoistway dust, which is easily judged by accident；3) when elevator leveling and advance door opening again
When, which not can avoid two infrared sensor movement inconsistence problems, easily generation false alarm yet.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of early warning of elevator door abnormal opening state detections to fill
It sets, carries out detection and early warning for the case where elevator door abnormal opening.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of early warning detection device of elevator door abnormal opening state, the device include sound radar range unit, accelerate
Sensor, signal receiver, signal judgment means and signal projector are spent,
The sound radar range unit is electrically connected with signal receiver respectively with acceleration transducer, signal receiver with
Signal judgment means and signal projector series connection；
Distance signal is sent to signal for measuring the distance between two elevator door leafs by sound radar range unit
Receiver；Acceleration transducer is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal receiver；Letter
The distance signal received and acceleration signal are sent to signal judgment means by number receiver, and signal judgment means judge whether pre-
It is alert, and sent the pre-warning signal of generation by signal projector.
Further, the signal judgment means judge whether early warning specifically:
As door leaf distance s > door leaf normal maximum distance smax, or work as door leaf speed of service v > threshold speed ε and s >
The normal minimum range s of door leafminIn the case where, the processing result signal u=1 of signal judgment means, signal projector sends out letter
Number keep elevator out of service, and sounds an alarm；In addition to both of these case, the processing result signal u=0 of signal judgment means, letter
Number transmitter does not issue order；It indicates are as follows:
Further, the normal minimum range s of the door leafminTake 2cm, door leaf normal maximum distance smaxTake 10cm.
The utility model has the beneficial effects that: the utility model can accurately detect elevator door abnormal opening state, reduce
Interference, and it is low in cost, easy to use, precision is accurate, is conducive to promote.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model scheme of installation；
Fig. 3 is that signal judgment means judge schematic diagram.
Appended drawing reference: 1- sound radar range unit, 2- acceleration transducer, 3- signal receiver, 4- signal judgement dress
It sets, 5- signal projector, 6- electric life controller, 7- elevator door leaf.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Figure 1 and Figure 2, a kind of early warning detection device of elevator door abnormal opening state, which includes sound radar
Range unit 1, acceleration transducer 2, signal receiver 3, signal judgment means 4 and signal projector 5,
Sound radar range unit 1 is electrically connected with signal receiver 3 respectively with acceleration transducer 2, signal receiver 3 with
Signal judgment means 4 and signal projector 5 are connected；
Distance signal is sent to letter for measuring the distance between two elevator door leafs by sound radar range unit 1
Number receiver 3；Acceleration transducer 2 is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal and is received
Device 3；The distance signal received and acceleration signal are sent to signal judgment means 4, signal judgment means 4 by signal receiver 3
Judge whether early warning, and the pre-warning signal of generation is sent to electric life controller 6 by signal projector 5.
Abnormality refers to that elevator itself does not control door opening, but the case where door is opened by force by external force, also
It is to say, elevator is detected in the case where not sending opening signal.
As shown in figure 3, working as door leaf distance s > door leaf normal maximum distance smax, or work as door leaf speed of service v > speed
Threshold epsilon and the normal minimum range s of s > door leafminIn the case where, the processing result signal u=1 of signal judgment means 4, signal hair
Emitter 5, which sends out signal, keeps elevator out of service, and sounds an alarm；In addition to both of these case, the processing knot of signal judgment means 4
Fruit signal u=0, signal projector 5 do not issue order；It indicates are as follows:
The normal minimum range s of door leafminTake 2cm, door leaf normal maximum distance smaxTake 10cm.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (1)
1. a kind of early warning detection device of elevator door abnormal opening state, it is characterised in that: the device includes sound radar ranging
Device, acceleration transducer, signal receiver, signal judgment means and signal projector,
The sound radar range unit is electrically connected with signal receiver respectively with acceleration transducer, signal receiver and signal
Judgment means and signal projector series connection；
Distance signal is sent to signal and received by sound radar range unit for measuring the distance between two elevator door leafs
Device；Acceleration transducer is used to measure the acceleration of elevator door leaf, and acceleration signal is sent to signal receiver；Signal connects
It receives device and the distance signal received and acceleration signal is sent to signal judgment means, signal judgment means judge whether early warning,
And the pre-warning signal of generation is sent by signal projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820526092.0U CN208394551U (en) | 2018-04-13 | 2018-04-13 | A kind of early warning detection device of elevator door abnormal opening state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820526092.0U CN208394551U (en) | 2018-04-13 | 2018-04-13 | A kind of early warning detection device of elevator door abnormal opening state |
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| CN208394551U true CN208394551U (en) | 2019-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439114A (en) * | 2018-04-13 | 2018-08-24 | 武汉万曦智能科技有限公司 | A kind of early warning detection device of elevator door abnormal opening state |
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2018
- 2018-04-13 CN CN201820526092.0U patent/CN208394551U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439114A (en) * | 2018-04-13 | 2018-08-24 | 武汉万曦智能科技有限公司 | A kind of early warning detection device of elevator door abnormal opening state |
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