CN1986372A - Elevator equipment - Google Patents

Abstract

An elevator device is equipped with a detection sensor for detecting foreign matter in a non-mechanical manner, thereby ensuring the safety necessary for an elevator entrance and exit. The elevator equipment of the present invention has a detection sensor (11), wherein the elevator equipment has: an elevator door forced closing unit (13b), which detects after the elevator door (7) completes the door opening action according to the continuous output or intermittent output of the foreign object detection signal Whether the predetermined time has passed, and the foreign object detection signal is invalidated after the predetermined time, and the elevator door (7) is forcibly closed; the elevator door speed adjustment unit (13b), when the elevator door is forcibly closed, The speed of the elevator door (7) is switched to a preset low speed; and the attention-raising unit (13b) reminds passengers to pay attention when the elevator door is forcibly closed. In this way, the customer's requirement not to be provided with safety boots can be met, and at the same time, the safety of users can be guaranteed.

Description

elevator equipment

technical field

The present invention relates to an elevator device capable of preventing accidents such as human beings being caught by elevator doors, and in particular to a method for controlling the opening and closing of the elevator door by means of a detection sensor installed on the elevator door to detect foreign matter in a non-mechanical manner elevator equipment.

Background technique

In an elevator, in order to prevent accidents in which the human body is caught by the elevator door, safety boots are generally provided that can protrude more than the vertical surface of the door stopper of the elevator door. When the safety boots are backed up, the elevator doors stop closing, or open while stopping the closing action. This method detects foreign objects mechanically, so that the elevator doors stop closing, or stop closing. The opening action is performed at the same time as the action.

And, as the prior art, there has been disclosed a scheme in which, for the purpose of improving safety, etc., as an auxiliary device for the safety boots, a non-mechanical boot is installed on or near the elevator door. A sensor for detecting foreign objects by way of detection, for example, a multi-beam door sensor is installed to detect whether there are passengers approaching the elevator door, and whether there is a foreign object at the clamping position of the elevator door.

Recently, in an elevator whose surroundings are all made of glass materials, for the sake of aesthetics, it is desired to have a safety boot that does not provide a mechanical detection of foreign matter on the elevator door, but a safety boot that detects foreign matter in a non-mechanical manner. Sensors to ensure the safety of the elevator at the entrance and exit of the elevator. However, conventional sensors that detect foreign objects in a non-mechanical manner and are intended to complement the function of safety boots have problems in ensuring the safety required for elevators. For example, various problems may arise that the detection sensor continuously detects a foreign object due to a malfunction, etc. In this state, the elevator door is always open and the elevator service is stopped, and the passengers who get on and off the elevator are in the elevator. The door collides with the elevator door when the door is forced to close; and the detection sensor malfunctions due to smoke generated by fire, etc., causing the elevator door to be in an open state. In this state, the smoke enters the elevator passage, which may make the elevator passage Become a chimney that fuels the fire.

Contents of the invention

The present invention is made in view of the problems existing in the above-mentioned prior art, and its purpose is to provide an elevator equipment that is provided with a detection sensor that detects foreign objects in a non-mechanical manner, thereby ensuring that the elevator entrance and exit must security.

In order to achieve the above object, in the invention of claim 1 of the present invention, the elevator equipment has an elevator car position detection unit, a detection sensor, and a control unit, and the elevator car position detection unit can judge whether the elevator is moving up or down in the elevator passage in the building. Whether the elevator car is parked in the area where the elevator door can be opened and closed, the detection sensor is arranged on the elevator door, detects foreign objects in a non-mechanical way and outputs a foreign object detection signal, and the control unit performs the detection of the elevator door according to the foreign object detection signal. The opening and closing control of the elevator car, and control the lifting of the elevator car, the elevator equipment is characterized in that it has an elevator door forced closing unit, an elevator door speed adjustment unit, and an attention-calling unit, and the elevator door forced closing unit responds to the foreign object The continuous output or intermittent output of the detection signal detects whether the predetermined time has passed after the elevator door completes the door opening action, and after the predetermined time has passed, the foreign object detection signal is invalidated, and the elevator door is forcibly closed. The elevator door, the elevator door speed regulating unit switches the speed of the elevator door to a preset low speed when the elevator door is forcibly closed, and the attention-calling unit reminds passengers to pay attention when the elevator door is forcibly closed .

In the invention of claim 1 of the present invention having the above-mentioned structure, the elevator door forced closing unit detects whether the elevator door passes through after the elevator door completes the door-opening action when the sensor for detecting the foreign object using a non-mechanical method continuously outputs or intermittently outputs the foreign object detection signal. After the specified time has elapsed, the foreign object detection signal is invalidated, and the elevator doors are forced to close. When the elevator door is forcibly closed, the elevator door speed regulating unit switches the speed of the elevator door to a preset low speed, and the attention-calling unit reminds passengers to pay attention when the elevator door is forcibly closed. In this way, by forcing the elevator door to close under specified conditions, it is possible to prevent the elevator door from being opened all the time due to malfunction, resulting in the elevator being out of service. Turns off speed while alerting passengers to attention, thus preventing collisions with elevator doors.

Further, in the invention of claim 2 of the present invention, it is characterized in that said attention calling unit has a voice reminder section for voice reminder through a speaker.

In the invention of claim 2 of the present invention having the above structure, when the elevator door is forced to close by the elevator door forced closing unit, the voice reminding part makes a voice reminding through the loudspeaker to remind passengers to pay attention. Thereby, passengers entering and leaving the elevator can grasp the situation that the elevator doors are closed, and can avoid collisions with the elevator doors.

Further, in the invention of claim 3 of the present invention, it is characterized in that the attention calling unit has a buzzer provided in the elevator car.

In the invention of claim 3 of the present invention having the above-mentioned structure, when the elevator door is forcedly closed by the elevator door forced closing unit, the buzzer emits a buzzing sound to remind passengers to pay attention. Thereby, passengers entering and leaving the elevator can grasp the situation that the elevator doors are closed, and can avoid collisions with the elevator doors.

And, in the invention of claim 4 of the present invention, it is characterized in that the forced closing unit of the elevator door detects whether the elevator door has passed after the door opening action is completed according to the fire detection signal output by the fire detector installed in the building. The specified time, and after the specified time has passed, the elevator doors are forcibly closed.

In the invention of claim 4 of the present invention having the above-mentioned structure, when the fire detector installed in the building outputs a fire detection signal, the elevator door forced closing unit detects whether a prescribed time has elapsed after the elevator door has completed the door opening operation, and After the specified time has elapsed, the elevator doors are forcibly closed. As a result, it is possible to prevent the smoke from entering the elevator passage when a fire occurs, and the elevator passage becomes a chimney that promotes the fire, thereby causing the fire to spread.

In addition, in the invention of claim 5 of the present invention, it is characterized in that there is a sensor abnormality detection unit that detects whether the detection sensor is abnormal and outputs an abnormality detection signal after detecting the abnormality, and stops the operation of the elevator based on the abnormality detection signal. The operation stops the unit.

In the invention of claim 5 of the present invention having the above structure, when the sensor abnormality detection means detects an abnormality in the detection sensor and outputs an abnormality detection signal, the operation stopping means stops the elevator. Thereby, it is possible to prevent an accident from occurring due to an abnormality of the detection sensor.

Invention effect

According to the present invention, it is possible to provide an elevator equipment equipped with a detection sensor for detecting a foreign object in a non-mechanical manner, thereby ensuring the safety required for an elevator entrance and exit. Therefore, for elevators and the like that are all surrounded by glass materials, it is possible to meet the customer's request for not installing safety boots that mechanically detect foreign objects for the sake of aesthetics, and at the same time to meet the guarantee of the elevator. This is a necessary condition for the safety of the users and the users of the building in which the elevator is located.

Description of drawings

Fig. 1 is a schematic structural view showing an embodiment of an elevator apparatus according to the present invention.

Fig. 2 is a flowchart showing the processing procedure of the elevator installation.

In the figure: 1 lift channel; 2 elevator car; 3 balance weight; 4 sling; 5 hoist; 6 driving part; 7 elevator door; 8 elevator car upper panel; 9 signal line; Door sensor; 12 fire detector; 13 microcomputer control part; 13a elevator operation basic control part; 13b door sensor control part.

Detailed ways

Embodiments of the elevator installation according to the present invention will be described below with reference to the drawings.

Fig. 1 is a schematic configuration diagram showing an embodiment of an elevator apparatus according to the present invention, and Fig. 2 is a flowchart showing a processing procedure of the elevator apparatus.

As shown in FIG. 1 , the elevator equipment of this embodiment has an elevator car 2 and a counterweight 3 that travel up and down in a hoistway 1 of a building, and a sling 4 connected to the elevator car 2 and the counterweight 3 . , the hoisting machine 5 on which the middle part of the sling 4 is wound and used to drive the elevator car 2 and the counterweight 3 , the upper part of the elevator car that is arranged on the elevator car 2 and opens and closes the elevator door 7 through the driving part 6 Disk 8, the elevator control panel 10 installed in the elevator mechanical room and connected to the winch 5 and the upper disk 8 of the elevator car through the signal line 9, and the detector installed on the elevator door 7 to detect foreign objects in a non-mechanical way and output foreign object detection signals Use a sensor, such as the sensor 11 for a multi-beam gate. In addition, a fire detection unit, such as a fire detector 12 , which detects a fire and outputs a fire detection signal through a signal line 9 is provided in the building.

And, in the elevator control panel 10, a microcomputer control part 13 is set, and in this microcomputer control part 13, an elevator operation basic control part 13a for controlling the lift of the elevator car 2 and the foreign object detection that can be output according to the multi-beam door sensor 11 are set. The signal controls the opening and closing of the elevator door 7 by the door sensor control section 13b. In addition, the elevator car position detecting unit capable of judging whether the elevator car 2 stops in the area where the elevator doors can be opened and closed is constituted by, for example, the elevator operation basic control section 13a. According to the continuous output or intermittent output of the foreign object detection signal, it is detected whether the elevator door 7 has passed the predetermined time after the door opening action, and after the predetermined time has passed, the foreign object detection signal is invalidated, and the elevator door 7 is forcibly closed. The elevator door forcibly closing unit, when the elevator door is forcibly closed, switches the speed of the elevator door 7 to a preset low speed elevator door speed regulating unit, when the elevator door is forcibly closed, reminds the passenger to pay attention to the arousal attention unit, And the operation stopping unit that stops the elevator according to the abnormality detection signal output by the sensor abnormality detection unit, for example, is composed of the door sensor control part 13b, and the door sensor control part 13b is based on the fire detection signal output from the fire detector 12 Detecting whether the elevator door 7 has passed the predetermined time after the door opening action is completed, if the predetermined time has passed, the elevator door 7 is forcibly closed.

In addition, the elevator car upper panel 8 forms a voice notification section for voice notification via a speaker (not shown) installed in the elevator car 2 .

In addition, the multi-beam door sensor 11 is composed of a beam irradiating portion 11a for irradiating a beam and a beam receiving portion 11b for receiving the beam emitted from the beam irradiating portion 11a, and has a sensor abnormality detection unit having a self-diagnostic function, It is possible to detect an abnormality of the multi-beam door sensor 11 and output an abnormality detection signal.

Next, the processing procedure of the elevator installation of this embodiment is demonstrated with reference to FIG. 2. FIG.

Microcomputer control part 13 judges in processing step S1 whether elevator car 2 stops in the area that elevator door can open and close, if elevator car 2 stops in the area outside the area that elevator door can open and close, as processing step S9 Show, make multi-beam door sensor 11 be in non-working state.

On the other hand, if it is judged in the processing step S1 that the elevator car 2 stops in the area where the elevator door can be opened and closed, then in the processing step S2, it is judged whether the multi-beam door sensor 11 has carried out its own abnormal detection, and whether An abnormality detection signal is output. At this time, if it is determined that the abnormality detection signal has been output, the elevator is stopped as shown in processing step S10. On the other hand, if it is judged in the processing step S2 that no abnormal detection signal is output, that is, when the state of the sensor 11 for the multi-beam door is normal, then in the processing step S3, the operation is judged based on the foreign object detection signal output by the sensor 11 for the multi-beam door. state. If it is judged that the multi-beam door sensor 11 has detected a foreign object, then in processing step S4, it is judged whether it is in the control operation state when it is in a fire according to the fire detection signal output by the fire detector 12; Start counting the continuous operation time or intermittent operation time of the multi-beam door sensor 11, if the foreign object detection time of the multi-beam door sensor 11 does not reach the predetermined time, for example, when it does not reach 60 seconds, as in processing step S11 As shown, continue to maintain the open state of the elevator door 7.

On the other hand, in the above-mentioned processing step S6, if it is judged that the foreign object detection time of the multi-beam door sensor 11 has reached the predetermined time, then as shown in the processing step S8, the foreign object detection signal is invalidated, and in the processing step S12 The elevator door 7 is forcibly closed, while the speed of the elevator door 7 is switched to a preset low speed, and the elevator door is being forced to close by a voice mode through the elevator car upper panel 8 by a speaker not shown.

In addition, if it is judged in the processing step S3 that the multi-beam door sensor 11 does not output a foreign object detection signal, that is, when no foreign object is detected, then in the processing step S5, it is judged that the operation state of the elevator door closing button is closed, and the elevator door is closed. When the button is operated, the elevator doors 7 are closed as shown in processing step S13.

And, if in the described processing step S4, judge according to the fire detection signal that fire detector 12 outputs and just be in fire control running state, then in processing step S7, judge whether elevator door 7 finishes the door-opening action and whether has passed through the preset time. The time is, for example, whether 20 seconds, which is set shorter than the continuous operation time or the intermittent operation time of the multi-beam door sensor 11 determined in the processing step S6, has elapsed. And when 20 seconds have passed after judging that the elevator door 7 has completed the door opening action, as shown in processing step S8, the foreign object detection signal is invalidated, and the elevator door 7 is forcibly closed in processing step S12, and the speed of the elevator door 7 is switched to Preset low speed, and inform the situation that the elevator doors are being forced to close in a voice mode by a loudspeaker not shown through the elevator car upper disc 8 . In addition, in the above-mentioned step S7, if the predetermined time has not yet been reached, as shown in the processing step S11, the elevator door 7 is kept in the door-open state.

According to this embodiment, when the continuous operation time or the intermittent operation time of the multi-beam door sensor 11 reaches a predetermined time, by forcing the elevator door 7 to close, it is possible to prevent the elevator door from being kept open due to malfunction or the like. As a result, the elevator service is stopped. On the other hand, when the elevator door is forced to close, the speed of the elevator door 7 is switched to a preset low speed, and at the same time, the passengers are reminded to pay attention, thereby preventing passengers getting on and off the elevator from interacting with The elevator doors collide. In addition, a voice reminder is provided through the loudspeaker to remind passengers to pay attention, so that passengers entering and leaving the elevator can easily grasp the situation that the elevator door 7 is closing, thereby avoiding collisions between passengers and the elevator door. In addition, in the control operation state in case of fire, after the elevator door 7 completes the door opening action, after a predetermined time has passed, the elevator door 7 is forced to close, on the one hand, it can be ensured that the passengers in the elevator car 2 can take refuge outside, and at the same time It can also prevent the smoke generated during a fire from entering the lift passage 1, thereby preventing the lift passage 1 from becoming a chimney that promotes the intensity of the fire. Furthermore, when an abnormality is detected in the sensor 11 for a multi-beam door, by stopping the elevator, it is possible to prevent accidents from occurring due to the abnormality of the sensor 11 for a multi-beam door. In this way, by installing a detection sensor that detects foreign objects in a non-mechanical way, it is possible to ensure the safety necessary for an elevator entrance and exit. Therefore, for elevators and the like that are all made of glass materials around them, it is possible to satisfy customers in terms of aesthetic appearance. It is hoped that there is no need to install safety boots that detect foreign objects in a mechanical way, while meeting the necessary conditions to ensure the safety of the users of the elevator and the users in the building where the elevator is located.

In addition, in this embodiment, the multi-beam door sensor 11 has been described as an example of the multi-beam door sensor 11 as a detection sensor that is installed on the elevator door 7 and detects foreign objects non-mechanically and outputs a foreign object detection signal. , is not limited to the multi-beam door sensor 11, but can use a photoelectric door sensor, an ultrasonic door sensor, a thermal door sensor, etc., as long as it can detect people and objects, it can be applied to the present invention. In addition, when the elevator door is forced to close, as a device to remind passengers to pay attention, the speaker is used as an example to give a voice reminder, but it is also possible to use a buzzer in the elevator car 2. By using A buzzer beeps to inform passengers that the elevator doors are being forcibly closed. In addition, in this embodiment, the predetermined time for counting when the sensor 11 for the multi-beam door is used for continuous or intermittent foreign object detection is set to 60 seconds, and the elevator door 7 under the control operation state in the event of a fire starts after the door opening action is completed. The specified time for counting is set to 20 seconds, but the present invention is not limited thereto, and such time can obviously be set arbitrarily.

Claims (5)

1. lift facility; Have elevator car position detecting unit, detecting sensor and control module; This elevator car position detecting unit can judge whether the lift car of lifting in the hoist trunk in building rests in the zone that elevator door can open and close; This detecting sensor is arranged on the elevator door; Detect foreign matter and output foreign body detection signal with non-mechanical means; This control module carries out the opening and closing control of described elevator door according to described foreign body detection signal; And control the lifting of described lift car; This lift facility is characterised in that

Have elevator door hard closing unit and elevator door speed regulation unit and the unit that calls attention to, this elevator door hard closing unit detects whether passed through the specified time of predesignating after described elevator door is finished the action of opening the door according to the continuous output or the interrupted output of described foreign body detection signal, and after having passed through the specified time of predesignating, make described foreign body detection signal invalid, and the described elevator door of hard closing, this elevator door speed regulation unit is when described elevator door hard closing, the speed of described elevator door is switched to predefined low speed, this calls attention to the unit when described elevator door hard closing, reminds the passenger to be noted.

2. lift facility as claimed in claim 1 is characterized in that, the described unit that calls attention to has the voice reminder part of carrying out voice reminder by loud speaker.

3. lift facility as claimed in claim 1 is characterized in that, the described unit that calls attention to has the buzzer phone that is arranged in the described lift car.

4. lift facility as claimed in claim 1, it is characterized in that, described elevator door hard closing unit is according to the fire detection signal that is arranged on the fire detector output in the building, detect and whether passed through the specified time of predesignating after described elevator door is finished the action of opening the door, and after having passed through the specified time of predesignating, force described elevator door cuts out.

5. lift facility as claimed in claim 1, it is characterized in that having the described detecting sensor of detection and whether make elevator operation stop element out of service unusually and at the sensor abnormality detecting unit that detects unusual back output abnormality detection signal and according to described anomaly detection signal.

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