CN107140496B - Vertical elevator pit overhauling and resetting device - Google Patents
Vertical elevator pit overhauling and resetting device Download PDFInfo
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- CN107140496B CN107140496B CN201710433117.2A CN201710433117A CN107140496B CN 107140496 B CN107140496 B CN 107140496B CN 201710433117 A CN201710433117 A CN 201710433117A CN 107140496 B CN107140496 B CN 107140496B
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a pit maintenance resetting device of a vertical elevator, which comprises a power supply device, a communication device, a safety device, a pit maintenance resetting device, an alarm device and a control device, wherein the communication device is used for communicating with the communication device; the control device is electrically connected with the alarm device and used for controlling the action of the alarm device, and when the elevator is in a normal state and is not at the bottommost floor, if the safety device detects that the bottommost door of the elevator is in an open state, the alarm device is started; adopt the perpendicular elevator pit to overhaul resetting means of above-mentioned structure can be in normal condition and not at minimum floor at the elevator, and maintainer forgets action pit and overhauls reset switch and directly open when minimum layer door gets into pit operation maintenance device, provides alarm signal to remind maintainer to forget action pit and overhaul resetting means, ensure its safety and can correctly operate the pit and overhaul.
Description
Technical Field
The invention relates to the technical field of elevator maintenance, in particular to a vertical elevator pit maintenance resetting device capable of avoiding potential safety hazards to a maintainer.
Background
In the elevator maintenance process, the elevator overhaul operation is a common operation mode in the elevator maintenance process. When the pit inspection switch needs to be operated, the pit inspection reset switch must be firstly actuated to ensure the life safety when maintenance personnel enter the pit from the lowest landing door and correctly operate the pit inspection. But present elevator has not reminded the maintenance personal and operates pit maintenance switch earlier according to operation regulation before getting into the pit and make the elevator be in maintenance state, if the maintenance personal forgets action pit and overhauls reset switch, directly opens the elevator and when getting into pit operation maintenance device bottommost layer door, can bring the potential safety hazard for the maintenance personal.
Disclosure of Invention
The invention aims to provide a vertical elevator pit overhauling and resetting device, which sends an alarm to remind maintenance personnel of timely actuating an elevator resetting switch when an elevator is not reset according to an operation rule before the maintenance personnel of the elevator enters an elevator pit so as to overcome the defects of the technical problems.
In order to achieve the aim, the invention discloses a pit maintenance resetting device of a vertical elevator, which comprises a power supply device, a communication device, a safety device, a pit maintenance resetting device, an alarm device and a control device, wherein the communication device is connected with the safety device;
the power supply device is used for providing a direct current power supply for the communication device, the alarm device and the control device;
the communication device is respectively electrically connected with the elevator main control board and the alarm device and is used for monitoring the running state and the floor of the elevator;
the safety device is used for detecting the opening and closing state of the bottommost door of the elevator;
the pit overhauling reset device comprises a reset circuit for resetting the elevator and a reset switch for controlling the reset circuit;
the control device is electrically connected with the alarm device and used for controlling the action of the alarm device, and when the elevator is in a normal state and is not positioned at the bottommost floor, if the safety device detects that the door at the bottommost floor of the elevator is in an open state, the alarm device is started.
Compared with the prior art, the invention discloses a vertical elevator pit maintenance resetting device, which can provide an alarm signal to remind a maintainer to timely actuate a pit maintenance resetting switch when the maintainer forgets to actuate the pit maintenance resetting switch and directly opens a lowest door of an elevator to enter the pit operation maintenance device and the elevator is in a normal state and is not at the lowest floor by arranging a controlled alarm device, so that the safety of the elevator and the correct operation of pit maintenance are ensured.
Preferably, the safety device comprises a door lock switch, and the door lock switch is connected between the control device and the reset switch in series and is opened and closed along with the opening and closing of the bottommost door of the elevator.
Preferably, the reset switch comprises four independent switch point positions, namely a first switch point position, a second switch point position, a third switch point position and a fourth switch point position, and the reset switch is electrically connected with the reset circuit through the third switch point position and the fourth switch point position, so that the operation is convenient, and the probability of error control is reduced.
Preferably, the control device comprises a first control switch and a second control switch connected in series with the alarm device; the first control switch is a normally open control switch and acts according to the output signal of the communication device; the second control switch is a normally closed control switch, and acts according to the actions of the reset switch and the door lock switch.
Preferably, the control device further includes a first relay for controlling the first control switch, a power end of the first relay is connected to a negative electrode of the power supply device, another power end of the relay is electrically connected to a positive electrode of the power supply device through an electronic switch, and the electronic switch is electrically connected to the communication device and controlled by the communication device.
Preferably, the control device further includes a second relay for controlling the second control switch, a power end of the second relay is electrically connected to the negative electrode of the power supply device, another power end of the second relay is electrically connected to one end of the first switch point location and one end of the second switch point location of the reset switch, the other end of the first switch point location is electrically connected to the positive electrode of the power supply device, the other end of the second switch point location is electrically connected to the positive electrode of the power supply device through the door lock switch, the first switch point location is normally open, and the second switch point location is normally closed.
Preferably, the control device further comprises a third control switch connected in series with the second switch point and connected in parallel with the door lock switch, the third control switch is controlled by the first relay and is a normally closed switch, and the third control switch is arranged to avoid false alarm caused by short circuit of the first control switch under the condition of no potential safety hazard.
Preferably, the communication device comprises a MODBUS communication module.
Preferably, the power supply device is a switching power supply of the elevator, so that an additional power supply is not needed, and the cost is saved.
The invention also discloses another exemplary vertical elevator pit overhauling and resetting device, which comprises a communication device, a resetting device, an alarming device and a control device;
the communication device is respectively electrically connected with the elevator main control board and the control device and is used for controlling the action of the control device according to the running state and the floor where the elevator is located;
the reset device comprises a reset circuit for resetting the elevator and a reset switch for controlling the reset circuit;
the control device is electrically connected with the alarm device and used for controlling the action of the alarm device, and when the elevator is in a normal state and not at the bottommost floor, if the bottommost door of the elevator is in an open state, the alarm device is started.
Compared with the prior art, the invention discloses a vertical elevator pit maintenance resetting device, which can provide an alarm signal to remind a maintainer to timely actuate a pit maintenance resetting switch when the maintainer forgets to actuate the pit maintenance resetting switch and directly opens a lowest door of an elevator to enter the pit operation maintenance device and the elevator is in a normal state and is not at the lowest floor by arranging a controlled alarm device, so that the safety of the elevator and the correct operation of pit maintenance are ensured.
Preferably, the control device comprises a first control switch and a second control switch connected in series with the alarm device; the first control switch is a normally open type control switch, and is closed when the elevator is in a normal state and is not at the bottommost layer; the second control switch is a normally closed control switch, and is opened when the bottommost layer door of the elevator is closed or the reset switch acts.
Preferably, the control device further comprises a first relay for controlling the first control switch.
Preferably, the control device further comprises a second relay for controlling the second control switch.
Preferably, the communication device is a MODBUS communication module.
The invention also discloses another exemplary vertical elevator pit maintenance resetting device which comprises an alarm device, wherein when the bottommost door of the elevator is in an open state, if the elevator is in a normal state and is not positioned at the bottommost floor, the alarm device gives an alarm.
Compared with the prior art, the vertical elevator pit overhauling and resetting device disclosed by the invention has the advantages that through the arrangement of the controlled alarm device, when the elevator is in a normal state and is not at the lowest floor, the maintainer forgets to act the pit overhauling and resetting switch and directly opens the lowest floor door of the elevator to enter the pit operation and overhauling device, an alarm signal is provided, and in other cases, the alarm is not given, so that the maintainer is reminded to act the pit overhauling and resetting switch in time, the safety of the elevator is ensured, the pit overhauling can be correctly operated, and in addition, the alarm and the false alarm are not generated under the condition that no potential safety hazard exists.
Preferably, the alarm device further comprises a control device for controlling the alarm device, wherein the control device comprises a first control switch and a second control switch which are connected with the alarm device in series; the first control switch is a normally open type control switch, and is closed when the elevator is in a normal state and is not at the bottommost layer; the second control switch is a normally-closed control switch, and is opened when the lowest layer door of the elevator is closed or the elevator is reset.
Preferably, the control device further comprises a first relay for controlling the first control switch.
Preferably, the control device further comprises a second relay for controlling the second control switch.
Drawings
Fig. 1 is a schematic structural view of a vertical elevator pit inspection and restoration apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic circuit connection diagram of the vertical elevator pit inspection resetting device of fig. 1.
Detailed Description
In order to explain the technical contents, structural features, principles of implementation, and objects and effects achieved by the present invention in detail, the following description is made in conjunction with the accompanying drawings.
Fig. 1 shows a vertical elevator pit maintenance resetting device according to an exemplary embodiment of the present invention, which includes an alarm device (e.g., an alarm, a buzzer, etc.), and when a bottommost door of an elevator is opened to enter a pit, if a pit maintenance resetting switch is not actuated, the elevator is in a normal state (i.e., in a normal use state), and is not at a bottommost floor, the alarm device gives an alarm to remind a serviceman to actuate the pit maintenance resetting switch in time, so that the elevator enters a maintenance state and is temporarily out of service, thereby ensuring the safety of the elevator serviceman. And under the condition that potential safety hazards do not exist, for example, the bottommost door of the elevator is not opened or the elevator is positioned at the bottommost floor, or the elevator is in a fault state, an overhaul state and the like, the alarm device does not give an alarm, and the reliability of the vertical elevator pit overhaul reset device is effectively ensured.
In another embodiment of the vertical elevator pit inspection resetting device, as shown in fig. 1 and 2, the device further comprises a control device for controlling the alarm device. In this embodiment, the control means comprises a first control switch K1 and a second control switch K2 connected in series with said alarm means (in this embodiment a buzzer JN). First control switch K1 is normal open type control switch, and when the elevator was in normal condition and not at the bottom, first control switch K1 closed, all was in the open mode under other circumstances. The second control switch K2 is a normally-closed control switch, and acts according to the maintenance reset action of the elevator and the opening and closing state of the bottommost door of the elevator, when the bottommost door of the elevator is closed or the elevator is reset, the second control switch K2 is opened, and is in a closed state under other conditions. Under the condition that the elevator has no potential safety hazard, namely the elevator is in an abnormal use state or in a normal use state but is in the bottommost layer, the first control switch K1 is in an open state, the current loop of the alarm device is disconnected, the alarm device cannot give an alarm, when the door of the bottommost layer of the elevator is opened, if the elevator is in a normal state and is not in the bottommost layer, if the elevator is not reset, the potential safety hazard exists in a pit, under the condition, the first control switch K1 responds, the opening is changed into the closing, the second control switch K2 does not respond, the closed state is maintained, the current loop of the alarm device is conducted, and the alarm device gives an alarm. In this embodiment, the first control switch K1 is selectively controlled by the first relay J1, the second control switch K2 is selectively controlled by the second relay J2, and the relay is selected as a control element, so that the control range can be conveniently expanded, and the signal sensitivity is high.
In another embodiment of the vertical elevator pit inspection resetting device, the resetting device and the communication device are further included. The resetting device comprises a resetting circuit for overhauling and resetting the elevator and a resetting switch AK electrically connected with the resetting circuit, and the elevator enters an overhauling and resetting state by actuating the resetting switch AK. The communication device is electrically connected with the elevator main control board (not shown in the figure) and the control device respectively, the real-time running state and the floor where the elevator is located are obtained from the elevator main control board, when the elevator is in a normal state and is not located at the bottommost floor, the communication device controls the control device to act, and specifically, the first relay J1 is controlled to be attracted, so that the first control switch K1 is closed, the second relay J2 is not attracted under the opening state of the bottommost door of the elevator, the second control switch K2 is in a closed state, and the alarm device gives an alarm.
In another embodiment of the vertical elevator pit inspection resetting device, the vertical elevator pit inspection resetting device further comprises a power supply device and a safety device. And the safety device is used for detecting the opening and closing state of the bottommost door of the elevator, and comprises a door lock switch MJS which is connected between the control device and the reset switch in series in the embodiment.
In this embodiment, the reset switch AK includes four groups of switch points (or multiple groups of switch points as needed), which are the first switch points 1 and 2, the second switch points 3 and 4, the third switch points 5 and 6, and the fourth switch points 7 and 8, respectively. The reset circuit is connected with the third switch point and the fourth switch point, and the reset circuit is started when the reset switch AK acts. The first switch point positions 1 and 2 are arranged between the second relay J2 and the power supply, and the second switch point positions 3 and 4 are arranged between the second relay J2 and the door lock switch MJS. In the present embodiment, the specific connection manner of the first relay J1 and the second relay J2 is as follows: one power end of the first relay J1 is connected with a negative electrode VCC-of the power supply device, the other power end of the first relay J1 is electrically connected with a positive electrode VCC + of the power supply device through an electronic switch KM, and the electronic switch KM is electrically connected with the communication device and controlled by the communication device; one power end of the second relay J2 is electrically connected to the negative electrode VCC-of the power supply device, the other power end of the second relay J2 is electrically connected to the first switch point 1 and the second switch point 4 of the reset switch AK, the first switch point 2 is electrically connected to the positive electrode VCC + of the power supply device, the second switch point 3 is electrically connected to the positive electrode VCC + of the power supply device through the door lock switch MJS, the first switch points 1 and 2 are normally open, and the second switches 3 and 4 are normally closed.
When the elevator is in a normal state and is not at the bottommost floor, the communication device controls the electronic switch KM to be closed, the first relay J1 is electrified to be attracted, and therefore the first control switch K1 is closed. At the moment, if the lowest door of the elevator is opened, the door lock switch MJS is in an open state, the reset switch AK does not act, the first switch point positions 1 and 2 are in an open state, the second switch point positions 3 and 4 are in a closed state, the second relay J2 is not electrified and does not attract, so that the second control switch K2 is kept in the closed state, and further, the current loop of the alarm device is conducted to send an alarm signal. When an alarm signal is sent out, the elevator is reset by the action reset switch AK to enter a maintenance state, the first switch point positions 1 and 2 are closed, the second switch point positions 3 and 4 are opened, the second relay J2 is electrified and attracted, and therefore the second control switch K2 is changed from closed to open, the current loop of the alarm device is disconnected, and the alarm is finished.
When the elevator is in a normal state and is not at the bottommost floor, the communication device controls the electronic switch KM to be closed, the first relay J1 is electrified to be attracted, and therefore the first control switch K1 is closed. At the moment, if the bottommost door of the elevator is not opened, the door lock switch MJS is in a closed state, the second relay J2 is electrified and attracted no matter whether the reset switch AK is operated or not, so that the second control switch K2 is changed from closed to open, and the alarm device does not give an alarm.
When the elevator is in a fault state, the communication device controls the electronic switch KM to be in an open state, the first relay J1 is not attracted, the first control switch K1 is in the open state, and the alarm device cannot give an alarm.
When the elevator is in a normal state and the elevator is at the bottommost layer, no potential safety hazard exists, so the communication device controls the electronic switch KM to be in an open state, the first relay J1 is not attracted, the first control switch K1 is in a card punching state, and the alarm device cannot give an alarm.
When the reset switch AK is in an action state and the bottommost door of the elevator is opened, the door lock switch MJS is disconnected, the first switch point positions 1 and 2 are changed into closed by opening, the second switch point positions 3 and 4 are changed into open by closing, the second relay J2 is electrified and sucked, and the second control switch K2 is changed into open by closing, so that the current loop of the alarm device is disconnected, and the condition of false alarm cannot occur.
In order to avoid false alarm caused by short circuit of the first control switch K1 under the condition of no potential safety hazard, the control device of the vertical elevator pit maintenance resetting device in another embodiment of the invention also comprises a third control switch K3 which is connected with the second switch point 3 and 4 in series and connected with the door lock switch MJS in parallel, namely one end of the third control switch K3 is connected with the anode VCC + of a power supply device, the other end is connected between the door lock switch MJS and the second switch point 3, and the third control switch K3 is controlled by the first relay J1 and is a normally closed switch. Under the condition that there is not the potential safety hazard, also need not to trigger alarm device under the condition that does not have action elevator reset switch AK when opening elevator bottommost layer door, lock switch MJS opens this moment, electronic switch KM opens, first switch point location 1, 2 are opened, second switch point location 3, 4 are closed, but if first control switch K1 short circuit also probably will cause alarm device's spurious triggering this moment, because third control switch K3 is the type switch that closes, consequently lead to second relay J2 to get electric actuation under this kind of condition, and then second control switch K2 becomes to open by the closure, alarm device's current loop is broken off, has avoided spurious triggering.
In another preferred embodiment of the pit overhauling and resetting device of the vertical elevator, the communication device comprises an MODBUS communication module, the precision is high, the matching performance is good, the power supply device adopts a switching power supply of the elevator, no additional power supply is needed, and the production cost is saved.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (10)
1. A pit maintenance resetting device of a vertical elevator is characterized by comprising a power supply device, a communication device, a safety device, a pit maintenance resetting device, an alarm device and a control device;
the power supply device is used for providing a direct current power supply for the communication device, the alarm device and the control device;
the communication device is respectively electrically connected with the elevator main control board and the alarm device and is used for monitoring the running state and the floor of the elevator;
the safety device is used for detecting the opening and closing state of the bottommost door of the elevator;
the pit overhauling reset device comprises a reset circuit for resetting the elevator and a reset switch for controlling the reset circuit;
the control device is electrically connected with the alarm device and used for controlling the action of the alarm device, and when the elevator is in a normal state and is not at the bottommost floor, if the safety device detects that the bottommost door of the elevator is in an open state, the alarm device is started;
the safety device comprises a door lock switch which is connected between the control device and the reset switch in series and is opened and closed along with the opening and closing of the door at the bottommost layer of the elevator;
the reset switch comprises four groups of independent switch point positions, namely a first switch point position, a second switch point position, a third switch point position and a fourth switch point position, and is electrically connected with the reset circuit through the third switch point position and the fourth switch point position;
the control device comprises a first control switch and a second control switch which are connected with the alarm device in series; the first control switch is a normally open control switch and acts according to the output signal of the communication device; the second control switch is a normally closed control switch, and acts according to the actions of the reset switch and the door lock switch.
2. The vertical elevator pit maintenance resetting apparatus according to claim 1, wherein the control apparatus further comprises a first relay for controlling the first control switch, one power terminal of the first relay is connected to the negative terminal of the power supply apparatus, the other power terminal of the first relay is electrically connected to the positive terminal of the power supply apparatus through an electronic switch, and the electronic switch is electrically connected to the communication apparatus and controlled by the communication apparatus.
3. The vertical elevator pit maintenance resetting device according to claim 2, wherein the control device further comprises a second relay controlling the second control switch, one power end of the second relay is electrically connected to the negative electrode of the power supply device, the other power end of the second relay is electrically connected to one end of the first switch point and one end of the second switch point of the reset switch, the other end of the first switch point is electrically connected to the positive electrode of the power supply device, the other end of the second switch point is electrically connected to the positive electrode of the power supply device through the door lock switch, the first switch point is normally open, and the second switch point is normally closed.
4. The vertical elevator pit maintenance resetting device according to claim 3, wherein the control device further comprises a third control switch connected in series with the second switch point and in parallel with the door lock switch, and the third control switch is controlled by the first relay and is a normally closed switch.
5. The vertical elevator pit maintenance resetting apparatus of claim 1, wherein the communication device comprises a MODBUS communication module.
6. The vertical elevator pit maintenance resetting apparatus according to claim 1, wherein the power supply apparatus is a switching power supply of the elevator.
7. A vertical elevator pit overhauls the reset attachment, characterized by that, including communicator, reset device, alarm device, safety device and controlling device;
the communication device is respectively electrically connected with the elevator main control board and the control device and is used for controlling the action of the control device according to the running state and the floor where the elevator is located;
the reset device comprises a reset circuit for resetting the elevator and a reset switch for controlling the reset circuit;
the control device is electrically connected with the alarm device and used for controlling the action of the alarm device, and when the elevator is in a normal state and is not at the bottommost floor, if the bottommost door of the elevator is in an open state, the alarm device is started;
the safety device comprises a door lock switch which is connected between the control device and the reset switch in series and is opened and closed along with the opening and closing of the bottommost door of the elevator;
the reset switch comprises four groups of independent switch point positions, namely a first switch point position, a second switch point position, a third switch point position and a fourth switch point position, and is electrically connected with the reset circuit through the third switch point position and the fourth switch point position;
the control device comprises a first control switch and a second control switch which are connected with the alarm device in series; the first control switch is a normally open type control switch, and is closed when the elevator is in a normal state and is not at the bottommost layer; the second control switch is a normally closed control switch, and is opened when the bottommost layer door of the elevator is closed or the reset switch acts.
8. The vertical elevator pit service resetting apparatus of claim 7, wherein the control apparatus further comprises a first relay controlling the first control switch.
9. The vertical elevator pit service resetting apparatus of claim 7, wherein the control apparatus further comprises a second relay controlling the second control switch.
10. The vertical elevator pit maintenance resetting device of claim 7, wherein the communication device is a MODBUS communication module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710433117.2A CN107140496B (en) | 2017-06-09 | 2017-06-09 | Vertical elevator pit overhauling and resetting device |
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| CN201710433117.2A CN107140496B (en) | 2017-06-09 | 2017-06-09 | Vertical elevator pit overhauling and resetting device |
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| CN107140496B true CN107140496B (en) | 2023-04-07 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110077929A (en) * | 2019-05-22 | 2019-08-02 | 快意电梯股份有限公司 | Install the shallow pit electrical system of elevator additional |
| CN110861989B (en) * | 2019-11-14 | 2024-07-16 | 宁波宏大电梯有限公司 | Elevator audible and visual alarm control switching circuit |
| CN115009946B (en) * | 2022-06-17 | 2024-01-30 | 永大电梯设备（中国）有限公司 | Protection method for elevator pit maintenance and restoration |
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| CN107140496A (en) | 2017-09-08 |
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