Automatic door opening and closing control circuit for platform door

Abstract

The utility model provides an automatic door opening and closing control circuit for a platform door, which comprises a door opening gear switch, a door closing gear switch, a door opening relay, a door closing relay, a door opening timer and a door closing timer. When a worker switches the gear to the detection position, the platform door can be automatically opened and closed, station service personnel only need to observe the state of opening and closing the door, other operations are not needed, and the station service personnel switch to the prohibition position after a certain time, so that the workload of the worker is greatly reduced, the working efficiency is improved, and the probability of operation errors is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of platform door switch control, in particular to an automatic switch control circuit for platform doors. Background Art

[0002] The Integrated Backup Panel is installed in the station control room of each station. It is a large operation panel with many square operation buttons. The operation buttons are directly connected to the on-site equipment through the control module, including signals, platform doors, escalators, environmental control, fire fans, automatic ticket vending and checking, access control and other systems. When the station-level systems cannot be operated through the monitoring system, it will serve as a backup operation means for the station to control the on-site equipment.

[0003] For the platform door system, all stations on the line need to test the opening and closing functions of the platform doors in the morning before the vehicles officially start running. The stations on the earlier lines do not have the automatic opening and closing test function of the platform doors. Station service personnel are required to manually operate the integrated backup panel in the vehicle control room. First, turn on the operation permission switch on the integrated backup panel, then manually click the door opening button. After all the doors are opened, manually click the door closing button. After the manual opening and closing of the doors reaches the specified number of times, turn the operation button on the integrated backup panel to the prohibited position, and then perform the same operation on the other side of the platform. It is cumbersome to operate the up and down platform doors more than ten or even twenty times every morning. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is: how to provide a platform door automatic opening and closing control circuit to optimize the existing electrical wiring lines to realize the function of automatic opening and closing detection of the platform door, thereby greatly reducing the workload of the staff and the operation error rate.

[0005] To achieve the above object, the utility model proposes an automatic door opening and closing control circuit for a platform door, which includes a door opening control unit and a door closing control unit, wherein the door opening control unit includes a door opening position switch, a door opening relay, and a door opening timer, and the door closing control unit includes a door closing position switch, a door closing relay, and a door closing timer;

[0006] The door opening relay and the door opening timer are respectively connected to a switching power supply, one end of the door opening gear switch is connected to the switching power supply, and the other end of the door opening gear switch is connected to the door opening relay and the door opening timer, and the working state of the door opening gear switch includes an enabling position and a disabling position, wherein the contact of the door opening relay is a normally closed contact, and when the working state of the door opening gear switch is the enabling position, the contact of the door opening relay is closed due to power failure, and the contact of the door opening timer is closed within a preset door opening time period after power is supplied and is disconnected after the preset door opening time period has passed, and when the contact of the door opening timer is closed, the door opening control unit transmits a door opening signal, and when the contact of the door opening timer is disconnected, the door opening control unit does not transmit a door opening signal;

[0007] The door closing relay and the door closing timer are respectively connected to a switching power supply, two ends of the door closing position switch are connected to the switching power supply, and the other two ends of the door closing position switch are connected to the door closing relay and the door closing timer, and the working state of the door closing position switch includes an enabling position and a disabling position, wherein the contact of the door closing relay is a normally closed contact, and when the working state of the door closing position switch is the enabling position, the contact of the door closing relay is closed due to power failure, and the contact of the door closing timer is closed within a preset door closing time period after power is supplied and is disconnected after the preset door closing time period has passed, and when the contact of the door closing timer is closed, the door closing control unit transmits a door closing signal, and when the contact of the door closing timer is disconnected, the door closing control unit does not transmit a door closing signal;

[0008] Wherein, when the door opening position switch is in the allowing position, the door closing position switch is in the allowing position after a preset interval time period, and when the contacts of the door opening timer are disconnected, the contacts of the door closing timer are closed, and the door closing control unit transmits a door closing signal; when the contacts of the door opening timer are closed, the contacts of the door closing timer are disconnected, and the door opening control unit transmits a door opening signal.

[0009] Furthermore, the preset door opening time or the preset door closing time period ranges from 6s to 15s.

[0010] Furthermore, the door opening relay and the door closing relay are independently provided.

[0011] Furthermore, the door opening timer and the door closing timer are set independently.

[0012] Compared with the related art, the utility model proposes an automatic door opening and closing control circuit for platform doors, which has the beneficial effects of: it includes a door opening gear switch, a door closing gear switch, a door opening relay, a door closing relay, a door opening timer, and a door closing timer. After optimizing and transforming the original line, and adding an automatic door opening and closing function switch for the platform door in the platform door area, when the staff turns the gear to the detection position, the platform door can automatically open and close the door. The station staff only needs to observe the door opening and closing status without performing other operations, and can turn it to the prohibition position after a certain period of time, which greatly reduces the workload of the staff, improves work efficiency, and reduces the chance of operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a door opening control unit of an automatic door opening and closing control circuit of a platform door in an embodiment of the utility model;

[0014] Figure 2 The present invention is a schematic diagram of a door closing control unit of an automatic door opening and closing control circuit for platform doors in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] See also Figure 1 and 2 As shown, the utility model proposes a platform door automatic opening and closing control circuit, which includes a door opening control unit and a door closing control unit. Specifically,

[0017] The door opening control unit 1 includes a door opening position switch 11, a door opening relay 21, and a door opening timer 31. The door closing control unit 2 includes a door closing position switch 12, a door closing relay 22, and a door closing timer 32. The door opening relay 21 and the door closing relay 22 are independently set, and the door opening timer 31 and the door closing timer 32 are independently set.

[0018] The door opening relay 21 and the door opening timer 31 are respectively connected to the switching power supply 13, one end of the door opening gear switch 11 is connected to the switching power supply, and the other end of the door opening gear switch 11 is connected to the door opening relay 21 and the door opening timer 31. The working state of the door opening gear switch 11 includes an enabling position and a prohibiting position, wherein the contact of the door opening relay 21 is a normally closed contact. When the working state of the door opening gear switch 11 is the enabling position, the contact of the door opening relay 21 is closed due to power failure, and the contact of the door opening timer 31 is closed within the preset door opening time period after power is supplied and is disconnected after the preset door opening time period. When the contact of the door opening timer 31 is closed, the door opening control unit transmits a door opening signal.

[0019] The door closing relay 22 and the door closing timer 32 are respectively connected to the switching power supply 13, two ends of the door closing position switch 12 are connected to the switching power supply, and the other two ends of the door closing position switch 12 are connected to the door closing relay 22 and the door closing timer 32. The working state of the door closing position switch 12 includes an allowed position and a prohibited position, wherein the contact of the door closing relay 22 is a normally closed contact. When the working state of the door closing position switch 12 is the allowed position, the contact of the door closing relay 22 is closed due to power failure, and the contact of the door closing timer 32 is closed within the preset time period for door closing after power is supplied and is disconnected after the preset time period for door closing. When the contact of the door closing timer 32 is closed, the door closing control unit transmits a door closing signal.

[0020] The door closing position switch 21 is in the permission position after a preset interval time period when the door opening position switch 11 is in the permission position, that is, the operator first turns on the door opening position switch 11 to the permission position, and then turns on the permission position of the door closing position switch 21 after a preset interval time period. The preset interval time period, the door opening preset time period and the door closing preset time period are the same, and the range of the door opening preset time or the door closing preset time period is 6s-15s.

[0021] In this way, the staggered actions of the door opening timer 31 and the door closing timer 32 can be realized. When the contacts of the door opening timer 31 are disconnected, the contacts of the door closing timer 32 are closed, and the door closing control unit transmits a door closing signal; when the contacts of the door opening timer 31 are closed, the contacts of the door closing timer 32 are disconnected, and the door opening control unit transmits a door opening signal.

[0022] Furthermore, the door opening timer 31 is disconnected after a preset door opening time period, and then closed again after a door opening time period, thereby realizing a reciprocating opening or closing action with a door opening time period as a time period, and the door opening timer 32 is disconnected after a preset door closing time period, and then closed again after a door opening and closing time period, thereby realizing a reciprocating opening or closing action with a door closing time period as a time period.

[0023] When the door opening position switch 11 is turned to the permission position, the door opening relay 21 coil is de-energized, wherein the door opening relay 21 is a normally closed contact and resets and closes. Since the door opening timer 31 contact is a normally closed point, the door opening signal is connected, the door automatically opens, and the door opening timer 31 is energized and starts working. Within the set time, the contact of the door opening timer 31 changes from normally closed to normally open at the end of the timing, and the door opening signal is disconnected. At the same time, another set of normally open contacts is closed, and the door closing signal is connected, which is maintained within the set time, and returns to the open state after the timing ends. The door opening and closing control is repeated according to this rule.

[0024] The technical solution of the present application comprises a door opening position switch 11, a door closing position switch 12, a door opening relay 21, a door closing relay 22, a door opening timer 31 and a door closing timer 32. After optimizing and reconstructing the original line, and adding an automatic door opening and closing function switch for the platform door in the platform door area, when the staff turns the gear to the detection position, the platform door can be automatically opened and closed. The station staff only needs to observe the door opening and closing status without performing other operations, and can turn it to the prohibition position after a certain period of time, which greatly reduces the workload of the staff, improves work efficiency, and reduces the chance of operational errors.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A platform door automatic opening and closing control circuit, characterized in that: It includes a door opening control unit and a door closing control unit, wherein the door opening control unit includes a door opening gear switch, a door opening relay, and a door opening timer, and the door closing control unit includes a door closing gear switch, a door closing relay, and a door closing timer; The door opening relay and the door opening timer are respectively connected to a switching power supply, one end of the door opening gear switch is connected to the switching power supply, and the other end of the door opening gear switch is connected to the door opening relay and the door opening timer, and the working state of the door opening gear switch includes an enabling position and a disabling position, wherein the contact of the door opening relay is a normally closed contact, and when the working state of the door opening gear switch is the enabling position, the contact of the door opening relay is closed due to power failure, and the contact of the door opening timer is closed within a preset door opening time period after power is supplied and is disconnected after the preset door opening time period has passed, and when the contact of the door opening timer is closed, the door opening control unit transmits a door opening signal, and when the contact of the door opening timer is disconnected, the door opening control unit does not transmit a door opening signal; The door closing relay and the door closing timer are respectively connected to a switching power supply, two ends of the door closing position switch are connected to the switching power supply, and the other two ends of the door closing position switch are connected to the door closing relay and the door closing timer, and the working state of the door closing position switch includes an enabling position and a disabling position, wherein the contact of the door closing relay is a normally closed contact, and when the working state of the door closing position switch is the enabling position, the contact of the door closing relay is closed due to power failure, and the contact of the door closing timer is closed within a preset door closing time period after power is supplied and is disconnected after the preset door closing time period has passed, and when the contact of the door closing timer is closed, the door closing control unit transmits a door closing signal, and when the contact of the door closing timer is disconnected, the door closing control unit does not transmit a door closing signal; Wherein, when the door opening position switch is in the allowing position, the door closing position switch is in the allowing position after a preset interval time period, and when the contacts of the door opening timer are disconnected, the contacts of the door closing timer are closed, and the door closing control unit transmits a door closing signal; when the contacts of the door opening timer are closed, the contacts of the door closing timer are disconnected, and the door opening control unit transmits a door opening signal.

2. The platform door automatic opening and closing control circuit as claimed in claim 1, characterized in that: The range of the door opening preset time or the door closing preset time period is 6s-15s.

3. The platform door automatic opening and closing control circuit according to claim 1, characterized in that: The door opening relay and the door closing relay are independently arranged.

4. The platform door automatic opening and closing control circuit according to claim 1, characterized in that: The door opening timer and the door closing timer are set independently.

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