CN220098202U

CN220098202U - Linkage type button elevator bypass circuit

Info

Publication number: CN220098202U
Application number: CN202321378941.XU
Authority: CN
Inventors: 陈颖杰
Original assignee: Ningbo Hongda Elevator Co Ltd
Current assignee: Ningbo Hongda Elevator Co Ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2023-11-28
Anticipated expiration: 2033-06-01

Abstract

The utility model discloses a linkage button elevator bypass circuit, which relates to the technical field of elevator safety and comprises: the first button is used for outputting a hall door bypass signal to the elevator main board in a triggering state; the second button is used for outputting an emergency electric signal to the elevator main board in a triggering state; the third button is used for outputting a car door bypass signal to the elevator main board in a trigger state; the elevator main board is used for controlling the elevator to enter a corresponding running state according to the received signal; the first button to the third button adopt key switches, and when one button is pressed down to enter a trigger state, the other two buttons enter a reset state under the linkage action of the key switches. The elevator control signal transmission system realizes safe and effective transmission of elevator control signals meeting the design requirements of landing doors and car door bypass devices through a simple control loop combined with a key switch mechanism.

Description

Linkage type button elevator bypass circuit

Technical Field

The utility model relates to the technical field of elevator safety, in particular to a linkage button elevator bypass circuit.

Background

The elevator landing door and car door bypass device should meet the following requirements: 1) Marking "bypass" words on or near landing door and car door bypass devices, and marking the "bypass" or "off" status of the bypass devices; 2) The landing door closing contact, landing door locking contact, car door closing contact and car door locking contact can be bypassed; but cannot bypass the landing door and the car door contacts at the same time; for manual landing doors, the landing door closing contacts and landing door locking contacts cannot be bypassed at the same time; 3) Allowing the car to run after the bypass car door closes the contacts when the independent monitoring signal confirms that the car door is in the closed position; the requirement also applies to the case where the door closing contacts and the door lock contacts are in common. In order to achieve these functions with a simpler structure and avoid safety accidents caused by short circuit of the door lock, a safe transmission mode of elevator signals which are not interfered with each other is needed.

Disclosure of Invention

In order to realize effective transmission and control under the condition that elevator safety control signals are not interfered with each other, the utility model provides a linkage type button elevator bypass circuit, which comprises:

the first button is used for outputting a hall door bypass signal to the elevator main board in a triggering state;

the second button is used for outputting an emergency electric signal to the elevator main board in a triggering state;

the third button is used for outputting a car door bypass signal to the elevator main board in a trigger state;

the elevator main board is used for controlling the elevator to enter a corresponding running state according to the received signal;

the first button to the third button adopt key switches, and when one button is pressed down to enter a trigger state, the other two buttons enter a reset state under the linkage action of the key switches.

Further, the first button to the third button are double-pole switches, and comprise a first switch and a second switch which are linked.

Further, one end of the first switch is connected with a signal corresponding to the current button, the other end of the first switch is connected with a signal input port corresponding to the elevator main board, one end of the second switch is grounded through a light emitting diode, and the other end of the second switch counts in working voltage.

Further, a first switch in the double-pole switch is used for controlling corresponding signals to be output to an elevator main board, and a second switch in the double-pole switch is used for displaying the current button working state through the serial light emitting diode.

Further, the first to third buttons are integrated in the same PCB module.

Further, a buzzer is integrated in the PCB module and used for voice broadcasting of the current running state of the elevator.

Further, the buzzer and the elevator main board are communicated through RS485 to realize the transmission of running state information.

Compared with the prior art, the utility model at least has the following beneficial effects:

(1) According to the linkage type button elevator bypass circuit, safe and effective transmission under the condition that elevator control signals are not interfered with each other can be realized by combining a simple control loop with a key switch;

(2) Meets the design requirements of landing door and car door bypass devices, and effectively avoids safety accidents caused by short circuit of door locks;

(3) The door lock bypass is realized through a simple linkage button device, and the function realization cost is reduced.

Drawings

Fig. 1 is a circuit schematic of a ganged button elevator bypass circuit.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

Example 1

At present, most elevators can have the problem of door lock faults in the maintenance repair process, so that the elevators cannot normally operate, the door lock loop can be in short circuit in the repair process to repair the elevators, and the original shorting line can be forgotten to be removed in the repair process, so that safety accidents are caused. In view of this problem, the present utility model proposes a linkage type button elevator bypass circuit, as shown in fig. 1, by a simple device, on the premise of meeting the design requirement, comprising:

a first button (T1) for outputting a hall bypass signal to an elevator main board in a triggered state;

a second button (T2) for outputting an emergency electric signal to the elevator main board in a triggered state;

a third button (T3) for outputting a car door bypass signal to the elevator main board in a triggered state;

the first button to the third button adopt a key switch mechanical structure, and when one button is pressed down to enter a trigger state, the other two buttons enter a reset state under the linkage action of the key switch.

Meanwhile, the first button to the third button are double-pole switches and comprise a first switch and a second switch which are linked. One end of the first switch is connected with a signal corresponding to the current button, the other end of the first switch is connected with a signal input port of the elevator main board corresponding to the current button, one end of the second switch is grounded through a light emitting diode (comprising D1 to D3), and the other end of the second switch counts in working voltage (+ 24V). The purpose of this arrangement is that a first one of the double-pole switches is used for controlling the output of the corresponding signal to the elevator motherboard and a second one of the double-pole switches is used for the display of the current push button operating state by means of the series connection of light emitting diodes.

As can be seen from the description of fig. 1 and the above circuit, the utility model integrates three double-pole switches with light-emitting diodes into one PCB module to realize the integral integration of the elevator and to function as a bypass landing door or a car door contact. Meanwhile, in order to enhance the warning effect, besides warning related information through the light emitting diode, a voice player (buzzer) is integrated in the PCB module, and the current running state of the elevator is prompted through a second voice broadcasting mode. The transmission of the running state information between the buzzer and the elevator main board is realized through RS485 communication.

In actual operation, when the elevator is in a normal working mode state, the second button is in an action state and emits green light, and at the moment, the elevator can automatically operate, and the voice player detects and reports that the elevator is in normal operation through 485 communication with the elevator main board. When the elevator is in the hall bypass state, the first button is pressed at the moment, the second button and the third button can spring up to reset under the linkage action of the key switch no matter what operation state the second button and the third button are in, and meanwhile, the light emitting diode in the first button emits red light, and the voice player broadcasts that the elevator is in the hall bypass. When the elevator is in the car door bypass, the third button is pressed, and the elevator can be sprung to reset no matter what operation state the second button and the hall door bypass button are in, the light-emitting diode in the car door bypass button emits red light, and the voice player broadcasts that the elevator is in the car door bypass. Under the linkage action of the key switch, when only one button acts in the three buttons, the other two buttons can automatically reset to play a role in linkage and effectively prevent the elevator car door from being short-circuited at the same time in a voice playing mode, thereby meeting the operation requirement of automatically entering an emergency electric/maintenance operation mode when the door lock bypasses.

In summary, according to the linkage type button elevator bypass circuit, safe and effective transmission under the condition that elevator control signals are not interfered with each other can be achieved through a simple control loop and a key switch.

Meets the design requirements of landing door and car door bypass devices, and effectively avoids safety accidents caused by short circuit of door locks. The door lock bypass is realized through a simple linkage button device, and the function realization cost is reduced.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

Claims

1. A ganged button elevator bypass circuit, comprising:

2. The ganged-button elevator bypass circuit of claim 1, wherein the first button to the third button are double-pole switches comprising a ganged first switch and a ganged second switch.

3. The linkage type button elevator bypass circuit according to claim 2, wherein one end of the first switch is connected to a signal corresponding to a current button, the other end of the first switch is connected to a signal input port corresponding to an elevator main board corresponding to the current button, one end of the second switch is grounded through a light emitting diode, and the other end of the second switch counts in an operating voltage.

4. A ganged button elevator bypass circuit as set forth in claim 3, wherein a first switch of the double-pole switches is used for controlling the output of a corresponding signal to an elevator main board, and a second switch of the double-pole switches is used for displaying the current button operating state through a serial light emitting diode.

5. The ganged-button elevator bypass circuit of claim 1, wherein the first button to the third button are integrated in the same PCB module.

6. The ganged-button elevator bypass circuit of claim 5, further comprising a buzzer integrated into the PCB module for voice broadcasting the current operating state of the elevator.

7. The linkage type button elevator bypass circuit according to claim 6, wherein the buzzer and the elevator main board are in communication through RS485 to realize the transmission of running state information.