An elevator hand-pull door call control device

Abstract

The present invention discloses an elevator hand-pushing door outbound call control device, comprising an elevator mainboard, a leveling sensor, and a hand-pushing door electromagnet, an electromagnet control board, an outbound call control board and a magnetic switch arranged at each floor station of the elevator, wherein the leveling sensor is connected to the pin X60 of the elevator mainboard; the output pin Q1 of the electromagnet control board at each floor station is connected to the hand-pushing door electromagnet at the corresponding floor station; the input pin OP of the electromagnet control board at each floor station is connected to the output pin T2 of the outbound call control board at the corresponding floor station; the input pin I0 of the outbound call control board at each floor station is connected to the magnetic switch at the corresponding floor station; and the power supply pins of all the electromagnet control boards are respectively connected to the pin Y77 of the elevator mainboard. The elevator hand-pushing door outbound call control device of the present invention controls the hand-pushing door at each floor station through the elevator mainboard and the outbound call control board, and can simultaneously monitor the relative position and absolute position of the car, and has a simple circuit design, which is safer and more reliable.

Description

Technical Field

[0001] The invention relates to an elevator manual door external call control device. Background Art

[0002] With the rapid development of economy, the demand for home elevators in my country has increased greatly. Villa elevators and lifting platform equipment have always adopted automatic door technology. Due to the inconvenient space, home elevators use the door knife to drive the door ball to open the hall door like ordinary passenger elevators. Therefore, they basically use an automatic door control system for each floor, so the failure rate is high, so the hand-pull door came into being. The hand-pull door control has become the key to villa elevators and lifting platforms. Generally, the elevator motherboard is used to directly control the hand-pull door electromagnet to retract, and the hand-pull door can be opened, but the wiring is more complicated.

[0003] The automatic door of an ordinary passenger elevator is that the elevator main board sends the door opening and closing command to the door machine controller through CAN or switch quantity. The door machine controller drives the motor to drive the belt, and the belt drives the car door to open and close, and at the same time drives the door knife. The door knife clamps the door ball of the hall door to drive the door ball to move, thereby driving the hall door to open and close. The manual doors used in villa elevators and lifting platforms only have hall doors, but no car doors. There is no way to use the door knife to drive the door ball. The traditional practice is to use hand-pull doors for the hall doors. The hand-pull doors on each floor have a set of automatic door opening devices, which are complex to control and prone to failure.

[0004] See also Figure 1 In traditional home villa elevators, each floor station is equipped with an outbound call control board 2', and the hand-pull door of each floor station uses an electromagnet 3' to control the lock tongue. Each floor station is equipped with an electromagnet control board 4' that controls the attraction and release of the hand-pull door electromagnet. All electromagnet control boards 4' are connected to the output pins Y80-Y8n of the elevator main board 1' one by one. The leveling sensor 5' on the top of the car is connected to the pin X60 of the elevator main board 1'. The leveling sensor 5' is used for floor counting; each outbound call control board 2' communicates with the elevator main board 1' through the CAN bus. The hand-pull door is controlled only by the elevator main board 1' to control the attraction and release of the hand-pull door electromagnet. After the electromagnet is attracted, the electromagnet drives the lock tongue to retract. At this time, the hand-pull door is in a released state. At this time, the passenger can open and close the door by hand. Once the door is closed, the system detects that the door lock closing electromagnet is released, and the lock tongue pops out to lock the door. At this time, the door cannot be pushed open. The traditional approach is to control the hand-pull door electromagnet of each floor station through multiple output pins Y80-Y8n of the elevator main board 1'. Therefore, if it is necessary to increase the output pins as the control of the additional hall door, it is generally necessary to redevelop the elevator main board, which is time-consuming and labor-intensive.

[0005] At the same time, traditional home villa elevators all use the leveling sensor 5' on the top of the car to calculate the floor. This is a relative position sensor to determine the location of the elevator. Once the leveling sensor 5' shows signal jitter or other reasons, the floor may be wrong. For ordinary elevator hall doors, they are controlled by the car door. After the car leaves, the hall door will be locked by gravity and will not cause danger. However, the hand-pull door may be dangerous. For example, the car is actually on the 3rd floor, and the floor calculated by the leveling sensor 5' is the 2nd floor. At this time, the elevator main board controls the electromagnet of the hand-pull door on the 2nd floor to be attracted, and there is a mismatch in floor, and then there is a possibility that the passenger opens the hand-pull door due to the mismatch in floor and falls directly into the shaft. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide an elevator hand-pushing door external call control device, which controls the hand-pushing door of each floor station through the elevator main board and the external call control board, can simultaneously monitor the relative position and absolute position of the car, has a simple circuit design, and is safer and more reliable.

[0007] The technical solution to achieve the above purpose is: an elevator hand-pull door call control device, including an elevator main board, a leveling sensor, and a hand-pull door electromagnet, an electromagnet control board, a call control board and a magnetic switch arranged at each floor station of the elevator, wherein:

[0008] The leveling sensor is installed on the top of the elevator car, and the leveling sensor is connected to the pin X60 of the elevator mainboard;

[0009] The output pin Q1 of the electromagnet control board of each landing is connected to the hand-pull door electromagnet of the corresponding landing;

[0010] The input pin OP of the electromagnet control board of each landing is connected to the output pin T2 of the hall call control board of the corresponding landing;

[0011] The input pin I0 of the hall call control board at each landing is connected to the magnetic switch of the corresponding landing;

[0012] All the outbound call control panels communicate with the elevator main board via the CAN bus;

[0013] The power pins of all the electromagnet control boards are respectively connected to the pin Y77 of the elevator main board;

[0014] The elevator car is equipped with a magnetic strip, and the magnetic switch at each landing detects the absolute floor position of the elevator car by sensing the position of the magnetic strip.

[0015] The above-mentioned elevator hand-pull door call control device, wherein, when the elevator car arrives at each landing, the magnetic switch of the corresponding landing senses the position of the magnetic strip and sends an absolute floor position signal to the corresponding call control board; the call control board transmits the absolute floor position signal to the elevator main board through the CAN bus; at the same time, the leveling sensor sends the detected relative leveling signal to the elevator main board;

[0016] The elevator main board compares the received absolute floor position signal with the relative leveling signal. When the floors indicated by the two are consistent, the elevator main board sends a power supply signal to the electromagnet control board of the corresponding floor station to provide power for the corresponding electromagnet control board; at the same time, the elevator main board outputs a door opening command to the external call control board of the corresponding floor station through the CAN bus;

[0017] The outbound call control board at the corresponding landing receives the door opening command from the elevator main board, and outputs the door opening signal to the electromagnet control board at the corresponding landing in combination with the absolute floor position signal;

[0018] The electromagnet control board controls the attraction of the electromagnet of the hand-pull door according to the received door opening signal.

[0019] The above-mentioned elevator manual door call control device, wherein the elevator main board compares the received absolute floor position signal and the relative leveling signal, and when the floors indicated by the two are inconsistent, an alarm signal is output for early warning.

[0020] In the above-mentioned elevator hand-pull door call control device, the magnetic switch of each landing station is installed near the track on which the elevator car runs.

[0021] Compared with the prior art, the elevator manual door call control device of the present invention has the following beneficial effects:

[0022] (1) The absolute position of the floor monitored by the call control panel is cross-checked with the original relative position monitoring data to ensure that the elevator will not stray from the floor and the hand-pull door will not be opened at the wrong floor, causing passengers to step into the shaft by mistake, thus ensuring safety;

[0023] (2) There is no need to increase the output pins and input pins of the elevator main board. Instead, the inherent input and output pins of the hall call control board are used to monitor the absolute position of the elevator floor and control the electromagnet of the hand-pull door. The hall call control board monitors the absolute position information of the floor to achieve double detection to ensure safety and realize redundant design.

[0024] (3) The elevator mainboard is used as the upper computer, and the call control board is used as the lower computer. Data is exchanged through the CAN bus to achieve distributed control and modular design to facilitate standardization;

[0025] (4) The power supply of all electromagnets is controlled through the elevator main board, and the electromagnets of the corresponding floors are controlled to be attracted and released through the outside call control panel, thus achieving double protection and redundant design. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the electrical connection diagram of the traditional hand-pull door control device of the villa elevator;

[0027] Figure 2 The present invention is a schematic diagram of the electrical connection of the elevator manual door call control device. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the specific implementation methods thereof are described in detail below in conjunction with the accompanying drawings:

[0029] See also Figure 2 The best embodiment of the present invention is an elevator hand-pushing door call control device, which includes an elevator main board 1, a leveling sensor 5, and a hand-pushing door electromagnet 3, an electromagnet control board 4, an call control board 2 and a magnetic switch 6 arranged at each floor station of the elevator.

[0030] The leveling sensor 5 is installed on the top of the elevator car, and is connected to the pin X60 of the elevator main board 1; the leveling sensor 5 is used for floor counting. The output pin Q1 of the electromagnet control board 4 of each landing is connected to the hand-pull door electromagnet 3 of the corresponding landing; the input pin OP of the electromagnet control board 4 of each landing is connected to the output pin T2 of the hall call control board 2 of the corresponding landing; the input pin I0 of the hall call control board 2 of each landing is connected to the magnetic switch 6 of the corresponding landing; all hall call control boards 2 communicate with the elevator main board 1 through the CAN bus; the power pins 24V of all the electromagnet control boards 4 are respectively connected to the pin Y77 of the elevator main board 1.

[0031] A magnetic strip is installed on the elevator car, and the magnetic switch 6 at each landing is installed near the track on which the elevator car runs. As the car moves to each landing, the magnetic switch 6 at the landing senses the position of the magnetic strip and detects the absolute floor position of the car. In this way, the magnetic switch 6 at each landing detects the absolute floor position of the elevator car by sensing the position of the magnetic strip.

[0032] The elevator hand-pushing door outbound call control device of the present invention is as follows: when the elevator car arrives at each floor station, the magnetic switch 6 of the corresponding floor station senses the position of the magnetic strip and sends an absolute floor position signal to the corresponding outbound call control board 2; the outbound call control board 2 transmits the absolute floor position signal to the elevator main board 1 through the CAN bus; at the same time, the leveling sensor 5 sends the detected relative leveling signal to the elevator main board 1; the elevator main board 1 compares the received absolute floor position signal with the relative leveling signal, and when the floors indicated by the two are consistent, the elevator main board 1 sends a power supply signal to the electromagnet control board 4 of the corresponding floor station to provide power for the corresponding electromagnet control board 4; at the same time, the elevator main board 1 outputs a door opening command to the outbound call control board 2 of the corresponding floor station through the CAN bus; the outbound call control board 2 of the corresponding floor station receives the door opening command from the elevator main board 1, and outputs a door opening signal to the electromagnet control board 4 of the corresponding floor station in combination with the absolute floor position signal; the electromagnet control board 4 controls the attraction of the hand-pushing door electromagnet according to the received door opening signal to realize the hand-pushing door control. The elevator main board 1 compares the received absolute floor position signal with the relative leveling signal. When the floors indicated by the two are inconsistent, an alarm signal is output for early warning. In this way, the power supply of all electromagnets is controlled by the elevator main board 1, and the electromagnets of the corresponding floors are controlled to be attracted and released by the call control board 2, so as to realize dual control, instead of just controlling the hand-pull door by the elevator main board 1.

[0033] The elevator hand-pushing door outbound call control device of the present invention adopts a magnetic switch 6 installed at each leveling position in the hoistway to detect the absolute position of the car, ensure the absolute position of the car at the floor, monitor the signal of the magnetic switch 6 of the floor through the input pin I0 of the outbound call control board 2, and transmit the absolute floor position signal to the elevator main board 1 through the CAN bus. The elevator main board 1 determines the position of the car according to the relative leveling signal and the absolute floor position signal, determines which floor hand-pushing door to open and outputs a signal to the corresponding electromagnet control board 4 to provide power, and sends a door opening command to the outbound call control board 2 of the floor. The outbound call control board 2 of the floor controls the attraction of the hand-pushing door electromagnet 3 according to the absolute floor position signal of the magnetic switch of the floor and the door opening command transmitted by the elevator main board 1. The hand-pushing door electromagnet of each floor is controlled by the elevator main board 1 and the outbound call control board 2 together, so as to avoid the door being in an open state due to the adhesion of the output point of the outbound call control board 2, and realize redundant design and distributed control. When adding floors, it is not necessary to redesign the elevator main board 1, which saves time and effort.

[0034] The elevator hand-pull door outside call control device of the present invention has the functions of communication, display of floor information, button calling, etc. of the traditional outside call control panel, and also has the signal input of the absolute position of the floor, and the hand-pull door electromagnet control function. The hand-pull door control is realized by controlling the electromagnet attraction and release of the corresponding floor through the elevator main board and the outside call control panel, which is safe, reliable, simple and convenient.

[0035] In summary, the elevator hand-pushing door external call control device of the present invention controls the hand-pushing door of each floor station through the elevator main board and the external call control board, can simultaneously monitor the relative position and absolute position of the car, has a simple circuit design, and is safer and more reliable.

[0036] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. An elevator manual door call control device, characterized in that: It includes the elevator main board, leveling sensor, and the hand-pull door electromagnet, electromagnet control panel, outbound call control panel and magnetic switch set at each floor station of the elevator, among which: The leveling sensor is installed on the top of the elevator car, and the leveling sensor is connected to the pin (X60) of the elevator mainboard; The output pin (Q1) of the electromagnet control board of each landing is connected to the hand-pull door electromagnet of the corresponding landing; The input pin (OP) of the electromagnet control board of each landing is connected to the output pin T2 of the hall call control board of the corresponding landing; The input pin (I0) of the hall call control board at each landing is connected to the magnetic switch of the corresponding landing; All the outbound call control panels communicate with the elevator main board via the CAN bus; The power pins of all the electromagnet control boards are respectively connected to the pins (Y77) of the elevator main board; The elevator car is equipped with a magnetic strip, and the magnetic switch at each landing detects the absolute floor position of the elevator car by sensing the position of the magnetic strip. The power supply of all electromagnets is controlled by the elevator main board, and the electromagnets on the corresponding floors are controlled to be attracted and released by the outside call control panel, thus achieving double protection and redundant design.

2. The elevator manual door call control device according to claim 1, characterized in that: When the elevator car arrives at each landing, the magnetic switch at the corresponding landing senses the position of the magnetic strip and sends an absolute floor position signal to the corresponding outbound call control board; the outbound call control board transmits the absolute floor position signal to the elevator main board through the CAN bus; at the same time, the leveling sensor sends the detected relative leveling signal to the elevator main board; The elevator main board compares the received absolute floor position signal with the relative leveling signal. When the floors indicated by the two are consistent, the elevator main board sends a power supply signal to the electromagnet control board of the corresponding floor station to provide power for the corresponding electromagnet control board; at the same time, the elevator main board outputs a door opening command to the external call control board of the corresponding floor station through the CAN bus; The outbound call control board at the corresponding landing receives the door opening command from the elevator main board, and outputs the door opening signal to the electromagnet control board at the corresponding landing in combination with the absolute floor position signal; The electromagnet control board controls the attraction of the electromagnet of the hand-pull door according to the received door opening signal.

3. The elevator manual door call control device according to claim 1, characterized in that: The elevator main board compares the received absolute floor position signal with the relative leveling signal, and when the floors indicated by the two are inconsistent, an alarm signal is output for early warning.

4. The elevator manual door call control device according to claim 1, characterized in that: The magnetic switch at each landing is installed near the track on which the elevator car runs.

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