CN214652904U

CN214652904U - Safety protection device suitable for function is prevented pressing from both sides by elevator sedan-chair door

Info

Publication number: CN214652904U
Application number: CN202023080938.9U
Authority: CN
Inventors: 马渝; 王小勇; 付建
Original assignee: Chongqing Wester Elevator Co ltd
Current assignee: Chongqing Wester Elevator Co ltd
Priority date: 2020-12-19
Filing date: 2020-12-19
Publication date: 2021-11-09
Anticipated expiration: 2030-12-19

Abstract

The utility model discloses a safety arrangement suitable for function is prevented pressing from both sides by elevator sedan-chair door, including split elevator sedan-chair door and the control system who controls elevator sedan-chair door, control system includes elevator light curtain system, controller and elevator control switch door system return circuit, elevator sedan-chair door includes left sedan-chair door and right sedan-chair door, install a plurality of pressure sensor on the side that left sedan-chair door and right sedan-chair door are relative, also install a plurality of pressure sensor on the side that right sedan-chair door and left sedan-chair door are relative; all pressure sensors and the elevator light curtain system are connected in parallel to be connected into the controller. The safety protection device makes up the defects of the elevator light curtain system in monitoring the elevator car door. The monitoring is all-directional and free of dead angles, the change of the original elevator is small, the cost is low, the occurrence of elevator safety accidents is avoided, and the passenger safety is favorably guaranteed.

Description

Safety protection device suitable for function is prevented pressing from both sides by elevator sedan-chair door

Technical Field

The utility model belongs to the technical field of elevator sedan-chair door, concretely relates to safety arrangement suitable for function is prevented pressing from both sides by elevator sedan-chair door.

Background

Most elevators on the market realize the sedan-chair door through the light curtain and prevent pressing from both sides function at present, and the elevator light curtain comprises infrared transmitter and the receiver of installing in elevator sedan-chair door both sides, the power pack and the special flexible cable who installs at the sedan-chair top four major parts. The infrared protection light curtain is characterized in that a plurality of groups of infrared transmitting tubes are arranged in the transmitter, and the transmitting and receiving tubes are sequentially opened under the control of the MCU to continuously scan the car door area from top to bottom to form an intensive infrared protection light curtain. When any beam of light is blocked, the control system immediately outputs a door opening signal, the car door stops closing and rotates reversely to open until the elevator door can be normally closed after the passenger or the blocking object leaves the warning area, so that the safety protection purpose is achieved, and the occurrence of accidents caused by people being in the elevator can be avoided.

The elevator light curtain has specific properties, and the light curtain is easy to fail when the elevator light curtain is subjected to dust and water inflow. In some cases, infrared light with similar wavelength in fluorescent lamp or elevator background stray light irradiates the infrared receiver, so that the infrared light curtain still sends out normal receiving signals even though the infrared receiver is blocked by an object. And the light curtain is not enough to the discernment ability of glass class article, leads to the sedan-chair door can not in time open to because the interval between the light curtain light beam, can't detect the tiny object of sedan-chair in the blind area position, cause the incident easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a safety arrangement suitable for elevator sedan-chair door prevents pressing from both sides function to solve the problem in the background art.

The technical scheme of the utility model as follows: the elevator car door comprises a split type elevator car door and a control system for controlling the elevator car door, wherein the control system comprises an elevator light curtain system, a controller and an elevator control door opening and closing system loop, the elevator car door comprises a left car door and a right car door, a plurality of pressure sensors are mounted on the side surface of the left car door opposite to the right car door, and a plurality of pressure sensors are also mounted on the side surface of the right car door opposite to the left car door; all the pressure sensors arranged on the left car door of the elevator are uniformly distributed in a rectangular array from top to bottom, and all the pressure sensors arranged on the right car door of the elevator are uniformly distributed in a rectangular array from top to bottom; all the pressure sensors and the elevator light curtain system are connected in parallel to be connected into the controller, and the controller controls the pressure sensors and the elevator light curtain system to simultaneously act on a loop of the elevator control door opening and closing system.

Further: all the pressure sensors arranged on the left car door and all the pressure sensors arranged on the right car door are arranged in a vertically staggered mode, so that monitoring vacuum zones are reduced as far as possible.

Further: all the pressure sensors are flexible array sensors, and the flexible array sensors comprise flexible polyester films, bonding layers and flexible FPC array circuits which are sequentially stacked up and down; the flexible FPC array circuit is provided with interdigital electrodes which are arranged in a rectangular array manner; the force sensitive layers, the button holes and the interdigital electrodes are in one-to-one correspondence from top to bottom, and when one force sensitive layer is triggered, the force sensitive layer closes the corresponding interdigital electrode through the button hole to finish the emission of an electric signal.

Has the advantages that: this scheme provides a safety arrangement suitable for function is prevented pressing from both sides by elevator sedan-chair door, and this safety arrangement has adopted installation pressure sensor on elevator sedan-chair door to insert original elevator light curtain system with pressure sensor, utilize pressure sensor and elevator light curtain system to monitor the obligation between the elevator sedan-chair door jointly, compensatied the elevator light curtain system weak point when monitoring elevator sedan-chair door. The monitoring is all-directional and free of dead angles, the change of the original elevator is small, the cost is low, the occurrence of elevator safety accidents is avoided, and the passenger safety is favorably guaranteed.

Drawings

FIG. 1 is a schematic view of the installation structure of the pressure sensor on the elevator car door of the present invention;

fig. 2 is a control schematic diagram of the control system of the present invention;

fig. 3 is a schematic structural diagram of a medium-flexibility array sensor according to the present invention;

fig. 4 is a schematic diagram of the interdigital electrode of the present invention.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model discloses a safety arrangement suitable for function is prevented pressing from both sides by elevator sedan-chair door, including to open elevator sedan-chair door 1 and control system, control system is the original control system of elevator, and this control system includes elevator light curtain system, controller and elevator control switch door system return circuit. When no improvement is made, the elevator light curtain system controls the opening and closing of the loop of the elevator control door opening and closing system through the controller by detecting whether an obstacle exists between the left car door 1a and the right car door 1b of the elevator car door 1, so that the opening or closing action of the elevator car door 1 is completed.

In the scheme, a plurality of pressure sensors are arranged on the side face of the left car door 1a opposite to the right car door 1b, and a plurality of pressure sensors are also arranged on the side face of the right car door 1b opposite to the left car door 1 a. All the pressure sensors arranged on the left car door 1a of the elevator are uniformly distributed in a rectangular array from top to bottom, and all the pressure sensors arranged on the right car door 1b of the elevator are uniformly distributed in a rectangular array from top to bottom. And all pressure sensors and the elevator light curtain system are connected in parallel to be connected into the controller, and the controller controls the pressure sensors and the elevator light curtain system to act on a loop of the elevator control door opening and closing system at the same time.

As shown in the control schematic diagram of fig. 2, the pressure sensor and the elevator light curtain system are connected into the controller together, and the controller controls the elevator to control the door opening and closing system loop. When the pressure sensor is under pressure or the elevator light curtain system monitors an obstacle, and any one of the pressure sensor and the elevator light curtain system acts, the elevator control door opening and closing system loop controls the elevator car door 1 to be opened reversely, so that a human body is protected from being clamped by the elevator car door 1 as much as possible, and the occurrence of shell safety accidents is avoided.

The pressure sensors are uniformly distributed on the elevator car door 1 in a rectangular array mode, so that up-down comprehensive monitoring behaviors are formed, and dead angles are avoided. Meanwhile, the optimized structure is as follows: all the pressure sensors arranged on the left car door 1a and all the pressure sensors arranged on the right car door 1b are arranged in a vertically staggered mode, so that the monitoring vacuum belt is reduced as far as possible. The array type pressure sensors are compensated, so that gaps between the elevator car doors 1 can be detected without dead angles.

The scheme further optimizes the layout of the pressure sensors: as shown in fig. 3 and 4, all the pressure sensors are flexible array sensors 2, and the pressure sensors installed on the left car door 1a and the right car door 1b all use the flexible array sensors 2. As shown in fig. 3, the flexible array sensor 2 includes a flexible polyester film 21, an adhesive layer 22, and a flexible FPC array circuit 23 stacked in sequence from top to bottom; the flexible polyester film 21 is provided with force-sensitive layers 2a arranged in a rectangular array manner, the bonding layer 22 is provided with hollow button holes 2b arranged in a rectangular array manner, and the flexible FPC array circuit 23 is provided with interdigital electrodes 2c arranged in a rectangular array manner; the force sensitive layers 2a, the button holes 2b and the interdigital electrodes 2c are in one-to-one correspondence from top to bottom, and when one force sensitive layer 2a is triggered, the force sensitive layer 2a closes the corresponding interdigital electrode 2c through the button hole 2b, so that the transmission of an electric signal is completed.

The flexible array sensor 2 not only realizes the balanced arrangement of the pressure sensors, but also has the advantages of thin thickness, easy installation, strong external shape adapting capability, realization of multi-point monitoring, realization of pressing a corresponding interdigital electrode 2c through a button hole 2b by each force sensitive layer 2a, no cross influence among the interdigital electrodes, low error rate and suitability for the real-time monitoring of the elevator car door 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a safety arrangement suitable for function is prevented pressing from both sides by elevator sedan-chair door which characterized in that: the elevator door comprises an oppositely-opened elevator car door (1) and a control system for controlling the elevator car door (1), wherein the control system comprises an elevator light curtain system, a controller and an elevator control door opening and closing system loop, the elevator car door (1) comprises a left car door (1a) and a right car door (1b), a plurality of pressure sensors are installed on the side face, opposite to the right car door (1b), of the left car door (1a), and a plurality of pressure sensors are also installed on the side face, opposite to the left car door (1a), of the right car door (1 b); all the pressure sensors arranged on the left car door (1a) of the elevator are uniformly distributed in a rectangular array from top to bottom, and all the pressure sensors arranged on the right car door (1b) of the elevator are uniformly distributed in a rectangular array from top to bottom; all the pressure sensors and the elevator light curtain system are connected in parallel to be connected into the controller, and the controller controls the pressure sensors and the elevator light curtain system to simultaneously act on a loop of the elevator control door opening and closing system.

2. The safety protection device suitable for elevator sedan-chair door anti-pinch function of claim 1, characterized in that: all the pressure sensors arranged on the left car door (1a) and all the pressure sensors arranged on the right car door (1b) are arranged in a vertically staggered mode, so that monitoring vacuum zones are reduced as far as possible.

3. The safety protection device suitable for elevator sedan-chair door anti-pinch function of claim 1, characterized in that: all the pressure sensors are flexible array sensors (2), and the flexible array sensors (2) comprise flexible polyester films (21), adhesive layers (22) and flexible FPC array circuits (23) which are sequentially stacked up and down; the flexible FPC array circuit is characterized in that force-sensitive layers (2a) arranged in a rectangular array manner are arranged on the flexible polyester film (21), hollowed button holes (2b) arranged in a rectangular array manner are formed in the adhesive layer (22), and interdigital electrodes (2c) arranged in a rectangular array manner are arranged on the flexible FPC array circuit (23); the force sensitive layers (2a), the button holes (2b) and the interdigital electrodes (2c) are in one-to-one correspondence from top to bottom, and when one force sensitive layer (2a) is triggered, the force sensitive layer (2a) closes the corresponding interdigital electrode (2c) through the button hole (2b), so that the emission of an electric signal is completed.