CN220182507U - Elevator light curtain system - Google Patents

Abstract

The utility model relates to an elevator light curtain system, which comprises a car door, a car door frame and a plurality of sensors; the car door frame is arranged at the top of the car door; the plurality of sensors are mounted on the car door frame; or a plurality of sensors are mounted on the car door and the car door frame; the plurality of sensors are laser ranging sensors, and the transmitting part and the receiving part of the sensors are integrally arranged. The light curtain system realizes the detection of the elevator obstacle by arranging the laser ranging sensor, and is convenient to install; the continuous light curtain can be formed, almost no detection blind area exists, and the rope and the glass can be detected in the final door closing stage, so that the safety of the elevator is greatly improved; the volume is small, the materials are few, and the energy is saved and the environment is protected; the cost is low, and the popularization is convenient.

Description

Elevator light curtain system

Technical Field

The utility model belongs to the field of elevator detection, and particularly relates to an elevator light curtain system.

Background

Currently, conventional elevator light curtains contain two components, transmitting and receiving, requiring two installations and wiring. Adjustment and alignment of the transmit and receive components is required and the installation is complex. In addition, the installation of the transmitting and receiving parts of the conventional elevator light curtain needs to be aligned, and the conventional elevator light curtain changes along with the operation time of the elevator, and needs to be maintained regularly, so that the operation cost of the elevator is increased. In addition, the conventional elevator light curtain has a large detection gap in the horizontal direction, for example, the pet rope may not be detected, and tragedy is generated, so a novel elevator light curtain is needed to solve the problems.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a novel elevator light curtain system.

The number of the technical schemes is 2, and the first technical scheme is as follows: an elevator light curtain system includes a car door, a car door frame, and a plurality of sensors; the car door frame is arranged at the top of the car door; the plurality of sensors are mounted on the car door frame; or a plurality of sensors are mounted on the car door and the car door frame; the plurality of sensors are laser ranging sensors, and the transmitting part and the receiving part of the sensors are integrally arranged.

Further, the number of the car doors is 2.

Further, when the plurality of sensors are mounted on the car door frame, the distance between adjacent sensors is about 2-10cm.

Further, when a plurality of sensors are mounted on the car door and the car door frame, 1-2 sensors are provided on each car door, respectively.

Further, the obstacle judgment threshold of the sensor is slightly smaller than the distance between the sensor and the car floor. The second technical scheme of the utility model is as follows: an elevator light curtain system includes a car door, a car door frame, and a plurality of sensors; a sliding rail is fixedly arranged on the car door frame; a sliding block is arranged on the sliding rail; the sliding block can slide on the sliding rail; each sliding block is provided with 1 or more sensors; the plurality of sensors are laser ranging sensors, and the transmitting part and the receiving part of the sensors are integrally arranged.

Further, when the car door is turned from the open state to the closed state, the slider is provided to slide rapidly on the guide rail, and the sensor mounted on the slider detects whether an obstacle exists.

Further, the obstacle judgment threshold of the sensor is slightly smaller than the distance between the sensor and the car floor.

The beneficial effects of the utility model are as follows: the light curtain system realizes the detection of the elevator obstacle by arranging the laser ranging sensor, and is convenient to install; the continuous light curtain can be formed, almost no detection blind area exists, and the rope and the glass can be detected in the final door closing stage, so that the safety of the elevator is greatly improved; the volume is small, the materials are few, and the energy is saved and the environment is protected; the cost is low, and the popularization is convenient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a preferred elevator light curtain system according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a second elevator light curtain system according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a third preferred elevator light curtain system according to an embodiment of the present utility model;

fig. 4 is a schematic circuit diagram of an elevator control system according to a preferred embodiment of the present utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described below with reference to the accompanying drawings.

Example 1

Fig. 1 is a schematic view of a preferred elevator light curtain system according to an embodiment of the present utility model.

As shown in fig. 1, the elevator light curtain system 10 includes a car door 11, a car door frame 12, and a plurality of sensors 21. The number of car doors 11 is 2. The car door frame 12 is at the top of the car door 11, and a part of the sensor 21 is mounted at the middle position of the car door frame 12; the other sensors 21 are mounted on the car doors 11, for example, 1-2 sensors 21 are mounted in the middle of the car door frame 12, 1-2 sensors 21 are provided on each car door 11, and when 2 sensors 21 are mounted in the middle of the car door frame 12, the distance between adjacent sensors 21 is about 2-10cm.

The sensor 21 is a laser sensor, and the transmitting part and the receiving part of the sensor are integrally arranged, after the laser sensor transmits laser, the laser sensor reflects the laser, receives reflected light through an object, measures a distance value, and judges whether an obstacle exists according to the distance value, wherein the laser sensor moves along the moving direction of the car door to form a light curtain in the vertical direction, so that an approximately continuous laser beam detection area is formed. Setting a plurality of sensors 21, wherein the obstacle judging threshold value is slightly smaller than the distance between the sensors 21 and the car floor, and if 1 sensor 21 detects an object within the detection distance range, stopping the door closing action and re-opening the door; the door closing operation is normally completed only when all the sensors 21 detect an object within the detection distance range.

Fig. 2 is a schematic structural view of a second elevator light curtain system according to an embodiment of the present utility model.

As shown in fig. 2, the elevator light curtain system 10 includes a car door 11, a car door frame 12, a guide rail 13, a slider 14, and a plurality of sensors 21. The number of car doors 11 is 2. The car door frame 12 is provided on top of the car door 11. A guide rail 13 is fixedly installed on the car door frame 12, 1 or more slide blocks 14 are arranged on the guide rail 13, 1 or more sensors 21 are installed on each slide block 14, and the slide blocks 14 can slide on the guide rail 13 according to a set program.

When the car door 11 is turned from the open state to the closed state, the slider 14 is provided to slide rapidly on the guide rail 13, and the sensor 21 mounted on the slider 14 detects the presence or absence of an obstacle. The sensor 21 is a laser sensor, and the transmitting part and the receiving part of the sensor are integrally arranged, after the laser sensor transmits laser, the laser sensor reflects the laser, receives reflected light through an object, measures a distance value, and judges whether an obstacle exists according to the distance value, wherein the laser sensor moves along the moving direction of the car door to form a light curtain in the vertical direction, so that an approximately continuous laser beam detection area is formed.

Setting a plurality of sensors 21, wherein the obstacle judging threshold value is slightly smaller than the distance between the sensors 21 and the car floor, and if 1 sensor 21 detects an object within the detection distance range, stopping the door closing action and re-opening the door; the door closing operation is normally completed only when all the sensors 21 detect an object within the detection distance range.

Example III

Fig. 3 is a schematic diagram of a third preferred elevator light curtain system according to an embodiment of the present utility model.

As shown in fig. 3, the elevator light curtain system 10 includes a car door 11, a car door frame 12, and a plurality of sensors 21. The number of car doors 11 is 2. The car door frame 12 is disposed on top of the car door 11, and all the sensors 21 are mounted on the car door frame 12 with a distance between adjacent sensors 21 of about 2-10cm.

The sensor 21 is a laser sensor, and the transmitting portion and the receiving portion are integrally provided, and the laser sensor transmits laser light, then reflects the laser light by an object, and receives the reflected light, measures a distance value, and determines whether an obstacle exists based on the distance value. Setting a plurality of sensors 21, wherein the obstacle judging threshold value is slightly smaller than the distance between the sensors 21 and the car floor, and if 1 sensor 21 detects an object within the detection distance range, stopping the door closing action and re-opening the door; the door closing operation is normally completed only when all the sensors 21 detect an object within the detection distance range.

Example IV

Fig. 4 is a schematic circuit diagram of an elevator control system according to a preferred embodiment of the present utility model.

As shown in fig. 4, the elevator control system 20 includes a plurality of sensors 21, a processor 22, and a door motor driver 23. Wherein the processor 22 is electrically connected to the plurality of sensors 21, and the door motor driver 23, respectively. The plurality of sensors 21 send the detected information to the processor 22, and the processor 22 determines whether an obstacle exists, and if so, the processor 22 sends a door stop closing message to the door motor driver 23, and the door motor driver 23 keeps the car door 11 in an open state based on the received door stop closing message.

When the car door 11 is in the open state, the processor 22 periodically acquires the obstacle detection information transmitted from the plurality of sensors 21, and when the periodically acquired obstacle detection information is obstacle-free, the processor 22 transmits a door closing message to the door motor driver 23, and the door motor driver 23 closes the car door 11 according to the door closing message.

According to the elevator obstacle detection device, the detection of the elevator obstacle is realized by arranging the laser sensor, 2 installation and wiring are not needed, and alignment and adjustment are not needed, so that the elevator obstacle detection device is convenient to use; and the maintenance period is far longer than that of a light curtain system with a transmitting end and a receiving end separated, so that the operation cost is saved.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. An elevator light curtain system includes a car door, a car door frame, and a plurality of sensors; it is characterized in that the method comprises the steps of,

the car door frame is arranged at the top of the car door;

the plurality of sensors are mounted on the car door frame; or a plurality of sensors are mounted on the car door and the car door frame;

the plurality of sensors are laser ranging sensors, and the transmitting part and the receiving part of the sensors are integrally arranged.

2. An elevator light curtain system as defined in claim 1, wherein,

the number of car doors is 2.

3. An elevator light curtain system as defined in claim 1, wherein,

when the plurality of sensors are mounted on the car door frame, the distance between adjacent sensors is about 2-10cm.

4. An elevator light curtain system as defined in claim 1, wherein,

when a plurality of sensors are mounted on the car door and the car door frame, 1-3 sensors are respectively arranged on each car door.

5. The elevator light curtain system of claim 4, wherein,

the obstacle judging threshold value of the sensor is slightly smaller than the distance between the sensor and the plane of the floor of the car.

6. An elevator light curtain system includes a car door, a car door frame, and a plurality of sensors; it is characterized in that the method comprises the steps of,

a sliding rail is fixedly arranged on the car door frame;

a sliding block is arranged on the sliding rail;

the sliding block can slide on the sliding rail;

each sliding block is provided with 1 or more sensors;

the plurality of sensors are laser ranging sensors, and the transmitting part and the receiving part of the sensors are integrally arranged.

7. The elevator light curtain system of claim 6, wherein,

when the car door is turned from an open state to a closed state, the slider is arranged to slide rapidly on the guide rail, and a sensor mounted on the slider detects whether an obstacle is present.

8. The elevator light curtain system of claim 7, wherein,

the obstacle judging threshold value of the sensor is slightly smaller than the distance between the sensor and the plane of the floor of the car.