CN215974509U

CN215974509U - Simple and easy light-duty lift-cabin door protection device

Info

Publication number: CN215974509U
Application number: CN202121114911.9U
Authority: CN
Inventors: 陈炜
Original assignee: Shanghai Sunny Elevator Assembly Co ltd
Current assignee: Shanghai Sunny Elevator Assembly Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2022-03-08
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a simple and light elevator door protection device, and belongs to the technical field of elevators. It is fixed with mounting plate including installing two car door plant that open and shut relatively on elevator gate sill on every car door plant, and mounting plate is connected with telescopic light curtain body through many connecting rods, its characterized in that still includes the recovery subassembly of installing in light curtain body bottom to and install the shielding switch subassembly on the light curtain body. When the light curtain body is installed on the car door plate through the connecting rod, the recovery assembly is added at the bottom of the light curtain body, and the elevator door protection effect of mechanical and photoelectric integration is realized through the relatively simple matching of the recovery assembly and the light curtain body; the recycling device is suitable for various installation sizes, the light curtain body has interchangeability and universality, and installation, interchange and maintenance can be conveniently carried out on the car door plates of different sizes and different manufacturers.

Description

Simple and easy light-duty lift-cabin door protection device

Technical Field

The utility model relates to a simple and light elevator door protection device, and belongs to the technical field of elevators.

Background

Elevators are indispensable tools in modern life, and elevator door protection devices are important equipment for protecting passengers from entering and exiting an elevator car. At present, the market mainly has several protection modes such as a mechanical touch panel, a light curtain and a two-in-one touch panel light curtain. With the continuous improvement of the technical standard and the technical progress of various similar products, the use of the protection device which only depends on the mechanical touch panel is less and less, and the use of the two-in-one touch panel light curtain is in an increasing trend.

The elevator door safety touch panel component is a near-door safety protection device of an elevator, is an electromechanical integrated door-closing anti-pinch safety device, belongs to an induction type protection device, and is used for preventing people or articles from being pinched and damaged in the automatic door-closing process of the elevator. The safety contact plate belongs to a soft door on an elevator car door, when the elevator car is closed the door in-process safety contact plate contact and sense the object, a switch connected near the door can give a door opening signal to a door machine control system, and the elevator opens the door to reach the effect of not hindering the people and not hindering the object.

The elevator door light curtain component is a light type elevator door safety protection device, also belongs to a soft door on an elevator car door, and consists of four parts, namely an infrared transmitter and a receiver which are arranged on two sides of the elevator car door, a power supply box arranged on the car top and a special flexible cable. The infrared transmitting tubes are arranged in the transmitter, and the transmitting and receiving tubes are opened sequentially 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 elevator can be prevented from people and things being jammed.

The difference between the safety touch panel and the light curtain is as follows: the light beam of the light curtain which generates infrared rays can block the light beam when a person or an object enters the elevator, so that the elevator door cannot be closed, and the contact plate rebounds when the safety contact plate needs to contact the person or the object, so that the elevator opens the door again.

Most of the elevators used at present can only adopt a mechanical safety touch panel or a photoelectric light curtain independently; the mechanical structure is complex, no light, electricity, magnetism and other interferences exist, but mechanical faults are more, and meanwhile, the safety touch plate reduces the door opening distance of the elevator door, so that the elevator door is easily damaged by impact deformation, and the service life is influenced to a certain extent; the photoelectric light curtain has high sensitivity, but the structure has high requirements on light resistance, electricity resistance and magnetism resistance, and in addition, the light curtain consists of a plurality of groups of infrared transmitting tubes and receiving tubes, so that the tubes are easy to attenuate under the working condition all the year round. A protection component is independently used, so that the elevator is easy to break down after long-term use, and the elevator cannot be normally used. At present, a product integrating a safety touch panel and an optoelectronic light curtain is also produced, but the structure is complex, and the reliability of long-term use needs to be improved. Therefore, the simple and light elevator door protection device is designed, and combines two protection modes of a safety touch panel and a photoelectric light curtain into a whole by using a simple and reliable structure, so that the elevator door protection device not only has higher safety, but also is simpler and more reliable in operation.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the elevator door protection device is simple and light, and solves the problems that the existing mechanical and photoelectric two-in-one elevator door protection device is complex in structure and needs to be improved in reliability.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

a simple and light elevator door protection device comprises two oppositely-opened and closed car door plates arranged on a sill at an elevator door, a mounting bottom plate is fixed on each car door plate, the mounting bottom plates are connected with a telescopic light curtain body through a plurality of connecting rods, a recovery assembly arranged at the bottom of the light curtain body, and a shielding switch assembly arranged on the light curtain body;

the recycling assembly comprises recycling stop blocks, a microswitch, a recycling connecting rod, a trigger rod, a reset spring and a recycling wheel, the recycling stop blocks are fixed on two sides of a sill of the elevator car, the microswitch is fixed on the lower portion of the light curtain body, the middle portion of the recycling connecting rod is hinged to the bottom of the mounting bottom plate, the upper end of the recycling connecting rod is fixed with the trigger rod, the upper end of the trigger rod is provided with a bent portion, the bent portion corresponds to the position of a trigger plectrum of the microswitch, the upper end of the recycling connecting rod is connected with the mounting bottom plate through the reset spring, the lower end of the recycling connecting rod is provided with the recycling wheel, when the light curtain body naturally droops and extends out of a door plate of the elevator car, the bottom of the microswitch falls on the trigger rod, and the bent portion of the trigger plectrum of the trigger rod is separated from the trigger plectrum of the microswitch;

the shielding switch assembly comprises a shielding magnetic control switch and a mounting seat which are matched with each other, and the shielding magnetic control switch and the mounting seat are respectively fixed at corresponding positions of the two light curtain bodies. When two light curtain bodies are close to the contact, the micro switch is also triggered and generates a door opening signal, the door opening signal needs to be shielded at the moment, the door can be normally closed, and the shielding switch assembly can play a role in shielding the door opening signal of the micro switch.

As a preferred example, two sets of shielding switch assemblies are arranged on the light curtain body. Two sets of shielding switch subassemblies can improve the reliability of shielding signal of opening the door.

As a preferable example, the microswitch is installed in the installation protection shell, the installation protection shell is fixed at the lower part of the light curtain body, the light curtain body naturally droops and extends out of the contraction cavity of the car door plate under the natural state of the reset spring, and the bottom of the installation protection shell presses the trigger rod, so that the bending part of the trigger rod is separated from the trigger plectrum of the microswitch. The installation protective housing has the effect of protection micro-gap switch, prevents the extrusion damage.

As a preferable example, a buffer gasket is arranged at a contact position between the mounting protective shell of the micro switch and the mounting bottom plate.

As a preferable example, a buffer gasket is arranged at a contact position between the trigger lever and the light curtain body.

The buffer gasket can relieve the collision noise generated at the position when the door panel of the elevator car is opened and closed.

The utility model has the beneficial effects that:

(1) when the light curtain body is installed on the car door plate through the connecting rod, the recovery assembly is added at the bottom of the light curtain body, and the elevator door protection effect of mechanical and photoelectric integration is realized through the relatively simple matching of the recovery assembly and the light curtain body;

(2) the recovery device is suitable for various installation sizes, the light curtain body has interchangeability and universality, installation, interchange and maintenance can be conveniently carried out on car door plates of different sizes and different manufacturers, the light curtain body is folded through the recovery assembly, the door opening distance when the elevator door is completely opened is increased, the light curtain body is not easy to be impacted and deformed, the protection device is caused to lose efficacy, and the service life of the elevator door protection device is prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a multi-link structure of the present invention;

FIG. 3 is a schematic view of a shield switch assembly according to the present invention;

FIG. 4 is a schematic view of the recovery assembly trigger microswitch of the present invention;

fig. 5 is a structural view showing a state of the retracting assembly when the car door panel is fully closed.

In the figure: sill 1, car door plant 2, mounting plate 3, connecting rod 4, light curtain body 5, retrieve subassembly 6, retrieve dog 601, micro-gap switch 602, retrieve connecting rod 603, trigger bar 604, reset spring 605, retrieve wheel 606, installation protective housing 607, shielding switch subassembly 7, shielding magnetic switch 701, mount pad 702, buffer spacer 8.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the utility model easy to understand, the utility model is further described with reference to the specific drawings.

Example 1

As shown in fig. 1-5, a simple and light elevator door protection device includes two car door panels 2 that are opened and closed relatively and installed on a sill 1 at an elevator doorway, a mounting base plate 3 is fixed on each car door panel 2, the mounting base plate 3 is connected with a telescopic light curtain body 5 through a plurality of connecting rods 4, a recycling assembly 6 installed at the bottom of the light curtain body 5, and a shielding switch assembly 7 installed on the light curtain body 5;

the light curtain body 5 is an integrated light curtain comprising a light curtain emitter or a light curtain receiver, the light curtain body 5 on one side adopts a light curtain type infrared emitter, and the light curtain body 5 on the other side adopts a light curtain type infrared receiver. 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 elevator can be prevented from people and things being jammed.

Adopt at least two the same and parallel connecting rods 4 with light curtain body 5 vertical connection on mounting plate 3, connecting rod 4 upper end is connected with light curtain body 5, and connecting rod 4 lower extreme is connected with mounting plate 3.

The recovery component 6 comprises a recovery block 601, a microswitch 602, a recovery connecting rod 603, a trigger rod 604, a reset spring 605 and a recovery wheel 606, the recovery block 601 is fixed at two sides of the elevator car sill 1, the microswitch 602 is fixed at the lower part of the light curtain body 5, the middle part of the recovery connecting rod 603 is hinged at the bottom of the mounting bottom plate 3, the trigger rod 604 is fixed at the upper end of the recovery connecting rod 603, the upper end of the trigger rod 604 is provided with a bending part corresponding to the position of a trigger plectrum of the microswitch 602, the upper end of the recovery connecting rod 603 is connected with the mounting bottom plate 3 through the reset spring 605, the lower end of the recovery connecting rod 603 is provided with the recovery wheel 606, when the elevator door is half opened, the light curtain body 5 and the recycling wheel 606 are free from external force, when the light curtain body 5 naturally droops and extends out of the car door panel 2, the bottom of the microswitch 602 falls on the trigger rod 604, and the bending part of the trigger rod 604 is separated from the trigger plectrum of the microswitch 602;

the shielding switch component 7 comprises a shielding magnetic switch 701 and a mounting seat 702 which are matched for use, and the shielding magnetic switch 701 and the mounting seat 702 are respectively fixed at corresponding positions of the two light curtain bodies 5. When the two light curtain bodies 5 are close to contact, the micro switch 602 is also triggered and generates a door opening signal, the door opening signal needs to be shielded to normally close the door, and the shielding switch assembly 7 can play a role in shielding the door opening signal of the micro switch 602.

Example 2

As shown in fig. 3, two sets of shielding switch assemblies 7 are disposed on the light curtain body 5. The other structure is the same as embodiment 1. Two sets of shielding switch subassemblies 7 can improve the reliability of shielding the signal of opening the door.

Example 3

As shown in fig. 4, the micro switch 602 is installed in the installation protection casing 607, the installation protection casing 607 is fixed at the lower part of the light curtain body 5, the light curtain body 5 naturally droops and extends out of the contraction cavity of the car door panel 2 in the natural state of the return spring 605, and the bottom of the installation protection casing 607 presses the trigger rod 604, so that the bending part of the trigger rod 604 is separated from the trigger paddle of the micro switch 602. The other structure is the same as embodiment 1. The mounting protective case 607 functions to protect the microswitch 602 from being damaged by the pressing.

Example 4

As shown in fig. 4 and 5, a buffer spacer 8 is provided at a contact portion between the mounting protective case 607 and the mounting base plate 3 of the microswitch 602. The other structure is the same as in example 3.

Example 5

As shown in fig. 4 and 5, a buffer spacer 8 is disposed at a contact portion between the trigger lever 604 and the light curtain body 5. The other structure is the same as embodiment 1.

The cushion pads 8 in

embodiments

4 and 5 can reduce collision noise generated in the opening and closing of the elevator car door panels 2.

The working principle is as follows:

(1) fully open state of elevator door

As shown in fig. 4, when the car door panel 2 is fully opened, the recovery stopper 601 pushes the recovery wheel 606 at the lower end of the recovery connecting rod 603, so that the trigger rod 604 at the upper end of the recovery connecting rod 603 triggers the micro switch 602 to generate a door opening signal, at this time, the light curtain body 5 is not triggered, the shielding switch assembly 7 is not triggered, the elevator door remains in a door opening state, and the door closing countdown is started.

(2) During the closing of the elevator door

The elevator door closes the door countdown end, and car door plant 2 begins to close, and at the closing process, there are two kinds of states:

a. normal off state, conditions are: infrared light rays between the light curtain bodies 5 are not shielded, the outer shell of the light curtain body 5 is not collided by external force, the multiple connecting rods do not act, the trigger piece of the microswitch 602 is not in contact with the trigger rod 604, the mounting protective shell 607 falls on the trigger rod 604, the microswitch 602 does not give a closing signal to the main control box, and the car door panel 2 maintains the closing action;

b. is triggered to reopen the state, provided that: when a person or an object enters, infrared light rays between the light curtain bodies 5 are shielded and/or the shell of the light curtain body 5 is collided by external force, the multi-connecting-rod acts, the trigger rod 604 triggers the micro switch 602, the micro switch 602 gives a door opening signal to the main control box, and the car door panel 2 is opened reversely.

(3) Closed state of elevator door

As shown in fig. 3 and 5, when the car door panel 2 tends to be closed, first, the two light curtain bodies 5 contact to trigger the shielding switch assembly 7 to send out a shielding signal (the shielding signal is used for shielding the door opening signal generated by the micro switch 602), then, the two light curtain bodies 5 are squeezed to a contracted state, the light curtain bodies 5 press the trigger rod 604, the trigger rod 604 rotates and triggers the micro switch 602 to generate the door opening signal, but the door opening signal is shielded by the shielding signal, so that the elevator door is kept in a closed state.

It has the following advantages:

(1) when the light curtain body 5 is installed on the car door plate 2 through the connecting rod 4, the recovery assembly 6 is additionally arranged at the bottom of the light curtain body 5, and the elevator door protection effect of mechanical and photoelectric integration is realized through the relatively simple matching of the recovery assembly 6 and the light curtain body 5;

(2) the recycling device is suitable for various installation sizes, the light curtain body 5 has interchangeability and universality, installation, interchange and maintenance of the car door plates 2 of different sizes and different manufacturers are facilitated, the light curtain body 5 is folded through the recycling assembly 6, the door opening distance when the elevator door is completely opened is increased, the light curtain body 5 is not prone to being impacted and deformed, the protection device is not prone to failure, and the service life of the elevator door protection device is prolonged.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A simple and light elevator door protection device comprises two oppositely-opened and closed car door plates arranged on a sill at an elevator door, wherein a mounting bottom plate is fixed on each car door plate and is connected with a telescopic light curtain body through a plurality of connecting rods;

the shielding switch assembly comprises a shielding magnetic control switch and a mounting seat which are matched with each other, and the shielding magnetic control switch and the mounting seat are respectively fixed at corresponding positions of the two light curtain bodies.

2. The elevator door protection device of claim 1, wherein two shielding switch assemblies are disposed on the light curtain body.

3. The simple and light elevator door protection device according to claim 1, wherein the micro switch is installed in a protection shell, the protection shell is fixed on the lower portion of the light curtain body, the light curtain body naturally droops and extends out of the contraction cavity of the car door panel under the natural state of the return spring, and the bottom of the protection shell presses the trigger rod, so that the bending portion of the trigger rod is separated from the trigger pull piece of the micro switch.

4. The elevator door protector of claim 3, wherein a buffer is provided at the contact between the protection shell and the bottom plate of the microswitch.

5. The elevator door protection device of claim 1, wherein a buffer pad is disposed at a contact position between the trigger bar and the light curtain body.