WO2018082106A1

WO2018082106A1 - Overweight alarm device for elevator car

Info

Publication number: WO2018082106A1
Application number: PCT/CN2016/104957
Authority: WO
Inventors: 陶晓毅
Original assignee: 江苏蒙哥马利电梯有限公司
Priority date: 2016-11-03
Filing date: 2016-11-08
Publication date: 2018-05-11
Also published as: CN206395659U

Abstract

An overweight alarm device for an elevator car comprises a car frame (3) and a pressure balance (10). A pulley bracket (2) and a pulley (1) are disposed on the top of the car frame (3). A track (4) is disposed on a side surface of the car frame (3). The pressure balance (10) is disposed on the bottom of the car frame (3). An upper bottom plate (5), an upper bottom plate contact (6), a lower bottom plate contact (7), a spring (8) and a lower bottom plate (9) are disposed on the pressure balance (10). A built-in circuit (11) is disposed in the lower bottom plate (9). A power supply module (12), a master control circuit (13), a storage module (14), a gravity computing module (15), an output module (16), a pressure sensor (17), a display module (18) and an alarm module (19) are disposed on the built-in circuit (11). A principle similar to an electronic scale is used on the device; when the gravity in the car reaches a set value, the built-in circuit (11) is switched on, and the alarm device gives out a signal indicating overweight, so as to remind a user of paying attention to safety.

Description

Elevator car overweight alarm device

Technical field

The utility model relates to the technical field of an alarm device, in particular to an elevator car overweight alarm device.

Background technique

Faced with the increasing number of elevators, the number of elevator failure events has increased, so the safe operation of elevators has received more and more attention. At present, during the operation of the elevator, overload phenomenon often occurs. Overloading will accelerate the aging of the elevator equipment, and there is a large potential safety hazard. This problem has not been solved, and an automatic alarm device has appeared.

When designing and manufacturing any elevator, it is necessary to specify the rated load capacity. This is not only a limitation on the carrying capacity of the elevator, but also the most basic guarantee for the normal and safe operation of the elevator. When the elevator is overloaded, various emergencies are prone to occur, resulting in accidental casualties. Therefore, when the elevator is overloaded, it is necessary to promptly remind the passengers in the car and issue instructions to make the elevator unable to operate. In order to realize the alarm function, a common technical solution is to install the overload warning device on the lower beam of the car frame.

When the number of elevators exceeds the rated number, the elevator will automatically alarm, such as the elevator weighing control device provided by the Chinese utility model with the announcement number: CN202508707U, which relates to the elevator control system, and specifically relates to an elevator weighing control device. . The elevator weighing control device comprises a car acceleration measuring instrument, a signal processing circuit, a car controller, an alarm unit and two weighing sensors, wherein the car acceleration measuring instrument and the two weighing sensors respectively pass the signal processing circuit Connected to the input of the car controller, the output of the car controller is connected to the elevator controller and the alarm unit, respectively. The special column has problems such as complicated structure, high design and manufacturing costs.

Some of the current elevators are not designed because of overweight, and the accidents caused by the overweight alarm devices are not sensitive enough.

Utility model content

The purpose of the utility model is to provide a pressure scale installed on the bottom of the elevator car. The principle of weighing things is similar, so that the weight inside the car can be more accurately weighed, when the internal weight of the car exceeds the original car. When the set safety load weight value is set, the alarm on the built-in circuit will issue an overweight alarm. At this time, the elevator car door cannot be closed, and an elevator car overweight alarm device is displayed through the display module to display the weight in the car. To solve the problems raised in the above background art.

In order to achieve the above object, the present invention provides the following technical solution: an elevator car overweight alarm device, including a car frame and a pressure scale, the top of the car frame is provided with a pulley bracket, and the pulley bracket is laterally welded to the car frame. The pulley bracket is provided with a pulley, and the pulley is directly welded to the pulley bracket by welding, a side of the car frame is provided with a rail, and a bottom of the car frame is provided with a pressure scale.

Preferably, the upper surface of the pressure scale is provided with an upper bottom plate, the reverse surface of the upper bottom plate is provided with upper bottom plate contacts, the lower bottom plate is provided with a lower bottom plate, and the lower bottom plate is provided with a lower bottom plate contact A spring is disposed between the upper bottom plate and the lower bottom plate, and a built-in circuit is disposed inside the lower bottom plate.

Preferably, the spring is arranged neatly between the upper bottom plate contact and the lower bottom plate contact, is not in contact with the upper bottom plate contact and the lower bottom plate contact, and one end of the spring is connected with the upper bottom plate, and the other end of the spring is The bottom plate is connected.

Preferably, the built-in circuit is provided with a power module, one end of the power module is connected to the main control circuit, one side of the main control circuit is connected to the storage module, and the other end of the main control circuit is connected to the gravity calculation module. One end of the gravity calculation module is connected to the pressure sensor, the power module, the main control circuit, the gravity calculation module, and the pressure sensor are connected in series, one side of the gravity calculation module is connected to the output module, and one end of the output module is connected to the display module. One side of the display module is connected to an alarm module, and the display module and the alarm module are connected in parallel with each other.

Preferably, the track is welded by channel steel.

Preferably, the pressure weight of the pressure scale is set to 1000 KG.

Preferably, the lower floor is welded to the bottom of the car frame, and the upper floor is free to move.

Compared with the prior art, the beneficial effects of the utility model are:

(1) Install the pressure scale on the bottom of the elevator car. Through the principle similar to weighing things, the weight inside the car can be more accurately weighed. When the internal weight of the car exceeds the safety load weight originally set by the car. At the time of the value, the alarm on the built-in circuit will give an overweight alarm. At this time, the elevator car door cannot be closed, and the weight in the car is displayed through the display module.

DRAWINGS

Figure 1 is a schematic view showing the structure of an elevator car of the present invention;

Figure 2 is a schematic view of the structure of the present invention;

Figure 3 is a schematic view of the structure of the present invention.

In the figure: 1, pulley; 2, pulley bracket; 3, car frame; 4, track; 5, upper floor; 6, upper floor contact; 7, lower floor contact; 8, spring; 9, lower floor; 10, pressure scale; 11, built-in circuit; 12, power module; 13, main control circuit; 14, storage module; 15, gravity calculation module; 16, output module; 17, pressure sensor; 18, display module; Module.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , the present invention provides a technical solution: an elevator car overweight alarm device, including a car frame 3 and a pressure scale 10, a pulley bracket 2 is arranged on the top of the car frame 3, and the pulley bracket 2 is laterally welded. On the car frame 3, a pulley 1 is arranged on the pulley bracket 2, and the pulley 1 is directly welded by welding. On the pulley bracket 2, the side of the car frame 3 is provided with a rail 4, the rail 4 is welded by channel steel, the bottom of the car frame 3 is provided with a pressure scale 10, and the alarm weight of the pressure scale 10 is set to 1000 KG.

Referring to FIG. 2, an upper bottom plate 5 is disposed above the pressure scale 10, and an upper bottom plate contact 6 is disposed on the reverse side of the upper bottom plate 5, and a lower bottom plate 9 is disposed below the upper bottom plate 5, and the lower bottom plate 9 is welded to the car frame 3 At the bottom, the upper bottom plate 5 is freely movable, and the bottom plate contact 7 is provided in the middle of the lower bottom plate 9, and a spring 8 is disposed between the upper bottom plate 5 and the lower bottom plate 9, and a built-in circuit 11 is provided inside the lower bottom plate 9.

The spring 8 is arranged neatly between the upper bottom plate contact 6 and the lower bottom plate contact 7, and is not in contact with the upper bottom plate contact 6 and the lower bottom plate contact 7. One end of the spring 8 is connected to the upper bottom plate 5, and the other end of the spring 8 is connected. Connected to the lower base plate 9.

Please refer to 3, the built-in circuit 11 is provided with a power module 12, one end of the power module 12 is connected to the main control circuit 13, one side of the main control circuit 13 is connected to the storage module 14, and the other end of the main control circuit 13 is connected to the gravity calculation module 15, One end of the gravity calculation module 15 is connected to the pressure sensor 17. The power module 12, the main control circuit 13, the gravity calculation module 15, and the pressure sensor 17 are connected in series. One side of the gravity calculation module 15 is connected to the output module 16, and the output module 16 is connected. One end of the display module 18 is connected to the display module 18, and one side of the display module 18 is connected to the alarm module 19. The display module 18 and the alarm module 19 are connected in parallel with each other.

The device installs the pressure scale on the bottom of the elevator car. Through the principle similar to weighing things, the weight inside the car can be more accurately weighed. When the weight of the car exceeds the safety load value originally set by the car. At the time, the alarm on the built-in circuit will give an overweight alarm, at which time the car door of the elevator cannot be closed, and the weight in the car is displayed through the display module.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.

Claims

An elevator car overweight alarm device comprises a car frame (3) and a pressure scale (10), characterized in that: the top of the car frame (3) is provided with a pulley bracket (2), a pulley bracket (2) Transversely welded to the car frame (3), the pulley bracket (2) is provided with a pulley (1), and the pulley (1) is directly welded to the pulley bracket (2) by welding, the car frame (3) The side of the car frame (3) is provided with a pressure rail (10).
The elevator car overweight alarm device according to claim 1, characterized in that: the upper surface of the pressure scale (10) is provided with an upper bottom plate (5), and the upper surface of the upper bottom plate (5) is provided with an upper bottom plate. a contact (6), a lower bottom plate (9) is disposed below the upper bottom plate (5), and a lower bottom plate contact (7) is disposed in the middle of the lower bottom plate (9), the upper bottom plate (5) and A spring (8) is disposed between the lower bottom plate (9), and a built-in circuit (11) is provided inside the lower bottom plate (9).
The elevator car overweight alarm device according to claim 1, wherein the spring (8) is arranged neatly between the upper bottom plate contact (6) and the lower bottom plate contact (7), and is not The upper bottom plate contact (6) and the lower bottom plate contact (7) are in contact, one end of the spring (8) is connected to the upper bottom plate (5), and the other end of the spring (8) is connected to the lower bottom plate (9).
The elevator car overweight alarm device according to claim 1, wherein the built-in circuit (11) is provided with a power module (12), and one end of the power module (12) is connected to the main control circuit ( 13), one side of the main control circuit (13) is connected to the storage module (14), and the other end of the main control circuit (13) is connected to the gravity calculation module (15), one end of the gravity calculation module (15) Connecting the pressure sensor (17), the power module (12), the main control circuit (13), the gravity calculation module (15), and the pressure sensor (17) are connected in series, and one side of the gravity calculation module (15) is connected and output Module (16), one end of the output module (16) is connected to the display module (18), one side of the display module (18) is connected to the alarm module (19), the display module (18), the alarm module (19) ) in parallel with each other.
An elevator car overweight warning device according to claim 1, wherein: The track (4) is welded by channel steel.
The elevator car overweight warning device according to claim 1, characterized in that the alarm weight of the pressure scale (10) is set to 1000 KG.
An elevator car overweight warning device according to claim 1, characterized in that the lower floor (9) is welded to the bottom of the car frame (3), and the upper floor (5) is freely movable.