CN219296899U

CN219296899U - Leakage alarm system for elevator

Info

Publication number: CN219296899U
Application number: CN202223076153.3U
Authority: CN
Inventors: 韩东海
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-07-04
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to the technical field of elevator safety, in particular to a material leakage alarm system and a material leakage alarm method for an elevator, wherein the material leakage alarm system comprises an alarm module and a material leakage identification module, and the material leakage identification module is arranged at the bottom of an elevator car and is used for sending a signal to the alarm module when material leakage occurs at the bottom of the elevator car; the alarm module is used for giving an alarm after receiving the signal of the leakage identification module. According to the elevator leakage detection device, whether leakage exists in an elevator or not is detected through the leakage identification module at any time, and an alarm is given out through the alarm module in time when the leakage exists, so that workers are prompted, and the workers are evacuated as soon as possible, so that safety accidents are avoided.

Description

Leakage alarm system for elevator

Technical Field

The utility model relates to the technical field of elevator safety, in particular to a material leakage alarm system for an elevator.

Background

Construction elevators (hereinafter referred to as elevators) often also need to carry materials other than people, which, although loaded with containers, are present to fall inside the elevator, such as fine sand. The floor of the elevator car is usually sealed so that material does not leak out; however, if the elevator is used for a long time, the risk of cracks exists on the bottom plate, when the cracks are small, human eyes cannot directly identify the cracks, and if the elevator is used continuously, materials leak from the cracks to pollute an elevator shaft, and the risk of suddenly enlarging the cracks to enable personnel in the elevator car to be in dangerous environments exists.

Therefore, the crack needs to be found quickly in time, but no solution for solving the problem exists in the prior art, so that the safety of the existing elevator is still insufficient.

Disclosure of Invention

The utility model provides a material leakage alarm system for an elevator, which aims at the problems in the prior art and can timely detect the material leakage of the elevator and give an alarm prompt.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a material leakage alarm system for an elevator, which comprises an alarm module and a material leakage identification module,

the leakage identification module is arranged at the bottom of the elevator car and used for sending a signal to the alarm module when the bottom of the elevator car leaks;

the alarm module is used for giving an alarm after receiving the signal of the leakage identification module.

Further, leak material identification module includes protective housing, discernment net and tension detection device, and the protective housing sets up in the bottom of elevator car, and the discernment net is installed in the protective housing, and tension detection device is used for detecting the change of the tensile that discernment net received, and tension detection device is connected with the alarm module electricity.

Further, the identification net comprises a plurality of first tension wires and a plurality of second tension wires, the plurality of first tension wires are arranged side by side, the plurality of second tension wires are arranged side by side, and the first tension wires and the second tension wires are arranged in a crossing manner; the first tension wire and the second tension wire are both connected to the tension detection device.

Preferably, the tension detection device comprises a host, a plurality of first tension sensors and a plurality of second tension sensors, wherein the first tension sensors and the second tension sensors are all electrically connected with the host, the first tension sensors are connected with the first tension wires in a one-to-one correspondence manner, the second tension sensors are connected with the second tension wires in a one-to-one correspondence manner, and the host is used for collecting tension change information and sending signals to the alarm module according to the tension change information.

Still further, leak material identification module still includes the funnel, and the funnel sets up in the top of protective housing, and the funnel is connected in elevator car.

The utility model also provides a material leakage alarming method for the elevator, which comprises the following steps:

A. detecting whether the elevator car leaks materials or not through a leakage identification module;

B. when the elevator car leaks materials, the material leakage identification module sends signals to the alarm module, and the alarm module alarms.

Further, the step B specifically includes:

B1. when the elevator leaks materials, the materials enter the protective shell through the bottom of the elevator car and are contacted with one of the first tension wire and the second tension wire;

B2. the first tension wire/the second tension wire is triggered to change the tension force, so that the signals of the first tension sensor/the second tension sensor connected with the first tension wire/the second tension wire are changed;

B3. the host recognizes that the signals of the first tension sensor and the second tension sensor at the same moment are changed, judges that the elevator car leaks materials, and sends signals to the alarm module for alarm.

Further, a signal amplifier is arranged between the host machine and the first tension sensor/the second tension sensor;

in step B3, when the signal change of the first tension sensor/the second tension sensor is greater than the set value, the alarm signal is not triggered.

Further, step A0. is included to determine whether the elevator is in a lifting state, and if so, steps a and B are not performed, otherwise, the steps are performed.

Further, step C. After the alarm, the elevator is in a controlled state: the elevator is no longer button controlled and when the elevator door closes again, the elevator automatically lowers to the lowest level and after reaching the lowest level enters a stop state and no longer rises and falls.

The utility model has the beneficial effects that: according to the elevator leakage detection device, whether leakage exists in an elevator or not is detected through the leakage identification module at any time, and an alarm is given out through the alarm module in time when the leakage exists, so that workers are prompted, and the workers are evacuated as soon as possible, so that safety accidents are avoided.

Drawings

FIG. 1 is a schematic diagram of the present utility model.

Fig. 2 is an internal schematic view of the leakage identification module according to the present utility model.

Fig. 3 is a schematic view of the identification net and tension detecting device of the present utility model.

Fig. 4 is a flow chart of the present utility model.

Reference numerals: 1-alarm module, 2-leakage identification module, 3-protective housing, 4-identification net, 5-tension detection device, 6-funnel, 7-host computer, 41-first tension line, 42-second tension line, 51-host computer, 52-first tension sensor, 53-second tension sensor.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, the utility model provides a leakage alarm system for an elevator, which comprises an alarm module 1 and a leakage identification module 2,

the leakage identification module 2 is arranged at the bottom of the elevator car and is used for sending a signal to the alarm module 1 when the material at the bottom of the elevator car leaks;

the alarm module 1 is used for giving an alarm after receiving the signal of the missing material identification module 2.

The working steps are as follows:

A. detecting whether the elevator car leaks materials or not through a leakage identification module 2;

B. when the elevator car leaks materials, the material leakage identification module 2 sends signals to the alarm module 1, and the alarm module 1 alarms.

Specifically, the alarm module 1 and the leakage identification module 2 can be connected through the upper computer 7, the elevator car detection device is used for detecting the elevator car, namely, the elevator is basically at the bottom if leakage occurs, the leakage identification module 2 is used for detecting the bottom of the elevator, when leakage occurs, the leakage identification module 2 is necessarily triggered, then a signal is sent to the alarm module 1, the alarm module 1 is used for alarming, and staff is timely reminded to evacuate and check the elevator car.

The alarm module 1 may be a conventional structure, for example, a structure such as an alarm lamp and a buzzer is adopted for cooperation, and will not be described herein.

In this embodiment, the missing material identification module 2 includes a protective housing 3, an identification net 4 and a tension detection device 5, the protective housing 3 is disposed at the bottom of the elevator car, the identification net 4 is installed in the protective housing 3, the tension detection device 5 is used for detecting the tension variation suffered by the identification net 4, and the tension detection device 5 is electrically connected with the alarm module 1.

Namely, when the material leaks, the material will necessarily drop under the action of gravity, and the material will pass through the recognition net 4 and fall outside, only a small part of the material needs to touch the recognition net 4 at this time, and the tension detection device 5 can be triggered, so that a signal is sent to the alarm module 1 to alarm.

Specifically, the identification net 4 includes a plurality of first tension wires 41 and a plurality of second tension wires 42, the plurality of first tension wires 41 are arranged side by side with each other, the plurality of second tension wires 42 are arranged side by side with each other, and the first tension wires 41 are arranged to cross the second tension wires 42; the first tension wire 41 and the second tension wire 42 are connected to the tension detecting device 5.

Preferably, the tension detecting device 5 includes a main unit 51, a plurality of first tension sensors 52 and a plurality of second tension sensors 53 all electrically connected to the main unit 51, the plurality of first tension sensors 52 are connected to the plurality of first tension wires 41 in a one-to-one correspondence manner, the plurality of second tension sensors 53 are connected to the plurality of second tension wires 42 in a one-to-one correspondence manner, and the main unit 51 is configured to collect tension change information and send a signal to the alarm module 1 according to the tension change information.

The identification web 4 cooperates with the tension detecting device 5 as follows:

B1. when the elevator leaks out, the material enters the protective shell 3 through the bottom of the elevator car and contacts with one of the first tension wires 41/the second tension wires 42;

B2. the first tension wire 41/the second tension wire 42 is triggered to change the tension force, so that the signals of the first tension sensor 52/the second tension sensor 53 connected with the first tension wire are changed;

B3. the host 51 recognizes that the signals of the first tension sensor 52 and the second tension sensor 53 at the same time are changed, determines that the elevator car leaks, and sends a signal to the alarm module 1 to alarm.

Since the elevator car is subjected to force variations when loading and unloading materials, the identification network 4 and the tension detection device 5 are triggered, and if the material flow rate of the elevator car is very small when the material leakage occurs, the number of the first tension lines 41/the second tension lines 42 which can be triggered at the same time when the material leakage occurs is not large.

Based on the above, the utility model judges that the elevator is normally used only when part of the first tension sensor 52/the second tension sensor 53 is triggered, thereby avoiding false triggering.

Specifically, the first tension wire 41 and the second tension wire 42 do not contact each other, so that false alarm phenomenon caused by interference with each other is avoided.

Because shoes of workers in construction elevators, wheels of carriers and the like usually have a small amount of building materials such as silt, even if the workers hold the materials by the carriers, the materials still enter the elevator car, and after a certain accumulation of the materials, if the elevator car is cracked, the materials inevitably enter the protective shell 3 along the slit, and at the moment, the first tension line 41 and the second tension line 42 are distributed more tightly, so that the materials are certainly contacted with the first tension line 41/the second tension line 42 to trigger the first tension sensor 52/the second tension sensor 53, thereby achieving the effect of timely detecting leakage.

For larger cracks, it is not within the contemplation of the present utility model, as the worker may look directly through the naked eye. The utility model only detects the crack which has low material leakage speed and is difficult to be checked by naked eyes.

Specifically, the leakage identification module 2 further comprises a funnel 6, the funnel 6 is arranged at the top of the protective shell 3, and the funnel 6 is connected to the elevator car. The funnel 6 is collected to enable the area of the identification net 4 to be smaller, and leakage can be detected, so that the implementation cost of the utility model is reduced, and the funnel 6 is arranged to enable materials to be more concentrated, so that the probability of being identified is improved.

Specifically, a signal amplifier is provided between the host 51 and the first tension sensor 52/second tension sensor 53;

in step B3, when the signal change of the first tension sensor 52/the second tension sensor 53 is greater than the set value, the alarm signal is not triggered.

Since the touch force of the material to the recognition net 4 is very small, the signal needs to be amplified for recognition; the force change driven by the elevator during lifting or loading and unloading materials is very large, so that when the signal exceeds the threshold value, the elevator can be judged to be in a state of lifting or unloading materials or having insects lying on the identification network 4, and the tension change is not judged at the moment, so that the detection accuracy of the elevator is higher.

In this embodiment, step A0. is further included to determine whether the elevator is in a lifting state, and if so, steps a and B are not performed, otherwise, the steps are performed.

In this embodiment, it also includes step C. After the alarm, the elevator is in a control state: the elevator is no longer button controlled and when the elevator door closes again, the elevator automatically lowers to the lowest level and after reaching the lowest level enters a stop state and no longer rises and falls.

Correspondingly, when a crack is found, the alarm module 1 can alarm, at the moment, a worker can evacuate in time, and then the lifting mechanism is automatically controlled to act, so that the lifting mechanism drives the elevator to descend to the bottommost layer, and meanwhile, the elevator is locked and can not be lifted in a controlled manner; if and only if the staff checks and repairs the crack of the elevator car, the elevator can continue to normally run after the elevator is checked in and unlocked through the management account.

The present utility model is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present utility model.

Claims

1. A leak alarm system for an elevator, characterized by: comprises an alarm module and a missing material identification module,

the alarm module is used for alarming after receiving the signal of the leakage identification module;

the leakage identification module comprises a protection shell, an identification net and a tension detection device, wherein the protection shell is arranged at the bottom of the elevator car, the identification net is installed in the protection shell, the tension detection device is used for detecting tension change born by the identification net, and the tension detection device is electrically connected with the alarm module.

2. The leakage alarm system for an elevator according to claim 1, wherein: the identification net comprises a plurality of first tension wires and a plurality of second tension wires, the plurality of first tension wires are arranged side by side, the plurality of second tension wires are arranged side by side, and the first tension wires and the second tension wires are arranged in a crossing manner; the first tension wire and the second tension wire are both connected to the tension detection device.

3. The leakage alarm system for an elevator according to claim 2, wherein: the tension detection device comprises a host machine, a plurality of first tension sensors and a plurality of second tension sensors, wherein the first tension sensors and the second tension sensors are electrically connected with the host machine, the first tension sensors are connected with the first tension lines in one-to-one correspondence, the second tension sensors are connected with the second tension lines in one-to-one correspondence, and the host machine is used for collecting tension change information and sending signals to the alarm module according to the tension change information.

4. The leakage alarm system for an elevator according to claim 1, wherein: the leakage identification module further comprises a funnel, the funnel is arranged at the top of the protective shell, and the funnel is connected to the elevator car.