CN114590673A - Elevator operation safety monitoring system and method - Google Patents
Elevator operation safety monitoring system and method Download PDFInfo
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- CN114590673A CN114590673A CN202210065758.8A CN202210065758A CN114590673A CN 114590673 A CN114590673 A CN 114590673A CN 202210065758 A CN202210065758 A CN 202210065758A CN 114590673 A CN114590673 A CN 114590673A
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- elevator box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses an elevator operation safety monitoring system and a method, belonging to the elevator operation monitoring field, the elevator operation safety monitoring system and the method are characterized in that a laser distance measuring sensor is fixedly arranged at the bottom of an elevator box body, the height of the elevator box body can be continuously and accurately measured, the laser distance measuring sensor continuously transmits a detected distance signal to a control terminal in a control box, the control terminal mutually analyzes and continuously calculates the ascending or descending speed of the elevator box body by comparing the time quantum in a time module, so as to monitor the ascending or descending speed of the elevator box body, avoid the damage caused by sudden descending or ascending of the elevator box body, simultaneously, an oxygen concentration sensor is fixedly arranged in the elevator box body, can detect the oxygen content in the elevator box body in real time, and avoid the situation that the oxygen content in the elevator box body cannot be detected in time after being reduced, the internal safety of the device during operation is guaranteed to a certain extent.
Description
Technical Field
The invention relates to the field of elevator operation monitoring, in particular to an elevator operation safety monitoring system and method.
Background
The box elevator is a special equipment which is built inside a high-rise building and used for people to come in and go out and goods to transport, is usually lifted and lifted by matching a motor arranged on the top layer with a balancing weight, and is usually provided with a safety detection system inside the elevator for ensuring the safety of the box elevator in the operation process.
Elevator operation safety detection system among the prior art, it comprises numerous sensors and control module usually, detect the running state of elevator through different sensors, however, in the in-service use process, the elevator operation in-process is influenced by accident, dangerous accident still can take place, current elevator operation safety detection system, when dangerous accident takes place at the elevator, can't in time monitor elevator internal environment, can't control elevator internal environment situation in real time when leading to the rescue, cause the influence to the security after the elevator accident easily.
Therefore, an elevator operation safety monitoring system and method are provided to solve the problems in the prior art.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an elevator operation safety monitoring system and method, which can realize real-time monitoring of the oxygen content in an elevator box body, can continuously and accurately measure the height of the elevator box body by fixedly installing a laser ranging sensor at the bottom of the elevator box body, continuously transmit a detected distance signal to a control terminal in a control box by the laser ranging sensor, mutually analyze and continuously calculate the ascending or descending speed of the elevator box body by comparing the time quantum in a time module by the control terminal so as to monitor the ascending or descending speed of the elevator box body, avoid the damage caused by sudden descending or ascending of the elevator box body, and simultaneously can carry out real-time detection on the oxygen content in the elevator box body by fixedly installing an oxygen concentration sensor in the elevator box body, the situation that the oxygen content in the elevator box body is reduced and cannot be detected in time is avoided, and the internal safety of the device during operation is guaranteed to a certain extent.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides an elevator operation safety monitoring system, includes the elevator box, the guide frame of vertical setting is installed to the left and right sides symmetry of elevator box, all rotate on the outer end wall of the left and right sides of elevator box and be connected with a plurality of guide wheels of laminating mutually with the guide frame, fixed mounting has the control box on the outer end wall of elevator box, fixed mounting has laser range sensor on the outer end wall of the bottom of elevator box, the inside of control box is including control terminal and time module, the internally mounted of elevator box has oxygen concentration sensor.
Further, an infrared generator is fixedly mounted on the outer end wall of the elevator box body, a plurality of infrared receivers which correspond to the infrared generator are fixedly mounted on the guide frame, a main control terminal is fixedly mounted on the elevator box body, and the plurality of infrared receivers are electrically connected with the main control terminal through wires.
Furthermore, the number of the infrared generators is two, the two infrared generators are respectively and symmetrically and fixedly installed on the outer end walls of the upper side and the lower side of the elevator box body, and the plurality of infrared receivers are respectively arranged on the upper side and the lower side of the inner part of each floor in a pairwise corresponding mode.
Furthermore, a vibration sensor is fixedly installed inside the guide frame and electrically connected with the main control terminal through a lead.
Furthermore, the middle positions of the outer end walls of the left side and the right side of the elevator box body are symmetrically fixed with brake assemblies, each brake assembly comprises an electric telescopic rod transversely and fixedly installed on the outer end wall of the elevator box body and a brake rubber mat fixed to the telescopic end of the electric telescopic rod, and the brake rubber mats are aligned with the guide frame.
Furthermore, an air inlet communicated with the inside of the elevator box body is formed in the outer end wall of the back face of the elevator box body, a plurality of first fans are uniformly fixed inside the air inlet, an air outlet communicated with the inside of the elevator box body is formed in the outer end wall of the top of the elevator box body, a second fan is fixedly mounted inside the air outlet, a support is fixedly mounted at the position of the opening of the top of the air outlet, and the oxygen concentration sensor is fixedly mounted in the middle of the support.
Further, logical groove has been seted up on the left and right sides inner end wall of elevator box, and the inside fixed mounting who leads to the groove has the oxygen supply pipe of vertical setting, and the inside fixed mounting of elevator box has the retort that is linked together with two oxygen supply pipes, and the inside of retort is filled with potassium permanganate reagent, and the outside cover of retort is equipped with the electric heating board.
Further, seted up the storage storehouse on the back face inner end wall of elevator box, and the storage storehouse is close to one side rotation that is connected with the dodge gate in the inner end wall of elevator box, and the inside fixed mounting in storage storehouse has a connecting sleeve, and the top of connecting sleeve is linked together through pipeline and two oxygen supply pipes, retort threaded connection is in connecting sleeve's bottom, electric heating board fixed mounting is in the inside in storage storehouse.
Furthermore, a storage battery pack is fixedly mounted at the top of the elevator box body, the control box is electrically connected with the storage battery pack through a lead, a first wireless transmission module electrically connected with the control terminal is further arranged inside the control box, and a second wireless transmission module is electrically connected to the outer side of the main control terminal.
A method for monitoring the running safety of an elevator comprises the following steps:
s1, speed detection, namely, measuring the distance below the elevator through a laser distance measuring sensor arranged at the bottom of the elevator box body, transmitting a generated signal to a control terminal in a control box, and judging the moving speed of the device by combining a time module to ensure that the ascending or descending speed of the elevator box body is within a safety limit;
s2, emergency braking, wherein when the lifting speed of the elevator box body exceeds a safety limit, the braking components arranged on the outer end walls of the left side and the right side of the elevator box body are started, the electric telescopic rod is started to drive the braking rubber pads fixed on the telescopic ends of the electric telescopic rod to be attached to the guide frame, and emergency braking is carried out when the elevator box body abnormally moves through friction collision;
s3, accurately positioning, wherein under normal conditions, infrared generators arranged on the upper side and the lower side of the elevator continuously emit infrared laser, when the elevator box body is in a stagnation state, a vibration sensor arranged on a guide frame cannot detect a vibration signal, an infrared receiver arranged at a corresponding position on the guide frame is controlled to start receiving, the accuracy of the stop position of the elevator box body is judged, and if the infrared receiver does not receive the laser emitted from the infrared generator, a main control terminal receives an abnormal signal and emits an alarm prompt;
s4, detecting oxygen content, namely electrifying and starting a first fan arranged in an air inlet and a second fan arranged in an air outlet, sucking air outside the elevator box into the elevator box, and sucking the air inside the elevator box outwards to form air circulation flow, wherein an oxygen concentration sensor arranged in the air outlet detects the oxygen content of the discharged air so as to detect the oxygen content in the elevator box in time;
s5, initiative oxygen supply, when oxygen concentration sensor detects that the outer oxygen content of air outlet department is not enough, the electric heating plate circular telegram of establishing in the retort outside generates heat, heats the inside of retort, and under high temperature state, the inside potassium permanganate reagent that loads of retort decomposes, and inside oxygen that its decomposition produced passed through the pipeline and gets into oxygen supply pipe, supplied to inside the elevator box through oxygen supply pipe, avoided inside the oxygen supply of elevator box to lead to the rescue to receive the influence.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the elevator box body can stably move up and down along the guide frame through the guide of the guide frame arranged on the outer side of the elevator box body and the guide wheel on the outer end wall of the elevator box body, when the elevator box body moves, the height of the elevator box body can be continuously and accurately measured through the laser ranging sensor fixed at the bottom of the elevator box body, the laser ranging sensor continuously transmits a detected distance signal to the control terminal in the control box, the time quantum in the time module is compared through the control terminal, the ascending or descending speed of the elevator box body is continuously calculated through mutual analysis, so that the ascending or descending speed of the elevator box body is conveniently monitored, the damage caused by sudden descending or ascending of the elevator box body is avoided, meanwhile, the oxygen content in the elevator box body can be detected in real time through fixedly arranging the oxygen concentration sensor in the elevator box body, the situation that the oxygen content in the elevator box body is reduced and cannot be detected in time is avoided, and the internal safety of the device during operation is guaranteed to a certain extent.
(2) Through with infrared generator fixed mounting on the outer end wall of elevator box, and will with a plurality of infrared receiver fixed mounting that infrared generator is corresponding on the guide frame, through the signal reception transmission between infrared generator and the infrared receiver, can carry out accurate judgement to the stop position of elevator box, effectually avoid the abnormal dislocation back of elevator box unable discovery in time, fix on the outer end wall of the upper and lower both sides of elevator box through two infrared generator symmetries, and with two liang of settings rather than corresponding of a plurality of infrared receiver, can further promote the device to the accurate nature in location of elevator box stop position, effectual position when moving to elevator box carries out accurate monitoring.
(3) Through the inside with shock sensor fixed mounting at the guide frame, can collect the shock signal of elevator box removal in-process through shock sensor, and with shock signal transmission to main control terminal's inside, control infrared receiver is to opening and close of signal reception on the infrared generator, effectively do benefit to the relevance between the each monitoring signal of guarantee the device, and simultaneously, through the analysis of main control terminal to the shock signal of collecting on the shock sensor, can further monitor and judge the running state of elevator box, be favorable to guaranteeing the device operating stability.
(4) Through fixing the braking subassembly symmetry on the outer end wall of the left and right sides of elevator box, when the emergency braking need be carried out to elevator box operation in-process, electric telescopic handle drives its flexible end of serving fixed braking cushion through the start and removes, make the braking cushion hug closely on the guide frame, form friction braking, effectual security when having ensured the abnormal lift of elevator box, and simultaneously, the symmetry sets up the braking subassembly of end wall intermediate position department outside elevator box, the equilibrium of going up the lower extreme when can ensure elevator box emergency braking.
(5) Through the inside with first fan and second fan difference fixed mounting at air intake and air outlet, can be through the start-up of first fan and second fan, respectively with the inside of outside air suction to elevator box, and outwards take out the inside air of elevator box, form the circulation flow of air, guarantee the inside circulation of air stability of elevator box, can avoid elevator box abnormal work time, inside air current is not smooth to lead to the passenger to take place to stifle danger, and simultaneously, through with oxygen concentration sensor fixed mounting on air outlet inner support, can effectually promote the accurate nature of oxygen concentration sensor to the inside oxygen content detection of elevator box.
(6) Through supplying oxygen pipe fixed mounting in the logical groove of seting up on the inner end wall of the elevator box left and right sides to supply two oxygen pipes and the fixed intercommunication of retort that is filled with potassium permanganate reagent, when oxygen concentration sensor detected the inside oxygen content of elevator box not enough, the electric heating board circular telegram that the cover was established in the retort outside starts to add thermal decomposition to the potassium permanganate reagent of retort inside, the oxygen that produces after the decomposition is through supplying oxygen pipe input to inside the elevator box, the effectual inside security of elevator box under the emergency that has promoted.
(7) Through installing the retort in the storage storehouse of seting up on the inner wall of elevator box back to rotate the dodge gate and connect in one side that the storage storehouse is close to in the inner wall of elevator box, cooperate threaded connection between retort and the connecting sleeve, the effectual convenience that has promoted inside potassium permanganate reagent later stage of retort and has changed.
(8) Through providing the power at the top of elevator box with storage battery fixed mounting for the control box for elevator box is inside can independently supply power in the short time, thereby has further promoted the inside security of elevator box, constitutes the inside and outside signal transmission of elevator box through wireless transmission module one and wireless transmission module two, has effectually ensured the device signal transmission's under the emergency stability.
Drawings
FIG. 1 is a circuit flow diagram of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a bottom perspective view of the present invention;
FIG. 4 is a side view of the present invention;
FIG. 5 is a side cross-sectional view of the present invention;
FIG. 6 is a schematic view of the structure at A in FIG. 5;
FIG. 7 is a top view of the present invention;
FIG. 8 is a bottom view of the present invention;
FIG. 9 is a perspective view showing the structure of an oxygen supplying tube and a reaction tank according to the present invention;
fig. 10 is a schematic view of the assembled structure of the present invention.
The reference numbers in the figures illustrate:
1. an elevator car body; 101. a guide frame; 102. a guide wheel; 2. a control box; 201. a laser ranging sensor; 202. an infrared generator; 203. an infrared receiver; 204. a shock sensor; 3. a brake assembly; 4. an air inlet; 401. a first fan; 402. an air outlet; 403. a second fan; 404. an oxygen concentration sensor; 5. an oxygen supply tube; 501. a reaction tank; 502. a potassium permanganate reagent; 503. an electrical heating plate; 504. a storage bin; 505. a movable door; 506. a connecting sleeve; 6. and (5) a storage battery pack.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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 embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-10, an elevator operation safety monitoring system comprises an elevator box 1, guide frames 101 which are vertically arranged are symmetrically installed on the left side and the right side of the elevator box 1, a plurality of guide wheels 102 which are attached to the guide frames 101 are rotatably connected to outer end walls on the left side and the right side of the elevator box 1, a control box 2 is fixedly installed on the outer end wall of the elevator box 1, a laser ranging sensor 201 is fixedly installed on the outer end wall of the bottom of the elevator box 1, a control terminal and a time module are arranged in the control box 2, and an oxygen concentration sensor 404 is installed in the elevator box 1.
When the device works, the elevator box body 1 can stably move up and down along the guide frame 101 by the guide of the guide frame 101 arranged outside the elevator box body 1 and the guide wheel 102 arranged on the outer end wall of the elevator box body 1, when the elevator box body 1 moves, the height of the elevator box body 1 can be continuously and accurately measured by the laser ranging sensor 201 fixed at the bottom of the elevator box body 1, the laser ranging sensor 201 continuously transmits a detected distance signal to the control terminal in the control box 2, the ascending or descending speed of the elevator box body 1 is continuously calculated by mutual analysis by comparing the time quantum in the time module by the control terminal, so that the ascending or descending speed of the elevator box body 1 is conveniently monitored, the damage caused by the sudden descending or ascending of the elevator box body 1 is avoided, and meanwhile, the oxygen concentration sensor 404 is fixedly arranged in the elevator box body 1, can carry out real-time detection to the inside oxygen content of elevator box 1, avoid the inside oxygen content of elevator box 1 to reduce the back unable timely detection, guarantee the inside security when the device moves to a certain extent.
Referring to fig. 2, an infrared generator 202 is fixedly installed on an outer end wall of an elevator box 1, a plurality of infrared receivers 203 corresponding to the infrared generator 202 are fixedly installed on a guide frame 101, a main control terminal is fixedly installed on the elevator box 1, and the plurality of infrared receivers 203 are electrically connected with the main control terminal through wires.
Referring to fig. 5 and 10, two infrared generators 202 are arranged, the two infrared generators 202 are symmetrically and fixedly mounted on the outer end walls of the upper side and the lower side of the elevator box 1 respectively, and the infrared receivers 203 are correspondingly arranged on the upper side and the lower side of each floor respectively in pairs.
Referring to fig. 2-3, the vibration sensor 204 is fixedly installed inside the guide frame 101, and the vibration sensor 204 is electrically connected to the main control terminal through a wire, when the device works, the vibration sensor 204 is fixedly installed inside the guide frame 101, so that a vibration signal generated during the moving process of the elevator box 1 can be collected through the vibration sensor 204 and transmitted to the inside of the main control terminal, and the on/off of the infrared receiver 203 on the infrared generator 202 for signal receiving is controlled, thereby effectively facilitating the guarantee of the relevance among monitoring signals of the device, and meanwhile, the running state of the elevator box 1 can be further monitored and judged through the analysis of the vibration signal collected on the vibration sensor 204 by the main control terminal, thereby facilitating the guarantee of the running stability of the device.
Referring to fig. 2-4, the middle position of the outer end walls of the left and right sides of the elevator car 1 is symmetrically fixed with a brake assembly 3, and the brake assembly 3 comprises an electric telescopic rod transversely and fixedly arranged on the outer end wall of the elevator box body 1 and a brake rubber pad fixed at the telescopic end of the electric telescopic rod, the brake rubber pad is aligned with the guide frame 101, when the device works, the braking components 3 are symmetrically fixed on the outer end walls of the left side and the right side of the elevator box body 1, when the elevator box body 1 needs emergency braking in the running process, the electric telescopic rod drives the braking rubber pad fixed on the telescopic end of the electric telescopic rod to move by starting, so that the brake rubber pad is tightly attached to the guide frame 101 to form friction brake, thereby effectively ensuring the safety of the elevator box 1 during abnormal lifting, and simultaneously, the brake components 3 symmetrically arranged at the middle positions of the outer end walls of the elevator box body 1 can ensure the balance of the upper end and the lower end of the elevator box body 1 during emergency braking.
Referring to fig. 3 and 5, an air inlet 4 communicated with the inside of the elevator case 1 is formed in the outer end wall of the back surface of the elevator case 1, a plurality of first fans 401 are uniformly fixed in the air inlet 4, an air outlet 402 communicated with the inside of the elevator case 1 is formed in the outer end wall of the top of the elevator case 1, a second fan 403 is fixedly installed in the air outlet 402, a bracket is fixedly installed at the opening of the top of the air outlet 402, and an oxygen concentration sensor 404 is fixedly installed in the middle of the bracket, when the device is in operation, the first fan 401 installed in the air inlet 4 and the second fan 403 installed in the air outlet 402 are simultaneously powered on and started to respectively draw outside air into the elevator case 1 and draw the air out from the inside of the elevator case 1 to form air circulation flow, thereby ensuring the air circulation stability in the elevator case 1 and avoiding abnormal operation of the elevator case 1, the danger of suffocation occurs to the passenger because of unsmooth internal airflow, and meanwhile, the oxygen concentration sensor 404 is fixedly installed on the inner support of the air outlet 402, so that the accuracy of the oxygen concentration sensor 404 for detecting the oxygen content in the elevator box body 1 can be effectively improved.
Referring to fig. 5 and 9, through grooves are formed on the inner end walls of the left and right sides of the elevator car 1, the oxygen supply pipes 5 longitudinally arranged are fixedly installed inside the through grooves, the reaction tanks 501 communicated with the two oxygen supply pipes 5 are fixedly installed inside the elevator car 1, potassium permanganate reagent 502 is filled in the reaction tanks 501, and the electric heating plates 503 are sleeved outside the reaction tanks 501, when the device works, the oxygen supply pipes 5 are fixedly installed in the through grooves formed on the inner end walls of the left and right sides of the elevator car 1, the two oxygen supply pipes 5 are fixedly communicated with the reaction tanks 501 filled with the potassium permanganate reagent 502, when the oxygen concentration sensor 404 detects that the oxygen content in the elevator car 1 is insufficient, the electric heating plates 503 sleeved outside the reaction tanks 501 are electrified to start heating and decomposing the potassium permanganate reagent 502 in the reaction tanks 501, and oxygen generated after decomposition is input into the elevator car 1 through the oxygen supply pipes 5, the safety inside the elevator car 1 in an emergency is effectively improved.
Referring to fig. 5-6, a storage bin 504 is arranged on the inner end wall of the back surface of the elevator box 1, a movable door 505 is rotatably connected to one side of the storage bin 504 close to the inner end wall of the elevator box 1, a connecting sleeve 506 is fixedly arranged inside the storage bin 504, the top of the connecting sleeve 506 is communicated with the two oxygen supply pipes 5 through a pipeline, the reaction tank 501 is in threaded connection with the bottom of the connecting sleeve 506, and an electric heating plate 503 is fixedly arranged inside the storage bin 504.
Please refer to fig. 2, a storage battery pack 6 is fixedly mounted at the top of the elevator box 1, the control box 2 is electrically connected with the storage battery pack 6 through a wire, a first wireless transmission module electrically connected with the control terminal is further included inside the control box 2, a second wireless transmission module is electrically connected with the outside of the main control terminal, when the device works, the storage battery pack 6 is fixedly mounted at the top of the elevator box 1 to provide power for the control box 2, so that the inside of the elevator box 1 can be independently supplied with power in a short time, thereby further improving the safety inside of the elevator box 1, signal transmission inside and outside the elevator box 1 is formed through the first wireless transmission module and the second wireless transmission module, and the stability of signal transmission of the device in emergency is effectively guaranteed.
Referring to fig. 1-10, a method for monitoring the operation safety of an elevator includes the following steps:
s1, speed detection, namely, measuring the distance below the elevator through the laser distance measuring sensor 201 installed at the bottom of the elevator box body 1, transmitting the generated signal to a control terminal in the control box 2, and judging the moving speed of the device by combining a time module to ensure that the ascending or descending speed of the elevator box body 1 is within a safety limit;
s2, emergency braking, wherein when the lifting speed of the elevator box body 1 exceeds a safety limit, the braking components 3 arranged on the outer end walls of the left side and the right side of the elevator box body 1 are started, the electric telescopic rod is started to drive the braking rubber pads fixed on the telescopic ends of the electric telescopic rod to be attached to the guide frame 101, and emergency braking is carried out when the elevator box body 1 abnormally moves through friction;
s3, accurate positioning is carried out, under normal conditions, infrared lasers are continuously emitted by infrared generators 202 arranged on the upper side and the lower side of the elevator box body, when the elevator box body 1 is in a stagnation state, a vibration sensor 204 arranged on a guide frame 101 cannot detect a vibration signal, an infrared receiver 203 arranged at a corresponding position on the guide frame 101 is controlled to start receiving, the accuracy of the stopping position of the elevator box body 1 is judged, and if the infrared receiver 203 does not receive the lasers emitted by the infrared generators 202, a main control terminal receives an abnormal signal and emits an alarm prompt;
s4, detecting oxygen content, namely electrifying and starting a first fan 401 arranged inside an air inlet 4 and a second fan 403 arranged inside an air outlet 402, sucking air outside the elevator box body 1 into the elevator box body, and sucking air inside the elevator box body 1 out to form air circulation flow, and detecting the oxygen content of the discharged air by an oxygen concentration sensor 404 arranged inside the air outlet 402 so as to detect the oxygen content inside the elevator box body 1 in time;
s5, active oxygen supply, when the oxygen concentration sensor 404 detects that the oxygen content discharged from the air outlet 402 is insufficient, the electric heating plate 503 sleeved outside the reaction tank 501 is electrified to generate heat, the inside of the reaction tank 501 is heated, under a high-temperature state, the potassium permanganate reagent 502 filled in the reaction tank 501 is decomposed, oxygen generated by decomposition enters the oxygen supply pipe 5 through the pipeline, the oxygen is supplied to the interior of the elevator box body 1 through the oxygen supply pipe 5, and the situation that the rescue is influenced due to insufficient oxygen supply in the interior of the elevator box body 1 is avoided.
The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides an elevator operation safety monitoring system, includes elevator box (1), guide frame (101) of vertical setting are installed to the left and right sides symmetry of elevator box (1), all rotate on the outer end wall of the left and right sides of elevator box (1) and be connected with a plurality of guide wheels (102) of laminating mutually with guide frame (101), its characterized in that: the elevator is characterized in that a control box (2) is fixedly mounted on the outer end wall of the elevator box body (1), a laser ranging sensor (201) is fixedly mounted on the outer end wall of the bottom of the elevator box body (1), the control box (2) comprises a control terminal and a time module, and an oxygen concentration sensor (404) is mounted inside the elevator box body (1).
2. The elevator operation safety monitoring system according to claim 1, wherein: the elevator car body is characterized in that an infrared generator (202) is fixedly mounted on the outer end wall of the elevator car body (1), a plurality of infrared receivers (203) which correspond to the infrared generator (202) are fixedly mounted on the guide frame (101), a main control terminal is fixedly mounted on the elevator car body (1), and the infrared receivers (203) are electrically connected with the main control terminal through wires.
3. An elevator operation safety monitoring system according to claim 2, characterized in that: the elevator is characterized in that the number of the infrared generators (202) is two, the two infrared generators (202) are respectively and symmetrically and fixedly installed on the outer end walls of the upper side and the lower side of the elevator box body (1), and the infrared receivers (203) are respectively arranged on the upper side and the lower side of the inner part of each floor in a pairwise corresponding mode.
4. The elevator operation safety monitoring system according to claim 1, wherein: the vibration sensor (204) is fixedly installed inside the guide frame (101), and the vibration sensor (204) is electrically connected with the main control terminal through a lead.
5. The elevator operation safety monitoring system according to claim 1, wherein: the elevator car body (1) is characterized in that brake assemblies (3) are symmetrically fixed at the middle positions of the outer end walls of the left side and the right side of the elevator car body (1), each brake assembly (3) comprises an electric telescopic rod transversely and fixedly installed on the outer end wall of the elevator car body (1) and a brake rubber mat fixed to the telescopic end of the electric telescopic rod, and the brake rubber mats are aligned to the guide frame (101).
6. The elevator operation safety monitoring system according to claim 1, wherein: the elevator is characterized in that an air inlet (4) communicated with the inside of the elevator box body (1) is formed in the outer end wall of the back face of the elevator box body (1), a plurality of first fans (401) are uniformly fixed inside the air inlet (4), an air outlet (402) communicated with the inside of the elevator box body is formed in the outer end wall of the top of the elevator box body (1), a second fan (403) is fixedly installed inside the air outlet (402), a support is fixedly installed at the opening of the top of the air outlet (402), and an oxygen concentration sensor (404) is fixedly installed in the middle of the support.
7. The elevator operation safety monitoring system according to claim 1, wherein: seted up logical groove on the left and right sides inner end wall of elevator box (1), and the inside fixed mounting who leads to the groove has oxygen supply pipe (5) of vertical setting, the inside fixed mounting of elevator box (1) has retort (501) that are linked together with two oxygen supply pipes (5), and the inside of retort (501) is filled with potassium permanganate reagent (502), the outside cover of retort (501) is equipped with electric heating board (503).
8. An elevator operation safety monitoring system according to claim 7, wherein: storage bin (504) have been seted up on the back inside end wall of elevator box (1), and storage bin (504) are close to one side rotation that is connected with dodge gate (505) in elevator box (1) inner end wall, the inside fixed mounting of storage bin (504) has connecting sleeve (506), and the top of connecting sleeve (506) is linked together through pipeline and two oxygen supply pipes (5), retort (501) threaded connection is in the bottom of connecting sleeve (506), electric heating board (503) fixed mounting is in the inside of storage bin (504).
9. An elevator operation safety monitoring system according to claim 2, characterized in that: the elevator car body is characterized in that a storage battery pack (6) is fixedly mounted at the top of the elevator car body (1), the control box (2) is electrically connected with the storage battery pack (6) through a wire, a first wireless transmission module electrically connected with a control terminal is further arranged inside the control box (2), and a second wireless transmission module is electrically connected to the outer side of the main control terminal.
10. The method for monitoring the operation safety of the elevator according to any of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, detecting the speed, namely measuring the distance below the elevator through a laser distance measuring sensor (201) arranged at the bottom of the elevator box body (1), transmitting a generated signal to a control terminal in the control box (2), and judging the moving speed of the device by combining the time module to ensure that the ascending or descending speed of the elevator box body (1) is within a safety limit;
s2, emergency braking, wherein when the lifting speed of the elevator box body (1) exceeds a safety limit, the braking assemblies (3) arranged on the outer end walls of the left side and the right side of the elevator box body (1) are started, the electric telescopic rod is started to drive the braking rubber pads fixed on the telescopic ends of the electric telescopic rod to be attached to the guide frame (101), and emergency braking is performed when the elevator box body (1) abnormally moves through friction interference;
s3, accurately positioning, wherein under normal conditions, the infrared generators (202) arranged on the upper side and the lower side of the elevator car continuously emit infrared laser, when the elevator car body (1) is in a stagnation state, the vibration sensor (204) arranged on the guide frame (101) cannot detect a vibration signal, the infrared receiver (203) arranged at a corresponding position on the guide frame (101) is controlled to start receiving, the accuracy of the stop position of the elevator car body (1) is judged, and if the infrared receiver (203) does not receive the laser emitted from the infrared generator (202), the master control terminal receives an abnormal signal and emits an alarm prompt;
s4, detecting oxygen content, namely powering on and starting a first fan (401) installed inside the air inlet (4) and a second fan (403) installed inside the air outlet (402), sucking air outside the elevator box body (1) into the elevator box body, and sucking air inside the elevator box body (1) outwards to form circular flow of the air, wherein an oxygen concentration sensor (404) installed inside the air outlet (402) detects the oxygen content of the discharged air so as to detect the oxygen content inside the elevator box body (1) in time;
s5, initiative oxygen supply, work as oxygen concentration sensor (404) detect the outer oxygen content of arranging in air outlet (402) department and when not enough, the cover is established the electric heating board (503) circular telegram in retort (501) outside is generated heat, it is right the inside of retort (501) is heated, under high temperature state, potassium permanganate reagent (502) that retort (501) inside was loaded decompose, and the oxygen that its decomposition produced passes through the pipeline and gets into inside oxygen supply pipe (5), through inside oxygen supply pipe (5) supply to elevator box (1), avoid elevator box (1) inside oxygen supply is not enough to lead to the rescue to receive the influence.
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| CN202210065758.8A CN114590673A (en) | 2022-01-20 | 2022-01-20 | Elevator operation safety monitoring system and method |
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Application publication date: 20220607 |