CN111942986B

CN111942986B - Intelligent detection method for gap between elevator car door vane and landing door sill

Info

Publication number: CN111942986B
Application number: CN202010833112.0A
Authority: CN
Inventors: 阮一晖; 陈雪明; 骆伟
Original assignee: Special Equipment Safety Supervision Inspection Institute of Jiangsu Province
Current assignee: Special Equipment Safety Supervision Inspection Institute of Jiangsu Province
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2022-03-22
Anticipated expiration: 2039-07-15
Also published as: CN110316632B; CN110316632A; CN111942986A

Abstract

The invention relates to the technical field of elevator maintenance, and discloses an intelligent detection method for a gap between an elevator car door vane and a landing door sill. When the car door vane moves to the landing sill position of each floor, the photoelectric sensor is triggered by the magnetic strip of the corresponding floor to send a switching value signal; driving a laser ranging sensor to measure the distance according to the switching value signal; and judging whether the corresponding gap is in a preset range or not according to the gap measured by the laser ranging sensor, and if not, giving an alarm. The elevator car door knife and landing door sill gap measuring device utilizes the magnetic strip, the photoelectric sensor, the laser ranging sensor and the sucker device to renovate the measurement of the elevator car door knife and landing door sill gap, effectively solves the difficulty of low detection efficiency caused by long-term use of a traditional instrument by detection personnel, greatly improves the measurement efficiency of the elevator car door knife and landing door sill gap in a high-rise building, and effectively ensures the safety of the detection personnel.

Description

Intelligent detection method for gap between elevator car door vane and landing door sill

The invention relates to a divisional application of an intelligent detector for a gap between an elevator car door vane and a landing door sill, which has the application number of CN201910633192.2 and the application date of 2019/07/15.

Technical Field

The invention relates to the technical field of elevator maintenance, in particular to an intelligent detection method for a gap between an elevator car door vane and a landing door sill.

Background

The safety performance of an elevator as a special equipment for carrying people and goods is widely concerned by society, which puts higher and higher requirements on the inspection capability of a special equipment inspection mechanism and the construction quality of an elevator construction unit. The TSG T7001-2009 elevator supervision and inspection and periodic inspection rule-traction and forced drive elevator stipulates that the gap between the car door vane and the landing sill should be not less than 5 mm.

At present, the traditional inspection method is that an inspector operates an elevator to the position where a landing sill and a car door vane are opposite under the cooperation of a maintenance worker, and a steel ruler is used for measuring and reading out the horizontal gap between the landing sill and the car door vane. The traditional method has the following defects: 1. there is a security risk. At the moment, when an inspector operates the maintenance box on the car top to enable the elevator to run, the inspector usually judges the relative position of the car door knife and the landing door sill according to the feeling of the inspector, and meanwhile, lowers the head to observe the relative position, so that certain risk is brought to the safety of the inspector. 2. For high-rise elevators, the inspection efficiency is low. For short-rise buildings, the traditional method is simple and easy to implement, but with the acceleration of the urbanization process, more and more high-rise buildings are pulled out of the ground, and for the high-rise buildings, inspection personnel on each floor need to measure the gap between the landing sill and the car door vane at the landing, so that the problems of long inspection time consumption and low inspection efficiency are inevitably brought.

The traditional inspection method is difficult to meet the requirements of the current inspection and is not beneficial to the health and scientific development of special inspection businesses. In order to improve the inspection efficiency, particularly the inspection efficiency of the gap between the car door vane and the landing door sill, a novel detection instrument and a detection method thereof are developed.

Disclosure of Invention

Aiming at the technical problem, the invention provides an intelligent detection method for the gap between an elevator car door vane and a landing door sill, which takes a photoelectric sensor and a laser ranging sensor as signal acquisition modes, does not need to enter a landing door entrance of a waiting hall, and can detect the gap value only by running a car once from top to bottom.

The invention is realized by adopting the following technical scheme: an intelligent detection method for a gap between an elevator car door vane and a landing sill comprises the following steps:

the method comprises the following steps that firstly, a plurality of magnetic stripes, a photoelectric sensor and a laser ranging sensor are installed;

a magnetic strip is arranged on the landing sill of each floor in the vertical direction close to one side of the car door vane;

a photoelectric sensor is fixed on one side of the car door vane and is triggered by the magnetic strips of the corresponding floors to send switching value signals;

a laser ranging sensor is further fixed on one side of the car door vane, and the head of the photoelectric sensor, the head of the laser ranging sensor and the front end of the car door vane are kept on the same plane; the laser ranging sensor and the photoelectric sensor are kept in a horizontal state; the laser ranging sensor is used for detecting the gap between the car door vane and each layer of landing sill; the photoelectric sensor and the laser ranging sensor are connected with the car door vane through a sucker device, and the sucker device comprises a fixing block, a plurality of suckers and a plurality of clamping plates; the fixed block is provided with an open type first groove body; the sucker is detachably fixed on one side, close to the car door vane, of the fixed block; the clamping plate is accommodated in one side, far away from the sucker, of the first groove body, and the clamping plate is connected with the first groove body through an adjusting assembly; the clamping plate can compress and fix the photoelectric sensor or the laser ranging sensor accommodated in the first groove body;

designing an alarm mode;

when the car door vane moves to the landing sill position of each floor, the photoelectric sensor is triggered by the magnetic strip of the corresponding floor to send a switching value signal;

driving the laser ranging sensor to range according to the switching value signal;

and judging whether the corresponding gap is in a preset range or not according to the gap measured by the laser ranging sensor, and if not, giving an alarm.

Furthermore, the alarm mode is realized by designing an alarm program in an instrument host, and the instrument host drives the laser ranging sensor to range according to the switching value signal; and the instrument host judges whether the corresponding gap is in the preset range or not according to the gap measured by the laser ranging sensor, and if not, the instrument host is also used for driving alarm.

Furthermore, the adjusting assembly comprises a first gear, a second gear, a third gear, a driving rod, a first threaded sleeve, a second threaded sleeve, a first threaded rod and a second threaded rod, and a third groove body is formed in one side, away from the sucker, of the fixing block; the first gear, the second gear and the third gear are accommodated in the third groove body; the second gear and the third gear are symmetrically distributed relative to the first gear, and the second gear and the third gear are respectively meshed with two sides of the first gear; one end of the driving rod penetrates into the third groove body and then is connected with the rotating center of the first gear; the first threaded sleeve and the second threaded sleeve are respectively inserted in the rotation center of the second gear and the rotation center of the third gear, and one end of the first threaded sleeve and one end of the second threaded sleeve are both connected with the inner wall of the third groove body through bearings; one end of the threaded rod and one end of the threaded rod are respectively in threaded sleeve joint with the other end of the threaded sleeve and the other end of the threaded sleeve, and the other end of the threaded rod extend into the first groove body and then are connected with the clamping plate.

Furthermore, a second groove body is formed in one side, close to the sucker, of the fixing block; and one side of the sucker, which is close to the second groove body, is provided with a butt joint block which is in splicing fit with the second groove body.

Furthermore, connecting blocks are vertically arranged at two ends of one side of the sucking disc close to the second groove body; the connecting block and the fixing block are fixed through screws.

Further, the instrument host includes:

the alarm device is used for alarming; and

and the microprocessor triggers and drives the laser ranging sensor to range according to the switching value signal, judges whether the corresponding gap is in the preset range or not, and drives the alarm device to give an alarm if the corresponding gap is not in the preset range.

Further, the alarm device is a buzzer.

Furthermore, the microprocessor is a single chip microcomputer.

Furthermore, the instrument main unit also comprises a display screen which is used for displaying floor information, unqualified gap value information and elevator landing number information.

Furthermore, the instrument host also comprises a key group used for inputting key signals to the microprocessor;

and the microprocessor drives each component to operate according to the different key signals.

The invention has the beneficial effects that:

1. the invention renovates the measurement of the clearance between the elevator car door vane and the landing door sill, effectively solves the difficulty of low detection efficiency caused by long-term use of the traditional instrument by inspectors, greatly improves the measurement efficiency of the clearance between the elevator car door vane and the landing door sill in high-rise buildings by using the instrument, and effectively ensures the safety of the inspectors.

2. According to the invention, the suction disc device is matched with the adjusting component, so that the photoelectric sensor and the laser ranging sensor can be quickly mounted and dismounted on the car door vane, and the detection efficiency is improved.

Drawings

Fig. 1 is a schematic view of measurement of an intelligent detector for a gap between an elevator car door vane and a landing door sill provided in embodiment 1 of the present invention;

FIG. 2 is a diagram of the hardware components of the intelligent detector shown in FIG. 1;

FIG. 3 is a schematic diagram of the instrument host of FIG. 1;

FIG. 4 is a schematic diagram of a human-machine interface of the instrument host of the intelligent detector shown in FIG. 1;

FIG. 5 is a partial cross-sectional view of the suction cup device of FIG. 1;

fig. 6 is a partial enlarged view of a portion a in fig. 5;

fig. 7 is a program diagram of a detection method of an intelligent detector for a gap between an elevator car door vane and a landing door sill provided in embodiment 2 of the present invention.

Description of the main symbols:

10-a magnetic strip; 20-a photosensor; 30-laser ranging sensor; 40-an instrument host; 41-a buzzer; 42-a microprocessor; 43-a display screen; 44-a key set; 441-key one; 442-key two; 443-key three; 444-key four; 50-a suction cup device; 51-fixing block; 511-tank body one; 512-groove two; 513-tank III; 52-a suction cup; 521-a connecting block; 522-butt-joint block; 53-splint; 60-an adjustment assembly; 61-gear one; 62-gear two; 63-gear three; 64-a driving rod; 65-threaded bushing one; 66-a second threaded sleeve; 67-threaded rod one; 68-threaded rod two.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1, fig. 1 is a schematic view of a measurement of an intelligent detector for a gap between an elevator car door vane and a landing door sill provided in embodiment 1 of the present invention. The intelligent detector for the gap between the elevator car door vane and the landing door sill comprises a magnetic strip 10, a photoelectric sensor 20, a laser ranging sensor 30, an instrument host 40, a sucker device 50 and an adjusting component 60.

Referring to fig. 2, fig. 2 is a hardware composition diagram of the intelligent detector shown in fig. 1. The magnetic stripe 10 is a strip with magnetism, and may be a magnet in other embodiments, and may also be in other structures as long as the triggering of the photoelectric sensor 20 is not affected, the magnetic stripe 10 is fixed on the vertical direction of the landing sill near the car door vane, and in this embodiment, the magnetic stripe 10 and the landing sill may be fixed by being adsorbed by the suction cup device 50. And the number of the magnetic strips 10 is consistent with the floor number of the floor.

The photoelectric sensor 20 is fixed on one side of the door vane. The photoelectric sensor 20 in this embodiment can be attached to the door vane by a suction device 50. In other embodiments, the photoelectric sensor 20 may be adhered to the car door vane, or may be connected in other manners as long as the whole structure of the car door vane is not damaged. When the car door vane moves to the landing sill position of each floor, the photoelectric sensor 20 can detect the magnetic strip 10 of the floor and is triggered by the magnetic strip 10 to send out a switching value signal.

The laser ranging sensor 30 is fixed on the side of the car door vane far away from the photoelectric sensor 20. In this embodiment, the laser distance measuring sensor 30 may be attached to the car door vane through a suction device 50. In other embodiments, the laser distance measuring sensor 30 may be adhered to the car door vane, or may be connected in other manners as long as the overall structure of the car door vane is not damaged.

The laser ranging sensor 30 can be driven and triggered by the instrument host 40 when the car door vane moves to the landing sill position on each floor, and the laser ranging sensor 30 can detect the gap between the car door vane and the landing sill to measure so as to obtain a measured value and send out a detection signal.

The laser distance measuring sensor 30 in this embodiment is made by the german iridium corporation, model number of optoNCDT 1700. The principle of laser triangular reflection is utilized to realize non-contact displacement measurement. A beam of laser emitted by the sensor forms a tiny measuring light spot on the surface of the measured object through the focusing lens. After being reflected by the surface of a measured object, the laser is refocused on a high-sensitivity linear photosensitive sheet through an imaging lens. After the signal is processed, the light sensing sheet can identify the tiny position change of the measuring light spot. The sensor uses high-resolution CCD and CMOS digital sensitive films. The main technical parameters are as follows: the linear range is 2-750 mm; absolute error is less than or equal to +/-0.08%; the resolution is 0.005%; the measurement frequency was 2.5 kHz.

The head of the laser ranging sensor 30 in the embodiment is flush with the front end of the car door vane; and the photoelectric sensor 20 and the laser ranging sensor 30 are kept in a horizontal state, so that the distance measured by the laser ranging sensor 30 is effectively ensured to be the clearance value between the landing sill and the car door vane.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the apparatus of fig. 1.

The main instrument unit 40 is placed on the ceiling of the car, and the main instrument unit 40 is similar to the structure of a computer case as a whole. The instrument main machine 40 and the car roof can be connected through bolts, and in other embodiments, the instrument main machine can be connected through suction by a suction cup, and other connection modes can be adopted as long as the normal operation of the instrument main machine 40 is not influenced. The main unit 40 includes a buzzer 41, a microprocessor 42, a display 43 and a key set 44.

The buzzer 41 is fixed on the machine body, and the buzzer 41 is used for giving an alarm when the measured value does not accord with the preset value. If the measured value is less than 5mm, the buzzer 41 gives an alarm immediately and stores the corresponding floors and the gap values, and the floors and the gap values corresponding to unqualified gap values are displayed on the display screen 43 one by one; if the measured value is not less than 5mm, the buzzer 41 remains silent and does not hold any information.

The microprocessor 42 is fixed on the machine body, the microprocessor 42 can drive the laser ranging sensor 30 to measure the distance according to the switching value signal, and judge whether the measured value of the gap between the landing sill and the car door vane is smaller than a preset value or within a preset range (in the embodiment, the preset value or the preset range is 5mm), if the measured value is smaller than the preset value or not within the preset range, the microprocessor 42 drives the buzzer 41 to be powered on to give an alarm. The microprocessor 42 in the implementation adopts a single chip microcomputer which has the advantages of low manufacturing cost and stable performance, and the microprocessor can also be a PLC controller in other embodiments.

Referring to fig. 4, fig. 4 is a schematic diagram of a human-machine interface of the host of the intelligent detector shown in fig. 1.

The display screen 43 is embedded on the machine body of the instrument main machine 40, and the display screen 43 is used for displaying floor information, unqualified gap value information and elevator landing number information.

The key set 44 is used for inputting key signals to the microprocessor 42, and the key set 44 includes a first key 441, a second key 442, a third key 443, and a fourth key 444, and the four keys are horizontally embedded in the main body of the instrument 40 at the bottom of the display screen 43. The number of keys in the key group 40 is four in this embodiment, and in other embodiments, the number of keys can be set to other numbers according to the requirement of the working environment.

The first button 441 in this embodiment is used to start or stop the operation of the detector. The second button 442 is used to start the test function of the tester. The button three 443 can set an increased number of elevator landing zones. Button four 444 enables setting a reduced number of elevator landing zones.

The instrument mainly adopts powerful data calculation and processing functions of a single chip microcomputer, and through software programming, once the magnetic stripe 10 is detected by the photoelectric sensor 20 when the elevator runs, the laser ranging sensor 30 immediately detects the gap between the elevator car door vane and the landing sill, so that rapid and accurate measurement is realized. The software utilizes a keil uvision2 programming environment, and programs are burnt into the single chip microcomputer through a serial port (RS 232).

Referring to fig. 5, fig. 5 is a partial cross-sectional view of the suction cup device in fig. 1. The photoelectric sensor 20 and the laser ranging sensor 30 are connected with the car door vane through a sucker device 50. The suction cup device 50 includes a fixing block 51, a suction cup 52, and a clamping plate 53.

The fixing block 51 is a rectangular block in this embodiment, and the fixing block 51 may also be a circular block in other embodiments, as long as it is adapted to the size and specification of the photoelectric sensor 20 or the laser ranging sensor 30, or may also be another block structure. The top end of the fixing block 51 is provided with an open type first groove body 511, and one side of the first groove body 511, which is close to the landing sill, is provided with an insertion hole for inserting the photoelectric sensor 20 or the laser ranging sensor 30.

One side of the fixed block 51 close to the suction cup 52 is provided with a second groove body 512. The second slot 512 in this embodiment has a slot direction perpendicular to the slot direction of the first slot 511, but the two are not the same. The cross-sectional shape of the second slot 512 may be square or triangular, as long as it is adapted to the docking block 522. The side of the fixed block 51 far away from the suction cup 52 is provided with a third groove body 513, and the third groove body 513 can be a hollow groove body which is rectangular as a whole.

The suction cup 52 is a disk body that is wholly trumpet-shaped. The suction cup 52 in this embodiment is divided into a horn-shaped suction portion and a connecting portion connected to the fixed block 51. One side (namely, the connecting part) of the suction cup 52 close to the second groove body 512 is provided with a butt-joint block 522, the cross section of the butt-joint block 522 can be in a direction or a triangle, and the butt-joint block 522 can be inserted into the second groove body 512, so that the connection between the suction cup 52 and the fixed block 51 is realized. The number of the suction cups 52 in this embodiment is plural, and can be selected as required.

The connecting blocks 521 are vertically arranged on two sides of the connecting part of the suction cup 52, and the connecting blocks 521 and the connecting part are welded and fixed in an integrated manner in the embodiment. The connecting block 521 is provided with a through hole, and a threaded hole is formed in the corresponding position of the fixing block 51 close to one side of the car door vane, so that the connecting block 521 can pass through the through hole through a screw to be connected and fixed with the threaded hole in the fixing block 51, and the sucker 52 can be detachably fixed on the fixing block 51.

The clamp plate 53 is a plate body having a rectangular shape as a whole. The clamping plate 53 may also be an arc plate having a curvature in other embodiments. The clamp plate 53 is accommodated in the first slot body 511 at a side far away from the suction cup 52, and the clamp plate is connected with the first slot body through the adjusting assembly 60. So that the photoelectric sensor 20 or the laser distance measuring sensor 30 accommodated in the first slot body 511 can be pressed and fixed. The number of the clamp plates 53 is set to one or more in the present embodiment as long as the photoelectric sensor 20 or the laser ranging sensor 30 can be pressed and fixed.

Referring to fig. 6, fig. 6 is a partially enlarged view of a portion a in fig. 5. The adjustment assembly 60 includes a first gear 61, a second gear 62, a third gear 63, a drive rod 64, a first threaded bushing 65, a second threaded bushing 66, a first threaded rod 67, and a second threaded rod 68.

The first gear 61, the second gear 62 and the third gear 63 are all ordinary full-tooth gears. In this embodiment, the first gear 61, the second gear 62 and the third gear 63 are all accommodated in the third groove 513, the second gear 62 and the third gear 63 are symmetrically distributed around the first gear 61, and the second gear 62 and the third gear 63 are respectively meshed with two sides of the first gear 61. Therefore, the gear wheel one 61 rotates in one direction, and the gear wheel two 62 and the gear wheel three 63 on the two sides can synchronously rotate in the same direction.

In this embodiment, the driving rod 64 is inserted through the rotation center of the first gear 61, the driving rod 64 is a rod body in a long shaft shape as a whole, one end of the driving rod is inserted and connected with the first gear 61, and the other end of the driving rod penetrates through the third slot body 513 and extends to the outside of the fixing block 51. A screw head which is convenient for people to screw is arranged on the end part of the driven rod 64 which is arranged outside the fixed block 51. And the penetrating connection part of the active rod 64 and the third groove body 513 is rotatably connected through a bearing.

In this embodiment, the first threaded sleeve 65 and the second threaded sleeve 66 are both tubular bodies that are integrally cylindrical and have an opening at one end, and internal threads are distributed on the insides of the first threaded sleeve 65 and the second threaded sleeve 66. The middle parts of the outer sides of the first threaded sleeve 65 and the second threaded sleeve 66 are respectively connected with the middle parts of the second gear 62 and the third gear 63 in a penetrating manner, and in other embodiments, the first threaded sleeve 65 and the second gear 62 and the second threaded sleeve 66 and the third gear 63 can be connected through keys. Therefore, the first threaded sleeve 65 and the second threaded sleeve 66 rotate synchronously with the second gear 62 and the third gear 63. And one end of the first threaded sleeve 65 and one end of the second threaded sleeve 66 are rotatably connected with the inner wall of the third groove body 513 through bearings.

In this embodiment, the first and second threaded

rods

67 and 68 are elongated rods having external threads distributed on the outer sides thereof. One end of the first threaded rod 67 and one end of the second threaded rod 68 are respectively in threaded sleeve connection with the other end of the first threaded sleeve 65 and the other end of the second threaded sleeve 66 in a sleeved mode. The external threads of the first threaded rod 67 and the external threads of the second threaded rod 68 are in threaded fit with the internal threads of the first threaded sleeve 65 and the internal threads of the second threaded sleeve 66 respectively. The other end of the first threaded rod 67 and the other end of the second threaded rod 68 extend into the first slot body 511 and then are connected with the clamping plate 53. In this embodiment, the first and second threaded

rods

67 and 68 are rotatably connected to the third groove 513 through bearings, and the first and second threaded

rods

67 and 68 are connected to the clamp plate 53 through screws.

Thus, the adjustment assembly 60 works in the following manner: when the sensor inserted into the first slot body 511 needs to be fixed, the driving rod 64 is only required to be screwed to rotate, the driving rod 64 drives the first gear 61 to rotate, the second gear 62 and the third gear 63 are driven by the gear 61 to synchronously rotate in the same direction, the first gear 62 and the third gear 63 respectively drive the first threaded sleeve 65 and the second threaded sleeve 66 to rotate in the third slot body 513, so that the first threaded rod 67 contained in the first threaded sleeve 65 axially extends out and the second threaded rod 68 in the second threaded sleeve 66 axially extends out, and the clamping plate 53 is synchronously pushed to gradually press close to the sensor until the sensor is clamped and fixed, so that the sensor is convenient and practical.

Example 2

The difference between the embodiment and the embodiment 1 is that the embodiment provides a detection method for an intelligent detector for a gap between an elevator car door vane and a landing door sill. The detection method is applied to the intelligent detector for the gap between the elevator car door vane and the landing door sill. Referring to fig. 7, fig. 7 is a program diagram of a detection method of the intelligent detector for detecting the gap between the elevator car door vane and the landing door sill in embodiment 2 of the present invention.

The detection method comprises the following steps:

(1) when the car door vane moves to the landing sill position of each floor, the photoelectric sensor 20 is triggered by the magnetic strip 10 of the corresponding floor to send out a switching value signal;

(2) driving the laser ranging sensor 30 to measure the distance according to the switching value signal;

(3) and judging whether the corresponding gap is in a preset range or not according to the gap measured by the laser ranging sensor 30, and driving to alarm if the corresponding gap is not in the preset range.

Example 3

The difference between the present embodiment and embodiment 1 is that the present embodiment provides an operation method of an intelligent detector for a gap between an elevator car door vane and a landing door sill. The operation method is applied to the intelligent detector for the gap between the elevator car door vane and the landing door sill. The operation method comprises the following steps:

(1) the inspector enters the car top and moves the elevator to the position where the car door vane is opposite to the landing door sill. The inspector respectively attaches the photoelectric sensor 20 and the laser ranging sensor 30 to both sides of the door vane through the suction cup device 50, and keeps the front end of the door vane, the head of the photoelectric sensor 20 and the head of the laser ranging sensor 30 on the same plane. Then, the position of the magnetic strips 10 adsorbed on the landing sill in the vertical direction is determined according to the position of the photoelectric sensor 20, the elevator runs from top to bottom, and the magnetic strips 10 are adsorbed on the landing sill in the vertical direction one by one. The inspector places the main instrument unit 40 of the inspection apparatus on the ceiling of the car through bolts.

(2) The inspector presses a first button 441 to start the detector, so that the detector is started to operate, and at the moment, software is initialized, and whether the detector is started to operate or not is continuously detected.

(3) The inspector presses button two 442 to start the inspection apparatus, and the photoelectric sensor 20 automatically enters the working state. When the car door vane moves to the landing sill position of each floor, the photoelectric sensor 20 can detect the magnetic strip 10 of the floor and is triggered by the magnetic strip 10 to send out a switching value signal.

(4) The microprocessor 42 drives the laser ranging sensor 30 to measure the distance according to the switching value signal, and the laser ranging sensor 30 detects the gap between the corresponding floor car door vane and the landing door sill and transmits a detection signal to the microprocessor 42.

(5) And the microprocessor 42 judges whether the gap value between the landing sill and the car door vane is smaller than a preset value according to the gap value of the detection signal, and when the gap measured value is smaller than the preset value, the microprocessor 42 drives the buzzer 41 to be powered on to give an alarm. The alarm time lasts two seconds, and the corresponding floor number is stored. While its clearance value and the corresponding floor are displayed on the display screen 43. The unqualified clearance value and the floor number corresponding to the unqualified clearance value are displayed on the display screen 43, and the inspection conclusion of the inspection item is unqualified. When the microprocessor 42 judges that the measured value is greater than the preset value according to the detection signal, the detection process returns to the step of detecting the magnetic stripe 10 by the photoelectric sensor 20 again to continue detecting the next floor.

(6) Finally, the inspector can directly judge whether the inspection item meets the standard according to the detection result.

The operation steps of this embodiment can be summarized as follows: assuming that the number of the landing doors is n, when the elevator runs from top to bottom, and the photoelectric sensor 20 detects the first magnetic stripe 10, the microprocessor 42 defaults to be the nth landing door, and when the elevator continues to run downwards, the microprocessor 42 respectively considers the nth landing door, the nth-2 landing door and the nth-3 landing door … …, once the gap value corresponding to a certain landing door is detected to be unqualified, the display screen 43 always displays the gap value and the corresponding floor, and meanwhile, the microprocessor 42 drives the buzzer 41 to be powered on, and the buzzer 41 gives an alarm. If the gap value corresponding to a certain floor door is detected to be qualified, the detection flow returns to the step of detecting the magnetic stripe 10 by the photoelectric sensor 20 again to continue to detect the next floor.

To sum up, the instrument utilizes the sensor and the single chip microcomputer technology to reform and effectively solve the difficult point that inspection efficiency is low that inspection personnel used traditional instrument for a long time to the measurement in elevator sedan-chair door sword and landing door sill clearance, uses this instrument to improve the measurement efficiency to elevator sedan-chair door sword and landing door sill clearance in the high-rise building greatly, still effectual guarantee inspection personnel's safety simultaneously. According to the invention, the suction disc device is matched with the adjusting component, so that the photoelectric sensor and the laser ranging sensor can be quickly mounted and dismounted on the car door vane, and the detection efficiency is improved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent detection method for a gap between an elevator car door vane and a landing sill is characterized by comprising the following steps:

designing an alarm mode;

2. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as claimed in claim 1, wherein the alarm mode is realized by designing an alarm program in an instrument host, and the instrument host drives the laser ranging sensor to measure the distance according to the switching value signal; and the instrument host judges whether the corresponding gap is in the preset range or not according to the gap measured by the laser ranging sensor, and if not, the instrument host is also used for driving alarm.

3. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as claimed in claim 1, wherein the adjusting component comprises a first gear, a second gear, a third gear, a driving rod, a first threaded sleeve, a second threaded sleeve, a first threaded rod and a second threaded rod, and a third groove body is formed in one side of the fixing block, which is far away from the suction cup; the first gear, the second gear and the third gear are accommodated in the third groove body; the second gear and the third gear are symmetrically distributed relative to the first gear, and the second gear and the third gear are respectively meshed with two sides of the first gear; one end of the driving rod penetrates into the third groove body and then is connected with the rotating center of the first gear; the first threaded sleeve and the second threaded sleeve are respectively inserted in the rotation center of the second gear and the rotation center of the third gear, and one end of the first threaded sleeve and one end of the second threaded sleeve are both connected with the inner wall of the third groove body through bearings; one end of the threaded rod and one end of the threaded rod are respectively in threaded sleeve joint with the other end of the threaded sleeve and the other end of the threaded sleeve, and the other end of the threaded rod extend into the first groove body and then are connected with the clamping plate.

4. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as claimed in claim 1, wherein a second groove body is formed on one side of the fixing block close to the suction disc; and one side of the sucker, which is close to the second groove body, is provided with a butt joint block which is in splicing fit with the second groove body.

5. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as claimed in claim 1, wherein the two ends of the suction cup close to the two sides of the groove body are both vertically provided with a connecting block; the connecting block and the fixing block are fixed through screws.

6. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as claimed in claim 2, wherein the instrument host comprises:

the alarm device is used for alarming; and

7. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as recited in claim 6, wherein said alarm device is a buzzer.

8. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as recited in claim 6, wherein said microprocessor is a single chip microcomputer.

9. The intelligent detection method for the gap between the elevator car door vane and the landing sill of claim 6, wherein the instrument host further comprises a display screen for displaying floor information, unqualified gap value information and elevator landing number information.

10. The intelligent detection method for the gap between the elevator car door vane and the landing door sill as recited in claim 6, wherein said instrument host further comprises a key group for inputting key signals to said microprocessor;

and the microprocessor drives each component to operate according to different key signals.