CN103193125A - Elevator hydraulic buffer resetting performance dynamic measuring method and tester adopted by method - Google Patents
Elevator hydraulic buffer resetting performance dynamic measuring method and tester adopted by method Download PDFInfo
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- CN103193125A CN103193125A CN2013101036792A CN201310103679A CN103193125A CN 103193125 A CN103193125 A CN 103193125A CN 2013101036792 A CN2013101036792 A CN 2013101036792A CN 201310103679 A CN201310103679 A CN 201310103679A CN 103193125 A CN103193125 A CN 103193125A
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Abstract
The invention provides an elevator hydraulic buffer resetting performance dynamic measuring method. The measuring method comprises the following steps of first, measuring an initial distance between a blocking plate and the ground of an elevator bottom pit; second, measuring a distance between the blocking plate and the ground of the elevator bottom pit; third, judging whether an elevator car goes down or not and whether the elevator car is contacted with an elevator buffer; fourth, measuring a distance between the elevator car and the elevator bottom pit; fifth, judging whether the elevator car goes up or not; sixth, judging whether the elevator buffer finishes resetting; and seventh, processing data to obtain resetting time of the elevator buffer and analyzing the resetting performance of the elevator buffer. The measuring method can quickly and accurately measure the resetting time of the buffer, ensures the buffer to meet the safety requirement, and accordingly improves the measuring accuracy and the work efficiency of inspectors. The invention further provides a tester adopted by the method. The tester is simple in installation and meets the requirements of newly adopted elevator inspection procedures.
Description
Technical field
The present invention relates to a kind of elevator detection technique field, more particularly, relate to a kind of dynamic method of measurement of elevator water bumper reseting performance and tester thereof.
Background technology
The detection of buffer of elevator reseting performance is the detection of the whole dynamic process that resets after compressed to energy disperser, and wherein, the detection of buffer of elevator reset time is essential items for inspection in elevator inspection rule and elevator manufacturing and installation code standard; And in the elevator Supervisory Testing Process, the detection of buffer of elevator reset time is to judge one of foundation of elevator safety situation, and the accuracy rate of measuring the elevator reset time can directly influence elevator safety whether judgement.
Carrying out the buffer of elevator reset time when detecting, consider inspector's personal safety, the inspector must be in the Room outdoors or machine room carry out the monitoring of car (counterweight) compression buffer, the reseting procedure to energy disperser carries out timing then.And the mode that existing measurement water bumper resets is still based on the manual mode of operation, only there is the affirmation of subjectivity in the dynamic characteristics of " full compression " and " car is mentioned moment " that requires for rules, can not measure related data fast, reliably, exactly, thereby cause variety of issues such as energy disperser reset time measured error is big, survey precision is low, detection efficiency is low.This detects and exists measurement difficulty problem big, that survey precision is low not only can not in time reflect lift facility security situation information, nor can effectively guarantee the safe operation of lift facility.
2010 " elevator supervision and inspection and periodical survey rule--traction and forcibly driving elevator " (TSG T7001-2009) that come into effect, in corresponding rule, the detection requirement new to the hydraulic buffer reset time proposed, compare with old inspection procedure, the main difference point is that the energy disperser reset time definition that needs are detected separates up to energy disperser with energy disperser from original car and resets fully, be revised as from mentioning car moment, reset fully up to energy disperser.Though the domestic tester of having developed for detection of the buffer of elevator reset time, but the energy disperser compressed image that these testers are described, be from car contact energy disperser, fail real to confirm to mention the car time point of moment, so existing tester and be not suitable for the elevator inspection rule of new enforcement.Simultaneously, the tester of former exploitation fails to identify automatically buffer of elevator because the jam fault remains on the situation of most compressed state, causes result of a measurement to have error.And the general buffer of elevator reset time tester of developing substantially all is aimed at test event itself at present, that is to say that the data of surveying are reset time, does not reflect the whole dynamic process that buffer of elevator resets comprehensively.And present stage does not have a kind of tester can the whole action of buffer of elevator and reseting procedure be monitored temporarily yet, and buffer generating action jam or the overtime reason that resets is provided the data of analysis.
Summary of the invention
The objective of the invention is to overcome shortcoming of the prior art with not enough, provide a kind of elevator water bumper reseting performance dynamic method of measurement, to improve the survey precision of elevator water bumper reset time.The present invention also provides a kind of and adopts this method of measurement, installation is simple and easy, survey precision is high, easy to carry and adapt to the elevator water bumper reseting performance dynamic test set of the new elevator inspection rule needs of implementing, this tester can also be monitored the dynamic process that buffer of elevator resets when improving survey precision, can guarantee the validity measured, the failure analysis for energy disperser provides foundation simultaneously.
In order to achieve the above object, the present invention is achieved by following technical proposals: the dynamic method of measurement of a kind of elevator water bumper reseting performance is characterized in that: may further comprise the steps:
The first step is measured the initial distance H between baffle plate and the elevator pit ground
0, the capping time T
0
In second step, measure the distance H between baffle plate and the elevator pit ground
1n, and the data of measuring are sent to upper computer control module by the lower computer control module; Wherein, n is natural number;
In the 3rd step, whether judge: the distance H between (1) baffle plate and the elevator pit ground to lift car by situation descending and that contact with buffer of elevator according to the data of measuring for upper computer control module
1n=H
0, then returned for second step; (2) distance H between baffle plate and the elevator pit ground
1n＜H
0, then lift car is descending and contact with buffer of elevator, carries out for the 4th step; Wherein, n is natural number;
The 4th step, measure distance between lift car and the elevator pit, continue simultaneously distance between baffle plate and the elevator pit ground is measured;
In the 5th step, upper computer control module receives the data of measuring distance between baffle plate and the elevator pit ground, describes the change curve of distance between baffle plate and the elevator pit ground; Upper computer control module receives the data of distance between measurement lift car and the elevator pit and whether up mentioning judged: distance L between (1) lift car and the elevator pit to lift car
N+1≤ L
n, then carried out for the 4th step; (2) distance L between lift car and the elevator pit
N+1＞L
n, then pick up counting, and zero-time reference be set at the initial point of buffer of elevator reset time; Wherein, n is natural number;
In the 6th step, whether upper computer control module is finished to reset to buffer of elevator according to the data of distance between measurement baffle plate and the elevator pit ground is judged: distance H between (1) baffle plate and the elevator pit ground
2n=H
0, then buffer of elevator has been finished and has been resetted, and then stops timing, and timing end point is set at the end point of buffer of elevator reset time, and carries out for the 7th step; (2) distance H between baffle plate and the elevator pit ground
2n＜H
0, then buffer of elevator is not also finished and is resetted, then and to timing time T
nWhether overtimely judge: (I) timing time T
n＜T
0, then timing time does not have overtimely, continues timing, and proceeds for the 6th step; (II) timing time T
n〉=T
0, then timing time is overtime, then stops timing, and the report time-out error also entered for the 7th step; Wherein, n is natural number;
The 7th step, the data of distance between distance and lift car and the elevator pit between upper computer control module processing measurement baffle plate and the elevator pit ground, describe the change curve of distance between the change curve of distance between baffle plate and the elevator pit ground and lift car and the elevator pit, and draw the reset time of energy disperser, analyze the energy disperser reseting performance.
In above-mentioned method of measurement, the reset time after buffer of elevator is compressed is to mention from lift car is up, and the distance between baffle plate and elevator pit ground resets to the distance before compressed.This metering system has solved when lift car mentions, and buffer of elevator causes timing to postpone because producing when the jam fault remains on compressed maximum rating, thereby causes the energy disperser reset time to measure the problem inaccurate, that measured error is big and survey precision is low.This method of measurement meets elevator and newly examines in the rule detection requirement to the hydraulic buffer reset time in the work efficiency that improves survey precision and inspector.
Described lower computer control module and upper computer control module are carried out transmission and the reception of signal and data in the mode of radio communication.
In the 5th step and the 7th step, the change curve of distance refers to buffer of elevator by in lift car compression and the buffer of elevator reseting procedure between described baffle plate and the elevator pit ground, the distance between baffle plate and the elevator pit ground and the real-time quadratic curve of time.
In the 7th step, the change curve of distance refers in the descending and up process of lift car between described lift car and the elevator pit, the real-time quadratic curve of the distance between lift car and the elevator pit and time.
Method of measurement of the present invention is to confirm initial point and the end point of reset time jointly by the delta data of distance between the variable in distance data between baffle plate and the elevator pit ground and lift car and the elevator pit, the quantity of calculating sampled data between initial point and the end point by upper computer control module multiply by the interval of lower computer data sampling time, draws the reset time of buffer of elevator.
A kind of tester that adopts above-mentioned elevator water bumper reseting performance dynamic measurement method is characterized in that: comprising:
Be fixed on the baffle plate of buffer of elevator with horizontal direction;
Be arranged on the range finder module one of described baffle plate below, to be used for measuring the variation of distance between baffle plate and the elevator pit ground;
Be used for measuring the range finder module two of variable in distance between lift car and the elevator pit;
Be used for preserving data in real time, receive the feedback signal of range finder module one and range finder module two and controlling range finder module one and the lower computer control module of range finder module two;
Be used for the real-time upper computer control module that receives the feedback information of lower computer control module and control the lower computer control module;
And the display module that is connected with upper computer control module;
Described range finder module one is connected with the mutual signal of lower computer control module respectively with range finder module two; Described lower computer control module is connected with the mutual signal of upper computer control module.
In the tester use, the inspector can directly learn the reset time of buffer of elevator at display module, and can analyze the every performance of energy disperser in compressed or reseting procedure by the change curve of distance between baffle plate and the elevator pit ground, can judge simultaneously the problem of oil level and the oil quality of energy disperser hydraulic oil, judge whether energy disperser exists phenomenons such as corrosion, jam fault.
Described lower computer control module is connected with the mutual signal of upper computer control module and refers to that lower computer control module and upper computer control module carry out transmission and the reception of signal and data by wireless data transfer module.The present invention adopts the wireless data transfer module with highly integrated half duplex operation micropower, and it embeds high-speed microprocessor and high-performance radio-frequency chip.This module adopts the error correction and detection coding that interweaves that circulates efficiently, and disturbance rejection and sensitivity all improve greatly, and maximum can be entangled the continuous burst error of 24bits.
Described range finder module one is the laser ranging module, and it is fixed on the elevator pit ground; Described range finder module two is ultrasonic distance measuring module, and it is arranged on the below of lift car and is fixed on the elevator pit ground.Wherein, the principle of ultrasonic ranging is that to utilize the aerial propagation speed of super sonic be known, measures sound wave and run into the time that obstacle reflects after emission, calculates launch point to the actual distance of obstacle according to the time difference that transmits and receives.
Described baffle plate is fixed on the re-packing of buffer of elevator electric switch with horizontal direction.
Described upper computer control module adopts linux operating system; Described display module is exercisable touch-screen.In test process, the testing staff can operate in real time accordingly by touch-screen.
Compared with prior art, the present invention has following advantage and beneficial effect:
1, the dynamic method of measurement of elevator water bumper reseting performance of the present invention can be measured the reset time of energy disperser fast, accurately, safely, objectively, guarantee that energy disperser meets safety requirements, avoided manual detection to have the problem that difficulty is big, survey precision is low of measuring, thereby improved survey precision and improve inspector's work efficiency; And the needs that adapt to the new elevator inspection procedure of implementing.
2, the present invention realizes that the tester of elevator water bumper reseting performance dynamic measurement method also can provide the image of whole compression and reseting procedure, can help the oil level of inspector's intuitive judgment energy disperser hydraulic oil and the problem of oil quality, judge whether energy disperser exists phenomenons such as corrosion, jam fault.
3, tester of the present invention is tested by the dynamic process that buffer of elevator is resetted, and the data of resultant measurement and information can in time reflect the security situation of lift facility, and can effectively guarantee the safe operation of lift facility.
4, tester of the present invention is installed simple and easy, simple to operate and easy to carry.
Description of drawings
Fig. 1 is the modular construction figure of elevator water bumper reseting performance dynamic test set of the present invention;
Fig. 2 is the scheme of installation of elevator water bumper reseting performance dynamic test set of the present invention;
Fig. 3 is the diagram of circuit of the dynamic method of measurement of elevator water bumper reseting performance of the present invention;
Wherein, 1 is that baffle plate, 2 is that laser ranging module, 3 is that buffer of elevator, 4 is that ultrasonic distance measuring module, 5 is that lift car, 6 is the lower computer control module.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and the specific embodiment.
Embodiment
Adopting the laser ranging module in the present embodiment is that model is the laser rangefinder of LRFS (HYKOL)-0040-1/2, and ultrasonic distance measuring module is that model is the ultrasonic range finder of KS103, and model is that the wireless data transfer module of APC220-43 describes following.
The modular construction figure of elevator water bumper reseting performance dynamic test set of the present invention as shown in Figure 1, this tester comprises a baffle plate, be used for measuring the laser ranging module of variable in distance between baffle plate and the elevator pit ground, be used for measuring the ultrasonic distance measuring module of variable in distance between lift car and the elevator pit, be used for preserving in real time data, receive the feedback signal of laser ranging module and ultrasonic distance measuring module and control the lower computer control module of laser ranging module and ultrasonic distance measuring module, be used for the real-time upper computer control module that receives the feedback information of lower computer control module and control the lower computer control module, and the display module that is connected with upper computer control module.Wherein, upper computer control module adopts linux operating system, and display module adopts exercisable LCD touch-screen, and being convenient to the testing staff can operate in real time accordingly.As shown in Figure 1, the laser ranging module is connected with the mutual signal of lower computer control module respectively with ultrasonic distance measuring module, and lower computer control module and upper computer control module are then carried out transmission and the reception of signal and data by wireless data transfer module.
As shown in Figure 2, the baffle plate 1 of tester of the present invention is fixed on the re-packing of buffer of elevator 3 electric switches with horizontal direction, and laser ranging module 2 is fixed on the elevator pit ground and is arranged on the below of baffle plate 1.Ultrasonic distance measuring module 4 is arranged on the below of lift car 5 and is fixed on the elevator pit ground.Lower computer control module 6 interconnects with laser ranging module 2 and ultrasonic distance measuring module 4 and is installed in the elevator pit, and upper computer control module and display module then are arranged on outside the elevator.
The diagram of circuit of the dynamic method of measurement of elevator water bumper reseting performance of the present invention may further comprise the steps as shown in Figure 3:
The first step is measured the initial distance H between baffle plate and the elevator pit ground
0, the capping time T
0
In second step, measure the distance H between baffle plate and the elevator pit ground
1n, and the data of measuring are sent to upper computer control module by the lower computer control module; Wherein, n is natural number;
In the 3rd step, whether judge: the distance H between (1) baffle plate and the elevator pit ground to lift car by situation descending and that contact with buffer of elevator according to the data of measuring for upper computer control module
1n=H
0, then returned for second step; (2) distance H between baffle plate and the elevator pit ground
1n＜H
0, then lift car is descending and contact with buffer of elevator, carries out for the 4th step; Wherein, n is natural number;
The 4th step, measure distance between lift car and the elevator pit, continue simultaneously distance between baffle plate and the elevator pit ground is measured;
In the 5th step, upper computer control module receives the data of measuring distance between baffle plate and the elevator pit ground, describes the change curve of distance between baffle plate and the elevator pit ground; Upper computer control module receives the data of distance between measurement lift car and the elevator pit and whether up mentioning judged: distance L between (1) lift car and the elevator pit to lift car
N+1≤ L
n, then carried out for the 4th step; (2) distance L between lift car and the elevator pit
N+1＞L
n, then pick up counting, and zero-time reference be set at the initial point of buffer of elevator reset time; Wherein, n is natural number;
In the 6th step, whether upper computer control module is finished to reset to buffer of elevator according to the data of distance between measurement baffle plate and the elevator pit ground is judged: distance H between (1) baffle plate and the elevator pit ground
2n=H
0, then buffer of elevator has been finished and has been resetted, and then stops timing, and timing end point is set at the end point of buffer of elevator reset time, and carries out for the 7th step; (2) distance H between baffle plate and the elevator pit ground
2n＜H
0, then buffer of elevator is not also finished and is resetted, then and to timing time T
nWhether overtimely judge: (I) timing time T
n＜T
0, then timing time does not have overtimely, continues timing, and proceeds for the 6th step; (II) timing time T
n〉=T
0, then timing time is overtime, then stops timing, and the report time-out error also entered for the 7th step; Wherein, n is natural number;
The 7th step, the data of distance between distance and lift car and the elevator pit between upper computer control module processing measurement baffle plate and the elevator pit ground, describe the change curve of distance between the change curve of distance between baffle plate and the elevator pit ground and lift car and the elevator pit, and draw the reset time of energy disperser, analyze the energy disperser reseting performance.
Wherein, lower computer control module and upper computer control module are carried out transmission and the reception of signal and data in the mode of radio communication.
In above-mentioned the 5th step and the 7th step, the change curve of distance refers to buffer of elevator by in lift car compression and the buffer of elevator reseting procedure between described baffle plate and the elevator pit ground, the distance between baffle plate and the elevator pit ground and the real-time quadratic curve of time.
In above-mentioned the 7th step, the change curve of distance refers in the descending and up process of lift car between lift car and the elevator pit, the real-time quadratic curve of the distance between lift car and the elevator pit and time.
Method of measurement of the present invention is to confirm initial point and the end point of reset time jointly by the delta data of distance between the variable in distance data between baffle plate and the elevator pit ground and lift car and the elevator pit, the quantity of calculating sampled data between initial point and the end point by upper computer control module multiply by the interval of lower computer data sampling time, draws the reset time of buffer of elevator.
The inspector can directly obtain the reset time of energy disperser at display module, improve its work efficiency, and can analyze the every performance of energy disperser in compressed or reseting procedure by the change curve of distance between baffle plate and the elevator pit ground, and can judge the problem of oil level and the oil quality of energy disperser hydraulic oil, judge whether energy disperser exists phenomenons such as corrosion, jam fault.
Above-described embodiment is preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. dynamic method of measurement of elevator water bumper reseting performance is characterized in that: may further comprise the steps:
The first step is measured the initial distance H between baffle plate and the elevator pit ground
0, the capping time T
0
In second step, measure the distance H between baffle plate and the elevator pit ground
1n, and the data of measuring are sent to upper computer control module by the lower computer control module; Wherein, n is natural number;
In the 3rd step, whether judge: the distance H between (1) baffle plate and the elevator pit ground to lift car by situation descending and that contact with buffer of elevator according to the data of measuring for upper computer control module
1n=H
0, then returned for second step; (2) distance H between baffle plate and the elevator pit ground
1n＜H
0, then lift car is descending and contact with buffer of elevator, carries out for the 4th step; Wherein, n is natural number;
The 4th step, measure distance between lift car and the elevator pit, continue simultaneously distance between baffle plate and the elevator pit ground is measured;
In the 5th step, upper computer control module receives the data of measuring distance between baffle plate and the elevator pit ground, describes the change curve of distance between baffle plate and the elevator pit ground; Upper computer control module receives the data of distance between measurement lift car and the elevator pit and whether up mentioning judged: distance L between (1) lift car and the elevator pit to lift car
N+1≤ L
n, then carried out for the 4th step; (2) distance L between lift car and the elevator pit
N+1＞L
n, then pick up counting, and zero-time reference be set at the initial point of buffer of elevator reset time; Wherein, n is natural number;
In the 6th step, whether upper computer control module is finished to reset to buffer of elevator according to the data of distance between measurement baffle plate and the elevator pit ground is judged: distance H between (1) baffle plate and the elevator pit ground
2n=H
0, then buffer of elevator has been finished and has been resetted, and then stops timing, and timing end point is set at the end point of buffer of elevator reset time, and carries out for the 7th step; (2) distance H between baffle plate and the elevator pit ground
2n＜H
0, then buffer of elevator is not also finished and is resetted, and then and to whether timing time Tn is overtime judges: (I) timing time T
n＜T
0, then timing time does not have overtimely, continues timing, and proceeds for the 6th step; (II) timing time T
n〉=T
0, then timing time is overtime, then stops timing, and the report time-out error also entered for the 7th step; Wherein, n is natural number;
The 7th step, the data of distance between distance and lift car and the elevator pit between upper computer control module processing measurement baffle plate and the elevator pit ground, describe the change curve of distance between the change curve of distance between baffle plate and the elevator pit ground and lift car and the elevator pit, and draw the reset time of energy disperser, analyze the energy disperser reseting performance.
2. the dynamic method of measurement of elevator water bumper reseting performance according to claim 1, it is characterized in that: described lower computer control module and upper computer control module are carried out transmission and the reception of signal and data in the mode of radio communication.
3. the dynamic method of measurement of elevator water bumper reseting performance according to claim 1, it is characterized in that: in the 5th step and the 7th step, the change curve of distance refers to buffer of elevator by in lift car compression and the buffer of elevator reseting procedure between described baffle plate and the elevator pit ground, the distance between baffle plate and the elevator pit ground and the real-time quadratic curve of time.
4. the dynamic method of measurement of elevator water bumper reseting performance according to claim 1, it is characterized in that: in the 7th step, the change curve of distance refers in the descending and up process of lift car between described lift car and the elevator pit, the real-time quadratic curve of the distance between lift car and the elevator pit and time.
5. tester that adopts each elevator water bumper reseting performance dynamic measurement method in the claim 1 to 4 is characterized in that: comprising:
Be fixed on the baffle plate of buffer of elevator with horizontal direction;
Be arranged on the range finder module one of described baffle plate below, to be used for measuring the variation of distance between baffle plate and the elevator pit ground;
Be used for measuring the range finder module two of variable in distance between lift car and the elevator pit;
Be used for preserving data in real time, receive the feedback signal of range finder module one and range finder module two and controlling range finder module one and the lower computer control module of range finder module two;
Be used for the real-time upper computer control module that receives the feedback information of lower computer control module and control the lower computer control module;
And the display module that is connected with upper computer control module;
Described range finder module one is connected with the mutual signal of lower computer control module respectively with range finder module two; Described lower computer control module is connected with the mutual signal of upper computer control module.
6. elevator water bumper reseting performance dynamic test set according to claim 5 is characterized in that: described lower computer control module is connected with the mutual signal of upper computer control module and refers to that lower computer control module and upper computer control module carry out transmission and the reception of signal and data by wireless data transfer module.
7. elevator water bumper reseting performance dynamic test set according to claim 5 is characterized in that: described range finder module one is the laser ranging module, and it is fixed on the elevator pit ground; Described range finder module two is ultrasonic distance measuring module, and it is arranged on the below of lift car and is fixed on the elevator pit ground.
8. elevator water bumper reseting performance dynamic test set according to claim 5, it is characterized in that: described baffle plate is fixed on the re-packing of buffer of elevator electric switch with horizontal direction.
9. elevator water bumper reseting performance dynamic test set according to claim 5 is characterized in that: described upper computer control module employing linux operating system; Described display module is exercisable touch-screen.
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| CN103818801A (en) * | 2014-01-16 | 2014-05-28 | 华东交通大学 | New method for testing recovery time of elevator buffer |
| CN106348115A (en) * | 2016-10-09 | 2017-01-25 | 广东省特种设备检测研究院珠海检测院 | Device and method for compression and returning performance detection of elevator hydraulic buffer |
| CN107200250A (en) * | 2017-07-27 | 2017-09-26 | 河南省特种设备安全检测研究院 | Buffer of elevator resetting time detection means |
| CN110092252A (en) * | 2019-04-19 | 2019-08-06 | 辽宁工程技术大学 | A kind of hydraulic type buffer of elevator performance synthesis detection system |
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| CN110702395A (en) * | 2019-10-22 | 2020-01-17 | 浙江西沃电梯有限公司 | Elevator buffer performance detection device |
| CN112712517A (en) * | 2021-01-11 | 2021-04-27 | 上海市特种设备监督检验技术研究院 | Hydraulic buffer detection system and detection method based on intelligent image identification |
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| CN103601062B (en) * | 2013-11-20 | 2015-09-09 | 徐州矿源电气科技有限公司 | Friction type winder Fisrt fault method of inspection |
| CN103818801A (en) * | 2014-01-16 | 2014-05-28 | 华东交通大学 | New method for testing recovery time of elevator buffer |
| CN103818801B (en) * | 2014-01-16 | 2016-09-28 | 华东交通大学 | A kind of new method of buffer of elevator test recovery time |
| CN106348115B (en) * | 2016-10-09 | 2019-06-25 | 广东省特种设备检测研究院珠海检测院 | A kind of compression of Elevator hydraulic buffer and reseting performance detection device and method |
| CN106348115A (en) * | 2016-10-09 | 2017-01-25 | 广东省特种设备检测研究院珠海检测院 | Device and method for compression and returning performance detection of elevator hydraulic buffer |
| CN107200250A (en) * | 2017-07-27 | 2017-09-26 | 河南省特种设备安全检测研究院 | Buffer of elevator resetting time detection means |
| CN110092252A (en) * | 2019-04-19 | 2019-08-06 | 辽宁工程技术大学 | A kind of hydraulic type buffer of elevator performance synthesis detection system |
| CN110143503A (en) * | 2019-05-20 | 2019-08-20 | 武汉轻工大学 | Elevator safety component test facility and system |
| CN110702395A (en) * | 2019-10-22 | 2020-01-17 | 浙江西沃电梯有限公司 | Elevator buffer performance detection device |
| CN110702395B (en) * | 2019-10-22 | 2021-05-14 | 浙江西沃电梯有限公司 | Elevator buffer performance detection device |
| CN112712517A (en) * | 2021-01-11 | 2021-04-27 | 上海市特种设备监督检验技术研究院 | Hydraulic buffer detection system and detection method based on intelligent image identification |
| CN113651203A (en) * | 2021-08-24 | 2021-11-16 | 宣城市特种设备监督检验中心 | Elevator headspace detector based on Internet of things |
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