CN110745661A - Device for testing accidental moving distance of elevator car - Google Patents
Device for testing accidental moving distance of elevator car Download PDFInfo
- Publication number
- CN110745661A CN110745661A CN201911035386.9A CN201911035386A CN110745661A CN 110745661 A CN110745661 A CN 110745661A CN 201911035386 A CN201911035386 A CN 201911035386A CN 110745661 A CN110745661 A CN 110745661A
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- elevator car
- test
- testing
- elevator
- interface
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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
- B66B5/0037—Performance analysers
-
- 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
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
Abstract
The invention discloses an accidental movement distance testing device for an elevator car, which comprises a testing starting switch, wherein the testing starting switch is connected to a safety loop of an elevator control system in series, so that the safety loop can be cut off by operating the testing starting switch to brake the elevator car and start the accidental movement distance testing of the elevator car. The device for testing the accidental moving distance of the elevator car has the advantages of compact structure, convenience in carrying, low cost and simplicity and convenience in operation.
Description
Technical Field
The invention relates to a device for testing the accidental moving distance of an elevator car.
Background
The 8.3 article of the Chinese regulation elevator supervision and inspection and periodic inspection rule-traction and forced drive elevator (TSGT 7001-2009, No. 2 modification list) stipulates the inspection content and requirements of the protection device for the accidental movement of the car. The elevator is stopped only by using the stopping component, and the moving distance of the elevator car is in a range given by the type test certificate.
On-site verification of the stopping distance corresponding to the prescribed test speed is performed when a new elevator is accepted or when the elevator stopping component is used for regular maintenance. For this regulation, there is currently a lack of an effective device for testing the accidental movement distance of the elevator car.
Disclosure of Invention
An object of the present invention is to solve at least one of the above problems and disadvantages in the prior art.
According to one aspect of the present invention, there is provided an elevator car accidental movement distance testing apparatus including a test start switch connected in series to a safety loop of an elevator control system, so that the safety loop can be cut off by operating the test start switch to arrest the elevator car and start an elevator car accidental movement distance test.
According to an exemplary embodiment of the invention, the safety circuit is switched off by operating the test starting switch to start the test of the unintended movement distance of the elevator car when the elevator car enters a predetermined landing door zone.
According to another exemplary embodiment of the present invention, the device for testing the accidental moving distance of the elevator car further comprises a test circuit module, wherein the test circuit module comprises a relay, the relay is provided with a coil and a normally closed contact, and the normally closed contact is connected with the test starting switch in parallel; when the elevator car enters a preset elevator landing door area, the elevator control system inputs a direct current control signal to a coil of the relay to electrify the coil and disconnect the normally closed contact; after the normally closed contacts are opened, the safety circuit may be broken by switching the test enable switch from a closed position to an open position.
According to another exemplary embodiment of the invention, the coil of the relay is connected in series to a door zone detection circuit of the elevator control system, which door zone detection circuit comprises a photoelectric switch which is switched on when the elevator car enters a predetermined elevator landing door zone, so that the coil is electrically connected to a direct current supply of the elevator control system for inputting a direct current control signal to the coil.
According to another exemplary embodiment of the present invention, the elevator car accidental movement distance test device further comprises a test starting indicator light; when the elevator car enters a preset elevator landing door area, the photoelectric switch is conducted, so that the test starting indicating lamp is electrically connected to a direct current power supply of the elevator control system and is lightened to indicate an operator to start the elevator car accidental movement distance test.
According to another exemplary embodiment of the invention, the test circuit module further comprises a first interface, through which the test circuit module connects the coil and the normally closed contact of the relay in series to the door zone detection circuit and the safety circuit of the elevator control system, respectively.
According to another exemplary embodiment of the present invention, the first interface includes first and second terminals electrically connected to both ends of the coil, respectively, and third and fourth terminals electrically connected to both ends of the normally-closed contact, respectively.
According to another exemplary embodiment of the present invention, the test circuit module further comprises a second interface, through which the test circuit module connects the normally closed contacts of the relay in parallel to the test enable switch.
According to another exemplary embodiment of the present invention, the second interface includes a pair of connection terminals electrically connected to both ends of the normally-closed type contact, respectively, the pair of connection terminals being adapted to be electrically connected to both ends of the test enable switch, respectively.
According to another exemplary embodiment of the present invention, the test circuit module further comprises a circuit board on which the relay, the first interface and the second interface are integrated.
According to another exemplary embodiment of the present invention, the apparatus for testing an unexpected moving distance of an elevator car further comprises a case body and a case cover installed on an opening of the case body; the test circuit module is mounted in the case body, and the test start switch is mounted on the case cover.
According to another exemplary embodiment of the present invention, the elevator car accidental movement distance test apparatus further includes an elastic sealing member pressed between the case body and the cover to seal a fitting interface between the case body and the cover.
According to another exemplary embodiment of the invention, the first interface of the test circuit module is adapted to be electrically connected to a door zone detection loop and a safety loop of the elevator control system by means of cables; the device for testing the accidental moving distance of the elevator car further comprises a waterproof cable joint arranged on the box body, and the cable is led into the box body through the waterproof cable joint and is electrically connected with the first interface.
According to another exemplary embodiment of the present invention, a plurality of screw holes are formed on the case body, and connection holes corresponding to the plurality of screw holes are formed on the case cover; the elevator car accidental movement distance testing device further comprises a plurality of bolts, and the bolts penetrate through the connecting holes and are in threaded connection with the threaded holes respectively, so that the box cover is installed on the box body.
According to another exemplary embodiment of the present invention, the test enable switch has at least one normally closed contact, and the test enable switch is a non-automatically resettable, rotatable manual switch that can be rotated to switch the test enable switch to a closed position or an open position.
In the foregoing exemplary embodiments according to the present invention, the elevator car accidental movement distance test can be conveniently started by the elevator car accidental movement distance test device, and the operation is simple and convenient.
In addition, in some of the aforementioned exemplary embodiments of the invention, the device for testing the accidental moving distance of the elevator car has the advantages of compact structure, portability and low cost.
In addition, in some of the foregoing exemplary embodiments of the invention, the housing of the elevator car accidental movement distance testing apparatus can reach the IP65 waterproof protection level.
Furthermore, in some of the foregoing exemplary embodiments of the invention, the elevator car accidental movement distance test device may be conveniently connected to the elevator control system by a cable.
Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, and may assist in a comprehensive understanding of the invention.
Drawings
Fig. 1 shows an exploded schematic view of an elevator car accidental movement distance testing apparatus according to an exemplary embodiment of the present invention;
fig. 2 shows a schematic circuit diagram of the device for testing the accidental movement distance of an elevator car shown in fig. 1.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to one general technical concept of the present invention, there is provided an elevator car accidental movement distance testing apparatus including a test starting switch connected in series to a safety circuit of an elevator control system so that the safety circuit can be cut off by operating the test starting switch to arrest the elevator car and start an elevator car accidental movement distance test.
Fig. 1 shows an exploded schematic view of an elevator car accidental movement distance testing apparatus according to an exemplary embodiment of the present invention; fig. 2 shows a schematic circuit diagram of the device for testing the accidental movement distance of an elevator car shown in fig. 1.
As shown in fig. 1 and 2, in the illustrated embodiment, the elevator car unintended movement distance test apparatus includes a test starting switch 200. The test start switch 200 is connected in series to the safety circuit 20 of the elevator control system so that the safety circuit 20 can be cut off by operating the test start switch 200 to arrest the elevator car and to start the test of the accidental movement distance of the elevator car.
It is noted that the safety circuit 20 of the elevator control system is conventional and is present in any elevator, and therefore the safety circuit 20 will not be explained or illustrated herein.
In one embodiment of the invention, the test starting switch 200 is operated to switch off the safety circuit 20 to start the test of the unintended movement distance of the elevator car when the elevator car enters a predetermined elevator landing door zone, for example, during an empty elevator car leaving a third landing door open zone counted from the top floor and traveling without entering the elevator landing door open zone of the second floor counted from the top floor. The distance the car moves is performed by the elevator control system.
As shown in fig. 1 and 2, in the illustrated embodiment, the elevator car unintended movement distance testing apparatus further includes a test circuit module 300. The test circuit module 300 includes a relay 310. The relay 310 has a coil 311 and normally closed contacts 312. Normally closed contact 312 is connected in parallel with test enable switch 200.
As shown in fig. 1 and 2, in the illustrated embodiment, when the elevator car enters a predetermined landing door zone, the elevator control system inputs a dc control signal to the coil 311 of the relay 310, causing the coil 311 to become energized and opening the normally closed contact 312. After the normally closed contacts 312 are opened, the safety circuit 20 may be interrupted by switching the test enable switch 200 from the closed position to the open position. In this way, it is possible to stop the elevator car and to start the test of the distance of the accidental movement of the elevator car.
As shown in fig. 1 and 2, in the illustrated embodiment, the coil 311 of the relay 310 is connected in series to the door zone detection loop 10 of the elevator control system. The door zone detection circuit 10 comprises a photoelectric switch 11. When the elevator car enters a predetermined elevator landing door zone, the photoelectric switch 11 is turned on so that the coil 311 is electrically connected to a dc power supply of the elevator control system to input a dc control signal to the coil 311.
Although not shown, in an exemplary embodiment of the present invention, the elevator car accidental movement distance test apparatus further includes a test start indicator lamp. When the elevator car enters a predetermined elevator landing door area, the photoelectric switch 11 is turned on, so that the test starting indicating lamp is electrically connected to a direct current power supply of the elevator control system and is lighted to indicate an operator to start the elevator car accidental movement distance test.
As shown in fig. 1 and 2, in the illustrated embodiment, the test circuit module 300 further includes a first interface 320. The test circuit module 300 connects the coil 311 and the normally closed contact 312 of the relay 310 in series to the door zone detection circuit 10 and the safety circuit 20 of the elevator control system, respectively, through the first interface 320.
As shown in fig. 1 and 2, in the illustrated embodiment, the first interface 320 includes a first terminal 321 and a second terminal 322 electrically connected to both ends of the coil 311, respectively, and a third terminal 323 and a fourth terminal 324 electrically connected to both ends of the normally-closed contact 312, respectively.
As shown in fig. 1 and 2, in the illustrated embodiment, the test circuit module 300 further includes a second interface 330, and the test circuit module 300 connects the normally closed contact 312 of the relay 310 in parallel to the test enable switch 200 through the second interface 330.
As shown in fig. 1 and 2, in the illustrated embodiment, the second interface 330 includes a pair of connection terminals 331, 332 electrically connected to both ends of the normally-closed contact 312, respectively, the pair of connection terminals 331, 332 being adapted to be electrically connected to both ends of the test enable switch 200, respectively.
As shown in fig. 1 and 2, in the illustrated embodiment, the test circuit module 300 further includes a circuit board. The relay 310, the first interface 320, and the second interface 330 are integrated on a circuit board. The relay 310 is electrically connected to the first interface 320 and the second interface 330 by conductive traces on the circuit board.
As shown in fig. 1 and 2, in the illustrated embodiment, the apparatus for measuring an unintended moving distance of an elevator car further includes a case body 101 and a case cover 102 installed on an opening of the case body 101. The test circuit module 300 is installed in the case body 101, and the test starting switch 200 is installed on the case cover 102.
As shown in fig. 1 and 2, in the illustrated embodiment, the apparatus for testing an unexpected moving distance of an elevator car further includes an elastic sealing member 103, and the elastic sealing member 103 is compressed between the case body 101 and the cover 102 to seal a mating interface between the case body 101 and the cover 102.
As shown in fig. 1 and 2, in the illustrated embodiment, the first interface 320 of the test circuit module 300 is adapted to be electrically connected to the door zone detection circuit 10 and the safety circuit 20 of the elevator control system by means of cables. The device for testing the accidental moving distance of the elevator car further comprises a waterproof cable connector 400 arranged on the box body 101, and the cable is led into the box body 101 through the waterproof cable connector 400 and is electrically connected with the first interface 320.
As shown in fig. 1 and 2, in the illustrated embodiment, a plurality of screw holes are formed in the case body 101, and coupling holes corresponding to the plurality of screw holes are formed in the case cover 102. The device for testing the accidental movement distance of the elevator car further comprises a plurality of bolts 104, wherein the plurality of bolts 104 pass through the plurality of connecting holes respectively and are screwed into the plurality of threaded holes respectively so as to install the box cover 102 on the box body 101.
As shown in fig. 1 and 2, in the illustrated embodiment, test enable switch 200 has at least one normally closed contact. The test start switch 200 is a rotatable manual switch that is not automatically resettable, and the test start switch 200 can be switched to the on position or the off position by rotation.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the invention.
Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs in the claims shall not be construed as limiting the scope of the invention.
Claims (15)
1. An unexpected moving distance testing arrangement of elevator car which characterized in that includes:
a test start switch (200) connected in series to a safety loop (20) of an elevator control system, whereby the safety loop (20) can be cut off by operating the test start switch (200) to arrest the elevator car and to start an elevator car unintended movement distance test.
2. The device for testing the accidental movement distance of an elevator car according to claim 1, wherein:
-switching off the safety circuit (20) by operating the test starting switch (200) when the elevator car enters a predetermined elevator landing door zone, to start an elevator car unintended movement distance test.
3. The device for testing the accidental movement distance of an elevator car according to claim 2, further comprising:
test circuit module (300) comprising a relay (310),
the relay (310) has a coil (311) and a normally closed contact (312), the normally closed contact (312) being connected in parallel with the test enable switch (200),
when the elevator car enters a preset elevator landing door area, the elevator control system inputs a direct current control signal to a coil (311) of the relay (310), so that the coil (311) is electrified and the normally closed contact (312) is opened,
after the normally closed contacts (312) are opened, the safety circuit (20) may be shut off by switching the test enable switch (200) from a closed position to an open position.
4. The device of claim 3, wherein:
the coil (311) of the relay (310) is connected in series to the door zone detection loop (10) of the elevator control system,
the door zone detection circuit (10) comprises a photoelectric switch (11), when the elevator car enters a predetermined elevator landing door zone, the photoelectric switch (11) is conducted, so that the coil (311) is electrically connected to a direct current power supply of the elevator control system, so as to input a direct current control signal to the coil (311).
5. The device of claim 4, wherein:
the device for testing the accidental moving distance of the elevator car also comprises a test starting indicator lamp,
when the elevator car enters a preset elevator landing door area, the photoelectric switch (11) is conducted, so that the test starting indicating lamp is electrically connected to a direct current power supply of the elevator control system and is lightened to indicate an operator to start the elevator car accidental movement distance test.
6. The device of claim 5, wherein:
the test circuit module (300) further comprises a first interface (320), and the test circuit module (300) connects a coil (311) and a normally closed contact (312) of the relay (310) in series to a door zone detection loop (10) and a safety loop (20) of the elevator control system, respectively, through the first interface (320).
7. The device of claim 6, wherein:
the first interface (320) includes a first terminal (321) and a second terminal (322) electrically connected to both ends of the coil (311), respectively, and a third terminal (323) and a fourth terminal (324) electrically connected to both ends of the normally closed contact (312), respectively.
8. The device of claim 7, wherein:
the test circuit module (300) further comprises a second interface (330), and the test circuit module (300) connects the normally closed contact (312) of the relay (310) to the test starting switch (200) in parallel through the second interface (330).
9. The device of claim 8, wherein:
the second interface (330) includes a pair of connection terminals (331, 332) electrically connected to both ends of the normally closed type contact (312), respectively, the pair of connection terminals (331, 332) being adapted to be electrically connected to both ends of the test enable switch (200), respectively.
10. The device for testing the accidental movement distance of an elevator car according to claim 9, wherein:
the test circuit module (300) further comprises a circuit board on which the relay (310), the first interface (320) and the second interface (330) are integrated.
11. The device for testing the accidental movement distance of an elevator car according to claim 10, wherein:
the device for testing the accidental moving distance of the elevator car further comprises a box body (101) and a box cover (102) arranged on an opening of the box body (101);
the test circuit module (300) is installed in the case body (101), and the test starting switch (200) is installed on the case cover (102).
12. The device for testing the accidental movement distance of an elevator car according to claim 11, wherein:
the device for testing the accidental moving distance of the elevator car further comprises an elastic sealing member (103), wherein the elastic sealing member (103) is squeezed between the box body (101) and the box cover (102) so as to seal a matching interface between the box body (101) and the box cover (102).
13. The elevator car accidental movement distance testing apparatus according to claim 12, characterized in that:
a first interface (320) of the test circuit module (300) is adapted to be electrically connected by a cable to a door zone detection loop (10) and a safety loop (20) of the elevator control system;
the device for testing the accidental moving distance of the elevator car further comprises a waterproof cable connector (400) arranged on the box body (101), and the cable is led into the box body (101) through the waterproof cable connector (400) and is electrically connected with the first interface (320).
14. The device for testing the accidental movement distance of an elevator car according to claim 11, wherein:
a plurality of threaded holes are formed in the box body (101), and connecting holes corresponding to the threaded holes are formed in the box cover (102);
the device for testing the accidental moving distance of the elevator car further comprises a plurality of bolts (104), wherein the bolts (104) respectively penetrate through the connecting holes and are respectively screwed into the threaded holes so as to install the box cover (102) on the box body (101).
15. The device for testing the accidental movement distance of an elevator car according to claim 1, wherein:
the test starting switch (200) is at least provided with a normally closed contact, the test starting switch (200) is a rotatable manual switch which cannot be automatically reset, and the test starting switch (200) can be switched to a closed position or an open position through rotation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035386.9A CN110745661B (en) | 2019-10-29 | 2019-10-29 | Device for testing accidental moving distance of elevator car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911035386.9A CN110745661B (en) | 2019-10-29 | 2019-10-29 | Device for testing accidental moving distance of elevator car |
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| CN110745661A true CN110745661A (en) | 2020-02-04 |
| CN110745661B CN110745661B (en) | 2022-01-04 |
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Citations (6)
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| CN106365008A (en) * | 2016-11-03 | 2017-02-01 | 广东卓梅尼技术股份有限公司 | Automatic testing method and system for unintended car movement protection of elevator |
| CN106429705A (en) * | 2016-08-22 | 2017-02-22 | 苏州博量电梯科技有限公司 | Anti-accidental movement elevator control device and method |
| CN108100795A (en) * | 2017-12-20 | 2018-06-01 | 浙江省特种设备检验研究院 | A kind of detection mancarried device of accidental movement of elevator cage |
| CN108408511A (en) * | 2018-05-15 | 2018-08-17 | 杭州优迈科技有限公司 | A kind of programmable UCMP detection devices of elevator |
| CN108483167A (en) * | 2018-05-22 | 2018-09-04 | 苏州江南嘉捷电梯有限公司 | A kind of elevator single armed band-type brake test device and method |
| CN109534120A (en) * | 2018-12-12 | 2019-03-29 | 广东省特种设备检测研究院（广东省特种设备事故调查中心） | A kind of accidental movement of elevator cage protective device apparatus safe property checking device and detection method |
-
2019
- 2019-10-29 CN CN201911035386.9A patent/CN110745661B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429705A (en) * | 2016-08-22 | 2017-02-22 | 苏州博量电梯科技有限公司 | Anti-accidental movement elevator control device and method |
| CN106365008A (en) * | 2016-11-03 | 2017-02-01 | 广东卓梅尼技术股份有限公司 | Automatic testing method and system for unintended car movement protection of elevator |
| CN108100795A (en) * | 2017-12-20 | 2018-06-01 | 浙江省特种设备检验研究院 | A kind of detection mancarried device of accidental movement of elevator cage |
| CN108408511A (en) * | 2018-05-15 | 2018-08-17 | 杭州优迈科技有限公司 | A kind of programmable UCMP detection devices of elevator |
| CN108483167A (en) * | 2018-05-22 | 2018-09-04 | 苏州江南嘉捷电梯有限公司 | A kind of elevator single armed band-type brake test device and method |
| CN109534120A (en) * | 2018-12-12 | 2019-03-29 | 广东省特种设备检测研究院（广东省特种设备事故调查中心） | A kind of accidental movement of elevator cage protective device apparatus safe property checking device and detection method |
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| CN110745661B (en) | 2022-01-04 |
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