CN210214458U - Accidental movement alarm device for elevator car - Google Patents
Accidental movement alarm device for elevator car Download PDFInfo
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- CN210214458U CN210214458U CN201921276462.0U CN201921276462U CN210214458U CN 210214458 U CN210214458 U CN 210214458U CN 201921276462 U CN201921276462 U CN 201921276462U CN 210214458 U CN210214458 U CN 210214458U
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Abstract
The utility model provides an unexpected alarm device that removes of elevator car, including the elevator control cabinet, the device still includes: a signal acquisition unit and a measurement unit; the measurement unit is installed in elevator car, and signal acquisition unit sets up in the backplate of elevator switch board, the measurement unit includes: acceleration sensor, first microprocessor, first wireless communication module, signal acquisition unit includes: the elevator door lock loop detection circuit is connected with the elevator control cabinet, and the first wireless communication module is in wireless communication with the second wireless communication module; the elevator car can be effectively alarmed by accidental movement when the elevator opens the door and gets on or off passengers, so that the use safety of the elevator is ensured.
Description
Technical Field
The utility model relates to a special equipment technical field, especially an unexpected alarm device that removes of elevator car.
Background
With the popularization of traction elevators in buildings, the safety of elevators is more and more emphasized by passengers and relevant departments of the country. The accidental movement of the elevator car easily causes the accidental injury of elevator passengers, several elevator safety accidents which happen in the near term nationwide all occur in the elevator door area, and the direct reasons of most accidents are shearing, extrusion and the like of entrances of halls and car doors. The main causes of these accidents are brake failure, drive system failure, and operator error. For this reason, the national standardization committee added the relevant contents of "unexpected car movement protection means (hereinafter referred to as UCMP") to the first modification sheet of GB7588-2003 "elevator manufacturing and installation safety code".
Because UCMP is a newly-added elevator safety protection device, the types and the principles of the UCMP configured by each elevator manufacturing unit are different, and the UCMP configured by different types of traction elevators is also greatly different. Moreover, the UCMP test methods given by elevator manufacturing units in the type test certificates are also different, and most of the given test methods are implemented in a software simulation state, which brings much trouble to many inspectors. The recently issued modification list No. 2 of elevator supervision inspection and periodic inspection rules, namely traction and forced drive elevators (TSG T7001-2009), adds an inspection project of a UCMP test, and the inspection method is only performed by a construction unit or a maintenance unit according to a type test certificate method provided by a manufacturing plant, and is observed and confirmed by an inspector on site. Different elevator inspectors often adopt different inspection methods during inspection, and for elevators of the same type, different inspectors often have differences due to the understood difference inspection methods.
In summary, on the one hand, the non-universality of the inspection method causes great inconvenience to field inspection personnel. On the other hand, the UCMP test process of all the elevators of all brands is finished under software simulation, various limitations and loopholes exist, test effectiveness is not visually given, and inspectors can only follow a type test method given by an installation unit to carry out on-site observation and confirmation, so that potential safety hazards can be left for the elevators.
Name definition: 1. unexpected car movement of car
That is, in the unlocked area and in the door-open state, the car does not command movement away from the landing, and movement due to loading and unloading is not included.
2. Accidental car movement protection device (Unended car movement protection mean, UCMP for short)
I.e. in the case of unlocked landing doors and unlocked car doors, the elevator should have means to prevent or stop the movement of the car from the landing, due to the failure of any single element of the drive machine or drive control system on which the car is run safely, causing the car to move unintentionally away from the landing. Failure of the ropes, chains and sheaves, drums, sprockets, except for failure of the sheaves includes a sudden loss of traction capability.
Disclosure of Invention
In order to overcome the problems, the utility model aims at providing an unexpected alarm device that removes of elevator car can effectively report to the police to the unexpected removal of elevator car when the elevator opens the door and gets on or off the passenger to guarantee the safe in utilization of elevator.
The utility model discloses a following scheme realizes: an accidental movement warning device for an elevator car, comprising an elevator control cabinet, the device further comprising: a signal acquisition unit, a measuring unit of the speed and the displacement of the lift car; the measurement unit is installed in elevator car, the signal acquisition unit sets up in the backplate of elevator switch board, the measurement unit includes: acceleration sensor, first microprocessor, first wireless communication module, acceleration sensor, first wireless communication module all with first microprocessor is connected, the signal acquisition unit includes: a sedan-chair door switch, lift-cabin door lock return circuit detection circuitry, second microprocessor, audible-visual annunciator, second wireless communication module that targets in place for detecting the sedan-chair door closure state of elevator car, sedan-chair door switch, lift-cabin door lock return circuit detection circuitry, audible-visual annunciator, second wireless communication module that targets in place all with second microprocessor connects, elevator door lock return circuit detection circuitry with the elevator control cabinet is connected, first wireless communication module carries out wireless communication with second wireless communication module, the sedan-chair door sets in place the middle part of sill on elevator car's sedan-chair door.
Furthermore, the model of the first microprocessor and the second microprocessor is an ARM series microprocessor.
Further, the acceleration sensor is an MMA7260QT triaxial acceleration sensor.
Further, the car door in-place switch is a proximity switch, an electromagnetic switch or a travel switch.
Furthermore, the signal acquisition unit is adsorbed on a back plate of the elevator control cabinet through a magnet.
Furthermore, power modules are arranged in the signal acquisition unit and the measurement unit.
The beneficial effects of the utility model reside in that: the utility model discloses a switch that targets in place is put to sedan-chair door among the signal acquisition unit, elevator door lock return circuit detection circuitry judges whether closed state and elevator control cabinet door lock return circuit break off to elevator car, it measures elevator car's speed and displacement to trigger acceleration sensor, open when the sedan-chair door, the disconnection of lock return circuit, and measure the elevator and still be in running state, then audible-visual annunciator among the trigger signal acquisition unit reports to the police, this patent can be more effective, general detects elevator car, the unexpected removal of elevator car reports to the police when effectively opening the door the passenger from top to bottom to the elevator, thereby guarantee the safety in utilization of elevator.
Drawings
Fig. 1 is the structure schematic diagram of the utility model discloses well alarm device installs on elevator car.
Fig. 2 is a schematic diagram of a specific circuit structure in the device of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 and 2, the accidental movement alarm device for the elevator car of the present invention includes an elevator control cabinet 1, and the device further includes: a signal acquisition unit 4, a measuring unit 3 for the speed and displacement of the lift car; the measurement unit 3 is installed in the elevator car 2, the signal acquisition unit 4 is arranged on the back plate 12 of the elevator control cabinet 1, and the measurement unit 3 comprises: acceleration sensor 31, first microprocessor 32, first wireless communication module 33, acceleration sensor 31, first wireless communication module 33 all with first microprocessor 32 is connected, signal acquisition unit 4 includes: a sedan-chair door that is used for detecting sedan-chair door closure state of elevator car 2 puts in place switch 41, lift-cabin door lock return circuit detection circuitry 42, second microprocessor 43, audible-visual annunciator 44, second wireless communication module 45, sedan-chair door puts in place switch 41, lift-cabin door lock return circuit detection circuitry 42, audible-visual annunciator 44, second wireless communication module 45 all with second microprocessor 43 is connected, lift-cabin door lock return circuit detection circuitry 42 with elevator control cabinet 1 is connected, first wireless communication module 33 carries out wireless communication with second wireless communication module 45, sedan-chair door puts in place switch 41 and sets up the middle part of sill on the sedan-chair door of elevator car 2. Among them, the elevator door lock loop detection circuit is already the prior art, and the papers disclosed in the prior art can be referred to: classification number of middle graph: TP273, title: design of an elevator door lock loop detection circuit, author: all the matters are strong; or see application No.: 201621340088.2, the topics are: a Chinese patent of an elevator safety loop detection circuit.
The utility model discloses in, first microprocessor and second microprocessor's model is ARM series microprocessor. The acceleration sensor is an MMA7260QT triaxial acceleration sensor. Wherein, the audible and visual alarm adopts a TGSG-07 audible and visual alarm; the first wireless communication module and the second wireless communication module may employ: EMW3162 wireless communication module.
The car door in-place switch is a proximity switch, an electromagnetic switch or a travel switch. Such as: LX33 series travel switches. And power modules 34 are arranged in the signal acquisition unit and the measurement unit. A man-machine interaction display screen is arranged in the car and is connected with the first microprocessor.
The signal acquisition unit is adsorbed on the back plate 12 of the elevator control cabinet 1 through a magnet. The elevator control cabinet is internally provided with an elevator control cabinet main board 11, the elevator control cabinet is the prior art, the internal structure of the elevator control cabinet is not described in detail, and an elevator door lock loop detection circuit is connected with the elevator control cabinet main board 11.
The working principle of the utility model is as follows: when a UCMP test of the car accidental movement protection device is carried out, a car door in-place switch in a trigger signal acquisition unit continuously reads the closing state of a car door, an elevator door lock loop detection circuit in the signal acquisition unit continuously reads a door lock loop signal on an elevator control cabinet, when the car door is read to be in an opening state and the door lock loop is disconnected, a second microprocessor sends the trigger signal to a first wireless communication module of a measurement unit on the floor of the car through a second wireless communication module, the first microprocessor of the measurement unit calculates the braking distance and the maximum speed of the car before braking through an acceleration sensor, the braking distance of the UCMP is obtained by adding communication fixed delay time, and the braking distance and the maximum speed of the car before braking are displayed on a man-machine interaction display screen of the car. If the car door opening state and the door lock loop are disconnected but the elevator is not stopped, the first microprocessor sends the trigger signal to the second wireless communication module through the first wireless communication module, and the second microprocessor triggers the audible and visual alarm to continuously send out audible and visual alarm signals to prompt the tester that the current state is dangerous.
The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (6)
1. The utility model provides an unexpected alarm device that removes of elevator car, includes the elevator control cabinet, its characterized in that: the device further comprises: a signal acquisition unit, a measuring unit of the speed and the displacement of the lift car; the measurement unit is installed in elevator car, the signal acquisition unit sets up in the backplate of elevator switch board, the measurement unit includes: acceleration sensor, first microprocessor, first wireless communication module, acceleration sensor, first wireless communication module all with first microprocessor is connected, the signal acquisition unit includes: a sedan-chair door switch, lift-cabin door lock return circuit detection circuitry, second microprocessor, audible-visual annunciator, second wireless communication module that targets in place for detecting the sedan-chair door closure state of elevator car, sedan-chair door switch, lift-cabin door lock return circuit detection circuitry, audible-visual annunciator, second wireless communication module that targets in place all with second microprocessor connects, elevator door lock return circuit detection circuitry with the elevator control cabinet is connected, first wireless communication module carries out wireless communication with second wireless communication module, the sedan-chair door sets in place the middle part of sill on elevator car's sedan-chair door.
2. The device of claim 1, wherein: the first microprocessor and the second microprocessor are in ARM series.
3. The device of claim 1, wherein: the acceleration sensor is an MMA7260QT triaxial acceleration sensor.
4. The device of claim 1, wherein: the car door in-place switch is a proximity switch, an electromagnetic switch or a travel switch.
5. The device of claim 1, wherein: the signal acquisition unit is adsorbed on the back plate of the elevator control cabinet through a magnet.
6. The device of claim 1, wherein: and power modules are arranged in the signal acquisition unit and the measurement unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921276462.0U CN210214458U (en) | 2019-08-08 | 2019-08-08 | Accidental movement alarm device for elevator car |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921276462.0U CN210214458U (en) | 2019-08-08 | 2019-08-08 | Accidental movement alarm device for elevator car |
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| CN210214458U true CN210214458U (en) | 2020-03-31 |
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| CN201921276462.0U Active CN210214458U (en) | 2019-08-08 | 2019-08-08 | Accidental movement alarm device for elevator car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874771A (en) * | 2020-08-11 | 2020-11-03 | 广东省特种设备检测研究院 | Elevator car accidental movement protection device testing system and method |
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2019
- 2019-08-08 CN CN201921276462.0U patent/CN210214458U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111874771A (en) * | 2020-08-11 | 2020-11-03 | 广东省特种设备检测研究院 | Elevator car accidental movement protection device testing system and method |
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