CN203048349U - Non-contact type top-bumping-proof safety protection device of building hoist - Google Patents
Non-contact type top-bumping-proof safety protection device of building hoist Download PDFInfo
- Publication number
- CN203048349U CN203048349U CN 201220744932 CN201220744932U CN203048349U CN 203048349 U CN203048349 U CN 203048349U CN 201220744932 CN201220744932 CN 201220744932 CN 201220744932 U CN201220744932 U CN 201220744932U CN 203048349 U CN203048349 U CN 203048349U
- Authority
- CN
- China
- Prior art keywords
- sensor
- building hoist
- guide rail
- bumping
- protection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a non-contact type top-bumping-proof safety protection device of a building hoist. The non-contact type top-bumping-proof safety protection device of the building hoist comprises a toothed bar, a sensor, a signal cable, a motor, a guide rail, and an installing base, wherein the sensor is installed at one side of the toothed bar arranged on the guide rail, and the sensor is connected with the motor through the signal cable and installed on the guide rail through the installing base. The direct-current type inductive sensor does not directly contact with the metal toothed bar, and therefore abrasion cannot be generated. The sensor has a function of overload protection, a function of short-circuit protection and a function of reversed-polarity protection, can only sense metal objects, and cannot generate false operations caused by nonmetal sundries, and therefore the sensor is safe and reliable. The signal cable is provided with a connector so that debugging and repair of the sensor are very convenient. The non-contact type top-bumping-proof safety protection device of the building hoist solves the problem that potential safety hazards are caused by human factors such as disassembly of safety limiting trigger board in the process of assembly and disassembly, and therefore the building hoist is safe and reliable.
Description
Technical field
The utility model relates to anti-safety guard of rushing to summit in a kind of building hoist installing/dismounting process.
Background technology
Present most of building hoist adopts the contact limit switch and exchanges limit switch as the anti-safety guard of rushing to summit of building hoist, but all must trigger board be installed at the building hoist guide rail.Trigger board can be removed when installing/dismounting, causes building hoist to lose anti-safety guard of rushing to summit when installing/dismounting; Control the operation up and down of building hoist in addition during installing/dismounting by the outer supernumerary segment button box of cage, can't cause circuit breaker or RCCB action if unconventional short circuit takes place this moment, and there is danger of rushing to summit out of control in building hoist.In case the accident of rushing to summit, gently then rack-and-gear damage, steel structure distortion, heavy then elevator roof fall is tumbled, the fatal crass.
The utility model content
The purpose of this utility model provides a kind of simple and practical, dependable performance, can effectively prevent the contactless anti-safety guard of rushing to summit of building hoist that cage is rushed to summit in the installing/dismounting
, tear in the process to solve peace that upper limit and cutoff are spacing to be removed ineffective or the supernumerary segment button box takes place not cause the unconventional short trouble of circuit breaker trip and cause the potential safety hazard that cage is rushed to summit because of trigger board open.
The technical scheme that the utility model addresses the above problem is:
The contactless anti-safety guard of rushing to summit of building hoist; it comprises tooth bar, sensor, signal cable, motor, guide rail, mount pad; be installed in the tooth bar one side sensor installation on the guide rail, sensor connects motor by signal cable, and sensor is installed on the guide rail by mount pad.
The utility model adopts contactless once-through type inductive pickoff to detect the side of building hoist guide rail tooth bar, sensor is responded to the tooth bar side on the guide rail in real time, when sensor sensing during less than tooth bar, then send instruction by signal cable and cut off the propulsion source of cage and the control path of supernumerary segment button box to electric-control system, and allow the drg band-type brake make cage out of service, and consider certain safety distance, guarantee that cage transmission system drives wheel does not roll guide rail away from roller.
Adopt the mount pad of band safeguard function, sensor partly is hidden in the mount pad, and protection sensor and signal cable be pressurized not; Once-through type inductive pickoff detection faces and tooth bar lateral distance are 5-12mm.
Compared with prior art the utility model has following advantage: the not direct contacting metal tooth bar of once-through type inductive pickoff, can not produce wearing and tearing, sensor has overload protection, short-circuit protection and reverse polarity protection's function, and only respond to metal object, can be because nonmetal impurities produce misoperation, safe and reliable; Adopt the signal cable of band connector, the debugging of sensor and maintain and replace are extremely convenient; Solved the potential safety hazard that in the installing/dismounting process, causes because of human elements such as the spacing trigger board of safety are removed, made building hoist more safe and reliable.
Description of drawings
Fig. 1 is the utility model integral structure;
Fig. 2 is the birds-eye view of Fig. 1.
The specific embodiment
Referring to Fig. 1, shown in 2, the utility model comprises contactless once-through type inductive pickoff 2, the signal cable 3 of band connector, the mount pad 7 of band safeguard function, sensor 2 sensitive surface are 5-12mm apart from the tooth bar side, and detect tooth bar 1 in real time, when tooth bar 1 is in the detection range of sensor 2, produce eddy current in the tooth bar 1, consuming sensor internal oscillator energy, change the oscillator amplitude, when reaching a certain amplitude, the action of back level trigger circuit produces a switching value and exports to electric-control system in the sensor, and can handle building hoist normal rise and fall by master controller or supernumerary segment button box this moment, when sensor 2 is run out of tooth bar 1, sensor 2 cuts off switching value output by signal cable 3, and electric-control system cuts off drive motor 4 power supplys simultaneously, allows drg newspaper lock make the elevator emergency.Sensor 2 is installed in 24CM places above the transmission frame 4, and this rests in the safe range on the guide rail 6 all the time apart from the drive wheel that can guarantee driving system when sensor-triggered and roller.
Claims (2)
1. the contactless anti-safety guard of rushing to summit of building hoist; it is characterized in that: comprise tooth bar, sensor, signal cable, motor, guide rail, mount pad; be installed in the tooth bar one side sensor installation on the guide rail; sensor connects motor by signal cable, and sensor is installed on the guide rail by mount pad.
2. the contactless anti-safety guard of rushing to summit of building hoist according to claim 1, it is characterized in that: sensor is the once-through type inductive pickoff, its detection faces and tooth bar lateral distance are 5-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744932 CN203048349U (en) | 2012-12-31 | 2012-12-31 | Non-contact type top-bumping-proof safety protection device of building hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744932 CN203048349U (en) | 2012-12-31 | 2012-12-31 | Non-contact type top-bumping-proof safety protection device of building hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203048349U true CN203048349U (en) | 2013-07-10 |
Family
ID=48731328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744932 Expired - Fee Related CN203048349U (en) | 2012-12-31 | 2012-12-31 | Non-contact type top-bumping-proof safety protection device of building hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203048349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191854A (en) * | 2017-01-31 | 2019-08-30 | 株式会社日立制作所 | Lift appliance |
-
2012
- 2012-12-31 CN CN 201220744932 patent/CN203048349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191854A (en) * | 2017-01-31 | 2019-08-30 | 株式会社日立制作所 | Lift appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |