CN201553523U - Linkage device for safety protective door of material hoister - Google Patents
Linkage device for safety protective door of material hoister Download PDFInfo
- Publication number
- CN201553523U CN201553523U CN2009201800456U CN200920180045U CN201553523U CN 201553523 U CN201553523 U CN 201553523U CN 2009201800456 U CN2009201800456 U CN 2009201800456U CN 200920180045 U CN200920180045 U CN 200920180045U CN 201553523 U CN201553523 U CN 201553523U
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- safety
- protective door
- safety protective
- intermediate relay
- lead limit
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Abstract
The utility model relates to a linkage device for a safety protective door of a material hoister, which belongs to the field of building safety and mainly comprises a crane circuit control system, lead limit switches SQ 1 to SQ n, an intermediate relay KM3, a 36-V control transformer T36V and counter-rotating AC contactors KM1 and KM2. Routine safety inspection shows that safety accidents can easily happen to working personnel when the material hoister is in use due to that the safety protective door at the position of a channel entrance on each floor is open without any protection at the periphery and the operating voltage is usually 380V. In the utility model, the operating voltage is reduced to 36V (safety voltage), and the lead limit switches SQ 1 to SQ n of each floor are connected by the intermediate relay in a hanging manner; therefore, the safety protective door at the position of the channel entrance cannot be opened until a hanging basket runs in place, and the hanging basket cannot run if the safety protective door of any floor is not closed. The linkage device greatly enhances the safety of the working personnel.
Description
Technical field
The utility model belongs to the building safety field, relates to a kind of safety protective door linkage.
Background technology
When finding that in routine safety is checked most of material elevator uses, the safety protective door at each place, floor porthole of material lifting and construction lifting is in opening-wide state, minority part even unshielded door.It is unshielded that this state faces the limit when making operating personnel's high-rise working, and safety misadventure easily takes place.What general gig operating system was used all is the 380v high potential, and Danger Electric shock risk takes place operating personal easily.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of safe and reliable material elevator safety protective door linkage is provided, and purpose is to prevent that effectively the floor personnel of connecting material from having an accident.
The technical scheme that its technical matters that solves the utility model adopts is: material elevator safety protective door linkage, mainly comprise the loop wheel machine circuit control system, lead limit switch SQ1 ... SQn, intermediate relay KM3,36v control transformer T36v and rotating AC contactor KM1 and KM2, it is characterized in that: 36v control transformer T36v is installed in the loop wheel machine circuit control system, by intermediate relay KM3 with all lead limit switch SQ1 ... SQn hangs connection, lead limit switch SQ1 ... SQn is installed in the porthole and locates on each safety protective door, quantity is decided according to building storey, and place, every layer of porthole installs one.
Described loop wheel machine circuit control system, the three-phase alternating-current supply of its major loop are through the main contact of low-voltage circuit breaker QF, fuse FU, rotating AC contactor KM1 or KM2, and thermal relay FR drives lifting motor M.
Described 36v control transformer T36v makes voltage drop to the 36v safety voltage, guarantees each lead limit switch SQ1 ... the Electrical Safety of SQn.
When the utility model uses, be installed in place, each layer porthole, effect by 36v control transformer T36v and rotating AC contactor KM1 or KM2, voltage is reduced to the 36v safety voltage, and by intermediate relay with each layer lead limit switch SQ1 ... SQn hangs connection, when the hanging basket operation is put in place, just can open place, porthole protective door, if there is any one deck protective door not close, then hanging basket can't move.This linkage, easy to operate, cost of manufacture is cheap, and is safe and reliable, can effectively prevent the connect material generation of personnel's accident of floor.
Description of drawings
Figure of description is a circuit diagram of the present utility model.
QF is a low-voltage circuit breaker among the figure, and FU is a fuse, and KM1 and KM2 are the rotating AC contactor, and FR is a thermal relay, M is a motor, and SB1 is total guard's valve, and SB2 and SB3 are the rotating starting switches, SQ1...SQn is a lead limit switch, and KM3 is an intermediate relay, and T36v is the 36v control transformer.
The specific embodiment
Followingly concrete enforcement of the present utility model is described in detail according to Figure of description:
During the utility model practical application, earlier 36v control transformer T36v and intermediate relay KM3 are installed in the loop wheel machine circuit control system, lead limit switch SQ1...SQn is installed on each place, porthole safety protective door, hangs by intermediate relay KM3 to be linked on the 36v control transformer T36v.
During the circuit operation, the three-phase alternating-current supply of major loop is through the main contact of low-voltage circuit breaker QF, fuse FU, rotating AC contactor KM1 and KM2, and thermal relay FR drives lifting motor M.Control loop 380V voltage is through total guard's valve SB1, and rotating starting switch SB2 or SB3 are through two-stage interlocked control contact, and thermal relay FR and dead space switch make rotating AC contactor KM1 and KM2 get electric work, with drive motor M forward or reverse.Each layer door switch SQ1...SQn is to intermediate relay KM3 coil power supply, and be connected in series in the control loop with the contact of intermediate relay KM3, so only all after every layer protective door all shuts, intermediate relay KM3 circuit is connected, reached the purpose that safety is carried out ahead of schedule with this at the SQ1...SQn door switch.
36v control transformer T36v drops to the 36v safety voltage with voltage, has guaranteed the Electrical Safety of each lead limit switch SQ1...SQn, has stopped the Danger Electric shock risk that operating personal easily produces in long-term operation.Intermediate relay KM3 hangs connection with each layer lead limit switch SQ1...SQn, and protective door is in normally off, and power supply is in normal open, and hanging basket can move, and closes the floor safety protective door after the workman connects material and finishes, and hanging basket just can move to another layer.Can make the logical device mouth of each layer place safety protective door be in normally off like this, prevent that effectively the floor personnel of connecting material from safety misadventure taking place.
Claims (2)
1. material elevator safety protective door linkage, mainly comprise loop wheel machine circuit control system, lead limit switch SQ1 ... SQn, intermediate relay KM3,36v control transformer T36v and rotating AC contactor KM1 and KM2, it is characterized in that: 36v control transformer T36v is installed in the loop wheel machine circuit control system, by intermediate relay KM3 with all lead limit switch SQ1 ... SQn hangs connection, lead limit switch SQ1 ... SQn is installed in the porthole and locates on each safety protective door, quantity is decided according to building storey, and place, every layer of porthole installs one.
2. material elevator safety protective door linkage according to claim 1 is characterized in that: the loop wheel machine circuit control system is formed by connecting by circuit breaker Q F, fuse FU, AC contactor KM1 and KM2, relay FR, motor M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201800456U CN201553523U (en) | 2009-10-23 | 2009-10-23 | Linkage device for safety protective door of material hoister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201800456U CN201553523U (en) | 2009-10-23 | 2009-10-23 | Linkage device for safety protective door of material hoister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553523U true CN201553523U (en) | 2010-08-18 |
Family
ID=42613196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201800456U Expired - Fee Related CN201553523U (en) | 2009-10-23 | 2009-10-23 | Linkage device for safety protective door of material hoister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553523U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197827A (en) * | 2015-09-08 | 2015-12-30 | 西达（无锡）生物科技有限公司 | Safety linkage device |
| CN107487697A (en) * | 2017-07-04 | 2017-12-19 | 重庆旭彩装订有限公司 | A kind of chain guide type baggage elevator |
-
2009
- 2009-10-23 CN CN2009201800456U patent/CN201553523U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197827A (en) * | 2015-09-08 | 2015-12-30 | 西达（无锡）生物科技有限公司 | Safety linkage device |
| CN107487697A (en) * | 2017-07-04 | 2017-12-19 | 重庆旭彩装订有限公司 | A kind of chain guide type baggage elevator |
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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: 20100818 Termination date: 20161023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |