CN214623424U - Water level control system for elevator shaft - Google Patents
Water level control system for elevator shaft Download PDFInfo
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- CN214623424U CN214623424U CN202120926786.5U CN202120926786U CN214623424U CN 214623424 U CN214623424 U CN 214623424U CN 202120926786 U CN202120926786 U CN 202120926786U CN 214623424 U CN214623424 U CN 214623424U
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Abstract
The utility model discloses an elevator shaft water level control system, which comprises a water level detection head, a switching power supply WY, a water level detection relay KJ, a water pump control contactor KM and a water pump; one end of a relay coil of the water level detection relay KJ is connected with a positive terminal V + of the switching power supply WY, the other end of the relay coil is connected with a water level upper limit terminal M4, and the water level upper limit terminal M4 is respectively connected with a water level upper limit terminal M3 and a water level lower limit terminal M2 through a normally open contact KJ-1; the water level lower limit terminal M1 is directly connected with the negative terminal V-of the switching power supply WY; a contactor coil of the water pump control contactor KM and a normally open contact KJ-2 of a water level detection relay KJ are connected in series between L, N lines of alternating current mains supply; normally open contacts KM-1 and KM-2 of the water pump control contactor KM are respectively connected in series with two alternating current power supply lines of the water pump. The utility model discloses can have under the condition of ponding in the elevator well, automatic start drainage system stops the elevator, ensures elevator and passenger personnel's safety.
Description
Technical Field
The utility model relates to an elevator safety field, in particular to elevator well water level control system.
Background
At present, in some elevators used in special environments, such as outdoor elevators, additional elevators or ordinary elevators, water seepage can occur in a hoistway, and if the hoistway is in a semi-open type or cannot be completely closed, the situation of water accumulation can exist in a hoistway pit of the elevator. How to ensure this type of elevator or elevator and passenger personnel's safety under this kind of condition, the scheme of solving at present is through whether there is ponding of manual observation, then uses tools such as water pump to pump away ponding, and the ageing is too poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: the utility model provides an elevator well water level control system, in time clear away the ponding that exists at the elevator well, ensure elevator and passenger personnel's safety.
The technical scheme of the utility model is that:
the water level control system of the elevator shaft comprises a water level detection head M, a switching power supply WY, a water level detection relay KJ, a water pump control contactor KM and a water pump; wherein:
the water level detection head M is distributed with mutually insulated water level lower limit terminals M1 and M2 and water level upper limit terminals M3 and M4;
the switch power supply WY and the water pump are powered by alternating current commercial power, and the switch power supply WY outputs direct current through a positive terminal V + and a negative terminal V-;
the water level detection relay KJ comprises a relay coil and normally open contacts KJ-1 and KJ-2;
the water pump control contactor KM comprises a contactor coil and normally open contacts KM-1 and KM-2;
one end of a relay coil of the water level detection relay KJ is connected with a positive terminal V + of the switching power supply WY, the other end of the relay coil is connected with a water level upper limit terminal M4, and the water level upper limit terminal M4 is respectively connected with a water level upper limit terminal M3 and a water level lower limit terminal M2 through a normally open contact KJ-1; the water level lower limit terminal M1 is directly connected with the negative terminal V-of the switching power supply WY;
a contactor coil of the water pump control contactor KM and a normally open contact KJ-2 of a water level detection relay KJ are connected in series between L, N lines of alternating current mains supply; normally open contacts KM-1 and KM-2 of the water pump control contactor KM are respectively connected in series with two alternating current power supply lines of the water pump.
Preferably, the water pump control contactor KM further comprises a normally open contact KM-3, the normally open contact KM-3 is connected with a monitoring point of an elevator control system, and the monitoring point sends an elevator stopping signal to the elevator when the normally open contact KM-3 is closed.
Preferably, the contactor coil of the water pump control contactor KM is also connected in series with an emergency stop switch ST.
Preferably, a manual switch NOE is connected in parallel to the normally open contact KJ-2 of the water level detection relay KJ.
Preferably, the alternating current commercial power is further connected with an air switch QFB1 at the power supply input end.
Preferably, the switching power supply WY outputs +24V and-24V dc voltages through a positive terminal V + and a negative terminal V-, respectively.
The utility model has the advantages that:
the utility model discloses an elevator well water level control system can have under the condition of ponding in the elevator well, and automatic start drainage system transmits corresponding signal to elevator control system simultaneously, stops the elevator, ensures elevator and passenger personnel's safety, waits water level recovery normal back, resumes the elevator and uses.
Drawings
The invention will be further described with reference to the following drawings and examples:
fig. 1 is the structural schematic diagram of the elevator shaft water level control system of the utility model.
Detailed Description
As shown in fig. 1, the water level control system for the elevator shaft of the present invention includes a water level detection head M, a switching power supply WY, a water level detection relay KJ, a water pump control contactor KM, and a water pump; wherein:
the water level detection head M is distributed with mutually insulated water level lower limit terminals M1 and M2 and water level upper limit terminals M3 and M4;
the switch power supply WY and the water pump are powered by 220V alternating current mains supply, and the switch power supply WY respectively outputs + 24V-24V direct current voltage through a positive terminal V + and a negative terminal V-;
the water level detection relay KJ comprises a relay coil and normally open contacts KJ-1 and KJ-2;
the water pump control contactor KM comprises a contactor coil and normally open contacts KM-1, KM-2 and KM-3;
one end of a relay coil of the water level detection relay KJ is connected with a positive terminal V + of the switching power supply WY, the other end of the relay coil is connected with a water level upper limit terminal M4, and the water level upper limit terminal M4 is respectively connected with a water level upper limit terminal M3 and a water level lower limit terminal M2 through a normally open contact KJ-1; the water level lower limit terminal M1 is directly connected with the negative terminal V-of the switching power supply WY;
a contactor coil of the water pump control contactor KM and a normally open contact KJ-2 of a water level detection relay KJ are connected in series between L, N lines of alternating current mains supply; normally open contacts KM-1 and KM-2 of the water pump control contactor KM are respectively connected in series with two alternating current power supply lines of the water pump, and a normally open contact KM-3 is connected with a monitoring point of an elevator control system.
The utility model discloses a concrete working process as follows.
The water level detection head M and the water pump are installed in a well pit. When the water level reaches the lower water level limit of the water level detection head, the lower water level limit terminals M1 and M2 are turned on, but the upper water level limit of the water level detection head is not turned on, so the water level detection relay KJ does not operate.
When the water level continues to rise to the upper water level limit, the upper water level limit terminals M3 and M4 are conducted, at the moment, a relay coil of the water level detection relay KJ is electrified, normally open contacts KJ-1 and KJ-2 are closed, a contactor coil of the linkage water pump control contactor KM is also electrified, a normally open contact KM-3 is closed to send a ladder stop signal to the elevator, the normally open contacts KM-1 and KM-2 are closed, the water pump is controlled to start working, water is drained outwards, and the water level begins to fall.
When the water level is reduced to a position between the upper water level limit and the lower water level limit, although the upper water level limit terminals M3 and M4 are disconnected, the contact KJ-1 of the water level detection relay KJ is closed to realize self-locking, so that the water level detection relay KJ, the water pump control contactor KM and the water pump still act.
When the water level continues to fall below the lower limit of the water level, the lower limit terminals M1 and M2 of the water level detection head are disconnected, the relay coil of the water level detection relay KJ is powered down, the normally open contacts KJ-1 and KJ-2 of the relay coil are disconnected, the contactor coil of the water pump control contactor KM is powered down, the normally open contacts KM-1 and KM-2 of the contactor coil are disconnected, the water pump stops drainage work, the normally open contact KM-3 is disconnected, and the elevator returns to normal work.
As shown in fig. 1, the contactor coil of the water pump control contactor KM is also connected in series with an emergency stop switch ST. The water pump can be stopped at any time by the emergency stop switch ST in the whole process to deal with some emergency situations.
And a manual switch NOE is also connected in parallel to the normally open contact KJ-2 of the water level detection relay KJ, and the water level detection relay KJ can be switched into a manual mode through the manual switch NOE to control the water pump to work.
The alternating current commercial power is also connected with an air switch QFB1 at the power supply input end, and when faults such as short circuit, serious overload, undervoltage and the like occur to the water level control system of the elevator shaft, the power supply of the alternating current commercial power to the system can be cut off, so that protection is formed.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All modifications made according to the spirit of the main technical scheme of the present invention shall be covered within the protection scope of the present invention.
Claims (6)
1. The water level control system for the elevator hoistway is characterized by comprising a water level detection head M, a switching power supply WY, a water level detection relay KJ, a water pump control contactor KM and a water pump; wherein:
the water level detection head M is distributed with mutually insulated water level lower limit terminals M1 and M2 and water level upper limit terminals M3 and M4;
the switch power supply WY and the water pump are powered by alternating current commercial power, and the switch power supply WY outputs direct current through a positive terminal V + and a negative terminal V-;
the water level detection relay KJ comprises a relay coil and normally open contacts KJ-1 and KJ-2;
the water pump control contactor KM comprises a contactor coil and normally open contacts KM-1 and KM-2;
one end of a relay coil of the water level detection relay KJ is connected with a positive terminal V + of the switching power supply WY, the other end of the relay coil is connected with a water level upper limit terminal M4, and the water level upper limit terminal M4 is respectively connected with a water level upper limit terminal M3 and a water level lower limit terminal M2 through a normally open contact KJ-1; the water level lower limit terminal M1 is directly connected with the negative terminal V-of the switching power supply WY;
a contactor coil of the water pump control contactor KM and a normally open contact KJ-2 of a water level detection relay KJ are connected in series between L, N lines of alternating current mains supply; normally open contacts KM-1 and KM-2 of the water pump control contactor KM are respectively connected in series with two alternating current power supply lines of the water pump.
2. The system for controlling the water level in the elevator hoistway according to claim 1, wherein the water pump control contactor KM further comprises a normally open contact KM-3, the normally open contact KM-3 is connected with a monitoring point of the elevator control system, and the monitoring point sends a stop signal to the elevator when the normally open contact KM-3 is closed.
3. The hoistway water level control system of claim 1, wherein the contactor coil of the water pump control contactor KM is further connected in series with an emergency stop switch ST.
4. The system for controlling the water level in the elevator shaft according to claim 1, wherein a manual switch NOE is connected in parallel to a normally open contact KJ-2 of the water level detection relay KJ.
5. The elevator hoistway water level control system of claim 1, wherein an air switch QFB1 is further connected to the ac mains at a power supply input.
6. The hoistway water level control system of claim 1, wherein the switching power supply WY outputs dc voltages of +24V, -24V through a positive terminal V + and a negative terminal V-, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120926786.5U CN214623424U (en) | 2021-04-30 | 2021-04-30 | Water level control system for elevator shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120926786.5U CN214623424U (en) | 2021-04-30 | 2021-04-30 | Water level control system for elevator shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214623424U true CN214623424U (en) | 2021-11-05 |
Family
ID=78406404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120926786.5U Active CN214623424U (en) | 2021-04-30 | 2021-04-30 | Water level control system for elevator shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214623424U (en) |
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2021
- 2021-04-30 CN CN202120926786.5U patent/CN214623424U/en active Active
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