JPH01285566A - hydraulic elevator control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a hydraulic elevator control system, and more particularly to a floor alignment correction system.

[Conventional technology]

When a hydraulic elevator is on standby, the car naturally descends due to heat shrinkage due to the natural drop in the temperature of the oil in the jack and oil leakage from the plunger packing.

It is required by law to install a floor alignment correction device to correct this floor roundness (Ministry of Construction Notification No. 1).
6879 No. 4 No. 3, Explanation of technical standards for elevators and escalators 1984
(See pages 137 and 138 of the annual edition).

The floor alignment correction device is operated by the floor detection device, but the detection distance of the floor detection device is a certain distance determined by the floor alignment speed and the accuracy of the detection device, and the elevator does not operate the floor detection device. If it is within this range, floor leveling operation cannot be performed and a step may remain between the car and the floor level. In order to prevent this,
As in No. 44879, if a device is installed to detect that the floor detection device is in a range where it does not operate, the car is forcibly lowered to the range where the floor detection device is activated, and floor alignment operation is performed. There is.

[Problem to be solved by the invention]

The conventional technology described above has a problem in that the configuration is complicated because it requires an additional device to detect that the floor detection device is in an inoperable range.

An object of the present invention is to solve the above-mentioned problem, and it is possible to easily correct the floor alignment even when the floor roll due to natural descent during elevator waiting is within the range where the floor roll detection device does not operate. An object of the present invention is to provide a hydraulic elevator control device.

[Means to solve the problem]

The above object is achieved by detecting that the elevator has been on standby for a certain period of time and forcibly lowering the car to a range where the floor detection device operates.

[Effect]

Elevator - By detecting a certain period of time regardless of the floor rounding due to natural descent during standby, and forcibly lowering the car to the range where the floor rounding detection device operates, and performing normal floor matching operation. Floor alignment can be performed even in the range where the corner detection device does not operate.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows a circuit diagram of an embodiment of the control device of the present invention, where P and N are elevator power supplies, IU is a call button on the first floor landing, H is an upward call detection relay, and Hs and Hz are its The contact point, la, is the contact point of the floor alignment completion detection switch, which will be described later.
A is the floor alignment completion detection relay, AI is its contact, 2a is the contact of the floor alignment detection switch described later, and B is the floor alignment detection relay.

Bs, Bi are the contacts, U is the rising floor alignment operation relay,
Ul, Uz are the contacts, D is the downward inching operation relay, Dl, I)z, Da are the contacts, $1 is the rising floor adjustment correction device, S2 is the downward inching correction device, loa
is a contact of the stop detection relay, C is a contact of the first floor detection switch, T is a forced descent command timer, and T1 is its contact.

FIG. 2 shows a schematic diagram of a hydraulic elevator according to an embodiment of the present invention, where 1 and 2 are the above-mentioned floor alignment completion detection switch and floor roundness detection switch, respectively, and 3 is a passenger door.

The amount of natural descent of the car while it is waiting is approximately proportional to the time. Therefore, we estimate the time during which the car descends (sinks) and creates a step that would cause a wheelchair to fall or an elderly person to fall even though floor alignment correction has not been performed, and then set the forced descent command timer to use that time. Let it be the set time of T.

The circuit shown in FIG. 1 is for the first floor, and a similar circuit is provided for each floor on which a car runs.

Immediately, floor alignment was carried out for each floor.

Now, when the elevator car arrives at the first floor, the contact C of the first floor detection switch is closed, and when it enters the standby state, the stop detection relay is turned on, and its contact 10a is closed.
The forced descent command timer T starts counting time.

When the aforementioned preset time period comes, the contact Tz closes. Incidentally, the contact Tl of the timer T will not enter after the set time limit. After that, when the 1st floor hall call button IU is pressed, the ascending direction detection relay H is turned on and the contact H1 is activated.

Hz is closed. At this time, if there is a car within the operating range of the round-floor detection switch 2, the closing of its contact 2a turns on the round-floor detection relay B, which closes its contact Bl, so that the raised floor is aligned. Operation relay U turns on, its contact UN closes, and rising floor alignment correction device i!
Elevator in which SL operates and performs rising floor matching operation.
When reaches the floor alignment completion zone, the floor alignment completion detection switch 1 is turned on, its contact 1a is closed, the floor alignment completion detection relay A is turned on, and its contact Al is opened, and the rising floor alignment operation relay U is turned on. turns off, contact U2 opens,
Rising floor adjustment correction device! St stops and floor alignment correction is completed. At this time, contact Bz is open, so
Even if the contact T1 is closed, the downward inching operation relay D does not work.

When the passenger car 3 is in the range where the floor detection switch 2 does not operate, the contact B2 is closed, so when the first floor hall call button IU is pressed, the contact H2 closes as described above, and the lowering occurs. The inching operation relay D is turned on, its contact D2 is closed, and the descending inching correction device iSz is operated, and the zero-riding car 3, which performs the descending operation of the car 3, reaches the operating range of the floor detection switch 2. When the switch 2 is lowered, the switch 2 is activated, and as described above, the floor detection relay B is turned on, the contact B1 is closed, the contact B2 is opened, and the lower inching operation is performed.The lower inching correction device S is turned off.
2-Stop, and the rising floor alignment operation relay beon and the rising floor alignment correction device S1-operate to perform the rising floor alignment operation.

Furthermore, the fact that the forced descent command timer T does not work means that
The difference in level of the car is small, and in this case, the rising floor alignment correction is not performed.

When a passenger gets on board and passenger number 3 leaves the first floor, the first floor detection switch turns off and contact C opens.

The forced descent command timer T is reset.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing one embodiment of the control device of the present invention, and FIG.
The figure is a schematic diagram showing a hydraulic elevator according to an embodiment of the present invention. 1... Floor alignment completion detection switch, 2... Floor round detection switch, 3... Car, IU... 1st floor landing call button, H... Ascending call detection relay, A...・Floor alignment completion detection relay, B...floor round detection relay, U
...Ascending floor alignment operation relay, D...Downward inching operation relay, Sl...Ascending floor alignment correction device, S
t...Descent inching correction device, P, N...Elevator power supply. 10a...Contact of stop detection relay, T...Forced descent command timer, C...Contact of first floor detection switch.

Claims (1)

[Claims] 1. Equipped with a floor rotation detection device and a floor alignment correction device operated by the device, it detects that the car has sunk by a predetermined distance or more when the hall call button is activated, and In a hydraulic elevator control device that raises a car by an amount corresponding to the amount of sinkage, when the car has been on standby for a certain period of time, the car is forcibly lowered to the range where the floor movement detection device operates, and the car is lifted up. A hydraulic elevator control device that performs floor alignment correction.