JPH04129979A - Operation managing device for hydraulic elevator - Google Patents

Abstract

PURPOSE:To lower down a riding cage without generating unevenness of a speed and a distance of down-operation at the time of testing operation of an emergency stop device by outputting a control signal for interruptedly actuating a riding cage by a fixed pattern when an operation command switch is closed. CONSTITUTION:In the case of testing operation of an emergency stop device 13, connectors 35, 36 of a signal output device 4 are respectively connected to connectors 22, 23, and the signal output device 4 is additionally provided in an operation panel in a riding cage. Next in a condition that an operation command switch 5a is closed, when an actuating switch 32 of the signal output device 4 is closed, a flip flop circuit 33 is actuated by an actuating battery 31 to repeat opening/closing action interruptedly by a fixed pattern, in a contact 34, and a control signal of interruptedly actuating the riding cage is output through the connectors 36, 23. Here, a circuit X51 is placed in an on-condition by closing action of the contact 34 to start down-operation of the riding cage and in an off-condition by opening the contact 34 to stop the riding cage.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hydraulic elevator operating device for operating a car, and in particular, to a device for operating a hydraulic elevator used for testing the operation of an emergency stop device installed in a car. The present invention relates to a hydraulic elevator operation device suitable for.

[Conventional technology]

-i In a hydraulic elevator, a plunger provided in the cylinder moves up and down as pressure oil flows into or out of the cylinder.
This vertical movement of the plunger is transmitted to the car via the rope, and as a result, the car moves up and down in the hoistway along the guide rail. In addition, in such hydraulic elevators, if an abnormal situation occurs such as the rope loosening when the car is going up or down, the car will fall suddenly in the hoistway, so it is important to take care to remove the car in such an emergency. The car is provided with an emergency stop device that is fixed to the guide rail and stops the car. In order to ensure safe operation of the car, it is necessary to periodically test whether the above-mentioned emergency stop device operates normally.

Conventionally, when testing the operation of such an emergency stop device, another worker inside the car would intermittently press the lowering operation button at the direction of a worker who had entered the bit at the bottom of the hoistway. By pressing the bit, the ferrule is lowered little by little, and the ferrule is brought into contact with a support member made of a jack, square timber, etc. arranged on the bit floor. Next, when the jack plunger is raised while the car is supported by the support member, the car floats up and the rope in item 1 relaxes, thereby activating the emergency stop device. Therefore, the workers in the pit operate the jack in the opposite direction, that is, lower the jack plunger, and then judge whether the emergency stop device is operating normally or not based on the descending condition of the car at this time. There is.

[Problem to be solved by the invention]

By the way, in the above-mentioned conventional technology, when a worker in the car intermittently presses the lower house operation button during an operation test of the emergency stop device, this pressing operation is repeated in a fixed pattern. As a result, the lowering speed and distance of the carriage vary, and as a result, the operator supporting the support member in the bit cannot predict the lowering speed or distance, and sometimes the carriage is lowered. There is a problem in that the car cannot be safely and reliably brought into contact with the support member because the support member may suddenly hit the support member or the support member may tilt diagonally due to the impact.

The present invention has been made in view of the actual situation of the prior art, and its purpose is to lower the riding board without causing variations in the descending speed or descending distance during the operation test of the emergency stop device. The object of the present invention is to provide a hydraulic elevator operation device that can operate and operate a hydraulic elevator.

[Failure to solve the problem]

In order to achieve this object, the present invention provides an operation control device for a hydraulic elevator, which includes an operation command switch that outputs an operation command for raising and lowering a car, and which operates a car when the operation command switch is turned on. When you are
- The configuration includes a signal output device that outputs a control signal that causes the accumulator to operate intermittently in a fixed pattern.

[Effect]

Since the present invention is constructed as described above, when the operation test for the emergency stop device is performed, when the lowering operation command switch is turned on, the lowering operation command for the car is output, and the signal output device is used to stop the car from operating. A control signal that operates intermittently in a fixed pattern is output, and the pedal is intermittently operated downward in response to this control signal. This allows the car to be lowered without causing variations in the lowering speed or lowering distance.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a hydraulic elevator operating device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an embodiment of the operating device for a hydraulic elevator according to the present invention, and FIG. 2 is an electric circuit diagram of the operating device shown in FIG.

The operation device 2 for the car 1 of this embodiment shown in FIG.
It consists of a driver's panel 3 installed inside the car 1, a signal output device 4 attached to the driver's panel 3, and the like. The driving panel 3 shown in ``= has destination floor registration buttons 5.6.7 for the 1st floor, 2nd floor, and 3rd floor, respectively, and when the car 1 is operating at low speed, the 1st floor registration buttons 5.6.7 The destination floor registration button 5 for the third floor is switched for low-speed descent, and the destination floor registration button 7 for the third floor is switched for low-speed ascent.

A hydraulic elevator equipped with such an operating device 2 is
As shown in FIG. 1, a rope 12 suspends the car 1 in the hoistway 10 via a spring 11, and an emergency stop device 13 installed on the car 1 to stop the car 1 in an emergency. We are prepared. When testing the operation of the emergency stop device 13, a support member 15 for supporting the car 1 is provided within the bit 14 at the bottom of the hoistway 10.

The above-mentioned driving panel 3 has the above-mentioned destination floor registration buttons 5 to 7, and as shown in FIG. 1st floor operation command switch 5a that outputs to the circuit A main body side connector 23 is provided on the main body side of the main body and the first floor connector 22 can be attached and detached.
A third floor operation command switch 7a outputs an operation command for raising and lowering the car 1 to the circuit X53 in response to the operation of the destination floor registration button 7, and a lamp 24 that lights up in response to the operation of the destination floor registration button 7. These switches 7a and lamps 24
The main body side connector 2G is provided on the main body side of the operation panel 3 and is detachable from the third floor connector 25. Please note that illustrations have been omitted.
The floors are structured in the same way.

As shown in FIG. 2, the signal output device 4 attached to the operation panel 3 includes an operating power source 31 such as a battery, an operating switch 32 connected to the operating power source 31, and an operating switch 32 connected to the operating power source 31. a flip-flop circuit 33 that is activated when the flip-flop circuit 33 is turned on; a contact 34 that intermittently repeats opening and closing operations in a certain pattern due to the operation of this flip-flop circuit 33;
and a pair of connectors 35 and 36 respectively connected to the main body side connector 23. When the operation command switch 5a for the first floor is turned on, the
It is designed to output a control signal that operates intermittently. This signal output device jib.

4 from the operation panel 3, after removing the above-mentioned pair of connectors 35 and 36 from the first floor connector 22 and the main body side connector 23, remove these first floor connectors 2.
2 and the main body side connector 23 are connected to each other.

In this embodiment, when performing an operation test of the emergency stop device 13, after removing the first floor connector 22 from the main body side connector 23, the connectors 35 and 36 of the signal output device 4 are connected to these connectors 22 and 23. are connected to each other, and a signal output device 4 is attached to the driving panel 3 in the car 1. Then, the support member 15 is installed in the pit 14, and when the operator in the car 1 presses the destination floor registration button 5 for the first floor, the operation command switch 5a is turned on, and the car 1 descends at a low speed.

Next, when the operation switch 32 of the signal output device 4 is turned on while the operation command switch 5a is turned on,
The operating battery 31 operates the flip-flop circuit 33, and the contacts 34 repeatedly open and close intermittently in a fixed pattern, and a control signal for intermittently operating the car 1 is outputted via the connector 36.23. Ru. At this time, the circuit X51 is turned on by the closing operation of the contact 34, and the car 1 starts to descend.Then, the opening of the contact 34 causes the circuit X51 to go into the 017F state, and the car 1 stops. The car 1 is intermittently operated downward in a fixed pattern according to the control signal.

Next, the worker who supports the support member 15 in the pit 14 predicts the descending speed and distance and gives driving instructions to the operator inside the car 1 to place the support member 15 in the car 1. Let them come into contact with you. Then, when the operator inside the car 1 releases his hand from the first floor destination floor registration &+15, the output of the driving command from the driving command switch 5a is canceled and the car 1 stops. Next, when a jack plunger (not shown) is raised, the stopped car 1 floats up and the rope 12 is relaxed, so that the emergency stop device 13 is activated. Next, the worker in the pit 14 operates the jack in the opposite direction, that is, lowers the jack plunger, and determines whether or not the operation of the emergency stop device is normal based on the descending condition of the car 1 at this time. It has become.

In the embodiment configured in this way, the lowering operation of the car 1 can be repeatedly performed in a fixed pattern, so that the worker who supports the support member 15 in the pit 14 can control the lowering speed and distance of the car 1. By predicting this, an appropriate driving instruction can be issued to the operator inside the car 1, and as a result, the car 1 can be brought into contact with the support member 15 safely and reliably.

In this embodiment, the signal output device 4 is attached to the driving panel 3 in the car 1, and the signal output device 4 is operated in the car 1, but the present invention is not limited to this. It is also possible to operate the signal output device 4 within the pit 14 by arranging the signal output device 4 within the pit 14 and providing a connection cord between the signal output device 4 and the driving panel 3.

〔Effect of the invention〕

Since the present invention is configured as described above, the car can be lowered without causing any variation in the descending speed or the descending distance during the operation test of the emergency stop device. While predicting the descending speed and distance, the car can be brought into contact with the support member safely and reliably, which has the effect of improving the safety and work efficiency of the emergency stop device operation test.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the operating device for a hydraulic elevator according to the present invention, and FIG. 2 is an electric circuit diagram of the operating device shown in FIG. ■・・・Car, 2・・・Driving operation device,
3... Operation panel, 4... Signal output device,
5-7... Destination floor registration button, 5a, 7a...
...Operation command switch, 2223...Connector, 31...Power supply for operation, 32...Switch for operation, 33...Flip-flop circuit,
34...Contact, 35.36...Connector. Agent: Patent attorney Kenjibu Take (1 other person) ■ ■

Claims (1)

[Claims] (1) In a hydraulic elevator operating device that has an operation command switch that outputs an operation command to raise or lower a car and operates the car, when the operation command switch is turned on, the car is 1. A hydraulic elevator operation device, characterized in that it is provided with a signal output device that outputs a control signal for intermittently operating the hydraulic elevator in a fixed pattern.