KR960007267Y1 - Elevator wire rope loose protection device - Google Patents

Abstract

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Description

Wire rope sag prevention device of elevator

1 is a longitudinal sectional view showing a state in which a cage of an elevator is installed in a conventional hoistway

2 is a cross-sectional view taken along the line A-A of FIG.

Figure 3 is a longitudinal cross-sectional view showing the present invention

4 is a cross-sectional view taken along the line B-B of FIG.

5 is an enlarged view of portion C of FIG.

* Explanation of symbols for main parts of the drawings

1: hoistway 2: upper beam

3: shaft 4: wire rope

5: first pulley 6: second pulley

7: 3rd Pulley 8: 4th Pulley

9: support plate 10: first signal sensor

11 second signal sensor 12 spring

The present invention relates to an apparatus for preventing wire rope sag of an elevator, and more particularly, to accurately notify an elevator wire rope repair time, and to prevent sagging of a wire rope.

Conventional elevators, as shown in FIG. 1 and FIG. 2, have a first and second sides on the lower sides of the cage 15 supported by the guide rails 25 provided on the rail bracket 24 in the hoistway 1, respectively. Cage pulleys 21 and 22 are installed, and a cylinder 23 is installed on a jack die 16 on one side of the cage 15 so that the first and second cylinder pulleys 20 and 18 are disposed on the upper end. The jack die 16 is provided with a rope fixing member 17 for fixing one end of the third cylinder pulley 19 and the wire rope 4, the upper beam (2a) on the hoistway (1) One side is configured to be provided with a rope fixing member 26 for fixing the other end of the wire rope (4).

Therefore, the cage 15 of the elevator is the second cylinder pulley 18, the third cylinder pulley 19, the first cylinder pulley 20, the first starting point with the rope fixing member 17 installed in the jack die 16 The two cage pulleys 22, the first cage pulley 21, and the rope fixing member 26 on one side of the upper beam 2a are started by the wire rope 4, and when the cylinder 23 operates 10 mm, the cage 15 starts 20 mm.

However, if the conventional elevator is not operated for a long time, the wire rope 4 may sag, causing interference with other devices in the hoistway 1, which may cause an accident and cause the wire rope 4 to derail from the pulleys. In addition to the high risk of safety accidents, the wire rope 4 was forced to repair the wire rope 4 after an abnormal operation such as floor level error or stoppage occurred. .

In addition, when the wire rope 4 is increased, there is no other way, so it has to be cut out. In this case, the repair time of the elevator is too much, resulting in inconvenience to the user.

The present invention is to solve the above problems, the present invention can not only accurately know the time to repair the wire rope of the elevator, but also can provide convenience to the user by preventing the deflection of the wire rope as a simple structure. It is an object of the present invention to provide an elevator wire rope sag prevention device that can prevent safety accidents.

In order to achieve the above object, the present invention is installed on the upper beam of the hoistway and supported by the shaft, and the first and second pulleys for preventing the deflection of the wire rope, and the third and fourth pulleys for guiding the movement of the wire rope. And, wire rope deflection prevention device of the elevator consisting of a fixing piece for moving and fixing the rope fixing member during repair of the wire rope. Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 3 to 5 as follows.

FIG. 3 is a longitudinal sectional view showing the present invention, and FIG. 4 is a sectional view taken along the line BB of FIG. 3, and FIG. 5 is an enlarged part C of FIG. First and second pulleys 5 and 6 are supported by the shaft 3 to prevent sagging of the wire rope 4 and upper beams on both sides of the first and second pulleys 5 and 6 are provided. 2) Third and fourth pulleys 7 and 8 for guiding the movement of the wire rope 4 are provided.

In addition, each of the first and second signal sensors on the support plate 9 and the second pulley 6 on the upper side of the second pulley 6 so as to mutually interfere when the wire rope 4 exceeds the maximum deflection. (10) (11) is attached, the spring 12 is provided on the shaft (3) of the first and second pulleys (5) and (6), and the repair of the wire rope (4) on the other side of the upper beam (2) A plurality of fixing pieces 14 for moving and fixing the sea rope fixing member 13 is installed.

According to the present invention configured as described above with reference to FIGS. 3 to 5, the cage 15 of the elevator has a second starting point of the rope fixing member 17 installed on the jack die 16 of the lower part of the hoistway 1. Cylinder pulley (18), third cylinder pulley (19), first cylinder pulley (20), second, first cage pulley (21) (22), third pulley (7), first, second pulley (5) (6), the fourth pulley (8) and the rope holding member (13) in order to be activated by the wire rope (4).

Then, if the hydraulic pressure of the cylinder 23 is released when the elevator is stopped for a long time, the cylinder 23 and the cage 15 are lowered, and the wire rope 4 is loosened. When the deflection of FIG. 1 is exceeded, the first pulley 5 supported and supported by the shaft 3 on one side of the upper beam 2 and the lower side sags downward, and is attached to the second pulley 6. The second signal sensor 11 is connected to the first signal sensor 10 attached to the support plate 9 on the upper part of the second pulley 6, and at the same time, the buzzer installed in the monitoring panel or the management room sounds, so that the wire rope 4 ) Will inform you that it's time to repair.

Then, when the sound of the buzzer is heard and the wire rope 4 is repaired, the elevator is stopped and the rope fixed to the plurality of fixing pieces 14 installed on the other side of the upper beam 2 without cutting the wire rope 4. Since the fixing member 13 is continuously moved to the fixing piece 14 in the rear compartment whenever necessary, the maintenance work can be completed quickly in a short time without cutting the wire rope 4.

As described above, according to the present invention, the first and second pulleys 5 and 6 supported by the shaft 3 are installed in the hoistway 1 by the upper and lower sides of the upper beam 2, so that the wire rope 4 It is a very useful design to prevent safety accidents because it can prevent sag of a simple structure and can accurately inform.

Claims (3)

First and second pulleys (5) and (6) installed in the upper beam (2) of the hoistway (1) and supported by the shaft (3) to prevent sagging of the wire rope (4), Third and fourth pulleys (7) (8) for guiding movement of the wire rope (4), Elevator wire sagging prevention device, characterized in that consisting of a fixing piece (14) for moving and fixing the rope fixing member (13) during repair of the wire rope (4). According to claim 1, wherein the support plate (9) and the second pulley (6) on the upper portion of the second pulley (6) is connected to each other when the wire rope (4) is interconnected when the maximum deflection Device for preventing wire rope sag of an elevator to which 1 and 2 signal sensors 10 and 11 are attached. The device of claim 1, wherein a spring (12) is provided on a shaft (3) of the first and second pulleys (5).