JPS6117051Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gate device that can raise and lower a gate using a wire rope from an opening/closing device.

Conventionally, in such a gate device, a pulley is rotatably attached to a pulley box provided at the upper end of the gate, and a wire rope is wound around the pulley. By the way, a gate opening/closing device that is always kept in a closed state has very few opportunities to operate, and is not preferred in terms of maintenance. In other words, when the gate is operated for maintenance and inspection of the switchgear, the gate also moves up and down (opens and closes), resulting in an unexpected release of water, so currently unnecessary operations are not carried out. It is.

Therefore, the present invention proposes a gate device that can operate the opening/closing device while keeping the gate closed, and can always maintain the opening/closing device in the best condition. I will explain.

1 is a gate and above it is a pair of pulley boxes 2 on the left and right.
is installed. Reference numeral 3 denotes a pulley disposed inside the pulley box 2, and its pulley shaft 4 fits into a slit 5 formed in the gear box 2 and having an appropriate length in the vertical direction, so that the pulley 3 is positioned within a certain range relative to the pulley box 2. It is configured so that it can be raised and lowered within H. Reference numeral 6 denotes an opening/closing device, which includes a motor 7, a reducer 8 interlocked with the motor 7, a drum 10 interlocked with the reducer 8 via a gear mechanism 9, one end of which is wound around the drum 10, and the other end of which is wound around the drum 10. It consists of a wire rope 12 fixed at 11, and this wire rope 12 is wound around the pulley 3.

According to the gate device having the above configuration, when the pulley shaft 4 is at the lowest end point A of the slit 5 as shown in the figure, if the opening/closing device 6 is operated to wind up, the pulley shaft 4 reaches the highest end point B of the slit 5. During this period, the pulley 3 will move upward independently of the gate 1.
When the opening/closing device 6 is lowered, the pulley shaft 4 located at the uppermost point B moves down within the slit 5, and the pulley 3 moves down independently of the gate 1. In this way, the pulley 3 moves up and down within a certain range H, independently of the gate 1. Such operation plays an effective role in lubricating the reducer 8, motor 7, etc. in the opening/closing device 6 and maintaining performance thereof. Note that the hoisting operation of the gate 1 is possible by hoisting the pulley shaft 4 to the uppermost end point B and then performing the hoisting operation further. By installing a limit switch at the top end point B or installing a load detection mechanism at the rope end, that is, at the fixed part 11, it is possible to check whether the wire rope 12 is stretched to the left or right, and the gate 1 is always horizontal. Can go up and down.

According to the present invention described above, a pulley formed by winding a wire rope can be raised and lowered within a certain range regardless of the gate, and therefore the opening/closing device can be moved freely within the above-mentioned certain range. This makes it possible to maintain lubrication and performance within the switchgear, and to maintain the best condition at all times.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an explanatory diagram showing a state in which a wire rope is wound, and FIG. 2 is a partially cutaway front view of the gate side. 1...Gate, 2...Pulley box, 3...Pulley, 4
...Pulley shaft, 5...Slit, 6...Switching device,
7...Motor, 8...Reducer, 9...Gear mechanism,
10...drum, 11...fixed, 12...wire rope, H...certain range.

Claims (1)

[Scope of utility model registration request] A gate device characterized in that a pulley is attached to a pulley box on the gate so that it can be raised and lowered within a certain range, and a wire rope from the opening/closing device side is wound around the pulley.