JP2640965B2 - Gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a gate installed in a waterway or the like, and by providing a simulated buoyancy imparting section, an automatic device can be properly installed when a float rises to a predetermined water level. It is designed to make it easy to check whether it works.

(Background of the Invention and Problems to be Solved by the Invention) As a gate that opens and closes a water channel and the like, when the water level rises and the float rises to a predetermined water level, the buoyancy causes a one-way clutch such as a band brake or a ratchet to be used. There is known an automatic device that operates by operating a door body that opens and closes a water channel by overturning.

By the way, in this type of gate, the automatic device operates even if the float floats up to the predetermined water level due to manufacturing errors during manufacturing, assembly errors during construction at the site, or rust generated over a long period after manufacturing. Therefore, the door may not operate. Therefore, this type of gate needs to be checked from time to time if the automatic equipment operates properly if the float rises to a predetermined water level. Such an inspection may be performed by artificially pouring water into the float chamber and floating the float to a predetermined water level. However, performing such an inspection on site is extremely troublesome.

Therefore, an object of the present invention is to provide a device that can easily check whether or not an automatic device operates correctly when a float rises to a predetermined water level.

(Means for Solving the Problems) For this purpose, the present invention provides a door 1 for opening and closing a water passage, a float 6 for detecting a water level, and a float 6 for detecting the water level when the float 6 rises to a predetermined water level. In a gate provided with an automatic device 5 that operates by buoyancy and turns over the door body, for example, a simulated buoyancy imparting section 10 that applies the same acting force as the buoyancy of the float 6 to the automatic device 5 is provided. And the acting force of the simulated buoyancy imparting section 10 is
Can be freely added or not applied.

(Operation and Effect) In the above configuration, the operation force of the simulated buoyancy applying section 10 is not always applied to the automatic device 5. When the water level rises and the float 6 rises to the predetermined water level, when checking whether or not the automatic device 5 operates correctly, the acting force of the simulated buoyancy applying unit 10 may be applied to the automatic device 5. As described above, according to this device, it is possible to check whether or not the automatic device 5 operates correctly, very easily and easily, without pouring water into the float chamber.

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a door that opens and closes a water passage, and is rotatably installed on a floor by a hinge portion 2. Reference numeral 3 denotes a drum on which the wire 4 for winding the door 1 is wound, and reference numeral 5 denotes an automatic device including a band brake. The automatic device 5 normally prevents the drum 3 from rotating in the direction in which the door body falls, but when this is activated, the drum 3 is in a free state, and the door body 1 falls due to its own weight or drainage pressure. Since the drum 3 and the automatic device 5 are well-known devices, they are simply illustrated. In addition to band brakes, one-way clutches composed of ratchets and the like are widely used as automatic devices. Reference numeral 6 denotes a float for detecting a water level, which is connected to the automatic device 5 via a connecting rod 5a. When the water level rises and the float 6 rises to a predetermined water level, the connecting rod 5a rotates upward by its buoyancy. (See the chain line in FIG. 1), the band of the brake band is loosened and the automatic
Is actuated, the rotation prevention state of the drum 3 is released, and the door 1
Falls on the floor. 8 is a float chamber.

Reference numeral 10 denotes a simulated buoyancy imparting portion provided above the float 6, and includes a lever 13 rotatably supported by a pin 12 on a stopper 11, and a spring member 14 for connecting the lever 13 to the connecting rod 7.
Etc. 15 is a stopper for the lever 13, 16 is a storage box, and 17 is an opening / closing lid. This simulated buoyancy imparting section 10
The lever 13 is always in a horizontal position, and the spring force of the spring member 14 is not applied to the connecting rod 5a. However, when the lever 13 is rotated upward, the spring force of the spring member 14 causes the same force as the buoyancy of the float 6. The magnitude of the spring force is set so that the force is applied to the connecting rod 5a.

This device is configured as described above, and the lever 13
Is in the horizontal position, and the spring force of the spring member 14 does not act on the connecting rod 5a. In this state, when the water level of the water channel rises and the float 6 rises to a predetermined water level, the connecting rod 5a rotates upward, the automatic device 5 operates, and the door 1 falls on the floor.

When it is desired to check whether or not the automatic device 5 operates properly and the door 1 falls down when the float 6 rises to a predetermined water level, open the opening / closing lid 17 and put a hand in the box 16 and move the lever 13. Is turned upward. Then spring material
14 is extended, and its spring force acts on the connecting rod 5a as the same acting force as the buoyancy of the float 6, so that the automatic device 5
It is only necessary to check whether the door body 1 is overturned correctly. As described above, according to the present apparatus, whether or not the automatic device 5 operates by the buoyancy of the float 6 can be easily checked at any time.

(Example 2) In FIGS. 2 (a) and 2 (b), this simulated buoyancy imparting section was used.
20 includes a weight 21, a pulley 22, and a string 23, and one end of the string 23 is fixed to the connecting rod 5a by a locking member 24. 25 is weight
There are 21 storage stands. Normally, the weight 21 is stored in the storage table 25, and its weight does not act on the connecting rod 5a. When performing the above inspection, the weight 21 may be removed from the storage table 25, and the weight may be applied to the connecting rod 5a (see a chain line in FIG. 2). Of course, also in this case, the weight of the weight 21 is set to a size such that the same acting force as the buoyancy of the float 6 acts on the connecting rod 5a.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is a side view, and FIGS. 2 (a) and 2 (b) are a side view and a partial front view of another embodiment. 1 ... door body 5 ... automatic device 6 ... float 10, 20 ... simulated buoyancy imparting part

Claims (1)

(57) [Claims] A door for opening and closing a water passage, a float for detecting a water level, and an automatic device for operating the door by operating by the buoyancy of the float when the float rises to a predetermined water level. In the gate, a simulated buoyancy imparting portion for imparting the same acting force as the buoyancy of the float to the automatic device is provided, and the acting force of the simulated buoyancy imparting portion is imparted to the automatic device and can be freely imparted. And the gate.