JP3199876U - Worm gear type reduction gear drive system Small undulation gate for small waterway - Google Patents

Abstract

[PROBLEMS] To solve the problem of flooding in an area where the opening and discharging operations are fast and subjected to torrential rain, reducing the damage of the plate weir operator, reducing human labor during the discharging operation, and semi-automating or automating the equipment. A small undulation gate for small waterways is provided. In response to the requirement of emergency discharge, the operating handle 9 is operated and a slight force opposite to the winding direction is applied to the wire winding drum 6 so that the tension of the pulling wire 4 is relaxed and supported by the bottom hinge 3. By allowing the door body 2 to fall down, it becomes possible to release it for a short time. Moreover, since the force required for lodging depends mainly on the head pressure stored, no labor is required. By adding the brake / self-lock adjuster 8 to the worm gear type speed reducer 7, it is possible to automatically fall down depending on the water head pressure and flowing water energy to the door body 2. Further, by using an electric motor 10 as a power source of the worm gear type speed reducer 7 and adding a push button type opening / closing device, a control device 12 having a door body position detection performance, and a water level / flow velocity detector 13, a continuous automatic undulation operation is performed. Is possible. [Selection] Figure 1

Description

      This invention relates to the structure of a small undulation gate for opening and closing a small waterway.

Conventionally, as shown in FIG. 2, opening and closing of a small water channel has been performed by plate weirs 1a and 1b or a small slide gate. In the small slide gate, the operator stands on the operation table 7 and rotates the operation handle 6 so that the spindle screw 5 supported by the bearing 4 is extended upward, and the door body 3 directly connected to the spindle screw is brought into contact with the door. It rises in the hardware 2 to release the watertight state and perform the discharge operation. However, in the plate weirs 1a and 1b, except for a very small water channel, the operation is always carried out from the downstream side of the water storage position, so the operator always bears the risk of water flow during the extraction.
Even if it is a small slide gate, the discharge operation which requires the door 3 to be raised is restricted by the screw pitch of the spindle screw 5. The screw pitch of the metric trapezoidal screw used in the small slide gate is about 5 mm to 10 mm. Assuming that the spindle screw with a pitch of 10 mm is extended by rotating the operation handle 6, the height of the door body 3 is 0.6 m. In this case, an operation time of 2 minutes is required even for one rotation / 2 seconds. Moreover, the larger the screw pitch, the greater the required operating force for the discharge operation by raising the door body, making it difficult to operate for a short time. In recent years, the rack gear method has been adopted in many cases instead of the spindle screw method with such characteristics, but the closing operation has many advanced switches using the self-weight drop method and can be operated for a short time, The higher the mechanism, the greater the number of handle operation rotations required for raising the door and discharging, and it is difficult to discharge for a short time.

Published by Agricultural and Civil Engineering Business Association, supervised by the Ministry of Agriculture, Forestry and Fisheries, Rural Promotion Bureau, Design Department, Design Section, “Steel Structure Planning Design Technical Guidelines (Sluice Gate Edition)” 2009 "Sluice / Xiamen Gate Design Guidelines (Draft)" issued by the Dam and Weir Facility Technology Association

However, according to the above technology, the open time could not catch up with the sudden increase of waterway level and excessive flow velocity due to torrential rain in a relatively small area, causing local inundation damage, In recent years, there have been cases in which human operators have been lost due to the flow of operators.
This device has problems of inundation damage in areas where opening and discharge operations are fast and subjected to torrential rain, reduction of damage to plate weir operators, reduction of human labor during discharge operations, and semi-automation or automation of equipment. It is a small undulation gate for a small waterway with a worm gear type reduction gear drive system.

In order to solve the above problems, the first idea is to install a worm gear type reduction gear drive type undulation gate having a wire take-up drum in a small water channel, and to let the door body stand up and fall through the traction wire. It is a small undulation gate for small waterways featuring a worm gear type reduction gear drive.
The second device is a small undulation gate for a worm gear type reduction gear drive type small waterway characterized in that remote control is possible by installing a turning pulley for the wire at an appropriate position of the pulling wire.
The third device is a worm gear type decelerator with an appropriate reduction ratio selected for the head pressure of the undulation gate, or a worm gear type decelerator with a brake or self-lock adjustment function, which easily surrenders against excessive head pressure. This is a small undulation gate for a small waterway with a worm gear type reduction gear drive system having the following characteristics. In the fourth device, the worm gear speed reducer is a model with an electric motor, provided with a control circuit, and can be raised and lowered without human labor by a self-detection signal such as a water level, including a push button operation and a raising and lowering operation by a radio signal. It is a small undulating gate for small waterways with a worm gear type speed reducer drive system characterized by its structure. The fifth device is equipped with solar power generation equipment, power storage equipment, electric motors and control devices as the power source for driving the worm gear type reduction gears, and automatically undulates even in areas where it is difficult to secure commercial power sources without human labor. A worm gear type reduction gear drive type small undulation gate for small waterways characterized by a structure that can be operated.

  According to the first device, the second device, and the third device, it is considered that the water level rises due to local heavy rain, etc. It was considered that it could be installed remotely from a location away from the side of the road where the amount of vehicle traffic is large, and inside a darkened waterway. In addition, according to the fourth and fifth devices, when the water level rises in the small water channel or the flow velocity becomes excessive, it automatically falls down, allowing instantaneous discharge operation, and can stand up automatically after the abnormal situation is resolved. It was considered a thing. At the same time, unlike the slide gate, it was considered that the necessary water storage level can be adjusted and the overflow discharge to the downstream is possible in all of the first to fifth devices.

It is an elevation view showing one embodiment of this device. It is an elevation which shows a prior art.

One embodiment of this invention is shown in FIG.
Worm gear type reduction gear drive type undulation gate for small waterway is a buried door 1 using stainless steel, a steel door body 2 having a hinge 3 at the bottom, a pulling wire 4, a turning pulley 5, and wire winding It comprises a drum 6 and a worm gear type speed reducer 7 with a self-lock adjusting mechanism or a brake 8. In the normal standing operation, the operation handle 9 of the worm gear type speed reducer 7 is rotated to wind the wire and pull the door body to stand. The falling and discharging operation is easily and quickly performed by the weight of the door body and the hydraulic load by applying a slight force in the opposite direction to the standing operation of the operation handle. Regardless of whether the operating force applied to the worm gear type speed reducer 7 is human power or the electric motor 10, quick operation is possible with relatively little power.
When using commercial power, the detector can be undulated by operating the door position detector and push button mounted on the control device 12 or by wireless operation, and continuously detects the water level, flow velocity, etc. of the small water channel by the detector 13. And undulate automatically. In the case of the solar power generation system, the power generated by the solar power generation panel 14 is stored in the storage battery 11, the control device 12 is operated, and the operation similar to the performance of the commercial power use product is possible. It does not require labor.

  This small undulation gate for small waterways uses a worm gear type speed reducer 7 for winding the pulling wire 4 and is therefore limited by the ability of the worm gear type speed reducer alone, so that the waterway width is relatively narrow and the water depth is shallow. It is limited to. For example, if a model with a gear ratio of 30: 1 is selected, the sliding gear is limited to small channels with a channel width of approximately 1.5 m or less and a required water storage depth of approximately 1 m or less. Compared to, it is also very effective economically.

  This small undulation gate for small waterways is effective for the redevelopment of the agricultural base where the successor shortage and the aging of workers are progressing. In addition, it is possible to cope with the darkening of agricultural waterways accompanying the widening of the road, and it is considered that it contributes to the maintenance and developmental succession of suburban agriculture and the development of urban infrastructure.

DESCRIPTION OF SYMBOLS 1 Stainless steel door hardware 2 Small undulating gate door body 3 Small undulating gate door body hinge 4 Towing wire 5 Wire turning pulley (sheave) 6 Wire take-up drum 7 Worm gear reduction gear 8 Brake / self-lock adjuster 9 Operation Handle 10 Electric motor 11 Storage battery 12 Control device (including push button switch etc.)
13 Water level / flow velocity detector 14 Solar power generation panel

Claims (5)

    A worm gear type reduction gear drive small undulation gate for a small waterway having a structure in which a worm gear type reduction gear drive having a wire winding drum is used to stand and fall over a wire.     The worm gear type reduction gear drive type small waterway undulation gate is a small waterway undulation gate having a structure that can be remotely operated by a wire turning pulley.     The worm gear type reducer drive type small waterway hoisting gate is excessively large by appropriately selecting the gear ratio of the worm gear type reducer with respect to the restriction of water head pressure or having an appropriate brake or self-lock adjusting device. A small undulation gate for small waterways that has the feature of automatically falling and discharging when water head pressure occurs.     The worm gear type reduction gear drive type small waterway undulation gate can be equipped with an electric motor in the worm gear type reduction gear, and a small water channel that enables a structure that can be tilted and raised by self-detection signals such as push button operation, radio signal operation and water level. For small undulation gate.     The worm gear type reduction gear drive type small waterway small undulation gate has a photovoltaic power generation panel, a power storage facility, an electric motor and a control device as a power source for the worm gear type reduction gear, and has no human power even in areas where commercial power cannot be procured. A small relief gate for small waterways, characterized by a structure that allows standing and lying down.

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