JPH0333775Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a portable lifting device for water control gates installed in waterways, and is configured to lift the door by the power of a power unit.

(Background of the idea) Various water gates are installed in waterways such as rivers and agricultural waterways to raise the water level. Water control gates installed in this type of water gate include elevating and lowering type gates and revolving type gates. Conventionally, raising the water control door body was generally carried out by manually operating the operating handle, which required a great deal of labor, and there were also problems such as the inability to quickly pull up the gate body. It was hot.

(Summary of the invention) This invention was made in view of the above circumstances, and the invention uses the power of a relatively small power unit such as a small engine to make it possible to easily pull up the door body. The primary objective is to provide a simple portable lifting machine. A second object of the present invention is to provide a portable lifting device that can handle the height of the rotating shaft for lifting the door body.
For this purpose, the present invention constitutes a portable lifting machine from a power section, a deceleration section connected to the power section, and an upright grip section, and an accelerator operating body of the power section is attached to the grip section. In addition, an output shaft that is detachably connected to the rotary shaft for lifting the door body is connected to the speed reduction section, and the output shaft is provided so as to be movable up and down with respect to the grip section. With this configuration, the door body can be easily pulled up while holding the grip and operating the accelerator operating body, and the height of the output shaft can be adjusted to correspond to the height of the rotary shaft for lifting the door body. By adjusting the height, the output shaft can be connected to the shaft.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Figure 1 shows a portable water control door lifting machine 1 according to the present invention, in which 2 is a small engine as a power unit, 3 is a gasoline tank, 4 is a starting lever, and 5 is a centrifugal lifter. It's clutch. Reference numeral 6 denotes a long tube-shaped rotation transmitting portion that projects directly forward from the engine 2, and a rotary shaft 7 connected to the centrifugal clutch 5 is housed inside the rotation transmitting portion.
Reference numeral 8 denotes a speed reduction section connected to the engine 2 via the rotation transmission section 6, and is comprised of a box-shaped box 9 and reduction gears such as worm gears 10 and 11 housed within the box 9. Reference numerals 12 and 13 are output shafts connected to the reduction gear unit 8, which protrude from both sides of the box 9, and connecting sockets 14 and 15 are attached to the tips thereof, respectively.
The sockets 14, 15 can be freely replaced depending on the size of a rotating shaft for lifting the door body (described later) into which they are fitted.

Reference numeral 16 denotes a long tubular grip part erected on the rotation transmitting part 6, and a press-type accelerator operating body 17 of the engine 2 is mounted on the upper part of the grip part 16. 18
is a cord whose one end is connected to the accelerator operating body 17 and the other end is connected to an on-off valve (not shown) inside the engine 2. When the accelerator operating body 17 is pressed, the engine 2 is driven and the centrifugal clutch 5 The rotation is transmitted to the deceleration section 8. Further, by adjusting the pressing strength of the accelerator operating body 17, the output of the engine 2 can be changed. 2
Reference numeral 6 denotes a mounting body attached to approximately the center of the rotation transmitting unit 6, and the grip portion 16 is attached to this mounting body 2.
6 so that it can be moved up and down. 27 is a fixing screw body (see also FIG. 3), and when this screw body 27 is loosened, the rotation transmitting part 6 can slide along the grip part 16, and therefore protrudes from the speed reducing part 8. The output shafts 12 and 13 are movable up and down relative to the grip portion 16. Further, by tightening this screw body 27, the rotation transmitting section 6 is fixed to the grip section 16.

For ease of handling and carrying this lifting machine 1, the grip part 16 is installed at approximately the center of gravity between the engine 2 and the reduction part 8, and the weight W1 on the engine 2 side is adjusted around the grip part 16. The weight W2 on the side of the speed reducer 8 is approximately equal. FIG. 2 shows how the rotary door body 19 is pulled up by the pulling machine 1, in which 20 is a sheave, 21 is a drum, and 22
23 is a pulley, 23 is a lifting wire, and 24 is a rotating shaft for lifting the door body. Although this embodiment has been described with reference to the case of lifting the revolving door body 19, the present lifting machine 1 can also be applied as a lifting machine for other types of door bodies, such as an elevating type door body. It is.

This pulling machine 1 consists of the above-mentioned configuration,
To pull up the door body 19 that has fallen onto the riverbed 25, the socket 14 is fitted into the rotating shaft 24, the upper part of the grip part 16 is held in the hand, and the accelerator operating body 17 is pressed. Then, the engine 2 rotates, the centrifugal clutch 5 is engaged, the speed is reduced in the speed reducer 8, and the output shaft 12 begins to rotate slowly.
Then, the rotating shaft 24 rotates and the door body 19 is slowly pulled up. Although the engine 2 is small in size, it is greatly decelerated in the deceleration section 8, so the rotational force of the output shaft 12 is extremely large, and the door body 19 can be pulled up sufficiently. Further, by adjusting the pressing strength of the accelerator operating body 17, the rotational force of the output shaft 12 can be freely adjusted.

By the way, when the output shaft 12 rotates in the direction of the solid line arrow in FIG. 1, the pulling machine 1 rotates in the direction of the arrow a and tries to float due to the reaction force acting on the output shaft 12 from the rotating shaft 24. Conversely, when the output shaft 12 rotates in the direction of the dashed arrow, it similarly rotates in the direction of arrow b and attempts to float. However, such floating movement can be easily prevented by pressing down the grip part 16 with the hand holding the grip part 16. This can also be prevented by placing your foot on the top of the box 9 and pressing it down. When the lifting operation of the door body 19 is completed, the socket 14 can be separated from the rotating shaft 24.

Incidentally, the height of the shaft 24 varies, and therefore, it is necessary to adjust the height of the sockets 14 and 15 fitted therein in accordance with the height of the shaft 24. In such a case, the sockets 14, 15 can be easily set at the optimum height by loosening the screw body 27 and moving the speed reducer 8 up and down with respect to the grip part 16 (see the chain line in FIG. 2).

In addition, by providing the output shafts 12 and 13 on both sides of the speed reducer 8 as in this embodiment, the rotary shaft 2
The socket 14 or 15, whichever is easier to use, may be connected to the rotary shaft 24 depending on the installation position of the rotary shaft 24, site conditions, etc. In addition, this lifting machine 1 is carried by holding the grip part 16, and since the grip part 16 is installed upright at the approximate center of gravity with good weight balance between the engine 2 and the reduction part 8, it is extremely easy to carry. It is something.

(Effects of the invention) As explained above, the portable lifting machine 1 for water control doors according to the invention includes a power section 2, a deceleration section 8 connected to the power section 2, and an upright grip section. The output shaft 12, which is provided with
Since the accelerator operation body 17 is arranged and the output shaft 12 is provided so as to be able to move up and down with respect to the grip part 16, the configuration is extremely simple, and the grip part 1
6 and operate the accelerator operating body 17, the door body 19 can be easily pulled up, and the output of the power section 2 can also be easily adjusted. It is possible to easily prevent the lifting machine 1 from floating up unnecessarily due to the reaction force caused by the lifting machine 1 by pressing the grip part 16 downward with the hand holding the grip part 16. Also, output shaft 1
By adjusting the height of the rotary shaft 24 for lifting the door body, it is easy to adjust to the height of the rotating shaft 24, and it is also extremely easy to handle and transport, making it easy to carry and move around the site. While
There are various effects such as being able to perform the predetermined door body lifting work efficiently.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the pulling machine, FIG. 2 is a side view during handling, and FIG. 3 is a partial plan view. 1... Portable lifting machine, 2... Power unit, 8...
...Reduction part, 12, 13... Output shaft, 16... Grip part, 17... Accelerator operating body, 24... Rotating shaft for lifting the door body.

Claims (1)

[Scope of utility model registration request] It comprises a power section, a speed reduction section connected to the power section, and an upright grip section, and an output shaft detachably connected to the rotary shaft for lifting the door body is connected to the speed reduction section; A portable lifting machine for a water control door body, characterized in that an accelerator operating body of the power section is disposed in the grip part, and the output shaft is provided so as to be movable up and down with respect to the grip part.