JPH0338430Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device used to stop a lifting object, particularly a water gate door installed in a river, at a set position.

[Conventional technology and its problems]

Conventionally, as a device for the above purpose,
There are devices described in No.-101933 and Japanese Utility Model Publication No. 53-15948.

The device described in Japanese Utility Model Application Publication No. 55-101933 controls the rotation of the diesel engine by operating the decompression lever of the diesel engine, and can stop the water gate at a set position.

In addition, the device described in Utility Model Publication No. 53-15948 is
The switching clutch can be controlled to stop the sluice gate at a set position.

However, in the device described in Japanese Utility Model Application Publication No. 55-101933, when the decompression lever of the diesel engine is operated, the pressure inside the cylinder of the diesel engine is released, resulting in incomplete combustion of the fuel injected into the cylinder. There is a risk of explosion because incompletely combusted gas is released from inside the cylinder to the outside.

On the other hand, the device described in Utility Model Publication No. 53-15948 is
Because the clutch lever must be operated and the switching clutch must be instantaneously operated, it inevitably causes rapid wear and damage.

[Problem that the invention attempts to solve]

An object of the present invention is to provide an internal combustion engine-driven elevator that can solve the above problems.

[Means for solving problems]

This invention drives an elevator by an internal combustion engine,
This is an internal combustion engine-driven elevator for water gates that uses the drive of the elevator to raise and lower a door lifting rod with a door attached to its lower end. A mechanical internal combustion engine rotation control device is provided to operate and mechanically control a fuel regulator of the internal combustion engine, and the mechanical internal combustion engine rotation control device is extendable and retractable in an axial direction to a fuel lever of the fuel regulator. an operation control rod connected through an elastic body, a male threaded shaft rotating connected to the rotational drive system of the elevator and arranged substantially parallel to the operation control rod, and screwed onto the male threaded shaft. a female screw block which is movable in the axial direction by the rotation of the female screw block;
a metal fitting, a second metal fitting, a horizontal metal fitting disposed above the male screw shaft having a free swinging piece that can be engaged with a stepped portion formed on the first metal fitting, and a horizontal metal fitting for controlling the operation of the male screw shaft. and an engagement mechanism interlocked with the movement of the female screw block in the axial direction to maintain an engaged and disengaged state with the second metal fitting, and the female screw block is moved by the movement of the female screw block. The horizontal bracket is displaced upward to enable the freely swinging piece of the horizontal bracket to be detached from the stepped portion of the first metal fitting, and the engagement mechanism is configured to displace the second metal fitting at the end of driving of the elevator. It is characterized by being able to release the engagement.

〔Example〕

Hereinafter, the present invention will be specifically explained based on embodiments shown in the accompanying drawings. In addition, in the example,
A diesel engine is used as an internal combustion engine.

In FIGS. 1 and 2, reference numeral 1 denotes an elevator disposed on the upper part of a frame 4 having a gate-shaped machine frame shape, and a door lifting rod 2 is attached to the elevator 1 so as to be able to move up and down.

Reference numeral 3 denotes a door body mounted to be able to move up and down within the frame 4, and the upper part of the door body 3 is connected to the lower end of the bar 2 for lifting and lowering the door body.

Further, the door body 3 is at its lowest position, and its lower surface 5 is in contact with the bottom plate 6, as shown in FIG.

Further, in FIG. 3 showing the overall configuration of the elevator 1, 7 is an elevator main body, and a door body lifting rod 2 is attached to the elevator main body 7 in a penetrating state.

Furthermore, numerals 8 and 25 are sprocket wheels attached to both sides of the elevator main body 7, respectively.

Reference numeral 12 denotes a speed reducer, and the speed reducer 12 is connected to the sprocket wheel 8 of the elevator main body 7 via a torque controller 11 and an endless chain 9 attached to one side thereof.

Reference numeral 14 denotes a forward/reverse device for operating the rotational direction of the door lifting rod 2 in the elevator main body 7 via a forward/reverse switching lever 15;
It is connected to the speed reducer 12 via.

20 is a diesel engine, and the diesel engine 20 is equipped with a V-pulley 18 with a centrifugal clutch on one side, and the V-pulley 18 is equipped with a centrifugal clutch.
8 is connected by a V-pulley 19 and a V-belt 17 attached to the forward/reverse device 14.

22 is a fuel regulator attached to the diesel engine 20, and the fuel regulator 22 includes a fuel regulating lever 21.

Further, 24 is a mechanical internal combustion engine rotation control device which is a feature of the present invention, and the rotation control device 24 is as follows:
It is connected to the fuel regulator 22 via a rope 23, and also communicates with the elevator main body 7 via a sprocket wheel 27, an endless chain 26, and a sprocket wheel 25.

Next, the internal structure of the mechanical internal combustion engine rotation control device 24 will be explained in detail with reference to FIGS. 4 to 9.

The protective case has an elongated rectangular box shape and consists of a lower case 24a with an open top and an upper lid 24b that closes the top.

Reference numeral 30 denotes a male threaded shaft that extends longitudinally inside the protective case and is rotatably supported by bearings at both ends. It's stuck.

Further, as shown in FIG. 5, a block rotation prevention rod 53 extends directly below the male screw shaft 30.

Further, reference numeral 31 denotes a female screw block, which is screwed onto the male screw shaft 30 and has its lower portion engaged with a block rotation prevention rod 53.

With this configuration, when the male screw shaft 30 is rotated, the female screw block 31 moves in the axial direction (e, f direction) along the male screw shaft 30.

Further, 28 is a diesel engine operation control rod disposed inside the protective case parallel to the male screw shaft 30, and the operation control rod 28 has one end protruding from one end wall of the lower case 24a. At the same time, the other end is connected to one end of the rope 23 via a tension spring 38.

Also, in Figures 4 and 8, 36, 37
are a first metal fitting and a second metal fitting that are fixed to the middle of the diesel engine operation control rod 28 with an interval, and the first metal fitting 36 has an upper step portion 36a on its upper surface, as shown in FIG. and lower step part 36b
A stepped section is provided.

Reference numeral 35 denotes an inverted T-shaped horizontal bracket that extends in the horizontal direction above the male screw shaft 30 at the center of the protective case. At the same time, the narrow freely swinging piece 35a is mounted on the upper step part 3 of the first metal fitting 36.
6a and the lower step portion 36b.

In addition, in Figures 4, 7, and 9, 2
Reference numeral 9 denotes an emergency stop rod interposed in parallel between the male screw shaft 30 and the diesel engine operation control rod 28, and the emergency stop rod 29 has one end protruding from the end wall of the protective case. , a push-up fitting 47 is attached to the other end via a shaft 48,
The push-up metal fitting 47 is connected via a tension spring 39 to a hook rod 47a fixed to the bottom plate of the protective case.

In addition, as shown in FIG. 4, the push-up metal fitting 47 is
It is located directly below the horizontal bracket 35.

Furthermore, in FIG. 4, reference numeral 33 is a first swinging arm whose central part is rotatably attached to a shaft 42 fixed on the bottom plate on one side of the protective case; tension spring 40
is connected to the end wall of the protective case by
The other end is pivotally supported midway through the emergency stop rod 29 by a shaft 44.

Further, as shown in FIG. 4, 32 is a second swinging arm interposed between the male threaded shaft 30 and the diesel engine operation control rod 28 at the position of the second metal fitting 37. The movable arm 32 is rotatably attached at its center to the upper part of a shaft 41 whose base end is fixed to the bottom plate of the protective case.

The second swing arm 32 can be engaged with the female screw block 31 and the second metal fitting 37 at both ends thereof, respectively.

Further, 45 is a stopper for preventing the second swing arm 32 from rotating in the opposite direction.

Furthermore, 34 is a connecting rod that connects one end to the pivot point of the first swinging arm 33 and the other end to one end of the second swinging arm 32, and the connecting rod 34 is connected to the emergency stop rod 29. Convex portion 5 provided in the center of
0 can be engaged.

Next, control by the engine rotation control device having the above configuration will be explained.

First, as an initial action necessary to raise the water gate, the forward/reverse switching lever 15 is set in the upward direction.

By pulling the diesel engine operation control rod 28, the rope 23 moves in the direction b as shown in FIG. , caught on the lower step part 36b of the first metal fitting 36 (Fig. 6),
The fuel adjustment lever 21 of the fuel adjustment device 22 moves from the stop position to the operation position and is held there.

As the diesel engine 20 operates, the elevator 1 moves, the door lifting rod 2 rises, and the door 3 rises.

In conjunction with the drive of the elevator 1, the male screw shaft 30 inside the rotation control device 24 rotates in the direction c via the sprocket wheel 25, the endless chain 26, and the sprocket wheel 27, thereby causing the female screw to rotate. Block 31 moves in the e direction.

When the female screw block 31 moves in this manner, it is disengaged from the second swing arm 32, so that the force restraining the swing arm 32 is eliminated. For this reason, the first swing arm 3 which was being pulled by the spring 40
3 rotates in the h direction, the connecting rod 34 also moves, and the second swing arm 32 rotates in the j direction and hits the stopper 45 and stops.

While moving in the e direction, the female screw block 31 pushes up the free swinging piece 35a of the horizontal bracket 35 (position A in FIG. 5), and removes the free swinging piece 35a from the lower step portion 36b of the first metal fitting 36. .

When the free swinging piece 35a comes off, the diesel engine operation control rod 28 moves in the direction a, but the second metal fitting 37 collides with the second swing arm 32, and the diesel engine operation control rod 28 stops.

At that time, the spring 38 absorbs the contraction caused by the movement, and the rope 23 does not move in the direction a (FIG. 4).

Second metal fitting 3 colliding with second swing arm 32
7 rotates the first swinging arm 33 in the g direction by the subsequent continuous movement of the female screw block 31 in the e direction (position B in FIG. 5), and the shaft 44, the connecting rod 34, and the shaft 4
3, the second swing arm 32 connected by i
direction, the second metal fitting 37 comes off, and the rope 23
moves in the direction a, the fuel lever 21 of the fuel regulator 22 moves from the operating position to the stop position, and the diesel engine 20 stops, thereby stopping the lifting device 1.

Next, when lowering the water gate, first move the forward/reverse switching lever 15 downward.

By pulling the diesel engine operation control rod 28, the rope 23 moves in the direction b as shown in FIG. It gets caught on the lower step part 36b of the first metal fitting 36 (Fig. 6),
The fuel adjustment lever 21 of the fuel adjustment device 22 moves from the stop position to the operation position and is held there. In addition,
Since the raising operation of the door body 3 is followed by its lowering operation, the female screw block 31 is in the position shown at B in FIG.

As the diesel engine 20 operates, the elevator 1 moves, the door lifting rod 2 lowers, and the door 3 lowers.

In conjunction with the lowering of the door body 3, the male threaded shaft 30 inside the rotation control device 24 rotates in the d direction via the sprocket wheel 25, the endless chain 26, and the sprocket wheel 27, and the female threaded block 3
1 moves from position B in FIG. 4 to the right, that is, in the direction of arrow f in the figure (FIG. 4).

The first swing arm 33, which has been tensioned by the spring 40, rotates in the h direction, and the connecting rod 34 also moves, and the second swing arm 32 rotates in the j direction,
It hits stopper 45 and stops.

While moving in the f direction, the female screw block 31 pushes up the free swinging piece 35a of the horizontal bracket 35 and removes the free swinging piece 35a from the lower step portion 36b of the first metal fitting 36.

Second metal fitting 3 colliding with second swing arm 32
7 rotates the second swing arm 32 in the i direction by the continued movement of the female screw block 31 in the f direction, and
The second metal fitting 37 is removed by the swing arm 32, the rope 23 is moved in the direction a, the fuel adjustment lever 21 of the fuel adjustment device 22 is moved from the operating position to the stop position, and the diesel engine 20 is stopped. As a result, the elevator 1 stops (Fig. 4).

In case of an emergency, when the emergency stop rod 29 is pulled, the push-up metal fitting 47 rotates in the k direction (Fig. 9), the protrusion 50 moves, and the first swing arm 33 is rotated in the g direction. The second swing arm 32 connected by the shaft 44, the connecting rod 34, and the shaft 43 is rotated in the i direction.

Also, when the push-up metal fitting 47 rotates in the k direction,
The free swinging piece 35a of the horizontal bracket 35 rises, and the first
It comes off from the lower step part 36b of the metal fitting 36.

When the second swing arm 32 is rotated in the i direction,
The second metal fitting 37 is removed from the second swing arm 32, the rope 23 moves in the direction a, the fuel adjustment lever 21 of the fuel adjustment device 22 moves from the operating position to the stop position, and the diesel engine 20 stops. This causes the elevator 1 to stop.

[Effect of idea]

As described above, in the present invention, the fuel adjustment lever of the internal combustion engine is operated by the mechanical internal combustion engine rotation control device to stop the rotation of the internal combustion engine and stop the lifting and lowering of the elevator and the water gate.

Therefore, the internal combustion engine has no danger of explosion, wear, damage, etc., and in the event of an emergency, the internal combustion engine can be stopped by pulling the emergency stop bar regardless of the position of the water gate body. Can be stopped.

[Brief explanation of the drawing]

FIG. 1 is a front view of a water gate equipped with an internal combustion engine-driven elevator according to the present invention at the lower limit position where the lower surface 5 of the gate body 3 collides with the bottom plate 6, and FIG. 2 is a front view at the same upper limit position. Figure 3 is an explanatory diagram of the layout of the elevator.
Fig. 4 is a plan view of the mechanical rotation control device, Fig. 5 is a sectional view taken along the line of Fig. 4, Fig. 6 is a sectional view taken along the line of Fig. 4, and Fig. 7 is a sectional view taken along the line of Fig. 4. 8 is a sectional view taken along the line of FIG. 4, and FIG. 9 is a sectional view taken along the line of FIG. 4. In the figure, 1: elevator, 2: door lifting rod, 3: door, 4: frame, 5: lower surface, 6: bottom plate, 7: elevator main body, 20: diesel engine, 22: fuel regulator.

Claims (1)

[Scope of Claim for Utility Model Registration] An internal combustion engine-driven elevator for water gates in which an elevator is driven by an internal combustion engine, and the elevator lifts and lowers a door lifting rod with a door attached to its lower end. , a mechanical internal combustion engine rotation control device is interposed between the elevator and the internal combustion engine, which operates in conjunction with the operation of the elevator and mechanically controls a fuel regulator of the internal combustion engine; The rotation control device includes an operation control rod that is connected to the fuel lever of the fuel regulator via an elastic body that is expandable and retractable in the axial direction, and a rotation control rod that is connected to the rotation drive system of the elevator and rotates. A male threaded shaft arranged substantially parallel to the male threaded shaft, a female threaded block threaded onto the male threaded shaft and movable in the axial direction by rotation of the male threaded shaft, and a female threaded block arranged at intervals in the axial direction on the operation control rod. a first metal fitting and a second metal fitting; a horizontal metal fitting having a free swinging piece that can engage with a stepped portion formed on the first metal fitting and disposed above the male screw shaft; and the male screw shaft and operation control. an engagement mechanism interlocked with the movement of the female screw block in the axial direction to maintain an engaged and disengaged state with the second metal fitting; and displaces the horizontal bracket upward so that the freely swingable piece of the horizontal bracket can be detached from the stepped portion of the first metal fitting, An internal combustion engine-driven elevator equipped with an internal combustion engine rotation control device characterized in that engagement with a metal fitting can be released.