JPH08205698A - Automatic stopper for unmanned water sprinkler - Google Patents

Abstract

PURPOSE: To provide an unmanned water sprinkler which is equipped with an automatic stopper for discontinuing the rotation of a water-sprinkling pipe simultaneously with the stoppage of its vehicle body and of water-sprinkling. CONSTITUTION: The frame 1 of a vehicle body is equipped with a sprinkling part 4 which is connected through a sprinkling valve 30 to a water-feeding hose, and the sprinkling part 4 is equipped with a sprinkling pipe 27 which sprinkles water and simultaneously rotates by a retro-reaction of sprinkling water pressure. A winder 6 for winding up wire 43 is interlockingly connected to the sprinkling pipe 27 and the base end side of the wire 43 is connected to a winding-up drum 42 mounted to the wire winder on its base side, while a stopper is connected to the wire 43 at its top end. The vehicle body frame 1 is equipped with a detector for detecting the stopper, and the detector and the sprinkling valve 30 are interlocked through an interlocking mechanism to interlock the detection operation with the valve-closing operation in the unmanned water sprinkler. In this sprinkler, the sprinkling part 4 is equipped with a sprinkling pipe rotation controller to interlock the valve-closing operation with the stopping of the rotation of sprinkling pipe 27 by a rotation controller through an operation mechanism provided between the rotation controller and the sprinkling valve 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic stop device for an unmanned watering vehicle.

[0002]

2. Description of the Related Art Conventionally, as one form of an unmanned water sprinkler, a water sprinkling section, which is connected to a water supply hose through a sprinkling valve, is provided on a vehicle body frame, and the water sprinkling section is adapted to sprinkle water while spraying water from a tip end. A water sprinkling tube that rotates by reaction is provided, and a wire winding section that winds the wire is interlockingly connected to the water sprinkling tube, and the base end side of the wire is connected to the winding drum provided in the wire winding section. , A stopper body is attached to the distal end of the wire, a detection body for detecting the stopper body is provided on the body frame, and an interlocking mechanism is provided between the detection body and the water spray valve. There is an unmanned sprinkler vehicle in which the detection operation of the detection object and the closing operation of the water sprinkling valve are linked with each other.

In such an unmanned water sprinkler, the water spouting valve is closed at the same time when the detection body detects the stopper body, so that sprinkling is stopped and the vehicle body is automatically stopped.

[0004]

However, in the above-mentioned unmanned sprinkler, even if the sprinkler valve is closed to stop the water supply to the sprinkler pipe and the sprinkler from the sprinkler pipe is stopped, the sprinkler pipe itself remains. In order to continue rotating for a while due to inertial force,
The wire winding unit also continues the wire winding operation in conjunction with it, and as a result, the wire gets caught in the winding drum, and the work of pulling out the wire when performing unmanned water spraying again becomes complicated. .

[0005]

SUMMARY OF THE INVENTION According to the present invention, a water sprinkling section which is connected to a water supply hose through a sprinkling valve is provided on a vehicle body frame, and the sprinkling section reacts to the pressure of water sprinkling while sprinkling water from the tip. A rotating water sprinkling pipe is provided, and a wire winding unit for winding the wire is interlockingly connected to the water sprinkling pipe, and the base end side of the wire is connected to a winding drum provided in the wire winding unit. A stopper body is attached to the tip side of the wire, a detection body for detecting the stopper body is provided on the vehicle body frame, and an interlocking mechanism is provided between the detection body and the sprinkling valve, and the detection body is operated by the interlocking mechanism. In an unmanned sprinkler vehicle that interlocks the detection operation with the sprinkling valve closing operation, a rotation control unit that controls the rotation of the sprinkling pipe is provided in the sprinkling unit, and an operating mechanism is provided between the rotation control unit and the sprinkling valve. Intervening,
An automatic stop device for an unmanned watering vehicle, characterized in that the closing operation of the water spray valve and the rotation stop operation of the water spray pipe by the rotation control unit are linked.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 shows an unmanned water sprinkler according to the present invention. The unmanned water sprinkler A has a front wheel 2 made of caster wheels attached to a lower front end of a vehicle body frame 1 and rear left and right ends. Left and right rear wheels 3 and 3 are attached to the side portions, respectively, and on the vehicle body frame 1, a water sprinkling portion 4 is provided at the rear portion, a power transmission portion 5 is provided at a position immediately in front thereof, and a wire winding portion 6 is provided at a position immediately in front thereof. Is provided, the wire alignment portion 7 is provided immediately in front thereof, and the detection body 9 is attached to the position immediately in front thereof via a stay 8 projecting forward from the body frame 1.
An automatic stop device M, which is the subject matter of the present invention, is provided between the detection body 9 and the sprinkling section 4, and these are covered by a front cover body 10 and a rear cover body 11 that are formed in front and rear in two parts. are doing. Reference numeral 12 denotes a pivot shaft that pivotally supports the front end portion of the front cover body 10, and the front cover body 10 can be opened and closed vertically about the pivot shaft 12. 13 is a guide roller.

As shown in FIGS. 1 to 3, the water sprinkling section 4 has a base pipe 20 standing upright in the center of the rear side of the vehicle body frame 1 with its axis oriented vertically and connected to the lower portion of the base pipe 20. The front end of the pipe 21 is continuously connected, the tip of the water supply hose 22 is connected to the rear end of the connection pipe 21, and the base end of the water supply hose 22 is connected to a water supply pump (not shown), while the base pipe 20 A pivot pipe 24 is rotatably fitted to the outer peripheral surface of the upper part of the nozzle, and a nozzle 25 and a reaction plate 26, which are biased by a spring (not shown), are arranged at the upper end of the pivot pipe 24, and the nozzle is provided. Reacting plate 26 by spraying water from 25
Is rotated to draw the nozzle 25 by a spring to form a sprinkler for sprinkling water while rotating, and a pair of sprinklers extending horizontally outward in the middle of the pivot pipe 24.
Connect the base ends of 27, 27 to each other, bend the tip of each sprinkler pipe 27, 27 into an approximately L shape in the direction opposite to the rotation direction, and attach sprinkler nozzles 28, 28 to each tip. There is.

Moreover, a water spray valve 30 is built in the middle of the communication pipe 21, and the opening / closing operation shaft 31 of the water spray valve 30 is installed.
Project outward from the left side wall of the connecting pipe 21,
Attach the base end of the opening / closing operation handle 32 to 31 via the boss portion 33, and project the tip gripping portion 32a of the opening / closing operation handle 32 upward and rearward from the left rear wall of the rear cover body 11. , The handle 32 for opening and closing by gripping the tip grip portion 32a.
The water spray valve 30 can be opened by rotating the handle downward, and the water spray valve 30 can be opened by rotating the handle 32 upward. I am able to do it.

In this manner, the opening / closing operation handle 32 is operated to open the watering valve 30, and water is supplied from the water supply pump to the water supply hose 22 → the connecting pipe 21 → the base pipe 20 → the pivotal support pipe 24. Water can be sprinkled from 25, and water can also be sprinkled from sprinkling pipes 27, 27 → sprinkling nozzles 28, 28. At this time, the base pipe is generated due to the reaction of the pressure of sprinkling water sprinkled from sprinkling nozzles 28, 28. The water sprinkling pipes 27, 27 and the pivot pipe 24 are integrally rotated about 20 to sprinkle water.

As shown in FIGS. 1 to 3, the power transmission section 5 has a transmission shaft 35 which is erected on the vehicle body frame 1 located on the right front side of the base tube 20 with its axis lined in the vertical direction. An input large-diameter gear 36 is attached to the upper end of the transmission shaft 35, and the input large-diameter gear 36 is meshed with an output small-diameter gear 37 attached to the outer peripheral surface of the central portion of the pivot pipe 24, while at the bottom of the transmission shaft 35. A worm gear 38 is formed, and the worm gear 38 is meshed with a worm wheel 39 provided in the wire winding section 6 described later.

Thus, when the pivot tube 24 rotates,
The rotational force is transmitted to the small output gear 37, the large input gear 36, the transmission shaft 35, the worm gear 38, and the worm wheel 39.

As shown in FIGS. 1 to 3, the wire winding portion 6 is formed by integrally molding a pair of left and right drum stays 1a, 1a in the center portion on the left and right sides of the vehicle body frame 1, and between the drum stays 1a, 1a. The rotary shaft 40 is horizontally laid on the rotary shaft 40 with the axis line oriented in the left-right width direction, and the winding drum 42 is attached to the rotary shaft 40.
The worm wheel 39 is connected to the right side wall of the winding 42, and the winding drum 42 is linked to the power transmission unit 5 through the worm wheel 39. The winding drum 42 has a proximal end of the wire 43. The part side is wound to form a winch capable of winding the wire 43.

Then, as shown in FIG. 1, the tip of the wire 43 is connected to a stake 44 which is erected at the sprinkling work place.

In this way, the rotational force is transmitted to the worm gear 38 → the worm wheel 39 → the winding drum 42 of the power transmission unit 5, and the wire 43 is wound around the rotating winding drum 42. A is traveling forward toward the stake 44. A one-way clutch is provided on the transmission shaft 35 of the power transmission unit 5 so that the unmanned water sprinkler A does not travel backward even when the pivot pipe 24 rotates in the reverse direction.

As shown in FIGS. 1 to 3, the wire aligning section 7 has a front view portal type support frame 50 provided upright on the front portion of the vehicle body frame 1, and the center of a horizontal portion 50a of the support frame 50. A support shaft (51) is pivotally supported by the portion, and an alignment plate (52) as a transfer member is pivotally supported at a lower part of the support shaft (51) so as to be located in the support frame (50).

The alignment plate 52 is formed in a disk shape, and a plurality of locking holes 52a, 52a, ... Are formed at regular intervals (at an equal pitch) along the outer circumference, and the alignment plate 52 is arranged in the radial direction. A wire guide 53 is hung vertically in the middle, and the wire guide 53 is formed in a ring shape. The shaft 53a at the upper end of the wire guide 53 is rotatably supported by the alignment plate 52, and the wire guide 53 is inserted in the lower ring. 43 is inserted. The length from the center of the aligning plate 52 to the mounting position of the wire guide 53 is set to be half the wire winding width of the winding drum 42, and the wire guide 53 rotates once to wind the wire. Wire 43 across the width of drum 42
So that it can be rolled.

The vertical portion 50b of the support frame 50
A support shaft 55 is attached to the rear side of the support shaft 55 in a protruding manner, and a middle portion of a rotary arm 56 is pivotally supported on the support shaft 55 as a driven rotary body.
Is rotatably supported via a torsion spring 59 on the pivot pipe 57, and both ends of the torsion spring 59 are hooked on the rotating arm 56 and the support frame 50, so that the rotating arm 56 can be seen in a rear view. It is urged to rotate counterclockwise.

A base portion of a locking arm 61 is pivotally supported on an upper end of the rotating arm 56, and a claw portion is provided on a tip end of the locking arm 61.
61a is formed, and the claw portion 61a protrudes downward to form the alignment plate.
Inserted in the locking hole 52a of 52, the locking arm 61 and the rotating arm
A spring 62 is interposed between the 56 and the claw portion 61a of the locking arm 61.
Is urged in the direction of inserting into the locking hole 52a.

On the other hand, a roller 63 is rotatably supported at the lower end of the rotating arm 56, and the roller 63 is supported by the torsion spring.
It is urged by 59 to contact the side surface of the winding drum 42, and a protrusion 42a is provided on the side surface of the winding drum 42 with which the roller 63 contacts, so that the roller 63 is rotated by the rotation during wire winding. It is configured to get over the protrusion 42a while abutting.

Then, a bracket 64 is fixed to the front of the horizontal portion 50a of the support frame 50 so that the left and right positions of the bracket 64 can be adjusted, and a stop arm 65 is pivotally supported on the bracket 64.
A claw 65a is provided at the tip of the alignment plate 65a.
It can be inserted into the locking hole 52a of 52. However, the claw portion
Each of 61a and 65a has an inclined portion that is allowable with respect to the rotation direction of the alignment plate 52, and has a shape that blocks in the reverse rotation direction.

In this way, the water is sprayed from the water spray nozzles 28, 28 so that the pivot pipe 24 is rotated and the power transmission section 5 is rotated.
The winding drum 42 is rotated via the
When you get on a, the rotating arm 56 rotates to the right (in rear view).
The locking arm 61 also moves to the right and the claw 61a
Goes over the alignment plate 52 and enters the next locking hole 52a. At this time, the alignment plate 52 tries to rotate to the left (reverse), but the rotation is blocked by the claw portion 65a of the stop arm 65. And
Further, the winding drum 42 is rotated, and the roller 63 is protruded 42a.
After passing through, the rotating arm 56 rotates counterclockwise (rear view) by the urging force of the spring 59, and the locking arm 61 also moves to the left. At this time, however, the claw portion 61a remains in the locking hole 52a. The engaging hole 52a is rotated by one pitch so that the aligning plate 52 is drawn. At this time, the claw portion 65a of the stopping arm 65 becomes an inclination in the escape direction, gets over, and enters the adjacent locking hole 52a. However, the claw part
When the escape direction of 61a and 65a is reversed, the alignment plate
52 can be rotated in the opposite direction and roller 63
It rotates when riding on 42a.

When the winding drum 42 makes one revolution in this way,
The alignment plate 52 is rotated by one pitch of the locking hole 52a, and the wire guide 53 is also rotated similarly (at this time, since the wire guide 53 passes through the wire 43, the shaft portion 53a rotates so as to face the front). When the wire 43 is continuously wound up, the wire guide 53 reciprocates left and right when viewed from the front, and the wire 43 is guided by the wire guide 53 and wound in line with the winding drum 42. become.

As shown in FIGS. 1 to 3, the detector 9 is attached to a stay 8 projecting forward from the front end of the vehicle body frame 1, and a support shaft 68 is oriented vertically on the stay 8. The body of the detector that stands upright and extends in the left-right width direction on the support shaft 68.
A midway portion of 9a is rotatably attached via a boss portion 66, a wire insertion ring 9b is formed at the right end portion of the detection body 9a, and the wire insertion ring 9b is arranged on the left-right center line of the body frame 1. Then insert the wire into the wire insertion ring 9b.
The middle part of 43 is inserted.

In this way, when the wire insertion ring 9b is brought into contact with and locked to the stopper body 67 attached to the tip of the wire 43, the body 9a of the detector body is rotated around the support shaft 68. I am trying.

As shown in FIGS. 1 to 4, the automatic stop device M is provided in the sprinkling section 4 and an interlocking mechanism 70 provided between the left end portion 9c of the detector body 9a and the sprinkling valve 30. Sprinkler pipe 27,27
And a rotation control section 85 for stopping the rotation of the rotation control section 85, and an operation mechanism 86 interposed between the rotation control section 85 and the opening / closing operation handle 32.

As shown in FIGS. 1 to 3, the interlocking mechanism 70 is provided on the vehicle body frame 1 with the base pipe 20 of the sprinkler section 4.
A pivot shaft 71 is erected at the front position on the left side of the shaft with its axis oriented vertically, and the right end edge of a rectangular frame-shaped locking ring 72 is pivoted back and forth on the pivot shaft 71 via a boss portion 73. The locking ring 72 is freely pivoted, and the left end 9c of the detector body 9a is interlockingly connected to the left end of the locking ring 72 via an interlocking wire 74.
A restoring tension spring 76 is provided between the lower middle part of the 72 and a locking piece 75 protruding at the left side position of the connecting pipe 21 to urge the locking ring 72 to rotate rearward, Further, the locking arm 77 is extended from the boss portion 33 supporting the proximal end of the opening / closing operation handle 32 toward the locking ring 72, and the locking projection 77 is attached to the tip of the locking arm 77. 77a is formed, and the locking projection is formed.
The 77a is brought into contact with the upper edge 72a of the locking ring 72 from below to be locked.

In addition, the valve closing spring is provided between the spring locking pin 80 projecting from the base of the locking arm 77 and the spring locking projection 81 vertically extending from the rear lower surface of the vehicle body frame 1. The boss portion 33 is rotatably urged clockwise in FIG. 2 by the spring 82, and the opening / closing operation handle 32 and the locking arm are urged via the boss portion 33.
77 and 77 are rotationally biased in the same clockwise direction and in a direction of closing and actuating the water spray valve 30.

In this way, when the locking projection 77a at the tip of the locking arm 77 is locked to the upper edge 72a of the locking ring 72, the water spray valve 30 is held in the open state. As shown in FIG. 3, the detection body 9a connected to the locking ring 72 via the interlocking wire 74 maintains a stopper body non-detection posture that is substantially orthogonal to the center line in the front-rear direction. I am trying.

The stopper body attached to the wire 43
The wire insertion ring 9b comes into contact with 67, the wire insertion ring 9b is moved rearward, the detection body 9 is rotated around the support shaft 68, and the left end side of the detection body 9 is moved forward. When the posture of detecting the stopper body is taken, the interlocking wire 74 is pulled forward, and the locking ring 72 connected to the rear end of the interlocking wire 74 pivots forward to move the locking ring 72. The locking projection 77a of the locking arm 77 with respect to the upper edge 72a of the valve is released, and the urging force of the valve closing spring 82 causes the boss 33 to rotate in the clockwise direction.
30 is closed to allow watering to be stopped at the same time as the vehicle stops running.

As shown in FIGS. 2 and 4, the rotation control unit 85 winds a band brake body 85a around the outer peripheral surface of the pivot pipe 24, and one end of the band brake body 85a is attached to the rear cover body.
The L-shaped lever body 85b is fixed to the ceiling wall of 11 through a fixing pin 97, and the other end is connected to one end of an L-shaped lever body 85b through a connecting pin 98. A wire receiving body 87 attached to the ceiling wall of the body 11 is rotatably supported at its midpoint through a pivot pin 99 having its axis oriented vertically.

As shown in FIG. 4, the actuating mechanism 86 is composed of an outer wire 86a and an inner wire 86b slidably inserted into the outer wire 86a. It is fixed to the inner surface of the ceiling wall of the side cover body 11 and the outer peripheral surface of the base pipe 20 via wire receiving bodies 87 and 88, respectively, and one end of the inner wire 86b is an L-shaped lever body of the rotation control section 85. Connecting pin at the other end of 85b
While interlockingly connected via 96, the other end is interlockingly connected to the base of the opening / closing operation handle 32.

In this way, the wire insertion ring 9b abuts on the stopper body 67 attached to the wire 43, and the detection body 9
By adopting the stopper detection posture, the water spray valve 30
The inner wire 86b is pulled by the opening / closing operation handle 32 that pivots in the direction of closing, and the band brake body 85a is pressed against the outer peripheral surface of the pivot pipe 24 through the L-shaped lever body 85b. The rotation of the pivot pipe 24 is forcibly stopped, and the rotation of the water spray pipes 27, 27 attached to the pivot pipe 24 is stopped at the same time as the traveling stop and the water spray stop.

At this time, the rotation of the output small-diameter gear 37 attached to the lower part of the pivot pipe 24 is also stopped, so that the winding drum 42 of the wire winding portion 6 is also rotated via the power transmission portion 5. The winding operation of the wire 43 by the winding drum 42 is also stopped.

Therefore, it is possible to reliably prevent the problem that the water sprinkling pipes 27, 27 are rotated by the inertial force when the water sprinkling is stopped and the wire 43 is wound into the winding state where the winding drum 42 is difficult to wind.

FIG. 5 shows a waterless water sprinkler as another embodiment, in which the proximal end of the manual stop wire 90 is connected to the distal end side portion of the locking ring 72 and the wire 90 is once moved forward. The water supply hose 22 is stretched and wound around the folding guide roller 91 attached to the vehicle body frame 1 in a folded manner to extend to the tip of the water supply hose 22 at the rear, and further along the water supply hose 22 so that It is extended to a position near the base end portion, a grip portion 92 is attached to the extension end, and a warning display body 93 is attached to the grip portion 92 for calling attention to the danger. 94 is a wire guide body, and 95 is a water supply opening / closing valve.

In this way, when the gripping portion 92 is gripped and the manual stopping wire 90 is pulled against the elastic biasing force of the restoring tension spring 76, the locking ring 72 is rotated forward by the interlocking wire 74. As in the case of being moved, the locking arm 77 is unlocked by rotating forward, and the vehicle body stop, the water spray stop, and the rotation of the water spray pipes 27, 27 are simultaneously and forcibly performed. I am able to do that.

Therefore, the manual stop wire 90 as described above is used.
In an emergency, the waterless water-sprayer can be stopped at the same time as the vehicle body, the water-spraying is stopped, and the water-spraying pipe is stopped at the same time.

If the length of the manual stop wire 90 is at least longer than the radius of rotation of the sprinkler pipe 27, the manual stop wire 90 can be safely operated without hitting the rotating sprinkler pipes 27, 27. The above-described operations of stopping the vehicle body, stopping the sprinkling, and stopping the rotation of the sprinkling pipe can be performed simultaneously.

Further, the manual stop wire 90 releases the guide from the wire guide body 94, arranges the grip portion 92 in front of the vehicle body, and grips the grip portion 92 to pull the vehicle body. The vehicle body can be moved, and the manual stop wire 90 can also be used as a vehicle body towing wire.

[0041]

According to the present invention, the following effects can be obtained.

That is, the sprinkling section is provided with a rotation control section for controlling the rotation of the sprinkling pipe, and an operating mechanism is interposed between the rotation control section and the sprinkling valve to control the closing operation and the rotation of the sprinkling valve. Since the rotation stop operation of the water spray pipe by the part is linked, when the detection body detects the stopper body and closes the water spray valve through the interlocking mechanism, the rotation control part is linked with it. The rotation of the sprinkler is stopped, and the winding drum of the wire winding unit is also stopped.

Therefore, it is possible to prevent the problem that the wire is wound up in a state where the winding drum is difficult to be wound up, and it is possible to easily perform the wire drawing work when the unmanned watering vehicle travels unmanned again. As a result, the efficiency of unmanned sprinkling work can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an unmanned water sprinkler equipped with an automatic stop device according to the present invention.

FIG. 2 is a sectional side view of the unmanned watering truck.

FIG. 3 is an explanatory plan view of the unmanned water sprinkler.

FIG. 4 is an explanatory diagram of an automatic stop device.

FIG. 5 is an explanatory plan view of an unmanned water sprinkler as another embodiment.

[Explanation of symbols]

 A Unmanned water sprinkler M Automatic stop device 1 Body frame 2 Front wheel 3 Rear wheel 4 Water sprinkling part 5 Power transmission part 6 Wire winding part 7 Wire aligning part 9 Detecting body

Claims (1)

[Claims] 1. A body frame is provided with a water sprinkling portion which is connected to a water supply hose via a water sprinkling valve, and the water sprinkling portion is provided with a water sprinkling pipe which is rotated by a reaction of pressure of water sprinkling while sprinkling water from a tip end. A wire winding section for winding the wire around the water sprinkler is interlocked and connected, and the base end side of the wire is connected to the winding drum provided in the wire winding section, and a stopper body is attached to the tip side section of the wire. A detection body that detects the stopper body is attached to the vehicle body frame, and an interlocking mechanism is provided between the detection body and the sprinkling valve, and the interlocking mechanism detects the detection body and closes the sprinkling valve. In an unmanned sprinkler that works in conjunction with operation, the sprinkler has a rotation control unit that controls the rotation of the sprinkler,
An operating mechanism is provided between the rotation control unit and the water sprinkling valve, and the closing operation of the water sprinkling valve and the rotation stop operation of the water sprinkling pipe by the rotation control unit are interlocked with each other. Automatic stop device.