JP3640263B2 - Automatic stop device for unmanned water truck - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an automatic stop device for an unmanned water truck.
[0002]
[Prior art]
Conventionally, as one form of an unmanned water truck, a sprinkler connected to a water supply hose via a sprinkler valve is provided on the body frame, and the sprinkler that rotates by the reaction of the sprinkler pressure while sprinkling from the tip is sprinkled on the sprinkler. A water pipe is provided, and a wire take-up portion for winding the wire is operated in conjunction with the water spray pipe, and the base end side of the wire is connected to a take-up drum provided in the wire take-up section, and the tip of the wire A stopper body is attached to the side, 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 watering valve, and the detection body is detected by the interlocking mechanism. There is an unmanned watering wheel that links the operation and the closing operation of the watering valve.
[0003]
In such an unmanned watering vehicle, the detection body detects the stopper body and at the same time the watering valve is closed so that the watering is stopped and the vehicle body is automatically stopped.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned unmanned watering vehicle, the watering valve is closed so that water supply to the watering pipe is stopped, and even if watering from the watering pipe is stopped, the watering pipe itself continues to rotate due to inertial force for a while. The wire winding unit also continues the wire winding operation in conjunction with this, and as a result, the wire gets stuck in the winding drum, and the wire drawing operation when performing unmanned watering again becomes complicated. It was.
[0005]
[Means for Solving the Problems]
The present invention provides a water spray hose connected to a water supply hose via a sprinkler valve on the vehicle body frame, and a sprinkler pipe that is sprinkled from the tip while rotating by the reaction of the sprinkler pressure. A wire winding unit that winds and operates the wire is connected to the water pipe, and the proximal end side of the wire is connected to a winding drum provided in the wire winding unit, and a stopper body is provided on the distal end side portion 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 watering valve, and the detecting body is detected and the watering valve is closed by the interlocking mechanism. In the unmanned sprinkler wheel that is linked to the water sprinkler, the sprinkler is provided with a rotation controller that controls the rotation of the sprinkler pipe, and an operating mechanism is interposed between the rotation controller and the sprinkler valve. Blocking operation and sprinkling by rotation controller The automatic stop device unattended water truck, characterized in that in conjunction with the rotation stopping operation is intended to provide cents.
[0006]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0007]
1 to 3 is an unmanned water truck according to the present invention. The unmanned water truck A has a front wheel 2 made of caster wheels attached to a lower part of a front end of a body frame 1 and a left and right side of a rear end. The left and right rear wheels 3 and 3 are attached, respectively, on the body frame 1, the water sprinkling part 4 is provided at the rear part, the power transmission part 5 is provided at the position immediately before it, and the wire winding part 6 is provided at the position immediately before that. A wire aligning portion 7 is provided at a position just before it, and a detection body 9 is attached to the position just before that via a stay 8 protruding forward from the vehicle body frame 1. An automatic stop device M which forms the gist of the invention is interposed, and these are covered with a front cover body 10 and a rear cover body 11 which are formed in two parts in the front and rear. Reference numeral 12 denotes a pivot that pivotally supports the front end portion of the front cover body 10, and the front cover body 10 can be opened and closed in the vertical direction around the pivot shaft 12. 13 is a guide roller.
[0008]
As shown in FIGS. 1 to 3, the water sprinkling unit 4 is configured such that a base tube 20 is erected in the center of the rear side of the body frame 1 with the axis line in the vertical direction, and a connecting tube 21 is formed below the base tube 20. The front end is connected continuously, 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 outer periphery of the upper part of the base pipe 20 A pivot tube 24 is rotatably fitted to the surface, and a nozzle 25 and a reaction plate 26 urged by a spring (not shown) are arranged at the upper end of the pivot tube 24, and water is supplied from the nozzle 25. The reaction plate 26 rotates by spraying the nozzle 25 by the spring, forming a sprinkler that sprinkles water while rotating, and a pair of horizontally extending outwards in the middle of the pivot tube 24 The base ends of the sprinkling pipes 27, 27 are connected in a continuous manner, and the tip ends of the sprinkling pipes 27, 27 are bent in a substantially L shape in the direction opposite to the rotation direction. It is attached a water spray nozzle 28 to the part.
[0009]
In addition, a watering valve 30 is incorporated in the middle of the communication pipe 21 described above, and the opening / closing operation shaft 31 of the watering valve 30 protrudes outward from the left side wall of the connecting pipe 21 to open / close the opening / closing operation shaft 31. The base end of the handle 32 is attached via the boss 33, and the tip gripping portion 32a of the opening / closing operation handle 32 protrudes from the left rear wall of the rear cover body 11 toward the rear outer side, thereby gripping the tip. By holding the part 32a and turning the opening / closing operation handle 32 downward, the watering valve 30 can be opened, and the handle 32 can be turned upward. Thus, the watering valve 30 can be opened.
[0010]
In this way, the watering valve 30 is opened by operating the opening / closing operation handle 32, 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, thereby spraying water from the nozzle 25. In addition, water can be sprayed from the sprinkling pipes 27, 27 → sprinkling nozzles 28, 28. At this time, the base pipe 20 is centered by the reaction of the sprinkling pressure spouted from the sprinkling nozzles 28, 28. Thus, the water spray pipes 27 and 27 and the pivot support pipe 24 rotate integrally while performing water spraying.
[0011]
As shown in FIGS. 1 to 3, the power transmission unit 5 is configured such that a transmission shaft 35 is erected on the vehicle body frame 1 positioned in front of the right side of the base tube 20 with an axis line in the vertical direction. An input large-diameter gear 36 is attached to the upper end of 35, and the input large-diameter gear 36 is meshed with an output small-diameter gear 37 attached to the middle outer peripheral surface of the pivot tube 24, while a worm gear 38 is provided below the transmission shaft 35. The worm wheel 39 is formed and meshed with a worm wheel 39 provided on the wire take-up portion 6 described later.
[0012]
Thus, when the pivot tube 24 rotates, the rotational force is transmitted from the output small diameter gear 37 → the input large diameter gear 36 → the transmission shaft 35 → the worm gear 38 → the worm wheel 39.
[0013]
As shown in FIGS. 1 to 3, the wire winding unit 6 is formed by integrally forming a pair of left and right drum stays 1 a, 1 a at the center of the left and right sides of the body frame 1, and a rotating shaft between the drum stays 1 a, 1 a 40 is horizontally mounted with its axis lined in the left-right width direction, and a winding drum 42 is attached to the rotating shaft 40. The worm wheel 39 is connected to the right side wall of the winding drum 42 to wind A drum 42 is connected to the power transmission unit 5 via the worm wheel 39, and the winding drum 42 is wound around the base end side of the wire 43 so that a winch capable of winding the wire 43 is provided. Forming.
[0014]
And the front-end | tip of the wire 43 is connected with the pile 44 standingly arranged in the watering work place, as shown in FIG.
[0015]
In this way, the rotational force is transmitted from the worm gear 38 to the worm wheel 39 of the power transmission unit 5 to the winding drum 42 and the wire 43 is wound around the rotating winding drum 42, whereby the unmanned water truck A is piled up. The vehicle is moving forward toward 44. Note that a one-way clutch is provided on the transmission shaft 35 of the power transmission unit 5 so that the unmanned water truck A does not travel backward even when the pivotal support tube 24 rotates in the reverse direction.
[0016]
As shown in FIGS. 1 to 3, the wire aligning portion 7 has a front-view portal-type support frame 50 erected on the front portion of the body frame 1 and is supported at the center of the horizontal portion 50 a of the support frame 50. A shaft 51 is pivotally supported, and an alignment plate 52 is pivotally supported as a transfer member below the support shaft 51 so as to be positioned in the support frame 50.
[0017]
The alignment plate 52 is formed in a disc shape, and a plurality of locking holes 52a, 52a... Are formed at regular intervals along the outer periphery (at equal pitches). The wire guide 53 is vertically formed, 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 on the alignment plate 52, and the wire 43 is inserted into the lower ring. doing. Note that the length from the center of the alignment plate 52 to the mounting position of the wire guide 53 is half the wire winding width of the winding drum 42, and the wire guide 53 makes one turn so that the winding is performed. The wire 43 can be wound around the entire width of the drum 42.
[0018]
Then, a support shaft 55 is attached to the vertical portion 50b of the support frame 50 so as to protrude rearward, and the middle part of the rotating arm 56 can be rotated as a driven rotating body on the support shaft 55 via a pivot pipe 57. The torsion spring 59 is externally fitted to the pivot pipe 57, and both ends thereof are hooked on the pivot arm 56 and the support frame 50 so that the pivot arm 56 rotates counterclockwise in the rear view. Is energized.
[0019]
Further, a base portion of the locking arm 61 is pivotally supported at the upper end of the rotating arm 56, and a claw portion 61a is formed at the tip of the locking arm 61. The claw portion 61a protrudes downward to protrude the alignment plate. 52 is inserted into the locking hole 52a, and a spring 62 is interposed between the locking arm 61 and the rotating arm 56, so that the claw portion 61a of the locking arm 61 is inserted into the locking hole 52a. Energized.
[0020]
On the other hand, a roller 63 is pivotally supported at the lower end of the rotating arm 56, and the roller 63 is biased by the torsion spring 59 so as to abut on the side surface of the take-up drum 42. A protrusion 42a is provided on the side surface of the winding drum 42 with which the roller 63 comes into contact, and the roller 63 gets over the protrusion 42a while contacting with the rotation during winding of the wire.
[0021]
Then, the bracket 64 is fixed to the front of the horizontal portion 50a of the support frame 50 so that the left and right positions can be adjusted, a stop arm 65 is pivotally supported on the bracket 64, and a claw portion 65a is provided at the tip of the stop arm 65. The claw portion 65a can be inserted into the locking hole 52a of the alignment plate 52. However, the claw portions 61a, 65a have an inclined portion that can be allowed with respect to the rotation direction of the alignment plate 52, and have a shape that prevents it in the reverse rotation direction.
[0022]
In this way, when the pivot tube 24 is rotated by water spraying from the water spray nozzles 28, 28, the winding drum 42 is rotated via the power transmission unit 5, and the roller 63 rides on the protrusion 42a, As 56 rotates to the right (in rear view), the locking arm 61 also moves to the right, and the claw portion 61a once gets over the alignment plate 52 and enters the adjacent locking hole 52a. At this time, the alignment plate 52 attempts to rotate left (reverse), but the rotation is blocked by the claw portion 65a of the restraining arm 65. When the take-up drum 42 is further rotated and the roller 63 passes through the protrusion 42a, the rotating arm 56 is rotated counterclockwise (rear view) by the urging force of the spring 59, and the locking arm 61 is also moved leftward. However, at this time, the locking hole 52a is rotated by one pitch so as to draw the alignment plate 52 while the claw portion 61a remains in the locking hole 52a. At this time, the claw portion 65a of the restraining arm 65 is inclined in the escape direction and gets over and enters the adjacent locking hole 52a. However, if the direction of inclination of the claw portions 61a and 65a in the escape direction is reversed, the alignment plate 52 can be rotated in the reverse direction and rotated when the roller 63 rides on the protrusion 42a.
[0023]
When the winding drum 42 rotates once in this way, the alignment plate 52 is rotated by one pitch of the locking hole 52a, and the wire guide 53 is rotated in the same manner (at this time, the wire guide 53 passes through the wire 43, so 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. It is wound up in alignment with the winding drum 42.
[0024]
As shown in FIGS. 1 to 3, the detection body 9 is attached to a stay 8 that protrudes forward from the front end of the vehicle body frame 1, and a support shaft 68 is erected on the stay 8 with the axis line in the vertical direction. The middle part of the detection body 9a extending in the left-right width direction on the support shaft 68 is rotatably attached via the boss 66, and the wire insertion ring 9b is formed on the right end of the detection body 9a. The wire insertion ring 9b is disposed on the left and right center line of the vehicle body frame 1, and the middle portion of the wire 43 is inserted into the wire insertion ring 9b.
[0025]
In this way, when the wire insertion ring 9b is abutted and locked to the stopper body 67 attached to the tip of the wire 43, the detection body 9a is rotated around the support shaft 68. Yes.
[0026]
As shown in FIGS. 1 to 4, the automatic stop device M is provided in the sprinkler 27 and the interlocking mechanism 70 interposed between the left end 9 c of the detection body 9 a and the sprinkler valve 30, and the sprinkler 27. , 27 and an operation mechanism 86 interposed between the rotation control unit 85 and the opening / closing operation handle 32.
[0027]
As shown in FIGS. 1 to 3, the interlocking mechanism 70 is erected on the vehicle body frame 1 with the pivot shaft 71 vertically directed at the left front position of the base tube 20 of the water sprinkling unit 4. The right end edge of the rectangular frame-shaped locking ring 72 is pivotally supported on the pivotal support shaft 71 via the boss 73 so as to be pivotable forward and backward, and the detection body is mounted on the left end portion of the locking ring 72. The left end portion 9c of 9a is interlocked and connected via an interlocking wire 74, and between the lower middle part of the locking ring 72 and the locking piece 75 protruding from the left side position of the connecting pipe 21. The locking ring 72 is pivotally biased backward via a restoring tension spring 76. Further, the boss 33 supporting the base end of the opening / closing operation handle 32 is directed toward the locking ring 72. The locking arm 77 is extended to form a locking projection 77a at the tip of the locking arm 77, and the locking projection 77a is lowered to the upper edge 72a of the locking ring 72. More So that it can be locked by.
[0028]
In addition, a valve closing spring 82 is interposed between a spring locking pin 80 protruding from the base of the locking arm 77 and a spring locking protrusion 81 extending from the rear lower surface of the vehicle body frame 1. 2, the boss 33 is urged to rotate clockwise in FIG. 2 by the spring 82, and the opening / closing operation handle 32 and the locking arm 77 are connected to the same clockwise direction via the boss 33. In addition, it is urged to rotate in the direction in which the watering valve 30 is closed.
[0029]
In this way, when the locking protrusion 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 an open state, As shown in FIG. 3, the detection body main body 9a connected to the locking ring 72 via the interlocking wire 74 maintains a stopper body non-detection posture substantially orthogonal to the front-rear direction center line. Yes.
[0030]
Then, the wire insertion ring 9b comes into contact with the stopper body 67 attached to the wire 43, the wire insertion ring 9b is moved rearward, the detection body 9 rotates about the support shaft 68, and the detection body 9 When the stopper body detection posture in which the left end side is moved forward, the interlocking wire 74 is pulled forward, and the locking ring 72 connected to the rear end of the interlocking wire 74 rotates forward. Then, the locking protrusion 77a of the locking arm 77 with respect to the upper edge 72a of the locking ring 72 is released, and the boss 33 is watched by the tensile biasing force of the valve closing spring 82. Rotating in the direction, the watering valve 30 is closed, so that the watering can be stopped simultaneously with the stop of the traveling of the vehicle body.
[0031]
As shown in FIGS. 2 and 4, the rotation control unit 85 winds a band brake body 85 a around the middle outer peripheral surface of the pivot tube 24, and one end of the band brake body 85 a is attached to the ceiling wall of the rear cover body 11. The other end is connected to one end of the L-shaped lever body 85b via a connecting pin 98, and the L-shaped lever body 85b is connected to the ceiling wall of the rear cover body 11. A midway portion is pivotally supported by a wire receiving body 87 attached to the upper and lower sides via a pivot pin 99 whose axis is directed in the vertical direction.
[0032]
As shown in FIG. 4, the operating mechanism 86 is formed of an outer wire 86a and an inner wire 86b slidably inserted into the outer wire 86a. 11 is fixed to the inner surface of the ceiling wall and the outer peripheral surface of the base tube 20 via wire receivers 87 and 88, respectively, and the inner wire 86b has one end in addition to the L-shaped lever body 85b of the rotation controller 85. The other end is connected to the base of the opening / closing operation handle 32 while the other end is connected to the base via a connecting pin 96.
[0033]
In this way, when the wire insertion ring 9b comes into contact with the stopper body 67 attached to the wire 43 and the detection body 9 takes the stopper detection posture, when the vehicle body is stopped and sprinkling is stopped at the same time. The inner wire 86b is pulled by the opening / closing operation handle 32 that rotates in the direction of closing the watering valve 30, and the band brake body 85a is pressed against the outer peripheral surface of the pivot tube 24 via the L-shaped lever body 85b. Thus, the rotation of the pivot pipe 24 is forcibly stopped, and the rotation of the water spray pipes 27 and 27 attached to the pivot pipe 24 is stopped simultaneously with the travel stop and the water spray stop.
[0034]
At this time, since the rotation of the output small diameter gear 37 attached to the lower part of the pivot tube 24 is also stopped, the rotation of the winding drum 42 of the wire winding unit 6 through the power transmission unit 5 is also stopped. The winding operation of the wire 43 by the winding drum 42 is also stopped.
[0035]
Therefore, it is possible to reliably prevent the occurrence of the problem that the water spray pipes 27 and 27 are rotated by the inertial force when the water spray is stopped and the wire 43 is wound up in a state where it is difficult to wind the winding drum 42.
[0036]
FIG. 5 shows an anhydrous water sprinkler as another embodiment, in which the base end of a manual stop wire 90 is connected to the distal end side portion of the locking ring 72, and the wire 90 is once extended forward. Then, it is wound around a folding guide roller 91 attached to the vehicle body frame 1 in a folded shape and extended to the tip of the rear water supply hose 22, and further along the water supply hose 22, the base end of the water supply hose 22 The grip part 92 is extended to the vicinity, the grip part 92 is attached to the extension end, and a warning display 93 is attached to the grip part 92 to call attention to the danger. 94 is a wire guide body, and 95 is a water supply opening / closing valve.
[0037]
In this way, when the grip portion 92 is gripped and the manual stop 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. In the same manner as in the case, the locking arm 77 is unlocked, and the vehicle body stop, the water spray stop, and the water spray pipes 27 and 27 can be stopped simultaneously and forcibly. I am doing so.
[0038]
Therefore, by pulling the manual stop wire 90 as described above, it is possible to simultaneously stop the body of the anhydrous water sprinkler, stop watering, and stop watering pipe rotation in an emergency.
[0039]
If the length of the manual stop wire 90 is at least longer than the radius of rotation of the water spray tube 27, the manual stop wire 90 can be safely used without hitting the rotating water spray tubes 27 and 27. The operations of stopping the vehicle body, stopping watering, and stopping watering pipe rotation can be performed simultaneously.
[0040]
In addition, the manual stop wire 90 moves the vehicle body by releasing the guide from the wire guide body 94, placing the grip portion 92 in front of the vehicle body, and holding the grip portion 92 and pulling the vehicle body. The manual stop wire 90 can also be used as a body pulling wire.
[0041]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0042]
In other words, a rotation control unit that controls the rotation of the water spray pipe is provided in the watering unit, and an operation mechanism is interposed between the rotation control unit and the watering valve so that the closing operation of the watering valve and the water spraying by the rotation control unit are performed. Since the rotation stop operation of the water pipe is interlocked, when the detection body detects the stopper body and closes the water spray valve via the interlock mechanism, the rotation control unit interlocks with the water spray pipe. The rotation is stopped and the winding drum of the wire winding unit is also stopped.
[0043]
Therefore, it is possible to prevent the occurrence of a problem that the wire is wound in a state where it is difficult to wind the winding drum, and it is possible to easily perform the wire drawing work when the unmanned water truck is driven by unmanned watering again. Watering work efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of an unmanned water truck equipped with an automatic stop device according to the present invention.
FIG. 2 is a sectional side view of the unmanned water truck.
FIG. 3 is an explanatory plan view of the unmanned water truck.
FIG. 4 is an explanatory diagram of an automatic stop device.
FIG. 5 is an explanatory plan view of an unmanned water truck as another embodiment.
[Explanation of symbols]
A Unmanned water truck M Automatic stop device 1 Body frame 2 Front wheel 3 Rear wheel 4 Sprinkling part 5 Power transmission part 6 Wire winding part 7 Wire alignment part 9 Detector

Claims (1)

The body frame is provided with a watering part that is connected to the water supply hose through a watering valve, and the watering part is provided with a watering pipe that rotates by the reaction of the watering pressure while watering from the tip part, and a wire is connected to the watering pipe. A wire take-up unit that winds up is linked and connected, and the base end side of the wire is connected to a take-up drum provided in the wire take-up unit, and a stopper body is attached to the front end side portion of the wire. A detecting body for detecting the stopper body is provided, and an interlocking mechanism is interposed between the detecting body and the watering valve, and the detecting operation of the detecting body and the closing operation of the watering valve are interlocked by the interlocking mechanism. In an unmanned water truck,
The sprinkler is provided with a rotation control unit that controls the rotation of the sprinkler pipe, and an operation mechanism is interposed between the rotation controller and the sprinkler valve to block the sprinkler valve and An automatic stop device for an unmanned water truck characterized by interlocking with a rotation stop operation.

Images