JPH0448846Y2 - - Google Patents

Description

[Detailed description of the invention] <<Industrial application>> The present invention relates to a liquid spraying device that automatically travels inside a plant growing house such as a gardening house to spray chemical solutions, water, etc. The present invention relates to a liquid dispersion device in which a liquid dispersion device is movably positioned on a disposed traveling guide member.

《Prior Art》 In recent years, cultivation methods using plant growth greenhouses have shown remarkable progress. In preparation for this, it is necessary to frequently spray chemical solutions, sprinkle water, etc. However, spraying chemicals inside a high-temperature greenhouse is an extremely poor environment, and since the greenhouse is tightly closed, the chemicals can be inhaled by workers, which poses direct health hazards.
Furthermore, in the chemical spraying work performed manually, the work inevitably becomes uneven and cannot be completed completely. Accordingly, there is an apparatus disclosed in, for example, Japanese Unexamined Utility Model Publication No. 62-59158, which can automatically travel within a greenhouse and automatically spray various liquids.

In this system, a guide rail is arranged along the length of the upper part of the plant growing house, and a flexible liquid guide tube of approximately the same length as the guide rail is connected and housed in a ring within the guide rail. A liquid supply port is provided at the connection part of the tube, and this is fixed at approximately the center in the longitudinal direction of the rail, and a liquid sprayer is installed at approximately the center in the longitudinal direction of the tube, facing the supply port, to form an annular tube. The structure includes a pair of running bodies that are wound around the rails and run on the rails.

[Problem to be solved] Generally, multiple plant cultivation greenhouses are installed side by side, and each greenhouse is equipped with a liquid spraying device. In the conventional liquid dispersion apparatus described above, in which the dispersion device is fixed and the liquid guide tube is arranged at the upper part of the house, a liquid pressure pump is required because the liquid must be sent to a high position.
When multiple houses are installed side by side, the liquid supply pipe led out from the liquid pressure pump is branched and connected to each house, and a liquid supply valve is placed in each branch path, so that each house can be connected separately. Liquid spraying work can be performed independently.

However, in this case, the liquid supply valve must be opened and closed in accordance with the traveling timing of the traveling object, which is cumbersome when a manual valve is used as the liquid supply valve, and it is difficult to operate when a solenoid valve is used. has the problem of high cost.

<Means for Solving the Problems> The purpose of the present invention is to solve the above-mentioned problems and provide a valve opening/closing device that can control the opening and closing of a liquid supply valve at the same time only by the movement of a traveling body. For this purpose, the liquid supply valve is placed in the upper part of the house, and the opening/closing actuator is fixed to the valve shaft of the liquid supply valve that protrudes outside the valve case, and the opening/closing actuator of the liquid supply valve is placed in the moving area of the traveling body. The opening/closing operating tool is fixed to the moving body, and when the moving body moves to a predetermined position, the opening/closing operating tool contacts the opening/closing operating tool and switches the liquid supply valve open/closed. It is characterized by its composition.

<Operation> In the present invention, the liquid supply valve is placed at the top of the house, the opening/closing actuator is fixed to the valve shaft of the liquid supply valve protruding outside the valve case, and the opening/closing actuator of the liquid supply valve is attached to the traveling body. The opening/closing operating tool is fixed to the traveling body, and when the traveling body moves to a predetermined position, the opening/closing operating tool comes into contact with the opening/closing operating tool and opens/closes the liquid supply valve. Since the liquid supply valve is configured to be switched, the opening and closing of the liquid supply valve is controlled in conjunction with the movement of the traveling body, and the liquid spraying operation can be performed easily and reliably.

<<Embodiment>> The drawings show an embodiment of the present invention, with FIG. 1 being a partially vertical perspective view of the main parts, and FIG. 2 being an explanatory view showing the principle of the liquid spraying device.

In the figure, reference numeral 1 denotes a liquid guiding tube made of a flexible material, 2 a liquid supply port fixed to one end of the liquid guiding tube 1, 3 a liquid sprayer fixed to the other end of the liquid guiding tube 1, and 4 5 is a working trolley to which the liquid sprayer 3 is fixed; 5 is an adjusting trolley supporting a tension pulley 6 for absorbing slack in the liquid guiding tube 1; 7 is a working trolley 4; This drive device 7 is a drive device for moving the tow rope 8, and the tow rope 8 has one end fixed to the working trolley 4.
a pair of rope pulleys 9, 10 around which the
, a tension applying device 12 consisting of a weight fixed to the other end of the tow rope 8 , and a drive motor 13 connected to one rope pulley 9 .

The above components, except for the tensioning tool 12, are supported by guide rails 14 installed on the ceiling of the house. The guide rail 14 is shown in FIGS. 3 and 4.
As shown in the figure, the side wall 15 is made of a shaped steel formed to open upward at an opening angle of about 90 degrees, and the upper end of the side wall 15 is bent into a curled shape. A liquid guide tube 1 is arranged between the liquid supply port 2 and the working trolley 4.
is formed to be slightly longer than half the length of the guide rail 14.

As shown in FIG. 3, the working trolley 4 is formed so as to embrace the guide rail 14 from the outside, and the guide rail 1 is attached to the upper end of the left and right side walls 16.
Two pairs of wheels 17 fitted from above are pivotally supported on the upper edge of 4. Further, a relay pipe joint 18 is fixed to one side wall 16, and a liquid sprayer 3 is held between the lower ends of the left and right side walls 16.

As shown in FIG. 4, the adjustment traveling trolley 5 is formed so as to embrace the guide rail 14 from the outside, and is fitted into the upper end portions of the left and right side walls 19 from above on the upper edge of the guide rail 14. two pairs of wheels 20
is centrally supported. Further, a pair of tension pulleys 6 around which the liquid guiding tube 1 is wound and a pair of direction changing pulleys 11 around which the towing cable 8 is wound are rotatably supported on one side wall 19.

A liquid supply system for supplying liquid such as chemical liquid to the liquid spraying device having such a configuration includes a liquid supply valve 21 arranged corresponding to the movement area of both traveling carts 4 and 5.
and a pressure pump 22 that pumps the liquid to the liquid supply valve 21, and the liquid supply valve 21 is directly connected to the liquid supply port 2.

This liquid supply valve 21 is composed of a butterfly-shaped valve, and a valve actuator 25 composed of a right-angled isosceles triangular plate is fixed to the outer end of a valve shaft 24 protruding outside the case 23. It is fixed as a point. Then, a valve operating tool 26 (described later) is placed on the remaining apex portion.
Abutment pins 27 that come into contact with the carriages 4 and 5 are respectively erected so as to project into the running surfaces of the carriages 4 and 5. The valve operating tool 26 is formed of a triangular plate fixed to the end face of the adjustment traveling vehicle 5 on the work traveling vehicle 4 side.

In a state where the adjustment traveling trolley 5 is located at the center of the house, that is, in a standby state where the working traveling trolley 4 is located at one end of the house, the valve operating tool 26 is in contact with the valve operating tool 25. and liquid supply valve 21
The valve is closed to stop spraying the liquid from the liquid sprayer 3. When the adjustment traveling trolley 5 is moved from the center of the house, that is, when the working traveling trolley 4 is removed from the standby position, the valve operating tool 26 separates from the valve operating tool 25 and opens the liquid supply valve 21. A spraying liquid such as a chemical solution is sprayed from the liquid sprayer 3.

In the above embodiment, a case has been described in which the liquid supply port 2 and the liquid supply valve 21 are located approximately at the center in the longitudinal direction of the house, but the liquid supply port 2 and the liquid supply valve 21 are located at one end of the house ,
The valve operating tool 26 may be arranged on the working vehicle 4.

<<Effects>> As described above, in this invention, the liquid supply valve is placed at the top of the house, and the opening/closing actuator is fixed to the valve stem of the liquid supply valve that protrudes outside the valve case. By positioning the opening/closing actuator in a state where it enters the moving area of the traveling body, fixing the opening/closing operating implement to the traveling body, and moving the traveling body to a predetermined position, the opening/closing operating tool comes into contact with the opening/closing actuator. Since the liquid supply valve is configured to open and close in conjunction with the movement of the traveling body, the liquid supply valve is controlled to open and close in conjunction with the movement of the traveling body, making it possible to perform liquid spraying operations easily and reliably. I can do it.

Moreover, since the opening/closing control of the liquid supply valve is performed mechanically, failures and malfunctions are eliminated, and the liquid supply valve can be configured with an inexpensive manually operated valve, so it can be used as a liquid spraying device. cost can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with Fig. 1 being a partially vertical perspective view of the main parts, Fig. 2 being an explanatory view showing the principle of the liquid dispersion device, and Fig. 3 being a front view of a working trolley.
FIG. 4 is a perspective view of the adjustment traveling trolley. 1... Flexible liquid guiding tube, 2... Liquid supply port, 3... Liquid sprayer, 4, 5... Traveling body, 14
... Travel guide member, 21 ... Liquid supply valve, 23
... Valve case, 24 ... Valve shaft, 25 ... Opening/closing operating tool, 26... Opening/closing operating tool.

Claims (1)

[Scope of Claim for Utility Model Registration] A traveling guide member is arranged in the upper part of the plant cultivation house along the longitudinal direction of the house, a traveling body is supported by the traveling guide member so as to be freely movable, and a liquid sprayer is fixed to the traveling body. At the same time, in a liquid dispersion device configured by arranging a liquid supply port corresponding to the running plane of the traveling body and connecting the liquid supply port and a liquid sprayer with a flexible liquid guiding tube, supplying the liquid to the liquid supply port. A liquid supply valve that controls the amount of liquid supplied is placed at the top of the house, and an opening/closing actuator is fixed to the valve shaft of the liquid supply valve that protrudes outside the valve case. The opening/closing operating tool is fixed to the moving body, and when the moving body moves to a predetermined position, the opening/closing operating tool comes into contact with the opening/closing operating tool and opens the liquid supply valve. 1. An opening/closing device for a liquid supply valve of a liquid spraying device, characterized in that the device is configured to switch between opening and closing.