JPS581179Y2 - irrigation equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of irrigation equipment mainly used in the field of greenhouse horticulture, and is an irrigation system that is designed to divide a facility into arbitrary sections and water each section sequentially. In this method, irrigation time can be arbitrarily set for each section, sections that do not require irrigation can be arbitrarily skipped, and irrigation can be started from any section. The purpose is to make it easy to construct, maintain and manage, and to be able to obtain it at a low cost.

In general, in horticultural cultivation facilities such as greenhouses, it is desirable to irrigate the entire facility at once, regardless of the size of the facility. Since it would be necessary to make a big loss of various equipment, in reality the cultivation area is divided into several sections,
Conventionally, a method of sequentially applying water to each section has been commonly used.

Specific methods include installing solenoid valves in each compartment and switching the solenoid valves sequentially using a control device, or, in small-scale facilities, manually opening and closing the valves sequentially. Many methods are used.

On the other hand, since each cultivated product is different depending on its growth situation, environmental conditions, etc., it is desirable to be able to arbitrarily adjust the amount of watering for each section.

By arbitrarily setting the amount of water for each plot, it is possible to adjust the variation in the growth status between each plot, making it possible to stabilize the quality. In order to set the amount of water for each use, the control mechanism becomes complicated, which not only increases the cost of the entire device but also increases the chance of failure. This results in various inconveniences, such as the fact that repairs cannot be made without the hassle of other people.

In facility cultivation, malfunction of the irrigation system is a problem, and if water is missing for even one day due to a malfunction of the irrigation system, it will seriously affect the growth of the plants.

Therefore, in order to prevent the occurrence of malfunctions, it is possible to create an irrigation system that has a low failure rate and is inexpensive, even at the expense of the above-mentioned uneven growth of cultivated plants. Generally, a device that uniformly applies water at a fixed amount to the area, or a device that manually opens and closes a valve is selected.

However, since the conventional device itself has a complicated control mechanism, it is difficult to maintain and manage the valve, and manual valve opening and closing operations must be performed periodically at fixed time intervals. The reality is that irrigation requires hard labor, but it is inexpensive, has a low failure rate, is easy to operate and maintain, and can be used to arbitrarily set irrigation times according to the growth status of each plot. There has been a demand for irrigation systems that can do this for a long time.

The present invention is an attempt to improve the conventional situation and demands as described above, and as mentioned above, it is possible to arbitrarily set the amount of water for each section, and it also eliminates the need for irrigation. The above-mentioned equipment can be easily constructed, maintained and managed at a low cost. This is its characteristic.

That is, the present invention includes a spring-type timer, a clutch plate that controls the balance that regulates the return speed of the spring spring of the timer, and a notch on a part of the periphery so that the clutch plate rotates in conjunction with the timer. An appropriate number of pieces consisting of a cam plate, a stopper that has a retaining part that can be held in the notch and is brought into elastic contact with the outer periphery of the cam plate, and a microswitch provided close to the free end of the stopper. When the units are connected in a series circuit and the stopper is in elastic contact with the periphery of the cam plate, the switching valve of the unit is open, and the stopper is engaged in the notch of the cam plate. The gist of this is that the units are constructed so that when they are assembled, they are connected to adjacent units.

Hereinafter, specific embodiments of the present invention will be described with reference to the illustrative drawings.

In the drawing, 1 is a conventionally known wind-up type timer, 2 is a support frame with appropriate scales displayed on its surface, and 3 is supported rotatably in the front and rear directions with respect to the support frame 2. The shaft 4 is a long spring attached to one end of the shaft 3, and 5 is a spiral spring whose winding center is fixed to the shaft 3, while its free end is connected to a support pin 5 fixed to the support frame 2. , 6 is a main gear similarly mounted on the shaft 3, and 7 is a group of small gears provided to rotate in conjunction with the main gear 6.

Reference numeral 8 denotes a balance which is engaged with the terminal gear 7 of the small gear group 7 so as to be capable of pendulum movement, and the balance 8 has a free end of a clutch plate 9, one end of which is rotatably connected. In addition to being brought into contact with each other, it is normally brought into elastic contact with the balance wheel 8 through the biasing force of the spring 10, so as to appear to prevent the pendulum movement of the balance wheel 8.

Reference numeral 11 denotes an electromagnet provided close to the free end of the clutch plate 9, and one end of the electromagnetic coil S wound around the electromagnet 11 is connected to a terminal A of a microswitch 16, which will be described later. .

Reference numeral 13 denotes a cam plate installed near the rear end of the shaft 3, and a notch 13 is provided at an arbitrary position on the periphery of the cam plate 13.

14 has its base rotatably supported, and has an engaging portion 14 at its free end that can be held in the notch 13.
The engaging portion 14 of the stopper 14 is always in elastic contact with the peripheral edge of the cam plate 13 through the biasing force of the spring 15.

Further, the stopper 14 is provided with a microswitch 16 close to its free end.

The microswitch 16 is provided with terminals A, B, and C. Terminal C is connected to a power source E, terminal B is connected to an adjacent unit, and terminal A is connected to an electromagnetic coil S1 solenoid valve ■ and an indicator lamp. Connect each L in a parallel circuit.

A convex portion 16 is normally projected from the microswitch 16 so that it can freely protrude and retract as if it were biased toward the stopper 14 via a self-returning spring (not shown), so that the stopper 14 is attached to the periphery of the cam plate 13. When the convex portion 16 is in elastic contact with the microswitch 16 (that is, the state shown in FIG. 2), the convex portion 16 is pressed into the microswitch 16 to connect the terminals C and A, and the stopper In the state where the engaging portion 14 of 14 is engaged with the notch 13 (that is, the state shown in FIG. 3), the convex portion 16 is released from the pressure of the stopper 14, and the terminals C and B are connected. to intimidate.

However, in the present invention, the above configuration is used as a unit U.
As shown in FIG. 4, the required number of units U are connected.

In the detailed drawing 4, (PJ) indicates a plug socket.

As a method for operating the clutch plate 9, it is possible to selectively use a magnet method, a solenoid method, a bimetal method, or a thermal method as appropriate.

Additionally, if a timer is separately connected to the plug outlet (PJ) part, it is possible to automatically start the device at a certain time.

In the above embodiment, a self-returning spring (not shown) for the convex portion 16 and a presser 15 for pressing the stopper 14 are provided separately.
It is also possible to use the self-returning spring of 6.

The above embodiment describes a method in which the switching valves of each unit U are opened and closed by opening and closing the solenoid valves through the microswitch 16 as an energy source, that is, a method using electricity. However, the energy source for opening and closing the switching valves of each unit U is not limited to the method using the electric circuit in the above embodiment, but may also include other methods using air pressure, water pressure, etc. is also possible.

FIG. 5 is a circuit diagram showing a method of using air pressure,
In the same drawing, P is the compressor, (KV) is the switching valve, (AL) is the air lamp, (A, S) is the air cylinder clutch, (AV) is the air operation valve, (3■) is the three-way switching valve. are shown respectively.

Next, its effect will be explained.

FIG. 3 shows the timer 1 in a stopped state. In such a stopped state, the balance wheel 8 is pressed by the free end of the clutch plate 9 through the bias of the spring 10. There is also a stopper 14 in the notch 13 of the cam plate 13.
The engaging portion 14' is in an engaged state through the biasing force of the spring 15.

Since the stopper 14 is biased toward the cam plate 13 via the spring 15 like a lever, the convex portion 16' of the microswitch 16 is biased outwardly by the bias of the self-returning spring. That is, the terminal C that protrudes in the direction of the cam plate 13 and connects to the power source E and the terminal A that connects to the electromagnetic coil S and the electromagnetic valve ■ are electrically disconnected, that is, the terminal C is a terminal that connects to the adjacent unit. It is connected to B.

However, when timer 1 is set at the stop position as shown in FIG.
When the knob 4 is rotated in the direction of tightening the mainspring spring 5, the shaft 3 and the cam plate 13 are turned in the same direction as the rotation direction of the mainspring spring 5, respectively, by the same angle as the operating angle of the knob 4. As the cam 13 rotates in this manner, the engaging portion 14' of the stopper 14, which has been engaged in the notch 13 through the bias of the spring 15, It comes off from the notch 13 and rides on the outer peripheral edge of the cam plate 13.

However, as the engaging portion 14' rides on the outer peripheral edge of the cam plate 13 like a lever, the free end of the stopper 14
It is forcibly pushed down toward the microswitch 16 against the bias of the spring 15, and the convex portion 16' protruding from the microswitch 16 is pushed down.

When the convex portion 16' is forcibly pushed down via the stopper 14, the terminal C connected to the power supply E and the terminal A connected to the electromagnetic coil S and the electromagnetic valve ■ are connected in the microswitch 16. , a state of electrical connection can be obtained.

FIG. 4 shows n units U1. ■J2. While electrically connecting U3...(IJn), the plug outlet (
PJ) is removed and electrically turned off, each unit U1. U2. U3...(Un), for example, in the state of 11 where the second unit U2 is set to the stopped state as shown in FIG.
, U3...(Un) are rotated to set an arbitrary time as shown in Fig. 2.In such a set state, , when the plug outlet (PJ) is connected and turned on electrically, the microswitch 16 in the first unit U1 is in the state shown in FIG. 16' is pressed through the stopper 14 and the terminals C and A are connected, so the current from the power source E flows through the terminals C and A to the electromagnetic coil S side, causing the electromagnet 11 to become magnetic. acts, and the clutch plate 9 is drawn toward the electromagnet 11 against the bias of the spring 10 through the magnetism of the electromagnet 11.

As the clutch plate 9 is drawn toward the electromagnet 11 in this manner, the balance wheel 8, whose movement has been restricted until now, is released.

When the balance wheel 8 is released, the pinion 7, the main gear 6, and the cam plate 13 are moved in the return direction of the mainspring spring 5 through the pendulum movement of the balance wheel 8, respectively, through the return action of the mainspring spring 5. It rotates toward the point and begins counting the set time.

On the other hand, the electromagnet 11 is energized via the electromagnetic coil S1,
At the same time as the timer 1 starts counting the set time, the solenoid valve 1 and the indicator lamp L1, which are connected in parallel with the electromagnetic coil S1, are also energized to perform watering, and the indicator lamp L1 is turned on. .

However, after the preset time has elapsed, the cam plate 1
3 returns to the old position, the engaging portion 14' of the stopper 14, which had been in pressure contact with the peripheral edge of the cam plate 13 against the bias of the spring 15, is cut off by the bias of the spring 15. Engaged in the notch 13', the spring spring 5 stops rotating the small gear part 7 and the main gear 6 in the return direction, while the stopper 14 is urged in the direction of the cam plate 13 as described above. As a result, the convex portion 16', which had been pressed by the stopper 14, is released from the pressed state and protrudes outward through the action of the self-returning spring.
By protruding outward, terminals C and A
The connection state between the terminals C and B is switched from the connection state between the terminals C and B to the connection state between the terminals C and B.

As a result of the terminals C and A being disconnected, the electromagnet 11 in the first unit U1 loses its magnetism, and the clutch plate 9 is again biased by the spring 10 to rotate the balance 8.
While pressing against the side to restrict the pendulum movement of the balance wheel 8, the solenoid valve 1 is closed, watering is stopped, and the indicator lamp L1 is extinguished.

As a result of the connection between terminals C and B as described above, the current from power source E will flow to the second unit U2, but unit U2 has timer 1 set in advance as described above. The stopped state as shown in Fig. 3 can be achieved without any
That is, since the terminals C and B are set to be connected, in the unit U2, the electromagnetic coil S2, the electromagnetic valve V2, and the indicator lamp L2 are not energized, that is, irrigation is performed. Without any problems, the current is passed directly to the third unit U3 side, passing through the circuit.

Then, in the third unit U3, the n-th unit (
The reef water continues to flow in the Un) direction.

The present invention consists of the above-mentioned configuration. By having the above-described configuration, it has become possible to arbitrarily set the irrigation time for each section according to the growth status of the cultivated products, and For plots that do not require water, it is now possible to skip over that plot and irrigate the next plot, and to start irrigation from any plot.

Moreover, while the present invention achieves the above-mentioned revolutionary effects, its structure and operation are extremely simple, and due to its simple structure, the incidence of failure is low.
It is easy to maintain and manage, and can be installed at low cost, making it extremely useful compared to conventional seed irrigation equipment.

[Brief explanation of the drawing]

Figure 1 is a side view of the embodiment of the invention, Figure 2 is a rear view showing the time setting state, Figure 3 is a rear view showing the stopped state, Figure 4 is the electrical circuit diagram, and Figure 5 is the pneumatic pressure. FIG. 1... Timer 2... Support frame, 3.
・・・Shaft, 4... Housing, 5...
...Spring spring, 5'...Support pin, 6.
...Main gear, 7...Small tooth army, 7'...
...Terminal gear, 8... Balance wheel, 9...
...Clutch plate, 10...Spring, 11...
...Electromagnet, 13...Cam plate, 13'...
...Notch, 14...Stopper, 14'...
...Engaging part, 15... Spring, 16...
...Micro switch, 16'...Protrusion, A,
B, C... terminal, E... power supply, S...
...Electromagnetic coil, L...Indication lamp, ■...
...Solenoid valve, (PJ) plug outlet.

Claims (1)

[Scope of utility model registration request] A spring-type timer, a clutch plate that controls the balance that regulates the return speed of the spring of the timer, and a cam plate that has a notch in a part of its periphery so that it rotates in conjunction with the timer. A suitable number of units are connected in series, each consisting of a stopper that has an engaging portion that can be engaged with the notch and is brought into elastic contact with the outer periphery of the cam plate, and a microswitch that is provided close to the free end of the stopper. When connected by a circuit and the stopper is in elastic contact with the periphery of the cam plate,
A irrigation device configured to be connected to an adjacent unit when the switching valve of the unit is in an open state and the stopper is engaged in the notch of the cam plate.