JPS61192232A - Liquid droplet apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 1) Industrial application analysis - Automatic watering of garden trees, flower beds, potted flowers, fertilizer supply - Automatic watering in hydroponic cultivation, nutrient solution supply, automatic watering of farmland , As a nutrient solution supply/humidifier/As a water supply device for a humidifier/As a cooling device for sprinkling water on the roof in summer/As a device for injecting chemical solutions into tanks, etc. 2) Traditional branching techniques/Conventional use for ornamental plants at home In most cases, watering is done manually with a hose or automatically using a combination of sprinklers, timers, and solenoid valves.

・For garden trees, flowerbeds, farmland, etc., there is a watering method in which a PVC pipe or hose is routed from the water supply and small holes are made at the plants, but if the pipe is long or there are many plants, the amount of water can be reduced near the water source. If the water is too far away, water will not come out. Moreover, piping is troublesome and indoors, the piping spoils the aesthetics.

・To continuously water small amounts of water, it is necessary to make the oriais very small or squeeze it with needle pulp, but even this requires too much water for potted flowers, and it is difficult to adjust the very small amount of water. Ta. In addition, there was an inconvenience that it was easy to get clogged with dirt and the like.

- Micro-volume pumps and control valves are very expensive, so
There are no examples of this being put to practical use for this purpose.

3) Problems that the invention aims to solve: It does not use expensive electrical equipment such as timers, solenoid valves, pumps, expensive pressure reducing valves, or micro-acid adjustment valves, but is small and low cost and can be connected directly to the water supply or tank. 0.
Despite the wide range of hydraulic pressure fluctuations from 1 to 5 to 2/c+y2, it is possible to maintain a substantially constant extremely small flow rate.

With conventional technology, these points cannot be solved by Xiaomi.

4) Means and action to solve the problem - An elastic body such as rubber is placed inside the case, and one side of the elastic body receives water pressure, while the other side is exposed to the atmosphere. If the small gap in the elastic body becomes proportionally smaller as the elastic body deforms due to the water pressure applied to it, a constant amount of water can be dripped into the atmosphere regardless of the water pressure. For manual adjustment, this elastic body can be manually tightened using a screw or the like. If the diameter of the case is about 10ww, the inner diameter can be made about 8xx, so the cross-sectional area open to the air can be several shoulders 2, and the water pressure of several ft H/c is several hundred 2.
Since this force can be applied to an elastic body, the elastic body can also be made of ordinary rubber. (Experimented) Normally used water pressure is wide from 0.1 to 5*/cx2, and the drip cost is extremely small at several cc/+n'+n, so the corresponding orifice 1 is several microns to several hundred microns. Although the gap is extremely small, it is only necessary to control the gap between the outer circumference of the elastic body and the inner surface of the case, and since the outer circumference of the elastic body is as long as several centimeters, it can be manufactured easily.

The connection between the tube and the case of the micro-water dripping device has recently been widely used in pneumatic and hydraulic equipment, and if you use a commercially available small one-touch fitting, you can simply push the connection without using any tools. Since it can be easily cut with a , it can be installed freely even if the distance between plants is about 90 degrees. Also, changes can be made easily.

As described above, it can be manufactured using inexpensive materials.

5) Example of watering potted flowers from Fill to PiI? 3 will be used in the following explanation. Fig. 1 shows the appearance of an example in which several potted flowers are automatically watered using a water tank.

It is also possible to directly connect a nylon tube 2 with an outer diameter of about 41 mm to a water faucet.

Fig2 is an external view of the single unit, FiI? 8 is a sectional view of this single unit. It consists of a one-touch joint 3 that can connect a tube with one touch, a case 4, an adjustment screw 7 that manually adjusts the dripping water m, an elastic body 9 inside the case, a bottle 8 that presses the elastic body, and an installation rod 5.

The operation and principle of this unit will be explained below with reference to sectional views.

The water supplied by the push-in joint 3 applies pressure to the bottle 8 on the upper part of the elastic body, and at the same time passes through the small opening between the outer periphery of the elastic body 9 and the inner surface of the case 4, and passes through the small opening between the bottle screw part and the small hole.
? A regular infusion is administered from Jl to the outside via the play in the Motoichi adjustment screw. The force with which the elastic body 9 is pushed downward is the product of the cross-sectional area of the bottle open to the atmosphere and the water pressure. If the elastic body is made of general silicone rubber, it will be possible to deform the elastic body to about 0 to 0.5 when subjected to a load of several hundred grams. Normally, the amount of water dripped increases as the water pressure increases, but with the structure shown in Fig.9(n), as the water pressure increases, the elastic body 9 deforms and the gap becomes smaller as shown in FiH9(b), so the amount of water remains constant. The elastic force and shape of the elastic body may be determined so that the area of the gap and the amount of displacement of the elastic body are proportional to the water pressure. If you want to change the amount of dripping, just turn the adjustment screw and forcibly deform the elastic body.

6) Effects of the Invention According to the present invention, the parts structure is simple and the precision of individual parts can be maintained for many applications where the stable supply of a small amount of liquid conventionally required extremely high costs. No need for it, it's super small and very cheap!9! ! It is very practical because it can be manufactured easily.

If there is a need to supply an extremely small amount of liquid with ultra-high precision and in a fully automated manner, it is natural that it would cost a considerable amount of money, but in general, such applications are extremely rare. Conceivable. However, although a certain degree of accuracy is required, as well as stability and reliability, it is thought that there is a large market where half-white rph <--rather than fully automatic is sufficient. According to the present invention, it is possible to supply these applications at a very low cost. For example, the present invention is effective not only for plants but also for humidifiers. A humidifier requires a relatively expensive water storage tank and water supply device, and also requires a humidifying element. If the present invention is applied, the humidifying element becomes unnecessary, or only a combination of very inexpensive paper or water-absorbing polymer is required.

Figure 1 shows an example of the use of this patent in which water is supplied to the needle hole using a water tank (= I state). Figure 2 shows the appearance of the single unit
FIG. 3 shows the cross-sectional structure of a single unit, in which a) shows a state in which the supplied water pressure is 0, and b) shows a state in which water pressure is applied and the elastic body is deformed.

1... Water tank, 2... Water supply tube, 3... One-touch joint, 4... Case, 5... Installation frame 6...
Needle hole, ma... water amount adjustment, 8... pin, 9...
Elastic Body Procedure Amendment June 12, 1985 1, Case Description 1985 Patent Application No. 31748
No. 2, Name of the invention 3, Relationship with the @Correcter case Patent applicant

Claims (1)

[Claims] In a case where a part of the case has a connection port for supplying liquid such as water, and a small hole is opened to the atmosphere in another part, there is a passage in which the liquid flows from the liquid connection port to the small hole. , a partition plate that allows only a small amount of liquid to pass through is interposed, and a protrusion is provided on the small hole side of this partition plate with a diameter slightly smaller than the small hole diameter and long enough to pass through the small hole and exit the case, Furthermore, the micro constant flow droplet device has an elastic body that is deformed by hydraulic pressure between the partition plate and the small hole.