JP3009592U - Watering nozzle head for plants - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a water spray nozzle head for plants, which can quickly and softly spray a large amount of water. [Structure] 400 to 900 small holes S having a diameter of 0.4 mm to 0.7 mm and having the same diameter are concentrically formed on the entire spherical disk surface T having a diameter of 35 mm to 50 mm at substantially equal intervals and perpendicular to the surface. At the same time, the back surface side open end v of each small hole S is provided with a mortar-shaped taper K and widened, and the water spray surface cover portion 1 is screwed to the bottom surface side f, and the inner wall has a central axis m. A conical trumpet mouth portion 2 having a vertical apex angle θ = 25 ° to 35 °, which is composed of surfaces M1, M2, and M3 inclined with respect to the above, and screwed into a top through hole G of the trumpet mouth portion 2. Length L = 10 cm to 3 for connecting and fixing one end t1 by means C and inserting a hose H at the other end t2
It is composed of a cylindrical tube 3 of 0 cm.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a plant watering nozzle head that is attached to the end of a hose connected to a water plug or an electric pump when watering a plant planted in a pot or the ground or a sown seed. In particular, the present invention relates to a watering nozzle head for plants, which is capable of instantly pouring a large amount of water into a target plant softly.

[0002]

[Prior art]

 Traditionally, watering of plants has generally been done by home gardening, and in the case of small scales, it is generally done by rain dew. In the case of large-scale commercial horticulture, a nozzle head with many small holes attached to the end of the hose is used to spray water directly with a water tap or an electric pump like a shower.

The rain dew pouring port (head) is a conical trumpet port, and usually has an opening surface in which several dozen to 100 small holes are formed on one surface.

When using the above-mentioned rain dew, water is sprinkled so that the tub part is tilted to pour naturally from directly above, and in the case of the water tap or the hose connected to the electric pump, the water pressure of the water tap is 1 to 5 m away. Sprinkle water in a parabola diagonally upward from the place.

Both of them have an advantage that they can be sprayed evenly in a direction of several tens of centimeters like a shower.

[0006]

[Problems to be solved by the device]

 However, in the case of commercial gardening as well as domestic gardening, conventional rain dew is not efficient, and if water is efficiently drained with a hose, the force of the water discharge must be increased. Even if water is evenly sprinkled through the small holes, the force of the shower will become considerably stronger, and the sand on the surface will turn up, seeds may leak out, and the petals and leaves of the plant may be damaged. There was a problem.

In this respect, there is a nozzle head that sprays softly like mist, but this is not efficient for commercial gardening because it takes time to perform sufficient watering and is not efficient.

In addition, a general shower nozzle head is rough-processed, and many small holes formed in the head water spray surface have irregular diameters, or a vertical hole is simply drilled in a thin metal opening end surface. The trumpet mouth part has a cone-shaped apex angle of about 90 degrees, and most of them are suddenly wide open from the grip part.

Therefore, in the above-mentioned conventional shower nozzle head, the water flow inside the nozzle head is not smooth and collides with the inner wall to generate a swirl flow, so that the force of the water discharge is different in each small hole, and the direction of water discharge is different. It may happen that the holes are not aligned.

[0010] In the above-mentioned state, the water lines of the water sprinkles overlap each other after coming out of the small holes and lose the original effect of uniform water sprinkling in the shower, and the damage to the plants is also great. Become.

The present invention has been made in view of the above circumstances, and can sprinkle a large amount of water instantly and softly, and can be used for commercial gardening as an extremely efficient watering plant. An object is to provide a nozzle head.

[0012]

[Means for Solving the Problems]

 According to the present invention, 400 to 900 small holes having the same diameter of 0.4 mm to 0.7 mm are formed concentrically on the entire surface of a spherical disk having a diameter of 35 mm to 50 mm at substantially equal intervals and perpendicular to the surface. At the same time, the back side opening end of each of the small holes is spread in a mortar-shaped taper, and the water side cover is screwed to the bottom side and the inner wall is inclined with respect to the central axis. A conical trumpet mouth portion having a hollow apex angle of 25 to 35 degrees, one end of which is connected and fixed to the top through hole of the trumpet mouth portion by a screwing means, and a hose is attached to the other end. The above object is achieved by providing a watering nozzle head for plants characterized by comprising a cylindrical tube having a length of 10 cm to 30 cm.

[0013]

[Action]

 Since the inner wall of the water spray nozzle head for plants in the present invention is constructed by a surface inclined with respect to the central axis, and the trumpet mouth portion has a slender conical shape with an apex angle of 25 to 35 degrees, the inner wall of the nozzle head. There is no generation of vortex and uneven water pressure due to the collision with the water, and the water flow inside the nozzle head reaches the sprinkling surface cover extremely smoothly and uniformly.

Further, since the small holes for the shower have the same diameter and are concentrically arranged at substantially equal intervals, the number of the small holes is 400 to 900, which is several times as large as that in the conventional case. The total cross-sectional area of all small holes is several times that of the conventional method, and it is possible to instantly sprinkle water at an appropriate water pressure (soft momentum) without applying high pressure to the large volume of water used in each case. .

In other words, it is possible to instantly perform a large-volume watering with a soft mist between the thick mist-like spray and the conventional shower watering.

Furthermore, since the back-side open end of each small hole is widened in a mortar-like shape, the water flow of the water discharged after passing through the small hole is uniformly stabilized. In other words, the water flow is adjusted so that the water flow direction is perpendicular to the surface of the sprinkling surface and the water pressure is uniform, so that the water drops from all subsequent small holes do not intersect with each other and are poured onto the plant precisely. As it peels off, it can be watered extremely softly and does not damage the petals or leaves of the plant. In addition, the seeds that have been sown are not leaked out by turning up the sand on the pot or on the ground surface.

[0017]

【Example】

 Hereinafter, an embodiment of a water spray nozzle head for plants according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view and a vertical sectional view showing an embodiment of a watering nozzle head for plants according to the present invention, and FIG. 2 explains a structure in the vicinity of a small hole of a watering surface lid portion of the watering nozzle head for plants. It is a partial expanded sectional view for doing.

As shown in FIGS. 1 and 2, a plant watering nozzle head 10 (hereinafter, also simply referred to as a head) according to the present invention has small holes S 1 and S 2 having a diameter of 0.4 mm to 0.7 mm. , (Generally S) 400 to 900 are concentrically formed on the entire spherical disk surface T having a diameter of 35 mm to 50 mm at substantially equal intervals and perpendicularly to the surface. Sprinkling surface cover part 1 in which the back side opening end v is provided with a mortar-shaped taper K and widened, and a surface on which the sprinkling surface cover part 1 is screwed to the bottom surface side f and the inner wall is inclined with respect to the central axis m. A conical trumpet mouth portion 2 having a hollow apex angle θ = 25 to 35 degrees composed of M1, M2, and M3, and one end t1 at a screwing step C in a top through hole G of the trumpet mouth portion 2. Is fixed and the hose H is attached to the other end t2. Length L = A cylindrical tube 3 of 0cm to 30 cm, in being configured.

The first feature of the head 10 is that the number of small holes S provided on the spherical disk surface T of the sprinkling surface lid portion 1 is extremely larger than that of the conventional shower nozzle head.

The total cross-sectional area of all the small holes S is 2 to 4 times that of the conventional one, which is larger than the maximum supply water amount per unit time (larger capacity than the conventional one) of a water faucet or electric pump used in commercial gardening. Even if water is poured, the pressure in the head does not become high, and it can be sprayed instantly with moderate water pressure (soft momentum).

In other words, when the head 10 is attached to the tip of the hose H connected to the water tap or the electric pump to sprinkle water, when the plug is fully opened and the supply amount is maximized, the small hole S is pushed with appropriate force. Water can be softly and uniformly watered in a 30 cm to 40 cm square of a potted ground or a ground planted 1.5 m to 2.0 m away. In addition, the spherical disk surface T of the sprinkling surface lid portion 1 is a spherical surface to the extent that the sprinkling surface spreads in a direction of 30 cm to 40 cm at a distance of 1.5 m to 2.0 m from the head 10 as described above. , A small curvature that is almost flat.

Conventionally, it was necessary to squeeze the plug to adjust the amount of water supplied in order to obtain an appropriate amount of water flow. However, in the present head 10, the plug is fully opened to perform watering at the maximum amount of water supplied, so that individual water supply is possible. The plants will be watered instantly, and the sprinkling work will proceed more efficiently one after another.

Of course, the maximum amount of water supplied to the water tap to be used differs depending on the case depending on the thickness of the water pipe and the water pressure. Therefore, with one head, the momentum of water discharge changes depending on the case, but there are several types of small holes and diameters of the sprinkling surface cover 1 in advance (for example, 900 small holes with a diameter of 0.4 mm and 590 small holes with a diameter of 590). By preparing and exchanging individual pieces, ...), efficient water sprinkling is possible in response to various cases.

Next, the second characteristic of the head 10 is that various measures have been taken in order to realize soft watering.

Of course, the soft watering means that the individual water streaks, which are released from each small hole S and draw a parabola with a proper force, do not cross each other or connect with each other, so that the plants are evenly distributed. The conditions for this are: (a) The direction of water discharge should be uniform. That is, the direction of water discharge from each small hole S is perpendicular to the spherical disk surface T of the sprinkling surface cover 1. (B) The force (pressure) of the water discharged from each small hole S must be constant.

In this respect, the conventional rain dew or shower nozzle head has a rough interval between the small holes and the processing accuracy as pointed out as a problem, and the opening angle of the trumpet mouth portion is large at about 90 ° and suddenly opens greatly. As a result, the water flow was disturbed, the pressure was uneven, and the above soft watering conditions were not met in many cases.

In the present head 10, first, (1) as shown in FIG. 2, the back side opening end v of each small hole S is widened by providing a mortar-shaped taper K. Further, in the present head 10, the taper K is such that the small hole in the outer peripheral portion has a large taper area, and the small hole closer to the center has a smaller taper area. This is because a small hole near the center (for example, S7) has a water flow direction inside the head (arrow W1) that is substantially the same as the water discharge direction, whereas a small hole near the center (for example, S1) has a water discharge direction and a water flow direction ( This is to prevent the water flow from becoming weaker than that in the central part because the water flow is turbulent and the water flow to each small hole S is adjusted to be constant. The taper K also has the effect of simultaneously rectifying and improving the directionality of the water discharge.

Further, (2) the inner wall surface M3 on the bottom surface side f and the inner wall surface M1 on the top through hole G side of the cone-shaped trumpet mouth portion 2 absorb pressure to reduce turbulence of the water flow as much as possible. In addition, small inclination angles α = 30 ° and β = 10 ° with respect to the central axis m are set. Further, the apex angle θ of the trumpet opening 2 is also set to 30 °, which is smaller than that of the conventional shower nozzle head.

With the above structure, the water flow smoothly flows without stagnating, the pressure reaction becomes small, and reaches the small hole S with a constant and relatively weak water pressure.

(3) In the present head 10, all parts are made of metal, and are manufactured by performing metal processing with high precision. In particular, in order to improve the direction of water flowing out from the small hole S, the sprinkling surface cover part The thickness T of the spherical disk surface T of No. 1 is about 0.5 mm to 1 mm thicker than before.

In addition, by processing and manufacturing with high precision, and by making the screwing portion between the sprinkling surface lid portion 1 and the trumpet mouth portion 2 have a taper screw structure, the connection that was conventionally required for preventing water leakage is made. Part O-rings and other packings are unnecessary in the head 10.

Needless to say, the head 10 is not limited to metal, and may be synthetic resin as long as the processing accuracy and strength can be secured.

The top through hole G of the trumpet opening 2 and the screwing means C of the cylindrical tube 3 are formed by a general method of screwing with the flat knurls 5 in this embodiment, but of course, other methods may be used. .

Further, the cylindrical tube 3 serving as a grip has a gradually reduced outer diameter toward the tip t1 side and t2 side, and the outer diameter of the tip portion t1 is reduced to about 15 mm while the grip portion is about 20 mm. There is. This is because the direction of water discharge is improved by processing and manufacturing with high precision, the pressure recoil is reduced, and water leakage is prevented by screwing the trumpet mouth 2 and the cylindrical tube 3 together. The O-ring of the connecting portion and other packing required for the above are not necessary in the present head 10.

Further, the outer diameter of the tip t2 is reduced to about 12 mm. This is to make it possible to accommodate various inner diameters of general-purpose rubber hoses on the market and to easily insert them.

Due to the above-mentioned characteristic structure, the plant watering nozzle head 10 according to the present invention can adjust the water flow to make the water jetting direction perpendicular to the watering surface and the cover surface T, and the water pressure becomes uniform. Since the water from all the small holes S of the above can be poured into the plant evenly and without being crossed, extremely soft watering is possible, and the petals and leaves of the plant are not damaged. In addition, the seeds that are sown are not leaked by flipping up the sand in the pot or on the ground surface.

[0038]

[Effect of device]

 The sprinkling nozzle head for plants according to the present invention is constructed as described above and therefore has the following effects.

(1) It has an excellent effect that a large amount of water can be sprinkled in an instant and extremely efficient watering is possible even for commercial gardening.

(2) It has an excellent effect that it does not damage the petals and leaves of the plant and does not flip up the sand covering the sown seeds because it showers as an extremely soft shower.

[Brief description of drawings]

1 is a side view and a vertical cross-sectional view showing an embodiment of a watering nozzle head for plants according to the present invention.

FIG. 2 is a partially enlarged cross-sectional view for explaining a structure in the vicinity of a small hole of a water spray surface cover portion of the water spray nozzle head for plants of the embodiment.

[Explanation of symbols]

 1 Sprinkling Surface Cover 2 Trumpet 3 Cylindrical Tube 5 Flat Knurl 10 Water Sprinkling Nozzle Heads for Plants S, S1, S2, ... Small Hole T Spherical Disk Surface v Back Side Open End K Taper m Center Axis C Screwing Means H Hose Inclination angle of α plane M3 Inclination angle of β plane M1 θ Vertical angle

Claims (1)

[Scope of utility model registration request] 1. 400 to 900 small holes having the same diameter of 0.4 mm to 0.7 mm and having a diameter of 35 mm to 50 mm
The perforated circular disk is concentrically formed on the entire surface of the spherical disk at substantially equal intervals and perpendicular to the surface, and the back side opening end of each of the small holes is tapered and expanded in a mortar shape, and A hollow apex angle of 25 degrees to 3 with a water surface lid screwed to the bottom side and an inner wall formed by a surface inclined with respect to the central axis.
A conical trumpet mouth portion having 5 degrees, and a cylindrical tube having a length of 10 to 30 cm, one end of which is connected and fixed to the top through hole of the trumpet mouth portion by a screwing means and a hose is attached to the other end. A watering nozzle head for plants, which is composed of