JPH064905Y2 - Watering nozzle - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a sprinkling nozzle that is connected to a hose and used for sprinkling water in a garden or the like. More specifically, the present invention relates to an improvement of the structure for adjusting the spraying form of the spray nozzle.

[Prior Art] Conventionally, as a sprinkler nozzle, for example, a nozzle hole is provided at a tip end and a hose connection part is provided at a rear end, and a main body cylinder through which water for sprinkling passes is operated to open / close and adjust the amount of sprinkler water from the nozzle hole. It is known that a rotating operation cylinder is screwed and assembled.

This conventional sprinkling nozzle adjusts the amount of opening of the gap through which the sprinkling water is ejected by rotating the rotating operation cylinder, and adjusts the sprinkling form such as water stoppage, diffusion shot, and direct shot.

[Problems to be solved by the invention] With the above-mentioned conventional water spray nozzle, it is not possible to form a coarse mist-like spray (not mist-like fine particles) form, and delicate water spraying such as water spray on garden plants. It has a problem that it cannot be used for

The present invention has been made to solve the above problems, and an object thereof is to provide a sprinkling nozzle capable of forming a spray form having a coarse mist.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a water spray nozzle according to the present invention has a nozzle hole at a front end and a hose connection portion at a rear end, respectively.
In a water sprinkling hose that is screwed into a main body tube through which water for sprinkling passes controls the opening and closing of water from the nozzle hole and the amount adjustment, the nozzle hole is opened in the head part connected to the rotary operation tube. The nozzle hole is made movable in the axial direction of the main body cylinder, two substantially semicircular stirring blades intersect each other at a predetermined angle, and a hole penetrating in the front-back direction near the intersection of both blades. The means which is characterized in that the opened core is provided in the main body cylinder so as to face the nozzle hole.

[Operation] According to the above-described means, the sprinkling water urged by the core into the swirl flow is directly ejected as a swirl flow when the distance to the nozzle hole is short, so that a coarse mist-like spray form is formed. Is achieved.

[Embodiment] An embodiment of the water spray nozzle according to the present invention will be described below with reference to the drawings.

1 to 5 show a first embodiment of a sprinkling nozzle according to the present invention.

In this embodiment, a structure including each member of the main body cylinder 1, the rotary operation cylinder 2, the head portion 3, and the core 4 is shown.

The main body tube 1 has a substantially cylindrical shape, and water for sprinkling passes through the inside thereof. At the rear end of the main body cylinder 1, there is provided a hose connecting portion 11 composed of a split sleeve 11a and a screw cap 11b, so that the hose H can be inserted and connected with tightening pressure resistance. There is. Further, an uneven handle 12 is provided on the outer peripheral surface of the main body cylinder 1 at the substantially central portion, and the handle 12 can be grasped by hand to hold the entire water spray nozzle and direct the injection direction. Further, a threaded portion 13 is provided on the outer peripheral surface near the tip of the main body cylinder 1 so that the rotary operation cylinder 2 can be screwed.
A stopper projection 14 for the rotary operation cylinder 2 is provided near the tip of the handle 12.

The rotation operation cylinder 2 has a substantially cylindrical shape with a diameter larger than that of the main body cylinder 1, and rotates and moves in the axial direction of the main body cylinder 1. A screw portion 21 is provided on the inner peripheral surface of the rotation operation cylinder 2,
It is adapted to be rotatably screwed and assembled with the screw portion 13 of the main body cylinder 1. Further, a retaining ring 22 is fitted to the rear end of the rotary operation cylinder 2 and is locked to the retaining projection 14 of the main body cylinder 1 to prevent the rotary operation cylinder 2 from falling off the main body cylinder 1.

When the rotary operation cylinder 2 is assembled to the main body cylinder 1, the retaining projection 14 is provided with a packing 5 for sealing.

The head portion 3 has a substantially cap shape, is fixed to the tip of the rotary operation cylinder 2, and operates integrally with the rotary operation cylinder 2. A nozzle hole 6 is opened on the extension line of the axis of the main body cylinder 1 of the head portion 3, and the inner surface 3 ′ of the head portion 3 is spherical toward the nozzle hole 6. The head portion 3 may be indirectly connected to the rotary operation cylinder 2 via another member.

The core 4 is fixed to the tip of the main body cylinder 1, and a part (a front member 41 described later) of the core 4 is loosely fitted to the head part 3 to urge a vortex flow to the water for sprinkling which passes through the main body cylinder 1. is there. The core 4 has a structure in which a front member 41 and a rear member 42 are combined for manufacturing reasons. The front member 41 intersects two substantially semicircular stirring blades 41c at an angle of about 45 degrees. At the same time, the both blades 41c are inclined in opposite directions to each other, and a hole 43 penetrating in the front-back direction is formed in the vicinity of the intersection of the stirring blades 41c, and the rear member 42 is formed as shown in FIG. It has a support blade 42b which forms a flow path 42a for water for sprinkling with the main body cylinder 1. The front member 41, the rear member 42, and the main body cylinder 1 of the core 4 can be integrally formed.

According to such an embodiment, a vortex is formed when the water for sprinkling flows from the main body cylinder 1 through the core 4 into the head portion 3. As shown in FIG. 2, when the distance between the core 4 and the nozzle hole 6 is long, the vortex flow is pushed by the flow velocity of the water for spraying and is directly emitted from the nozzle hole 6, and as shown in FIG. When the interval is short, a swirl flow enters from the nozzle hole 6 and a coarse mist-like spray is ejected. The injection mode of this spray injection is effectively formed by protecting the vortex flow by the spherical inner surface 3'of the head portion 3.

The injection form can be adjusted by rotating the rotary operation cylinder 2. As shown in FIG. 3, the rear member 42 of the core 4 contacts the packing 7 provided on the inner surface 3 ′ of the head portion 3. Water will be stopped if it is contacted and blocked.

[Advantages of the Invention] As described above, the sprinkling nozzle according to the present invention has an intersection of two stirring blades forming the core when the water for sprinkling passes from the main body tube through the core to the tip of the head portion. The water flow is formed into a vortex by the cylindrical inner surface of the head part and the spherical inner surface of the tip, and the water flow passing through the hole opened near the intersection of the stirring blades goes straight toward the nozzle hole of the head part and the nozzle At the hole position, it intersects with the vortex and becomes turbulent, and is sprayed in a coarse mist from the nozzle hole in the head part, and the spray form is not a ring shape with the central part missing, but a circular shape with the entire inside filled. The effect is that a coarse, mist-like spray form can be formed by injection. For this reason, it is possible to provide delicate watering such as watering on the plants in the garden, which brings about an effect that the versatility is expanded.

Furthermore, since the operation is performed by the same rotary operation tube as the conventional one,
It has the effect of being easy to handle.

[Brief description of drawings]

1 to 5 show an embodiment of a sprinkling nozzle according to the present invention. FIG. 1 is a sectional view in a direct irradiation state, FIG. 2 is a sectional view in a spray injection state, and FIG. 3 is a water stopping state. Sectional view of the fourth
The figure is a cross-sectional view taken along the line DD of FIG. 1, and FIG. 5 is the line EE of FIG.
6 is a sectional view taken along the line FF in FIG. In the figure, 1 ... Main body cylinder, 2 ... Rotating operation cylinder, 3 ... Head part, 4 ... Core, 6 ... Nozzle hole, 11 ... Hose connection part

Claims (1)

[Scope of utility model registration request] 1. A rotary operation tube for screwing water from the nozzle hole to a main body tube through which water for sprinkling passes is screwed and assembled, each having a nozzle hole at the front end and a hose connection portion at the rear end. In the sprinkling nozzle, the inner surface of the head portion connected to the rotary operation cylinder is made cylindrical and the inner surface of the tip is made spherical, and a nozzle hole is opened at the tip of the head portion to form the nozzle hole in the main cylinder. In addition to being movable in the axial direction, two substantially semicircular stirring blades intersect each other at a predetermined angle, and a core provided with a hole penetrating in the front-back direction near the intersection of both blades is the nozzle. A watering nozzle, which is provided on the main body cylinder so as to face the hole.