JPH0326943Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a nozzle body for spraying water, horticultural chemicals, etc., and particularly to a structure of a nozzle body suitable for downward spraying at a high position.

(Background of the idea) For example, when spraying water or a chemical solution from the nozzle body onto a tree that is taller than you or a potted plant located in a high position, you should direct the discharge port downward. Needs to be sprayed. In order to create a nozzle body that enables downward spraying of water, chemical liquid, etc. at a high position, the nozzle body is divided into a tip and a rear end, and the tip and rear ends are connected via a rotatable pipe joint. There are some that are connected to each other so that the tip can be bent downward. However, such a nozzle body must be rotatably connected to the front end and the rear end via a pipe joint while ensuring a sufficient water passage area, and also requires a means to prevent water leakage, such as an O-ring. The structure of the connecting part is complicated, and the O-ring deteriorates during long-term use, and the joint part becomes loose, resulting in water leakage.

(Purpose of the invention) Therefore, the object of the present invention is to provide a nozzle body that can spray water, chemicals, etc. downward at a high position with a simple configuration. To this end, the present invention consists of a nozzle body that includes a nozzle part and a grip part that rotatably supports the nozzle part and performs spraying work by holding the nozzle part. A water supply tube directly connected to a liquid supply section such as water or a chemical solution is passed through the grip section and its tip is connected to the nozzle section, and at least the nozzle section and the grip section of the tube are rotated. The portion corresponding to the flexible connecting portion is made of a flexible soft material. With this configuration, the nozzle part can be rotated to freely adjust the spray angle of water, chemical liquid, etc., making it easy to perform downward spraying at high positions, and making it possible to avoid complicated joints and O. This eliminates the need for water-stopping means such as rings.

(Example) Hereinafter, examples of the present invention will be described with reference to the respective figures, taking as an example the case where the invention is applied to an electric sprayer for gardening.

Fig. 1 is an exploded perspective view of the nozzle body 1 according to the present invention, Fig. 2 is a side view of the assembled state, and Fig. 3 is a cross-sectional view. The nozzle body 1 is divided into a nozzle part 2 and a grip part 3. The nozzle portion is rotatably supported by the grip portion by means to be described later. The nozzle part 2 includes an enlarged tip part 2a, a reduced diameter part 2b, a front body part 2c, a middle body part 2d, a rear body part 2e,
It is configured by sequentially connecting rear end connecting portions 2f,
A water passage 4 is formed in the center along the axial direction. Water passage grooves 5, 5 are cut out in the enlarged portion 2a, and the water passage 4 is formed in the reduced diameter portion 2b.
Water holes 6, 6 are formed to communicate with the water passageway 4, and the water and chemical solution sent to the water passageway 4 are passed through the water passage holes 6, 6.
It passes through the water passage grooves 5, 5, and flows out toward the spray hole (described later). Reference numeral 7 denotes an O-ring as a water-stopping member attached to the front body portion 2c. 8
is a threaded portion formed on the circumferential barrel surface of the middle barrel portion 2d;
A substantially cylindrical cap body 9 is screwed onto the threaded portion 8 so as to be able to move forward and backward.

The cap body 9 is formed by connecting a front body part 9a and a rear body part 9b having a slightly larger diameter than the front body part 9a. The front end surface of the front body portion 9a is conically bulged, and a spray hole 10 is formed in the center thereof. Further, a large number of discharge holes 11 having a diameter slightly larger than the spray holes 10 are formed along the circumferential direction on the rear peripheral surface of the front body portion 9a. A threaded portion 12 is formed on the inner circumferential surface of the rear body portion 9b to be screwed into the threaded portion 8, and when the cap body 9 is rotated, the cap body 9 is rotated along the length direction of the nozzle portion 2. Move forward and backward. Reference numeral 13 denotes a groove for preventing fingertips from slipping, which is formed on the circumferential surface of the rear body portion 9b. Reference numeral 14 is a substantially cylindrical watering piece, which has a large-diameter discharge port 15 formed in its front surface, and is attached integrally or removably to the front body portion 9a of the cap body 9.

For example, when watering a potted plant or the like, move the cap body 9 forward until its discharge hole 11 is in front of the O-ring 7, as shown in FIG. The water that has come is passed through the water hole 6,
6. The liquid flows through the discharge hole 11 toward the discharge port 15 as shown by the broken line arrow, and is discharged from the discharge port 15. Also, when spraying the chemical solution in the form of a mist, the third
As shown in Figure b, the cap body 9 is connected to its discharge hole 11.
If the liquid is moved backward until it is behind the O-ring 7, the chemical solution that has flowed to the water passage 4 will flow through the water passage holes 6,
6. The water is vigorously ejected in the form of mist from the small-diameter spray hole 10 through the water flow grooves 5, 5.

The rear end connecting portion 2f includes a substantially saddle-shaped connecting plate 21f,
It consists of a connecting pipe 22f located inside the connecting plate 21f and communicating with the water passageway 4. Connecting plate 21
The lower part of f is an open part 16, and the upper part is also an open part 17 cut out in a substantially U-shape.
In addition, the rear end surface of the downstream side of the connecting plate 21f has four stages of slopes a, a, b, b, c, c, d, d in which the slope angle changes stepwise from the bottom to the top. There is. 18, 18 are pins protruding from both sides of the connecting plate 21f; 19, 19 are elastic projecting pieces extending from both sides of the rear end of the rear body portion 2e toward the connecting portion 2f; 20, 20 are the projecting pieces 19, 19
It is a protrusion that protrudes from the inside of the . Details of these actions will be described later.

The grip part 3 includes a tip connecting part 3a and a grip part 3b.
It is formed by connecting the The distal end connecting portion 3a is approximately a saddle-shaped body made of flexible synthetic resin, and has an open portion 25 at its lower part. Further, the nozzle portion 2 is provided on both side plates 31a, 31a.
Insert the rear end connecting portion 2f and press the pins 18, 18.
Rotatably fit the nozzle part 2 into the grip part 3.
Fitting holes 21, 21 are formed to rotatably support the holder (see also FIGS. 4a and 4b). In addition, on both sides of the lower end of both side plates 31a and 31a,
Fitting grooves a', a', b', b', c', c', d', d' for elastically fitting the protrusions 20, 20 are formed in the fitting holes 21, 21. Four pieces are formed on the same circumference around the center, and when the nozzle body 1 is assembled,
is elastically held between the connecting plate 21f and the projecting pieces 19, 19. 22, 22 are both side plates 31a, 3
This is a notch groove formed in the upper part of 1a along its length. The notch grooves 22, 22 are connected to the connecting portion 3a.
This is formed in order to impart elasticity in the vertical and horizontal directions to the upper plate 32a and both side plates 31a, 31a. The rotation operation of the nozzle part 2 and the fitting holes 2 for the pins 18, 18 and the protrusions 20, 20
1, 21 and the fitting grooves a, a' to d', d'.

The grip portion 3b is a hollow tubular body, and the grip portion 3b is a hollow tubular body.
A flexible, flexible water supply tube 23 such as a vinyl tube is inserted into the tube b. The grip part 3b is used to hold the grip part 3b and spray water, chemical solution, etc., and its length is arbitrarily determined.
The tube 23 passes through the grip portion 3, and its distal end is connected to the connecting tube 22f, and in this state, the bent portion of the tube 23 is covered and protected by the connecting portions 2f and 3a. In addition, the rear end can be connected without passing through a joint or other tube on the way.
It is directly connected to the electric sprayer body (described later). Fifth
As shown in the figure, a large number of protrusions 24 are formed on the inner peripheral surface of the grip portion 3b along its length, and the outer surface of the tube 23 lightly slides on the upper surface of the protrusions 24. . The protrusion 24 is connected to the tube 2
The sliding contact area between the outer surface of the tube 23 and the inner peripheral surface of the grip part 3b is made small so that the tube 23 can easily slide inside the grip part 3b when bending the nozzle part 2 as described later. It is something that Next, the refracting means of the nozzle section 2 will be explained with reference to FIG.

As shown in figure a, the uppermost slope d is the upper plate 3.
The nozzle part 2 is in contact with the inner wall surface of the nozzle part 1a.
is parallel or approximately parallel to the grip portion 3 (see also the solid line in FIG. 2), and is used in this state when spraying normal chemical solutions or water. At this time, the protrusions 20, 20 of the protrusions 19, 19 are connected to the uppermost fitting groove.
It is fitted into d′ and d′.

When spraying water or a chemical solution downward, the nozzle portion 2 is rotated clockwise around the pins 18, 18 to deflect the water or the chemical solution downward, thereby adjusting the jetting angle of the water or the chemical solution. Then, the protrusion P of the connecting part between the inclined surface d and the inclined surface c
However, the upper plate 32a comes into strong sliding contact with the inner wall surface of the upper plate 32a.
The upper plate 32a rotates while slightly elastically bending the upper plate 32a (see b in the same figure), and then the inclined surface c
It comes into contact with the inner wall surface (see the chain line in the same figure). At the same time, the protrusions 20, 20 are fitted into the fitting grooves c', c' of the next stage. In this state, the nozzle portion 2 is slightly bent downward (see the chain line in FIG. 2), and the tube 23 is also slightly bent. That is, the upper plate 32a and each of the inclined surfaces a, a to d, and d serve as adjustment means for holding the nozzle portion 2 at a predetermined angle.If such adjustment means are provided, the inside of the bendable tube 23 can be adjusted. Even if the tube 23 tries to return to its straight state due to the flow velocity energy of the rapidly flowing water or chemical solution, the inclined surfaces a, a to d, and d on both the left and right sides will firmly abut against the inner wall surface of the upper plate 32a. Because I have
The nozzle portion 2 maintains the bent state to prevent this. Note that the protrusions 20, 20 of the protrusions 19, 19 and the fitting grooves a' to d' into which they are fitted also have a slight moderation effect, and a clicking sound is generated, increasing the moderation display effect. . Furthermore, when the nozzle portion 2 is bent as described above, the tube 23 is bent while being slightly pulled toward the nozzle portion 2, but as described above, the tube 23 has a small sliding contact area within the grip portion 3b. Since it is inserted in a straight line, it can be slid toward the nozzle part 2 side without any difficulty. Nozzle part 2
If it is desired to further increase the refraction angle, the nozzle portion 2 may be further rotated clockwise (see c in the figure). Even if the bending angle of the nozzle portion 2 is increased in this manner, the tube 23 does not bend significantly, and can escape in a direction that reduces the curvature due to the above-mentioned open portions 16 and 25. i.e. tube 2
3, if the bent part deforms into a flat shape, the water flow area becomes smaller and the amount of spray decreases.
In addition, since the internal pressure on the delivery side increases and a high load is applied to the pump, it is important to prevent this, and for that purpose, it is necessary to allow the tube 23 to bend freely. The lower part of the opening part 16, 25 as a relief part as mentioned above.
Therefore, the tube 23 will not be unnecessarily deformed. In this embodiment, the angle of the nozzle part 2 can be adjusted in four stages using the inclined surfaces a, a to d, and d, but the angle can be adjusted in any number of stages as long as it is two or more stages. . Note that the upper end surfaces 26 and 27 of the connecting portions 2e and 3a are connected to the nozzle portion 2.
The beveled tapered surface is designed to prevent fingertips from getting caught or foreign objects from getting caught during the bending operation.

FIG. 7 shows how a potted plant 31 is being sprayed with a chemical solution using an electric sprayer 30 as a liquid supply section using the present nozzle body 1. 32 is a chemical tank, 33 is a main body part, 34 is a grip part, and 35 is a pistol type switch button. Reference numeral 36 denotes a locking portion of the tube 23 provided on the side wall of the main body portion 33, and when not in use, the tube 23 is wound around the main body portion 33 while being locked to the locking portion 36, and the grip portion 3b is gripped. It is mounted and stored in the mounting groove 37 on the upper part of the section 34 (see the chain line in the figure). As mentioned above, the nozzle part 2 is rotatable, so when spraying the chemical solution on the potted plants 31 located at a high position, the nozzle part 2
The grip part 3b is rotated and bent to an angle that is easy to use.
All you have to do is hold it and scatter it downward. As mentioned above, the length of the grip part 3b is arbitrary, as long as it can be held firmly in the hand, but if it is made as long as possible, it will be easier to perform downward spraying at a higher position. can. Also, when not in use,
If you keep the nozzle part 2 straight, the tube 2
2 can be prevented from becoming bent.

(Other Embodiments) FIG. 8 shows another embodiment of the present invention, in which the grip portion 41 of the nozzle body 40 is formed of three telescopic tubes 41a, 41b, and 41c. This is different from the first embodiment described above.
Figure a shows a state in which the telescopic tube 41 is extended to the maximum, and figure b shows a state in which it is contracted to the minimum. Of course, the telescopic tube may be of any number of stages.

FIG. 9a shows another water supply tube in place of the tube 23, in which reference numeral 42 is a tube made of a rigid material, and only the portion corresponding to the rotatable connection portion has a bellows-like bent portion 421. It is curved and can be bent freely as shown by the broken line. FIG. 4b shows still another embodiment, in which the present water supply tube 43 has a flexible tube 431 similar to the tube 23 described above,
A rigid tube 432 is attached except for the portion corresponding to the rotatable connecting portion. As described above, there are various possible water supply tubes according to the present invention, but the key point is that at least the portion corresponding to the rotatable connecting portion between the nozzle portion and the grip portion is bendable, and the rear end portion of the tube is bent midway. Any device that can be connected directly to a liquid supply section such as an electric sprayer main body without using a joint or other tube, thereby eliminating the need for a joint means, a water stop means, etc., may be used. Although the above embodiment has been explained using the case where it is applied to the electric sprayer 30, the nozzle body 1 according to the present invention has the following features:
It can also be applied to manual sprayers and water sprinklers that are directly connected to a water faucet.

(Effect of the invention) As explained above, the nozzle body 1 according to the invention
consists of a nozzle part 2 and a grip part 3 that rotatably supports the nozzle part 2, the rear end is directly connected to the liquid supply part 30, and the tip part is connected to the nozzle part 2. The tube 23 is passed through the inside of the grip portion 3, and at least the portion of the tube 23 corresponding to the rotatable connecting portion between the nozzle portion 2 and the grip portion 3 is made of a flexible soft material. , the nozzle part 2 can be easily bent to hold the grip part 3, which not only improves the operability of downward spraying of water or chemical solution at a high position, but also
The grip portion 3 also has the effect of protecting the tube. Furthermore, since there is no need to provide a joint means or a water stop means for the tube 23 in the middle of the water supply tube 23, the structure is extremely simple, and there are various effects such as there is no risk of water leakage. .

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an exploded perspective view of the nozzle body, Fig. 2 is a side view, and Fig. 3 is an exploded perspective view of the nozzle body.
Figures a, b, Figures 4 a, b, and 5 are sectional views, Figure 6 a, b, and c are partial side views, Figure 7 is a perspective view in use, and Figures 8 a, b are A side view of another embodiment of the present invention, FIGS. 9a and 9b are a side view and a sectional view of still another embodiment. 1,40...Nozzle body, 2...Nozzle part, 3,
41... Grip part, 23, 42, 43... Water supply tube, 30... Electric sprayer as a liquid supply part.

Claims (1)

[Scope of utility model registration request] A water supply tube 23 consisting of a nozzle part 2 and a grip part 3 that rotatably supports the nozzle part 2, with its rear end directly connected to the liquid supply part 30 and its tip connected to the nozzle part 2. passes through the inside of the grip portion 3, and at least a portion of the tube 23 corresponding to the rotatable connection portion between the nozzle portion 2 and the grip portion 3 is formed of a flexible soft material. nozzle body.