JP3009596U - Spray nozzle for spraying chemicals - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to easily change to one for weeding or disinfection with one spray nozzle. A spherical surface is formed between a male screw portion 3d of a nozzle body 3 on which a nozzle cap 2 having a vortex chamber 2b and a nozzle hole 2a is screwed, and a tip portion of the nozzle body 3 having a spiral groove 3b. A cutout 3c is formed, and a discharge hole 3a is formed so as to face the spherical cutout 3c. Further, the spherical notch 3c and the spiral groove 3b are formed so as not to interfere with each other. As a result, the herbicide and the disinfectant can be selectively sprayed only by attaching / detaching the nozzle cap 2 to / from the nozzle body 3, so that the spraying efficiency of the chemical liquid can be improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a spray nozzle for spraying a chemical solution, and more particularly to a spray nozzle for spraying a chemical solution for spraying a herbicide or a disinfectant on a vegetable garden, flowerbed or the like.

[0002]

[Prior art]

 Conventionally, in order to weed out weeds in a vegetable garden, a flower bed, etc., from a chemical liquid tank 49, a pump 50, a hose 48, a spray pipe 47, and a spray nozzle 41 for weeding, as shown in FIGS. A sprayer 40 consisting of is used. The herbicidal spray nozzle 41 is generally a female and male elbow 42 screwed onto the tip of a spray pipe 47, a nozzle tip 43 for ejecting a chemical solution, and the nozzle tip 43 is fixed to the male and female elbow 42 via packings 44, 45. It is composed of a holding nut 46. The nozzle tip 43 includes an arcuate cutout 43a and a discharge hole 43b formed so as to face the arcuate cutout 43a.

In the sprayer 40 configured as described above, since the arc-shaped notch 43a is formed at the nozzle tip 43 of the weeding spray nozzle 41, the herbicide can be sprayed in fine particles in a fan shape. . As a result, weeds can be sprayed aiming at weeds occurring in the smallest areas such as vegetable gardens and flower beds. Further, when disinfecting a vegetable garden, a flower bed, etc., a spray nozzle for disinfection capable of spraying fine mist particles is used in the sprayer 40. As shown in FIG. 5, this spray nozzle for disinfection is screwed onto the nozzle main body 52 to be screwed onto the tip of the spray pipe 47, and is screwed onto the nozzle main body 52 via a packing 53 to inject the disinfectant solution into the atmosphere. The nozzle cap 54 and the core 55 having a spiral groove 55a are formed. An injection hole 54a and a vortex chamber 54b are formed in the injection port cap 54.

The disinfecting spray nozzle 51 configured as described above causes the pressurized disinfectant supplied from the chemical liquid tank 49 to swirl by the spiral groove 55 a of the core 55, and disinfects the disinfectant that has generated a swirling flow. By colliding in the vortex chamber 54b, it is possible to widely spray fine mist particles from the injection holes 54a of the injection port cap 54. As a result, the disinfectant can be efficiently applied to the vegetable garden, flower beds, etc.

[0005]

[Problems to be solved by the device]

 However, in order to spray the herbicide and the disinfectant with one sprayer, the weeding spray nozzle 41 and the disinfecting spray nozzle 51 must be exchanged with a tool, so that the spraying efficiency of the chemical solution can be improved. Not preferred for.

[0006]

【Purpose】

 The present invention has been made to solve such a conventional problem, and provides a spray nozzle for spraying a chemical solution, which can be easily changed to one for weeding or disinfecting with one spray nozzle. With the goal.

[0007]

[Means for Solving the Problems]

 The spray nozzle for spraying a chemical solution of the present invention which achieves such an object has a vortex chamber for spraying the chemical solution into the atmosphere and a nozzle cap formed with a nozzle hole, and the nozzle cap is screwed onto the vortex chamber for the chemical solution. The nozzle body has a nozzle body for discharging, and the nozzle body has a spiral groove for swirling the chemical solution toward the vortex chamber of the nozzle cap, and a tip of the nozzle body with a male screw part and a spiral groove for screwing the nozzle cap. It is composed of a spherical notch formed between them and a discharge hole formed so as to face the spherical notch, and the spherical notch does not interfere with the spiral groove.

In addition, the spray nozzle for spraying the chemical solution of the present invention is a two-head spray nozzle for spraying the chemical solution, which has two spray nozzles, and one of the spray nozzles sprays the chemical solution into the atmosphere. The nozzle cap is provided with a vortex chamber and nozzle holes for discharge, and the nozzle body is screwed onto the nozzle cap to discharge the chemical solution into the vortex chamber.The nozzle body swirls the chemical solution toward the vortex chamber of the nozzle cap. A spherical groove that is formed between the spiral groove that moves and the external thread that threadedly attaches the nozzle cap and the tip of the nozzle body that has the spiral groove. The spherical notch does not interfere with the spiral groove.

Further, in the spray nozzle for spraying the chemical liquid of the present invention, any one of the nozzle bodies in which the spherical notches of the two nozzles are formed has a male screw for temporarily fixing the nozzle cap. Parts are formed.

[0010]

[Action]

 To spray the disinfectant over a relatively wide area such as a garden or flowerbed, screw the nozzle cap onto the nozzle body. When the disinfectant is discharged from the discharge hole of the nozzle body in this state, the disinfectant is sent from the notch into the spiral groove to generate a swirl flow, and the disinfectant generating this swirl flow collides in the swirl chamber. As a result, it is possible to widely spray fine mist particles from the injection hole of the injection port cap.

Further, in order to spray the herbicide to the weeds that are generated in a very small area such as a flower bed, the herbicide is atomized from the spherical notch of the nozzle body only by removing the nozzle cap from the nozzle body. be able to. For example, if the spherical notch of the nozzle body is sprayed diagonally downward to the ground, the pressurized herbicide discharged from the discharge hole is sprayed into the atmosphere along the spherical notch. As a result, fine particles larger than fine mist particles are formed. This allows the herbicide to be sprayed almost exactly because it can be sprayed without spreading like fine mist particles.

As described above, the herbicide and the disinfectant can be selectively sprayed only by attaching / detaching the nozzle cap to / from the nozzle body. In addition, in order to disperse the disinfectant efficiently over a fairly wide area such as a vegetable garden or a flower bed, one spray nozzle for spraying the chemical liquid with two nozzles for spraying the herbicide and the disinfectant should be used. In addition, it can be achieved by dedicating another animal to disinfectant.

[0013]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 2, a sprayer to which the spray nozzle for spraying the chemical solution of the present invention is applied, as shown in FIG. 2, a tank 8 for storing the chemical solution, a pump 9 for sucking the chemical solution in the tank 8, and a tank by reciprocating the pump 9. The nozzle 1 as shown in FIG. 1 for spraying the chemical solution sent from the nozzle 8 is provided.

The tank 8 is made of a brass plate or a stainless plate having a thickness of 0.6 to 1.0 mm, and the brass plate is nickel-plated. A hose 7 is connected to the tank 8, and a nipple 6 is fixed to the tip of the hose 7 for connecting with the nozzle 1 and the like. The pump 9 is provided in the tank 8, and is a piston pump with a piston attached to the end of a rod, a plunger pump using a cylindrical single-acting plunger, or the pressure in the air chamber is raised above a certain level, and only the air pressure is used. An air pump for spraying is used. The cylinder, plunger, and piston are made of brass and bronze, and the cylinder is nickel-plated. The pump 9 is provided with a suction valve and a projection valve, but since the liquid used is an agricultural chemical such as a viscous liquid or suspension, the suction valve and the projection valve are made of brass or steel. The chemical liquid sucked up by the pump 9 enters the air chamber and is sent to the protruding port of the pump 9 at a substantially constant pressure by the pressure of air.

The nozzle 1 sprays the chemical solution sent from the tank 8. As shown in FIGS. 1A and 1B, the nozzle body 3 for discharging the chemical solution, and the male screw of the nozzle body 3 The nozzle cap 2 screwed to the portion 3d. The nozzle cap 2 is formed with a vortex chamber 2b and a nozzle hole 2a for injecting the chemical liquid into the atmosphere.

The nozzle body 3 has a spiral groove 3b for swirling the liquid medicine toward the vortex chamber 2b of the nozzle cap 2, a male screw portion 3d of the nozzle body 3 and a tip of the nozzle body 3 having a spiral groove 3b. A spherical notch 3c formed between the parts and a discharge hole 3a facing the notch 3c are formed. The notch 3c is provided at a position where it does not interfere with the spiral groove 3b.

When the nozzle cap 3 thus formed is screwed onto the nozzle cap 2 and the pressurized chemical liquid is discharged from the discharge hole 3 a of the nozzle body 3, the chemical liquid spirals from the spherical notch 3 c. The chemical liquid fed into the groove 3b and fed into the spiral groove 3b produces a swirl flow, and the chemical liquid producing the swirl flow collides with the swirl chamber 2b of the jet cap 2 to cause the jet hole 2a of the jet cap 2 to flow. It can be widely sprayed with fine mist particles.

When the nozzle cap 2 is removed from the nozzle body 3 and the pressurized chemical solution is discharged from the discharge hole 3 a of the nozzle body 3, the chemical solution is discharged to the atmosphere along the spherical notch 3 c of the nozzle body 3. Since it is dispersed inside, it will be formed into fine particles larger than fine mist particles. As a result, it does not spread like fine mist particles, and the chemical solution can be sprayed almost aiming.

The nipple 6 fixed to the hose 7 connected to the tank 8 and the nozzle 1 are telescopically connected by telescopic pipes 4a and 4b, and the connecting portions of the telescopic pipes 4a and 4b are connected to each other. A liquid tight seal 4 is provided. Since a packing is provided inside the liquid-tight seal 4, even if the telescopic pipes 4a and 4b are moved in a telescopic manner, the leakage of the chemical liquid flowing in the pipes 4a and 4b can be prevented only by tightening the gland. Can be prevented. A screw portion 5 screwed onto the nipple 6 is fixed to the other end of the pipe 4b.

The operation of the sprayer 30 to which the spray nozzle for spraying the chemical liquid of the present invention having the above-mentioned structure is applied will be described below. To spray the disinfectant over a relatively wide area such as a vegetable garden or a flower bed, the nozzle cap 2 of the nozzle 1 is screwed to the nozzle body 3, and the grip of the pump 9 provided in the tank 8 is used. By holding the piston 9a and moving the piston, the pressurized disinfectant is supplied to the nozzle 1. The pressurized disinfectant is supplied from the tank 8 through the hose 7 and the pipes 4b and 4a to the discharge hole 3a of the nozzle body 3, and the disinfectant discharged from the discharge hole 3a is transferred from the notch 3c to the spiral groove 3b. Sent in. The disinfectant fed into the spiral groove 3b produces a swirl flow, and the disinfectant producing this swirl flow collides with the swirl chamber 2b of the injection port cap 2 to generate a fine particle from the injection hole 2a of the injection port cap 2. Can be widely sprayed with fog.

Further, in order to spray the herbicide on the weeds that are generated in the minimum area such as the vegetable garden and the flower bed, the nozzle cap 2 is removed from the nozzle body 3. A spherical notch 3c of the nozzle body 3 from which the nozzle cap 2 is removed is provided diagonally downward with respect to the ground as shown in FIG. 2, and the tank 8 is provided in the same manner as when disinfectant is sprayed. The pressurized herbicide is supplied to the nozzle 1 by holding the grip portion 9a of the pump 9 and moving the piston. The pressurized herbicide is supplied from the tank 8 through the hose 7 and the pipes 4b and 4a to the discharge hole 3a of the nozzle body 3, and the herbicide discharged from the discharge hole 3a is guided along the spherical notch 3c. As it is sprayed into the atmosphere, it is formed into fine particles larger than fine fog particles. When viewed from the side in the spraying direction, this state is almost straight and is sprayed on the weeds, and when viewed from the front in the spraying direction, it is sprayed in a fan shape. Therefore, since it can be sprayed without spreading like fine mist particles, the herbicide can be sprayed almost as intended.

Although the present embodiment has been described using the spray nozzle for spraying the chemical liquid with one head, the present invention is not limited to this and may be applied to the spray nozzle for spraying the chemical liquid with two heads. As shown in FIGS. 3 (a) and 3 (b), this two-headed spray nozzle for spraying a chemical liquid is provided with a telescopic pipe 4a and a pipe 4a of 4b which can be telescopically moved by a liquid-tight seal 4. The fixed branch port is provided in the T-type branch pipe 17 via a T-shaped branch pipe 17 in two directions, a male screw portion 14, and a liquid-tight O-ring 15 fitted in the male screw portion 14. The female screw portion 17b provided on the T-shaped branch pipe 17 via the injection port 10 screwed to the female screw portion 17a and the male screw portion 24 and the liquid tight O-ring 26 fitted on the male screw portion 24. And the injection port 20 screwed to the.

Between the internal threaded portions 17a and 17b of the T-shaped branch pipe 17, a supply passage 17d penetrating the T-shaped branch pipe 17 with a diameter smaller than that of the internal threaded portions 17a and 17b, and the rotation of the injection port 10 and the injection port 20 Openings 17e and 17c having a diameter that prevents the chemical solution from leaking from the ring 15 and the O-ring 26 are formed. The injection port 10 includes a nozzle body 12 for discharging a chemical solution, and an injection port cap 11 screwed to a male screw portion 12d of the nozzle body 12. The nozzle cap 11 is formed with a vortex chamber and a nozzle hole (not shown) for injecting the chemical liquid into the atmosphere. The nozzle body 12 has a nozzle O-ring 13 for liquid tightness on the screwing direction side of the nozzle cap 11, a spiral groove 12b for swirling the chemical solution toward the vortex chamber of the nozzle cap 11, and a nozzle body 12 of the nozzle body 12. A spherical notch 12c is formed between the tips of the nozzle body 12 in which the male screw portion 12d and the spiral groove 12b are formed, and a discharge hole 12a facing the notch 12c.

The cutout 12c is provided at a position that does not interfere with the spiral groove 12b. Further, the nozzle body 12 is formed with a temporary fixing male screw portion 16 on the opposite side of the male screw portion 14. Thereby, loss of the nozzle cap 11 can be prevented. On the other hand, the injection port 20 has a nozzle worm 22 for ejecting the chemical liquid, and a nozzle cap 21 screwed to the nozzle worm 22. A liquid-tight nozzle O-ring 23, a discharge hole 22a for discharging the chemical liquid, and a spiral groove 22b for swirling the chemical liquid discharged from the discharge hole 22a are provided on the screwing direction side of the nozzle worm 22 with the nozzle cap 21. And are formed. Further, a cut groove 25 serving as a flow groove for the chemical liquid is formed in the male screw portion 24 of the injection port 20, and a T-shaped valve 27 for closing a supply passage 17d formed in the T-shaped branch pipe 17 is installed. It

By using the nozzles 10 and 20 in the two-headed spray nozzle for spraying the chemical liquid thus configured, it is possible to widely spray fine mist particles from both nozzles 10 and 20. , The disinfectant can be effectively spread over a fairly wide area such as gardens and flower beds. In addition, in order to spray the herbicide on the weeds that are generated in the extremely small area such as the vegetable garden and the flower bed, the injection port 20 is closed, and the T-shaped valve 27 is pressed against the supply passage 17d to stop the flow of the herbicide. Then, the injection port cap 11 of the injection port 10 is removed and temporarily fixed to the temporary fixing male screw portion 16 formed on the nozzle body 12. When the herbicide is supplied to the nozzle 10 through the pipe 4a in this state, it is supplied to the discharge hole 12a of the nozzle body 12 without any obstacle, but when the herbicide is supplied to the nozzle 20, the nozzle 20 Since the T-shaped valve 27 is pressure-bonded by the T-shaped branch pipe 17 and the T-shaped branch pipe 17, the herbicide cannot flow into the nozzle 20 from the supply passage 17d.

In this state, when the herbicide is supplied to the nozzle 10 with the spherical notch 12c of the nozzle body 12 from which the nozzle cap 11 is removed directed obliquely downward with respect to the ground, for example, weeding The herbicide is supplied to the discharge hole 12a of the nozzle body 12, and the herbicide discharged from the discharge hole 12a is sprayed into the atmosphere along the spherical notch 12c. Will be formed. When this state is viewed from the side and the front in the spraying direction, as in the case of the above-mentioned spray nozzle for spraying the chemical liquid with one head, it is sprayed on the weeds in a straight line on the side, and in a fan shape on the front. ing . Therefore, since it can be sprayed without spreading like fine mist particles, the herbicide can be sprayed almost as intended.

In this embodiment, the mechanism for opening and closing the supply passage is provided only in the injection port 20, but this mechanism may be provided in both the injection ports 10 and 20.

[0028]

[Effect of device]

 As is clear from the above examples, the spray nozzle for spraying a chemical solution of the present invention has a vortex chamber for spraying a chemical solution into the atmosphere and a nozzle cap formed with a nozzle hole, and a nozzle cap is screwed. The nozzle body is provided with a nozzle body for discharging the chemical solution into the vortex chamber.The nozzle body has a spiral groove for swirling the chemical solution toward the vortex chamber of the nozzle cap, and a male screw part and a spiral groove for screwing the nozzle cap. It consists of a spherical notch that is formed between the tip of the nozzle body and a discharge hole that is formed so as to face the spherical notch.The spherical notch does not interfere with the spiral groove. The herbicide and the disinfectant can be selectively sprayed only by attaching and detaching the nozzle cap provided to the nozzle to the nozzle body. As a result, the efficiency of spraying the chemical liquid can be improved.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a spray nozzle for spraying a chemical solution of the present invention, (a) is an explanatory view, and (b) is a detailed view.

FIG. 2 is an explanatory view when using a sprayer to which the spray nozzle for spraying the chemical liquid of the present invention is applied.

3A and 3B are views showing another embodiment of the spray nozzle for spraying the chemical liquid of the present invention, FIG. 3A is a detailed view, and FIG.
View from the arrow.

FIG. 4 is a view showing a conventional spray nozzle for spraying a chemical solution,
(A) is explanatory drawing of the sprayer which used the spray nozzle for herbicides, (b) is a detailed view of this nozzle.

FIG. 5 is a detailed view showing a conventional disinfection spray nozzle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Nozzle 2 ... Nozzle cap 2a ... Nozzle 2b ... Vortex chamber 3, 12 ... Nozzle body 3a, 12a ... Discharge hole 3b, 12b ... Helical groove 3c, 12c ... Notch 3d, 12d ... Male screw part 10, 20 ... Nozzle 16 ... Temporary fixing male thread

Claims (3)

[Scope of utility model registration request] 1. A nozzle body having a vortex chamber and a nozzle hole for injecting a chemical liquid into the atmosphere, and a nozzle body for screwing the nozzle cap to discharge the chemical liquid into the vortex chamber. The nozzle body is formed between a spiral groove for swirling the liquid medicine toward the swirl chamber of the nozzle cap, a male screw part for screwing the nozzle cap, and a tip of the nozzle body having the spiral groove. A spray for chemical liquid spraying, characterized in that it comprises a spherical cutout and a discharge hole formed so as to face the spherical cutout, and the spherical cutout does not interfere with the spiral groove. nozzle. 2. A two-headed spray nozzle for spraying a chemical liquid having two nozzles, wherein any one of the two nozzles has a vortex chamber and a nozzle hole for injecting the chemical liquid into the atmosphere. An injection port cap, and a nozzle main body to which the injection port cap is screwed to discharge the chemical liquid to the swirl chamber, and the nozzle main body has a spiral groove for swirling the chemical liquid toward the swirl chamber of the injection port cap. A spherical notch formed between the male screw part for screwing the nozzle cap and the tip of the nozzle body in which the spiral groove is formed; and a discharge provided so as to face the spherical notch. A spray nozzle for spraying a chemical liquid, comprising a hole, and the spherical notch does not interfere with the spiral groove. 3. A temporary fixing male screw portion for temporarily fixing the injection port cap is formed on any one of the nozzle main bodies in which the spherical notches of the two injection ports are formed. The spray nozzle for spraying a chemical solution according to claim 2.