KR102161386B1 - A sprayer for agricultural - Google Patents

Abstract

The present invention relates to a water leakage prevention device of a rotary sprayer. The water leakage prevention device comprises: a body (2a); a rotation bundle (2); a ceramic ring (26); a Teflon ring (27); a central pipe (4); a Teflon ring (27′); a washer (w) and a snap ring (sn′) which are inserted through the rear of the central pipe (4) and support the Teflon ring (27); one or two washers (w1)(w2); and a Teflon screw (28) which is fastened to a female screw part (21a′) of the rear of the body (2a). The ceramic ring (26) is forcibly fitted into the surface of an inner diameter (21) surface together with an O-ring (op′). The Teflon ring (27′) is fixedly inserted together with the O-ring (op) into the central pipe (4) so as to be frictionally rotated in a state in close contact with the side surface of the ceramic ring (26). A water leakage can be smoothly prevented even in a state in which the rotation bundle (2) rotates at a high speed. According to the present invention, even when the rotation bundle (2) rotates at a high speed, there is no any worry about the occurrence of a water leakage. In addition, due to a friction-reducing circular groove (26′) formed at the ceramic ring (26), a friction area is greatly reduced, and thus frictional heat is minimized. Therefore, a control operation can be stably performed for a long time, and thus reliability can be maximized.

Description

Water leakage prevention device for rotary sprayer{A sprayer for agricultural}

The present invention relates to a water leakage prevention device of a rotary sprayer, in particular, by using a reaction that occurs when liquids such as agricultural water, pesticides, liquid manure, etc. are sprayed, two to four nozzle stands are automatically rotated in the opposite direction to the spraying direction. In the rotary sprayer for spraying pesticides that allows the sprayed liquid material to be sprayed or sprayed naturally in the form of a whirlwind, it is configured so that water does not leak from the rotating part. It is intended to be able to prevent problems such as damage to crops by intensively acting on the stem or soil.

In general, in farmhouses and downtown areas, it is common to spray drugs for the control of trees such as fruit trees and street trees, as well as crops from various harmful pests, and the control of livestock. Various liquids for spraying or spraying such liquid drugs Sprayers or nebulizers are developed and used.

The liquid injector described above has been widely distributed, from a manual type in which a user manually pumps and sprays a drug to a power injector of a power injection method using power, and most of them have only a function of simply spreading the drug.

On the other hand, in consideration of the above problems of the injector, Publication No. 10-2016-0067818, which was previously disclosed, was developed. The pre-applied invention is to install a propeller that rotates by a thick wind that acts as a reaction when the liquid is sprayed, so that the propeller rotates by the thick wind generated during the liquid injection process, and the wind generated when the propeller rotates is sprayed. It was developed with the aim of allowing the dispensing distance and the dispensing range of the drug to be sprayed farther and wider by acting on it.

However, although the above disclosed invention is a development to the effect that the propeller rotates by the thick wind and the wind generated from the propeller acts on the drug again, theoretically, when the thick wind generated during liquid spraying rotates the propeller, it occurs in the propeller. It is an invention that is virtually impossible to implement because the wind cannot act on the drug again, and furthermore, a rotating body configured to rotate a head having a nozzle tube radially provided with a nozzle at the tip, and a rotating body positioned at the center of the rotating body and rotating There was a problem in that water leakage inevitably occurred during use because the sealing function that could prevent leakage while allowing rotation between the central pipes that were configured to be impossible was not properly configured.

Patent Document 1. Patent Publication Publication No. 10-2016-0067818 (published on June 14, 2016)

Accordingly, the present invention was invented to solve the problems related to the conventional water leakage, and in particular, it provides a water leakage prevention device for a rotating sprayer that has a very simple and simple configuration of the leakage prevention configuration and at the same time ensures that the leakage protection is reliably achieved. But it has a purpose.

Three to four nozzle tubes 12 having nozzles 11 sprayed in a diagonal direction at the tip are radially installed, and a head 1 having a space 13 formed therein, and the head 1 at the tip A rotating bundle (2) equipped with a leak-proof structure inside and coupled to the outer circumferential surface of the rotating bundle (2) and rotated with the rotating bundle (2) to induce the sprayed medicine to be blown farther and wider. In the rotary sprayer consisting of a propeller (3) and a central pipe (4) connected to the rotating bundle (2) and connected to a handle (43) provided with an on/off valve and a hose at the rear,

Female threaded portions 21a (21a') are formed at the front and rear of the inner diameter, and at a predetermined position inside the inner diameter 21, a hole 22' through which the center pipe 4 passes and stepped surfaces 22a, 22a' on both sides The main body 2a having the annular protrusion 22 formed thereon, and the head coupling part 23 to which the head 1 is fastened and coupled to the front end are provided, and the rear end is fastened to the female threaded part 21a formed in the main body 2a. A rotating bundle (2) consisting of a cap (2b) provided with a male threaded portion (24) and a tapered portion (25') and an inner wall (25) at the tip of the inner diameter; And,

The body (2a) inner diameter (21) is in close contact with the stepped surface (22a) (22a') formed on both sides of the ring protrusion (22) and at the same time is tightly fitted to the inner diameter (21) surface to rotate together with the rotating bundle (2). A ceramic ring 26 having one or more annular grooves 26' for reducing friction on the friction surface and a spacer 27 made of Teflon,

It is installed through the spacer 27 made of the Teflon material and the hole 22 ′ of the ring protrusion 22 and the ceramic ring 26, so that the snap ring (sn) (sn') is fitted at predetermined positions at the front and rear ends. The central pipe 4 provided with grooves 42 and 42 ′ and having a tapered surface 41 formed so that the tip surface is in close contact with the tapered portion 25 ′ of the cap 2b,

It is fitted through the tip of the center tube 4 and is in close contact with the ceramic ring 26, and an O-ring (op) is mounted between the center tube 4 to be provided integrally with the center tube 4 and inserted into the groove 42. A sealing friction member (27') made of a Teflon material to prevent leakage while rubbing against the side of the ceramic ring (26) by a retaining snap ring (sn) and a compression spring (s),

And the body (2a) along with a washer (w) and a snap ring (sn') and one or two washers (w1) (w2) inserted through the tail of the center pipe (4) to support the spacer (27) made of Teflon material. ) Consisting of a Teflon screw 28 fastened to the rear female thread 21a', the ceramic ring 26 is forcibly fitted to the inner diameter 21 surface with an O-ring (op'), and sealed with a Teflon material The friction member (27') is inserted and fixed in the center pipe (4) together with the O-ring (op) so that it can be frictionally rotated in close contact with the side of the ceramic ring (26), so that the rotating bundle (2) rotates at high speed. It is characterized in that the water leakage can be smoothly prevented even in the state of being.

It is characterized in that a washer (w3) is further interposed between the sealing friction member (27') made of the Teflon material and the ceramic ring (26).

The washer (w3) is characterized in that one side is formed of a glass material, the other side is formed of a ceramic or Teflon material.

The washer (w) (w1) (w2) (w3) is characterized in that it is made of an oilless bearing material.

Characterized in that one or more annular grooves (not shown) for reducing friction are formed on the other side of the sealing friction member 27 ′ made of the Teflon material, that is, the surface that is frictionally rotated in contact with the ceramic ring 26 To do.

The present invention configured as described above is mounted with an O-ring (op) on the inner diameter (21) of the main body (2a) and the ceramic ring (26) configured to rotate integrally with the rotating bundle (2), and the O-ring (op) in the center tube (4). ') and at the same time, by a compression spring (s), a sealing friction member (27') made of a Teflon material that is always pressurized and tightly adhered to the side of the ceramic ring (26) at a high speed during the control process. Even if it rotates, there is no risk of leakage, and also the friction reduction annular groove 26' formed in the ceramic ring 26 or the friction reduction annular shape formed in the sealing friction member 27' made of Teflon material. Since the friction area is greatly reduced due to the groove, frictional heat is minimized, so that it is possible to stably control work for a long time, thereby maximizing reliability.

In addition, a pair of washers (w1) (w2) are installed in the close contact with the Teflon screw (28), and a washer (w) is interposed between the snap ring (sn') and the spacer (27) made of Teflon material for a long time. Even if high heat is generated in the friction area due to use, the wear rate of the spacer 27 or the Teflon screw 28 made of a Teflon material is minimized to extend the life of the part.

1 is a perspective view showing a first embodiment of the present invention.
Figure 2 is a cross-sectional view of an assembly according to the first embodiment of the present invention.
3 is an exploded cross-sectional view showing the first embodiment of the present invention.
4 is a cross-sectional view illustrating an assembly according to a second embodiment of the present invention.
5 is an exploded cross-sectional view according to a second embodiment of the present invention.
6 is an exemplary cross-sectional view of a main part according to a third embodiment of the present invention.

In the present invention, three to four nozzles 11 are radially installed so that the head 1 can rotate in a direction opposite to the spraying direction by a reaction that occurs when spraying medicines through the nozzles 11 , The head (1) and rotating bundle (2) can rotate smoothly and at high speed without using a rolling bearing at all, and at the same time, it can reliably block water leakage, and maximize the durability of the rotating sprayer. As an invention, it will be described in detail with reference to the accompanying drawings as follows.

As shown in the accompanying drawings 1 to 3, the present invention is a rotating injector in which the head 1 rotates in a direction opposite to the medicine injection direction as a reaction that occurs when the medicine is sprayed, and the medicine is naturally vortexed.

In general, a rotary sprayer is radially installed with 3 to 4 nozzle pipes 12 equipped with a nozzle 11 that induces rotation by a reaction by allowing it to be sprayed in a diagonal direction, and inside the space part 13 ) Is formed, the head (1) is mounted, and a rotating bundle (2) configured to prevent leakage as well as smooth and free rotation inside, and the rotating bundle (2) coupled to the outer peripheral surface A propeller (3) which rotates together with the rotating bundle (2) and induces the sprayed medicine to be blown away and wider, and a handle (43) connected to the rotating bundle (2) and provided with an opening/closing valve and a hose at the rear. ) And connected to the center pipe (4).

The configuration of a conventional rotary sprayer that allows the rotational bundle 2 to rotate smoothly is achieved by installing a rolling bearing such as a ball bearing or a roller bearing and a ribena between the rotational assembly 2 and the central pipe 4 to ensure smooth rotation. We sought to prevent leakage, but due to the nature of the rotary sprayer, it is not used for simply spraying water, but because it is controlled by diluting chemical substances such as pesticides in water, bearings are easily corroded and damaged. In addition, since the central pipe 4 is fixed and only the rotating bundle 2 around the central pipe rotates at high speed as a reaction according to the injection pressure, it is very difficult to block water leakage.

Accordingly, the present invention is intended to maximize the reliability of a rotary sprayer by inventing a configuration that rotates more smoothly without any use of rolling bearings such as ball bearings or roller bearings, and at the same time has no risk of leakage.

Hereinafter, the rotary sprayer of the present invention will be described in more detail based on the accompanying drawings FIGS. 1 to 3.

In the present invention, a portion provided with a smooth rotation and leakage prevention structure is a rotating bundle (2).

The rotating bundle (2) consists of a body (2a) and a cap (2b), and the body (2a) is formed in a cylindrical shape so that the female threaded portions (21a) (21a') are formed in a predetermined length at the front and rear of the inner diameter (21). Formed, and inserting and mounting a ceramic ring 26 and a spacer 27 made of a Teflon material at a predetermined position of the inner diameter 21 of the female threaded portion 21a, 21a', and the ceramic ring 26 and the Teflon material The spacer 27 is installed in close contact with the stepped surface (22a) (22a') of the ring protrusion (22) formed at a predetermined position in the center of the inner diameter (21) surface, and between the inner diameter (21) surface and the ceramic ring (26). The ceramic ring 26 and the spacer 27 made of a Teflon material are mounted and fixed to the inner diameter 21 of the rotating bundle 2 and rotated together with the rotating bundle 2.

The center tube 4 is installed through the ceramic ring 26 and the spacer 27 made of Teflon material, and the center tube 4 is inserted through the ceramic ring 26 and the spacer 27 made of Teflon material. Before doing so, first insert a snap ring (sn') into the groove 42' formed at the rear of the grooves 42 and 42' formed at predetermined positions at the front and rear ends of the center pipe 4 and then a washer through the tip of the center pipe 4 (w) and a spacer (27) made of Teflon material are inserted, and then through the hole (22') of the main body (2a), the ceramic ring (26) and the O-ring in the center of the inner diameter through the tip of the center tube (4) Insert the sealing friction ring (27') and compression spring (s) made of Teflon (op) installed in sequence, and then insert a snap ring (sn) into the groove (42), and then assemble it into the female thread (21a). When the male thread part 24 formed at the rear of the cap 2b is fastened, the tapered surface 41 at the tip of the center pipe 4 comes into close contact with the tapered part 25' of the cap 2b, so that the compression spring s becomes Teflon. The sealing friction member (27') made of a material is always in close contact with the side of the ceramic ring (26) to cause friction. At this time, the sealing friction member (27') made of Teflon material is an O-ring on the outer diameter of the center pipe (4). It is mounted and fixed with (op), and the ceramic ring 26 is mounted on the inner diameter 21 of the main body 2a and is fixed, so that the rotation is made of a Teflon material and a sealing friction member 27' and a ceramic ring 26 It is very smooth and smooth due to the material characteristics of) and can completely block leakage.

Next, insert two washers (w1) (w2) through the tail of the center pipe (4) and then fasten the Teflon screw (28) to the female thread (21a') to complete the assembly of the rotating bundle (2). In the state, if the head 1 is assembled to the head coupling portion 23 at the front end of the cap 2b and the handle 43 is assembled at the rear end of the center pipe 4, the assembly of the rotary sprayer is completed.

The present invention configured as described above is equipped with an O-ring (op) on the body (2a) inner diameter (21), the ceramic ring (26) configured to rotate integrally with the rotating bundle (2), and the O-ring ( op') and at the same time, by a compression spring (s), a sealing friction member (27') made of a Teflon material that is always pressed and tightly adhered to the side of the ceramic ring (26) during the control process Even if it rotates at high speed, there is no risk of leakage, and even if the friction surface of the sealing friction member (27') made of Teflon material or the ceramic ring (26) is worn out after a long period of use, it is always caused by the spring (s). It is possible to stably prevent leakage, and by forming an annular groove 26 ′ for reducing friction on the friction surface of the ceramic ring 26 and the sealing friction member 27 ′ made of Teflon material, the friction area is large. As it becomes smaller, the generation of frictional heat is minimized and it can be used for a long time without failure.

4 and 5 are related to a second embodiment of the present invention, which further includes a washer w3 between the sealing friction member 27' made of the Teflon material and the ceramic ring 26, thereby smoothly rotating and It maximizes the effect of preventing leakage.

6 is a third embodiment of the present invention, in which the washer w3 is formed of a glass material having excellent roughness on one side and ceramic or Teflon on the other side.

Further, the washers (w) (w1) (w2) (w3) may be formed of the same material as an oilless bearing.

The present invention constructed as described above is not limited to the above-described embodiments, and thus various modifications can be made within the scope of the object and spirit of the invention.

1: head 2: rotating bundle 2a: main body
2b: cap 3: propeller 4: center tube
11: nozzle 12: nozzle pipe 13: space
21: inner diameter 22': hole 21a, 21a': female thread
22: ring protrusions 22a, 22a': stepped surface 23: head coupling portion
24: male thread part 25: inner wall surface 25': taper part
26: ceramic ring 26': annular groove 27, 27': teflon ring
28: Teflon screw 41: taper surface 42, 42': groove
43: bag op: O-ring s: compression spring
sn, sn': snap ring w, w1, w2, w3: washer

Claims (3)

Three to four nozzle tubes 12 having nozzles 11 sprayed in a diagonal direction at the tip are radially installed, and a head 1 having a space 13 formed therein, and the head 1 at the tip A rotating bundle (2) equipped with a leak-proof structure inside and coupled to the outer circumferential surface of the rotating bundle (2) and rotated with the rotating bundle (2) to induce the sprayed medicine to be blown farther and wider In the rotary sprayer consisting of a propeller (3) and a central pipe (4) connected to the rotating bundle (2) and connected to a handle (43) provided with an on/off valve and a hose at the rear,
Female threaded portions 21a (21a') are formed at the front and rear of the inner diameter, and at a predetermined position inside the inner diameter 21, a hole 22' through which the center pipe 4 passes and stepped surfaces 22a, 22a' on both sides The main body 2a provided with the ring protrusion 22 is formed,
A head coupling part 23 to which the head 1 is fastened is provided at the front end, and a male threaded part 24 fastened to the female threaded part 21a formed on the main body 2a is provided at the rear end, and a tapered part 25 at the tip of the inner diameter. ') and a rotating bundle (2) consisting of a cap (2b) provided with an inner wall surface (25),
The body (2a) inner diameter (21) is in close contact with the stepped surface (22a) (22a') formed on both sides of the ring protrusion (22) and at the same time is tightly fitted to the inner diameter (21) surface to rotate together with the rotating bundle (2). A ceramic ring 26 having an annular groove 26' for reducing friction on the friction surface and a spacer 27 made of Teflon,
It is installed through the spacer 27 made of the Teflon material and the hole 22 ′ of the ring protrusion 22 and the ceramic ring 26, so that the snap ring (sn) (sn') is fitted at predetermined positions at the front and rear ends. Through the center pipe (4) formed with a tapered surface (41) so that the groove (42) (42') is provided and the tip surface is in close contact with the tapered portion (25') of the cap (2b), It is fitted in close contact with the ceramic ring 26, and an O-ring (op) is mounted between the center pipe 4 and provided integrally with the center pipe 4, and a snap ring (sn) and a compression spring ( A sealing friction member 27' made of a Teflon material that is rubbed against the side of the ceramic ring 26 by s) to prevent leakage,
And the body (2a) along with a washer (w) and a snap ring (sn') and one or two washers (w1) (w2) inserted through the tail of the center pipe (4) to support the spacer (27) made of Teflon material. ) It is made of a Teflon screw 28 fastened to the female thread part 21a' at the rear,
The ceramic ring 26 is forcibly fitted to the inner diameter 21 surface together with the O-ring (op'), and the sealing friction member 27' made of Teflon material is inserted together with the O-ring (op) in the center tube 4 Prevents leakage of water from a rotating sprayer, characterized in that it can be fixed and frictionally rotated in a state in close contact with the side of the ceramic ring 26, so that leakage can be smoothly prevented even when the rotating bundle 2 rotates at high speed. Device. The method of claim 1,
One or more friction-reducing annular grooves (26') formed on the friction surfaces of the sealing friction member (27') made of the Teflon material and the ceramic ring (26). The method of claim 1,
A washer (w3) is further interposed between the sealing friction member (27') made of the Teflon material and the ceramic ring (26), but the washer (w3) has one side formed of a glass material, and the other side is ceramic or A water leakage prevention device for a rotary sprayer, characterized in that it is formed of Teflon or that the washers (w) (w1) (w2) (w3) are made of an oilless bearing material.

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