Cleaning spray nozzle

Abstract

The present invention relates to a cleaning spray nozzle in which a linear jet inlet and a spiral jet inlet are integrally formed in one nozzle body and operate organically to selectively spray linear or spiral cleaning water, the lower end of the nozzle tip that forms the spiral cleaning water moves circumferentially around an axis and the upper end of the nozzle tip makes linear contact within a packing, thereby preventing wear caused by friction and forming spiral cleaning water without frictional resistance even with weak water pressure, and a backflow prevention member closes the linear jet inlet when spiral cleaning water is formed, thereby preventing backflow, thereby preventing cleaning water leakage and enabling stable operation.

Description

[Technical Field]

[0001] The present invention relates to a cleaning spray nozzle, and more particularly, to a cleaning spray nozzle that has a linear jet inlet and a spiral jet inlet integrally formed in one nozzle body, which operate organically to selectively spray cleaning water in a linear or spiral shape. The lower end of the nozzle tip that forms the spiral cleaning water moves circumferentially around an axis, and the upper end makes linear contact within a packing, preventing wear due to friction and enabling the formation of spiral cleaning water without frictional resistance even with weak water pressure. When the spiral cleaning water is formed, a backflow prevention member closes the linear jet inlet, preventing backflow, thereby enabling stable operation. [Background technology]

[0002] In general, a cleaning jet nozzle is used to deliver high-pressure cleaning liquid pumped by a pumping means to an object to be cleaned at a long distance.

[0003] An example of such a conventional cleaning spray nozzle is disclosed in Korean Utility Model Registration No. 0291462.

[0004] The cleaning spray nozzle of the prior art includes a guide pipe through which high-pressure cleaning liquid pumped by a pumping means is transferred through a central transfer path, and a spray cap connected to one side of the guide pipe and having a number of spray holes with an inner diameter smaller than that of the guide pipe. Furthermore, an opening / closing means for opening and closing the transfer path to control the transfer of cleaning liquid guided through the guide pipe is provided on the other side of the guide pipe.

[0005] In the conventional cleaning spray nozzle configured as described above, high-pressure cleaning liquid pumped by the pumping means reaches the spray cap on one side of the guide tube through the transfer path of the guide tube, and the high-pressure cleaning liquid that reaches the spray cap is discharged to the outside through the spray hole of the spray cap.

[0006] At this time, the flow rate of the cleaning liquid is increased by the injection holes having an inner diameter smaller than the inner diameter of the guide pipe, and the cleaning liquid reaches the object to be cleaned at a long distance.

[0007] The opening and closing means opens and closes the transfer path of the guide pipe, thereby controlling the discharge of the pumped high-pressure cleaning liquid.

[0008] However, in conventional cleaning spray nozzles, the spray cap is fixed to the guide tube, and the cleaning liquid discharged through the spray hole of the spray cap only has a linear spray force, which limits its ability to effectively clean the surface of the object being cleaned.

[0009] In addition, in order to improve the cleaning effect, the operator must adjust the guide tube in various directions so that the cleaning liquid hits the surface of the object to be cleaned in various directions, which is inconvenient. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Korean Registered Utility Model No. 0291462 Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention has been made to solve these problems, and its purpose is to provide a cleaning spray nozzle that can selectively spray cleaning water in a linear or spiral shape by forming a linear spray inlet and a spiral spray inlet integrally in one nozzle body and operating organically.

[0012] Another object of the present invention is to provide a cleaning spray nozzle in which the lower end of the nozzle tip that forms the spiral of cleaning water moves circumferentially around the axis, and the upper end makes line contact within the packing, thereby not only preventing wear due to friction but also enabling the formation of a spiral of cleaning water without frictional resistance even with weak water pressure.

[0013] Another object of the present invention is to provide a cleaning spray nozzle that prevents cleaning water from leaking and operates stably because the backflow prevention member closes the linear spray inlet when forming a spiral of cleaning water, thereby preventing backflow.

[0014] The object of the present invention is not limited to the above-mentioned object, and other object not mentioned above will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0015] The cleaning spray nozzle of the present invention for solving the above problems includes a nozzle body, a linear jet inlet formed on one side of the nozzle body, a spiral jet inlet formed below the linear jet inlet, a rotating part mounted in a rotation space of the nozzle body and rotated by the cleaning water flowing in through the spiral jet inlet, a spiral action imparting part mounted above the rotating part and moving circumferentially by the rotating part to impart a spiral action to the cleaning water flowing in through the spiral jet inlet, and a spiral action imparting part mounted on the linear jet inlet. and a backflow prevention part that opens the linear jet flow path when wash water flows into the linear jet inlet part, and closes the linear jet flow path when wash water flows into the spiral jet inlet part, preventing backflow.When wash water flows into the linear jet inlet part, the backflow prevention part stops the stop protrusion of the rotating part, so that the wash water is sprayed in a straight line, and when wash water flows into the spiral jet inlet part, pressure is generated inside the nozzle body, so that the backflow prevention part moves away from the stop protrusion, closing the linear jet flow path and spraying the wash water in a spiral.

[0016] The nozzle body includes a rotation space in which the rotating part is mounted and rotates, and an operating space provided above the rotation space and in which the helical action imparting part makes a circumferential movement.

[0017] The rotating part includes a rotating body having rotating blades formed radially, a shaft formed at the center of the lower part of the rotating body and coupled to a groove, a stop protrusion formed at the upper part of the rotating body, an eccentric groove formed eccentrically inside the upper part of the rotating body, and a closing cap fixed to the lower part of the nozzle body in a rotational coupling manner and having a groove formed at its center so that the shaft can be coupled to the closing cap.

[0018] When cleaning water flows into the nozzle body through the spiral injection inlet, the rotating body rotates and the stop protrusion pushes the backflow prevention part toward the linear injection flow path, preventing the backflow of cleaning water.

[0019] The spiral action imparting unit includes: a cover fixed to the top of the nozzle body and through which cleaning water is sprayed through the spray holes; a nozzle tip having an upper end located inside the cover and a lower end coupled to the eccentric groove of the rotating unit, so that when the rotating unit rotates, the lower end moves circumferentially to form a spiral of cleaning water, and the nozzle tip has inlet holes formed radially so that the cleaning water supplied inside the nozzle body is sprayed to the spray holes; a packing attached to the inside of the lower end of the cover to maintain airtightness; and an airtight retaining ring attached between the cover and the nozzle body to prevent cleaning water from leaking outside the nozzle body.

[0020] When the lower end of the nozzle tip is coupled to the eccentric groove and moves in a circular motion, the upper end undergoes a line contact rolling phenomenon, and the line contact structure is characterized by enabling smooth circular motion without frictional resistance even with weak water pressure.

[0021] The backflow prevention unit includes a backflow prevention body attached to the linear injection flow path in the longitudinal direction, a flow path protrusion radially protruding from one end of the backflow prevention body and forming a space through which the cleaning water can pass, and a sealing ring attached to one side of the flow path protrusion and closely contacting the linear injection inlet. [Effects of the Invention]

[0022] According to the present invention, a linear jet inlet and a spiral jet inlet are integrally formed in one nozzle body, which allows for organic operation and selectively spraying cleaning water in a linear or spiral shape.

[0023] Furthermore, according to the present invention, the lower end of the nozzle tip that forms the spiral of cleansing water moves circumferentially around the axis, while the upper end makes line contact within the packing, which not only prevents wear caused by friction, but also has the effect of forming a spiral of cleansing water without frictional resistance even with weak water pressure.

[0024] In addition, according to the present invention, when forming a spiral-shaped cleaning water, the backflow prevention member closes the linear jet inlet, thereby preventing backflow, thereby enabling stable operation. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a perspective view of a cleaning spray nozzle according to the present invention; [Figure 2] 1 is an exploded perspective view of a cleaning spray nozzle according to the present invention; [Figure 3] 1 is a side cross-sectional view of a cleaning spray nozzle according to the present invention. [Figure 4] 4 is a diagram showing a state in which cleaning water is supplied to a linear jet inlet of the present invention and is sprayed linearly through the jet holes. [Figure 5] Same as above. [Figure 6] 4 is a diagram showing a state in which cleaning water is supplied to the spiral jet inlet of the present invention and the cleaning water is jetted spirally through the jet hole. [Figure 7] Same as above. [Figure 8] Same as above. DETAILED DESCRIPTION OF THE INVENTION

[0026] Various embodiments will be described in more detail below with reference to the accompanying drawings. The embodiments described herein may be modified in various ways. Specific embodiments are depicted in the drawings and described in detail in the detailed description. However, the specific embodiments disclosed in the accompanying drawings are merely for the purpose of facilitating understanding of various embodiments. Therefore, the technical concept is not limited to the specific embodiments disclosed in the accompanying drawings, and it should be understood that the invention encompasses all equivalents or alternatives falling within the concept and technical scope of the invention.

[0027] Terms including ordinal numbers, such as "first" and "second," may be used to describe various components, but these components are not limited to the terms described above. The terms described above are used only to distinguish one component from another.

[0028] As used herein, the terms "comprise" or "have" and the like are intended to specify the presence of a stated feature, numeral, step, operation, component, part, or combination thereof, but should be understood as not precluding the presence or additional possibility of one or more other features, numerals, steps, operations, components, parts, or combinations thereof. When a component is described as being "coupled" or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, or that there may be other components intervening therebetween. In contrast, when a component is described as being "directly coupled" or "directly connected" to another component, it should be understood that there are no other components intervening therebetween.

[0029] On the other hand, a "module" or "unit" for a component as used in this specification performs at least one function or operation. A "module" or "unit" can perform a function or operation by hardware, software, or a combination of hardware and software. Furthermore, multiple "modules" or multiple "units" may be integrated into at least one module, except for "modules" or "units" that are to be implemented by specific hardware or at least one processor. The singular expression includes the plural expression unless the context clearly indicates otherwise.

[0030] In addition, when describing the present invention, if it is determined that a specific description of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be shortened or omitted.

[0031] FIG. 1 is a perspective view of a cleaning jet nozzle according to the present invention, FIG. 2 is an exploded perspective view of the cleaning jet nozzle according to the present invention, and FIG. 3 is a side cross-sectional view of the cleaning jet nozzle according to the present invention.

[0032] The cleaning spray nozzle of the present invention comprises a nozzle body 100, a linear jet inlet 200 formed on one side of the nozzle body 100, a spiral jet inlet 300 formed below the linear jet inlet 200, a rotating part 400 mounted in a rotating space 110 of the nozzle body 100 and rotated by the washing water flowing in through the spiral jet inlet 300, a spiral action imparting part 500 mounted on the rotating part 400 and moving circularly with the rotating part 400 to impart a spiral action to the washing water flowing in through the spiral jet inlet 300, and a spiral action imparting part 500 mounted on the linear jet inlet 200 and rotating in the straight and a backflow prevention part 600 that opens the linear injection channel 210 when washing water flows into the spiral injection inlet part 300, and closes the linear injection channel 210 when washing water flows into the spiral injection inlet part 300, thereby preventing backflow. When washing water flows into the linear injection inlet part 200, the backflow prevention part 600 stops the stop protrusion 430 of the rotating part 400, so that the washing water is injected in a straight line. When washing water flows into the spiral injection inlet part 300, pressure is generated inside the nozzle body 100, so that the backflow prevention part 600 moves away from the stop protrusion 430, so that the linear injection channel 210 is closed and the washing water is injected in a spiral.

[0033] The nozzle body 100 forms the basic framework of the injection nozzle, and is provided with a rotation space 110 at the bottom opposite to the cover 510, in which the rotating part 400 is mounted and rotates, and an operating space 120 is formed between the rotation space 110 and the cover 510.

[0034] In addition, the linear injection inlet portion 200 is formed on one side of the nozzle body 100, and a linear injection flow path 210 is formed on the inner side of the linear injection inlet portion 200 on the nozzle body 100 side, and is connected to the working space 120.

[0035] The spiral injection inlet portion 300 is formed in the nozzle body 100 below the linear injection inlet portion 200, and a spiral injection flow path 310 is formed on the inside of the spiral injection inlet portion 300 on the nozzle body 100 side, and is connected to the rotation space 110.

[0036] The linear jet inlet portion 200 and the spiral jet inlet portion 300 are integrally formed and mounted on the nozzle body 100 .

[0037] The rotating part 400 is for spraying cleaning water in a spiral shape and is provided with a rotating body 410 having rotating blades 411 formed radially, and a shaft 420 is formed at the center of the lower part of the rotating body 410.

[0038] A stop protrusion 430 is formed on the top of the rotating body 410 to stop the rotation of the rotating body 410, and a recess is formed in the center of the top of the rotating body 410 with a certain depth, and an eccentric groove 440 is formed at an eccentric position on the bottom surface of the recess.

[0039] A closing cap 450 is formed at the bottom of the rotating body 410 in a rotational coupling manner to close the bottom of the nozzle body 100, and a groove 451 is formed at the center of the top surface of the closing cap 450, into which the shaft 420 is coupled.

[0040] The spiral action imparting part 500 rotates the rotating part 400 and moves in a circular motion so that the supplied cleaning water is sprayed in a spiral shape through the spray holes 511 .

[0041] The spiral action imparting part 500 has a cover 510 fixed to the top of the nozzle body 100, and the cover 510 has an injection hole 511 formed therein to inject cleaning water to the outside.

[0042] A nozzle tip 520 is mounted between the cover 510 and the rotating body 410 .

[0043] The nozzle tip 520 is formed as a shaft type having a certain length, and an upper end 521 is located inside the cover 510, and a lower end 522 is coupled to the eccentric groove 440 of the rotating part 400. The nozzle tip 520 has inlet holes 523 that penetrate radially to allow the inflow of cleaning water.

[0044] When the washing water flows into the rotating part 400 through the spiral jet inlet part 300, the rotating body 410 rotates and the lower end of the nozzle tip 520 makes a circular motion, causing the washing water to form a spiral.

[0045] A packing 530 is attached to the inside of the cover 510, and the upper end 521 of the nozzle tip 520 is fitted inside the packing 530. An airtight ring 540 is attached between the cover 510 and the nozzle body 100 to prevent cleaning water from leaking to the outside.

[0046] Here, when the lower end 522 of the nozzle tip 520 is engaged with the eccentric groove 440 and moves in a circular motion, the upper end 521 undergoes a line contact rolling phenomenon, and this line contact structure allows for smooth circular motion without frictional resistance even with weak water pressure.

[0047] The backflow prevention unit 600 includes a backflow prevention member 610 having a predetermined length and attached to the linear injection flow path 210 .

[0048] The backflow prevention member 610 slides within the linear injection flow path 210 and also serves as a stopper that stops the rotation of the rotating part 400 .

[0049] That is, when washing water flows into the nozzle body 100 through the linear jet inlet portion 200, the backflow prevention member 610 moves due to the pressure of the washing water, stopping the rotation of the stop protrusion 430 of the rotating part 400, and when washing water flows into the nozzle body 100 through the spiral jet inlet portion 300, the backflow prevention member 610 is pushed toward the linear jet inlet portion 200, preventing the backflow of washing water.

[0050] A flow path protrusion 620 is provided at one end of the backflow prevention member 610, protruding radially to form a space for smooth inflow of cleaning water, and a sealing ring 630 is attached to one side of the flow path protrusion 620, thereby closely contacting the linear injection inlet part 200.

[0051] Next, the use of the present invention configured as described above will be described in detail.

[0052] First, as shown in FIGS. 4 and 5, when cleaning water flows into the nozzle body 100 through the linear injection inlet 200, the pressure of the cleaning water presses the backflow prevention member 610 toward the rotating part 400, and the backflow prevention member 610 moves away from the linear injection inlet 200 to open the linear injection flow path 210.

[0053] At this time, the backflow prevention member 610 stops the stop protrusion 430 so that the rotating part 400 does not rotate, and the cleaning water flows into the working space 120 of the nozzle body 100 through the linear injection flow path 210 .

[0054] As described above, the cleaning water flowing into the working space 120 passes through the inlet holes 523 formed radially in the nozzle tip 520, and is then sprayed in a straight line through the spray holes 511 formed in the cover 510.

[0055] 6 to 8, when cleaning water flows into the nozzle body 100 through the spiral jet inlet 300, pressure is generated inside the nozzle body 100 and the rotating body 410 rotates around the axis 420.

[0056] The rotation of the rotary body 410 and the pressure of the washing water pressurize the backflow prevention member 610 toward the linear jet inlet 200, and the sealing ring 630 tightly contacts the end of the linear jet inlet 200 to prevent backflow.

[0057] At this time, the rotating body 410 on which the rotating blades 411 are formed rotates due to the pressure of the cleaning water, and the lower end 522 of the nozzle tip 520 connected to the rotating body 410 performs a circular motion around the axis 420 like the moon revolving around the earth, and the upper end 521 undergoes a line contact rolling phenomenon inside the packing 530.

[0058] During this process, the cleaning water takes a spiral shape, and the spiral cleaning water is sprayed through the inlet holes 523 formed radially in the nozzle tip 520 and the spray holes 511 formed in the cover 510 .

[0059] That is, the present invention can selectively spray washing water in a linear or spiral shape by forming the linear spray inlet 200 and the spiral spray inlet 300 integrally in one nozzle body 100 and operating them in an organic manner.

[0060] In addition, in the present invention, the lower end 522 of the nozzle tip 520 that forms the spiral-shaped cleaning water moves circumferentially around the axis 420, and the upper end 521 is in line contact within the packing 530, so not only is wear caused by friction prevented, but spiral-shaped cleaning water can be formed without frictional resistance even with weak water pressure.

[0061] In addition, when the spiral washing water is formed, the backflow prevention member 610 closes the linear jet inlet 200, thereby preventing backflow and enabling stable operation.

[0062] Although preferred embodiments of the present invention have been illustrated and described, the present invention is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the invention pertains without departing from the gist of the present invention as claimed in the claims, and these modifications should not be understood separately from the technical ideas and perspectives of the present invention.

Claims

1. a nozzle body (100); a linear injection inlet (200) formed on one side of the nozzle body (100); a spiral jet inlet (300) formed below the linear jet inlet (200); a rotating part (400) mounted in the rotating space (110) of the nozzle body (100) and rotated by the washing water flowing in through the spiral jet inlet part (300); a spiral action imparting unit (500) mounted on the upper part of the rotating unit (400) and moving circularly with the rotating unit (400) to impart a spiral action to the washing water flowing in through the spiral jet inlet unit (300); a backflow prevention unit (600) attached to the linear jet inlet (200) for opening the linear jet flow path (210) when the washing water flows into the linear jet inlet (200) and for closing the linear jet flow path (210) when the washing water flows into the spiral jet inlet (300) to prevent backflow, When cleaning water flows into the linear jet inlet (200), the backflow prevention part (600) stops the stop protrusion (430) of the rotating part (400) so that the cleaning water is sprayed in a straight line, and when cleaning water flows into the spiral jet inlet (300), pressure is generated inside the nozzle body (100), so that the backflow prevention part (600) moves away from the stop protrusion (430) to close the linear jet flow path (210), and the cleaning water is sprayed in a spiral.

2. The nozzle body (100) a rotation space (110) in which the rotating part (400) is mounted and rotates; 2. The cleaning spray nozzle according to claim 1, further comprising: an operating space (120) provided above the rotation space (110) and in which the spiral action imparting portion (500) moves circumferentially.

3. The rotating part (400) A rotating body (410) on which rotating blades (411) are formed radially; a shaft (420) formed at the center of the lower portion of the rotating body (410) and coupled to a groove (451); a stop protrusion (430) formed on the upper part of the rotating body (410); an eccentric groove (440) formed eccentrically on the inner side of the upper portion of the rotating body (410); 2. The cleaning spray nozzle according to claim 1, further comprising: a closing cap (450) fixed to a lower portion of the nozzle body (100) in a rotational coupling manner, the closing cap having a groove (451) formed in a center portion thereof so that the shaft (420) can be coupled thereto.

4. 4. The cleaning spray nozzle according to claim 3, wherein when cleaning water flows into the nozzle body (100) through the spiral spray inlet (300), the rotating body (410) rotates and the stop protrusion (430) pushes the backflow prevention part (600) toward the straight spray flow path (210), thereby preventing backflow of cleaning water.

5. The spiral action imparting portion (500) is a cover (510) fixed on the upper part of the nozzle body (100) and through which cleaning water is sprayed through a spray hole (511); a nozzle tip (520) having inflow holes (523) formed radially so that its upper end (521) is positioned inside the cover (510) and its lower end (522) is coupled to the eccentric groove (440) of the rotating part (400), so that when the rotating part (400) rotates, the lower end (522) moves circumferentially to form a spiral of cleaning water, and cleaning water supplied inside the nozzle body (100) is sprayed to the spray hole (511); a packing (530) attached to the inside of the lower end of the cover (510) to maintain airtightness; 2. The cleaning spray nozzle according to claim 1, further comprising an airtight retaining ring (540) attached between the cover (510) and the nozzle body (100) to prevent cleaning water from leaking outside the nozzle body (100).

6. 6. The cleaning spray nozzle according to claim 5, wherein when the lower end (522) of the nozzle tip (520) is engaged with the eccentric groove (440) and moves in a circular motion, the upper end (521) undergoes a line contact rolling phenomenon, and the line contact structure allows for smooth circular motion without frictional resistance even with weak water pressure.

7. The backflow prevention unit (600) a backflow prevention body (610) attached to the linear injection flow path (210) in the longitudinal direction; a flow path protrusion (620) that protrudes radially from one end of the backflow prevention body (610) and forms a space through which cleaning water can pass; 2. The cleaning spray nozzle according to claim 1, further comprising a sealing ring (630) attached to one side of the flow path protrusion (620) and closely contacting the linear spray inlet (200).

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