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 in which a linear jet inlet and a spiral jet inlet are integrally formed in one nozzle body, and the linear jet inlet and spiral jet inlet 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 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. When spiral cleaning water is formed, a backflow prevention member closes the linear jet inlet, thereby preventing backflow, and thus the cleaning spray nozzle can operate stably. [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 tube 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 tube and having a number of spray holes with an inner diameter smaller than that of the guide tube. Further, an opening / closing means for opening and closing the transfer path to control the transfer of the cleaning liquid guided through the guide tube is provided on the other side of the guide tube.

[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 hole 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 transfer path of the guide pipe is opened and closed by the opening and closing means, 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 effectiveness in cleaning the surface of the object to be cleaned.

[0009] Also, 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 object 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, which forms a spiral of cleaning water, moves circumferentially around an axis, and the upper end makes line contact within the gasket, thereby not only preventing wear caused by 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 which prevents cleaning water from leaking and operates stably because the backflow prevention member closes the linear jet inlet when forming a spiral cleaning water, thereby preventing backflow.

[0014] The object of the present invention is not limited to the above-mentioned object, and other object not described 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 on the upper part of the rotating part and imparting a spiral action to the cleaning water flowing in through the spiral jet inlet while moving circumferentially due to the rotating part, and a spiral action imparting part mounted on the linear jet inlet. and a backflow prevention part which opens the linear injection flow passage when cleaning water flows into the linear injection inlet and closes the linear injection flow passage when cleaning water flows into the spiral injection inlet to prevent backflow. When cleaning water flows into the linear injection inlet, the backflow prevention part stops the stop protrusion of the rotating part so that the cleaning water is sprayed in a straight line, and when cleaning water flows into the spiral injection inlet, pressure is generated inside the nozzle body so that the backflow prevention part moves away from the stop protrusion, closing the linear injection flow passage and spraying the cleaning 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 a helical action imparting part moves circumferentially.

[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 on the inner 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 thereto.

[0018] When the 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 straight injection flow path to prevent the backflow of the cleaning water.

[0019] The spiral action imparting part includes a cover fixed to an upper part of the nozzle body and through which cleaning water is sprayed through a spray hole, a nozzle tip having an upper end located inside the cover and a lower end coupled to an eccentric groove of a rotating part, so that when the rotating part rotates, the lower end moves circumferentially to form a spiral of cleaning water, and the cleaning water supplied inside the nozzle body is sprayed to the spray hole, a packing attached to the inside of the lower end of the cover to maintain airtightness, and an airtightness retaining ring attached between the cover and the nozzle body to prevent the 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 part includes a backflow prevention body attached to the linear injection flow passage in a longitudinal direction, a flow passage 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 passage protrusion and closely contacting the linear injection inlet part. Effect 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, so that cleaning water can be selectively sprayed in a linear or spiral shape while operating organically.

[0023] Furthermore, according to the present invention, the lower end of the nozzle tip which forms the spiral cleansing water moves circularly 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 cleansing water without frictional resistance even with weak water pressure.

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

[0025] [Figure 1] 1 is a perspective view of a cleaning spray nozzle according to the present invention; [Diagram 2] 1 is an exploded perspective view of a cleaning spray nozzle according to the present invention; [Diagram 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 a jet hole. [Diagram 5] Same as above. [Figure 6] 4 is a diagram showing a state in which cleaning water is supplied to a spiral jet inlet of the present invention and the cleaning water is jetted in a spiral shape through a jet hole. [Figure 7] Same as above. [Figure 8] Same as above. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described in this specification can be modified in various ways. Specific embodiments are depicted in the drawings and can be described in detail in the detailed description. However, the specific embodiments disclosed in the accompanying drawings are merely for the purpose of making the various embodiments easily understandable. Therefore, the technical idea is not limited to the specific embodiments disclosed in the accompanying drawings, and it should be understood that the invention includes all equivalents or alternatives included in the idea and technical scope of the invention.

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

[0028] In this specification, the terms "comprise" or "have" are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and should be understood as not precluding the presence or addition of one or more other features, numbers, 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 there may be another component between them. In contrast, when a component is described as being "directly coupled" or "directly connected" to another component, it should be understood that there is no other component between them.

[0029] On the other hand, a "module" or "unit" for a component 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. In addition, a plurality of "modules" or a plurality of "units" may be integrated into at least one module, except for a "module" or "unit" that is to be performed by a specific piece of hardware or at least one processor. A singular expression includes a plural expression unless the context clearly indicates a different meaning.

[0030] In addition, when describing the present invention, if it is determined that a specific description of related publicly 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 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 imparting a spiral action to the washing water flowing in through the spiral jet inlet 300 while moving in a circular motion due to the rotating part 400, and a spiral action imparting part 500 mounted on the linear jet inlet 200 and rotating in a straight line. and a backflow prevention part 600 which opens the linear injection passage 210 when the washing water flows into the spiral injection inlet 300, and closes the linear injection passage 210 when the washing water flows into the spiral injection inlet 300 to prevent backflow. When the washing water flows into the linear injection inlet 200, the backflow prevention part 600 stops the stop protrusion 430 of the rotating part 400, so that the washing water is sprayed in a linear shape. When the washing water flows into the spiral injection inlet 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 passage 210 is closed and the washing water is sprayed in a spiral shape.

[0033] The nozzle body 100 forms the basic framework of the injection nozzle, and a rotation space 110 in which the rotating part 400 is mounted and rotates is provided at the lower part opposite to the cover 510, 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 passage 210 is formed on the inner side of the linear injection inlet portion 200 on the nozzle body 100 side and communicates with the working space 120 .

[0035] The spiral injection inlet 300 is formed in the nozzle body 100 below the linear injection inlet 200, and a spiral injection flow passage 310 is formed on the inner side of the spiral injection inlet 300 on the nozzle body 100 side and communicates with the rotation space 110.

[0036] The straight jet inlet 200 and the spiral jet inlet 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 on which rotating blades 411 are 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 for stopping the rotation of the rotating body 410 is formed on the upper part of the rotating body 410, and a recess is formed at the center of the upper part of the rotating body 410 to 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 lower part of the rotating body 410 by a rotational coupling method to close the lower part of the nozzle body 100, and a groove 451 is formed at the center of the upper surface of the closing cap 450 to which the shaft 420 is coupled.

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

[0041] The helical action imparting part 500 has a cover 510 fixed to the upper part 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 inflow 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-shaped jet inlet part 300, the rotating body 410 rotates and the lower end of the nozzle tip 520 makes a circular motion, so that the washing water forms a spiral.

[0045] A packing 530 is attached to the inside of the cover 510, and an upper end 521 of the nozzle tip 520 is fitted into the inside of 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 the 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 certain length and mounted on the straight injection passage 210 .

[0048] The backflow prevention member 610 slides within the linear injection flow passage 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 straight-line jet inlet part 200, the backflow prevention member 610 moves due to the pressure of the washing water and stops 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 part 300, the backflow prevention member 610 is pushed toward the straight-line jet inlet part 200 to prevent the backflow of the washing water.

[0050] A flow passage protrusion 620 is provided at one end of the backflow prevention member 610, protruding radially to form a space for the washing water to smoothly flow in, and a sealing ring 630 is attached to one side of the flow passage protrusion 620, so that the flow passage protrusion 620 is closely attached to 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 backflow prevention member 610 is pressed toward the rotating part 400 by the pressure of the cleaning water, 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 straight injection passage 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 the washing 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 backflow prevention member 610 is pressed toward the straight-line jet inlet 200 by the rotation of the rotating body 410 and the pressure of the washing water, and the sealing ring 630 comes into close contact with the end of the straight-line 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 forms a spiral, 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 is capable of selectively spraying cleaning water in a straight or spiral shape by forming a linear jet inlet 200 and a spiral jet inlet 300 integrally in one nozzle body 100 and operating organically.

[0060] In addition, in the present invention, the lower end 522 of the nozzle tip 520 which forms the spiral-shaped cleaning water moves circumferentially around the axis 420, and the upper end 521 makes line contact within the packing 530, so not only is it possible to prevent wear caused by friction, but it is also possible to form a spiral-shaped cleaning water 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, so that backflow can be prevented, and stable operation is possible.

[0062] Although the 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 such 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 at the lower part of 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 helical action imparting part (500) mounted on the upper part of the rotating part (400) and performing a circular motion by the rotating part (400) to impart a helical action to the washing water flowing in through the helical jet inlet part (300); a backflow prevention unit (600) attached to the linear jet inlet (200) for opening the linear jet flow passage (210) when the washing water flows into the linear jet inlet (200) and for closing the linear jet flow passage (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) to spray the cleaning water in a linear manner, and when cleaning water flows into the spiral jet inlet (300), pressure is generated inside the nozzle body (100) and 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 manner.

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

3. The rotating part (400) is A rotating body (410) on which rotating blades (411) are radially formed; 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 and having a groove (341) formed in a center portion thereof so that a 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 injection inlet portion (300), the rotating body (410) rotates and the stop protrusion (430) pushes the backflow prevention portion (600) toward the straight injection flow path (210) to prevent backflow of the cleaning water.

5. The helical action imparting portion (500) is a cover (510) fixed to the upper part of the nozzle body (100) and for injecting cleaning water through an injection hole (511); a nozzle tip (530) having inlet holes (523) formed radially so that an upper end (521) is located inside the cover (510) and a lower end (522) is coupled to an 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) mounted 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 smooth circular motion without frictional resistance even with weak water pressure.

7. The backflow prevention unit (600) is a backflow prevention body (610) mounted in the length direction of the straight injection flow passage (210); A flow passage protrusion (620) protruding radially from one end of the backflow prevention body (610) and forming 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 passage protrusion (620) and closely contacting the linear spray inlet (200).

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