Cleaning spray nozzle

Abstract

The present invention relates to a spray nozzle for cleaning, in which a linear spray inlet and a spiral spray inlet are integrally formed in a nozzle body, so that linear and spiral washing water are selectively sprayed while the operation is organically performed, and in which since the lower end of the nozzle tip forming the spiral washing water performs circumferential movement around the shaft and the upper end performs linear contact within the gasket, not only the abrasion phenomenon due to friction can be prevented, but also the spiral washing water can be formed without frictional resistance even under weak water pressure, and when the spiral washing water is formed, the reverse flow preventing member closes the linear spray inlet, so that reverse flow can be prevented, thereby preventing the leakage of washing water and stably performing the operation.

Description

Technical Field

[0001] This invention relates to a cleaning spray nozzle, and more specifically, to a cleaning spray nozzle in which a straight spray inlet and a spiral spray inlet are integrally formed in a nozzle body, thereby enabling organic operation and selective spraying of straight and spiral washing water. Since the lower end of the nozzle tip forming the spiral washing water moves in a circular motion around an axis, and the upper end makes line contact within a sealing gasket, wear caused by friction is prevented. Furthermore, even under low water pressure, spiral washing water can be formed without frictional resistance. When spiral washing water is formed, a backflow prevention component seals the straight spray inlet, thus preventing backflow and enabling stable operation. Background Technology

[0002] Typically, cleaning spray nozzles are used to deliver high-pressure cleaning liquid, drawn by a suction unit, to objects to be cleaned at a distance.

[0003] The prior art for this cleaning spray nozzle is disclosed in Korean Utility Model Publication No. 0291462.

[0004] Existing cleaning nozzles are made by combining a conduit and a spray cap. The conduit carries high-pressure cleaning liquid, drawn in by a suction unit, through a central transport path. The spray cap is attached to one side of the conduit and is equipped with multiple spray holes having an inner diameter smaller than that of the guide tube. Furthermore, to control the transport of the cleaning liquid guided through the conduit, an opening / closing unit for opening and closing the transport path is provided on the other side of the conduit.

[0005] In the prior art cleaning spray nozzle configured as described above, high-pressure cleaning liquid drawn by the suction unit reaches the spray cover on one side of the conduit through the transport path of the conduit, and the high-pressure cleaning liquid that reaches the spray cover is discharged to the outside through the spray hole of the spray cover.

[0006] At this time, the flow rate of the cleaning liquid increases due to the spray hole having an inner diameter smaller than that of the conduit, thus allowing the cleaning liquid to reach the object to be cleaned at a distance.

[0007] However, in existing cleaning spray nozzles, since the spray cover is fixed to the conduit, the cleaning liquid discharged through the spray hole of the spray cover only has a linear jet force, which limits its effectiveness in cleaning the surface of the object being cleaned.

[0008] Furthermore, in order to improve the cleaning effect, operators need to adjust the conduit in various directions, which is inconvenient for operations that require the cleaning liquid to collide with the surface of the object being cleaned in various directions. Summary of the Invention

[0009] Technical issues

[0010] The present invention is proposed to solve the problems described above. The object of the present invention is to provide a cleaning spray nozzle in which a straight spray inlet and a spiral spray inlet are integrally formed in a nozzle body, thereby operating organically and selectively spraying straight and spiral washing water.

[0011] Furthermore, another object of the present invention is to provide a cleaning spray nozzle in which the lower end of the nozzle tip that forms a spiral washing water moves in a circular motion around an axis and the upper end makes line contact within a sealing gasket, thus preventing wear caused by friction and forming a spiral washing water without frictional resistance even under weak water pressure.

[0012] Furthermore, another object of the present invention is to provide a cleaning spray nozzle in which, when a spiral washing water is formed, a backflow prevention component closes the straight spray inlet, thereby preventing backflow, thus preventing leakage of washing water and ensuring stable operation.

[0013] The technical problems of this invention are not limited to those mentioned above, and those skilled in the art will clearly understand other technical problems not mentioned below through the following description.

[0014] Technical solution

[0015] The cleaning spray nozzle of the present invention, which solves the above-mentioned technical problems, includes: a nozzle body; a straight spray inlet portion formed on one side of the nozzle body, and having a straight spray flow path formed on the inner side of the side adjacent to the nozzle body; a spiral spray inlet portion formed at the lower part of the straight spray inlet portion; a rotating portion installed in the rotation space of the nozzle body and rotating by the washing water flowing in through the spiral spray inlet portion; and a spiral action imparting portion installed at the upper part of the rotating portion, which performs circumferential motion by the rotating portion and simultaneously imparts a spiral action to the washing water flowing in through the spiral spray inlet portion. A swirling motion and a backflow prevention unit are installed on the straight jet inlet. If washing water flows into the straight jet inlet, the straight jet flow path is opened. If washing water flows into the spiral jet inlet, the straight jet flow path is closed, thereby preventing backflow. Specifically, if washing water flows into the straight jet inlet, the backflow prevention unit stops the stop protrusion of the rotating part so that the washing water is sprayed in a straight shape. If washing water flows into the spiral jet inlet, pressure is generated inside the nozzle body so that the backflow prevention unit disengages from the stop protrusion and closes the straight jet flow path, while the washing water is sprayed in a spiral shape.

[0016] The nozzle body includes: a rotation space, on which the rotating part is mounted and rotates; and an operating space, located on the upper part of the rotation space, which enables the spiral motion-giving part to perform circular motion.

[0017] The rotating part includes: a rotating body with rotating blades formed radially; a shaft formed at the lower center of the rotating body; a stop protrusion formed at the upper part of the rotating body; an eccentric groove formed eccentrically on the upper inner side of the rotating body; and a tail cover fixed to the lower part of the nozzle body by rotational connection, and having a groove formed at the center for shaft connection.

[0018] The invention is characterized in that, in the rotating body, if washing water flows into the nozzle body through the spiral jet inlet, the rotating body rotates, and at the same time, the stop protrusion pushes the backflow prevention part to the straight jet flow path side to prevent the backflow of washing water.

[0019] The spiral motion-improving part includes: a cover fixed to the upper part of the nozzle body, forming a spray hole for spraying washing water; a nozzle tip, the upper end of which is located inside the cover, and the lower end which is engaged with the eccentric groove of the rotating part. When the rotating part rotates, the lower end performs a circular motion and forms a spiral washing water, and has radially formed inflow holes, so that the washing water supplied to the inside of the nozzle body is sprayed through the spray hole; a sealing gasket installed inside the lower end of the cover to maintain airtightness; and an airtight retaining ring installed between the cover and the nozzle body to prevent washing water from leaking to the outside of the nozzle body.

[0020] The invention is characterized in that when the lower end of the nozzle tip is engaged with the eccentric groove to perform circular motion, a line contact rolling phenomenon occurs at the upper end. The line contact structure can perform circular motion smoothly without frictional resistance even under weak water pressure.

[0021] The backflow prevention section may include: a backflow prevention component installed along the length of the linear jet flow path; a flow path protrusion formed radially at one end of the backflow prevention component to form a space for the washing water to pass through; and a sealing ring installed on one side of the flow path protrusion and in close contact with the linear jet inlet.

[0022] Beneficial effects

[0023] According to the present invention, the following effects can be achieved: a straight jet inlet and a spiral jet inlet are integrally formed in a nozzle body, thereby enabling organic operation and selective jetting of straight and spiral washing water.

[0024] According to the present invention, the following effects can be achieved: since the lower end of the nozzle tip that forms the spiral washing water moves in a circular motion around the axis and the upper end makes line contact within the sealing gasket, not only can wear caused by friction be prevented, but also the spiral washing water can be formed without frictional resistance even under weak water pressure.

[0025] According to the present invention, the following effects can be achieved: when the spiral washing water is formed, the backflow prevention component closes the straight jet inlet, thereby preventing backflow and enabling stable operation. Attached Figure Description

[0026] Figure 1 This is a perspective view of a cleaning spray nozzle according to the present invention.

[0027] Figure 2 This is a three-dimensional view of the cleaning spray nozzle according to the present invention.

[0028] Figure 3 This is a side cross-sectional view of a cleaning spray nozzle according to the present invention.

[0029] Figures 4 to 5 This is a diagram showing the state of supplying washing water to the linear jet inlet section of the present invention and spraying linear washing water through the jet orifice.

[0030] Figures 6 to 8 This is a diagram showing the state of supplying washing water to the spiral jet inlet section of the present invention and spraying the spiral washing water through the jet orifice. Detailed Implementation

[0031] In the following description, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described herein can be varied in many ways. Specific embodiments may be described in the drawings, and detailed descriptions can be carefully provided. However, the specific embodiments disclosed in the drawings are only for easy understanding of various embodiments. Therefore, the technical concept is not limited to the specific embodiments disclosed in the drawings and should be understood to include all equivalents or alternatives encompassed within the scope of the inventive idea and technology.

[0032] Ordinal terms such as "first," "second," etc., are used to describe multiple constituent elements, but such constituent elements are clearly not limited to the terms mentioned above. The terms mentioned above are used only for the purpose of distinguishing one constituent element from another.

[0033] In this specification, terms such as "comprising" or "having" are used to specify the presence of features, numbers, steps, operations, constituent elements, components, or combinations thereof described in the specification, and should be understood as not precluding the possibility of the presence or addition of one or more other features or numbers, steps, operations, constituent elements, components, or combinations thereof. When referring to one constituent element as being "connected" or "attached" to another constituent element, it should be understood that it can be directly connected or attached to the other constituent element, but other constituent elements may be present in between. Conversely, when referring to one constituent element as being "directly connected" or "directly attached" to another constituent element, it should be understood that no other constituent elements are present in between.

[0034] Furthermore, at least one function or operation is performed with respect to the constituent element "module" or "section" as used in this specification. Additionally, a "module" or "section" can perform a function or operation through hardware, software, or a combination of hardware and software. Moreover, multiple "modules" or "sections" other than those that should be executed in specific hardware or in at least one processor can be combined into at least one module. Unless otherwise expressly indicated in the context, the singular includes the plural.

[0035] In addition, in the process of describing the present invention, detailed descriptions of related well-known functions or structures will be abbreviated or omitted if it is determined that such detailed descriptions may obscure the main points of the present invention.

[0036] Figure 1 This is a perspective view of a cleaning spray nozzle according to the present invention. Figure 2 This is a three-dimensional view of the cleaning spray nozzle according to the present invention. Figure 3 This is a side cross-sectional view of a cleaning spray nozzle according to the present invention.

[0037] The cleaning spray nozzle of the present invention includes: a nozzle body 100; a linear spray inflow section 200 formed on one side of the nozzle body 100; a spiral spray inflow section 300 formed at the lower part of the linear spray inflow section 200; a rotating section 400 installed in the rotating space 110 of the nozzle body 100, which rotates by the washing water flowing in through the spiral spray inflow section 300; a spiral motion imparting section 500 installed on the upper part of the rotating section 400, which performs circumferential motion by the rotating section 400 and imparts a spiral motion to the washing water flowing in through the spiral spray inflow section 300; and a backflow prevention section 600 installed in the linear spray inflow section 200, which opens the linear spray flow path 210 if washing water flows into the linear spray inflow section 200, and closes the linear spray flow path 210 if washing water flows into the spiral spray inflow section 300, thereby preventing backflow. If the washing water flows into the straight jet inlet section 200, the backflow prevention section 600 stops the stop protrusion 430 of the rotating section 400 so that the washing water is sprayed in a straight shape. If the washing water flows into the spiral jet inlet section 300, pressure is generated inside the nozzle body 1000 so that the backflow prevention section 600 disengages from the stop protrusion 430 and closes the straight jet flow path 210, while the washing water is sprayed in a spiral shape.

[0038] The nozzle body 100 serves as the basic framework for forming the jet nozzle. On the opposite side (i.e., the lower part) of the cover 510, a rotation space 110 is provided for mounting and rotating the rotating part 400. An operating space 120 is formed between the rotation space 110 and the cover 510.

[0039] Furthermore, the linear jet inflow portion 200 is formed on one side of the nozzle body 100, and a linear jet flow path 210 is formed on the inner side of the linear jet inflow portion 200 adjacent to the nozzle body 100, thereby communicating with the operating space 120.

[0040] The spiral jet inflow section 300 is formed on the nozzle body 100 below the straight jet inflow section 200, and a spiral jet flow path 310 is formed on the inner side of the spiral jet inflow section 300 on the side adjacent to the nozzle body 100, thereby communicating with the rotation space 110.

[0041] The straight jet inflow section 200 and the spiral jet inflow section 300 are integrated and mounted on the nozzle body 100.

[0042] Furthermore, the rotating part 400 is used to spray washing water in a spiral shape, and is equipped with a rotating body 410 with rotating blades 411 formed radially, and a shaft 420 is formed in the lower center of the rotating body 410.

[0043] A stop protrusion 430 is formed on the upper part of the rotating body 410 to stop the rotation operation of the rotating body 410. The central part of the upper part of the rotating body 410 is recessed to a predetermined depth, and an eccentric groove 440 is formed at an eccentric position on the recessed bottom surface.

[0044] A finishing cover 450 is formed at the lower part of the rotating body 410, which is coupled in a rotational manner and finishes the lower part of the nozzle body 100. A groove 451 is formed in the center of the upper surface of the finishing cover 450 for the shaft 420 to engage.

[0045] Furthermore, the spiral motion imparting part 500 performs a circular motion so that while the rotating part 400 rotates, the supplied washing water is sprayed in a spiral shape through the spray hole 511.

[0046] In the spiral motion imparting part 500, the cover 510 is fixed to the upper part of the nozzle body 100, and the cover 510 has a spray hole 511 for spraying washing water to the outside.

[0047] A nozzle tip 520 is installed between the cover 510 and the rotating body 410.

[0048] The nozzle tip 520 is formed as a shaft of a predetermined length, with the upper end 521 located inside the cover 510 and the lower end 522 engaging with the eccentric groove 440 of the rotating part 400. The nozzle tip 520 has radially penetrating inlet holes 523 to allow washing water to flow in.

[0049] For the nozzle tip 520, if the washing water flows into the rotating part 400 through the spiral jet inlet 300, the rotating body 410 rotates, the lower end of the nozzle tip 520 moves in a circular motion, and the washing water is formed in a spiral shape.

[0050] A sealing gasket 530 is installed on the inner side of the cover 510, and the upper end 521 of the nozzle tip 520 is inserted into the inner side of the sealing gasket 530. An airtight retaining ring 540 is installed between the cover 510 and the nozzle body 100 to prevent washing water from leaking to the outside.

[0051] Here, when the lower end 522 of the nozzle tip 520 engages with the eccentric groove 440 to perform circular motion, a line contact rolling phenomenon occurs at the upper end 521, and the line contact structure can perform circular motion smoothly without frictional resistance even under weak water pressure.

[0052] Furthermore, the backflow prevention unit 600 is equipped with a backflow prevention component 610 installed along the length direction at a predetermined length in the straight jet flow path 210.

[0053] The backflow prevention component 610 slides within the straight jet flow path 210 and also acts as a stopper to prevent the rotation of the rotating part 400.

[0054] That is, if the washing water flows into the nozzle body 100 through the straight jet inlet 200, the backflow prevention member 610 moves under the pressure of the washing water to interrupt the rotation of the stop protrusion 430 of the rotating part 400. If the washing water flows into the nozzle body 100 through the spiral jet inlet 300, the backflow prevention member 610 is pushed towards the straight jet inlet 200 side to prevent the washing water from flowing back.

[0055] A flow path protrusion 620 is provided on one end of the backflow prevention component 610, which is formed in a radial shape to allow washing water to flow smoothly into the space. A sealing ring 630 is installed on one side of the flow path protrusion 620 to fit tightly against the straight jet inlet portion 200.

[0056] Next, the usage of the present invention as described above will be explained in detail.

[0057] First, such as Figures 4 to 5 As shown, if washing water flows into the nozzle body 100 through the straight jet inlet 200, the backflow prevention component 610 is pressurized towards the rotating part 400 by the pressure of the washing water, and the backflow prevention component 610 is separated from the straight jet inlet 200 to open the straight jet flow path 210.

[0058] At this time, the backflow prevention component 610 stops the stop protrusion 430 so that the rotating part 400 does not rotate, and the washing water flows into the operating space 120 of the nozzle body 100 through the straight jet flow path 210.

[0059] As described above, the washing water flowing into the operating space 120 is sprayed in a straight line shape through the spray holes 511 formed on the cover 510 after passing through the inflow holes 523 formed radially on the nozzle tip 520.

[0060] And, as Figures 6 to 8 As shown, if the washing water flows into the nozzle body 100 through the spiral jet inlet 300, pressure is generated inside the nozzle body 100, and at the same time the rotating body 410 rotates around the axis 420.

[0061] Due to the rotation of the rotating body 410 and the pressure of the washing water, the backflow prevention component 610 is pressurized toward the straight jet inlet 200, and the sealing ring 630 is tightly attached to the end of the straight jet inlet 200 and is in a state of preventing backflow.

[0062] At this time, the rotating body 410 with rotating blades 411 rotates under the pressure of the washing water, and the lower end 522 of the nozzle tip 520 combined with the rotating body 410 moves in a circular motion around the axis 420 (i.e., like the moon revolving around the earth), and the upper end 521 rolls in line contact inside the sealing gasket 530.

[0063] In this process, the washing water is in a spiral shape and is sprayed through the inlet hole 523 formed radially at the nozzle tip 520 and the spray hole 511 formed on the cover 510.

[0064] That is, in this invention, a straight jet inflow section 200 and a spiral jet inflow section 300 are integrally formed in a nozzle body 100, thereby organically operating and selectively jetting straight and spiral washing water.

[0065] Furthermore, since the lower end 522 of the nozzle tip 520 that forms the spiral washing water moves in a circular motion around the axis 420, and the upper end 521 makes line contact within the sealing gasket 530, it can not only prevent wear caused by friction, but also form the spiral washing water without frictional resistance even under weak water pressure.

[0066] Furthermore, when the washing water forms a spiral shape, the backflow prevention component 610 closes the straight jet inlet 200, thus preventing backflow and enabling stable operation.

[0067] The preferred embodiments of the present invention have been illustrated and described above. However, the present invention is not limited to the specific embodiments described above, and various modifications can be made by those skilled in the art without departing from the spirit of the invention as claimed in the claims. Such modifications should not be understood independently of the technical concept or prospects of the present invention.

Claims

1. A cleaning spray nozzle, characterized in that, include: Nozzle body (100); A straight jet inflow section (200) is formed on one side of the nozzle body (100), and a straight jet flow path (210) is formed on the inner side of the side adjacent to the nozzle body (100). A spiral jet inlet section (300) is formed at the lower part of the straight jet inlet section (200); The rotating part (400) is installed in the rotating space (110) of the nozzle body (100) and rotates by the washing water flowing in through the spiral jet inlet (300); A spiral motion imparting part (500) is installed on the upper part of the rotating part (400), and performs a circular motion by means of the rotating part (400), while imparting a spiral motion to the washing water flowing in through the spiral jet inlet part (300). as well as A backflow prevention unit (600) is installed in the straight jet inlet (200). If washing water flows into the straight jet inlet (200), the straight jet flow path (210) is opened; if washing water flows into the spiral jet inlet (300), the straight jet flow path (210) is closed, thereby preventing backflow. If washing water flows into the straight jet 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 straight shape. If washing water flows into the spiral jet inlet (300), pressure is generated inside the nozzle body (100) so that the backflow prevention part (600) disengages from the stop protrusion (430) and closes the straight jet flow path (210), while the washing water is sprayed in a spiral shape.

2. The cleaning spray nozzle according to claim 1, characterized in that, The nozzle body (100) includes: A rotating space (110) is provided with the rotating part (400) and the rotating part (400) is rotated. An operating space (120) is provided on the upper part of the rotating space (110) and causes the spiral motion-giving part (500) to perform circular motion.

3. The cleaning spray nozzle according to claim 1, characterized in that, The rotating part (400) includes: The rotating body (410) has rotating blades (411) arranged radially; A shaft (420) is formed at the lower center of the rotating body (410); A stop protrusion (430) is formed on the upper part of the rotating body (410); An eccentric groove (440) is eccentrically formed on the upper inner side of the rotating body (410); and The tail cover (450) is fixed to the lower part of the nozzle body (100) by rotational connection, and a groove (451) is formed in the center for connection with the shaft (420).

4. The cleaning spray nozzle according to claim 3, characterized in that, In the rotating body (410), if washing water flows into the nozzle body (100) through the spiral jet inlet (300), the rotating body (410) rotates, and at the same time the stop protrusion (430) pushes the backflow prevention part (600) toward the straight jet flow path (210) to prevent backflow of washing water.

5. The cleaning spray nozzle according to claim 3, characterized in that, The spiral motion imparting unit (500) includes: The cover (510) is fixed to the upper part of the nozzle body (100) and has a spray hole (511) for spraying washing water. The nozzle tip (520) has an upper end (521) located inside the cover (510) and a lower end (522) connected to the eccentric groove (440) of the rotating part (400). When the rotating part (400) rotates, the lower end (522) makes a circular motion and forms a spiral washing water, and has radially formed inflow holes (523) so that the washing water supplied to the nozzle body (100) is sprayed through the spray holes (511). A sealing gasket (530) is installed on the inner side of the lower end of the cover (510) to maintain an airtight seal; and An airtight retaining ring (540) is installed between the cover (510) and the nozzle body (100) to prevent washing water from leaking to the outside of the nozzle body (100).

6. The cleaning spray nozzle according to claim 5, characterized in that, When the lower end (522) of the nozzle tip (520) engages with the eccentric groove (440) to perform circular motion, a line contact rolling phenomenon occurs at the upper end (521). The line contact structure can perform circular motion smoothly without frictional resistance even under weak water pressure.

7. The cleaning spray nozzle according to claim 1, characterized in that, The backflow prevention unit (600) includes: A backflow prevention component (610) is installed along the length of the straight jet flow path (210); A flow path protrusion (620) is formed radially at one end of the backflow prevention component (610) to create a space for the washing water to pass through; and A sealing ring (630) is installed on one side of the flow path protrusion (620) and is in close contact with the straight jet inlet (200).

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