Tableware cleaning device

Abstract

A container washing machine according to various embodiments of the present invention is disclosed. The container washing machine comprises a nozzle part including a nozzle head part having a nozzle hole formed for spraying washing water and a nozzle base part connected to the lower part of the nozzle head part, and a fastening part including a fastening head part detachably connected to the nozzle base part and a fastening base part connected to the lower part of the fastening head part. The nozzle base part may be characterized by having a fastening protrusion formed therein that is inserted into a fastening groove formed in the fastening head part, and by rotating the nozzle part in one direction by a predetermined angle while the fastening protrusion is inserted into the fastening groove to fasten the nozzle part and the fastening part.

Description

Technology Field

[0001] The present invention relates to a container washer, and more specifically, to an eco-friendly multi-container washer capable of efficiently washing containers of various sizes and shapes using only water pressure without using electricity. In particular, the invention relates to a container washer capable of simultaneously achieving convenience in nozzle replacement and stable washing performance through a nozzle section equipped with a magnetic fastening structure and leak prevention technology. Background Technology

[0002] In general, washing cups or containers used in homes, cafes, restaurants, and offices requires a significant amount of time and labor. In particular, efficiently washing containers of various shapes and sizes is an even more challenging task.

[0003] Conventional container cleaning devices primarily feature fixed nozzle structures, making them optimized only for containers of specific sizes or shapes. Due to this fixed cleaning structure, it was difficult to thoroughly clean containers of various sizes and shapes, and the inefficiency of nozzle angles resulted in inefficiencies in cleaning time and water consumption.

[0004] In addition, existing cup washers adopted a screw-on type, which had the disadvantage of being difficult to detach easily. As a result, many parts with various nozzle shapes could not be developed, and users had to experience inconvenience due to limited washing options.

[0005] Furthermore, existing products frequently experienced leakage problems at the joint between the nozzle and the main body, which led to performance degradation and safety issues during long-term use.

[0006] Meanwhile, with the recent rise in interest in environmental protection, there is a growing social demand to reduce the use of single-use items and increase the use of reusable containers. In line with the government's carbon neutrality policy, there is a need at the private level to improve energy efficiency and reduce the use of single-use items through the development of eco-friendly technologies.

[0007] In this regard, Korean Registered Patent No. 10-2431481 is an invention relating to a "tumbler washer," characterized by an impeller moving up and down below a tumbler loading plate loaded with tumblers, and spraying cleaning water through a plurality of nozzles to clean the inside of the tumblers. However, the conventional invention has the problem that it is difficult to perform customized cleaning for various types of containers because the nozzles cannot be replaced, and reliability decreases during long-term use because there is no special structure to prevent leakage at the joint between the nozzle and the main body.

[0008] Against this backdrop, there has been a need for an eco-friendly cleaning device capable of efficiently cleaning containers of various shapes and sizes, while also featuring easy nozzle replacement and leak prevention capabilities. The problem to be solved

[0009] The present invention, devised in response to the aforementioned background technology, aims to provide a container washer that prevents leakage and allows for easy replacement of the nozzle.

[0010] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0011] According to an embodiment of the present invention for solving the problem described above, a container washing machine is disclosed. The container washing machine comprises a nozzle part including a nozzle head part having a nozzle hole formed for spraying washing water and a nozzle base part connected to the lower part of the nozzle head part, and a fastening part including a fastening head part detachably connected to the nozzle base part and a fastening base part connected to the lower part of the fastening head part. The nozzle base part may have a fastening protrusion formed therein that is inserted into a fastening groove formed in the fastening head part, and the nozzle part and the fastening part may be fastened by rotating the nozzle part in one direction by a predetermined angle while the fastening protrusion is inserted into the fastening groove.

[0012] In various embodiments, the nozzle base portion includes a first nozzle base portion connected to the lower part of the nozzle head portion and a second nozzle base portion connected to the lower part of the first nozzle base portion, formed to be smaller in diameter than the first nozzle base portion to form a step with the first nozzle base portion, and the fastening protrusion may be formed on the outer surface of the second nozzle base portion.

[0013] In various embodiments, the first nozzle base portion may have a first sealing receiving space formed by being recessed upward, and the second nozzle base portion may have a fastening receiving space formed by being recessed upward inside, a second sealing receiving space formed annularly along the circumference of the fastening receiving space at a position spaced a predetermined distance from the fastening receiving space and recessed upward, and a first magnet receiving space formed by being further recessed upward from the second sealing receiving space.

[0014] In various embodiments, the fastening head portion may include a fastening shaft forming a hollow cylindrical structure, a fastening side wall formed annularly at a predetermined distance from the fastening shaft, and a fastening groove portion formed in the fastening side wall.

[0015] In various embodiments, the fastening head portion may have a nozzle portion receiving space formed between the fastening side wall and the fastening shaft, a third sealing receiving space formed by being recessed downward from the nozzle portion receiving space, and a second magnet receiving space formed by being recessed downward from the third sealing receiving space.

[0016] In various embodiments, the fastening groove may include an opening section in which the fastening protrusion is inserted and withdrawn in a vertical direction, a guide section inclined downward at a predetermined angle from the opening section, and a stopper section formed extending a predetermined length in a circumferential direction at the end of the guide section.

[0017] In various embodiments, a magnetic part disposed on at least one of the nozzle base part or the fastening head part may be further included, and the magnetic part may guide the fastening protrusion to be inserted into the fastening groove part by adsorbing the nozzle part and the fastening part.

[0018] In various embodiments, the magnet part includes a first magnet part disposed at the nozzle base part and a second magnet part disposed at the fastening head part, wherein the first magnet part has at least one pair of S poles and N poles disposed by dividing a predetermined area, and the second magnet part may have an N pole disposed at a position corresponding to the S pole of the first magnet part and an S pole disposed at a position corresponding to the N pole of the first magnet part so that when the fastening protrusion and the opening section are disposed to correspond to a vertical line, an attractive force is generated between the second magnet part and the first magnet part.

[0019] In various embodiments, the nozzle base portion and the fastening head portion further include a sealing portion for sealing the portion where they come into contact with each other, and the sealing portion may include a first sealing portion disposed in a first sealing receiving space of the first nozzle base portion, a second sealing portion disposed in a second sealing receiving space of the second nozzle base portion, and a third sealing portion disposed in a third sealing receiving space of the fastening head portion.

[0020] In various embodiments, the nozzle part may further include a nozzle flow path part that forms a flow path for washing water inside.

[0021] In various embodiments, the nozzle passage may include a cylindrical inlet passage into which cleaning water flows from the connecting portion, a first pull cone in the shape of a double cone connected to the inlet passage and having a diameter that increases toward the center, a cylindrical first spray pipe connected to the side of the first pull cone, a first spiral connecting pipe connected in a spiral shape to the upper part of the first pull cone, and a second pull cone in the shape of a cone connected to the first spiral connecting pipe and having a diameter that decreases toward the top.

[0022] In various embodiments, the nozzle passage may include a cylindrical inlet passage into which cleaning water flows from the connecting portion, a first pull cone in the shape of a double cone connected to the inlet passage and having a diameter that increases toward the center, a first spiral connecting pipe connected in a spiral shape to the upper part of the first pull cone, a second pull cone in the shape of a cone connected to the first spiral connecting pipe and having a diameter that decreases toward the top, a second spiral connecting pipe connected in a spiral shape to the side of the inlet passage, and a third pull cone in the shape of a cone connected to the second spiral connecting pipe and having a diameter that decreases toward the outer part.

[0023] In various embodiments, it may further include wing portions arranged radially around the fastening portion and a drainage tray arranged below the wing portions.

[0024] In various embodiments, a water supply housing disposed below the drain tray and a drying plate disposed above the drain tray may be further included.

[0025] Other specific details of the present invention are included in the detailed description and drawings. Effects of the invention

[0026] A container washer is provided according to various embodiments of the present invention. First, through a magnetic coupling method and a rotary fastening structure, the user can easily and accurately replace the nozzle with simple operation, thereby significantly improving the cleaning efficiency for containers of various shapes and sizes.

[0027] In addition, the washing machine of the present invention employs a double sealing system to provide stable performance without leakage even under high pressure conditions, and maintains consistent sealing quality even during repeated long-term use, thereby improving durability.

[0028] Furthermore, by implementing a complex spray pattern through a special internal flow path design, the present invention enables simultaneous upward and lateral spraying and ensures uniform cleaning across the entire area of ​​the container, thereby improving cleaning quality.

[0029] Furthermore, the washing machine of the present invention has the effect of saving energy consumption and reducing operating costs through an eco-friendly structure that operates solely on water pressure without using electricity. In addition, it contributes to environmental protection by inducing a reduction in the use of disposable items through efficient washing.

[0030] Furthermore, the present invention significantly enhances user convenience and provides ease of maintenance through an automatic magnet alignment function and an intuitive fastening structure. In particular, it enables customized cleaning for various types of containers, thereby simultaneously achieving reduced cleaning time and increased cleaning efficiency.

[0031] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art from the description below. Brief explanation of the drawing

[0032] Various aspects are now described with reference to the drawings, wherein similar reference numbers are used to collectively refer to similar components. In the following embodiments, for illustrative purposes, a number of specific details are presented to provide a comprehensive understanding of one or more aspects. However, it will be apparent that such aspect(s) may be practiced without these specific details. FIG. 1 is a perspective view schematically illustrating the overall configuration of a container washer related to one embodiment of the present invention. FIG. 2 is a perspective view illustrating the overall configuration of a container washer related to another embodiment of the present invention. FIG. 3 is a perspective view for explaining the configuration of a nozzle part related to one embodiment of the present invention. FIG. 4 is a cross-sectional view for explaining the cross-sectional structure of a nozzle base portion related to one embodiment of the present invention. FIG. 5 is a perspective view illustrating the configuration of a nozzle base portion related to another embodiment of the present invention. FIG. 6 is a perspective view for explaining the internal structure of a nozzle passage related to one embodiment of the present invention. FIG. 7 is a cross-sectional view illustrating the cross-sectional structure of a nozzle flow path related to one embodiment of the present invention. FIG. 8 is a perspective view illustrating the internal structure of a nozzle passage related to another embodiment of the present invention. FIG. 9 is a cross-sectional view illustrating the cross-sectional structure of a nozzle flow path related to another embodiment of the present invention. FIG. 10 is a perspective view illustrating the configuration of a nozzle part related to another embodiment of the present invention. FIG. 11 is a perspective view for explaining the configuration of a fastening part related to one embodiment of the present invention. FIG. 12 is a cross-sectional view for explaining the cross-sectional structure of a fastening part related to one embodiment of the present invention. FIG. 13 is an enlarged side view for explaining the fastening groove portion of a fastening part related to one embodiment of the present invention. FIG. 14 is an exploded cross-sectional perspective view illustrating the arrangement of the magnetic part and the sealing part of a container washer related to one embodiment of the present invention. FIG. 15 is a perspective view illustrating the polarity arrangement of a magnetic part related to one embodiment of the present invention. FIG. 16 is a drawing for explaining the process of combining a nozzle part and a fastening part related to an embodiment of the present invention. Specific details for implementing the invention

[0033] Various embodiments and / or aspects are now disclosed with reference to the drawings. For illustrative purposes, numerous specific details are disclosed in the following description to aid in a general understanding of one or more aspects. However, it will be apparent to those skilled in the art that these aspects may be practiced without such specific details. The following description and the accompanying drawings describe specific exemplary aspects of one or more aspects in detail. However, these aspects are exemplary, and some of the various methods in the principles of the various aspects may be used, and the descriptions are intended to include all such aspects and their equivalents. Specifically, terms such as “exemplary,” “example,” “aspect,” and “example” as used herein may not be interpreted as implying that any described aspect or design is superior or advantageous to other aspects or designs.

[0034] Hereinafter, identical or similar components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. Furthermore, in describing the embodiments disclosed in this specification, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the embodiments disclosed in this specification. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings.

[0035] Although terms such as "first," "second," etc., are used to describe various elements or components, it goes without saying that these elements or components are not limited by these terms. These terms are used merely to distinguish one element or component from another. Therefore, it goes without saying that the first element or component mentioned below may also be the second element or component within the technical scope of the present invention.

[0036] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0037] Furthermore, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related items.

[0038] Additionally, the terms “comprising” and / or “comprising” should be understood to mean that such features and / or components are present, but not to exclude the presence or addition of one or more other features, components, and / or groups thereof. Furthermore, unless otherwise specified or clearly evident from the context to indicate a singular form, the singular in this specification and claims should generally be interpreted to mean “one or more.”

[0039] When it is stated that one component is “connected” or “connected” to another component, it should be understood that it may be directly connected or connected to that other component, or that there may be other components in between. On the other hand, when it is stated that one component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

[0040] When elements or layers are referred to as being "on" or "on" another element or layer, it includes not only being directly on top of the other element or layer but also cases where another layer or element is interposed in between. On the other hand, when a component is referred to as being "directly on" or "immediately on," it indicates that no other element or layer is interposed in between.

[0041] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used to easily describe the relationship between one component or other components as illustrated in the drawings. Spatially relative terms should be understood as encompassing different orientations of the element during use or operation, in addition to the directions illustrated in the drawings.

[0042] The objectives and effects of the present invention, and the technical configurations for achieving them, will become clear by referring to the embodiments described in detail below in conjunction with the accompanying drawings. In describing the present invention, if it is determined that a detailed description of known functions or configurations may unnecessarily obscure the essence of the invention, such detailed description will be omitted. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator.

[0043] However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to make the present invention complete and to fully inform those skilled in the art of the scope of the disclosure, and the present invention is defined only by the scope of the claims. Therefore, such definition should be based on the content throughout this specification.

[0045] FIG. 1 is a perspective view schematically illustrating the overall configuration of a container washer related to one embodiment of the present invention.

[0046] Referring to FIG. 1, the container washer (10) for washing the target container of the present invention includes a nozzle part (100) and a fastening part (200), and may further include a wing part (300), a drain tray (400), a water supply housing (500), etc. as needed.

[0047] Here, the target container refers to a container of various shapes and sizes, including cups, bowls, PET bottles, span containers, tumblers, thermos bottles, mugs, etc. The container washing machine (10) of the present invention can perform washing of a target container mounted on the nozzle part (100) or wing part (300) in an inverted state using only the supply of water without a separate electric power means. This eco-friendly structure has the advantages of saving power consumption, reducing operating costs, and complying with the government's carbon neutrality policy.

[0048] In one embodiment, the nozzle part (100) is configured to spray cleaning water onto a target container and can be easily attached to and detached from the fastening part (200). It receives cleaning water from the fastening part (200) and sprays cleaning water onto the target container at a spray pressure, spray direction, and spray angle suitable for cleaning the target container. In particular, the nozzle part (100) can be easily and accurately replaced by the user with simple operation through a magnetic coupling method and a rotary fastening structure, thereby enabling customized cleaning for containers of various shapes and sizes. Depending on the type of container, the nozzle part (100) may be provided in categories such as for spans, PET bottles, bowls, general use, and tall cups, each providing an optimized spray pattern and cleaning efficiency.

[0049] In one embodiment, the connecting part (200) is configured to be connected to the nozzle part (100) to supply cleaning water, and its upper end may be coupled to the lower end of the nozzle part (100). At this time, the connecting part (200) may be configured to be easily detachable from the nozzle part (100) without leakage, and for this purpose, a double sealing system and a precise connecting structure are adopted. The connecting part (200) is connected to a water supply line to supply cleaning water to the nozzle part (100) at a constant water pressure, and a path for the cleaning water is formed inside.

[0050] In one embodiment, the wing portion (300) may be arranged radially around the fastening portion (200) as a means for stably mounting the target container. For example, the wing portion (300) may be arranged in 3, 4, 6, or 8 equal angles around the fastening portion (200) with a predetermined width and various shapes, and at this time, a non-slip protrusion (not shown) may be formed on the upper surface of the wing portion (300) to prevent the mounted target container from sliding. Additionally, the wing portion (300) may be formed as an integral part with the fastening portion (200) by extending from the circumference of the fastening portion (200), or it may be formed as a separate module. For example, if the wing portion (300) is formed as a separate module, the wing portion (300) can be attached or detached by a coupling means (e.g., screw thread, clip coupling structure) formed around the fastening portion (200), and as a result, the configuration of the wing portion (300) may be omitted depending on the usage environment.

[0051] In one embodiment, the drain tray (400) is configured to drain the overflowed washing water sprayed from the nozzle part (100) to a preset position. A partition wall (not shown) is formed at a position spaced apart from the nozzle part (100), and an opening (not shown) for draining the washing water to a preset position may be formed on one side of the partition wall. Additionally, the drain tray (400) may fix the fastening part (200). To this end, a through hole (not shown) may be formed in the lower surface so that the fastening part (200) can be fixed in position in the hole. The upper surface of the drain tray (400) may be formed at an angle so that the washing water naturally flows toward the drain, and it may be designed as a detachable structure for ease of cleaning. In various embodiments, the opening (not shown) formed in the drain tray (400) may not be formed on one side of the partition wall, but may be formed on the lower surface of the drain tray (400), that is, on the bottom surface. At this time, a separate drain pipe may be connected to the opening to be directly connected to the sewage system.

[0052] In one embodiment, the water supply housing (500) is configured to limit the exposure of various pipes, including a water supply pipe connected to the bottom of the connecting part (200), and may be positioned and connected to the bottom of the drain tray (400). A water supply valve, a pressure regulator, a filter, etc., may be installed inside the water supply housing (500), and it serves to protect internal components while providing a neat design for the exterior. Additionally, the water supply housing (500) may be equipped with an access door for maintenance or a removable cover, so that regular inspection and replacement of parts can be facilitated.

[0053] However, this is not limited to this, and various modifications are possible at a level obvious to a person skilled in the art. Below, with reference to FIG. 2, other types of container washers will be described.

[0055] FIG. 2 is a perspective view illustrating the overall configuration of a container washer related to another embodiment of the present invention.

[0056] Referring to FIG. 2, the container washer (10) for washing the target container of the present invention may further include a drying plate (800) placed on top of a drain tray (400).

[0057] Here, the drain tray (400) of the container washer (10) may not have an opening for water drainage formed on one side of the partition wall of the drain tray (400) as shown in FIG. 2, but may have an opening (not shown) located on the bottom surface of the drain tray (400), and the bottom surface may be formed in a slanted shape toward the opening to induce drainage into the opening. This structure allows the washing water to be naturally guided to the drain by gravity, enabling more efficient drainage and preventing water from accumulating inside the tray.

[0058] In various embodiments, the drying plate (800) is configured to support a target container that has been washed or a target container to be washed, and may be formed in a shape corresponding to the shape of the drain tray (400). The drying plate (800) is generally made of stainless steel, plastic, or other water-resistant material, and may have a texture or pattern formed on its surface for anti-slip purposes.

[0059] In various embodiments, a predetermined hole may be formed in the drying plate (800), and a first hole (not shown) for discharging liquid contained in a mounted target container to a drain tray (400) and a second hole (not shown) for exposing the nozzle part (100) may be formed. The first hole may be composed of multiple holes and distributed evenly over the entire drying plate (800), and the diameter of each hole is designed to be an appropriate size so that water droplets flowing out from the target container can pass through smoothly. At this time, if the container washer (10) includes a wing part (300), the second hole may be expanded to correspond to it for exposing the wing part (300).

[0060] In various embodiments, the drying plate (800) may be designed with a detachable structure to facilitate cleaning and maintenance. For example, the drying plate (800) may be inserted in a sliding manner into a guide rail (not shown) formed on the edge of the drain tray (400), or secured by a clip or latch. This structure allows the user to easily detach and clean the drying plate (800), enabling hygienic maintenance.

[0061] In various embodiments, ribs or channels for controlling the flow of water may be formed at the edges of the drying plate (800), thereby allowing water droplets falling from the container to be efficiently guided to the drainage tray (400).

[0062] However, this is not limited to this, and various modifications are possible to the extent obvious to a person skilled in the art. Below, with reference to FIGS. 3 to 16, detailed configurations for easy attachment and detachment of the container washer and prevention of leakage will be described.

[0064] FIG. 3 is a perspective view for explaining the configuration of a nozzle part related to one embodiment of the present invention.

[0065] Referring to FIG. 3, the nozzle part (100) of the present invention may include a nozzle head part (110) and a nozzle base part (120).

[0066] The nozzle part (100) is configured to efficiently spray cleaning water onto a target container and may be composed of a nozzle head part (110) having a nozzle hole (111) formed therein for spraying cleaning water and a nozzle base part (120) connected to the lower part of the nozzle head part (110). The nozzle part (100) is designed to provide optimized cleaning performance for various container shapes and can be easily attached to and detached from the fastening part (200) through a magnetic bonding method.

[0067] In one embodiment, the nozzle head portion (110) and the nozzle base portion (120) may be in an integrated form, with the nozzle base portion (120) extending from the nozzle head portion (110); however, this is not limited thereto, and in various embodiments, the nozzle head portion (110) and the nozzle base portion (120) may be detachably attached to each other. When formed as an integrated form, structural stability and sealing performance are improved, and when formed as a separate form, there is an advantage that individual replacement and maintenance of each part are easy.

[0068] In one embodiment, the nozzle head portion (110) may have a penetrating nozzle hole (111) formed therein. For example, the nozzle hole (111) may be formed as an upper nozzle hole (111a) formed on the upper surface of the nozzle head portion (110) and a side nozzle hole (111b) formed on the side of the nozzle head portion (110). The upper nozzle hole (111a) is primarily responsible for upward spraying to clean the upper inner surface of the container, and the side nozzle hole (111b) is responsible for lateral spraying to clean the side inner wall and bottom portion of the container.

[0069] At this time, only an upper nozzle hole (111a) may be formed in the nozzle head portion (110), only a side nozzle hole (111b) may be formed, or both an upper nozzle hole (111a) and a side nozzle hole (111b) may be formed. These various combinations may be intended to provide an optimized cleaning pattern according to the shape and size of the container to be cleaned.

[0070] In the present invention, the number, shape, position, size, etc. of the nozzle holes (111) can be varied depending on the target container. For example, in the case of a general-purpose type nozzle, the nozzle holes (111) of the nozzle head part (110) may have upper nozzle holes (111a) and side nozzle holes (111b) formed therein. The side nozzle holes (111b) may be formed at predetermined equal intervals, from 3 to 6, around the middle side of the nozzle head part (110). The diameter and angle of each nozzle hole are optimized through hydrodynamic calculations to ensure appropriate injection pressure and range.

[0071] Additionally, a grip pattern (112) may be formed on the outer surface of the nozzle head portion (110) to prevent slipping and provide a secure grip when the user holds and rotates the nozzle portion (100). In one embodiment, the grip pattern (112) may be formed by protrusions of a predetermined pattern (e.g., diamond shape) along the outer surface of the lower circumference of the nozzle head portion (110). At this time, the grip pattern (112) may be implemented in various shapes, such as a cross shape, a diamond shape, or a straight line shape.

[0072] In one embodiment, the nozzle base portion (120) is configured to be detachably connected to the fastening portion (200), and may have a fastening protrusion (P100) formed therein that is inserted into a fastening groove formed in the fastening head portion to be described later. At this time, the nozzle base portion (120) is composed of a first nozzle base portion (121) and a second nozzle base portion (122), and each may have a different diameter to form a stepped structure.

[0073] Here, the fastening protrusions (P100) may be formed with a position, size, and shape corresponding to the fastening groove, for example, the fastening protrusions (P100) may be formed at predetermined equal intervals (e.g., three at 120-degree intervals) at the bottom of the circumference of the nozzle base portion (120). The fastening protrusions (P100) may be formed in a rectangular shape, a cylindrical shape, or a tapered shape, and may be designed to provide a secure fixing force when fastened, while being released with an appropriate separation force when separated.

[0074] However, this is not limited to this, and various modifications are possible at a level obvious to a person skilled in the art. Below, with reference to FIG. 4, the nozzle base portion (120) will be described in more detail.

[0076] FIG. 4 is a cross-sectional view for explaining the cross-sectional structure of a nozzle base portion related to one embodiment of the present invention.

[0077] Referring to FIG. 4, the nozzle base portion (120) may include a first nozzle base portion (121) and a second nozzle base portion (122).

[0078] In one embodiment, the first nozzle base portion (121) is configured to be connected to the lower part of the nozzle head portion (110) and may be formed with a different diameter from the second nozzle base portion (122) to form a step. Specifically, the first nozzle base portion (121) has a larger diameter than the second nozzle base portion (122), and this step structure can provide accurate positional alignment and stable support when coupled with the fastening portion (200).

[0079] For example, the outer lower surface of the first nozzle base (121) may be seated in contact with the upper surface of the fastening part (200), thereby forming a primary contact surface between the nozzle part (100) and the fastening part (200). At this time, a hollow flow path (131) may be formed inside the first nozzle base (121), and cleaning water supplied from the fastening part (200) may be delivered to the nozzle head part (110) through this flow path (131).

[0080] In particular, the first nozzle base portion (121) is formed to be larger than the diameter of the flow path (131), and a first sealing receiving space (121a) that is recessed upward can be formed. The first sealing receiving space (121a) is configured in the shape of an annular groove, and its depth and width can be designed to match the specifications of the sealing part to be inserted. Here, the first sealing receiving space (121a) is configured to implement a double sealing structure of the nozzle portion (100), and a sealing part that completely seals the space between the nozzle portion (100) and the fastening portion (200) when they are combined can be positioned therein to prevent leakage.

[0081] In one embodiment, the second nozzle base portion (122) is connected to the lower part of the first nozzle base portion (121), but is formed to be smaller in diameter than the first nozzle base portion (121) to form a step with the first nozzle base portion (121). That is, it is designed to be inserted into the internal space of the fastening portion (200), and a fastening protrusion (P100) may be formed protrudingly on the outer surface of the second nozzle base portion (122).

[0082] Specifically, a fastening part receiving space (122a) may be formed by being recessed upward with a predetermined diameter inside the second nozzle base part (122). Here, the predetermined diameter is designed to be a size that precisely corresponds to the outer diameter of the fastening shaft of the fastening part (200) to be described later, so that the fastening shaft of the fastening part (200) can be inserted into the fastening part receiving space (122a) in a fitting manner, thereby ensuring accurate center axis alignment between the nozzle part (100) and the fastening part (200).

[0083] Additionally, the second nozzle base portion (122) is formed in an annular shape along the circumference of the fastening portion receiving space (122a) at a position spaced outwardly by a predetermined distance from the fastening portion receiving space (122a), and a second sealing receiving space (122b) that is recessed upwardly may be formed. The second sealing receiving space (122b) is configured to implement a double sealing structure of the nozzle portion (100) together with the first sealing receiving space (121a), and through double sealing, complete leakage prevention is possible even under high pressure conditions.

[0084] Additionally, the second nozzle base portion (122) may form a first magnet receiving space (122c) that is further recessed upward from the second sealing receiving space (122b). The first magnet receiving space (122c) may be an annular structure formed with a width smaller than that of the second sealing receiving space (122b), and this may be a space for the magnet part to be stably inserted, which will be described later. The magnet part is embedded in the first magnet receiving space (122c) to form a magnetic coupling with the fastening part (200), thereby allowing the nozzle portion (100) and the fastening part (200) to be automatically aligned and initial contact to be made.

[0085] However, this is not limited to this, and various modifications are possible to a level obvious to a person skilled in the art. Below, with reference to FIG. 5, other embodiments of the nozzle base portion (120) will be described.

[0087] FIG. 5 is a perspective view illustrating the configuration of a nozzle base portion related to another embodiment of the present invention.

[0088] Referring to FIG. 5, the nozzle base portion (120) may further include a third nozzle base portion (123) in addition to the first nozzle base portion (121) and the second nozzle base portion (122).

[0089] In various embodiments, the nozzle base portion (120) may be designed to be detachable from the nozzle head portion (110), and may further include a third nozzle base portion (123) for this purpose. This detachable structure can enable individual replacement or precise cleaning of the nozzle head portion (110), thereby greatly improving the convenience of maintenance.

[0090] Specifically, the third nozzle base (123) is a cylindrical connecting part formed by protruding upward from the first nozzle base (121) and can be responsible for mechanical connection with the nozzle head part (110). For example, the third nozzle base (123) has a hollow structure, and the flow path (131) of the first nozzle base (121) extends into it so that cleaning water can be smoothly supplied to the nozzle head part (110).

[0091] Additionally, a screw thread (123a) may be formed on the inner surface of the third nozzle base portion (123) as a coupling means for connecting to the nozzle head portion (110). The screw thread (123a) is a precisely machined spiral groove and is manufactured according to standard screw specifications (e.g., M20×1.5, M24×2.0, etc.) to ensure a secure coupling force and durability against repeated attachment and detachment.

[0092] At this time, a screw thread (not shown) corresponding to the screw thread (123a) of the third nozzle base part (123) may be formed on the lower inner surface of the nozzle head part (110) so that mutual screw coupling is possible. Additionally, a sealing ring or Teflon tape may be applied to the joint portion between the third nozzle base part (123) and the nozzle head part (110) to prevent even minute leakage at the joint portion.

[0093] In one embodiment, the third nozzle base (123) is formed with a diameter smaller than that of the first nozzle base (121) to form a step with the first nozzle base (121). This step structure can serve as a guide to help determine the correct position when the nozzle head (110) is seated on the upper surface of the first nozzle base (121). At this time, an internal receiving space is formed at the bottom of the nozzle head (110) that is precisely matched to the outer diameter of the third nozzle base (123), so that the third nozzle base (123) can be inserted into and wrapped around the nozzle head (110).

[0094] However, this is not limited to this, and various modifications are possible at a level obvious to a person skilled in the art. Below, with reference to FIGS. 6 and FIGS. 7, the nozzle flow path formed inside the nozzle part will be described in more detail.

[0096] FIG. 6 is a perspective view for explaining the internal structure of a nozzle flow path related to one embodiment of the present invention, and FIG. 7 is a cross-sectional view for explaining the cross-sectional structure of a nozzle flow path related to one embodiment of the present invention.

[0097] Referring to FIGS. 6 and FIGS. 7, the nozzle part (100) may further include a nozzle flow path part (130) that forms a flow path for washing water inside.

[0098] The nozzle flow path (130) is configured to optimize the pressure, flow rate, and spray pattern of the washing water to provide efficient washing performance to the target container, and may have a cylindrical inlet flow path (131) formed through which washing water flows in from the connecting part (200). At this time, the nozzle flow path (130) may be directly connected to the inlet flow path (131) and the nozzle hole (111), or connected to the nozzle hole (111) through the configuration of a spray pipe connecting the inlet flow path (131) and the nozzle hole (111) to perform precise spraying into the target container.

[0099] Specifically, the nozzle passage section (130) may include a cylindrical inlet passage (131) into which cleaning water flows from the connecting section (200), a first pull cone (132) in the shape of a double cone connected to the inlet passage (131) and having a diameter that increases toward the center, a cylindrical first spray pipe (133) connected to the side of the first pull cone (132), a first spiral connecting pipe (134) connected in a spiral shape to the upper part of the first pull cone (132), and a second pull cone (135) in the shape of a cone that has a diameter that decreases toward the top and is connected to the first spiral connecting pipe (134).

[0100] Here, the first full cone (132) is configured to control the flow characteristics of the washing water and may have a bicone shape. That is, since the first full cone (132) has a shape in which the diameter increases toward the center, it may be a structure utilizing the Bernoulli effect, which becomes larger than the diameter of the cylindrical inlet channel (131) and then becomes smaller again. Due to this shape, when the washing water passes through the expanded portion of the first full cone (132), the flow velocity decreases and the pressure increases, and when it passes through the contracted portion, the flow velocity increases and the pressure decreases. This can form turbulence in the washing water and serve to accumulate energy for generating rotational force in the subsequent spiral channel.

[0101] Next, a first spray pipe (133) is connected to the side of the central part of the first full cone (132), so that the nozzle part (100) can move the cleaning water to the side nozzle hole (111b) through the first spray pipe (133) and spray the cleaning water onto the target container. Here, as shown in FIG. 6, the first spray pipe (133) can be formed in an L-shape bent at a predetermined angle and connected to the side nozzle hole (111b). Due to this L-shaped structure, the cleaning water receives centrifugal force during the direction change process, which imparts a rotational component to the sprayed cleaning water, thereby forming a spiral cleaning pattern on the inner wall of the container. In addition, the L-shaped bending structure allows the spray angle of the cleaning water to be adjusted in multiple directions, enabling it to effectively reach the side and bottom parts of the container. However, it is not limited to this, and the first spray pipe (133) may be in a straight shape and connected directly to the side nozzle hole (111b).

[0102] Next, a spiral-shaped first spiral connecting pipe (134) may be connected to the upper part of the first ful cone (132), and at least two first spiral connecting pipes (134) may be formed. Specifically, the first spiral connecting pipe (134) is configured to create a vortex in the incoming washing water, and due to a structure in which a spiral channel is formed in a twisted shape in the axial direction, the washing water undergoes forced rotational motion as it passes through. This spiral structure imparts a tangential velocity component to the washing water to generate centrifugal force, and consequently causes a strong vortex to form in the second ful cone (135). At this time, the pitch and twist angle of the first spiral connecting pipe (134) can be designed to vary depending on the flow rate and pressure of the washing water.

[0103] Next, the second full cone (135) can be connected to the upper part of the first spiral connecting tube (134). At this time, the second full cone (135) is formed in a cone shape with a diameter that decreases towards the top, thereby maintaining the rotation of the cleaning water discharged from the first spiral connecting tube (134) and generating a full cone spray. Here, a full cone spray refers to a spray pattern that spreads evenly in a cone shape with respect to a central axis. This can be formed by the rotating cleaning water radiating outwards by centrifugal force as it passes through the conical outlet. Such a full cone spray can uniformly cover the upper inner surface of the container, enabling effective cleaning.

[0104] The complex flow path design of the present invention as described above is a complex three-dimensional shape that is difficult to implement with conventional injection molding, and can be realized through integral molding using 3D printing technology. Through this, simultaneous upward and lateral spraying of cleaning water is possible, and a uniform cleaning water film can be formed over the entire area of ​​the container.

[0105] However, this is not limited to this, and various modifications are possible to the extent obvious to a person skilled in the art. Below, with reference to FIGS. 8 and 9, a nozzle flow path portion of another embodiment formed inside the nozzle portion will be described in more detail.

[0107] FIG. 8 is a perspective view for explaining the internal structure of a nozzle flow path related to another embodiment of the present invention, and FIG. 9 is a cross-sectional view for explaining the cross-sectional structure of a nozzle flow path related to another embodiment of the present invention.

[0108] Referring to FIGS. 8 and 9, in various embodiments, the nozzle passage (130) may not be structured to move cleaning water to the side nozzle hole (111b) by means of a first spray pipe (133) connected to the side of the central part of the first full cone (132) to spray cleaning water onto the target container, but may be structured such that a second spiral connecting pipe (136) connected in a spiral shape to the side of the inlet passage (131) and a third full cone (137) connected to the second spiral connecting pipe (136) and having a cone shape with a diameter that becomes smaller towards the outer part is connected to the side nozzle hole (111b). This structure is a design particularly optimized for cleaning containers with a wide bottom surface, such as a span nozzle, and can implement more powerful and wide side spraying.

[0109] Specifically, the nozzle passage section (130) may have a third fulcrum (137) and a second spiral connecting pipe (136) arranged in pairs on the side of the inflow passage (131) located at the bottom of the first fulcrum (132) to correspond to the number of side nozzle holes (111b). For example, if the side nozzle holes (111b) are composed of 4 or 6, the combination of the third fulcrum (137) and the second spiral connecting pipe (136) corresponding to each may be arranged radially and evenly.

[0110] At this time, the second spiral connecting tube (136) may be configured such that at least two second spiral connecting tubes (136) are arranged tangentially on one third pulcon (137), and each second spiral connecting tube (136) may be symmetrically arranged at intervals of 120 degrees or 180 degrees to ensure even distribution of the washing water. Here, the operating principle of the second spiral connecting tube (136) and the third pulcon (137) may be similar to that of the first pulcon (132) and the first spiral connecting tube (134), and the second spiral connecting tube (136) may branch tangentially from the side of the inflow channel (131) to form a spiral path. At this time, the spiral path is designed to have a larger radius of curvature and a longer spiral length compared to the first spiral connecting tube (134), so that stronger angular momentum can be acquired as the washing water passes through. In particular, in the case of a nozzle for span, the pitch angle (the angle at which the spiral is tilted in the axial direction in a spiral structure) of the second spiral connecting tube (136) is set more steeply so that a high rotational speed can be imparted to the washing water. Within the spiral passage, the washing water forms a complex three-dimensional flow under the influence of centrifugal force and the Coriolis effect, which can greatly improve the spraying performance in the subsequent third full cone (137).

[0111] The third full cone (137) is shaped like a cone with a diameter that decreases toward the outer edge, and can radially spray high-rotation cleaning water supplied from the second spiral connecting pipe (136). For example, the geometric characteristics of the third full cone (137) can be differentiated according to the application, and for span applications, it is designed to have a wider spray angle (e.g., about 45 to 60 degrees) to effectively cover a wide floor surface. At this time, a boundary layer is formed due to friction with the wall surface of the cleaning water rotating inside the cone, and as a result, a strong tangential velocity component can be maintained in the sprayed cleaning water. Consequently, the cleaning water sprayed through the side nozzle hole (111b) can reach the inner wall of the container by following a spiral trajectory. In particular, the high-speed rotational flow generated in the third full cone (137) generates high shear stress on the inner wall of the container, which can effectively remove attached contaminants. In addition, multiple third full cones (137) can operate simultaneously to form an overlapping cleaning area across the entire side and bottom of the container, thereby enabling complete cleaning without blind spots.

[0112] At this time, the nozzle part can be manufactured through 3D printing, which enables simultaneous upward and lateral spraying of washing water and forms a uniform washing water film over the entire area of ​​the container.

[0113] However, this is not limited to this, and various modifications are possible to the extent obvious to a person skilled in the art. Below, with reference to FIG. 10, a nozzle part of another embodiment will be described.

[0115] FIG. 10 is a perspective view illustrating the configuration of a nozzle part related to another embodiment of the present invention.

[0116] Referring to FIG. 10, the nozzle part (100) of the present invention can be manufactured in a form optimized for various container types depending on the length of the nozzle head part (110), the configuration of the nozzle hole (111), and the internal flow path structure.

[0117] In various embodiments, the nozzle part of the span type is optimized for wide and shallow containers such as frying pans, and the body of the nozzle head part (110) can be designed to be long. At this time, the internal flow path is configured in a full cone shape on the side (see FIG. 8 and 9) so that a wide bottom surface can be effectively cleaned through powerful side spraying, and a high-pressure rotating flow generated through the combination of the second spiral connecting pipe (136) and the third full cone (137) is sprayed evenly over a wide area of ​​the span so that grease or food residue can be effectively removed.

[0118] In various embodiments, the nozzle part for PET bottles is specialized for cleaning PET bottles with a narrow and deep neck, and the body of the nozzle head part (110) can be designed to be long. At this time, the nozzle part for PET bottles may be composed only of upward spraying through the upper nozzle hole (111a) without side spraying, and considering the characteristics of PET bottles where side access is difficult due to neck constraints, it may be designed to clean the entire inner wall of the bottle through powerful upward full-cone spraying. The cleaning water sprayed from the upper nozzle hole (111a) can cover the entire surface as it flows down along the inner wall of the bottle.

[0119] In various embodiments, the nozzle part of the bowl type is suitable for deep, round containers such as bowls and cups, and the body of the nozzle head part (110) can be designed to be short. At this time, the internal flow path is configured in a full-cone shape on the side to provide a cleaning pattern optimized for the curved shape of the bowl. Due to the short body length, compact cleaning is possible in accordance with the depth of the bowl, and a spiral cleaning pattern can be formed along the curved surface of the bowl through side full-cone spraying.

[0120] In various embodiments, the nozzle part of the type for a long cup is designed for cleaning deep containers such as tumblers and thermos bottles, and the body of the nozzle head part (110) can be configured to be the shortest. The internal flow path is configured as a standard type on the side (see FIG. 6 and 7), and the first spray tube (133) can be positioned so as to face upward. This is a design for effectively cleaning the upper inner wall of a long cup, and the L-shaped first spray tube (133) is bent upward so that cleaning water can reach near the opening of the cup.

[0121] In various embodiments, the general-purpose type nozzle part is used for various containers such as general cups and mugs, and the body of the nozzle head part (110) may be designed to be longer than that for bowls and tall cups. At this time, the internal flow path is configured as a general type on the side to provide balanced cleaning performance. Both the upper nozzle hole (111a) and the side nozzle hole (111b) are provided to enable simultaneous upward and side spraying, and stable and efficient cleaning can be performed through the basic combination of the first full cone (132) and the first spiral connecting pipe (134).

[0122] In addition, the grip pattern (112) can also be implemented in various forms to improve the user's grip strength and convenience of rotational operation. For example, as shown in FIG. 3, diamond-shaped protrusions may be formed in a grid pattern along the outer surface of the lower circumference of the nozzle head part (110), or as shown in FIG. 10, straight protruding structures may be arranged at equal intervals in the circumferential direction. This grip pattern is designed to allow stable operation even with wet hands, which can greatly improve convenience when replacing the nozzle.

[0123] However, it is not limited to this, and various modifications are possible at a level obvious to a person skilled in the art.

[0124] These classifications of various nozzle types are derived by closely analyzing the morphological characteristics and cleaning requirements of each container, and can provide optimal cleaning performance depending on the container the user intends to clean. In particular, the present invention can significantly improve user accessibility through a simple attachment and detachment method of the connecting part and the nozzle part. Below, the connecting part will be described in more detail with reference to FIG. 11.

[0126] FIG. 11 is a perspective view for explaining the configuration of a fastening part related to one embodiment of the present invention.

[0127] Referring to FIG. 11, the fastening part (200) of the present invention may include a fastening head part (210), a fastening base part (220), and a fastening flow path part (230).

[0128] The connecting part (200) is configured to be connected to the nozzle part (100) to supply cleaning water to the nozzle part (100) and to provide a stable connection with the nozzle part (100), and may be composed of a connecting head part (210) that is detachably connected to the lower part of the nozzle base part (120), a connecting base part (220) that is connected to the lower part of the connecting head part (210), and a connecting flow path part (230) formed as a cylindrical hollow structure inside the connecting head part (210) and the connecting base part (220).

[0129] The fastening portion (200) is designed to be easily attached to and detached from the nozzle portion (100) formed to fit various container shapes, and for this purpose, a fastening groove portion (213) may be formed. In one embodiment, the fastening portion (200) can be fastened to the nozzle portion (100) by rotating the nozzle portion (100) in one direction (e.g., counterclockwise) by a predetermined angle (e.g., less than 90 degrees) while the fastening protrusion (P100) of the nozzle portion (100) is inserted into the fastening groove portion (213). Due to this quarter-turn fastening structure, the fastening portion (200) of the present invention can be designed to enable a user to fasten quickly and accurately with one hand.

[0130] In one embodiment, the fastening head portion (210) may include a fastening shaft (211) forming a hollow cylindrical structure, a fastening side wall (212) formed in an annular shape at a predetermined distance from the fastening shaft (211), and a fastening groove portion (213) formed in the fastening side wall (212).

[0131] Specifically, the connecting shaft (211) is configured to serve as a passage for washing water and simultaneously as a guide for precise coupling with the nozzle part (100), and has a flow path (230) formed inside. The connecting shaft (211) is inserted into the connecting part receiving space (122a) formed in the second nozzle base part (122) in a fitting manner, and performs the function of connecting the connecting flow path part (230) and the nozzle flow path part (130) to each other. As a result, accurate center axis alignment between the nozzle part (100) and the connecting part (200) is ensured, and washing water can be smoothly delivered to the nozzle part (100). The outer diameter of the connecting shaft (211) and the inner diameter of the connecting part receiving space (122a) are designed with precise tolerances so that a tight coupling without leakage can be achieved.

[0132] Additionally, the fastening head portion (210) may include a fastening side wall (212) formed in an annular shape at a predetermined distance from the fastening shaft (211). The inner surface of the fastening side wall (212) is positioned to precisely contact the outer surface of the second nozzle base portion (122) to form a secondary support surface between the nozzle portion (100) and the fastening portion (200). Here, the predetermined distance may be designed to correspond to the thickness from the inner surface of the second nozzle base portion (122) where the fastening portion receiving space (122a) is formed to the outer surface of the second nozzle base portion (122). This may be intended to provide a robust connection by having the fastening shaft (211) and the fastening side wall (212) simultaneously support the second nozzle base portion (122) from the inside and outside.

[0133] At this time, a fastening groove (213) is formed in the fastening side wall (212), and the fastening groove (213) is formed in the shape of a cam inclined at a predetermined angle downward, so that when the fastening protrusion (P100) is inserted into the fastening groove (213), it can perform the function of converting simple rotational motion into a spiral motion combined with vertical linear motion. For example, during the fastening process, the fastening protrusion (P100) is first inserted vertically into the opening section of the fastening groove (213), and then when the nozzle section (100) is rotated counterclockwise, the fastening protrusion (P100) moves along the inclined guide section of the fastening groove (213) and pulls the nozzle section (100) downward. In this process, magnetic force provides auxiliary attraction, thereby minimizing the user's operating force. Finally, when the fastening protrusion (P100) reaches the stopper section, further rotation is restricted, and at this time, the fastening part (200) and the nozzle part (100) can be completely coupled.

[0134] On the other hand, when unfastening, if the nozzle part (100) is rotated in the opposite direction to the rotation direction during fastening (e.g., clockwise), the fastening protrusion (P100) moves in the reverse direction along the guide of the fastening groove (213) and can push the nozzle part (100) upward. This cam mechanism allows the user to perform secure fastening and unfastening with minimal force, and in the fastened state, it can maintain a solid connection despite vibrations or water pressure generated during the cleaning process.

[0135] In one embodiment, the connecting base portion (220) is configured to serve as an intermediate medium connecting the connecting head portion (210) and the water supply system, and may be formed to protrude cylindrically from the lower part of the connecting head portion (210), and the connecting flow path portion (230) may be extended inside the connecting base portion (220) to form a continuous supply path for washing water.

[0136] Specifically, the lower end of the connecting portion (220) is directly connected to a water supply pipe (not shown), and various water supply control methods can be applied to this water supply pipe. For example, in a pressure-type water supply system utilizing a spring structure, when a user applies an external force by pressing the connecting portion (200) downward, the flow path that is normally blocked is opened by the spring structure inside the water supply pipe, and washing water is supplied to the connecting portion (200) in a push-to-wash method, the supply of washing water can be controlled through the user's intuitive operation, thereby improving convenience. In addition, in a mechanical water supply system using a valve structure, when a valve (not shown) installed in the water supply pipe is manually opened, the blocked flow path is opened and washing water is supplied to the connecting portion (200), and such valve control methods can be useful in commercial environments requiring continuous washing operations or quantitative water supply.

[0137] In various embodiments, a wing portion (300) may be detachably configured on the outer surface of the fastening portion (200). The wing portion (300) may be detachably attached to the outer surface of the fastening base portion (220) using a screw thread or clip method, or detachably attached to the outer surface of the fastening head portion (210) using a screw thread or clip method. This modular design allows the presence or absence of the wing portion (300) to be selected depending on the usage environment, so that in environments with space constraints, the wing portion (300) can be removed for compact use, or when large containers need to be cleaned, the wing portion (300) can be attached to enable stable container mounting. At this time, the detachable structure of the wing portion (300) is designed to be easily operated without tools, and provides a secure fixing force upon fastening, allowing it to remain stable even against vibrations or shocks during the cleaning process.

[0138] However, this is not limited to this, and various modifications are possible to the extent obvious to a person skilled in the art. Below, with reference to FIG. 12, the fastening head part will be described in more detail.

[0140] FIG. 12 is a cross-sectional view for explaining the cross-sectional structure of a fastening part related to one embodiment of the present invention.

[0141] Referring to FIG. 12, the fastening head portion (210) may have a nozzle portion receiving space (214) formed between the fastening side wall (212) and the fastening shaft (211), a third sealing receiving space (215) formed by being recessed downward from the nozzle portion receiving space (214), and a second magnet receiving space (216) formed by being recessed downward from the third sealing receiving space (215).

[0142] Specifically, the nozzle receiving space (214) is a primary receiving space formed in an annular shape on the upper part of the fastening head part (210), and may be a space into which the second nozzle base part (122) is inserted and seated. Here, the outer inner diameter of the nozzle receiving space (214) (the inner diameter of the fastening side wall (212)) is designed to precisely match the outer diameter of the second nozzle base part (122), thereby ensuring accurate center axis alignment between the nozzle part (100) and the fastening part (200). At this time, the depth of the nozzle receiving space (214) corresponds to the insertion depth of the second nozzle base part (122), and may be designed so that the lower surface of the first nozzle base part (121) can be completely in close contact with the upper surface of the fastening head part (210) when fastened. That is, the nozzle portion receiving space (214) acts as an external support surface surrounding the second nozzle base portion (122) during the fastening process, and can form a double support structure together with the fastening shaft (211).

[0143] Additionally, the third sealing receiving space (215) is an annular groove formed by being recessed deeper downward from the nozzle part receiving space (214), and may be a space where a sealing member on the fastening part (200) side is placed. The third sealing receiving space (215) corresponds to the second sealing receiving space (122b) formed in the second nozzle base part (122) and may serve as one axis of the double sealing structure. The width and depth of the third sealing receiving space (215) are precisely machined to match the specifications of the sealing part to be inserted, and may be designed so that the sealing member has an appropriate compression ratio. When fastening, the sealing members on both sides are simultaneously compressed as the second nozzle base part (122) is inserted to form a complete seal, and a first sealing receiving space (121a) is also formed at the position where the upper surface of the first nozzle base part (121) and the fastening axis (211) come into contact, thereby forming a double seal.

[0144] Additionally, the second magnet receiving space (216) is a space formed by being recessed further downward than the third sealing receiving space (215), and may be a space in which the magnet part on the fastening part (200) side is embedded. The second magnet receiving space (216) can form a magnetic coupling by precisely corresponding to the first magnet receiving space (122c) formed in the second nozzle base part (122).

[0145] That is, the configuration of the fastening head portion (210) of the present invention can be designed to be perfectly complementary to the structure of the nozzle base portion (120) described in FIG. 4. For example, the second sealing receiving space (122b) and the first magnet receiving space (122c) on the nozzle portion (100) side correspond to the third sealing receiving space (215) and the second magnet receiving space (216) on the fastening portion (200) side, and the first sealing receiving space (121a) on the nozzle portion (100) side and the upper surface of the fastening shaft (211) on the fastening portion (200) side correspond to each other, so that complete sealing and magnetic guidance can be achieved simultaneously when coupled.

[0146] In particular, in the case of the sealing structure, the sealing part disposed in the first sealing receiving space (121a) of the first nozzle base part (121), the second sealing receiving space (122b) of the second nozzle base part (122), and the sealing part disposed in the third sealing receiving space (215) of the fastening head part (210) can form a double sealing structure. This provides much higher leak prevention performance compared to a single seal and can ensure stable sealing even under high pressure conditions.

[0147] In the case of magnet placement, magnets of opposite polarity are placed in the first magnet receiving space (122c) and the second magnet receiving space (216), respectively, so that an attractive force can be generated when the fastening protrusion (P100) and the fastening groove (213) correspond to a vertical line. This magnetic guide can assist the user's operation and serve to automatically align the nozzle part (100) to an accurate coupling position.

[0148] However, this is not limited to this, and various modifications are possible to the extent that are obvious to a person skilled in the art. Below, with reference to FIG. 13, the fastening groove portion will be described in more detail.

[0150] FIG. 13 is an enlarged side view for explaining the fastening groove portion of a fastening part related to one embodiment of the present invention.

[0151] Referring to FIG. 13, the fastening groove (213) may include an opening section (213a) through which the fastening protrusion (P100) is inserted and withdrawn in a vertical direction, a guide section (213b) inclined downward at a predetermined angle from the opening section (213a), and a stopper section (213c) formed extending a predetermined length in a circumferential direction at the end of the guide section (213b).

[0152] Specifically, the opening section (213a) may be a straight slot that serves as the starting point of the fastening groove (213) and into which the fastening protrusion (P100) is initially inserted in a vertical direction. The width of the opening section (213a) may be designed to be slightly larger than the width of the fastening protrusion (P100) to allow for smooth insertion, while being machined with precise tolerances to prevent excessive play. For example, the depth of the opening section (213a) may be designed to be sufficiently long so that the fastening protrusion (P100) is fully inserted and moves smoothly to the subsequent guide section (213b). In the opening section (213a), the rotational movement of the fastening protrusion (P100) may be restricted, thereby guiding it to allow only accurate vertical insertion.

[0153] Additionally, the guide section (213b) is a key cam operating section of the fastening groove (213) and can be formed by being inclined downward at a predetermined angle from the opening section (213a). Here, the predetermined angle (angle of inclination) of the guide section (213b) is an angle that reflects the optimal balance point between fastening torque and leakage suppression performance. If the cam angle is too large, the torque increases excessively during fastening, placing a burden on the user, and if it is too small, a problem of leakage may occur because sufficient sealing pressure is not formed. For example, the predetermined angle of the guide section (213b) of the present invention may be an angle of inclination of 15 to 25 degrees. This angle range may be an angle that allows the fastening torque to remain at a level of 0.5 to 2.0 N·m while maintaining the leakage amount at 0.1 mL / min or less at a water pressure of 0.3 MPa or higher. At this time, the length of the guide section (213b) can be designed so that the fastening protrusion (P100) can pull the nozzle part (100) downward by an appropriate distance as it passes through this section to form a sealing pressure. In various embodiments, the inner surface of the guide section (213b) may be subjected to a special surface treatment to optimize the friction coefficient. If it is too rough, wear will be severe, and if it is too smooth, slippage may occur during fastening, so it can be machined to an appropriate surface roughness.

[0154] Additionally, the stopper section (213c) is a horizontal section formed by extending a predetermined length in the circumferential direction from the end of the guide section (213b), and can serve as a safety device to prevent excessive rotation. At this time, the stopper section (213c) is designed so that fastening is completed with only a quarter turn (less than 90 degrees) of rotation, thereby preventing the user from rotating excessively and damaging the part.

[0155] In various embodiments, an elastic deformation portion (not shown) for a break-away function may be designed at the end of the stopper section (213c). This is a safety function that is intentionally separated when an excessive external force is applied, which can prevent damage to the fastening structure and prevent over-fastening by the user, which is tightened more strongly than necessary.

[0156] For example, thanks to the structure of this fastening groove (213), the user can fasten and unfasten it with one hand within 1-2 seconds.

[0157] However, this is not limited to this, and various modifications are possible to the extent that are obvious to a person skilled in the art. Below, the magnetic part and the sealing part will be described with reference to FIGS. 14 and FIGS. 15.

[0159] FIG. 14 is an exploded cross-sectional perspective view illustrating the arrangement of the magnetic part and the sealing part of a container washer related to one embodiment of the present invention, and FIG. 15 is a perspective view illustrating the polarity arrangement of the magnetic part related to one embodiment of the present invention.

[0160] Referring to FIGS. 14 and 15, the container washer (10) of the present invention may further include a magnetic part (600) disposed on at least one of a nozzle base part (120) or a fastening head part (210), and a sealing part (700) that seals the area where the nozzle base part (120) and the fastening head part (210) come into contact with each other.

[0161] The magnetic part (600) is a core component for magnetically attracting the nozzle part (100) and the fastening part (200) to guide the fastening protrusion (P100) to be accurately inserted into the fastening groove (213). The magnetic part (600) may include a first magnetic part (610) disposed on the nozzle base part (120) and a second magnetic part (620) disposed on the fastening head part (210). At this time, the magnetic part (600) of the present invention is preferably composed of the first magnetic part (610) and the second magnetic part (620), and is preferably disposed on the nozzle base part (120) and the fastening head part (210), respectively, but is not limited thereto, and may be disposed only with the first magnetic part (610) or only with the second magnetic part (620).

[0162] In various embodiments, the magnet used in the magnet part (600) may be any one of a neodymium (NdFeB) magnet, a ferrite magnet, a samarium-cobalt (SmCo) magnet, or an Alnico (AlNiCo) magnet, or a combination thereof, but is not limited thereto. For example, a neodymium magnet may be used when strong magnetic force is required in the magnet part (600), and a samarium-cobalt magnet may be selected in environments where heat resistance and corrosion resistance are important, but is not limited thereto.

[0163] Additionally, in various embodiments, the magnetic part (600) may further include a magnetic flux induction part (e.g., a yoke). Here, the magnetic flux induction part refers to a component composed of a soft magnetic material for efficiently inducing and concentrating the magnetic flux generated from the magnet, and can perform the role of increasing the efficiency of the magnetic circuit and minimizing magnetic loss by inducing the magnetic field lines of the magnet in a desired direction. For example, the magnetic flux induction part may be formed of a high-permeability soft magnetic material such as pure iron, mild steel, or silicon steel plate, and may be placed on the back or side of the first magnetic part (610) and the second magnetic part (620) to concentrate the magnetic flux in the direction of the coupling surface between the nozzle part (100) and the fastening part (200). Through this, it is possible to achieve a stronger adsorption force compared to the same magnet size, or to obtain the effect of reducing the size of the magnet while maintaining the target adsorption force.

[0164] In one embodiment, the first magnet part (610) is embedded in the first magnet receiving space (122c), and at least one pair of S poles and N poles may be arranged by dividing a predetermined area. Specifically, the first magnet part (610) is arranged together with the second magnet part (620) in an asymmetric polarity arrangement such as NSNS, thereby preventing the nozzle part (100) and the fastening part (200) from being connected in the wrong direction. This asymmetric arrangement can serve as a safety device designed so that a strong attractive force acts only when the fastening protrusion (P100) and the opening section (213a) are accurately aligned.

[0165] Likewise, the second magnet part (620) can be positioned in the second magnet receiving space (216) such that when the fastening protrusion (P100) and the opening section (213a) are positioned to correspond to a vertical line, the polarity can be arranged so that an attractive force is generated between the first magnet part (610). That is, the N pole is positioned at a location corresponding to the S pole of the first magnet part (610), and the S pole is positioned at a location corresponding to the N pole of the first magnet part (610), thereby forming a complete magnetic dipole.

[0166] For example, this magnetic arrangement can provide a function that automatically aligns the nozzle part (100) by attracting it to the correct position even if there is a position / angle error of ±2mm or ±5 degrees, that is, by combining the magnetic force with the mechanical coupling of the fastening protrusion (P100) and the fastening groove part (213), the separation force can be maintained in the range of 20-60N, which is sufficient to withstand vibrations and water pressure generated during the cleaning process, and is an appropriate level that allows the user to separate it without difficulty.

[0167] In one embodiment, the sealing portion (700) is configured to completely prevent leakage between the nozzle base portion (120) and the fastening head portion (210), and can implement a double sealing structure in which a cylindrical metal sealing surface and a sealing member (e.g., an elastic O-ring) are combined instead of a single gasket.

[0168] Specifically, the first sealing portion (710) is a primary sealing element disposed in the first sealing receiving space (121a) of the first nozzle base portion (121), and can perform a sealing structure by combining with the metal sealing surface on the upper surface of the fastening shaft (211). For example, in the initial stage of fastening, the upper surface of the fastening shaft (211) first engages with the first sealing portion (710) to serve to precisely align the positions of the nozzle portion (100) and the fastening portion (200). This can perform a dual function of providing mechanical alignment and primary sealing simultaneously.

[0169] Next, the second sealing portion (720) is an elastic O-ring placed in the second sealing receiving space (122b) of the second nozzle base portion (122), and can form a secondary seal by being compressed during the rotational fastening process. At this time, for example, the second sealing portion (720) is made of a high-quality elastomer material with Shore A hardness of 40 to 60, and the compression ratio is designed to be in the range of 10 to 25% to provide optimal sealing performance and durability.

[0170] Likewise, the third sealing part (730) is an additional sealing element placed in the third sealing receiving space (215) of the fastening head part (210) and can provide secondary sealing together with the second sealing part (720). At this time, the second sealing part (720) and the third sealing part (730) are each placed in a double layer, so that they can serve as a final safety net that ensures complete prevention of leakage even under high pressure conditions.

[0171] The nozzle part (100) and the fastening part (200) of the present invention, which include such a multi-layer sealing structure, can achieve excellent durability in which the amount of leakage is maintained within 5% of the initial amount even after repeated fastening (e.g., 2,000 times). At this time, each sealing part operates at a different compression stage to achieve staged sealing, and can implement a multi-safety structure in which the remaining parts perform a backup role even if one seal is damaged.

[0172] However, this is not limited to this, and various modifications are possible at a level obvious to a person skilled in the art. Below, with reference to FIG. 16, the process of combining the nozzle part and the fastening part will be explained.

[0174] FIG. 16 is a drawing for explaining the process of combining a nozzle part and a fastening part related to an embodiment of the present invention.

[0175] Referring to FIG. 16, the process of combining and separating the nozzle part (100) and the fastening part (200) of the present invention is achieved through an intuitive yet precise mechanism.

[0176] The coupling of the nozzle part (100) and the coupling part (200) begins when the user brings the nozzle part (100) closer to the coupling part (200). At this time, the magnetic force between the first magnetic part (610) and the second magnetic part (620) acts immediately to automatically align the nozzle part (100) in the correct direction. Due to the NSNS asymmetric polarity arrangement, coupling in the wrong direction is fundamentally blocked, and a strong attractive force is generated only at the exact position intended by the user.

[0177] When alignment by magnetic force is complete, the user presses the nozzle part (100) vertically downward to insert the fastening protrusion (P100) into the opening section (213a) of the fastening groove part (213). During this process, the fastening shaft (211) is precisely fitted into the fastening part receiving space (122a), and the center axis between the nozzle part (100) and the fastening part (200) is perfectly aligned. At the same time, the conical metal sealing surface of the first sealing part (710) engages to perform primary position fixation and sealing.

[0178] When the fastening protrusion (P100) is fully inserted into the opening section (213a), the user rotates the nozzle section (100) counterclockwise. At this time, the fastening protrusion (P100) moves along the guide section (213b) with a 20-degree inclination angle and performs a cam action that pulls the nozzle section (100) downward. During this rotation process, the user experiences an appropriate torque of 0.5-2.0 N·m, and at the same time, the O-rings of the second sealing section (720) and the third sealing section (730) are sequentially compressed to complete the multi-layer sealing structure.

[0179] Finally, when the fastening protrusion (P100) reaches the stopper section (213c), further rotation is physically restricted, and an appropriate fastening force is automatically maintained by an over-fastening prevention mechanism. At this point, the nozzle section (100) and the fastening section (200) are completely coupled, and a perfect sealing state can be achieved, for example, even at high pressures of 0.3 MPa or higher, with a leakage amount of 0.1 mL / min or less.

[0180] Next, the separation process proceeds in the reverse order of the joining process and provides the same level of convenience. When the user rotates the nozzle part (100) clockwise, the fastening protrusion (P100) moves in the reverse direction through the guide section (213b) and pushes the nozzle part (100) upward. After the fastening protrusion (P100) reaches the opening section (213a), the nozzle part (100) is lifted vertically upward, and complete separation is achieved with an appropriate separation force of 20-60N.

[0182] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

[0183] The description of the presented embodiments is provided so that any person skilled in the art may use or practice the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not limited to the embodiments presented herein, but should be interpreted in the broadest possible scope consistent with the principles and novel features presented herein. Explanation of the symbols

[0184] 10: Container washer 100: Nozzle part 200: Connecting part 300: Wing 400: Drainage tray 500: Water supply housing 600: Magnetic part 700: Sealing part 800: Drying plate

Claims

Claim 1 A container washing machine for washing a target container comprises: a nozzle part including a nozzle head part having a nozzle hole formed for spraying washing water, a nozzle base part connected to the lower part of the nozzle head part, and a nozzle flow path part forming a washing water flow path inside; and a fastening part including a fastening head part having a fastening groove part formed therein and detachably connected to the nozzle base part, and a fastening base part connected to the lower part of the fastening head part; wherein the nozzle base part has a fastening protrusion formed therein that is inserted into the fastening groove part, and the container washing machine fastens the nozzle part and the fastening part by rotating the nozzle part in one direction by a predetermined angle while the fastening protrusion is inserted into the fastening groove part, and the nozzle flow path part comprises: a cylindrical inlet flow path through which washing water flows in from the fastening part; a first pull cone in the shape of a double cone connected to the inlet flow path and having a diameter that increases toward the center; a cylindrical first spray pipe connected to the side of the first pull cone; and a first spiral connecting pipe connected in a spiral shape to the upper part of the first pull cone. A container washer comprising: a second full cone in the shape of a cone connected to the first spiral connecting tube, the diameter of which decreases toward the top. Claim 2 A container washer according to claim 1, wherein the nozzle base portion comprises: a first nozzle base portion connected to the lower part of the nozzle head portion; and a second nozzle base portion connected to the lower part of the first nozzle base portion, formed to be smaller in diameter than the first nozzle base portion and having a step difference with the first nozzle base portion; and wherein the fastening protrusion is formed on the outer surface of the second nozzle base portion. Claim 3 A container washer according to claim 2, wherein the first nozzle base portion has a first sealing receiving space formed by being recessed upward, and the second nozzle base portion has a fastening receiving space formed by being recessed upward inside, a second sealing receiving space formed annularly along the circumference of the fastening receiving space at a position spaced apart from the fastening receiving space and recessed upward, and a first magnet receiving space formed by being further recessed upward from the second sealing receiving space. Claim 4 In claim 3, the fastening head portion comprises: a fastening shaft forming a hollow cylindrical structure; a fastening side wall formed annularly at a predetermined distance from the fastening shaft; and a fastening groove portion formed in the fastening side wall; a container washer. Claim 5 A container washer according to claim 4, wherein the fastening head portion is characterized by having a nozzle portion receiving space formed between the fastening side wall and the fastening shaft, a third sealing receiving space formed by being recessed downward from the nozzle portion receiving space, and a second magnet receiving space formed by being recessed downward from the third sealing receiving space. Claim 6 In claim 4, the fastening groove comprises: an opening section in which the fastening protrusion is inserted and withdrawn in a vertical direction; a guide section inclined at a predetermined angle downward from the opening section; and a stopper section formed extending a predetermined length in a circumferential direction at the end of the guide section; a container washer. Claim 7 A container washer according to claim 6, further comprising a magnetic part disposed on at least one of the nozzle base part or the fastening head part; wherein the magnetic part adsorbs the nozzle part and the fastening part to guide the fastening protrusion to be inserted into the fastening groove part. Claim 8 A container washer according to claim 7, wherein the magnet part comprises: a first magnet part disposed in the nozzle base part; and a second magnet part disposed in the fastening head part; wherein the first magnet part divides a predetermined area and has at least one pair of S poles and N poles disposed therein, and the second magnet part is characterized in that an N pole is disposed at a position corresponding to the S pole of the first magnet part and an S pole is disposed at a position corresponding to the N pole of the first magnet part so that when the fastening protrusion and the opening section are disposed to correspond on a vertical line, an attractive force is generated between the second magnet part and the first magnet part. Claim 9 A container washer according to claim 8, further comprising a sealing portion that seals the area where the nozzle base portion and the fastening head portion come into contact with each other; wherein the sealing portion comprises: a first sealing portion disposed in a first sealing receiving space of the first nozzle base portion; a second sealing portion disposed in a second sealing receiving space of the second nozzle base portion; and a third sealing portion disposed in a third sealing receiving space of the fastening head portion. Claim 10 delete Claim 11 delete Claim 12 A container washer for washing a target container comprises: a nozzle part including a nozzle head part having a nozzle hole formed for spraying washing water, a nozzle base part connected to the lower part of the nozzle head part, and a nozzle flow path part forming a washing water flow path inside; and a fastening part including a fastening head part having a fastening groove part formed therein and detachably connected to the nozzle base part, and a fastening base part connected to the lower part of the fastening head part; wherein the nozzle base part has a fastening protrusion formed therein that is inserted into the fastening groove part, and the container washer connects the nozzle part and the fastening part by rotating the nozzle part in one direction by a predetermined angle while the fastening protrusion is inserted into the fastening groove part, and the nozzle flow path part comprises: a cylindrical inlet flow path through which washing water flows in from the fastening part; a first full cone in the shape of a double cone connected to the inlet flow path and having a diameter that increases toward the center; a first spiral connecting pipe connected in a spiral shape to the upper part of the first full cone; a second full cone in the shape of a cone connected to the first spiral connecting pipe and having a diameter that decreases toward the upper part; and a second spiral connecting pipe connected in a spiral shape to the side of the inlet flow path. A container washer comprising: a third full cone in the shape of a cone connected to the second spiral connecting tube, the diameter of which decreases toward the outer side. Claim 13 A container washer according to claim 1, further comprising: wing portions arranged radially around the fastening portion; and a drain tray arranged below the wing portion. Claim 14 A container washer according to claim 13, further comprising: a water supply housing disposed below the drain tray; and a drying plate disposed above the drain tray.

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