Nozzle with spiral air channel and air brush

Abstract

The utility model belongs to the technical field of nozzles with spiral air passages, and discloses a nozzle with a spiral air passage, which comprises a nozzle and a spray cover, the nozzle comprises a mounting part, the mounting part is provided with a first cavity, the inner wall of the spray cover is provided with a second cavity, and the first cavity and the second cavity are bent. The first cavities and the second cavities jointly form a plurality of bent air channels. The bending degree of the air channels can be adjusted according to requirements, so that different air flow sizes are achieved, different spraying requirements are met, meanwhile, the number of the spiral air channels can be adjusted according to requirements, different air flow sizes are achieved, various spraying tasks can be flexibly adapted, and the spraying efficiency is improved. The bent air channel can effectively prolong the passing time of air in the air channel, so that the jetted air flow is more stable and continuous, the low-pressure atomization effect of the air brush is effectively improved, the stability of the air flow is improved, and the spraying atomization effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral micro airway nozzles, in particular to a nozzle and a spray pen with a spiral airway. Background Art

[0002] Spraying technology is widely used in the fields of industry and art, especially in automobile manufacturing, furniture painting, and artistic creation. As an efficient spraying tool, the airbrush sprays the pigment in atomized form through high-pressure airflow, which can achieve a uniform and delicate spraying effect. With the development of technology, the design and manufacture of airbrushes are also constantly improving to meet the market's higher requirements for spraying effects and efficiency.

[0003] The core component of the airbrush is the nozzle, and its design directly affects the quality and efficiency of spraying. The traditional airbrush nozzle design mainly relies on the cavity between the nozzle cap and the nozzle to form negative pressure through high-speed airflow to achieve atomized spraying of the pigment. Although there are differences in the nozzle design of airbrushes on the market, most of them use a similar vertical airway design, which means that it is impossible to increase the airflow without increasing the cross-sectional area of ​​the airway. This design limits the increase in airflow to a certain extent, which in turn affects the spraying effect.

[0004] Therefore, a nozzle and an airbrush with a spiral air passage are proposed to solve the above-mentioned problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a nozzle and a spray brush with a spiral airway, aiming to solve the existing problem that the air flow rate cannot be increased and the spraying effect cannot be improved without increasing the cross-sectional area of ​​the airway.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model proposes a nozzle with a spiral airway, which is installed at the front end of the airbrush, and also includes a spray cover connected to the nozzle, the nozzle includes a mounting portion, the mounting portion is provided with a plurality of groups of first cavities, the inner wall of the spray cover is provided with a plurality of groups of second cavities, the first cavities and the second cavities are both curved, when the nozzle is connected to the spray cover, the plurality of the first cavities and the second cavities together form a plurality of curved airways, the airways are provided with a spiral portion, and the spiral portion makes the length of the airway path greater than the distance between the two ends of the airway.

[0007] Furthermore, the airway is provided with three groups, the spiral portion includes a first fulcrum and a second fulcrum, and the connection angle between the first fulcrum and the second fulcrum is 60° to 180°.

[0008] Furthermore, the airway is provided with six groups, the spiral portion includes a third fulcrum and a fourth fulcrum, and the connection angle between the third fulcrum and the fourth fulcrum is 60° to 180°.

[0009] Furthermore, the nozzle further comprises a connecting portion and an air outlet portion, the mounting portion is arranged between the connecting portion and the air outlet portion, and the connecting portion is connected to the airbrush.

[0010] Furthermore, the gas outlet portion is conical in shape, and is used to guide the gas in the airway in a direction away from the connecting portion.

[0011] Furthermore, the air outlet portion includes a first drainage unit and a second drainage unit, one end of the first drainage unit is connected to an end of the mounting portion away from the connecting portion, and the other end of the first drainage unit is connected to the second drainage unit.

[0012] Furthermore, the nozzle also includes a liquid spraying port, which is connected to a liquid storage tank of the airbrush for spraying paint.

[0013] Furthermore, the outlet direction of the air passage is parallel to the central axis of the nozzle on the horizontal projection plane.

[0014] Another embodiment of the present application is a spray pen, comprising the nozzle with the spiral air channel as described in any of the above embodiments, wherein the connecting portion is connected to the spray pen bolt.

[0015] Beneficial effects:

[0016] The utility model discloses a nozzle with a spiral air passage, comprising a nozzle and a spray hood, wherein the nozzle comprises a mounting portion, a first cavity is arranged on the mounting portion, a second cavity is arranged on the inner wall of the spray hood, the first cavity and the second cavity are both arranged in a curved manner, when the nozzle is connected to the spray hood, a plurality of first cavities and the second cavities jointly form a plurality of curved air passages, the air passages are provided with a spiral portion, and the spiral portion makes the length of the air passage path greater than the spacing between the two ends of the air passages; the arrangement of forming a plurality of air passages can adjust the curvature of the air passages according to needs to achieve different airflow sizes, thereby meeting different spraying requirements, and at the same time, the number of spiral air passages can also be adjusted according to needs to achieve different airflow sizes, thereby flexibly adapting to various spraying tasks, the spiral air passage makes the air flow along the spiral path when passing through the air passage, thereby extending the path length and residence time of the air in the air passage, the extended flow path and residence time make the air flow more stable, effectively reduce the turbulence and instability of the airflow, effectively increase the low-pressure atomization effect of the airbrush, improve the airflow stability, and make the spray atomization effect better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the first form of a nozzle with a spiral air passage in one embodiment of the utility model;

[0018] Figure 2 is the second form of the nozzle with a spiral air passage in an embodiment of the present utility model;

[0019] Figure 3 is the third form of the nozzle with a spiral air passage in an embodiment of the present utility model;

[0020] Figure 4 is the fourth form of the nozzle with a spiral air passage in an embodiment of the present utility model;

[0021] Figure 5 is the fifth form of the nozzle with a spiral air passage in an embodiment of the present utility model;

[0022] Figure 6 is the sixth form of the nozzle with a spiral air passage in an embodiment of the present utility model;

[0023] Wherein:

[0024] 1. Installation part;

[0025] 2. Connection part;

[0026] 3. Air outlet part; 31. First drainage unit; 32. Second drainage unit;

[0027] 4. Air passage;

[0028] 5. Liquid spraying port;

[0029] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0030] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically and clearly defined.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0034] Refer to Figures 1 to 6, a nozzle with a spiral air passage 4, which is installed at the front end of an airbrush, further includes a spray hood connected to the nozzle. The nozzle includes an installation part 1, and the installation part 1 is provided with several groups of first cavities. The inner wall of the spray hood is provided with several groups of second cavities. Both the first cavities and the second cavities are curved. When the nozzle is connected to the spray hood, several of the first cavities and the second cavities jointly form several curved air passages 4. The air passage 4 is provided with a spiral part, and the spiral part makes the length of the path of the air passage 4 greater than the distance between the two ends of the air passage 4.

[0035] In the embodiment of the present application, the airbrush includes a nozzle and a spray hood connected thereto. Among them, the nozzle includes an installation part 1. The outer surface of the installation part 1 is vertically provided with first cavities, and the inner wall of the spray hood is vertically provided with second cavities. Both the first cavities and the second cavities are provided with multiple groups. When the nozzle and the spray hood are connected, the first cavities and the second cavities jointly form the air passage 4. In this embodiment, the air passage 4 is an air channel, and air flows rapidly through these several air passages 4, thereby forming a negative pressure area at the front end of the nozzle. The liquid inside the nozzle is sucked out, and then the liquid is blown away by the high-speed air flow to form extremely small particles, so as to achieve the atomization effect;

[0036] The air passage 4 is in a spiral shape. The spiral air passage 4 makes the air flow along a spiral path when passing through the air passage 4, extending the path length and residence time of the air in the air passage 4. The extended flow path and residence time make the air flow more stable, effectively reducing the turbulence and instability of the air flow. The increased air passing time also enables the air flow to mix more fully with the paint, thereby improving the atomization effect; at the same time, the air passes along the spiral path. By adjusting the spiral degree of the air passage 4, the size of the air flow can be controlled to meet different spraying requirements. In addition, by adjusting the number of the spiral air passages 4, different air flow configurations can be realized to adapt to various spraying tasks. For example, multiple spiral air passages 4 can generate a larger air flow, while fewer air passages 4 generate a smaller air flow. Such a design makes it possible to flexibly adjust the size of the air flow and adapt to various spraying requirements, achieving precise control from large-area spraying to detailed spraying.

[0037] In one embodiment, there are three groups of the air passages 4, and the three groups of the air passages 4 are evenly distributed on the installation part 1. The air passage 4 includes a first fulcrum and a second fulcrum, and the connection angle between the first fulcrum and the second fulcrum is 60° - 180°;

[0038] There are six groups of the air passages 4, and the six groups of the air passages 4 are evenly distributed on the installation part 1. The air passage 4 includes a third fulcrum and a fourth fulcrum, and the connection angle between the third fulcrum and the fourth fulcrum is 60° - 180°.

[0039] As Figure 1As shown, when there are six groups of air passages 4, the spiral degree of the air passage 4 is 60 degrees, such as Figure 2 When there are six groups of air passages 4, the spiral degree of the air passage 4 is 120 degrees, such as Figure 3 When there are six groups of air passages 4, the spiral degree of the air passage 4 is 180 degrees; such as Figures 3 to 4 They are all the spiral degrees of the air passage 4 when the air passage 4 is set to three groups, which are 60°, 120° and 180° in sequence respectively.

[0040] Specifically, the air passage 4 is designed with three groups and six groups respectively. The design of three groups is applicable to work that requires high precision and delicate spraying effects, such as art creation, model making, cosmetics spraying, etc. Each group of air passages 4 bears a relatively large air flow and a relatively high flow rate, and can achieve an effective atomization effect within a certain range.

[0041] The design of six groups of air passages 4, due to the relatively large number of air passages 4, is applicable to scenarios with high requirements for spraying effects, especially for high fineness and uniformity requirements.

[0042] When the spiral degree of the air passage 4 is 60 degrees, it is applicable to large-area and rapid spraying, such as wall spraying, car painting, etc., for work that needs to cover a large area and has tight time requirements. In these scenarios, a higher air flow speed helps to quickly cover the spraying area and improve work efficiency; when the spiral degree of the air passage 4 is 120 degrees, it is applicable to general spraying tasks, such as furniture spraying, model making, etc., for work that requires a certain degree of fineness and uniformity. In these scenarios, a medium air flow speed and good atomization effect can provide a balanced spraying quality; when the spiral degree of the air passage 4 is 180 degrees, it is applicable to work that requires high precision and delicate spraying effects, such as art creation, cosmetics spraying, etc. In these scenarios, a longer air flow path and high atomization effect can provide a high-quality spraying effect to meet the needs of detailed spraying.

[0043] Based on the above, the purpose of such a setting is that the spiral degree of the air passage 4 can be adjusted, and at the same time, the number of air passages 4 can be increased or decreased, and according to the performance requirements of different models or styles of airbrushes, for example, airbrushes for large-area spraying need to be configured with a large air flow; airbrushes for small-detail spraying are configured with a small air flow to achieve precise configuration of the air flow.

[0044] In another embodiment, the air passages 4 are uniformly and non-vertically arranged in the circumferential direction of the nozzle.

[0045] The nozzle further includes a connecting portion 2 and an air outlet portion 3. The mounting portion 1 is arranged between the connecting portion 2 and the air outlet portion 3, and the connecting portion 2 is connected to the airbrush body.

[0046] The connecting portion 2 is bolted to the airbrush body. The purpose of such a setting is to enable the nozzle to be firmly connected to the airbrush body, and at the same time, it is also convenient for disassembly and replacement.

[0047] The air outlet part 3 is conical and is used to drain the gas in the air passage 4 in a direction away from the connection part 2;

[0048] The air outlet part 3 includes a first drainage unit 31 and a second drainage unit 32. One end of the first drainage unit 31 is connected to the end of the installation part 1 away from the connection part 2, and the other end of the first drainage unit 31 is connected to the second drainage unit 32.

[0049] The air outlet part 3 is conical. The air outlet part 3 includes a first drainage unit 31 and a second drainage unit 32. One end of the first drainage unit 31 is connected to the end of the installation part 1 away from the connection part 2, and the other end is connected to the second drainage unit 32. The conical air outlet part 3 is designed so that the air flow can be smoothly and quickly led out from the air passage 4, improving the flow rate and stability of the air flow. According to Bernoulli's principle, the increase in fluid velocity is accompanied by a decrease in pressure. When compressed air passes through the air passage 4 outside the narrow nozzle, the air flow rate increases, and the pressure at the nozzle tip decreases, so that the paint is sucked into the air flow and atomized into fine droplets. This design further improves the atomization effect of spraying. The airbrush can maintain a high atomization effect without increasing the cross-sectional area of the air passage 4, thereby increasing the air flow rate and spraying effect.

[0050] The nozzle further includes a liquid spraying port 5 which communicates with the liquid storage tank of the airbrush and is used for spraying the paint.

[0051] The liquid spraying port 5 is designed at the nozzle tip, which is convenient for the paint to be quickly sucked in and atomized under the action of high-pressure air flow. The liquid spraying port 5 is connected to the liquid storage tank of the airbrush. When the airbrush is started, the paint enters the nozzle through the liquid spraying port 5 under the negative pressure action of the air flow. When the high-pressure air flow enters the nozzle tip through the spiral air passage 4, due to the Bernoulli effect, the air flow rate increases, the pressure at the liquid spraying port 5 decreases, the paint in the low-pressure area is quickly sucked into the air flow, and under the action of the shear force of the high-speed air flow, it is atomized into fine droplets. The atomized paint is sprayed onto the target surface through the nozzle, forming a uniform spraying effect. Combined with the design of the spiral air passage 4, the air flow can be more stable and uniform, further improving the atomization effect.

[0052] The outlet direction of the air passage 4 is parallel to the central axis of the nozzle in the horizontal projection plane.

[0053] The parallel outlet direction of the air passage 4 ensures that the ejected air flow will not generate vortices or disorders at the outlet, so that the sprayed lines are smoother and more consistent. This design can effectively reduce the influence of air flow fluctuations on the spraying effect during the actual spraying process and improve the uniformity and quality of spraying.

[0054] Another embodiment of the present application provides an airbrush, which includes a nozzle with a spiral air passage 4 as described in any of the above embodiments, and the connecting portion 2 is bolted to the airbrush.

[0055] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A nozzle with a spiral air channel (4), mounted on the front end of an airbrush, characterized in that: It also includes a spray hood connected to the nozzle, the nozzle includes a mounting portion (1), the mounting portion (1) is provided with a plurality of first cavities, the inner wall of the spray hood is provided with a plurality of second cavities, the first cavities and the second cavities are both arranged in a curved manner, when the nozzle is connected to the spray hood, the plurality of the first cavities and the second cavities together form a plurality of curved airways (4), the airways (4) are provided with a spiral portion, the spiral portion makes the length of the airway (4) path greater than the distance between the two ends of the airway (4).

2. The nozzle with a spiral air channel (4) according to claim 1, characterized in that: The air passages (4) are provided in three groups, and the three groups of air passages (4) are evenly distributed on the mounting portion (1). The spiral portion comprises a first fulcrum and a second fulcrum, and the connection angle between the first fulcrum and the second fulcrum is 60° to 180°.

3. The nozzle with a spiral air channel (4) according to claim 1, characterized in that: The air passages (4) are provided in six groups, and the six groups of the air passages (4) are evenly distributed on the mounting portion (1); the spiral portion comprises a third fulcrum and a fourth fulcrum, and the connection angle between the third fulcrum and the fourth fulcrum is 60° to 180°.

4. The nozzle with a spiral air channel (4) according to claim 1, characterized in that: The nozzle further comprises a connecting portion (2) and an air outlet portion (3), the mounting portion (1) is arranged between the connecting portion (2) and the air outlet portion (3), and the connecting portion (2) is connected to the airbrush.

5. The nozzle with a spiral air channel (4) according to claim 4, characterized in that: The gas outlet portion (3) is conical in shape and is used to guide the gas in the gas passage (4) in a direction away from the connecting portion (2).

6. The nozzle with a spiral air channel (4) according to claim 5, characterized in that: The air outlet portion (3) comprises a first drainage unit (31) and a second drainage unit (32); one end of the first drainage unit (31) is connected to an end of the mounting portion (1) away from the connecting portion (2); and the other end of the first drainage unit (31) is connected to the second drainage unit (32).

7. The nozzle with a spiral air channel (4) according to claim 1, characterized in that: The nozzle also comprises a liquid spraying port (5), and the liquid spraying port (5) is connected to the liquid storage tank of the airbrush for spraying the paint.

8. The nozzle with a spiral air channel (4) according to claim 1, characterized in that: The outlet direction of the air channel (4) is parallel to the central axis of the nozzle on a horizontal projection plane.

9. An airbrush, characterized in that: The invention comprises a nozzle with a spiral air passage (4) as claimed in any one of claims 1 to 8, wherein the connecting portion (2) is connected to the spray gun bolt.

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