A curved surface blow nozzle structure

Abstract

The utility model discloses a kind of curved surface air nozzle structures, at least two strip-shaped blowholes are provided on the outer wall of cylindrical blowing part, high-speed airflow can be simultaneously sprayed from blowhole, compared with single air port, blow more uniform and continuous;Arc-shaped flow guide wall is connected with blowhole, utilizes coanda effect, airflow forms uniform, continuous airflow layer along the surface of flow guide wall from blowhole, when contact with hair, adsorb hair, so that it reaches the effect of smooth combing and straightening. Multiple blowholes make the airflow layer on the surface of flow guide wall more uniform and continuous, further increase straightening effect and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hair dryer accessories technology, and in particular to a structure with a curved nozzle. Background Technology

[0002] Hair dryers are widely used hair styling tools in daily life. To concentrate airflow, style hair, or reduce hair damage, hair dryers are usually equipped with various functional nozzles. Among them, nozzles designed to achieve smooth and straight hair are particularly common. Existing technology includes a type of nozzle designed to connect to the hair dryer's air outlet. These nozzles typically have a single, differently shaped air outlet (e.g., round, flat, or slit-like), through which the high-speed airflow generated by the hair dryer is expelled during operation.

[0003] However, when airflow is blown out from these types of vents, the airflow is weaker in areas far from the vent, and the airflow quickly turns into turbulence after it is blown out. The airflow distribution is uneven, making it difficult for untrained hairdressers to comb and straighten the hair. The operation is relatively inconvenient, the efficiency is relatively low, and the effect is not ideal. The hair may still be tangled or it may be difficult to achieve a straight and smooth effect, especially for thick or difficult-to-manage hair. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a curved nozzle structure, which can improve the uniformity and continuity of airflow, and is more convenient to operate, thereby more effectively achieving smooth combing and even straightening of hair.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A curved nozzle structure includes a connecting part and a cylindrical blowing part disposed in front of the connecting part. The blowing part includes at least two blowing ports, which are elongated and arranged in a left-right direction on the outer wall of the blowing part. The outer wall of the blowing part is also provided with an arc-shaped guide wall that connects to the blowing ports.

[0007] There are two air outlets, namely a first air outlet and a second air outlet. The second air outlet divides the guide wall into a first guide wall and a second guide wall in an arc-shaped surface.

[0008] The blowing section is provided with a first arc-shaped air duct that communicates with the first air outlet and a second arc-shaped air duct that communicates with the second air outlet. The first arc-shaped air duct and the second arc-shaped air duct are not connected to each other.

[0009] The connecting part is provided with a first air inlet duct that communicates with the first arc-shaped air duct, and a second air inlet duct that communicates with the second arc-shaped air duct. The first air inlet duct and the second air inlet duct are not connected to each other.

[0010] The second air inlet duct includes a second air inlet end at the rear end and a connecting end at the front end that connects to the second arc-shaped air duct. The volume of the second air inlet duct gradually decreases from the air inlet end to the connecting end.

[0011] The first air inlet duct has a first air inlet end at its rear end, and the cross-sectional area of ​​the gas flow at the second air inlet end is larger than the cross-sectional area of ​​the gas flow at the first air inlet end.

[0012] The surface of the guide wall is provided with circumferential guide ridges, and the outer surface of the guide ridges is an arc surface.

[0013] The guide strip includes a near-wind end and a far-wind end, and the width of the guide strip decreases from the near-wind end to the far-wind end.

[0014] The beneficial effects of this utility model are:

[0015] Improved airflow uniformity and continuity. By incorporating at least two elongated nozzles on the outer wall of the cylindrical blower head, high-speed airflow can be simultaneously ejected from the nozzles, resulting in more uniform and continuous airflow compared to a single nozzle. The curved guide wall connects to the nozzles, utilizing the Coanda effect to create a uniform and continuous airflow layer along the surface of the guide wall. Upon contact with the hair, this airflow adheres to the hair, achieving smooth combing and straightening. Multiple nozzles further enhance the uniformity and continuity of the airflow layer on the guide wall surface, increasing the straightening effect and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the nozzle;

[0017] Figure 2 This is a cross-sectional view of the nozzle structure;

[0018] Figure 3 This is a schematic diagram of the guide wall structure of this nozzle;

[0019] Figure 4 This is a schematic diagram of the nozzle structure and the installation structure of the hair dryer. Detailed Implementation

[0020] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0021] Reference Figure 1 , Figure 4 This utility model proposes a curved nozzle structure, including a connecting part 1 for detachable connection with a blower 5, a cylindrical blowing part 2 disposed in front of the connecting part 1, the blowing part 2 including at least two blowing ports 3, the blowing ports 3 being elongated and arranged along the left and right direction on the outer wall of the blowing part 2, and the outer wall of the blowing part 2 also being provided with an arc-shaped guide wall 20 connected to the blowing ports 3.

[0022] Specifically, by setting at least two elongated air outlets 3 on the outer wall of the cylindrical air blowing part 2, high-speed airflow can be ejected from the air outlets 3 simultaneously. Compared with a single air outlet, the air blowing is more uniform and continuous, changing the situation where the airflow is concentrated in a single area and the airflow is weak far from the air outlet in the single air outlet mode.

[0023] The arc-shaped airflow guide wall 20 connects to the air outlet 3, with the air outlet 3 oriented tangentially to the airflow guide wall 20. Utilizing the Coanda effect, airflow forms a uniform and continuous airflow layer along the surface of the airflow guide wall 20 from the air outlet. When this airflow layer comes into contact with the hair, it adheres to the hair, achieving a smooth combing and straightening effect. Multiple air outlets make the airflow layer on the surface of the airflow guide wall 20 more uniform and continuous, further increasing the straightening effect and efficiency.

[0024] During use, the airflow layer on the surface of the guide wall 20 generates a more even and stronger suction force on the hair. Combined with the user's pulling action, it can achieve a more efficient and even hair straightening effect, making the hair straighter and more manageable. Furthermore, it is easy to operate, greatly enhancing the user experience.

[0025] As one embodiment, refer to Figure 1 , Figure 2 There are two air outlets 3, namely the first air outlet 31 and the second air outlet 32. The second air outlet 32 ​​divides the guide wall 20 into the first guide wall 200 and the second guide wall 201 in the arc-shaped surface.

[0026] The blower section 2 is provided with a first arc-shaped air duct 100 that communicates with the first air outlet 31 and a second arc-shaped air duct 110 that communicates with the second air outlet 32. The first arc-shaped air duct 100 and the second arc-shaped air duct 110 are not connected to each other.

[0027] The connecting part 1 is provided with a first air inlet duct 10 that communicates with the first arc-shaped air duct 100, and a second air inlet duct 11 that communicates with the second arc-shaped air duct 110. The first air inlet duct 10 and the second air inlet duct 11 are not connected to each other.

[0028] Specifically, by setting up independent first arc-shaped air duct 100, second arc-shaped air duct 110, first air inlet duct 10, and second air inlet duct 11, and ensuring that they are not interconnected, physical isolation of the airflow paths is achieved. This design effectively avoids mutual interference between different airflow paths, ensuring that the airflow intensity at different outlets does not decrease excessively.

[0029] Furthermore, referring to Figure 2 The second air inlet duct 11 includes a second air inlet end 111 at the rear end and a connecting end 112 at the front end connected to the second arc-shaped air duct 110. The volume of the second air inlet duct 11 gradually decreases from the air inlet end 111 to the connecting end 112.

[0030] The rear end of the first air inlet duct 10 is provided with a first air inlet end 101, and the cross-sectional area of ​​the gas flow of the second air inlet end 111 is larger than the cross-sectional area of ​​the gas flow of the first air inlet end 101.

[0031] Specifically, the second air inlet duct 11 is connected to the second arc-shaped air duct 110 with a relatively long path. In order to further ensure that the air intensity of the second air outlet 32 ​​is similar to that of the first air outlet 31, the cross-sectional area of ​​the second air inlet end 111 of the second air inlet duct 11 is larger than that of the first air inlet end 101, so as to ensure a larger air intake and optimize airflow distribution. In addition, the volume of the second air inlet duct 11 gradually decreases towards the connecting end 112, which can accelerate the airflow and ensure the air volume and stability of the second air outlet 32.

[0032] The independent air duct design helps guide the airflow to flow more smoothly and regularly, reducing the possibility of turbulence and eddies in the airflow within the air duct. This ensures that the initial state of the airflow ejected from the air outlet 3 is closer to laminar flow, further improving the stability and adsorption effect of the subsequent wall-adhering airflow.

[0033] Reference Figure 3 The surface of the guide wall 20 is provided with a circumferential guide rib 4, and the outer surface of the guide rib 4 is an arc surface.

[0034] The guide strip 4 includes a near-wind end 40 and a far-wind end 41, and the width of the guide strip 4 decreases from the near-wind end 40 to the far-wind end 41.

[0035] Specifically, the guide strip 4 guides and constrains the airflow, further promoting the high-speed airflow to flow closely against the surface of the guide wall 3, thus enhancing the utilization efficiency of the Coanda effect. The width of the guide strip 4 is designed to decrease from the near-wind end 40 to the far-wind end 41. This gradual structure conforms to the principles of gas dynamics, which can guide the airflow transition more smoothly, help maintain the airflow's adhesion state, reduce the risk of airflow separating from the wall and forming turbulence, thereby extending the effective adsorption area and improving the overall combing and straightening effect.

[0036] In summary, this hair dryer nozzle structure, through the inclusion of at least two air outlets 3, an optimized airflow guide wall 20 structure, and independent air ducts, optimized air inlet ducts, and airflow guide ridges 4, significantly improves the uniformity, continuity, and stability of airflow on the outer wall of the nozzle, greatly enhancing the adsorption force generated by the Coanda effect. This directly results in more convenient operation, smoother combing, more even and significant straightening effects, and suitability for all hair types (especially thick and difficult-to-manage hair).

Claims

1. A structure with a curved nozzle, characterized in that, It includes a connecting part (1) and a cylindrical blowing part (2) disposed in front of the connecting part (1). The blowing part (2) includes at least two blowing ports (3). The blowing ports (3) are elongated and arranged in the left-right direction on the outer wall of the blowing part (2). The outer wall of the blowing part (2) is also provided with an arc-shaped guide wall (20) that connects to the blowing ports (3).

2. The structure of a curved nozzle according to claim 1, characterized in that, There are two air outlets (3), namely the first air outlet (31) and the second air outlet (32). The second air outlet (32) divides the guide wall (20) into the first guide wall (200) and the second guide wall (201) in the arc-shaped surface.

3. The structure of a curved nozzle according to claim 2, characterized in that, The blowing section (2) is provided with a first arc-shaped air duct (100) communicating with the first air outlet (31) and a second arc-shaped air duct (110) communicating with the second air outlet (32). The first arc-shaped air duct (100) and the second arc-shaped air duct (110) are not connected to each other.

4. The structure of a curved nozzle according to claim 3, characterized in that, The connecting part (1) is provided with a first air inlet duct (10) communicating with the first arc-shaped air duct (100) and a second air inlet duct (11) communicating with the second arc-shaped air duct (110). The first air inlet duct (10) and the second air inlet duct (11) are not connected to each other.

5. The structure of a curved nozzle according to claim 4, characterized in that, The second air inlet duct (11) includes a second air inlet end (111) at the rear end and a connecting end (112) at the front end connected to the second arc-shaped air duct (110). The volume of the second air inlet duct (11) gradually decreases from the air inlet end (111) to the connecting end (112).

6. The structure of a curved nozzle according to claim 5, characterized in that, The first air inlet duct (10) has a first air inlet end (101) at its rear end, and the cross-sectional area of ​​the gas flow at the second air inlet end (111) is larger than the cross-sectional area of ​​the gas flow at the first air inlet end (101).

7. The structure of a curved nozzle according to claim 1, characterized in that, The surface of the guide wall (20) is provided with a circumferential guide ridge (4), and the outer surface of the guide ridge (4) is an arc surface.

8. The structure of a curved nozzle according to claim 7, characterized in that, The guide strip (4) includes a near-wind end (40) and a far-wind end (41), and the width of the guide strip (4) decreases from the near-wind end (40) to the far-wind end (41).

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