Flexible tuyere

Abstract

The utility model provides a flexible tuyere, and relates to the field of hair care equipment.The flexible tuyere comprises a shell, a flow guide structure, an air inlet allowing airflow to pass through and an air outlet allowing airflow to be exhausted, the flow guide structure is arranged in the shell and comprises a first air guide face and a second air guide face, the first air guide face is arranged on the inner side of the flow guide structure, and the second air guide face is arranged on the outer side of the flow guide structure; the first air guide face is arranged on the outer side of the flow guide structure, the second air guide face is arranged on the outer side of the flow guide structure, the inner wall of the shell and the second air guide face are enclosed to form a second air guide cavity, the first air guide cavity and the second air guide cavity communicate with the air inlet and the air outlet, the shell extends out of the flow guide structure, and the part, exceeding the flow guide structure, of the shell expands outwards. The second air guide face is gradually close to the inner wall of the shell in the direction from the air inlet to the air outlet, and the first air guide face is gradually shrunk in the direction from the air inlet to the air outlet. By means of the arrangement, air blown out by the blower is divided into two parts, a double-air-guiding structure is formed, airflow is processed, and flexible air is formed.

Description

Technical Field

[0001] This application relates to the field of hair care devices, and in particular to a flexible nozzle. Background Technology

[0002] Current hair dryer nozzles work by channeling the air from the hair dryer through a narrow channel in a concentrator nozzle to create a more concentrated, powerful breeze, or through a wide channel in a volumizing nozzle to create a more dispersed, gentle breeze, thus achieving the desired styling effect. However, concentrator nozzles have a stronger airflow and more concentrated air movement, which can cause discomfort and difficulty breathing when blowing air onto the face; while gentle nozzles have a weaker airflow, requiring more time to dry hair. Summary of the Invention

[0003] To address the aforementioned issues, this application provides a flexible nozzle that, through a guiding structure, divides the airflow from the hair dryer into two, forming a dual airflow chamber. This neutralizes the strong airflow from the concentrated nozzle and the weak airflow from the flexible nozzle, resulting in a flexible airflow. Consequently, the airflow rectified by this nozzle is neither as strong as that from the concentrated nozzle nor takes as long to dry hair as existing flexible nozzles on the market.

[0004] A flexible air nozzle includes a shell and a flow guiding structure, an air inlet for airflow, and an air outlet for airflow discharge. The flow guiding structure is disposed inside the shell and includes a first air guiding surface and a second air guiding surface. The first air guiding surface is disposed on the inner side of the flow guiding structure and forms a first air guiding cavity. The second air guiding surface is disposed on the outer side of the flow guiding structure. The inner wall of the shell and the second air guiding surface form a second air guiding cavity. The first air guiding cavity and the second air guiding cavity are both connected to the air inlet and the air outlet. The shell extends beyond the flow guiding structure, and the portion of the shell extending beyond the flow guiding structure expands outward. The second air guiding surface gradually approaches the inner wall of the shell from the air inlet toward the air outlet, and the first air guiding surface contracts from the air inlet toward the air outlet.

[0005] The advantage is that the airflow guiding structure can split the air blown out by the hair dryer into two, forming a dual airflow guiding chamber, which processes the airflow differently. In particular, the airflow speed is increased through the first airflow guiding chamber, and then the airflow discharged from the first and second airflow guiding chambers mixes inside the outer shell. The outward-diffusing outer shell reduces the speed of the mixed airflow, so as to achieve the purpose of making the wind gentle, but not too gentle. Thus, the flexible nozzle can provide a gentle wind without excessively increasing the drying time.

[0006] Preferably, the first air guide surface and the second air guide surface intersect near the air inlet, and the first air guide surface and the second air guide surface gradually move away from each other along the airflow direction.

[0007] The advantage is that the first and second air guide surfaces intersect near the air inlet, which allows the air blown out of the air inlet to be split into two, and guided by the first and second air guide surfaces respectively, reducing airflow resistance and reducing air volume loss.

[0008] Preferably, the first air guide surface and the second air guide surface form an acute angle.

[0009] The advantages are that it reduces the volume of the airflow guiding structure, reduces the space occupied by the airflow guiding structure, makes the nozzle smaller, and reduces costs.

[0010] Preferably, the first end of the second air guide surface away from the air inlet is higher than the first end of the first air guide surface away from the air inlet, and the air guiding structure further includes an annular inclined surface, which connects the first end of the first air guide surface and the first end of the second air guide surface.

[0011] Preferably, the first end of the second air guide surface away from the air inlet is lower than the first end of the first air guide surface away from the air inlet, and the air guiding structure further includes an annular inclined surface, which connects the first end of the first air guide surface and the first end of the second air guide surface.

[0012] The advantage is that the first end of the second air guide surface away from the air inlet and the first end of the first air guide surface away from the air inlet form a height difference and are connected by an annular inclined surface. This arrangement allows the airflow discharged from the first air guide cavity or the second air guide cavity to be guided by the annular inclined surface, reducing the generation of eddies.

[0013] Preferably, both the first air guide surface and the second air guide surface are arc-shaped.

[0014] The advantage is that the curved air guide surface guides the airflow, reducing wind loss and the generation of eddies, and lowering noise.

[0015] Preferably, the outer shell and the airflow guiding structure are connected by connecting ribs, and there are multiple connecting ribs arranged at intervals along the circumference of the second airflow guiding surface. The air inlet includes a first air inlet communicating with the first airflow guiding cavity and a second air inlet communicating with the second airflow guiding cavity. The first air inlet is defined by the first airflow guiding surface, and the second air inlet is defined by the second airflow guiding surface and the inner wall of the outer shell.

[0016] The advantage is that the outer shell and the airflow guiding structure are connected by connecting ribs, which makes the structure simple, and the air can be blown out from near the connecting ribs without obstructing the airflow and reducing air volume loss.

[0017] Preferably, the outer shell includes a first enclosure and a second enclosure, the second enclosure being disposed above the first enclosure, the first enclosure being an annular ring, and the second enclosure being configured to extend in an arc from the first enclosure to the outer side of the outer shell, the first enclosure surrounding the flow guiding structure, and the second enclosure being located above the flow guiding structure.

[0018] The advantage is that the airflow speed through the second air guide cavity is increased by the cooperation of the first enclosure and the second air guide surface, so as to prevent the airflow speed from decreasing too much after passing through the second enclosure and thus increasing the drying time.

[0019] Preferably, the second enclosure is provided with a plurality of ventilation openings arranged at intervals, the ventilation openings are V-shaped, the openings of the ventilation openings face the air outlet direction, and the width of the ventilation openings gradually increases along the aforementioned direction.

[0020] The advantage is that the spaced-out vents further disperse the airflow from the outlets, making the airflow gentler.

[0021] Preferably, the height of the first enclosure is h1, and the height of the second enclosure is h2, where 1 ≤ h2 / h1 ≤ 2. This provides the advantage of obtaining a gentle breeze without excessively increasing drying time, while also reducing the size of the nozzle. When h2 / h1 < 1, the airflow velocity from the outlet is still very high, making it difficult to effectively obtain a gentle breeze. When h2 / h1 > 2, the nozzle length is too long, which is not conducive to portability and storage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram (three-dimensional view) of the flexible nozzle described in this utility model.

[0023] Figure 2 This is a cross-sectional view of the flexible air nozzle described in this utility model;

[0024] Figure 3 This is a schematic diagram (front view) of the flexible nozzle described in this utility model.

[0025] Figure 4 This is a schematic diagram (bottom view) of the flexible nozzle described in this utility model.

[0026] 1. Outer shell; 101. First enclosure; 102. Second enclosure; 2. Airflow guiding structure; 201. First air guide surface; 202. Second air guide surface; 2011. First air guide cavity; 2022. Second air guide cavity; 3. Air inlet; 301. First air inlet; 302. Second air inlet; 4. Air outlet; 5. Connecting rib; 6. Ventilation opening; 7. Annular slope. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figure 1-4 As shown, a flexible air nozzle includes a housing 1, a flow guiding structure 2, an air inlet 3 for airflow passage, and an air outlet 4 for airflow discharge. The flow guiding structure 2 is disposed inside the housing 1 and includes a first air guiding surface 201 and a second air guiding surface 202. The first air guiding surface 201 is disposed on the inner side of the flow guiding structure 2, forming a first air guiding cavity 2011. The second air guiding surface 202 is disposed on the outer side of the flow guiding structure 2. The inner wall of the housing 1 and the second air guiding surface are connected. The first air guide 2011 and the second air guide 2022 are connected to the air inlet 3 and the air outlet 4. The outer shell 1 extends beyond the flow guiding structure 2, and the portion of the outer shell 1 that extends beyond the flow guiding structure 2 diffuses outward. The second air guide surface 202 gradually approaches the inner wall of the outer shell 1 from the air inlet 3 toward the air outlet 4, and the first air guide surface 201 gradually contracts from the air inlet 3 toward the air outlet 3.

[0031] The airflow guiding structure 2 divides the internal space of the outer shell 1 into a first airflow guiding cavity 2011 and a second airflow guiding cavity 2022. The airflow guiding structure 2 splits the air blown out from the air inlet 3 into two parts, which are blown out from the first airflow guiding cavity 2011 and the second airflow guiding cavity 2022 respectively. The dual airflow guiding cavities process the airflow differently. The airflow speed is increased through the first airflow guiding cavity 201. Then, the airflow discharged from the first airflow guiding cavity 201 and the second airflow guiding cavity 202 mixes inside the outer shell 1. The airflow speed is reduced by the outward diffusion of the outer shell 1 to achieve the purpose of making the wind gentle, but not too gentle. Thus, a gentle wind is obtained through the flexible nozzle, but the drying time is not increased too much.

[0032] like Figure 2 , 3 As shown, the first air guide surface 201 and the second air guide surface 202 intersect near the air inlet 3, and gradually move away from each other along the airflow direction. The intersection of the first air guide surface 201 and the second air guide surface 202 near the air inlet 3 makes the longitudinal section of the air guide structure 2 present an inverted cone shape, which makes the two streams of air flow out more smoothly. Furthermore, the air blown out from the air inlet 3 is guided by the first air guide surface 201 and the second air guide surface 202 respectively, reducing resistance to airflow and reducing air volume loss.

[0033] Furthermore, an acute angle is formed between the first air guide surface 201 and the second air guide surface 202. This configuration reduces the volume of the air guide structure 2, minimizes its space occupation, and allows for miniaturization of the nozzle, while also reducing costs.

[0034] like Figure 1 , 2 As shown, the first end of the second air guide surface 202 away from the air inlet 3 is higher than the first end of the first air guide surface 201 away from the air inlet 3. The air guide structure 2 also includes an annular inclined surface 7, which connects the first end of the first air guide surface 201 and the first end of the second air guide surface 202.

[0035] Understandably, the first end of the second air guide surface 202 away from the air inlet 3 is lower than the first end of the first air guide surface 201 away from the air inlet 3. The air guide structure 2 also includes an annular inclined surface 7, which connects one end of the first air guide surface 201 and the first end of the second air guide surface 202.

[0036] With this configuration, the first end of the second air guide surface 202 away from the air inlet 3 and the first end of the first air guide surface 201 away from the air inlet 3 form a height difference and are connected by an annular inclined surface 7. This allows the airflow discharged from the first air guide cavity 210 and the second air guide cavity 202 to be guided by the annular inclined surface 7, reducing the generation of vortices.

[0037] like Figure 1 , 2 As shown, both the first air guide surface 201 and the second air guide surface 202 are arc-shaped. It can be understood that the air blown out from the air inlet 3 is blown outwards along the arc of the second air guide surface 202. The arc-shaped air guide surface guides the airflow, reducing wind loss and eddy current generation, and lowering noise.

[0038] like Figure 1-3 As shown, the outer shell 1 and the airflow guiding structure 2 are connected by connecting ribs 5. There are multiple connecting ribs 5, which are arranged at intervals along the circumference of the second airflow guiding surface 202. With this configuration, the outer shell 1 and the airflow guiding structure 2 are connected by connecting ribs 5, which is simple in structure, easy to assemble, and allows air to be blown out from near the connecting ribs 5 without obstructing the airflow.

[0039] like Figure 1 , 3 As shown, the air inlet 3 includes a first air inlet 401 communicating with the first air guide cavity 2011 and a second air inlet 402 communicating with the second air guide cavity 2022. The first air inlet 401 is defined by the first air guide surface 201, and the second air inlet 402 is defined by the second air guide surface 202 and the inner wall of the outer shell 1. It can be understood that the air inlet 3 is divided into two by the airflow guiding structure 2, becoming a first air inlet 301 and a second air inlet 302.

[0040] like Figure 1 As shown, the outer shell 1 is divided into a first enclosure 101 and a second enclosure 102. The second enclosure 102 is disposed above the first enclosure 101. The first enclosure 101 is a ring. The second enclosure 102 is configured to extend arcuately from the first enclosure 101 to the outer side of the outer shell 1. The first enclosure 101 surrounds the flow guiding structure 2, and the second enclosure 102 is located above the flow guiding structure 2.

[0041] With this configuration, the airflow velocity through the second air guide cavity is increased by the cooperation of the first enclosure 101 and the second enclosure 102, so as to prevent the airflow velocity from decreasing too much after passing through the second enclosure and thus increasing the drying time.

[0042] Furthermore, the second enclosure 102 is provided with spaced ventilation openings 6, the ventilation openings 6 are V-shaped, the openings of the ventilation openings 6 face the air outlet 4, and the width of the ventilation openings 6 gradually increases along the aforementioned direction.

[0043] By arranging the vents 6 at intervals, the airflow discharged from the air outlet 3 is further dispersed by the vents 6, making the airflow more gentle.

[0044] Furthermore, such as Figure 1 , 4 As shown, the height of the first enclosure 101 is h1, the height of the second enclosure 102 is h2, and 1≤h2 / h1≤2.

[0045] This setup achieves a gentle airflow without excessively increasing drying time, while also minimizing the size of the nozzle.

[0046] When h2 / h1 < 1, the airflow velocity from outlet 4 is still very high, making it impossible to effectively obtain a flexible breeze; when h2 / h1 > 2, the nozzle length is too long, which is not conducive to portability and storage. In this example, h2 / h1 = 1.5.

[0047] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.

Claims

1. A flexible tuyere, characterized in that, The air conditioner comprises a shell and a flow guide structure, an air inlet for air flow, and an air outlet for air flow, the flow guide structure is arranged in the shell, the flow guide structure comprises a first air guide surface and a second air guide surface, the first air guide surface is arranged on the inner side of the flow guide structure, the first air guide surface is enclosed to form a first air guide cavity, the second air guide surface is arranged on the outer side of the flow guide structure, the inner wall of the shell and the second air guide surface are enclosed to form a second air guide cavity, the first air guide cavity and the second air guide cavity are in communication with the air inlet and the air outlet, the shell extends beyond the flow guide structure, and the part of the shell beyond the flow guide structure expands outward, the second air guide surface gradually approaches the inner wall of the shell from the air inlet to the air outlet, and the first air guide surface shrinks from the air inlet to the air outlet.

2. A flexible air nozzle according to claim 1, wherein The first air guide surface and the second air guide surface intersect near the air inlet, and gradually move away from each other along the air flow direction.

3. A flexible air nozzle according to claim 2, wherein, An acute angle is formed between the first air guide surface and the second air guide surface.

4. The flexible air nozzle of claim 2, wherein, The first end of the second air guide surface away from the air inlet is higher than the first end of the first air guide surface away from the air inlet, and the flow guide structure further comprises an annular inclined surface connecting the first end of the first air guide surface and the first end of the second air guide surface.

5. The flexible air nozzle of claim 2, wherein, The first end of the second air guide surface away from the air inlet is lower than the first end of the first air guide surface away from the air inlet, and the flow guide structure further comprises an annular inclined surface connecting one end of the first air guide surface and the first end of the second air guide surface.

6. A flexible tuyere according to any one of claims 1 to 5, wherein The first air guide surface and the second air guide surface are both arc-shaped.

7. A flexible tuyere according to any one of claims 1 to 5, wherein The shell and the flow guide structure are connected by connecting ribs, the connecting ribs are arranged along the circumference of the second air guide surface, the air inlet comprises a first air inlet communicating with the first air guide cavity and a second air inlet communicating with the second air guide cavity, the first air inlet is defined by the first air guide surface, and the second air inlet is defined by the second air guide surface and the inner wall of the shell.

8. A flexible tuyere according to any one of claims 1 to 5, wherein The shell comprises a first enclosure and a second enclosure, the second enclosure is arranged above the first enclosure, the first enclosure is a circular ring, the second enclosure is arranged to extend outward from the first enclosure, the first enclosure surrounds the flow guide structure, and the second enclosure is located above the flow guide structure.

9. A flexible air nozzle according to claim 8, wherein, A plurality of ventilation openings are arranged on the second enclosure, the ventilation openings are V-shaped, the openings of the ventilation openings face the air outlet, and the widths of the ventilation openings gradually increase along the direction.

10. The flexible air nozzle of claim 8, wherein, The height of the first enclosure is h1, the height of the second enclosure is h2, and 1≤h2 / h1≤2.

Images