Oblique air outlet type hair drying apparatus

Abstract

The present utility model relates to the technical field of handheld drying apparatuses, and discloses an oblique air outlet type hair drying apparatus, comprising a body and a head, wherein an air outlet device is provided inside the body; an air outlet structure is formed on the head; the head extends upward obliquely at an end of the body, and the included angle between the head and the body is an obtuse angle; the air outlet structure is located on a sidewall of the head, and an opening of the air outlet structure faces the side of the head forming the included angle with the body. When the hair drying apparatus is used, it is only necessary to keep the head in a transverse state above the top of the head of a user, and cause the included angle between the head and the body to face the top of the head of the user, and then air outlets on the sidewall of the head can directly face the hair on the top of the head of the user; moreover, at this time, the body is in a vertical state, and when the body is held, an upper arm of a user does not need to be raised significantly and it is only necessary to keep a forearm in a vertical state and lift same upward, so that a wrist is above the top of the head of the user. Thus, the hair drying apparatus in the present solution is relatively labor-saving during use, is less likely to cause arm fatigue, and is more ergonomic.

Description

A type of slanted air outlet hair drying device Technical Field

[0001] This utility model relates to the technical field of handheld drying devices, and in particular to a slanted air outlet hair drying device. Background Technology

[0002] Chinese patent CN215583359U discloses a hair dryer that is easy to assemble. The hair dryer includes a body and a head, which are L-shaped as a whole. The head has a built-in air outlet device, and the end of the head is provided with an air outlet for the air outlet device to output airflow.

[0003] To blow-dry hair directly on the top of the head, the hair dryer head must be held vertically and pointed towards the top of the head. This means the hair dryer body must be horizontal and positioned above the head. To achieve this, the user's arm needs to be raised, with the upper arm at shoulder height, the forearm bent at an angle of less than 90° to the upper arm, and the wrist bent to hold the hair dryer. Furthermore, the position and angle of the hair dryer must be constantly changed to achieve a quick-drying effect. This makes operation quite strenuous, easily causing hand fatigue, and is not ergonomic. Utility Model Content

[0004] To address the drawback of existing hair dryers requiring significant arm elevation and bending of joints when drying hair directly on the head, which makes them laborious to use, the purpose of this invention is to provide a slanted airflow hair drying device that allows drying hair directly on the head without requiring significant arm elevation.

[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0006] An oblique-outlet hair drying device includes a body and a head. An air outlet structure is formed on the head, and an air outlet device is built into the body. The head is located at the end of the body and extends upward at an obtuse angle with the body. The air outlet structure is located on the side wall of the head and the opening faces the side where the head and body form an angle.

[0007] Using the above solution, when using the hair drying device, simply position the head horizontally above the head, with the angle between the head and the body pointing towards the top of the head. The air outlet on the side wall of the head will then blow directly onto the hair on the top of the head. At this time, the body is vertical, and when holding the body, the upper arm does not need to be raised significantly. Only the forearm needs to be kept vertical and raised upwards so that the wrist is above the top of the head. Therefore, the hair drying device in this solution is less strenuous to use, less likely to cause hand fatigue, and is more ergonomic.

[0008] Preferably, the angle between the nose and the fuselage is any angle within the range of 120° to 140°.

[0009] By adopting the above solution, the range of the angle between the head and the body is further limited. Its advantage is that during the blow-drying process, the head blows air more closely to the head shape. When the hand holds the body, the wrist and forearm can maintain a more comfortable posture, which is ergonomic, and the operation is appropriate, comfortable and easy, which is a manifestation of humanized design.

[0010] Preferably, the head unit includes an outer shell assembly and an inner shell assembly disposed inside the outer shell assembly, and the air outlet structure includes a first air outlet formed on the outer shell assembly and a second air outlet formed on the inner shell assembly that is connected to the first air outlet.

[0011] Preferably, a heat-insulating cavity is formed between the outer shell assembly and the inner shell assembly, and a heat dissipation structure is formed to accelerate the cooling of the heat-insulating cavity. The heat dissipation structure includes a first heat dissipation hole opened on the outer shell assembly near the first air outlet and a second heat dissipation hole opened on the side wall of the outer shell assembly other than the one with the first heat dissipation hole.

[0012] Using the above scheme, when the air outlet is output, the hot airflow causes the inner shell component to heat up rapidly. The heat insulation cavity utilizes the poor thermal conductivity of air to effectively prevent heat transfer from the inner shell component to the outer shell component. The heat dissipation structure in this scheme allows for gas exchange between the heat insulation air and the outside air, and it can also accelerate the gas exchange speed when the hair dryer is working. When the hair dryer blows air outward, the airflow velocity at the first air outlet is much higher than the airflow velocity near the first heat dissipation hole. This phenomenon causes the air pressure at the first heat dissipation hole to decrease, generating a certain suction force, which causes the gas in the heat insulation cavity to flow out of the first vent at an accelerated speed. At the same time, the outside air can be replenished into the heat insulation cavity through the second vent, and the circulation accelerates the heat dissipation.

[0013] Preferably, the first air outlet and the second air outlet are elongated and extend along the direction of the machine head, and at least two sets of the first air outlet and the second air outlet are arranged side by side.

[0014] By adopting the above scheme, the shape and arrangement of the air outlet can maximize the area of ​​the air outlet structure and increase the air volume of the drying device.

[0015] Preferably, the inner shell assembly includes a pair of interconnected inner shell components connected to the body, and a diversion component built between the two inner shell components for uniformly diverting the airflow output by the air outlet device. The diversion component includes several arc-shaped diversion blades, which are distributed at intervals along the second air outlet and are connected to the air outlet one by one. The overall length of the diversion blades increases from the air outlet structure near the body to the distance from the body.

[0016] Preferably, the diverter blades have ribs extending to the side facing the second air outlet, with the ends flush with or extending beyond the second air outlet.

[0017] By adopting the above scheme, the arrangement of the diverting blades in this scheme minimizes the obstruction of the airflow output by the diverting blades that are close to the air outlet, and makes the airflow received by each diverting blade more uniform, thereby making the airflow at each outlet more uniform.

[0018] The purpose of setting up multiple split-flow blades in this design is to divide the air outlet into multiple air outlet areas. The ribs, as extensions of the split-flow blades, function as tracks. As the airflow passes through the ribs from the split-flow blades, the directionality of the flow is enhanced, allowing the airflow in each area to form an independent column of air. This column of air has a certain impact force, which can have a certain massage effect when blowing on the head, thus providing a relaxing effect.

[0019] Preferably, the flow diversion component also includes a splicing frame that is respectively spliced ​​and fixed to the two inner shell components, the flow diversion blades are integrally formed on the splicing frame, and a splicing structure is provided between the inner shell component and the flow diversion component to form a second air outlet when the two are spliced ​​together.

[0020] Preferably, when there are two second air outlets, the splicing structure includes a first notch formed on the inner shell component and a second notch formed on both sides of the splicing frame, which, when the diversion component is spliced ​​with the inner shell component, respectively splices with the first notch to form the second air outlet.

[0021] Using the above approach, the inner shell component is usually produced by die casting using metal sheets. Designing too many structures in the inner cavity increases the difficulty of designing the die casting mold and demolding. This approach designs the diversion component as an independent component, which is spliced ​​into the inner shell assembly during assembly. It does not need to be designed as part of the inner shell component, which simplifies the design complexity and reduces the difficulty of production.

[0022] Preferably, the head also includes a noise reduction structure for reducing the operating noise of the hair drying device. The noise reduction structure includes a flange protruding from the edges of the first notch and the second notch, and a groove formed by the recess of the outer shell assembly at the first air outlet. When the first notch and the second notch are joined together, the flange can be inserted into the groove to form abutment, and the flange and the groove are tightly fitted together.

[0023] With the above solution, since the inner shell component and the flow distribution component are independent parts, the second air outlet is composed of all three. When the drying device is working, the airflow impacts the second air outlet, causing the inner shell component and the flow distribution component to vibrate and collide with each other, thus generating noise. The flange in this solution can be inserted into the groove and fit tightly with it. As the flange is part of the inner shell component or the flow distribution component, when its movement is restricted, it is difficult for the airflow to cause vibration when it impacts the inner shell component, thus improving the defect of large noise caused by the collision between the inner shell components.

[0024] This utility model, by adopting the above technical solution, has significant technical effects: When using the hair drying device in this solution, simply keep the head horizontal above the head and make the angle between the head and the body point towards the top of the head. The air outlet on the side wall of the head can then blow directly onto the hair on the top of the head. At this time, the body is vertical. When holding the body, the upper arm does not need to be raised significantly. Only the forearm needs to be kept vertical and raised upwards so that the wrist is above the top of the head. Therefore, the hair drying device in this solution is more labor-saving to use, less likely to cause hand fatigue, and is more ergonomic. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the external structure of a slanted air outlet hair drying device according to this embodiment;

[0026] Figure 2 is a front view of a slanted air outlet hair drying device according to this embodiment;

[0027] Figure 3 is a magnified view of AA in Figure 2;

[0028] Figure 4 is a three-dimensional perspective split diagram of a slanted air outlet hair drying device according to this embodiment;

[0029] Figure 5 is a magnified view of part B in Figure 4;

[0030] Figure 6 is a three-dimensional perspective split diagram of a slanted air outlet hair drying device according to this embodiment;

[0031] Figure 7 is a magnified view of part C in Figure 6;

[0032] Figure 8 is a magnified view of part D in Figure 6;

[0033] Figure 9 is a three-dimensional perspective split diagram of a slanted air outlet hair drying device according to this embodiment;

[0034] Figure 10 is a magnified view of E in Figure 9;

[0035] Figure 11 is a split view of the right side of an oblique air outlet hair drying device according to this embodiment;

[0036] Figure 12 is a magnified view of a portion of F in Figure 11;

[0037] Figure 13 is a right view of a slanted air outlet hair drying device according to this embodiment;

[0038] Figure 14 is a magnified view of a portion of GG in Figure 13;

[0039] Figure 15 is a magnified view of H in Figure 14;

[0040] Figure 16 is a magnified view of J in Figure 14.

[0041] The parts referred to by the numbers in the above attached figures are as follows: 1. Body; 101. Fastening groove; 2. Air outlet device; 201. Electric fan; 202. Heating wire frame; 3. Outer shell component; 301. Slot; 302. Buckle; 303. First protrusion; 304. First slot; 4. First air outlet; 5. Second air outlet; 6. Insulation cavity; 7. First heat dissipation hole; 8. Second heat dissipation hole; 9. Inner shell component ; 901, Fastener; 902, Mounting hole; 903, Second protrusion; 904, Second slot; 905, Fastening block; 906, Clearance groove; 10, Diverter component; 11, Splicing frame; 1101, Splicing plate; 1102, Positioning post; 1103, Divider plate; 12, Positioning hole; 13, Diverter blade; 1301, Protrusion rib; 14, First notch; 15, Second notch; 16, Flange; 17, Groove. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Example 1

[0043] A slanted air-discharge hair drying device, as shown in Figures 1 and 3, includes a body 1 and a head. An air outlet structure is formed on the head. An air outlet device 2 is built into the body 1. The air outlet device 2 includes an electric fan 201 and an electric heating wire frame 202 fixed inside the body 1. The electric heating wire frame 202 is located between the air outlet end of the electric fan 201 and the air outlet structure. When the electric fan 201 and the electric heating wire frame 202 work simultaneously, the hair drying device can output hot air. When only the electric fan 201 works, the hair drying device can output cool air. The above-mentioned structure of the air outlet device 2 is prior art and is not an improvement of this embodiment. Therefore, it will not be described in detail in this embodiment.

[0044] The improvement of this embodiment is that, as shown in Figures 1, 3, and 4, the head unit is located at the end of the body 1 and extends upward at an angle, forming an angle between the head unit and the body 1. This angle is any angle within the range of 120° to 140°. In this embodiment, the angle between the head unit and the body 1 is 130°. The head unit includes a shell assembly and an inner shell assembly built into the shell assembly. As shown in Figure 4, in this embodiment, the air outlet structure includes a first air outlet 4 formed on the shell assembly and a second air outlet 5 formed on the inner shell assembly. The first air outlet 4 and the second air outlet 5 are connected to each other and their openings face the side where the head unit and the body 1 form an angle. In this embodiment, the first air outlet 4 and the second air outlet 5 are elongated and extend along the direction of the head unit. Two sets of the first air outlet 4 and the second air outlet 5 are arranged side by side.

[0045] Based on the above structure and referring to Figures 1-4, it can be seen that when using the hair drying device in this embodiment, the head only needs to be positioned horizontally above the head, with the angle between the head and the body 1 pointing towards the top of the head. The air outlet on the side wall of the head can then blow directly onto the hair on the top of the head. At this time, the body 1 is vertical. When holding the body 1, the upper arm does not need to be raised significantly. Only the forearm needs to be kept vertical and raised upwards so that the wrist is above the top of the head. Therefore, the hair drying device in this solution is more labor-saving to use, less likely to cause hand fatigue, and is more ergonomic. Example 2

[0046] Based on Example 1, this example further defines a slanted air outlet hair drying device.

[0047] As shown in Figure 4, in this embodiment, the outer shell assembly includes a pair of interlocking outer shell components 3, one of which has a first air outlet 4. The outer shell components 3 are fixed by a snap-fit ​​structure. As shown in Figures 5 and 15, the snap-fit ​​structure includes a slot 301 and a buckle 302 respectively disposed on the outer shell components 3 and capable of correspondingly snapping into each other. It also includes a first protrusion 303 and a first slot 304 formed on the edge of the outer shell components 3. When the outer shell components 3 are assembled, the slot 301 and the buckle 302 snap together, and the first protrusion 303 is inserted into the first slot 304. The buckle 302 and the slot 301 ensure the connection of the outer shell components 3. The first slot 304 and the first protrusion 303 cooperate with each other to limit the movement between the two outer shell components 3 and increase the stability of the fit.

[0048] As shown in Figure 15, a heat-insulating cavity 6 is formed between the outer shell assembly and the inner shell assembly. The outer shell assembly and the inner shell assembly are provided with heat dissipation structures to accelerate the cooling of the heat-insulating cavity 6. As shown in Figures 1, 4, and 15, the heat dissipation structure includes a first heat dissipation hole 7 opened on the outer shell assembly near the first air outlet 4. In this embodiment, since the first air outlet 4 is elongated, several first heat dissipation holes 7 are spaced apart along the direction in which the first air outlet 4 is opened. In addition to the first heat dissipation hole 7, a second heat dissipation hole 8 is opened on the side wall of the outer shell assembly. The second heat dissipation hole 8 is opened on both sides of the outer shell assembly. In this embodiment, a corresponding semi-annular recess is formed at the splicing point of the two outer shell components 3. After the outer shell components 3 are connected, the semi-annular recesses are spliced ​​to form the second heat dissipation hole 8. Several second heat dissipation holes 8 are spaced apart along the extension direction of the machine head.

[0049] Based on the above structure and referring to Figures 1, 4, and 15, it can be seen that when the inclined air outlet hair dryer in this embodiment is working, the hot air causes the inner shell assembly to heat up rapidly. The heat insulation cavity 6 utilizes the poor thermal conductivity of air to effectively prevent heat transfer from the inner shell assembly to the outer shell assembly. At the same time, when the hair dryer is working, the air velocity at the first air outlet 4 is much higher than the air velocity near the first heat dissipation hole 7. This phenomenon causes the air pressure at the first heat dissipation hole 7 to decrease, generating a certain suction force, which causes the gas in the heat insulation cavity 6 to flow out from the first vent at an accelerated rate. Meanwhile, external air can be replenished into the heat insulation cavity 6 from the second vent, and the circulation accelerates heat dissipation. Example 3

[0050] Based on Embodiment 2, this embodiment further defines an oblique air outlet type hair drying device.

[0051] As shown in Figures 6 and 8, the inner shell assembly includes a pair of interconnected inner shell components 9. The inner shell components 9 are connected to the fuselage 1 during assembly. In this embodiment, the two inner shell components 9 are connected by fasteners 901. Each inner shell component 9 has a mounting hole 902 for inserting the fastener 901. As shown in Figure 14, a second protrusion 903 and a second slot 904 are formed at the edges of the two inner shell components 9, respectively. During assembly, the second protrusion 903 is inserted into the second slot 904 for pre-positioning, and then the two are locked together using the fasteners 901. The second protrusion 903 and the second slot 904 can restrict the movement of the inner shell components 9, increasing the stability of the fit. The inner shell components 9 are provided with a fastening structure for connecting to the fuselage 1. As shown in Figures 9 and 10, the fastening structure includes a fastening point on the inner shell component 9 near the fuselage 1. The end of the fastening block 905 protrudes inward, and the body 1 has a recessed fastening groove 101 for the fastening block 905 to be fastened into. The fastening block 905 and the fastening groove 101 are distributed at intervals around the outer ring wall of the body 1. The outer surface of the inner shell component 9 has a clearance groove 906. When the outer shell component and the inner shell component are assembled, the buckle 302 and the slot 301 correspond one-to-one with the clearance groove 906. There is a gap between the clearance groove 906 and the buckle 302 and the slot 301. After the buckle 302 and the slot 301 are engaged, they will become a protruding structure on the outer shell component, which can easily come into contact with the inner shell component. The inner shell component will be at a high temperature when it is working, and the outer shell component is usually made of plastic. The inner shell component is prone to softening when in contact with high temperature for a long time, which will cause the buckle 302 and the slot 301 to stick together. The design of the clearance groove 906 can prevent the outer shell component from contacting the inner shell component.

[0052] As shown in Figures 3, 6, 7, and 8, the inner shell assembly also includes a diversion component 10. The diversion component 10 is built between the two inner shell components 9 and is spliced ​​with the two inner shell components 9 respectively. The diversion component 10 includes a splicing frame 11, on which a plurality of arc-shaped diversion blades 13 are integrally formed. The diversion blades 13 are distributed at intervals along the second air outlet 5 and are connected to the air outlet one by one. The overall length of the diversion blades 13 increases from the air outlet structure near the body 1 to the distance from the body 1. As shown in Figures 7 and 8, in this embodiment, the splicing frame 11 includes an outer... The splicing plate 1101 is shaped to fit the outer surface of the inner shell assembly. Positioning posts 1102 are protruding on both sides of the splicing plate 1101. Positioning holes 12 for the positioning posts 1102 to be inserted are respectively provided on the inner shell component 9. A partition plate 1103 is vertically protruding on the splicing plate 1101. The diverting blade 13 is integrally formed with both sides of the partition plate 1103. As shown in Figures 11 and 12, the included angle formed between the partition plate 1103 and the splicing plate 1101 can be engaged by the second protrusion 903 on the inner shell component 9, restricting the diverting component 10 from rotating around the positioning hole 12.

[0053] A splicing structure is provided between the inner shell component 9 and the diversion component 10 to form a second air outlet 5 when the two are spliced ​​together. As shown in Figures 7 and 8, the splicing structure includes a first notch 14 formed on the inner shell component 9 and a second notch 15 formed on both sides of the splicing frame 11. When the diversion component 10 is spliced ​​with the inner shell component 9, the second notches 15 on both sides of the splicing frame 11 are spliced ​​with the two first notches 14 to form two second air outlets 5.

[0054] As shown in Figures 1, 7, and 8, each diverter blade 13 has a raised rib 1301 extending toward the side of the second air outlet 5. The end of the raised rib 1301 is flush with or extends beyond the second air outlet 5.

[0055] Based on the above structure and referring to Figures 3 and 6-12, it can be seen that the purpose of setting up multi-group diversion blades 13 in this embodiment is to divide the air outlet into a multi-zone air outlet form. The rib 1301, as an extension of the diversion blades 13, acts as a track. As the airflow flows from the diversion blades 13 through the rib 1301, the directionality of the flow is enhanced, so that the airflow in each zone can independently form a wind column. This wind column has a certain impact force, which can have a certain massage effect when blowing on the head, thus playing a relaxing role. Example 4

[0056] Based on Example 3, this example further defines an oblique air outlet type hair drying device.

[0057] The head also includes a noise reduction structure for reducing the operating noise of the hair drying device. As shown in Figure 16, the noise reduction structure includes a flange 16 protruding from the edges of the first notch 14 and the second notch 15. The outer casing assembly has a recessed groove 17 at the first air outlet 4. When the first notch 14 and the second notch 15 are joined together, the flange 16 can be inserted into the groove 17 to form abutment, and the flange 16 and the groove 17 are tightly fitted together.

[0058] Based on the above structure and referring to Figures 13-16, it can be seen that in this embodiment, the flange 16 on the inner shell assembly can be inserted into the groove 17 and fit tightly with it. As part of the inner shell component 9 or the diversion component 10, when the flange 16 is restricted in its movement, it is difficult for the airflow to vibrate when impacting the inner shell assembly, thus improving the defect of large noise caused by mutual collision between inner shell components.

[0059] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slanted air-discharge hair drying device, comprising a body (1) and a head, wherein an air outlet structure is formed on the head and an air outlet device (2) is built into the body (1), characterized in that: The air outlet is located at the end of the body (1) and extends upward at an obtuse angle with the body (1). The air outlet structure is located on the side wall of the air outlet and the opening faces the side where the air outlet and the body (1) form an angle.

2. A slanted air outlet type hair drying device according to claim 1, characterized in that: The angle between the nose and the fuselage (1) is any angle within the range of 120° to 140°.

3. A slanted air outlet hair drying device according to claim 1, characterized in that: The head unit includes an outer shell assembly and an inner shell assembly disposed inside the outer shell assembly. The air outlet structure includes a first air outlet (4) formed on the outer shell assembly and a second air outlet (5) formed on the inner shell assembly and connected to the first air outlet (4).

4. A slanted air outlet type hair drying device according to claim 3, characterized in that: A heat insulation cavity (6) is formed between the outer shell assembly and the inner shell assembly, and a heat dissipation structure is formed to accelerate the cooling of the heat insulation cavity (6). The heat dissipation structure includes a first heat dissipation hole (7) opened on the outer shell assembly near the first air outlet (4) and a second heat dissipation hole (8) opened on the side wall of the outer shell assembly in addition to the first heat dissipation hole (7).

5. A slanted air outlet hair drying device according to claim 3, characterized in that: The first air outlet (4) and the second air outlet (5) are elongated and extend along the direction of the machine head. At least two sets of the first air outlet (4) and the second air outlet (5) are arranged side by side.

6. A slanted air outlet hair drying device according to claim 5, characterized in that: The inner shell assembly includes a pair of interconnected inner shell components (9) connected to the body (1) and a diversion component (10) built between the two inner shell components (9) for uniformly diverting the airflow output by the air outlet device (2). The diversion component (10) includes several arc-shaped diversion blades (13). The diversion blades (13) are distributed at intervals along the second air outlet (5) and are connected to the air outlet one by one. The overall length of the diversion blades (13) increases from the air outlet structure near the body (1) to the distance from the body (1).

7. A slanted air outlet hair drying device according to claim 6, characterized in that: The diverter blade (13) extends toward the second air outlet (5) with a raised rib (1301) whose end is flush with or extends beyond the second air outlet (5).

8. A slanted air outlet hair drying device according to claim 6, characterized in that: The diversion component (10) also includes a splicing frame (11) that is spliced ​​and fixed to the two inner shell components (9) respectively. The diversion blade (13) is integrally formed on the splicing frame (11). A splicing structure is provided between the inner shell component (9) and the diversion component (10) to form a second air outlet (5) when the two are spliced ​​together.

9. A slanted air outlet hair drying device according to claim 8, characterized in that: When there are two second air outlets (5), the splicing structure includes a first notch (14) formed on the inner shell component (9) and a second notch (15) formed on both sides of the splicing frame (11) and formed by splicing the diversion component (10) and the inner shell component (9) together with the first notch (14) to form the second air outlet (5).

10. A slanted air outlet hair drying device according to claim 9, characterized in that: The head also includes a noise reduction structure for reducing the operating noise of the hair drying device. The noise reduction structure includes a flange (16) protruding from the edges of the first notch (14) and the second notch (15). The outer casing assembly is recessed at the first air outlet (4) to form a groove (17). When the first notch (14) and the second notch (15) are joined together, the flange (16) can be inserted into the groove (17) to form abutment. The flange (16) and the groove (17) fit tightly together.

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