Extension piece and blow dryer

Abstract

This application relates to an extension component and a hair dryer. The extension component is detachably mounted on the air outlet of a hair dryer. The extension component includes: an air inlet, which communicates with the air outlet when the extension component is mounted on the hair dryer; and multiple air outlets, all communicating with the air inlet. When the user needs to dry their hair, the extension component can be detached from the hair dryer, allowing the hair dryer to generate a high-speed airflow that directly blows out from the air outlet to dry the hair. When the user does not need to dry their hair, the extension component can be mounted on the hair dryer, extending its use as a cooling fan or heating device. Thus, the extension component enables a traditional hair dryer to be used not only for drying hair but also as a cooling fan and heating device, significantly increasing the utilization rate of the hair dryer and preventing it from becoming idle.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to an extension and a hair dryer. Background Technology

[0002] Hair dryers are a common personal care appliance in daily life and a necessity for household users. However, the current function of hair dryers is relatively simple, only drying hair, and the single use time is short. Therefore, traditional hair dryers are not widely used in daily life. Summary of the Invention

[0003] Therefore, it is necessary to provide an extension component and a hair dryer to address the issue of low usage rates of hair dryers.

[0004] An extension member detachably mounted on the nozzle of a hair dryer, the extension member comprising:

[0005] Air inlet: When the extension is installed on the hair dryer, the air inlet is connected to the air outlet;

[0006] Multiple air outlets are connected to the air inlet.

[0007] In one embodiment, the extension further includes a plurality of air outlet cavities arranged circumferentially around an air outlet axis, each of the air outlet cavities being connected to the air inlet, and each of the air outlet cavities being connected to one of the air outlets.

[0008] In one embodiment, the width of each of the air outlet chambers in the circumferential direction of the air outlet axis is greater than the width of the air outlet in the circumferential direction of the air outlet axis.

[0009] In one embodiment, the air outlet is a narrow slit.

[0010] In one embodiment, the plurality of air outlets are arranged radially around an air outlet axis.

[0011] In one embodiment, the width of each air outlet cavity at the middle of the air outlet axis is greater than the width of the air outlet cavity at both ends of the air outlet axis, and the air outlet is disposed at one end of the air outlet cavity in the air outlet axis direction.

[0012] In one embodiment, the extension includes a connecting member and a plurality of fan blades. The connecting member is detachably mounted on the hair dryer and extends longitudinally along the air outlet axis. The connecting member has the air inlet and an air inlet channel communicating with the air inlet.

[0013] Multiple fan blades are arranged radially around the air outlet axis on the connecting member, and each fan blade is provided with an air outlet cavity and an air outlet, and each air outlet cavity is connected to the air inlet channel.

[0014] In one embodiment, the inner wall of the air inlet channel is provided with a plurality of diversion ports, each of which is connected to one of the air outlet chambers;

[0015] The extension also includes a diverter disposed within the air inlet channel, the diverter being used to guide the airflow within the air inlet channel into the plurality of diverter ports.

[0016] In one embodiment, a plurality of the diverter ports are arranged circumferentially around the diverter, the diverter having a conical portion with the tip of the conical portion facing the air inlet.

[0017] In one embodiment, the extension further includes a plurality of reinforcing members, with each reinforcing member disposed between every two connected fan blades, and each reinforcing member having its two ends connected to two adjacent fans respectively.

[0018] A hair dryer appliance, including a hair dryer and an extension as described in any of the preceding claims.

[0019] In one embodiment, the hair dryer further includes a base for supporting the hair dryer, and the hair dryer is mounted on the base.

[0020] In one embodiment, the air inlet of the extension can be fitted onto the air outlet of the hair dryer.

[0021] In one embodiment, the extension member is further provided with a limiting part, which engages with the hair dryer when the extension member is installed on the hair dryer.

[0022] In one embodiment, the hair dryer includes a handle;

[0023] The limiting part is a limiting groove recessed on the extension member. When the extension member is installed on the hair dryer, the handle passes through the limiting groove.

[0024] The aforementioned extension allows the user to detach it from the hair dryer when they need to dry their hair. The high-speed airflow generated by the hair dryer is then directly blown out from the nozzle to dry the hair. When the user does not need to dry their hair, the extension can be attached to the hair dryer, extending its use as a cooling or heating device. Thus, this extension allows the traditional hair dryer to be used not only for drying hair but also as a cooling or heating device, significantly increasing its utilization and preventing it from becoming idle. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the blower appliance in some embodiments of this application;

[0026] Figure 2 for Figure 1 A schematic diagram of the front structure of the blower in the embodiment;

[0027] Figure 3 for Figure 1 A side view of the blower appliance in the embodiment;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure of the extension component of the blower in the embodiment;

[0029] Figure 5 for Figure 1 A schematic diagram of the extension component of the blower appliance in the embodiment from another perspective;

[0030] Figure 6 for Figure 4 A cross-sectional schematic diagram of the fan blades in the extension component of the blower in the embodiment;

[0031] Figure 7 for Figure 6 Enlarged view at point A;

[0032] Figure 8 for Figure 4 A cross-sectional schematic diagram of the extension component of the blower in the embodiment;

[0033] Figure 9 for Figure 1 A schematic diagram of the blower appliance in the embodiment from another perspective.

[0034] Explanation of reference numerals in the attached figures:

[0035] Base 10;

[0036] Hair dryer 20; nozzle 21; handle 22;

[0037] 40; 41; 42; 43; 44;

[0038] Connecting component 50; fan blade 51; flow divider 52; flow divider 53; cone 54; reinforcing component 55; limiting part 56; limiting groove 57;

[0039] Air outlet axis X; circumferential direction Y. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figure 1 , Figure 2 and Figure 3 An embodiment of this application provides a hair dryer, including a hair dryer 20 and an extension member 40. The hair dryer 20 has an air outlet 21 for blowing air. The extension member 40 is detachably mounted on the hair dryer 20 and has an air inlet 41 and multiple air outlets 43, each communicating with the air inlet 41. When the extension member 40 is mounted on the hair dryer 20, the air inlet 41 is connected to the air outlet 21. That is, when the extension member 40 is detached from the hair dryer 20, the airflow generated by the hair dryer 20 blows directly out from the air outlet 21. When the extension member 40 is mounted on the hair dryer 20, the airflow generated by the hair dryer 20 enters the air inlet 41 through the air outlet 21 and finally flows out from the multiple air outlets 43.

[0047] In actual use, when the user needs to dry their hair, the extension 40 can be removed from the hair dryer 20. The hair dryer 20 generates a high-speed airflow that blows directly out from the air outlet 21 of the hair dryer 20. At this time, the user can pick up the hair dryer 20 directly to dry their hair.

[0048] When the user does not need to dry their hair, the extension 40 can be installed on the hair dryer 20. When the hair dryer 20 is turned on, the high-speed airflow blown out from the nozzle 21 will enter the air inlet 41 of the extension 40 and finally flow out from the multiple air outlets 43 on the extension 40. In this way, after the airflow blown out from the nozzle 21 flows out through the multiple air outlets 43 of the extension 40, the airflow speed is reduced and the airflow coverage area is increased.

[0049] At this time, depending on the temperature of the airflow blown out by the hair dryer 20, the user can obtain different physical sensations. For example, when the airflow blown out by the hair dryer 20 is cold, the hair dryer can be used as a cooling fan. When the airflow blown out by the hair dryer 20 is hot, the hair dryer can be used as a heating device.

[0050] When the user needs to dry their hair, the extension 40 can be detached from the hair dryer 20, allowing the hair dryer 20 to generate a high-speed airflow that blows directly from its nozzle 21 to dry the hair. When the user does not need to dry their hair, the extension 40 can be attached to the hair dryer 20, extending its use as a cooling or heating device. Thus, this extension allows the traditional hair dryer to be used not only for drying hair but also as a cooling or heating device, significantly increasing its utilization and preventing it from becoming idle.

[0051] To enable the hair dryer 20 to blow out either hot or cold air from the air outlet 21 as needed, the hair dryer 20 includes an air blowing channel connected to the air outlet 21 and a heating element disposed within the air blowing channel. When the user needs the hair dryer 20 to blow out hot air, the heating element within the air blowing channel can be heated, thereby heating the airflow passing through the air blowing channel, ultimately causing hot air to be blown out from the air outlet 21. Conversely, when the user needs the hair dryer 20 to blow out cold air, the heating element within the air blowing channel can be deactivated, and the airflow within the air blowing channel will not be heated and will directly blow out from the air outlet 21, thus allowing cold air to be blown out from the air outlet 21. Optionally, the heating element is a heating wire.

[0052] It should be noted that in order for the hair dryer 20 to blow air out of the air outlet 21, the hair dryer 20 is also equipped with an air pump and a motor that drives the air pump. This part of the structure is similar to that of a traditional hair dryer and will not be described in detail here.

[0053] In some embodiments of this application, see [reference] Figure 4Each air outlet 43 on the extension 40 is slit-shaped. A slit means that the air outlet 43 is a narrow gap. When airflow passes through the slit, according to the slit effect, the cross-sectional area of ​​the airflow decreases at the slit, thereby increasing the airflow velocity. When the user uses the hair dryer as a cooling fan, the increased airflow velocity through the slits makes the user feel a faster airflow from the hair dryer, resulting in better cooling. When the user uses the hair dryer as a heating device, the increased airflow velocity through the slits allows the hair dryer to cover a larger area, thus improving the heating effect.

[0054] In other embodiments, the air outlet 43 may also be in the form of a small hole, as long as it can increase the airflow velocity.

[0055] In some embodiments, see Figure 4 Multiple air outlets 43, shaped like narrow slits, are arranged radially around an air outlet axis X, such as... Figure 3 As shown, multiple radially arranged air outlets 43 ensure that the airflow from each outlet 43 flows along the direction of the air outlet axis X, preventing interference and turbulence between adjacent outlets. This radial arrangement of multiple air outlets 43 results in a more stable airflow from the hair dryer and a wider airflow coverage area, improving the user experience whether the hair dryer is used as a cooling or heating device.

[0056] In some embodiments, see Figure 5 , Figure 6 and Figure 7 To connect each air outlet 21 to the air inlet 41, the extension component 40 also includes multiple air outlet chambers 42 arranged circumferentially around an air outlet axis X. Each air outlet chamber 42 is connected to the air inlet 41, and each air outlet chamber 42 is correspondingly connected to one of the air outlets 43. In actual use, the airflow blown from the air outlet 21 into the air inlet 41 is diverted into the multiple air outlet chambers 42, and finally blown out from the multiple air outlets 43.

[0057] In this design, the width of each air outlet cavity 42 along the circumferential direction Y of the air outlet axis X is greater than the width of the air outlet 43 along the circumferential direction Y of the air outlet axis X. Therefore, when the width of the air outlet cavity 42 is greater than the width of the air outlet 43, the airflow entering the air outlet cavity 42 will not directly enter the air outlet 43. Instead, it will preferentially gather and compress within the air outlet cavity 42 until the entire air outlet cavity 42 is filled before being discharged from the air outlet 43. At this point, the airflow at the air outlet 43 is affected not only by the narrow slit but also by the air pressure within the air outlet cavity 42. The air pressure within the air outlet cavity 42 further compresses the airflow at the narrow slit, thereby increasing the speed of the airflow blown out from the air outlet 43. This enhances the cooling effect of the blower as a cooling fan and its heating effect as a heating device.

[0058] Specifically, the width of each air outlet cavity 42 in the middle of the direction of the air outlet axis X is greater than the width of the air outlet cavity 42 at both ends in the direction of the air outlet axis X. That is, each air outlet cavity 42 has a shape that is narrow at both ends and wide in the middle, and the air outlet 43 is located at one end of the air outlet cavity 42 in the direction of the air outlet axis X.

[0059] In actual use, the airflow entering the air outlet cavity 42 will gather in the middle of the air outlet cavity 42, and the airflow flowing to both ends of the air outlet cavity 42 will also flow back to the middle of the air outlet cavity 42 under the guidance of the inner wall of the air outlet cavity 42, further increasing the pressure of the gas in the middle of the air outlet cavity 42. When the airflow gathers in the middle of the air outlet cavity 42 and is pressurized to a certain level, it will be discharged from the air outlet 43. After the pressurized gas is discharged from the narrow slit-shaped air outlet 43, the airflow speed is greatly increased.

[0060] In some specific embodiments, the extension member 40 includes a connecting member 50 and multiple fan blades 51. The connecting member 50 is detachably mounted on the hair dryer 20 and extends longitudinally along the air outlet axis X. The connecting member 50 has an air inlet 41 and an air inlet channel 44 connecting the air inlet 41. The multiple fan blades 51 are arranged radially around the air outlet axis X on the connecting member 50, and each fan blade 51 has an air outlet cavity 42 and an air outlet 43. Each air outlet cavity 42 is connected to the air inlet channel 44. When the air outlet 21 of the extension member 40 blows out airflow, it enters the air inlet channel 44 through the air inlet 41. The airflow is split into multiple streams in the air inlet channel 44 and enters the air outlet 42 of the multiple fan blades 51. Finally, the airflow is discharged from the air outlet 43 on the fan blades 51.

[0061] When the extension piece 40 is installed on the extension piece 40, the overall structure of the blower is similar to that of a traditional electric fan, making it highly recognizable in appearance. The blades of a traditional electric fan also rotate during operation, which poses a safety hazard of pinching fingers. However, the multiple fan blades 51 of the blower are all fixed relative to the connecting piece 50, eliminating the safety hazard of pinching fingers.

[0062] Specifically, in some embodiments, see [link to relevant documentation]. Figure 8 The inner wall of the air inlet channel 44 is provided with multiple diversion ports 52, each of which is connected to one of the air outlet chambers 42. The extension component 40 also includes a diversion component 53 disposed in the air inlet channel 44. The diversion component 53 is used to guide the airflow in the air inlet channel 44 into the multiple diversion ports 52, so that the airflow in the air inlet channel 44 can enter the air outlet chambers 42 in the multiple fan blades 51 through the diversion component 53.

[0063] It should be noted that even without the diverter 53, the airflow can still flow into multiple diverters 52 after it accumulates in the air inlet channel 44. However, this will cause turbulence in the air inlet channel 44, resulting in a decrease in the airflow velocity entering the diverters 52. The diverter 53 can guide the airflow in the air inlet channel 44 to avoid turbulence and reduce the loss of airflow velocity.

[0064] Optionally, multiple diversion ports 52 are arranged circumferentially around the diversion member 53. The diversion member 53 has a cone 54, the tip of which faces the air inlet 41. When the airflow passes through the cone 54, it is diverted by the cone 54 to form an annular airflow, so that the airflow can enter the multiple diversion ports 52. In other embodiments, the diversion member 53 may also be a guide plate or other structure, which is not limited here.

[0065] In some embodiments, the extension member 40 further includes a plurality of reinforcing members 55, with a reinforcing member 55 provided between each pair of connected fan blades 51. The two ends of each reinforcing member 55 are respectively connected to two adjacent fans, so that the plurality of fan blades 51 are connected to each other to form a whole through the plurality of reinforcing members 55, so that when the blower blows air through the air outlet 43 of the plurality of fan blades 51, the blower is more stable as a whole, thereby making the air output effect of the blower more stable.

[0066] In some embodiments of this application, the hair dryer also includes a base 10 for supporting the hair dryer. The hair dryer 20 is mounted on the base 10, which supports the hair dryer on a mounting base, such as a desktop. The user can then fix the hair dryer to the desktop using the base 10. Thus, when the user does not need to dry their hair, the extension 40 can be mounted on the hair dryer 20, and the hair dryer can be fixed to the desktop using the base 10, greatly improving the convenience of using the hair dryer as a cooling fan or heating device.

[0067] In some embodiments of this application, when the extension member 40 is installed on the hair dryer 20, the air inlet 41 of the extension member 40 is sleeved on the air outlet 43 of the extension member 40. The sleeved method not only makes it convenient to install the extension member 40 on the hair dryer 20, but also allows the air inlet 41 and the air outlet 43 to be directly connected after the extension member 40 is installed on the hair dryer 20, which greatly facilitates the user to install and remove the extension member 40.

[0068] Specifically, an air inlet 41 is provided on one end of the connecting member 50. When the extension member 40 needs to be installed on the hair dryer 20, one end of the connecting member 50 can be directly fitted onto the air outlet 43 of the extension member 40. When the extension member 40 needs to be disassembled, the connecting member 50 can be moved in the opposite direction to separate the connecting member 50 from the extension member 40.

[0069] In some embodiments of this application, see [reference] Figure 5 and Figure 9 The extension member 40 is also provided with a limiting part 56. When the extension member 40 is installed on the hair dryer 20, the limiting part 56 and the hair dryer 20 are engaged with each other, so that the extension member 40 and the hair dryer 20 are fixed into a whole by the limiting part 56. This not only avoids relative movement between the limiting part 56 and the hair dryer 20, but also makes the hair dryer more stable as a whole when it blows air through the extension member 40.

[0070] In some embodiments, the hair dryer 20 further includes a handle 22, which is connected to the base 10. The limiting part 56 is a limiting groove 57 recessed on the hair dryer 20. When the extension member 40 is installed on the hair dryer 20, the handle 22 passes through the limiting groove 57 to fix the handle 22 in the limiting groove 57, thereby achieving the effect of fixing the hair dryer 20 and the extension member 40 to each other.

[0071] It should be noted that in other embodiments, the limiting part 56 may also be a common structure for disassembly and assembly, such as a snap-fit, and is not limited here.

[0072] The above-mentioned blowing device has at least the following advantages:

[0073] When the user needs to dry their hair, the extension 40 can be detached from the hair dryer 20. The hair dryer 20 generates a high-speed airflow, which is directly blown out from the nozzle 21 of the hair dryer 20 to dry the hair. When the user does not need to dry their hair, the extension 40 can be installed on the hair dryer 20 to extend its use as a cooling fan or a heating device. In this way, the extension allows the traditional hair dryer to be used not only for drying hair but also as a cooling fan and a heating device, thereby greatly improving the utilization rate of the hair dryer and preventing it from being idle.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An extension component, characterized in that, The extension is detachably mounted on the air outlet (21) of the hair dryer (20), and the extension includes: Air inlet (41), when the extension is installed on the hair dryer (20), the air inlet (41) is connected to the air outlet (21); Multiple air outlets (43) are connected to the air inlet (41), and the air outlets (43) are narrow slits; The extension also includes a plurality of air outlet chambers (42) arranged circumferentially around an air outlet axis (X), each of the air outlet chambers (42) being connected to the air inlet (41), and each of the air outlet chambers (42) being connected to one of the air outlets (43). The extension includes a connecting member (50) and a plurality of fan blades (51). The connecting member (50) is detachably mounted on the hair dryer (20) and extends longitudinally along the air outlet axis (X). The connecting member (50) is provided with the air inlet (41) and an air inlet channel (44) connecting the air inlet (41). Multiple fan blades (51) are arranged radially around the air outlet axis (X) on the connecting member (50), and each fan blade (51) is provided with an air outlet cavity (42) and an air outlet (43), and each air outlet cavity (42) is connected to the air inlet channel (44).

2. The extension according to claim 1, characterized in that, Multiple air outlets (43) are arranged radially around an air outlet axis (X).

3. The extension according to claim 1, characterized in that, The width of each of the air outlet chambers (42) in the circumferential direction (Y) of the air outlet axis (X) is greater than the width of the air outlet (43) in the circumferential direction (Y) of the air outlet axis (X).

4. The extension according to claim 3, characterized in that, The width of each air outlet cavity (42) at the middle part of the air outlet axis (X) is greater than the width of the air outlet cavity (42) at both ends of the air outlet axis (X) in the air outlet axis (X) direction, and the air outlet (43) is disposed at one end of the air outlet cavity (42) in the air outlet axis (X) direction.

5. The extension according to claim 1, characterized in that, The inner wall of the air inlet channel (44) is provided with a plurality of diversion ports (52), and each diversion port (52) is connected to one of the air outlet chambers (42); The extension also includes a diverter (53) disposed in the air inlet channel (44), the diverter (53) being used to guide the airflow in the air inlet channel (44) into the plurality of diverters (52).

6. The extension according to claim 5, characterized in that, Multiple of the diversion ports (52) are arranged circumferentially around the diversion member (53), the diversion member (53) having a cone (54) with the tip of the cone (54) facing the air inlet (41).

7. The extension according to claim 1, characterized in that, The extension also includes a plurality of reinforcing members (55), and a reinforcing member (55) is provided between each pair of connected fan blades (51), with each end of the reinforcing member (55) being connected to the two adjacent fan blades (51) respectively.

8. A hair dryer, characterized in that, Includes a hair dryer, and the extension (40) as described in any one of claims 1-7.

9. The hair dryer according to claim 8, characterized in that, The hair dryer also includes a base (10) for supporting the hair dryer, and the hair dryer (20) is mounted on the base (10).

10. The hair dryer according to claim 9, characterized in that, The air inlet (41) of the extension (40) can be fitted onto the air outlet (43) of the hair dryer (20).

11. The hair dryer according to claim 8, characterized in that, The extension member (40) is also provided with a limiting part (56), and when the extension member (40) is installed on the hair dryer (20), the limiting part (56) and the hair dryer (20) are engaged with each other.

12. The hair dryer according to claim 11, characterized in that, The hair dryer (20) includes a handle (22); The limiting part (56) is a limiting groove (57) recessed on the extension member (40). When the extension member (40) is installed on the hair dryer (20), the handle (22) passes through the limiting groove (57).

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